fix no_valid_proc (#5774)

Co-authored-by: Kim Kulling <kimkulling@users.noreply.github.com>

.coveralls.yml

@@ -1,2 +0,0 @@
-service_name: travis-pro
-repo_token: GZXuNlublKFy7HAewHAZLk5ZwgipTFAOA

.github/FUNDING.yml

@@ -1,3 +1,2 @@
-patreon: assimp
-custom: https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=4JRJVPXC4QJM4
 open_collective: assimp
+patreon: assimp

.github/ISSUE_TEMPLATE/bug_report.md

@@ -1,8 +1,8 @@
 ---
 name: Bug report
 about: Create a report to help us improve
-title: ''
-labels: ''
+title: 'Bug:'
+labels: 'Bug'
 assignees: ''
 
 ---
@@ -23,16 +23,10 @@ A clear and concise description of what you expected to happen.
 **Screenshots**
 If applicable, add screenshots to help explain your problem.
 
-**Desktop (please complete the following information):**
+**Platform (please complete the following information):**
  - OS: [e.g. iOS]
  - Browser [e.g. chrome, safari]
  - Version [e.g. 22]
 
-**Smartphone (please complete the following information):**
- - Device: [e.g. iPhone6]
- - OS: [e.g. iOS8.1]
- - Browser [e.g. stock browser, safari]
- - Version [e.g. 22]
-
 **Additional context**
 Add any other context about the problem here.

.github/ISSUE_TEMPLATE/feature_request.md

@@ -2,7 +2,7 @@
 name: Feature request
 about: Suggest an idea for this project
 title: ''
-labels: ''
+labels: 'Feature-Request'
 assignees: ''
 
 ---

.github/ISSUE_TEMPLATE/tech_debt.md

@@ -0,0 +1,25 @@
+---
+name: Technical debt
+about: Create a report to help us to fix and detect tech debts
+title: ''
+labels: 'Techdebt'
+assignees: ''
+
+---
+
+**Describe the technical debt**
+A clear and concise description of what the tech debt is about.
+
+**Better solution**
+A clear and concise description of what you would expect.
+
+**Screenshots**
+If applicable, add screenshots to help explain your problem.
+
+**Desktop (please complete the following information):**
+ - OS: [e.g. iOS]
+ - Browser [e.g. chrome, safari]
+ - Version [e.g. 22]
+
+**Additional context**
+Add any other context about the problem here.

.github/dependabot.yml

@@ -0,0 +1,11 @@
+version: 2
+updates:
+- package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+  - package-ecosystem: "gitsubmodule"
+    directory: "/"  # the .gitmodules file must be placed at the top-level directory of a git working tree
+    schedule:
+      interval: "weekly"
+    open-pull-requests-limit: 15  # Assimp has 15 dependencies

.github/workflows/ccpp.yml

@@ -6,49 +6,58 @@ on:
   pull_request:
     branches: [ master ]
 
+permissions:
+  contents: write # to fetch code (actions/checkout),and release
+
 jobs:
-  job:
-    name: ${{ matrix.os }}-${{ matrix.cxx }}-build-and-test
+  build:
+    name: ${{ matrix.name }}-build-and-test
     runs-on: ${{ matrix.os }}
     strategy:
       fail-fast: false
       matrix:
-        name: [ubuntu-gcc, macos-clang, windows-msvc, ubuntu-clang]
+        name: [ubuntu-latest-g++, macos-latest-clang++, windows-latest-cl.exe, ubuntu-latest-clang++]
         # For Windows msvc, for Linux and macOS let's use the clang compiler, use gcc for Linux.
         include:
-          - name: windows-msvc
+          - name: windows-latest-cl.exe
             os: windows-latest
             cxx: cl.exe
             cc: cl.exe
-          - name: ubuntu-clang
+          - name: ubuntu-latest-clang++
             os: ubuntu-latest
             cxx: clang++
             cc: clang
-          - name: macos-clang
+          - name: macos-latest-clang++
             os: macos-latest
             cxx: clang++
             cc: clang
-          - name: ubuntu-gcc
+          - name: ubuntu-latest-g++
             os: ubuntu-latest
             cxx: g++
             cc: gcc
 
     steps:
-    - uses: actions/checkout@v2
-    
+    - name: ccache
+      uses: hendrikmuhs/ccache-action@v1.2
+      
+    - uses: actions/checkout@v4
+      with:
+          submodules: true
+          
     - uses: lukka/get-cmake@latest
     
     - uses: ilammy/msvc-dev-cmd@v1
     
-    - uses: lukka/set-shell-env@v1
+    - name: Set Compiler Environment
+      uses: lukka/set-shell-env@v1
       with:
         CXX: ${{ matrix.cxx }}
         CC: ${{ matrix.cc }}
 
     - name: Cache DX SDK
       id: dxcache
-      if: matrix.name == 'windows-msvc'
-      uses: actions/cache@v2
+      if: contains(matrix.name, 'windows')
+      uses: actions/cache@v4
       with:
         path: '${{ github.workspace }}/DX_SDK'
         key: ${{ runner.os }}-DX_SDK
@@ -56,34 +65,128 @@ jobs:
           ${{ runner.os }}-DX_SDK
 
     - name: Download DXSetup
-      if: matrix.name == 'windows-msvc' && steps.dxcache.outputs.cache-hit != 'true'
+      if: contains(matrix.name, 'windows') && steps.dxcache.outputs.cache-hit != 'true'
       run: |
         curl -s -o DXSDK_Jun10.exe --location https://download.microsoft.com/download/A/E/7/AE743F1F-632B-4809-87A9-AA1BB3458E31/DXSDK_Jun10.exe
         cmd.exe /c start /wait .\DXSDK_Jun10.exe /U /O /F /S /P "${{ github.workspace }}\DX_SDK"
 
     - name: Set Windows specific CMake arguments
-      if: matrix.name == 'windows-msvc'
+      if: contains(matrix.name, 'windows')
       id: windows_extra_cmake_args
-      run: echo "::set-output name=args::'-DASSIMP_BUILD_ASSIMP_TOOLS=1 -DASSIMP_BUILD_ASSIMP_VIEW=1'"
+      run: echo ":set-output name=args::=-DASSIMP_BUILD_ASSIMP_TOOLS=1 -DASSIMP_BUILD_ASSIMP_VIEW=1" >> $GITHUB_OUTPUT
     
+    - name: Set Hunter specific CMake arguments
+      if: contains(matrix.name, 'hunter')
+      id: hunter_extra_cmake_args
+      run: echo "args=-DBUILD_SHARED_LIBS=OFF -DASSIMP_HUNTER_ENABLED=ON -DCMAKE_TOOLCHAIN_FILE=${{ github.workspace }}/cmake/polly/${{ matrix.toolchain }}.cmake" >> $GITHUB_OUTPUT
+
     - name: configure and build
-      uses: lukka/run-cmake@v2
+      uses: lukka/run-cmake@v3
       env:
         DXSDK_DIR: '${{ github.workspace }}/DX_SDK'
 
       with:
         cmakeListsOrSettingsJson: CMakeListsTxtAdvanced
         cmakeListsTxtPath: '${{ github.workspace }}/CMakeLists.txt'
-        cmakeAppendedArgs: '-GNinja -DCMAKE_BUILD_TYPE=Release ${{ steps.windows_extra_cmake_args.outputs.args }}'
-        buildWithCMakeArgs: '-- -v'
+        cmakeAppendedArgs: '-GNinja -DCMAKE_BUILD_TYPE=Release ${{ steps.windows_extra_cmake_args.outputs.args }} ${{ steps.hunter_extra_cmake_args.outputs.args }}'
+        buildWithCMakeArgs: '--parallel 24 -v'
         buildDirectory: '${{ github.workspace }}/build/'
         
+    - name: Exclude certain tests in Hunter specific builds
+      if: contains(matrix.name, 'hunter')
+      id: hunter_extra_test_args
+      run: echo "args=--gtest_filter=-utOpenGEXImportExport.Importissue1340_EmptyCameraObject:utColladaZaeImportExport.importBlenFromFileTest" >> $GITHUB_OUTPUT
+
     - name: test
-      run: cd build/bin && ./unit
+      run: cd build/bin && ./unit ${{ steps.hunter_extra_test_args.outputs.args }}
       shell: bash
 
-    - uses: actions/upload-artifact@v2
+    - uses: actions/upload-artifact@v4
       if: matrix.name == 'windows-msvc'
       with:
-        name: 'assimp-bins-${{ matrix.name }}-${{ github.sha }}'
-        path: build/bin
+        name: 'assimp-bins-${{ matrix.name }}'
+        path: build/bin/assimp*.exe
+        
+    - uses: marvinpinto/action-automatic-releases@latest
+      if: contains(matrix.name, 'windows-msvc-hunter')
+      with:
+        repo_token: "${{ secrets.GITHUB_TOKEN }}"
+        automatic_release_tag: "master"
+        prerelease: true
+        title: "AutoRelease"
+        files: |
+          build/bin/assimp*.exe
+
+  create-release:
+    needs: [build]
+    runs-on: ubuntu-latest
+    if: startsWith(github.ref, 'refs/tags/')
+    steps:
+      - id: create-release
+        uses: actions/create-release@v1
+        env:
+          GITHUB_TOKEN: '${{secrets.GITHUB_TOKEN}}'
+        with:
+          tag_name: '${{github.ref}}'
+          release_name: 'Release ${{github.ref}}'
+          draft: false
+          prerelease: true
+      - run: |
+          echo '${{steps.create-release.outputs.upload_url}}' > release_upload_url.txt
+      - uses: actions/upload-artifact@v4
+        with:
+          name: create-release
+          path: release_upload_url.txt
+
+  upload-release:
+    strategy:
+      matrix:
+        name: [ubuntu-latest-g++, macos-latest-clang++, windows-latest-cl.exe, ubuntu-latest-clang++, ubuntu-gcc-hunter, macos-clang-hunter, windows-msvc-hunter]
+        # For Windows msvc, for Linux and macOS let's use the clang compiler, use gcc for Linux.
+        include:
+          - name: windows-latest-cl.exe
+            os: windows-latest
+            cxx: cl.exe
+            cc: cl.exe
+          - name: ubuntu-latest-clang++
+            os: ubuntu-latest
+            cxx: clang++
+            cc: clang
+          - name: macos-latest-clang++
+            os: macos-latest
+            cxx: clang++
+            cc: clang
+          - name: ubuntu-latest-g++
+            os: ubuntu-latest
+            cxx: g++
+            cc: gcc
+          - name: ubuntu-gcc-hunter
+            os: ubuntu-latest
+            toolchain: ninja-gcc-cxx17-fpic
+          - name: macos-clang-hunter
+            os: macos-latest
+            toolchain: ninja-clang-cxx17-fpic
+          - name: windows-msvc-hunter
+            os: windows-latest
+            toolchain: ninja-vs-win64-cxx17
+            
+    needs: [create-release]
+    runs-on: ubuntu-latest
+    if: startsWith(github.ref, 'refs/tags/')
+    steps:
+      - uses: softprops/action-gh-release@v2
+        with:
+          name: create-release
+      - id: upload-url
+        run: |
+          echo "url=$(cat create-release/release_upload_url.txt)" >> $GITHUB_OUTPUT
+      - uses: actions/download-artifact@v4
+        with:
+          name: 'assimp-bins-${{ matrix.name }}-${{ github.sha }}'
+      - uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: '${{secrets.GITHUB_TOKEN}}'
+        with:
+          files: |
+            *.zip
+ 

.github/workflows/cifuzz.yml

@@ -0,0 +1,26 @@
+name: CIFuzz
+on: [pull_request]
+jobs:
+  Fuzzing:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Build Fuzzers
+      id: build
+      uses: google/oss-fuzz/infra/cifuzz/actions/build_fuzzers@master
+      with:
+        oss-fuzz-project-name: 'assimp'
+        dry-run: false
+        language: c++
+    - name: Run Fuzzers
+      uses: google/oss-fuzz/infra/cifuzz/actions/run_fuzzers@master
+      with:
+        oss-fuzz-project-name: 'assimp'
+        fuzz-seconds: 300
+        dry-run: false
+        language: c++
+    - name: Upload Crash
+      uses: actions/upload-artifact@v4
+      if: failure() && steps.build.outcome == 'success'
+      with:
+        name: artifacts
+        path: ./out/artifacts

.github/workflows/inno_setup

@@ -0,0 +1,51 @@
+name: Build Windows Installer
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+jobs:
+  build:
+    name: Build the Inno Setup Installer
+    runs-on: windows-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: lukka/get-cmake@latest
+      - uses: ilammy/msvc-dev-cmd@v1
+
+
+      - name: Cache DX SDK
+        id: dxcache
+        uses: actions/cache@v4
+        with:
+          path: '${{ github.workspace }}/DX_SDK'
+          key: ${{ runner.os }}-DX_SDK
+          restore-keys: |
+            ${{ runner.os }}-DX_SDK
+
+      - name: Download DXSetup
+        run: |
+          curl -s -o DXSDK_Jun10.exe --location https://download.microsoft.com/download/A/E/7/AE743F1F-632B-4809-87A9-AA1BB3458E31/DXSDK_Jun10.exe
+          cmd.exe /c start /wait .\DXSDK_Jun10.exe /U /O /F /S /P "${{ github.workspace }}\DX_SDK"
+
+      - name: Set Windows specific CMake arguments
+        id: windows_extra_cmake_args
+        run: echo "::set-output name=args::-DASSIMP_BUILD_ASSIMP_TOOLS=1 -DASSIMP_BUILD_ASSIMP_VIEW=1 -DASSIMP_BUILD_ZLIB=1"
+
+      - name: configure and build
+        uses: lukka/run-cmake@v3
+        env:
+          DXSDK_DIR: '${{ github.workspace }}/DX_SDK'
+
+        with:
+          cmakeListsOrSettingsJson: CMakeListsTxtAdvanced
+          cmakeListsTxtPath: '${{ github.workspace }}/CMakeLists.txt'
+          cmakeAppendedArgs: '-GNinja -DCMAKE_BUILD_TYPE=Release ${{ steps.windows_extra_cmake_args.outputs.args }} ${{ steps.hunter_extra_cmake_args.outputs.args }}'
+          buildWithCMakeArgs: '--parallel 24 -v'
+          buildDirectory: '${{ github.workspace }}/build/'
+
+      - name: Compile .ISS to .EXE Installer
+        uses: Minionguyjpro/Inno-Setup-Action@v1.2.2
+        with:
+          path: packaging/windows-innosetup/script_x64.iss
+          options: /O+

.github/workflows/sanitizer.yml

@@ -6,12 +6,15 @@ on:
   pull_request:
     branches: [ master ]
 
+permissions:
+  contents: read # to fetch code (actions/checkout)
+
 jobs:
   job1:
     name: adress-sanitizer
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
     - uses: lukka/get-cmake@latest    
     - uses: lukka/set-shell-env@v1
       with:
@@ -19,7 +22,7 @@ jobs:
         CC: clang
     
     - name: configure and build
-      uses: lukka/run-cmake@v2
+      uses: lukka/run-cmake@v3
       with:
         cmakeListsOrSettingsJson: CMakeListsTxtAdvanced
         cmakeListsTxtPath: '${{ github.workspace }}/CMakeLists.txt'
@@ -35,7 +38,7 @@ jobs:
     name: undefined-behavior-sanitizer
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
     - uses: lukka/get-cmake@latest    
     - uses: lukka/set-shell-env@v1
       with:
@@ -43,7 +46,7 @@ jobs:
         CC: clang
     
     - name: configure and build
-      uses: lukka/run-cmake@v2
+      uses: lukka/run-cmake@v3
       with:
         cmakeListsOrSettingsJson: CMakeListsTxtAdvanced
         cmakeListsTxtPath: '${{ github.workspace }}/CMakeLists.txt'
@@ -54,3 +57,13 @@ jobs:
     - name: test
       run: cd build/bin && ./unit
       shell: bash
+
+  job3:
+    name: printf-sanitizer
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+    
+    - name: run scan_printf script
+      run: ./scripts/scan_printf.sh
+      shell: bash

.gitignore

@@ -18,11 +18,14 @@ build
 *.VC.db-wal
 *.VC.opendb
 *.ipch
+.vs/
+out/
+CMakeSettings.json
 
 # Output
 bin/
 lib/
-
+x64/
 # QtCreator
 CMakeLists.txt.user
 
@@ -91,6 +94,7 @@ test/gtest/src/gtest-stamp/gtest-gitinfo.txt
 test/gtest/src/gtest-stamp/gtest-gitclone-lastrun.txt
 Assimp.opensdf
 contrib/zlib/CTestTestfile.cmake
+contrib/zlib/Debug/zlibstaticd.pdb
 ipch/assimp_viewer-44bbbcd1/assimp_viewerd-ccc45335.ipch
 bin64/assimp-vc140-mt.dll
 bin64/assimp-vc140-mtd.dll
@@ -113,3 +117,10 @@ tools/assimp_qt_viewer/moc_glview.cpp_parameters
 tools/assimp_qt_viewer/moc_mainwindow.cpp
 tools/assimp_qt_viewer/moc_mainwindow.cpp_parameters
 tools/assimp_qt_viewer/ui_mainwindow.h
+
+#Generated directory
+generated/*
+
+# 3rd party cloned repos/tarballs etc
+# tinyusdz repo, automatically cloned via CMake
+contrib/tinyusdz/autoclone

.travis.sh

@@ -1,67 +0,0 @@
-#---------------------------------------------------------------------------
-#Open Asset Import Library (assimp)
-#---------------------------------------------------------------------------
-# Copyright (c) 2006-2020, assimp team
-#
-# License see LICENSE file
-#
-function generate() {
-    OPTIONS="-DASSIMP_WERROR=ON"
-    OPTIONS="$OPTIONS -DASSIMP_NO_EXPORT=NO"
-    
-    if [ "$DISABLE_EXPORTERS" = "YES" ] ; then
-        OPTIONS="$OPTIONS -DASSIMP_NO_EXPORT=YES"
-    else
-        OPTIONS="$OPTIONS -DASSIMP_NO_EXPORT=NO"
-    fi
-
-    if [ "$SHARED_BUILD" = "ON" ] ; then
-        OPTIONS="$OPTIONS -DBUILD_SHARED_LIBS=ON"
-    else
-        OPTIONS="$OPTIONS -DBUILD_SHARED_LIBS=OFF"
-    fi
-
-    if [ "$ENABLE_COVERALLS" = "ON" ] ; then
-        OPTIONS="$OPTIONS -DASSIMP_COVERALLS=ON"
-    else
-        OPTIONS="$OPTIONS -DASSIMP_COVERALLS=OFF"
-    fi
-
-    if [ "$ASAN" = "ON" ] ; then
-        OPTIONS="$OPTIONS -DASSIMP_ASAN=ON"
-    else
-        OPTIONS="$OPTIONS -DASSIMP_ASAN=OFF"
-    fi
-
-    if [ "$UBSAN" = "ON" ] ; then
-        OPTIONS="$OPTIONS -DASSIMP_UBSAN=ON"
-    fi
-
-    cmake -G "Unix Makefiles" $OPTIONS
-}
-# build and run unittests, if not android
-if [ $ANDROID ]; then
-    ant -v -Dmy.dir=${TRAVIS_BUILD_DIR} -f ${TRAVIS_BUILD_DIR}/port/jassimp/build.xml ndk-jni
-fi
-if [ "$TRAVIS_OS_NAME" = "linux" ]; then
-  if [ $ANALYZE = "ON" ] ; then
-    if [ "$CC" = "clang" ]; then
-        scan-build cmake -G "Unix Makefiles" -DBUILD_SHARED_LIBS=OFF -DASSIMP_BUILD_TESTS=OFF
-        scan-build --status-bugs make -j2
-    else
-        cppcheck --version
-        generate \
-        && cppcheck --error-exitcode=1 -j2 -Iinclude -Icode code 2> cppcheck.txt
-        if [ -s cppcheck.txt ]; then
-            cat cppcheck.txt
-            exit 1
-        fi
-    fi
-  else
-    generate \
-    && make -j4 \
-    && sudo make install \
-    && sudo ldconfig \
-    && (cd test/unit; ../../bin/unit)
-  fi
-fi

.travis.yml

@@ -1,78 +0,0 @@
-sudo: required
-language: cpp
-
-cache: ccache
-
-before_install:
-  - if [ "$TRAVIS_OS_NAME" = "linux" ]; then sudo apt-get update -qq && sudo apt-get install cmake cppcheck && sudo apt-get install cmake python3 && sudo apt-get install -qq freeglut3-dev libxmu-dev libxi-dev ; echo -n | openssl s_client -connect scan.coverity.com:443 | sed -ne '/-BEGIN CERTIFICATE-/,/-END CERTIFICATE-/p' | sudo tee -a /etc/ssl/certs/ca- ; fi
-  - 'if [ "$TRAVIS_OS_NAME" = "osx" ];  then
-       if brew ls --versions cmake > /dev/null; then
-         echo cmake already installed.;
-       else
-         brew install cmake;
-       fi;
-       brew install python3;
-       brew install homebrew/x11/freeglut; 
-    fi'
-  - echo -e "#ifndef A_R_H_INC\n#define A_R_H_INC\n#define GitVersion ${TRAVIS_JOB_ID}\n#define GitBranch \"${TRAVIS_BRANCH}\"\n#endif // A_R_H_INC" > revision.h
-  # install latest LCOV (1.9 was failing)
-  - if [ "$TRAVIS_OS_NAME" = "linux" ]; then cd ${TRAVIS_BUILD_DIR} && wget http://ftp.de.debian.org/debian/pool/main/l/lcov/lcov_1.11.orig.tar.gz && tar xf lcov_1.11.orig.tar.gz && sudo make -C lcov-1.11/ install && gem install coveralls-lcov && lcov --version && g++ --version ; fi
-
-os:
-  - linux
-
-compiler:
-  - gcc
-  - clang
-
-env:
-  global:
-    - secure: "lZ7pHQvl5dpZWzBQAaIMf0wqrvtcZ4wiZKeIZjf83TEsflW8+z0uTpIuN30ZV6Glth/Sq1OhLnTP5+N57fZU/1ebA5twHdvP4bS5CIUUg71/CXQZNl36xeaqvxsG/xRrdpKOsPdjAOsQ9KPTQulsX43XDLS7CasMiLvYOpqKcPc="
-    - PV=r8e PLATF=linux-x86_64 NDK_HOME=${TRAVIS_BUILD_DIR}/android-ndk-${PV} PATH=${PATH}:${NDK_HOME}
-
-git:
-  depth: 1
-
-matrix:
-  include:
-    - os: linux
-      compiler: clang
-      env: ASAN=ON
-    - os: linux
-      compiler: clang
-      env: UBSAN=ON
-    - os: linux
-      compiler: clang
-      env: SHARED_BUILD=ON
-    - os: linux
-      compiler: gcc
-      env: ANALYZE=ON
-    - os: linux
-      compiler: gcc
-      env: ENABLE_COVERALLS=ON
-    - os: linux
-      compiler: gcc
-      env: SHARED_BUILD=ON
-
-install:
-  - if [ $ANDROID ]; then wget -c http://dl.google.com/android/ndk/android-ndk-${PV}-${PLATF}.tar.bz2 && tar xf android-ndk-${PV}-${PLATF}.tar.bz2 ; fi
-
-before_script:
-  cmake . -DASSIMP_ENABLE_BOOST_WORKAROUND=YES
-
-script:
-  - export COVERALLS_SERVICE_NAME=travis-ci
-  - export COVERALLS_REPO_TOKEN=abc12345
-  - . ./.travis.sh
- 
-after_success:
-  - if [ "$TRAVIS_OS_NAME" = "linux" ]; then cd ${TRAVIS_BUILD_DIR} && lcov --directory . --capture --output-file coverage.info && lcov --remove coverage.info '/usr/*' 'contrib/*' 'test/*' --output-file coverage.info && lcov --list coverage.info && coveralls-lcov --source-encoding=ISO-8859-1 --repo-token=${COVERALLS_TOKEN} coverage.info ; fi
-
-addons:
-  coverity_scan:
-    project:
-      name: "assimp/assimp"
-    notification_email: kim.kulling@googlemail.com
-    build_command_prepend: "cmake ./"
-    build_command: "make -j4"
-    branch_pattern: coverity_scan

AssimpBuildTreeSettings.cmake.in

@@ -1,3 +0,0 @@
-set(ASSIMP_INCLUDE_DIRS
-  "@PROJECT_SOURCE_DIR@"
-  "@PROJECT_BINARY_DIR@")

AssimpConfigVersion.cmake.in

@@ -1,11 +0,0 @@
-set(ASSIMP_PACKAGE_VERSION "@ASSIMP_SOVERSION@")
-
-# Check whether the requested PACKAGE_FIND_VERSION is compatible
-if("${ASSIMP_PACKAGE_VERSION}" VERSION_LESS "${ASSIMP_PACKAGE_FIND_VERSION}")
-  set(ASSIMP_PACKAGE_VERSION_COMPATIBLE FALSE)
-else()
-  set(ASSIMP_PACKAGE_VERSION_COMPATIBLE TRUE)
-  if ("${ASSIMP_PACKAGE_VERSION}" VERSION_EQUAL "${ASSIMP_PACKAGE_FIND_VERSION}")
-    set(ASSIMP_PACKAGE_VERSION_EXACT TRUE)
-  endif()
-endif()

BUILDBINARIES_EXAMPLE.bat

@@ -10,16 +10,15 @@
 :: Also see: https://github.com/assimp/assimp/pull/2646
 
 SET SOURCE_DIR=.
+SET GENERATOR=Visual Studio 16 2019
 
-:: For generators see "cmake --help"
-SET GENERATOR=Visual Studio 15 2017
-
-SET BINARIES_DIR="./BINARIES/Win32"
-cmake CMakeLists.txt -G "%GENERATOR%" -S %SOURCE_DIR% -B %BINARIES_DIR%
+SET BINARIES_DIR="./build/Win32"
+cmake . -G "%GENERATOR%" -A Win32 -S %SOURCE_DIR% -B %BINARIES_DIR%
+cmake --build %BINARIES_DIR% --config debug
 cmake --build %BINARIES_DIR% --config release
 
-SET BINARIES_DIR="./BINARIES/x64"
-cmake CMakeLists.txt -G "%GENERATOR% Win64" -S %SOURCE_DIR% -B %BINARIES_DIR%
+SET BINARIES_DIR="./build/x64"
+cmake . -G "%GENERATOR%" -A x64 -S %SOURCE_DIR% -B %BINARIES_DIR%
 cmake --build %BINARIES_DIR% --config debug
 cmake --build %BINARIES_DIR% --config release
 

Build.md

@@ -1,20 +1,33 @@
-# Build Instructions
+# Build / Install Instructions
 
-## Build on all platforms using vcpkg
+## Install on all platforms using vcpkg
 You can download and install assimp using the [vcpkg](https://github.com/Microsoft/vcpkg/) dependency manager:
 ```bash
     git clone https://github.com/Microsoft/vcpkg.git
     cd vcpkg
     ./bootstrap-vcpkg.sh
     ./vcpkg integrate install
-    vcpkg install assimp
+    ./vcpkg install assimp
 ```
 The assimp port in vcpkg is kept up to date by Microsoft team members and community contributors. If the version is out of date, please [create an issue or pull request](https://github.com/Microsoft/vcpkg) on the vcpkg repository.
 
+## Install on Ubuntu
+You can install the Asset-Importer-Lib via apt:
+```
+sudo apt-get update
+sudo apt-get install libassimp-dev
+```
+
+## Install pyassimp
+You need to have pip installed:
+```
+pip install pyassimp
+```
+
 ## Manual build instructions
 
 ### Install CMake
-Asset-Importer-Lib can be build for a lot of different platforms. We are using cmake to generate the build environment for these via cmake. So you have to make sure that you have a working cmake-installation on your system. You can download it at https://cmake.org/ or for linux install it via
+Asset-Importer-Lib can be built for a lot of different platforms. We are using cmake to generate the build environment for these via cmake. So you have to make sure that you have a working cmake-installation on your system. You can download it at https://cmake.org/ or for linux install it via
 ```bash
 sudo apt-get install cmake
 ```
@@ -24,15 +37,22 @@ Make sure you have a working git-installation. Open a command prompt and clone t
 ```bash
 git clone https://github.com/assimp/assimp.git
 ```
+### Build from source:
+```bash
+cd assimp
+cmake CMakeLists.txt 
+cmake --build .
+```
+Note that by default this builds a shared library into the `bin` directory. If you want to build it as a static library see the build options at the bottom of this file.
 
 ### Build instructions for Windows with Visual-Studio
 
-First you have to install Visual-Studio on your windows-system. You can get the Community-Version for free here: https://visualstudio.microsoft.com/de/downloads/
+First, you have to install Visual-Studio on your windows-system. You can get the Community-Version for free here: https://visualstudio.microsoft.com/de/downloads/
 To generate the build environment for your IDE open a command prompt, navigate to your repo and type:
 ```bash
 cmake CMakeLists.txt
 ```
-This will generate the project files for the visual studio. All dependencies used to build Asset-IMporter-Lib shall be part of the repo. If you want to use you own zlib.installation this is possible as well. Check the options for it.
+This will generate the project files for the visual studio. All dependencies used to build Asset-Importer-Lib shall be part of the repo. If you want to use you own zlib installation this is possible as well. Check the options for it.
 
 ### Build instructions for Windows with UWP
 See <https://stackoverflow.com/questions/40803170/cmake-uwp-using-cmake-to-build-universal-windows-app>
@@ -44,9 +64,9 @@ Open a terminal and got to your repository. You can generate the makefiles and b
 cmake CMakeLists.txt
 make -j4
 ```
-The option -j descripes the number of parallel processes for the build. In this case make will try to use 4 cores for the build.
+The option -j describes the number of parallel processes for the build. In this case make will try to use 4 cores for the build.
 
-If you want to use a IDE for linux you can try QTCreator for instance. 
+If you want to use an IDE for linux you can try QTCreator for instance. 
 
 ### Build instructions for MinGW
  Older versions of MinGW's compiler (e.g. 5.1.0) do not support the -mbig_obj flag 
@@ -66,23 +86,28 @@ Besides the toolchain, compilation should be the same as for Linux / Unix.
 
 ### CMake build options
 The cmake-build-environment provides options to configure the build. The following options can be used:
-- **BUILD_SHARED_LIBS ( default ON )**: Generation of shared libs ( dll for windows, so for Linux ). Set this to OFF to get a static lib.
-- **BUILD_FRAMEWORK ( default OFF, MacOnly)**: Build package as Mac OS X Framework bundle
-- **ASSIMP_DOUBLE_PRECISION( default OFF )**: All data will be stored as double values.
-- **ASSIMP_OPT_BUILD_PACKAGES ( default OFF)**: Set to ON to generate CPack configuration files and packaging targets
-- **ASSIMP_ANDROID_JNIIOSYSTEM ( default OFF )**: Android JNI IOSystem support is active
-- **ASSIMP_NO_EXPORT ( default OFF )**: Disable Assimp's export functionality
-- **ASSIMP_BUILD_ZLIB ( default OFF )**: Build your own zlib
-- **ASSIMP_BUILD_ASSIMP_TOOLS ( default ON )**: If the supplementary tools for Assimp are built in addition to the library.
-- **ASSIMP_BUILD_SAMPLES ( default OFF )**: If the official samples are built as well (needs Glut).
-- **ASSIMP_BUILD_TESTS ( default ON )**: If the test suite for Assimp is built in addition to the library.
-- **ASSIMP_COVERALLS ( default OFF )**: Enable this to measure test coverage.
-- **ASSIMP_ERROR_MAX( default OFF)**: Enable all warnings.
-- **ASSIMP_WERROR( default OFF )**: Treat warnings as errors.
-- **ASSIMP_ASAN ( default OFF )**: Enable AddressSanitizer.
-- **ASSIMP_UBSAN ( default OFF )**: Enable Undefined Behavior sanitizer.
-- **SYSTEM_IRRXML ( default OFF )**: Use system installed Irrlicht/IrrXML library.
-- **BUILD_DOCS ( default OFF )**: Build documentation using Doxygen.
-- **INJECT_DEBUG_POSTFIX( default ON )**: Inject debug postfix in .a/.so lib names
-- **IGNORE_GIT_HASH ( default OFF )**: Don't call git to get the hash.
-- **ASSIMP_INSTALL_PDB ( default ON )**: Install MSVC debug files.
+- **ASSIMP_HUNTER_ENABLED (default OFF)**: Enable Hunter package manager support.
+- **BUILD_SHARED_LIBS (default ON)**: Generation of shared libs (dll for windows, so for Linux). Set this to OFF to get a static lib.
+- **ASSIMP_BUILD_FRAMEWORK (default OFF, MacOnly)**: Build package as Mac OS X Framework bundle.
+- **ASSIMP_DOUBLE_PRECISION (default OFF)**: All data will be stored as double values.
+- **ASSIMP_OPT_BUILD_PACKAGES (default OFF)**: Set to ON to generate CPack configuration files and packaging targets.
+- **ASSIMP_ANDROID_JNIIOSYSTEM (default OFF)**: Android JNI IOSystem support is active.
+- **ASSIMP_NO_EXPORT (default OFF)**: Disable Assimp's export functionality.
+- **ASSIMP_BUILD_ZLIB (default OFF)**: Build our own zlib.
+- **ASSIMP_BUILD_ALL_EXPORTERS_BY_DEFAULT (default ON)**: Build Assimp with all exporters enabled.
+- **ASSIMP_BUILD_ALL_IMPORTERS_BY_DEFAULT (default ON)**: Build Assimp with all importers enabled.
+- **ASSIMP_BUILD_ASSIMP_TOOLS (default OFF)**: If the supplementary tools for Assimp are built in addition to the library.
+- **ASSIMP_BUILD_SAMPLES (default OFF)**: If the official samples are built as well (needs Glut).
+- **ASSIMP_BUILD_TESTS (default ON)**: If the test suite for Assimp is built in addition to the library.
+- **ASSIMP_COVERALLS (default OFF)**: Enable this to measure test coverage.
+- **ASSIMP_INSTALL (default ON)**: Install Assimp library. Disable this if you want to use Assimp as a submodule.
+- **ASSIMP_WARNINGS_AS_ERRORS (default ON)**: Treat all warnings as errors.
+- **ASSIMP_ASAN (default OFF)**: Enable AddressSanitizer.
+- **ASSIMP_UBSAN (default OFF)**: Enable Undefined Behavior sanitizer.
+- **ASSIMP_BUILD_DOCS (default OFF)**: Build documentation using Doxygen. OBSOLETE, see https://github.com/assimp/assimp-docs
+- **ASSIMP_INJECT_DEBUG_POSTFIX (default ON)**: Inject debug postfix in .a/.so/.lib/.dll lib names
+- **ASSIMP_IGNORE_GIT_HASH (default OFF)**: Don't call git to get the hash.
+- **ASSIMP_INSTALL_PDB (default ON)**: Install MSVC debug files.
+- **USE_STATIC_CRT (default OFF)**: Link against the static MSVC runtime libraries.
+- **ASSIMP_BUILD_DRACO (default OFF)**: Build Draco libraries. Primarily for glTF.
+- **ASSIMP_BUILD_ASSIMP_VIEW (default ON, if DirectX found, OFF otherwise)**: Build Assimp view tool (requires DirectX).

CMakeLists.txt

@@ -1,6 +1,6 @@
 # Open Asset Import Library (assimp)
 # ----------------------------------------------------------------------
-# Copyright (c) 2006-2020, assimp team
+# Copyright (c) 2006-2024, assimp team
 #
 # All rights reserved.
 #
@@ -34,25 +34,44 @@
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #----------------------------------------------------------------------
+SET(CMAKE_POLICY_DEFAULT_CMP0012 NEW)
 SET(CMAKE_POLICY_DEFAULT_CMP0074 NEW)
 SET(CMAKE_POLICY_DEFAULT_CMP0092 NEW)
 
-CMAKE_MINIMUM_REQUIRED( VERSION 3.0 )
+CMAKE_MINIMUM_REQUIRED( VERSION 3.22 )
 
+# Experimental USD importer: disabled, need to opt-in
+# Note: assimp github PR automatic checks will fail the PR due to compiler warnings in
+# the external, 3rd party tinyusdz code which isn't technically part of the PR since it's
+# auto-cloned during build; so MUST disable the feature or the PR will be rejected
+option(ASSIMP_BUILD_USD_IMPORTER "Enable USD file import" off)
+option(ASSIMP_BUILD_USD_VERBOSE_LOGS "Enable verbose USD import debug logging" off)
+option(ASSIMP_BUILD_USE_CCACHE "Use ccache to speed up compilation." on)
+
+if(ASSIMP_BUILD_USE_CCACHE)
+  find_program(CCACHE_PATH ccache)
+  if (CCACHE_PATH)
+    set_property(GLOBAL PROPERTY RULE_LAUNCH_COMPILE ${CCACHE_PATH})
+    set_property(GLOBAL PROPERTY RULE_LAUNCH_LINK ${CCACHE_PATH})
+  endif()
+endif()
+
+# Disabled importers: m3d for 5.1 or later
+ADD_DEFINITIONS( -DASSIMP_BUILD_NO_M3D_IMPORTER)
+ADD_DEFINITIONS( -DASSIMP_BUILD_NO_M3D_EXPORTER)
 # Toggles the use of the hunter package manager
 option(ASSIMP_HUNTER_ENABLED "Enable Hunter package manager support" OFF)
 
 IF(ASSIMP_HUNTER_ENABLED)
-  include("cmake/HunterGate.cmake")
+  include("cmake-modules/HunterGate.cmake")
   HunterGate(
-    URL "https://github.com/cpp-pm/hunter/archive/v0.23.261.tar.gz"
-    SHA1 "1540dad7b97c849784a09e8c452ba811c9f71ba2"
+    URL "https://github.com/cpp-pm/hunter/archive/v0.25.5.tar.gz"
+    SHA1 "a20151e4c0740ee7d0f9994476856d813cdead29"
   )
-
   add_definitions(-DASSIMP_USE_HUNTER)
 ENDIF()
 
-PROJECT( Assimp VERSION 5.0.1 )
+PROJECT(Assimp VERSION 5.4.3)
 
 # All supported options ###############################################
 
@@ -60,7 +79,6 @@ OPTION( BUILD_SHARED_LIBS
   "Build package with shared libraries."
   ON
 )
-
 OPTION( ASSIMP_BUILD_FRAMEWORK
   "Build package as Mac OS X Framework bundle."
   OFF
@@ -81,13 +99,9 @@ OPTION( ASSIMP_NO_EXPORT
   "Disable Assimp's export functionality."
   OFF
 )
-OPTION( ASSIMP_BUILD_ZLIB
-  "Build your own zlib"
-  OFF
-)
 OPTION( ASSIMP_BUILD_ASSIMP_TOOLS
   "If the supplementary tools for Assimp are built in addition to the library."
-  ON
+  OFF
 )
 OPTION ( ASSIMP_BUILD_SAMPLES
   "If the official samples are built as well (needs Glut)."
@@ -105,9 +119,9 @@ OPTION( ASSIMP_INSTALL
   "Disable this if you want to use assimp as a submodule."
   ON
 )
-OPTION ( ASSIMP_ERROR_MAX
-  "Enable all warnings."
-  OFF
+OPTION ( ASSIMP_WARNINGS_AS_ERRORS
+  "Treat all warnings as errors."
+  ON
 )
 OPTION ( ASSIMP_ASAN
   "Enable AddressSanitizer."
@@ -117,10 +131,6 @@ OPTION ( ASSIMP_UBSAN
   "Enable Undefined Behavior sanitizer."
   OFF
 )
-OPTION ( ASSIMP_SYSTEM_IRRXML
-  "Use system installed Irrlicht/IrrXML library."
-  OFF
-)
 OPTION ( ASSIMP_BUILD_DOCS
   "Build documentation using Doxygen."
   OFF
@@ -135,10 +145,46 @@ OPTION ( ASSIMP_IGNORE_GIT_HASH
    OFF
 )
 
-IF ( WIN32 )
-    OPTION ( ASSIMP_BUILD_ASSIMP_VIEW 
-      "If the Assimp view tool is built. (requires DirectX)" 
-      OFF )
+IF (WIN32)
+  OPTION( ASSIMP_BUILD_ZLIB
+    "Build your zlib"
+    ON
+  )
+ELSE()
+  OPTION( ASSIMP_BUILD_ZLIB
+    "Build your zlib"
+    OFF
+  )
+ENDIF()
+
+IF (WIN32)
+  # Use a subset of Windows.h
+  ADD_DEFINITIONS( -DWIN32_LEAN_AND_MEAN )
+
+  IF(MSVC)
+    OPTION( ASSIMP_INSTALL_PDB
+      "Create MSVC debug symbol files and add to Install target."
+      ON )
+    IF(NOT (MSVC_VERSION LESS 1900))
+      # Multibyte character set has been deprecated since at least MSVC2015 (possibly earlier)
+      ADD_DEFINITIONS( -DUNICODE -D_UNICODE )
+    ENDIF()
+
+    # Link statically against c/c++ lib to avoid missing redistributable such as
+    # "VCRUNTIME140.dll not found. Try reinstalling the app.", but give users
+    # a choice to opt for the shared runtime if they want.
+    option(USE_STATIC_CRT "Link against the static runtime libraries." OFF)
+
+    # The CMAKE_CXX_FLAGS vars can be overridden by some Visual Studio generators, so we use an alternative
+    # global method here:
+    if (${USE_STATIC_CRT})
+      add_compile_options(
+          $<$<CONFIG:>:/MT>
+          $<$<CONFIG:Debug>:/MTd>
+          $<$<CONFIG:Release>:/MT>
+      )
+    endif()
+  ENDIF()
 ENDIF()
 
 IF (IOS AND NOT ASSIMP_HUNTER_ENABLED)
@@ -148,21 +194,6 @@ IF (IOS AND NOT ASSIMP_HUNTER_ENABLED)
   ADD_DEFINITIONS(-DENABLE_BITCODE)
 ENDIF ()
 
-# Use subset of Windows.h
-if (WIN32)
-  ADD_DEFINITIONS( -DWIN32_LEAN_AND_MEAN )
-endif()
-
-IF(MSVC)
-  OPTION( ASSIMP_INSTALL_PDB
-    "Install MSVC debug files."
-    ON
-  )
-  IF(NOT (MSVC_VERSION LESS 1900))
-    # Multibyte character set is deprecated since at least MSVC2015 (possibly earlier)
-    ADD_DEFINITIONS( -DUNICODE -D_UNICODE )
-  ENDIF()
-ENDIF()
 
 IF (ASSIMP_BUILD_FRAMEWORK)
   SET (BUILD_SHARED_LIBS ON)
@@ -172,6 +203,7 @@ ENDIF()
 IF(NOT BUILD_SHARED_LIBS)
   MESSAGE(STATUS "Shared libraries disabled")
   SET(LINK_SEARCH_START_STATIC TRUE)
+  SET(CMAKE_FIND_LIBRARY_SUFFIXES ${CMAKE_STATIC_LIBRARY_SUFFIX} ${CMAKE_FIND_LIBRARY_SUFFIXES})
 ELSE()
   MESSAGE(STATUS "Shared libraries enabled")
 ENDIF()
@@ -184,10 +216,9 @@ SET (ASSIMP_VERSION ${ASSIMP_VERSION_MAJOR}.${ASSIMP_VERSION_MINOR}.${ASSIMP_VER
 SET (ASSIMP_SOVERSION 5)
 
 SET( ASSIMP_PACKAGE_VERSION "0" CACHE STRING "the package-specific version used for uploading the sources" )
-if(NOT ASSIMP_HUNTER_ENABLED)
-  # Enable C++11 support globally
-  set_property( GLOBAL PROPERTY CXX_STANDARD 11 )
-endif()
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+set(CMAKE_C_STANDARD 99)
 
 IF(NOT ASSIMP_IGNORE_GIT_HASH)
   # Get the current working branch
@@ -214,19 +245,9 @@ IF(NOT GIT_COMMIT_HASH)
 ENDIF()
 
 IF(ASSIMP_DOUBLE_PRECISION)
-    ADD_DEFINITIONS(-DASSIMP_DOUBLE_PRECISION)
+  ADD_DEFINITIONS(-DASSIMP_DOUBLE_PRECISION)
 ENDIF()
 
-CONFIGURE_FILE(
-  ${CMAKE_CURRENT_LIST_DIR}/revision.h.in
-  ${CMAKE_CURRENT_BINARY_DIR}/revision.h
-)
-
-CONFIGURE_FILE(
-  ${CMAKE_CURRENT_LIST_DIR}/include/assimp/config.h.in
-  ${CMAKE_CURRENT_BINARY_DIR}/include/assimp/config.h
-)
-
 INCLUDE_DIRECTORIES( BEFORE
   ./
   code/
@@ -244,108 +265,146 @@ SET(ASSIMP_LIBRARY_SUFFIX "" CACHE STRING "Suffix to append to library names")
 IF( UNIX )
   # Use GNUInstallDirs for Unix predefined directories
   INCLUDE(GNUInstallDirs)
+  # Ensure that we do not run into issues like http://www.tcm.phy.cam.ac.uk/sw/inodes64.html on 32 bit Linux
+  IF(NOT ${OPERATING_SYSTEM} MATCHES "Android")
+    IF ( CMAKE_SIZEOF_VOID_P EQUAL 4) # only necessary for 32-bit Linux
+      ADD_DEFINITIONS(-D_FILE_OFFSET_BITS=64 )
+    ENDIF()
+  ENDIF()
 ENDIF()
 
 # Grouped compiler settings ########################################
-IF ((CMAKE_C_COMPILER_ID MATCHES "GNU") AND NOT CMAKE_COMPILER_IS_MINGW)
+IF ((CMAKE_C_COMPILER_ID MATCHES "GNU") AND NOT MINGW AND NOT HAIKU)
   IF(NOT ASSIMP_HUNTER_ENABLED)
-    SET(CMAKE_CXX_STANDARD 11)
     SET(CMAKE_POSITION_INDEPENDENT_CODE ON)
   ENDIF()
+
+  IF(CMAKE_CXX_COMPILER_VERSION GREATER_EQUAL 13)
+    MESSAGE(STATUS "GCC13 detected disabling \"-Wdangling-reference\" in Cpp files as it appears to be a false positive")
+    ADD_COMPILE_OPTIONS("$<$<COMPILE_LANGUAGE:CXX>:-Wno-dangling-reference>")
+  ENDIF()
   # hide all not-exported symbols
-  SET(CMAKE_CXX_FLAGS "-fvisibility=hidden -fno-strict-aliasing -Wall ${CMAKE_CXX_FLAGS}")
-  SET(CMAKE_C_FLAGS "-fno-strict-aliasing ${CMAKE_C_FLAGS}")
-  SET(LIBSTDC++_LIBRARIES -lstdc++)
+  IF(CMAKE_HOST_SYSTEM_PROCESSOR MATCHES "mips64" )
+    SET(CMAKE_CXX_FLAGS "-mxgot -fvisibility=hidden -fno-strict-aliasing -Wall ${CMAKE_CXX_FLAGS}")
+    SET(CMAKE_C_FLAGS "-fno-strict-aliasing ${CMAKE_C_FLAGS}")
+    SET(LIBSTDC++_LIBRARIES -lstdc++)
+  ELSE()
+    SET(CMAKE_CXX_FLAGS "-fvisibility=hidden -fno-strict-aliasing -Wall ${CMAKE_CXX_FLAGS}")
+    SET(CMAKE_C_FLAGS "-fno-strict-aliasing ${CMAKE_C_FLAGS}")
+    SET(LIBSTDC++_LIBRARIES -lstdc++)
+  ENDIF()
 ELSEIF(MSVC)
   # enable multi-core compilation with MSVC
-  IF( "${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang" ) # clang-cl
-    ADD_COMPILE_OPTIONS(/bigobj /W4 /WX )
+  IF(CMAKE_CXX_COMPILER_ID MATCHES "Clang" ) # clang-cl
+    ADD_COMPILE_OPTIONS(/bigobj)
   ELSE() # msvc
-    ADD_COMPILE_OPTIONS(/MP /bigobj /W4 /WX)
+    ADD_COMPILE_OPTIONS(/MP /bigobj)
   ENDIF()
+
   # disable "elements of array '' will be default initialized" warning on MSVC2013
   IF(MSVC12)
     ADD_COMPILE_OPTIONS(/wd4351)
   ENDIF()
+  # supress warning for double to float conversion if Double precision is activated
+  ADD_COMPILE_OPTIONS(/wd4244)
   SET(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} /D_DEBUG /Zi /Od")
-ELSEIF ( "${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang" )
+  # Allow user to disable PDBs
+  if(ASSIMP_INSTALL_PDB)
+    SET(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} /Zi")
+    SET(CMAKE_SHARED_LINKER_FLAGS_RELEASE "${CMAKE_SHARED_LINKER_FLAGS_RELEASE} /DEBUG:FULL /PDBALTPATH:%_PDB% /OPT:REF /OPT:ICF")
+  elseif((GENERATOR_IS_MULTI_CONFIG) OR (CMAKE_BUILD_TYPE MATCHES Release))
+    message("-- MSVC PDB generation disabled. Release binary will not be debuggable.")
+  endif()
+  # Source code is encoded in UTF-8
+  ADD_COMPILE_OPTIONS(/source-charset:utf-8)
+ELSEIF (CMAKE_CXX_COMPILER_ID MATCHES "Clang" )
   IF(NOT ASSIMP_HUNTER_ENABLED)
-    SET(CMAKE_CXX_STANDARD 11)
     SET(CMAKE_POSITION_INDEPENDENT_CODE ON)
   ENDIF()
   SET(CMAKE_CXX_FLAGS "-fvisibility=hidden -fno-strict-aliasing -Wall -Wno-long-long ${CMAKE_CXX_FLAGS}" )
   SET(CMAKE_C_FLAGS "-fno-strict-aliasing ${CMAKE_C_FLAGS}")
-ELSEIF( CMAKE_COMPILER_IS_MINGW )
+ELSEIF( MINGW )
   IF (CMAKE_CXX_COMPILER_VERSION VERSION_LESS 7.0)
     message(FATAL_ERROR "MinGW is too old to be supported. Please update MinGW and try again.")
   ELSEIF(CMAKE_CXX_COMPILER_VERSION VERSION_LESS 7.3)
     message(WARNING "MinGW is old, if you experience errors, update MinGW.")
   ENDIF()
   IF(NOT ASSIMP_HUNTER_ENABLED)
-    SET(CMAKE_CXX_FLAGS "-std=c++11 ${CMAKE_CXX_FLAGS}")
+    SET(CMAKE_CXX_FLAGS "-std=gnu++17 ${CMAKE_CXX_FLAGS}")
     SET(CMAKE_C_FLAGS "-fPIC ${CMAKE_C_FLAGS}")
   ENDIF()
-  SET(CMAKE_CXX_FLAGS "-fvisibility=hidden -fno-strict-aliasing -Wall -Wno-long-long -Wa,-mbig-obj -O3 ${CMAKE_CXX_FLAGS}")
-  SET(CMAKE_C_FLAGS "-fno-strict-aliasing ${CMAKE_C_FLAGS}")
-  ADD_DEFINITIONS( -U__STRICT_ANSI__ )
+    IF (CMAKE_BUILD_TYPE STREQUAL "Debug")
+      SET(CMAKE_CXX_FLAGS "-fvisibility=hidden -fno-strict-aliasing -Wno-dangling-reference -Wall -Wno-long-long -Wa,-mbig-obj -g ${CMAKE_CXX_FLAGS}")
+    ELSE()
+      SET(CMAKE_CXX_FLAGS "-fvisibility=hidden -fno-strict-aliasing -Wno-dangling-reference -Wall -Wno-long-long -Wa,-mbig-obj -O3 ${CMAKE_CXX_FLAGS}")
+    ENDIF()
+    SET(CMAKE_C_FLAGS "-fno-strict-aliasing ${CMAKE_C_FLAGS}")
 ENDIF()
 
 IF ( IOS AND NOT ASSIMP_HUNTER_ENABLED)
   IF (CMAKE_BUILD_TYPE STREQUAL "Debug")
-    SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fembed-bitcode -Og")
+    SET(CMAKE_C_FLAGS   "${CMAKE_C_FLAGS} -fembed-bitcode -Og")
     SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fembed-bitcode -Og")
   ELSE()
-    SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fembed-bitcode -O3")
+    SET(CMAKE_C_FLAGS   "${CMAKE_C_FLAGS} -fembed-bitcode -O3")
     SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fembed-bitcode -O3")
-    # Experimental for pdb generation
   ENDIF()
 ENDIF()
 
 IF (ASSIMP_COVERALLS)
   MESSAGE(STATUS "Coveralls enabled")
+
   INCLUDE(Coveralls)
   SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -g -O0 -fprofile-arcs -ftest-coverage")
   SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -g -O0 -fprofile-arcs -ftest-coverage")
 ENDIF()
 
-IF (ASSIMP_ERROR_MAX)
-  MESSAGE(STATUS "Turning on all warnings")
-  IF (MSVC)
-    ADD_COMPILE_OPTIONS(/W4) # NB: there is a /Wall option, pedantic mode
-  ELSE()
-    SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall")
-    SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall")
-  ENDIF()
-ENDIF()
-
 IF (ASSIMP_ASAN)
   MESSAGE(STATUS "AddressSanitizer enabled")
+
   SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=address")
-  SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fsanitize=address")
+  SET(CMAKE_C_FLAGS   "${CMAKE_C_FLAGS} -fsanitize=address")
 ENDIF()
 
 IF (ASSIMP_UBSAN)
   MESSAGE(STATUS "Undefined Behavior sanitizer enabled")
-  SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=undefined -fno-sanitize-recover=all")
-  SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fsanitize=undefined -fno-sanitize-recover=all")
+
+  SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=undefined,shift,shift-exponent,integer-divide-by-zero,unreachable,vla-bound,null,return,signed-integer-overflow,bounds,float-divide-by-zero,float-cast-overflow,nonnull-attribute,returns-nonnull-attribute,bool,enum,vptr,pointer-overflow,builtin -fno-sanitize-recover=all")
+  SET(CMAKE_C_FLAGS   "${CMAKE_C_FLAGS} -fsanitize=undefined,shift,shift-exponent,integer-divide-by-zero,unreachable,vla-bound,null,return,signed-integer-overflow,bounds,float-divide-by-zero,float-cast-overflow,nonnull-attribute,returns-nonnull-attribute,bool,enum,vptr,pointer-overflow,builtin -fno-sanitize-recover=all")
 ENDIF()
 
 INCLUDE (FindPkgMacros)
 INCLUDE (PrecompiledHeader)
 
-# If this is an in-source build (CMAKE_SOURCE_DIR == CMAKE_BINARY_DIR),
-# write the library/executable files to the respective directories in the
-# source tree. During an out-of-source build, however, do not litter this
-# directory, since that is probably what the user wanted to avoid.
-IF ( CMAKE_SOURCE_DIR STREQUAL CMAKE_BINARY_DIR )
-  SET( CMAKE_LIBRARY_OUTPUT_DIRECTORY "${CMAKE_HOME_DIRECTORY}/bin" )
-  SET( CMAKE_ARCHIVE_OUTPUT_DIRECTORY "${CMAKE_HOME_DIRECTORY}/lib" )
-  SET( CMAKE_RUNTIME_OUTPUT_DIRECTORY "${CMAKE_HOME_DIRECTORY}/bin" )
+# Set Assimp project output directory variables.
+# Will respect top-level CMAKE_*_OUTPUT_DIRECTORY variables if any are set.
+IF(NOT DEFINED CMAKE_RUNTIME_OUTPUT_DIRECTORY)
+  SET(ASSIMP_RUNTIME_OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/bin" CACHE STRING "Path for runtime output files")
 ELSE()
-  SET(CMAKE_ARCHIVE_OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/lib")
-  SET(CMAKE_LIBRARY_OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/bin")
-  SET(CMAKE_RUNTIME_OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/bin")
-ENDIF ()
+  SET(ASSIMP_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_RUNTIME_OUTPUT_DIRECTORY} CACHE STRING "Path for runtime output files")
+ENDIF()
+
+IF(NOT DEFINED CMAKE_LIBRARY_OUTPUT_DIRECTORY)
+  SET(ASSIMP_LIBRARY_OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/bin" CACHE STRING "Path for library output files")
+ELSE()
+  SET(ASSIMP_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_LIBRARY_OUTPUT_DIRECTORY} CACHE STRING "Path for runtime output files")
+ENDIF()
+
+IF(NOT DEFINED CMAKE_ARCHIVE_OUTPUT_DIRECTORY)
+  SET(ASSIMP_ARCHIVE_OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/lib" CACHE STRING "Path for library output files")
+ELSE()
+  SET(ASSIMP_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_ARCHIVE_OUTPUT_DIRECTORY} CACHE STRING "Path for runtime output files")
+ENDIF()
+
+# Macro used to set the output directories of a target to the
+# respective Assimp output directories.
+MACRO(TARGET_USE_COMMON_OUTPUT_DIRECTORY target)
+  set_target_properties(${target} PROPERTIES
+      RUNTIME_OUTPUT_DIRECTORY ${ASSIMP_RUNTIME_OUTPUT_DIRECTORY}
+      LIBRARY_OUTPUT_DIRECTORY ${ASSIMP_LIBRARY_OUTPUT_DIRECTORY}
+      ARCHIVE_OUTPUT_DIRECTORY ${ASSIMP_ARCHIVE_OUTPUT_DIRECTORY}
+  )
+ENDMACRO()
 
 get_cmake_property(is_multi_config GENERATOR_IS_MULTI_CONFIG)
 
@@ -356,19 +415,12 @@ ELSE()
 ENDIF()
 
 # Only generate this target if no higher-level project already has
-IF (NOT TARGET uninstall)
+IF (NOT TARGET uninstall AND ASSIMP_INSTALL)
   # add make uninstall capability
   CONFIGURE_FILE("${CMAKE_CURRENT_SOURCE_DIR}/cmake-modules/cmake_uninstall.cmake.in" "${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake" IMMEDIATE @ONLY)
   ADD_CUSTOM_TARGET(uninstall "${CMAKE_COMMAND}" -P "${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake")
 ENDIF()
 
-# cmake configuration files
-if(${BUILD_SHARED_LIBS})
-  set(BUILD_LIB_TYPE SHARED)
-else()
-  set(BUILD_LIB_TYPE STATIC)
-endif()
-
 IF( UNIX )
   # Use GNUInstallDirs for Unix predefined directories
   INCLUDE(GNUInstallDirs)
@@ -390,76 +442,58 @@ ELSE()
   SET(CMAKE_INSTALL_FULL_BINDIR ${CMAKE_INSTALL_PREFIX}/${ASSIMP_BIN_INSTALL_DIR})
 ENDIF()
 
+set(GENERATED_DIR "${CMAKE_CURRENT_BINARY_DIR}/generated")
+
 IF(ASSIMP_HUNTER_ENABLED)
   set(CONFIG_INSTALL_DIR "lib/cmake/${PROJECT_NAME}")
-  set(INCLUDE_INSTALL_DIR "include")
-
-  set(GENERATED_DIR "${CMAKE_CURRENT_BINARY_DIR}/generated")
-
-  # Configuration
+  set(CMAKE_CONFIG_TEMPLATE_FILE "cmake-modules/assimp-hunter-config.cmake.in")
+  set(NAMESPACE "${PROJECT_NAME}::")
+  set(TARGETS_EXPORT_NAME "${PROJECT_NAME}Targets")
   set(VERSION_CONFIG "${GENERATED_DIR}/${PROJECT_NAME}ConfigVersion.cmake")
   set(PROJECT_CONFIG "${GENERATED_DIR}/${PROJECT_NAME}Config.cmake")
-  set(TARGETS_EXPORT_NAME "${PROJECT_NAME}Targets")
-  set(NAMESPACE "${PROJECT_NAME}::")
+ELSE()
+  set(CONFIG_INSTALL_DIR "${ASSIMP_LIB_INSTALL_DIR}/cmake/assimp-${ASSIMP_VERSION_MAJOR}.${ASSIMP_VERSION_MINOR}")
+  set(CMAKE_CONFIG_TEMPLATE_FILE "cmake-modules/assimp-plain-config.cmake.in")
+  string(TOLOWER ${PROJECT_NAME} PROJECT_NAME_LOWERCASE)
+  set(NAMESPACE "${PROJECT_NAME_LOWERCASE}::")
+  set(TARGETS_EXPORT_NAME "${PROJECT_NAME_LOWERCASE}Targets")
+  set(VERSION_CONFIG "${GENERATED_DIR}/${PROJECT_NAME_LOWERCASE}ConfigVersion.cmake")
+  set(PROJECT_CONFIG "${GENERATED_DIR}/${PROJECT_NAME_LOWERCASE}Config.cmake")
+ENDIF()
 
-  # Include module with fuction 'write_basic_package_version_file'
-  include(CMakePackageConfigHelpers)
+set(INCLUDE_INSTALL_DIR "include")
 
-  # Note: PROJECT_VERSION is used as a VERSION
-  write_basic_package_version_file("${VERSION_CONFIG}" COMPATIBILITY SameMajorVersion)
+# Include module with fuction 'write_basic_package_version_file'
+include(CMakePackageConfigHelpers)
 
-  # Use variables:
-  #   * TARGETS_EXPORT_NAME
-  #   * PROJECT_NAME
-  configure_package_config_file(
-      "cmake/assimp-hunter-config.cmake.in"
-      "${PROJECT_CONFIG}"
-      INSTALL_DESTINATION "${CONFIG_INSTALL_DIR}"
-  )
+# Note: PROJECT_VERSION is used as a VERSION
+write_basic_package_version_file("${VERSION_CONFIG}" COMPATIBILITY SameMajorVersion)
 
+configure_package_config_file(
+    ${CMAKE_CONFIG_TEMPLATE_FILE}
+    "${PROJECT_CONFIG}"
+    INSTALL_DESTINATION "${CONFIG_INSTALL_DIR}"
+)
+
+if(ASSIMP_INSTALL)
   install(
       FILES "${PROJECT_CONFIG}" "${VERSION_CONFIG}"
       DESTINATION "${CONFIG_INSTALL_DIR}"
+      COMPONENT ${LIBASSIMP-DEV_COMPONENT}
   )
 
   install(
       EXPORT "${TARGETS_EXPORT_NAME}"
       NAMESPACE "${NAMESPACE}"
       DESTINATION "${CONFIG_INSTALL_DIR}"
+      COMPONENT ${LIBASSIMP-DEV_COMPONENT}
   )
-ELSE()
-  CONFIGURE_FILE("${CMAKE_CURRENT_SOURCE_DIR}/assimp-config.cmake.in"         "${CMAKE_CURRENT_BINARY_DIR}/assimp-config.cmake" @ONLY IMMEDIATE)
-  CONFIGURE_FILE("${CMAKE_CURRENT_SOURCE_DIR}/assimpTargets.cmake.in"         "${CMAKE_CURRENT_BINARY_DIR}/assimpTargets.cmake" @ONLY IMMEDIATE)
-  IF (is_multi_config)
-    CONFIGURE_FILE("${CMAKE_CURRENT_SOURCE_DIR}/assimpTargets-debug.cmake.in"   "${CMAKE_CURRENT_BINARY_DIR}/assimpTargets-debug.cmake" @ONLY IMMEDIATE)
-    CONFIGURE_FILE("${CMAKE_CURRENT_SOURCE_DIR}/assimpTargets-release.cmake.in" "${CMAKE_CURRENT_BINARY_DIR}/assimpTargets-release.cmake" @ONLY IMMEDIATE)
-    SET(PACKAGE_TARGETS_FILE "${CMAKE_CURRENT_BINARY_DIR}/assimpTargets-debug.cmake" "${CMAKE_CURRENT_BINARY_DIR}/assimpTargets-release.cmake")
-  ELSEIF (CMAKE_BUILD_TYPE STREQUAL Debug)
-    CONFIGURE_FILE("${CMAKE_CURRENT_SOURCE_DIR}/assimpTargets-debug.cmake.in"   "${CMAKE_CURRENT_BINARY_DIR}/assimpTargets-debug.cmake" @ONLY IMMEDIATE)
-    SET(PACKAGE_TARGETS_FILE "${CMAKE_CURRENT_BINARY_DIR}/assimpTargets-debug.cmake")
-  ELSE()
-    CONFIGURE_FILE("${CMAKE_CURRENT_SOURCE_DIR}/assimpTargets-release.cmake.in" "${CMAKE_CURRENT_BINARY_DIR}/assimpTargets-release.cmake" @ONLY IMMEDIATE)
-    SET(PACKAGE_TARGETS_FILE "${CMAKE_CURRENT_BINARY_DIR}/assimpTargets-release.cmake")
-  ENDIF()
-  CONFIGURE_FILE("${CMAKE_CURRENT_SOURCE_DIR}/assimp-config-version.cmake.in" "${CMAKE_CURRENT_BINARY_DIR}/assimp-config-version.cmake" @ONLY IMMEDIATE)
-  #we should generated these scripts after CMake VERSION 3.0.2 using export(EXPORT ...) and write_basic_package_version_file(...)
-  INSTALL(FILES
-    "${CMAKE_CURRENT_BINARY_DIR}/assimp-config.cmake"
-    "${CMAKE_CURRENT_BINARY_DIR}/assimp-config-version.cmake"
-    "${CMAKE_CURRENT_BINARY_DIR}/assimpTargets.cmake"
-    ${PACKAGE_TARGETS_FILE}
-    DESTINATION "${ASSIMP_LIB_INSTALL_DIR}/cmake/assimp-${ASSIMP_VERSION_MAJOR}.${ASSIMP_VERSION_MINOR}" COMPONENT ${LIBASSIMP-DEV_COMPONENT})
-ENDIF()
+endif()
 
 IF( ASSIMP_BUILD_DOCS )
   ADD_SUBDIRECTORY(doc)
 ENDIF()
 
-# Look for system installed irrXML
-IF ( ASSIMP_SYSTEM_IRRXML )
-  FIND_PACKAGE( IrrXML REQUIRED )
-ENDIF()
-
 # Search for external dependencies, and build them from source if not found
 # Search for zlib
 IF(ASSIMP_HUNTER_ENABLED)
@@ -471,11 +505,21 @@ IF(ASSIMP_HUNTER_ENABLED)
   set(ZLIB_LIBRARIES ZLIB::zlib)
   set(ASSIMP_BUILD_MINIZIP TRUE)
 ELSE()
+  # If the zlib is already found outside, add an export in case assimpTargets can't find it.
+  IF( ZLIB_FOUND AND ASSIMP_INSTALL)
+    INSTALL( TARGETS zlib zlibstatic
+        EXPORT "${TARGETS_EXPORT_NAME}")
+  ENDIF()
+
   IF ( NOT ASSIMP_BUILD_ZLIB )
     FIND_PACKAGE(ZLIB)
   ENDIF()
 
-  IF( NOT ZLIB_FOUND )
+  IF ( NOT ZLIB_FOUND AND NOT ASSIMP_BUILD_ZLIB )
+    message( FATAL_ERROR
+      "Build configured with -DASSIMP_BUILD_ZLIB=OFF but unable to find zlib"
+    )
+  ELSEIF( NOT ZLIB_FOUND )
     MESSAGE(STATUS "compiling zlib from sources")
     INCLUDE(CheckIncludeFile)
     INCLUDE(CheckTypeSize)
@@ -540,15 +584,19 @@ ENDIF()
 MARK_AS_ADVANCED ( ASSIMP_BUILD_ARCHITECTURE ASSIMP_BUILD_COMPILER )
 
 SET ( ASSIMP_BUILD_NONFREE_C4D_IMPORTER OFF CACHE BOOL
-  "Build the C4D importer, which relies on the non-free Melange SDK."
+  "Build the C4D importer, which relies on the non-free Cineware SDK."
 )
 
 IF (ASSIMP_BUILD_NONFREE_C4D_IMPORTER)
-  IF ( MSVC )
-    SET(C4D_INCLUDES "${CMAKE_CURRENT_SOURCE_DIR}/contrib/Melange/includes")
+  SET(C4D_INCLUDES "${CMAKE_CURRENT_SOURCE_DIR}/contrib/Cineware/includes")
 
+  IF (WIN32)
     # pick the correct prebuilt library
-    IF(MSVC15)
+    IF(MSVC143)
+      SET(C4D_LIB_POSTFIX "_2022")
+    ELSEIF(MSV142)
+      SET(C4D_LIB_POSTFIX "_2019")
+    ELSEIF(MSVC15)
       SET(C4D_LIB_POSTFIX "_2017")
     ELSEIF(MSVC14)
       SET(C4D_LIB_POSTFIX "_2015")
@@ -560,50 +608,162 @@ IF (ASSIMP_BUILD_NONFREE_C4D_IMPORTER)
       SET(C4D_LIB_POSTFIX "_2010")
     ELSE()
       MESSAGE( FATAL_ERROR
-        "C4D is currently only supported with MSVC 10, 11, 12, 14"
+        "C4D for Windows is currently only supported with MSVC 10, 11, 12, 14, 14.2, 14.3"
       )
     ENDIF()
 
-    SET(C4D_LIB_BASE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/contrib/Melange/libraries/win")
+    SET(C4D_LIB_BASE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/contrib/Cineware/libraries/win")
 
     SET(C4D_DEBUG_LIBRARIES
-      "${C4D_LIB_BASE_PATH}/melangelib${C4D_LIB_POSTFIX}/melangelib_debug.lib"
+      "${C4D_LIB_BASE_PATH}/cinewarelib${C4D_LIB_POSTFIX}/cinewarelib_debug.lib"
       "${C4D_LIB_BASE_PATH}/jpeglib${C4D_LIB_POSTFIX}/jpeglib_debug.lib"
     )
     SET(C4D_RELEASE_LIBRARIES
-      "${C4D_LIB_BASE_PATH}/melangelib${C4D_LIB_POSTFIX}/melangelib_release.lib"
+      "${C4D_LIB_BASE_PATH}/cinewarelib${C4D_LIB_POSTFIX}/cinewarelib_release.lib"
       "${C4D_LIB_BASE_PATH}/jpeglib${C4D_LIB_POSTFIX}/jpeglib_release.lib"
     )
 
-    # winsock and winmm are necessary dependencies of melange (this is undocumented, but true.)
+    # winsock and winmm are necessary (and undocumented) dependencies of Cineware SDK because
+    # it can be used to communicate with a running Cinema 4D instance
     SET(C4D_EXTRA_LIBRARIES WSock32.lib Winmm.lib)
+  ELSEIF (APPLE)
+    SET(C4D_LIB_BASE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/contrib/Cineware/libraries/osx")
+
+    SET(C4D_DEBUG_LIBRARIES
+      "${C4D_LIB_BASE_PATH}/debug/libcinewarelib.a"
+      "${C4D_LIB_BASE_PATH}/debug/libjpeglib.a"
+    )
+    SET(C4D_RELEASE_LIBRARIES
+      "${C4D_LIB_BASE_PATH}/release/libcinewarelib.a"
+      "${C4D_LIB_BASE_PATH}/release/libjpeglib.a"
+    )
   ELSE ()
     MESSAGE( FATAL_ERROR
-      "C4D is currently only available on Windows with melange SDK installed in contrib/Melange"
+      "C4D is currently only available on Windows and macOS with Cineware SDK installed in contrib/Cineware"
     )
   ENDIF ()
 ELSE ()
   ADD_DEFINITIONS( -DASSIMP_BUILD_NO_C4D_IMPORTER )
 ENDIF ()
 
-IF(NOT ASSIMP_HUNTER_ENABLED)
-  ADD_SUBDIRECTORY(contrib)
+if(ASSIMP_BUILD_DRACO_STATIC)
+  set(ASSIMP_BUILD_DRACO ON)
+endif()
+
+# Draco requires cmake 3.12
+IF (DEFINED CMAKE_VERSION AND "${CMAKE_VERSION}" VERSION_LESS "3.12")
+  message(NOTICE "draco requires cmake 3.12 or newer, cmake is ${CMAKE_VERSION} . Draco is disabled")
+  SET ( ASSIMP_BUILD_DRACO OFF CACHE BOOL "Disabled: Draco requires newer cmake" FORCE )
+ELSE()
+  OPTION ( ASSIMP_BUILD_DRACO "If the Draco libraries are to be built. Primarily for glTF" OFF )
+  IF ( ASSIMP_BUILD_DRACO )
+    # Primarily for glTF v2
+    # Enable Draco glTF feature set
+    set(DRACO_GLTF_BITSTREAM ON CACHE BOOL "" FORCE)
+    # Disable unnecessary or omitted components
+    set(DRACO_JS_GLUE OFF CACHE BOOL "" FORCE)
+    set(DRACO_WASM OFF CACHE BOOL "" FORCE)
+    set(DRACO_MAYA_PLUGIN OFF CACHE BOOL "" FORCE)
+    set(DRACO_UNITY_PLUGIN OFF CACHE BOOL "" FORCE)
+    set(DRACO_TESTS OFF CACHE BOOL "" FORCE)
+
+    IF(ASSIMP_HUNTER_ENABLED)
+      hunter_add_package(draco)
+      find_package(draco CONFIG REQUIRED)
+      set(draco_LIBRARIES draco::draco)
+    ELSE()
+      # Draco 1.4.1 has many warnings and will not build with /WX or -Werror
+      # See https://github.com/google/draco/issues/672
+      # and https://github.com/google/draco/issues/673
+      IF(MSVC)
+        set(DRACO_CXX_FLAGS "/W0")
+      ELSE()
+        list(APPEND DRACO_CXX_FLAGS
+          "-Wno-bool-compare"
+          "-Wno-comment"
+          "-Wno-maybe-uninitialized"
+          "-Wno-sign-compare"
+          "-Wno-unused-local-typedefs"
+        )
+
+        if(NOT ASSIMP_BUILD_DRACO_STATIC)
+          # Draco 1.4.1 does not explicitly export any symbols under GCC/clang
+          list(APPEND DRACO_CXX_FLAGS
+            "-fvisibility=default"
+          )
+        endif()
+      ENDIF()
+
+      # Don't build or install all of Draco by default
+      ADD_SUBDIRECTORY( "contrib/draco" EXCLUDE_FROM_ALL )
+
+      if(ASSIMP_BUILD_DRACO_STATIC)
+        set_property(DIRECTORY "contrib/draco" PROPERTY BUILD_SHARED_LIBS OFF)
+      endif()
+
+      if(MSVC OR WIN32)
+        set(draco_LIBRARIES "draco")
+      else()
+        if(ASSIMP_BUILD_DRACO_STATIC)
+          set(draco_LIBRARIES "draco_static")
+        else()
+          set(draco_LIBRARIES "draco_shared")
+        endif()
+      endif()
+
+      # Don't build the draco command-line tools by default
+      set_target_properties(draco_encoder draco_decoder PROPERTIES
+        EXCLUDE_FROM_ALL TRUE
+        EXCLUDE_FROM_DEFAULT_BUILD TRUE
+      )
+
+      # Do build the draco shared library
+      set_target_properties(${draco_LIBRARIES} PROPERTIES
+        EXCLUDE_FROM_ALL FALSE
+        EXCLUDE_FROM_DEFAULT_BUILD FALSE
+      )
+
+      TARGET_USE_COMMON_OUTPUT_DIRECTORY(${draco_LIBRARIES})
+      TARGET_USE_COMMON_OUTPUT_DIRECTORY(draco_encoder)
+      TARGET_USE_COMMON_OUTPUT_DIRECTORY(draco_decoder)
+
+      set(draco_INCLUDE_DIRS "${CMAKE_CURRENT_SOURCE_DIR}/contrib/draco/src")
+
+      # This is probably wrong
+      if (ASSIMP_INSTALL)
+        INSTALL( TARGETS ${draco_LIBRARIES}
+          EXPORT "${TARGETS_EXPORT_NAME}"
+          LIBRARY DESTINATION ${ASSIMP_LIB_INSTALL_DIR}
+          ARCHIVE DESTINATION ${ASSIMP_LIB_INSTALL_DIR}
+          RUNTIME DESTINATION ${ASSIMP_BIN_INSTALL_DIR}
+          FRAMEWORK DESTINATION ${ASSIMP_LIB_INSTALL_DIR}
+          COMPONENT ${LIBASSIMP_COMPONENT}
+          INCLUDES DESTINATION include
+        )
+      endif()
+    ENDIF()
+  ENDIF()
 ENDIF()
 
+# Main assimp code
 ADD_SUBDIRECTORY( code/ )
+
 IF ( ASSIMP_BUILD_ASSIMP_TOOLS )
   # The viewer for windows only
-  IF ( WIN32 )
-    OPTION ( ASSIMP_BUILD_ASSIMP_VIEW "If the Assimp view tool is built. (requires DirectX)" OFF )
+  IF (WIN32)
+    FIND_PACKAGE(DirectX)
+    OPTION ( ASSIMP_BUILD_ASSIMP_VIEW "If the Assimp view tool is built. (requires DirectX)" ${DirectX_FOUND} )
     IF ( ASSIMP_BUILD_ASSIMP_VIEW )
       ADD_SUBDIRECTORY( tools/assimp_view/ )
     ENDIF ()
+  ELSE()
+    MESSAGE("Building Assimp Viewer only supported on Windows.")
   ENDIF ()
   # The command line tool
   ADD_SUBDIRECTORY( tools/assimp_cmd/ )
 ENDIF ()
 
-IF ( ASSIMP_BUILD_SAMPLES)
+IF ( ASSIMP_BUILD_SAMPLES )
   SET( SAMPLES_DIR ${CMAKE_CURRENT_SOURCE_DIR}/samples )
   SET( SAMPLES_SHARED_CODE_DIR ${SAMPLES_DIR}/SharedCode )
   IF ( WIN32 )
@@ -617,12 +777,22 @@ IF ( ASSIMP_BUILD_TESTS )
   ADD_SUBDIRECTORY( test/ )
 ENDIF ()
 
-# Generate a pkg-config .pc for the Assimp library.
+# Generate a pkg-config .pc, revision.h, and config.h for the Assimp library.
 CONFIGURE_FILE( "${PROJECT_SOURCE_DIR}/assimp.pc.in" "${PROJECT_BINARY_DIR}/assimp.pc" @ONLY )
 IF ( ASSIMP_INSTALL )
   INSTALL( FILES "${PROJECT_BINARY_DIR}/assimp.pc" DESTINATION ${ASSIMP_LIB_INSTALL_DIR}/pkgconfig/ COMPONENT ${LIBASSIMP-DEV_COMPONENT})
 ENDIF()
 
+CONFIGURE_FILE(
+  ${CMAKE_CURRENT_LIST_DIR}/include/assimp/revision.h.in
+  ${CMAKE_CURRENT_BINARY_DIR}/include/assimp/revision.h
+)
+
+CONFIGURE_FILE(
+  ${CMAKE_CURRENT_LIST_DIR}/include/assimp/config.h.in
+  ${CMAKE_CURRENT_BINARY_DIR}/include/assimp/config.h
+)
+
 IF ( ASSIMP_INSTALL )
   IF(CMAKE_CPACK_COMMAND AND UNIX AND ASSIMP_OPT_BUILD_PACKAGES)
     # Packing information
@@ -656,7 +826,7 @@ IF ( ASSIMP_INSTALL )
     SET(CPACK_DEBIAN_PACKAGE_SECTION  "libs" )
     SET(CPACK_DEBIAN_PACKAGE_DEPENDS  "${CPACK_COMPONENTS_ALL}")
     SET(CPACK_DEBIAN_PACKAGE_SUGGESTS)
-    SET(cPACK_DEBIAN_PACKAGE_NAME     "assimp")
+    SET(CPACK_DEBIAN_PACKAGE_NAME     "assimp")
     SET(CPACK_DEBIAN_PACKAGE_REMOVE_SOURCE_FILES contrib/gtest contrib/zlib workspaces test doc obj samples packaging)
     SET(CPACK_DEBIAN_PACKAGE_SOURCE_COPY svn export --force)
     SET(CPACK_DEBIAN_CHANGELOG)
@@ -684,7 +854,8 @@ if(WIN32)
   ENDIF()
 
   IF(MSVC_TOOLSET_VERSION)
-    set(MSVC_PREFIX "vc${MSVC_TOOLSET_VERSION}")
+    SET(MSVC_PREFIX "vc${MSVC_TOOLSET_VERSION}")
+    SET(ASSIMP_MSVC_VERSION ${MSVC_PREFIX})
   ELSE()
     IF(MSVC12)
       SET(ASSIMP_MSVC_VERSION "vc120")
@@ -692,6 +863,10 @@ if(WIN32)
       SET(ASSIMP_MSVC_VERSION "vc140")
     ELSEIF(MSVC15)
       SET(ASSIMP_MSVC_VERSION "vc141")
+    ELSEIF(MSV142)
+      SET(ASSIMP_MSVC_VERSION "vc142")
+    ELSEIF(MSVC143)
+      SET(ASSIMP_MSVC_VERSION "vc143")
     ENDIF()
   ENDIF()
 

CODE_OF_CONDUCT.md

@@ -0,0 +1,128 @@
+# Contributor Covenant Code of Conduct
+
+## Our Pledge
+
+We as members, contributors, and leaders pledge to make participation in our
+community a harassment-free experience for everyone, regardless of age, body
+size, visible or invisible disability, ethnicity, sex characteristics, gender
+identity and expression, level of experience, education, socio-economic status,
+nationality, personal appearance, race, religion, or sexual identity
+and orientation.
+
+We pledge to act and interact in ways that contribute to an open, welcoming,
+diverse, inclusive, and healthy community.
+
+## Our Standards
+
+Examples of behavior that contributes to a positive environment for our
+community include:
+
+* Demonstrating empathy and kindness toward other people
+* Being respectful of differing opinions, viewpoints, and experiences
+* Giving and gracefully accepting constructive feedback
+* Accepting responsibility and apologizing to those affected by our mistakes,
+  and learning from the experience
+* Focusing on what is best not just for us as individuals, but for the
+  overall community
+
+Examples of unacceptable behavior include:
+
+* The use of sexualized language or imagery, and sexual attention or
+  advances of any kind
+* Trolling, insulting or derogatory comments, and personal or political attacks
+* Public or private harassment
+* Publishing others' private information, such as a physical or email
+  address, without their explicit permission
+* Other conduct which could reasonably be considered inappropriate in a
+  professional setting
+
+## Enforcement Responsibilities
+
+Community leaders are responsible for clarifying and enforcing our standards of
+acceptable behavior and will take appropriate and fair corrective action in
+response to any behavior that they deem inappropriate, threatening, offensive,
+or harmful.
+
+Community leaders have the right and responsibility to remove, edit, or reject
+comments, commits, code, wiki edits, issues, and other contributions that are
+not aligned to this Code of Conduct, and will communicate reasons for moderation
+decisions when appropriate.
+
+## Scope
+
+This Code of Conduct applies within all community spaces, and also applies when
+an individual is officially representing the community in public spaces.
+Examples of representing our community include using an official e-mail address,
+posting via an official social media account, or acting as an appointed
+representative at an online or offline event.
+
+## Enforcement
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be
+reported to the community leaders responsible for enforcement at
+.
+All complaints will be reviewed and investigated promptly and fairly.
+
+All community leaders are obligated to respect the privacy and security of the
+reporter of any incident.
+
+## Enforcement Guidelines
+
+Community leaders will follow these Community Impact Guidelines in determining
+the consequences for any action they deem in violation of this Code of Conduct:
+
+### 1. Correction
+
+**Community Impact**: Use of inappropriate language or other behavior deemed
+unprofessional or unwelcome in the community.
+
+**Consequence**: A private, written warning from community leaders, providing
+clarity around the nature of the violation and an explanation of why the
+behavior was inappropriate. A public apology may be requested.
+
+### 2. Warning
+
+**Community Impact**: A violation through a single incident or series
+of actions.
+
+**Consequence**: A warning with consequences for continued behavior. No
+interaction with the people involved, including unsolicited interaction with
+those enforcing the Code of Conduct, for a specified period of time. This
+includes avoiding interactions in community spaces as well as external channels
+like social media. Violating these terms may lead to a temporary or
+permanent ban.
+
+### 3. Temporary Ban
+
+**Community Impact**: A serious violation of community standards, including
+sustained inappropriate behavior.
+
+**Consequence**: A temporary ban from any sort of interaction or public
+communication with the community for a specified period of time. No public or
+private interaction with the people involved, including unsolicited interaction
+with those enforcing the Code of Conduct, is allowed during this period.
+Violating these terms may lead to a permanent ban.
+
+### 4. Permanent Ban
+
+**Community Impact**: Demonstrating a pattern of violation of community
+standards, including sustained inappropriate behavior,  harassment of an
+individual, or aggression toward or disparagement of classes of individuals.
+
+**Consequence**: A permanent ban from any sort of public interaction within
+the community.
+
+## Attribution
+
+This Code of Conduct is adapted from the [Contributor Covenant][homepage],
+version 2.0, available at
+https://www.contributor-covenant.org/version/2/0/code_of_conduct.html.
+
+Community Impact Guidelines were inspired by [Mozilla's code of conduct
+enforcement ladder](https://github.com/mozilla/diversity).
+
+[homepage]: https://www.contributor-covenant.org
+
+For answers to common questions about this code of conduct, see the FAQ at
+https://www.contributor-covenant.org/faq. Translations are available at
+https://www.contributor-covenant.org/translations.

Dockerfile

@@ -0,0 +1,22 @@
+FROM ubuntu:22.04
+
+RUN apt-get update && apt-get install --no-install-recommends -y ninja-build \
+    git cmake build-essential software-properties-common
+
+RUN add-apt-repository ppa:ubuntu-toolchain-r/test && apt-get update 
+
+WORKDIR /opt
+RUN apt install zlib1g-dev
+
+# Build Assimp
+RUN git clone https://github.com/assimp/assimp.git /opt/assimp
+
+WORKDIR /opt/assimp
+
+RUN git checkout master \
+    && mkdir build && cd build && \
+    cmake -G 'Ninja' \
+    -DCMAKE_BUILD_TYPE=Release \
+    -DASSIMP_BUILD_ASSIMP_TOOLS=ON \
+    .. && \
+    ninja -j4 && ninja install

INSTALL

@@ -8,43 +8,10 @@ Getting the documentation
 ------------------------------
 
 A regularly-updated copy is available at 
-http://assimp.sourceforge.net/lib_html/index.html
-
-A CHM file is included in the SVN repos: ./doc/AssimpDoc_Html/AssimpDoc.chm.
-To build the doxygen documentation on your own, follow these steps:
-
-a) download & install latest doxygen 
-b) make sure doxygen is in the executable search path
-c) navigate to ./doc
-d) and run 'doxygen'
-
-Open the generated HTML (AssimpDoc_Html/index.html) in the browser of your choice.
-Windows only: To generate the CHM doc, install 'Microsoft HTML Workshop'
-and configure the path to it in the DOXYFILE first. 
+https://assimp-docs.readthedocs.io/en/latest/
 
 ------------------------------
 Building Assimp 
 ------------------------------
 
-More detailed build instructions can be found in the documentation,
-this section is just for the inpatient among you.
-
-CMake is the preferred build system for Assimp. The minimum required version 
-is 2.6. If you don't have it yet, downloads for CMake can be found on
-http://www.cmake.org/. 
-
-For Unix:
-
-1. mkdir build && cd build
-2. cmake .. -G 'Unix Makefiles'
-3. make -j4
-
-For Windows:
-1. Open a command prompt
-2. mkdir build
-3. cd build
-4. cmake ..
-5. cmake --build .
-
-For iOS:
-Just check the following project, which deploys a compiler toolchain for different iOS-versions: https://github.com/assimp/assimp/tree/master/port/iOS
+Just check the build-instructions which you can find here: https://github.com/assimp/assimp/blob/master/Build.md

LICENSE

@@ -1,6 +1,6 @@
 Open Asset Import Library (assimp)
 
-Copyright (c) 2006-2020, assimp team
+Copyright (c) 2006-2021, assimp team
 All rights reserved.
 
 Redistribution and use of this software in source and binary forms,

README

@@ -1 +0,0 @@
-See Readme.md

Readme.md

@@ -1,83 +1,82 @@
 Open Asset Import Library (assimp)
 ==================================
-A library to import and export various 3d-model-formats including scene-post-processing to generate missing render data.
+
+Open Asset Import Library is a library to load various 3d file formats into a shared, in-memory format. It supports more than __40 file formats__ for import and a growing selection of file formats for export.
+
 ### Current project status ###
 [![Financial Contributors on Open Collective](https://opencollective.com/assimp/all/badge.svg?label=financial+contributors)](https://opencollective.com/assimp) 
 ![C/C++ CI](https://github.com/assimp/assimp/workflows/C/C++%20CI/badge.svg)
-<a href="https://scan.coverity.com/projects/5607">
-  <img alt="Coverity Scan Build Status"
-       src="https://scan.coverity.com/projects/5607/badge.svg"/>
-</a>
-[![Coverage Status](https://coveralls.io/repos/github/assimp/assimp/badge.svg?branch=master)](https://coveralls.io/github/assimp/assimp?branch=master)
+[![Codacy Badge](https://app.codacy.com/project/badge/Grade/9973693b7bdd4543b07084d5d9cf4745)](https://www.codacy.com/gh/assimp/assimp/dashboard?utm_source=github.com&amp;utm_medium=referral&amp;utm_content=assimp/assimp&amp;utm_campaign=Badge_Grade)
 [![Join the chat at https://gitter.im/assimp/assimp](https://badges.gitter.im/assimp/assimp.svg)](https://gitter.im/assimp/assimp?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
 [![Average time to resolve an issue](http://isitmaintained.com/badge/resolution/assimp/assimp.svg)](http://isitmaintained.com/project/assimp/assimp "Average time to resolve an issue")
-[![Codacy Badge](https://api.codacy.com/project/badge/Grade/5be56faac64f46fc941ac890fb4febef)](https://www.codacy.com/app/kimkulling/assimp?utm_source=github.com&amp;utm_medium=referral&amp;utm_content=assimp/assimp&amp;utm_campaign=Badge_Grade)
-[![Total alerts](https://img.shields.io/lgtm/alerts/g/assimp/assimp.svg?logo=lgtm&logoWidth=18)](https://lgtm.com/projects/g/assimp/assimp/alerts/)
+[![Percentage of issues still open](http://isitmaintained.com/badge/open/assimp/assimp.svg)](http://isitmaintained.com/project/assimp/assimp "Percentage of issues still open")
 <br>
 
 APIs are provided for C and C++. There are various bindings to other languages (C#, Java, Python, Delphi, D). Assimp also runs on Android and iOS.
+Additionally, assimp features various __mesh post-processing tools__: normals and tangent space generation, triangulation, vertex cache locality optimization, removal of degenerate primitives and duplicate vertices, sorting by primitive type, merging of redundant materials and many more.
 
-[Check the latest doc](https://assimp-docs.readthedocs.io/en/latest/).
+### Documentation ###
+Read [our latest documentation](https://assimp-docs.readthedocs.io/en/latest/).
 
-Additionally, assimp features various __mesh post processing tools__: normals and tangent space generation, triangulation, vertex cache locality optimization, removal of degenerate primitives and duplicate vertices, sorting by primitive type, merging of redundant materials and many more.
+### Pre-built binaries ###
+Download binaries from [our Itchi Projectspace](https://kimkulling.itch.io/the-asset-importer-lib).
 
-This is the development repo containing the latest features and bugfixes. For productive use though, we recommend one of the stable releases available from [Github Assimp Releases](https://github.com/assimp/assimp/releases).
+### Test data ###
+Clone [our model database](https://github.com/assimp/assimp-mdb).
 
-Please check our Wiki as well: https://github.com/assimp/assimp/wiki
-
-If you want to check our Model-Database, use the following repo: https://github.com/assimp/assimp-mdb
+### Communities ###
+- Ask questions at [the Assimp Discussion Board](https://github.com/assimp/assimp/discussions).
+- Find us on [https://discord.gg/s9KJfaem](https://discord.gg/kKazXMXDy2)
+- Ask [the Assimp community on Reddit](https://www.reddit.com/r/Assimp/).
+- Ask on [StackOverflow with the assimp-tag](http://stackoverflow.com/questions/tagged/assimp?sort=newest). 
+- Nothing has worked? File a question or an issue-report at [The Assimp-Issue Tracker](https://github.com/assimp/assimp/issues)
 
 #### Supported file formats ####
-You can find the complete list of supported file-formats [here](https://github.com/assimp/assimp/blob/master/doc/Fileformats.md)
+See [the complete list of supported formats](https://github.com/assimp/assimp/blob/master/doc/Fileformats.md).
 
 ### Building ###
-Take a look into the https://github.com/assimp/assimp/blob/master/Build.md file. We are available in vcpkg, and our build system is CMake; if you used CMake before there is a good chance you know what to do.
+Start by reading [our build instructions](https://github.com/assimp/assimp/blob/master/Build.md). We are available in vcpkg, and our build system is CMake; if you used CMake before there is a good chance you know what to do.
 
 ### Ports ###
 * [Android](port/AndroidJNI/README.md)
 * [Python](port/PyAssimp/README.md)
-* [.NET](https://github.com/assimp/assimp-net)
+* [.NET](https://bitbucket.org/Starnick/assimpnet/src/master/)
 * [Pascal](port/AssimpPascal/Readme.md)
 * [Javascript (Alpha)](https://github.com/makc/assimp2json)
-* [Unity 3d Plugin](https://www.assetstore.unity3d.com/en/#!/content/91777)
+* [Javascript/Node.js Interface](https://github.com/kovacsv/assimpjs)
+* [Unity 3d Plugin](https://ricardoreis.net/trilib-2/)
+* [Unreal Engine Plugin](https://github.com/irajsb/UE4_Assimp/)
 * [JVM](https://github.com/kotlin-graphics/assimp) Full jvm port (current [status](https://github.com/kotlin-graphics/assimp/wiki/Status))
 * [HAXE-Port](https://github.com/longde123/assimp-haxe) The Assimp-HAXE-port.
+* [Rust](https://github.com/jkvargas/russimp)
 
 ### Other tools ###
 [open3mod](https://github.com/acgessler/open3mod) is a powerful 3D model viewer based on Assimp's import and export abilities.
+[Assimp-Viewer](https://github.com/assimp/assimp_view) is an experimental implementation for an Asset-Viewer based on ImGUI and Assimp (experimental).
 
 #### Repository structure ####
-Open Asset Import Library is implemented in C++. The directory structure looks like:
+Open Asset Import Library is implemented in C++. The directory structure looks like this:
 
 	/code		Source code
 	/contrib	Third-party libraries
 	/doc		Documentation (doxysource and pre-compiled docs)
+	/fuzz           Contains the test code for the Google Fuzzer project
 	/include	Public header C and C++ header files
-	/scripts 	Scripts used to generate the loading code for some formats
+	/scripts 	Scripts are used to generate the loading code for some formats
 	/port		Ports to other languages and scripts to maintain those.
 	/test		Unit- and regression tests, test suite of models
 	/tools		Tools (old assimp viewer, command line `assimp`)
-	/samples	A small number of samples to illustrate possible
-                        use cases for Assimp
+	/samples	A small number of samples to illustrate possible use cases for Assimp
 
 The source code is organized in the following way:
 
-	code/Common		The base implementation for importers and the infrastructure
-	code/PostProcessing	The post-processing steps
-	code/<FormatName>	Implementation for import and export for the format
-
-### Where to get help ###
-For more information, visit [our website](http://assimp.org/). Or check out the `./doc`- folder, which contains the official documentation in HTML format.
-(CHMs for Windows are included in some release packages and should be located right here in the root folder).
-
-If the docs don't solve your problem, ask on [StackOverflow](http://stackoverflow.com/questions/tagged/assimp?sort=newest). If you think you found a bug, please open an issue on Github.
-
-For development discussions, there is also a (very low-volume) mailing list, _assimp-discussions_
-  [(subscribe here)]( https://lists.sourceforge.net/lists/listinfo/assimp-discussions)
-
-Open Asset Import Library is a library to load various 3d file formats into a shared, in-memory format. It supports more than __40 file formats__ for import and a growing selection of file formats for export.
-
-And we also have a Gitter-channel:Gitter [![Join the chat at https://gitter.im/assimp/assimp](https://badges.gitter.im/assimp/assimp.svg)](https://gitter.im/assimp/assimp?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)<br>
+	code/Common			The base implementation for importers and the infrastructure
+	code/CApi                       Special implementations which are only used for the C-API
+	code/Geometry                   A collection of geometry tools
+	code/Material                   The material system
+	code/PBR                        An exporter for physical-based models
+	code/PostProcessing		The post-processing steps
+	code/AssetLib/<FormatName>	Implementation for import and export of the format
 
 ### Contributing ###
 Contributions to assimp are highly appreciated. The easiest way to get involved is to submit
@@ -99,15 +98,6 @@ Become a financial contributor and help us sustain our community. [[Contribute](
 
 <a href="https://opencollective.com/assimp"><img src="https://opencollective.com/assimp/individuals.svg?width=890"></a>
 
-Monthly donations via Patreon:
-<br>[![Patreon](https://cloud.githubusercontent.com/assets/8225057/5990484/70413560-a9ab-11e4-8942-1a63607c0b00.png)](http://www.patreon.com/assimp)
-
-<br>
-
-One-off donations via PayPal:
-<br>[![PayPal](https://www.paypalobjects.com/en_US/i/btn/btn_donate_LG.gif)](https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=4JRJVPXC4QJM4)
-
-<br>
 
 #### Organizations
 
@@ -123,4 +113,4 @@ and don't sue us if our code doesn't work. Note that, unlike LGPLed code, you ma
 For the legal details, see the `LICENSE` file.
 
 ### Why this name ###
-Sorry, we're germans :-), no english native speakers ...
+Sorry, we're germans :-), no English native speakers ...

SECURITY.md

@@ -0,0 +1,16 @@
+# Security Policy
+
+## Supported Versions
+
+Use this section to tell people about which versions of your project are
+currently being supported with security updates.
+
+| Version | Supported          |
+| ------- | ------------------ |
+| 5.2.4   | :white_check_mark: |
+
+## Reporting a Vulnerability
+
+If you have found any security vulnerability you can contact us via 
+kim.kulling@googlemail.com
+

appveyor.yml

@@ -1,81 +0,0 @@
-# AppVeyor file
-# http://www.appveyor.com/docs/appveyor-yml
-
-# clone directory
-clone_folder: c:\projects\assimp
-
-clone_depth: 1
-
-# branches to build
-branches:
-  # whitelist
-  only:
-    - master
-
-matrix:
-  fast_finish: true
-    
-image:
-  - Visual Studio 2013
-  #- Visual Studio 2015
-  #- Visual Studio 2017
-  - Visual Studio 2019
-  #- MinGW  
-    
-platform:
-  - Win32
-  - x64
-  
-configuration: Release
-
-install:
-  - set PATH=C:\Ruby24-x64\bin;%PATH%
-  - set CMAKE_DEFINES -DASSIMP_WERROR=ON
-  - if [%COMPILER%]==[MinGW] set PATH=C:\MinGW\bin;%PATH%
-  - if "%APPVEYOR_BUILD_WORKER_IMAGE%"=="Visual Studio 2013" set CMAKE_GENERATOR_NAME=Visual Studio 12 2013
-  - if "%APPVEYOR_BUILD_WORKER_IMAGE%"=="Visual Studio 2015" set CMAKE_GENERATOR_NAME=Visual Studio 14 2015
-  - if "%APPVEYOR_BUILD_WORKER_IMAGE%"=="Visual Studio 2017" set CMAKE_GENERATOR_NAME=Visual Studio 15 2017
-  - if "%APPVEYOR_BUILD_WORKER_IMAGE%"=="Visual Studio 2019" set CMAKE_GENERATOR_NAME=Visual Studio 16 2019
-  - cmake %CMAKE_DEFINES% -G "%CMAKE_GENERATOR_NAME%" -A %platform% .
-  # Rename sh.exe as sh.exe in PATH interferes with MinGW  - if "%APPVEYOR_BUILD_WORKER_IMAGE%"=="Visual Studio 2015" set CMAKE_GENERATOR_NAME=Visual Studio 14 2015
-
-  - rename "C:\Program Files\Git\usr\bin\sh.exe" "sh2.exe"
-  - set PATH=%PATH%;"C:\\Program Files (x86)\\Inno Setup 5"
-  - ps: Invoke-WebRequest -Uri https://download.microsoft.com/download/5/7/b/57b2947c-7221-4f33-b35e-2fc78cb10df4/vc_redist.x64.exe -OutFile .\packaging\windows-innosetup\vc_redist.x64.exe
-  - ps: Invoke-WebRequest -Uri https://download.microsoft.com/download/1/d/8/1d8137db-b5bb-4925-8c5d-927424a2e4de/vc_redist.x86.exe -OutFile .\packaging\windows-innosetup\vc_redist.x86.exe
-  
-cache:
-  - code\assimp.dir\%CONFIGURATION%
-  - contrib\zlib\zlibstatic.dir\%CONFIGURATION%
-  - contrib\zlib\zlib.dir\%CONFIGURATION%
-  - tools\assimp_cmd\assimp_cmd.dir\%CONFIGURATION%
-  - tools\assimp_view\assimp_viewer.dir\%CONFIGURATION%
-  - test\unit.dir\%CONFIGURATION%
-  - bin\.mtime_cache
-  
-before_build:
-  - echo NUMBER_OF_PROCESSORS=%NUMBER_OF_PROCESSORS%
-  - ruby scripts\AppVeyor\mtime_cache -g scripts\AppVeyor\cacheglobs.txt -c bin\.mtime_cache\cache.json
-  
-build_script:
-  cmake --build . --config Release -- /maxcpucount:2
-  
-after_build:
-  - if "%APPVEYOR_BUILD_WORKER_IMAGE%"=="Visual Studio 2017" (
-        if "%platform%"=="x64" (
-            iscc packaging\windows-innosetup\script_x64.iss
-        ) else (
-            iscc packaging\windows-innosetup\script_x86.iss
-        )
-    )
-  - 7z a assimp.7z bin\%CONFIGURATION%\* lib\%CONFIGURATION%\*
-
-test_script:
-  - cmd: bin\%CONFIGURATION%\unit.exe --gtest_output=xml:testout.xml
-
-on_finish:
-  - ps: (new-object net.webclient).UploadFile("https://ci.appveyor.com/api/testresults/junit/$($env:APPVEYOR_JOB_ID)", (Resolve-Path .\testout.xml))
-  
-artifacts:
-  - path: assimp.7z
-    name: assimp_lib

assimp-config-version.cmake.in

@@ -1,48 +0,0 @@
-# Open Asset Import Library (assimp)
-# ----------------------------------------------------------------------
-# Copyright (c) 2006-2020, assimp team
-# All rights reserved.
-#
-# Redistribution and use of this software in source and binary forms,
-# with or without modification, are permitted provided that the
-# following conditions are met:
-#
-# * Redistributions of source code must retain the above
-#   copyright notice, this list of conditions and the
-#   following disclaimer.
-#
-# * Redistributions in binary form must reproduce the above
-#   copyright notice, this list of conditions and the
-#   following disclaimer in the documentation and/or other
-#   materials provided with the distribution.
-#
-# * Neither the name of the assimp team, nor the names of its
-#   contributors may be used to endorse or promote products
-#   derived from this software without specific prior
-#   written permission of the assimp team.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-#----------------------------------------------------------------------
-set( PACKAGE_VERSION "@ASSIMP_VERSION@" )
-if( "${PACKAGE_FIND_VERSION}" VERSION_EQUAL "@ASSIMP_VERSION@")
-  set(PACKAGE_VERSION_EXACT 1)
-endif()
-if( "${PACKAGE_FIND_VERSION_MAJOR}.${PACKAGE_FIND_VERSION_MINOR}" EQUAL "@ASSIMP_VERSION@" )
-  set(PACKAGE_VERSION_COMPATIBLE 1)
-elseif( "${PACKAGE_FIND_VERSION_MAJOR}" EQUAL "@ASSIMP_VERSION_MAJOR@" )
-  # for now backward compatible if minor version is less
-  if( ${PACKAGE_FIND_VERSION_MINOR}  LESS @ASSIMP_VERSION_MINOR@ )
-    set(PACKAGE_VERSION_COMPATIBLE 1)
-  endif()
-endif()
-set( ASSIMP_STATIC_LIB "@ASSIMP_BUILD_STATIC_LIB@")

assimp-config.cmake.in

@@ -1 +0,0 @@
-include(${CMAKE_CURRENT_LIST_DIR}/assimpTargets.cmake)

assimpTargets-debug.cmake.in

@@ -1,126 +0,0 @@
-#----------------------------------------------------------------
-# Generated CMake target import file for configuration "Debug".
-#----------------------------------------------------------------
-
-# Commands may need to know the format version.
-set(CMAKE_IMPORT_FILE_VERSION 1)
-
-set(ASSIMP_BUILD_SHARED_LIBS @BUILD_SHARED_LIBS@)
-
-get_property(LIB64 GLOBAL PROPERTY FIND_LIBRARY_USE_LIB64_PATHS)
-
-if(MSVC)
-  if(MSVC_TOOLSET_VERSION)
-    set(MSVC_PREFIX "vc${MSVC_TOOLSET_VERSION}")
-  else()
-    if( MSVC70 OR MSVC71 )
-      set(MSVC_PREFIX "vc70")
-    elseif( MSVC80 )
-      set(MSVC_PREFIX "vc80")
-    elseif( MSVC90 )
-      set(MSVC_PREFIX "vc90")
-    elseif( MSVC10 )
-      set(MSVC_PREFIX "vc100")
-    elseif( MSVC11 )
-      set(MSVC_PREFIX "vc110")
-    elseif( MSVC12 )
-      set(MSVC_PREFIX "vc120")
-    elseif( MSVC_VERSION LESS 1910)
-      set(MSVC_PREFIX "vc140")
-    elseif( MSVC_VERSION LESS 1920)
-      set(MSVC_PREFIX "vc141")
-    elseif( MSVC_VERSION LESS 1930)
-      set(MSVC_PREFIX "vc142")
-    else()
-      set(MSVC_PREFIX "vc150")
-    endif()
-  endif()
-  set(ASSIMP_LIBRARY_SUFFIX "@ASSIMP_LIBRARY_SUFFIX@-${MSVC_PREFIX}-mt" CACHE STRING "the suffix for the assimp windows library" )
-
-  if(ASSIMP_BUILD_SHARED_LIBS)
-    set(sharedLibraryName "assimp${ASSIMP_LIBRARY_SUFFIX}@CMAKE_DEBUG_POSTFIX@@CMAKE_SHARED_LIBRARY_SUFFIX@")
-    set(importLibraryName "assimp${ASSIMP_LIBRARY_SUFFIX}@CMAKE_DEBUG_POSTFIX@@CMAKE_IMPORT_LIBRARY_SUFFIX@")
-
-    # Import target "assimp::assimp" for configuration "Debug"
-    set_property(TARGET assimp::assimp APPEND PROPERTY IMPORTED_CONFIGURATIONS DEBUG)
-    set_target_properties(assimp::assimp PROPERTIES
-      IMPORTED_IMPLIB_DEBUG "@CMAKE_INSTALL_FULL_LIBDIR@/${importLibraryName}"
-      IMPORTED_LOCATION_DEBUG "@CMAKE_INSTALL_FULL_BINDIR@/${sharedLibraryName}"
-    )
-    list(APPEND _IMPORT_CHECK_TARGETS assimp::assimp )
-    list(APPEND _IMPORT_CHECK_FILES_FOR_assimp::assimp "@CMAKE_INSTALL_FULL_LIBDIR@/${importLibraryName}")
-    list(APPEND _IMPORT_CHECK_FILES_FOR_assimp::assimp "@CMAKE_INSTALL_FULL_BINDIR@/${sharedLibraryName}" )
-  else()
-    set(staticLibraryName "assimp${ASSIMP_LIBRARY_SUFFIX}@CMAKE_DEBUG_POSTFIX@@CMAKE_STATIC_LIBRARY_SUFFIX@")
-
-    # Import target "assimp::assimp" for configuration "Debug"
-    set_property(TARGET assimp::assimp APPEND PROPERTY IMPORTED_CONFIGURATIONS DEBUG)
-    set_target_properties(assimp::assimp PROPERTIES
-      IMPORTED_LOCATION_DEBUG "@CMAKE_INSTALL_FULL_LIBDIR@/${staticLibraryName}"
-    )
-    list(APPEND _IMPORT_CHECK_TARGETS assimp::assimp )
-    list(APPEND _IMPORT_CHECK_FILES_FOR_assimp::assimp "@CMAKE_INSTALL_FULL_LIBDIR@/${staticLibraryName}")
-  endif()
-
-else()
-  set(ASSIMP_LIBRARY_SUFFIX "@ASSIMP_LIBRARY_SUFFIX@" CACHE STRING "the suffix for the assimp libraries" )
-  if(ASSIMP_BUILD_SHARED_LIBS)
-    if(WIN32)
-      # Handle MinGW compiler.
-      set(sharedLibraryName "libassimp${ASSIMP_LIBRARY_SUFFIX}@CMAKE_DEBUG_POSTFIX@@CMAKE_SHARED_LIBRARY_SUFFIX@@CMAKE_STATIC_LIBRARY_SUFFIX@")
-    elseif(APPLE)
-      set(sharedLibraryName "libassimp${ASSIMP_LIBRARY_SUFFIX}@CMAKE_DEBUG_POSTFIX@.@ASSIMP_VERSION_MAJOR@@CMAKE_SHARED_LIBRARY_SUFFIX@")
-    else()
-      set(sharedLibraryName "libassimp${ASSIMP_LIBRARY_SUFFIX}@CMAKE_DEBUG_POSTFIX@@CMAKE_SHARED_LIBRARY_SUFFIX@.@ASSIMP_VERSION_MAJOR@")
-    endif()
-
-    # Import target "assimp::assimp" for configuration "Debug"
-    set_property(TARGET assimp::assimp APPEND PROPERTY IMPORTED_CONFIGURATIONS DEBUG)
-    set_target_properties(assimp::assimp PROPERTIES
-      IMPORTED_SONAME_DEBUG "${sharedLibraryName}"
-      IMPORTED_LOCATION_DEBUG "@CMAKE_INSTALL_FULL_LIBDIR@/${sharedLibraryName}"
-    )
-    list(APPEND _IMPORT_CHECK_TARGETS assimp::assimp )
-    list(APPEND _IMPORT_CHECK_FILES_FOR_assimp::assimp "@CMAKE_INSTALL_FULL_LIBDIR@/${sharedLibraryName}" )
-  else()
-    set(staticLibraryName "libassimp${ASSIMP_LIBRARY_SUFFIX}@CMAKE_DEBUG_POSTFIX@@CMAKE_STATIC_LIBRARY_SUFFIX@")
-
-    # Import target "assimp::assimp" for configuration "Debug"
-    set_property(TARGET assimp::assimp APPEND PROPERTY IMPORTED_CONFIGURATIONS DEBUG)
-    set_target_properties(assimp::assimp PROPERTIES
-      IMPORTED_LOCATION_DEBUG "@CMAKE_INSTALL_FULL_LIBDIR@/${staticLibraryName}"
-    )
-    list(APPEND _IMPORT_CHECK_TARGETS assimp::assimp )
-    list(APPEND _IMPORT_CHECK_FILES_FOR_assimp::assimp "@CMAKE_INSTALL_FULL_LIBDIR@/${staticLibraryName}" )
-  endif()
-endif()
-
-# Commands beyond this point should not need to know the version.
-set(CMAKE_IMPORT_FILE_VERSION)
-
-get_filename_component(ASSIMP_ROOT_DIR "@CMAKE_INSTALL_PREFIX@" REALPATH)
-set( ASSIMP_CXX_FLAGS ) # dynamically linked library
-set( ASSIMP_LINK_FLAGS "" )
-set( ASSIMP_LIBRARY_DIRS "${ASSIMP_ROOT_DIR}/@ASSIMP_LIB_INSTALL_DIR@")
-set( ASSIMP_INCLUDE_DIRS "${ASSIMP_ROOT_DIR}/@ASSIMP_INCLUDE_INSTALL_DIR@")
-if(ASSIMP_BUILD_SHARED_LIBS)
-  set( ASSIMP_LIBRARIES ${sharedLibraryName})
-else()
-  set( ASSIMP_LIBRARIES ${staticLibraryName})
-endif()
-
-# for compatibility with pkg-config
-set(ASSIMP_CFLAGS_OTHER "${ASSIMP_CXX_FLAGS}")
-set(ASSIMP_LDFLAGS_OTHER "${ASSIMP_LINK_FLAGS}")
-
-MARK_AS_ADVANCED(
-  ASSIMP_ROOT_DIR
-  ASSIMP_CXX_FLAGS
-  ASSIMP_LINK_FLAGS
-  ASSIMP_INCLUDE_DIRS
-  ASSIMP_LIBRARIES
-  ASSIMP_CFLAGS_OTHER
-  ASSIMP_LDFLAGS_OTHER
-  ASSIMP_LIBRARY_SUFFIX
-  ASSIMP_BUILD_SHARED_LIBS
-)

assimpTargets-release.cmake.in

@@ -1,127 +0,0 @@
-#----------------------------------------------------------------
-# Generated CMake target import file for configuration "Release".
-#----------------------------------------------------------------
-
-# Commands may need to know the format version.
-set(CMAKE_IMPORT_FILE_VERSION 1)
-
-set(ASSIMP_BUILD_SHARED_LIBS @BUILD_SHARED_LIBS@)
-
-get_property(LIB64 GLOBAL PROPERTY FIND_LIBRARY_USE_LIB64_PATHS)
-
-if(MSVC)
-  if(MSVC_TOOLSET_VERSION)
-    set(MSVC_PREFIX "vc${MSVC_TOOLSET_VERSION}")
-  else()
-    if( MSVC70 OR MSVC71 )
-      set(MSVC_PREFIX "vc70")
-    elseif( MSVC80 )
-      set(MSVC_PREFIX "vc80")
-    elseif( MSVC90 )
-      set(MSVC_PREFIX "vc90")
-    elseif( MSVC10 )
-      set(MSVC_PREFIX "vc100")
-    elseif( MSVC11 )
-      set(MSVC_PREFIX "vc110")
-    elseif( MSVC12 )
-      set(MSVC_PREFIX "vc120")
-    elseif( MSVC_VERSION LESS 1910)
-      set(MSVC_PREFIX "vc140")
-    elseif( MSVC_VERSION LESS 1920)
-      set(MSVC_PREFIX "vc141")
-    elseif( MSVC_VERSION LESS 1930)
-      set(MSVC_PREFIX "vc142")
-    else()
-      set(MSVC_PREFIX "vc150")
-    endif()
-  endif()
-  set(ASSIMP_LIBRARY_SUFFIX "@ASSIMP_LIBRARY_SUFFIX@-${MSVC_PREFIX}-mt" CACHE STRING "the suffix for the assimp windows library" )
-
-  if(ASSIMP_BUILD_SHARED_LIBS)
-    set(sharedLibraryName "assimp${ASSIMP_LIBRARY_SUFFIX}@CMAKE_SHARED_LIBRARY_SUFFIX@")
-    set(importLibraryName "assimp${ASSIMP_LIBRARY_SUFFIX}@CMAKE_IMPORT_LIBRARY_SUFFIX@")
-
-    # Import target "assimp::assimp" for configuration "Release"
-    set_property(TARGET assimp::assimp APPEND PROPERTY IMPORTED_CONFIGURATIONS RELEASE)
-    set_target_properties(assimp::assimp PROPERTIES
-      IMPORTED_IMPLIB_RELEASE "@CMAKE_INSTALL_FULL_LIBDIR@/${importLibraryName}"
-      IMPORTED_LOCATION_RELEASE "@CMAKE_INSTALL_FULL_BINDIR@/${sharedLibraryName}"
-    )
-    list(APPEND _IMPORT_CHECK_TARGETS assimp::assimp )
-    list(APPEND _IMPORT_CHECK_FILES_FOR_assimp::assimp "@CMAKE_INSTALL_FULL_LIBDIR@/${importLibraryName}")
-    list(APPEND _IMPORT_CHECK_FILES_FOR_assimp::assimp "@CMAKE_INSTALL_FULL_BINDIR@/${sharedLibraryName}" )
-  else()
-    set(staticLibraryName "assimp${ASSIMP_LIBRARY_SUFFIX}@CMAKE_STATIC_LIBRARY_SUFFIX@")
-
-    # Import target "assimp::assimp" for configuration "Release"
-    set_property(TARGET assimp::assimp APPEND PROPERTY IMPORTED_CONFIGURATIONS RELEASE)
-    set_target_properties(assimp::assimp PROPERTIES
-      IMPORTED_LOCATION_RELEASE "@CMAKE_INSTALL_FULL_LIBDIR@/${staticLibraryName}"
-    )
-    list(APPEND _IMPORT_CHECK_TARGETS assimp::assimp )
-    list(APPEND _IMPORT_CHECK_FILES_FOR_assimp::assimp "@CMAKE_INSTALL_FULL_LIBDIR@/${staticLibraryName}")
-  endif()
-
-else()
-  set(ASSIMP_LIBRARY_SUFFIX "@ASSIMP_LIBRARY_SUFFIX@" CACHE STRING "the suffix for the assimp libraries" )
-  if(ASSIMP_BUILD_SHARED_LIBS)
-    if(WIN32)
-      # Handle MinGW compiler.
-      set(sharedLibraryName "libassimp${ASSIMP_LIBRARY_SUFFIX}@CMAKE_DEBUG_POSTFIX@@CMAKE_SHARED_LIBRARY_SUFFIX@@CMAKE_STATIC_LIBRARY_SUFFIX@")
-    elseif(APPLE)
-      set(sharedLibraryName "libassimp${ASSIMP_LIBRARY_SUFFIX}.@ASSIMP_VERSION_MAJOR@@CMAKE_SHARED_LIBRARY_SUFFIX@")
-    else()
-      set(sharedLibraryName "libassimp${ASSIMP_LIBRARY_SUFFIX}@CMAKE_SHARED_LIBRARY_SUFFIX@.@ASSIMP_VERSION_MAJOR@")
-    endif()
-
-    # Import target "assimp::assimp" for configuration "Release"
-    set_property(TARGET assimp::assimp APPEND PROPERTY IMPORTED_CONFIGURATIONS RELEASE)
-    set_target_properties(assimp::assimp PROPERTIES
-      IMPORTED_SONAME_RELEASE "${sharedLibraryName}"
-      IMPORTED_LOCATION_RELEASE "@CMAKE_INSTALL_FULL_LIBDIR@/${sharedLibraryName}"
-    )
-    list(APPEND _IMPORT_CHECK_TARGETS assimp::assimp )
-    list(APPEND _IMPORT_CHECK_FILES_FOR_assimp::assimp "@CMAKE_INSTALL_FULL_LIBDIR@/${sharedLibraryName}" )
-  else()
-    set(staticLibraryName "libassimp${ASSIMP_LIBRARY_SUFFIX}@CMAKE_STATIC_LIBRARY_SUFFIX@")
-
-    # Import target "assimp::assimp" for configuration "Release"
-    set_property(TARGET assimp::assimp APPEND PROPERTY IMPORTED_CONFIGURATIONS RELEASE)
-    set_target_properties(assimp::assimp PROPERTIES
-      IMPORTED_LOCATION_RELEASE "@CMAKE_INSTALL_FULL_LIBDIR@/${staticLibraryName}"
-    )
-    list(APPEND _IMPORT_CHECK_TARGETS assimp::assimp )
-    list(APPEND _IMPORT_CHECK_FILES_FOR_assimp::assimp "@CMAKE_INSTALL_FULL_LIBDIR@/${staticLibraryName}" )
-  endif()
-endif()
-
-# Commands beyond this point should not need to know the version.
-set(CMAKE_IMPORT_FILE_VERSION)
-
-get_filename_component(ASSIMP_ROOT_DIR "@CMAKE_INSTALL_PREFIX@" REALPATH)
-
-set( ASSIMP_CXX_FLAGS ) # dynamically linked library
-set( ASSIMP_LINK_FLAGS "" )
-set( ASSIMP_LIBRARY_DIRS "${ASSIMP_ROOT_DIR}/@ASSIMP_LIB_INSTALL_DIR@")
-set( ASSIMP_INCLUDE_DIRS "${ASSIMP_ROOT_DIR}/@ASSIMP_INCLUDE_INSTALL_DIR@")
-if(ASSIMP_BUILD_SHARED_LIBS)
-  set( ASSIMP_LIBRARIES ${sharedLibraryName})
-else()
-  set( ASSIMP_LIBRARIES ${staticLibraryName})
-endif()
-
-# for compatibility with pkg-config
-set(ASSIMP_CFLAGS_OTHER "${ASSIMP_CXX_FLAGS}")
-set(ASSIMP_LDFLAGS_OTHER "${ASSIMP_LINK_FLAGS}")
-
-MARK_AS_ADVANCED(
-  ASSIMP_ROOT_DIR
-  ASSIMP_CXX_FLAGS
-  ASSIMP_LINK_FLAGS
-  ASSIMP_INCLUDE_DIRS
-  ASSIMP_LIBRARIES
-  ASSIMP_CFLAGS_OTHER
-  ASSIMP_LDFLAGS_OTHER
-  ASSIMP_LIBRARY_SUFFIX
-  ASSIMP_BUILD_SHARED_LIBS
-)

assimpTargets.cmake.in

@@ -1,91 +0,0 @@
-# Generated by CMake
-
-if("${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION}" LESS 2.5)
-   message(FATAL_ERROR "CMake >= 2.6.0 required")
-endif()
-cmake_policy(PUSH)
-cmake_policy(VERSION 2.6)
-# Required for the evaluation of "if(@BUILD_SHARED_LIBS@)" below to function
-cmake_policy(SET CMP0012 NEW)
-
-#----------------------------------------------------------------
-# Generated CMake target import file.
-#----------------------------------------------------------------
-
-# Commands may need to know the format version.
-set(CMAKE_IMPORT_FILE_VERSION 1)
-
-# Protect against multiple inclusion, which would fail when already imported targets are added once more.
-set(_targetsDefined)
-set(_targetsNotDefined)
-set(_expectedTargets)
-foreach(_expectedTarget assimp::assimp)
-  list(APPEND _expectedTargets ${_expectedTarget})
-  if(NOT TARGET ${_expectedTarget})
-    list(APPEND _targetsNotDefined ${_expectedTarget})
-  endif()
-  if(TARGET ${_expectedTarget})
-    list(APPEND _targetsDefined ${_expectedTarget})
-  endif()
-endforeach()
-if("${_targetsDefined}" STREQUAL "${_expectedTargets}")
-  unset(_targetsDefined)
-  unset(_targetsNotDefined)
-  unset(_expectedTargets)
-  set(CMAKE_IMPORT_FILE_VERSION)
-  cmake_policy(POP)
-  return()
-endif()
-if(NOT "${_targetsDefined}" STREQUAL "")
-  message(FATAL_ERROR "Some (but not all) targets in this export set were already defined.\nTargets Defined: ${_targetsDefined}\nTargets not yet defined: ${_targetsNotDefined}\n")
-endif()
-unset(_targetsDefined)
-unset(_targetsNotDefined)
-unset(_expectedTargets)
-
-# Create imported target assimp::assimp
-add_library(assimp::assimp @BUILD_LIB_TYPE@ IMPORTED)
-
-set_target_properties(assimp::assimp PROPERTIES
-  COMPATIBLE_INTERFACE_STRING "assimp_MAJOR_VERSION"
-  INTERFACE_assimp_MAJOR_VERSION "1"
-  INTERFACE_INCLUDE_DIRECTORIES "@CMAKE_INSTALL_FULL_INCLUDEDIR@"
-  #INTERFACE_LINK_LIBRARIES "TxtUtils::TxtUtils;MealyMachine::MealyMachine"
-)
-
-if(CMAKE_VERSION VERSION_LESS 2.8.12)
-  message(FATAL_ERROR "This file relies on consumers using CMake 2.8.12 or greater.")
-endif()
-
-# Load information for each installed configuration.
-get_filename_component(_DIR "${CMAKE_CURRENT_LIST_FILE}" PATH)
-file(GLOB CONFIG_FILES "${_DIR}/assimpTargets-*.cmake")
-foreach(f ${CONFIG_FILES})
-  include(${f})
-endforeach()
-
-# Loop over all imported files and verify that they actually exist
-foreach(target ${_IMPORT_CHECK_TARGETS} )
-  foreach(file ${_IMPORT_CHECK_FILES_FOR_${target}} )
-    if(NOT EXISTS "${file}" )
-      message(FATAL_ERROR "The imported target \"${target}\" references the file
-   \"${file}\"
-but this file does not exist.  Possible reasons include:
-* The file was deleted, renamed, or moved to another location.
-* An install or uninstall procedure did not complete successfully.
-* The installation package was faulty and contained
-   \"${CMAKE_CURRENT_LIST_FILE}\"
-but not all the files it references.
-")
-    endif()
-  endforeach()
-  unset(_IMPORT_CHECK_FILES_FOR_${target})
-endforeach()
-unset(_IMPORT_CHECK_TARGETS)
-
-# This file does not depend on other imported targets which have
-# been exported from the same project but in a separate export set.
-
-# Commands beyond this point should not need to know the version.
-set(CMAKE_IMPORT_FILE_VERSION)
-cmake_policy(POP)

cmake-modules/FindDirectX.cmake

@@ -55,7 +55,7 @@ if(WIN32) # The only platform it makes sense to check for DirectX SDK
   endif(CMAKE_CL_64)
   find_library(DirectX_LIBRARY NAMES d3d9 HINTS ${DirectX_LIB_SEARCH_PATH} PATH_SUFFIXES ${DirectX_LIBPATH_SUFFIX})
   find_library(DirectX_D3DX9_LIBRARY NAMES d3dx9 HINTS ${DirectX_LIB_SEARCH_PATH} PATH_SUFFIXES ${DirectX_LIBPATH_SUFFIX})
-  find_library(DirectX_DXERR_LIBRARY NAMES DxErr HINTS ${DirectX_LIB_SEARCH_PATH} PATH_SUFFIXES ${DirectX_LIBPATH_SUFFIX})
+  find_library(DirectX_DXERR_LIBRARY NAMES DxErr DxErr9 HINTS ${DirectX_LIB_SEARCH_PATH} PATH_SUFFIXES ${DirectX_LIBPATH_SUFFIX})
   find_library(DirectX_DXGUID_LIBRARY NAMES dxguid HINTS ${DirectX_LIB_SEARCH_PATH} PATH_SUFFIXES ${DirectX_LIBPATH_SUFFIX})
 
 

cmake-modules/FindIrrXML.cmake

@@ -1,17 +0,0 @@
-# Find IrrXMl from irrlicht project
-#
-# Find LibIrrXML headers and library
-#
-#   IRRXML_FOUND          - IrrXML found
-#   IRRXML_INCLUDE_DIR    - Headers location
-#   IRRXML_LIBRARY        - IrrXML main library
-
-find_path(IRRXML_INCLUDE_DIR irrXML.h
-    PATH_SUFFIXES include/irrlicht include/irrxml)
-find_library(IRRXML_LIBRARY IrrXML)
-
-include(FindPackageHandleStandardArgs)
-find_package_handle_standard_args(IrrXML REQUIRED_VARS IRRXML_INCLUDE_DIR IRRXML_LIBRARY)
-
-
-mark_as_advanced(IRRXML_INCLUDE_DIR IRRXML_LIBRARY)

cmake-modules/FindPkgMacros.cmake

@@ -54,7 +54,7 @@ macro(clear_if_changed TESTVAR)
       set(${var} "NOTFOUND" CACHE STRING "x" FORCE)
     endforeach(var)
   endif ()
-  set(${TESTVAR}_INT_CHECK ${${TESTVAR}} CACHE INTERNAL "x" FORCE)
+  set(${TESTVAR}_INT_CHECK "${${TESTVAR}}" CACHE INTERNAL "x" FORCE)
 endmacro(clear_if_changed)
 
 # Try to get some hints from pkg-config, if available

cmake-modules/FindRT.cmake

@@ -16,5 +16,5 @@ set(RT_LIBRARIES ${RT_LIBRARY})
 # handle the QUIETLY and REQUIRED arguments and set
 # RT_FOUND to TRUE if all listed variables are TRUE
 include(FindPackageHandleStandardArgs)
-find_package_handle_standard_args(rt DEFAULT_MSG RT_LIBRARY)
+find_package_handle_standard_args(RT DEFAULT_MSG RT_LIBRARY)
 mark_as_advanced(RT_LIBRARY)

cmake-modules/HunterGate.cmake

@@ -1,4 +1,4 @@
-# Copyright (c) 2013-2018, Ruslan Baratov
+# Copyright (c) 2013-2019, Ruslan Baratov
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -22,45 +22,16 @@
 # OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-# This is a gate file to Hunter package manager.
-# Include this file using `include` command and add package you need, example:
-#
-#     cmake_minimum_required(VERSION 3.2)
-#
-#     include("cmake/HunterGate.cmake")
-#     HunterGate(
-#         URL "https://github.com/path/to/hunter/archive.tar.gz"
-#         SHA1 "798501e983f14b28b10cda16afa4de69eee1da1d"
-#     )
-#
-#     project(MyProject)
-#
-#     hunter_add_package(Foo)
-#     hunter_add_package(Boo COMPONENTS Bar Baz)
-#
-# Projects:
-#     * https://github.com/hunter-packages/gate/
-#     * https://github.com/ruslo/hunter
 
 option(HUNTER_ENABLED "Enable Hunter package manager support" ON)
 
-if(HUNTER_ENABLED)
-  if(CMAKE_VERSION VERSION_LESS "3.2")
-    message(
-        FATAL_ERROR
-        "At least CMake version 3.2 required for Hunter dependency management."
-        " Update CMake or set HUNTER_ENABLED to OFF."
-    )
-  endif()
-endif()
-
 include(CMakeParseArguments) # cmake_parse_arguments
 
 option(HUNTER_STATUS_PRINT "Print working status" ON)
 option(HUNTER_STATUS_DEBUG "Print a lot info" OFF)
 option(HUNTER_TLS_VERIFY "Enable/disable TLS certificate checking on downloads" ON)
 
-set(HUNTER_WIKI "https://github.com/ruslo/hunter/wiki")
+set(HUNTER_ERROR_PAGE "https://docs.hunter.sh/en/latest/reference/errors")
 
 function(hunter_gate_status_print)
   if(HUNTER_STATUS_PRINT OR HUNTER_STATUS_DEBUG)
@@ -79,9 +50,9 @@ function(hunter_gate_status_debug)
   endif()
 endfunction()
 
-function(hunter_gate_wiki wiki_page)
-  message("------------------------------ WIKI -------------------------------")
-  message("    ${HUNTER_WIKI}/${wiki_page}")
+function(hunter_gate_error_page error_page)
+  message("------------------------------ ERROR ------------------------------")
+  message("    ${HUNTER_ERROR_PAGE}/${error_page}.html")
   message("-------------------------------------------------------------------")
   message("")
   message(FATAL_ERROR "")
@@ -94,14 +65,13 @@ function(hunter_gate_internal_error)
   endforeach()
   message("[hunter ** INTERNAL **] [Directory:${CMAKE_CURRENT_LIST_DIR}]")
   message("")
-  hunter_gate_wiki("error.internal")
+  hunter_gate_error_page("error.internal")
 endfunction()
 
 function(hunter_gate_fatal_error)
-  cmake_parse_arguments(hunter "" "WIKI" "" "${ARGV}")
-  string(COMPARE EQUAL "${hunter_WIKI}" "" have_no_wiki)
-  if(have_no_wiki)
-    hunter_gate_internal_error("Expected wiki")
+  cmake_parse_arguments(hunter "" "ERROR_PAGE" "" "${ARGV}")
+  if("${hunter_ERROR_PAGE}" STREQUAL "")
+    hunter_gate_internal_error("Expected ERROR_PAGE")
   endif()
   message("")
   foreach(x ${hunter_UNPARSED_ARGUMENTS})
@@ -109,11 +79,11 @@ function(hunter_gate_fatal_error)
   endforeach()
   message("[hunter ** FATAL ERROR **] [Directory:${CMAKE_CURRENT_LIST_DIR}]")
   message("")
-  hunter_gate_wiki("${hunter_WIKI}")
+  hunter_gate_error_page("${hunter_ERROR_PAGE}")
 endfunction()
 
 function(hunter_gate_user_error)
-  hunter_gate_fatal_error(${ARGV} WIKI "error.incorrect.input.data")
+  hunter_gate_fatal_error(${ARGV} ERROR_PAGE "error.incorrect.input.data")
 endfunction()
 
 function(hunter_gate_self root version sha1 result)
@@ -195,7 +165,7 @@ function(hunter_gate_detect_root)
 
   hunter_gate_fatal_error(
       "Can't detect HUNTER_ROOT"
-      WIKI "error.detect.hunter.root"
+      ERROR_PAGE "error.detect.hunter.root"
   )
 endfunction()
 
@@ -214,7 +184,7 @@ function(hunter_gate_download dir)
         "Settings:"
         "  HUNTER_ROOT: ${HUNTER_GATE_ROOT}"
         "  HUNTER_SHA1: ${HUNTER_GATE_SHA1}"
-        WIKI "error.run.install"
+        ERROR_PAGE "error.run.install"
     )
   endif()
   string(COMPARE EQUAL "${dir}" "" is_bad)
@@ -400,7 +370,7 @@ macro(HunterGate)
       hunter_gate_fatal_error(
           "Please set HunterGate *before* 'project' command. "
           "Detected project: ${PROJECT_NAME}"
-          WIKI "error.huntergate.before.project"
+          ERROR_PAGE "error.huntergate.before.project"
       )
     endif()
 
@@ -470,7 +440,7 @@ macro(HunterGate)
             "HUNTER_ROOT (${HUNTER_GATE_ROOT}) contains spaces."
             "Set HUNTER_ALLOW_SPACES_IN_PATH=ON to skip this error"
             "(Use at your own risk!)"
-            WIKI "error.spaces.in.hunter.root"
+            ERROR_PAGE "error.spaces.in.hunter.root"
         )
       endif()
     endif()

cmake-modules/assimp-hunter-config.cmake.in

@@ -0,0 +1,19 @@
+@PACKAGE_INIT@
+
+find_package(RapidJSON     CONFIG REQUIRED)
+find_package(ZLIB          CONFIG REQUIRED)
+find_package(utf8cpp       CONFIG REQUIRED)
+find_package(minizip       CONFIG REQUIRED)
+find_package(openddlparser CONFIG REQUIRED)
+find_package(poly2tri      CONFIG REQUIRED)
+find_package(polyclipping  CONFIG REQUIRED)
+find_package(zip           CONFIG REQUIRED)
+find_package(pugixml       CONFIG REQUIRED)
+find_package(stb           CONFIG REQUIRED)
+
+if(@ASSIMP_BUILD_DRACO@)
+  find_package(draco CONFIG REQUIRED)
+endif()
+
+include("${CMAKE_CURRENT_LIST_DIR}/@TARGETS_EXPORT_NAME@.cmake")
+check_required_components("@PROJECT_NAME@")

cmake-modules/assimp-plain-config.cmake.in

@@ -0,0 +1,9 @@
+@PACKAGE_INIT@
+
+include("${CMAKE_CURRENT_LIST_DIR}/@TARGETS_EXPORT_NAME@.cmake")
+
+set(ASSIMP_ROOT_DIR ${PACKAGE_PREFIX_DIR})
+set(ASSIMP_LIBRARIES assimp::assimp)
+set(ASSIMP_BUILD_SHARED_LIBS @BUILD_SHARED_LIBS@)
+get_property(ASSIMP_INCLUDE_DIRS TARGET assimp::assimp PROPERTY INTERFACE_INCLUDE_DIRECTORIES)
+set(ASSIMP_LIBRARY_DIRS "")

cmake/assimp-hunter-config.cmake.in

@@ -1,14 +0,0 @@
-@PACKAGE_INIT@
-
-find_package(RapidJSON CONFIG REQUIRED)
-find_package(ZLIB CONFIG REQUIRED)
-find_package(utf8cpp CONFIG REQUIRED)
-find_package(irrXML CONFIG REQUIRED)
-find_package(minizip CONFIG REQUIRED)
-find_package(openddlparser CONFIG REQUIRED)
-find_package(poly2tri CONFIG REQUIRED)
-find_package(polyclipping CONFIG REQUIRED)
-find_package(zip CONFIG REQUIRED)
-
-include("${CMAKE_CURRENT_LIST_DIR}/@TARGETS_EXPORT_NAME@.cmake")
-check_required_components("@PROJECT_NAME@")

code/AssetLib/3DS/3DSConverter.cpp

@@ -3,7 +3,7 @@
 Open Asset Import Library (assimp)
 ---------------------------------------------------------------------------
 
-Copyright (c) 2006-2020, assimp team
+Copyright (c) 2006-2024, assimp team
 
 All rights reserved.
 
@@ -52,9 +52,9 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include <cctype>
 #include <memory>
 
-using namespace Assimp;
+namespace Assimp {
 
-static const unsigned int NotSet = 0xcdcdcdcd;
+static constexpr unsigned int NotSet = 0xcdcdcdcd;
 
 // ------------------------------------------------------------------------------------------------
 // Setup final material indices, generae a default material if necessary
@@ -68,8 +68,8 @@ void Discreet3DSImporter::ReplaceDefaultMaterial() {
     unsigned int idx(NotSet);
     for (unsigned int i = 0; i < mScene->mMaterials.size(); ++i) {
         std::string s = mScene->mMaterials[i].mName;
-        for (std::string::iterator it = s.begin(); it != s.end(); ++it) {
-            *it = static_cast<char>(::tolower(*it));
+        for (char &it : s) {
+            it = static_cast<char>(::tolower(static_cast<unsigned char>(it)));
         }
 
         if (std::string::npos == s.find("default")) continue;
@@ -79,12 +79,7 @@ void Discreet3DSImporter::ReplaceDefaultMaterial() {
                 mScene->mMaterials[i].mDiffuse.r !=
                         mScene->mMaterials[i].mDiffuse.b) continue;
 
-        if (mScene->mMaterials[i].sTexDiffuse.mMapName.length() != 0 ||
-                mScene->mMaterials[i].sTexBump.mMapName.length() != 0 ||
-                mScene->mMaterials[i].sTexOpacity.mMapName.length() != 0 ||
-                mScene->mMaterials[i].sTexEmissive.mMapName.length() != 0 ||
-                mScene->mMaterials[i].sTexSpecular.mMapName.length() != 0 ||
-                mScene->mMaterials[i].sTexShininess.mMapName.length() != 0) {
+        if (ContainsTextures(i)) {
             continue;
         }
         idx = i;
@@ -212,7 +207,7 @@ void Discreet3DSImporter::ConvertMaterial(D3DS::Material &oldMat,
         mat.AddProperty(&tex, AI_MATKEY_GLOBAL_BACKGROUND_IMAGE);
 
         // Be sure this is only done for the first material
-        mBackgroundImage = std::string("");
+        mBackgroundImage = std::string();
     }
 
     // At first add the base ambient color of the scene to the material
@@ -267,6 +262,7 @@ void Discreet3DSImporter::ConvertMaterial(D3DS::Material &oldMat,
         unsigned int iWire = 1;
         mat.AddProperty<int>((int *)&iWire, 1, AI_MATKEY_ENABLE_WIREFRAME);
     }
+        [[fallthrough]];
 
     case D3DS::Discreet3DS::Gouraud:
         eShading = aiShadingMode_Gouraud;
@@ -597,7 +593,7 @@ void Discreet3DSImporter::AddNodeToGraph(aiScene *pcSOut, aiNode *pcOut,
 
         // Cameras or lights define their transformation in their parent node and in the
         // corresponding light or camera chunks. However, we read and process the latter
-        // to to be able to return valid cameras/lights even if no scenegraph is given.
+        // to be able to return valid cameras/lights even if no scenegraph is given.
         for (unsigned int n = 0; n < pcSOut->mNumCameras; ++n) {
             if (pcSOut->mCameras[n]->mName == pcOut->mName) {
                 pcSOut->mCameras[n]->mLookAt = aiVector3D(0.f, 0.f, 1.f);
@@ -647,11 +643,17 @@ void Discreet3DSImporter::AddNodeToGraph(aiScene *pcSOut, aiNode *pcOut,
     }
 
     // Allocate storage for children
-    pcOut->mNumChildren = (unsigned int)pcIn->mChildren.size();
+    const unsigned int size = static_cast<unsigned int>(pcIn->mChildren.size());
+
+    pcOut->mNumChildren = size;
+    if (size == 0) {
+        return;
+    }
+
     pcOut->mChildren = new aiNode *[pcIn->mChildren.size()];
 
     // Recursively process all children
-    const unsigned int size = static_cast<unsigned int>(pcIn->mChildren.size());
+    
     for (unsigned int i = 0; i < size; ++i) {
         pcOut->mChildren[i] = new aiNode();
         pcOut->mChildren[i]->mParent = pcOut;
@@ -713,7 +715,7 @@ void Discreet3DSImporter::GenerateNodeGraph(aiScene *pcOut) {
             pcNode->mNumMeshes = 1;
 
             // Build a name for the node
-            pcNode->mName.length = ai_snprintf(pcNode->mName.data, MAXLEN, "3DSMesh_%u", i);
+            pcNode->mName.length = ai_snprintf(pcNode->mName.data, AI_MAXLEN, "3DSMesh_%u", i);
         }
 
         // Build dummy nodes for all cameras
@@ -809,4 +811,6 @@ void Discreet3DSImporter::ConvertScene(aiScene *pcOut) {
     }
 }
 
+} // namespace Assimp
+
 #endif // !! ASSIMP_BUILD_NO_3DS_IMPORTER

code/AssetLib/3DS/3DSExporter.cpp

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2020, assimp team
+Copyright (c) 2006-2024, assimp team
 
 
 All rights reserved.
@@ -52,12 +52,13 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include <assimp/StringComparison.h>
 #include <assimp/DefaultLogger.hpp>
 #include <assimp/Exporter.hpp>
+#include <assimp/Exceptional.h>
 #include <assimp/IOSystem.hpp>
 
 #include <memory>
 
-using namespace Assimp;
 namespace Assimp {
+
 using namespace D3DS;
 
 namespace {
@@ -102,13 +103,14 @@ private:
 // preserves the mesh's given name if it has one. |index| is the index
 // of the mesh in |aiScene::mMeshes|.
 std::string GetMeshName(const aiMesh &mesh, unsigned int index, const aiNode &node) {
-    static const std::string underscore = "_";
+    static const char underscore = '_';
     char postfix[10] = { 0 };
     ASSIMP_itoa10(postfix, index);
 
     std::string result = node.mName.C_Str();
     if (mesh.mName.length > 0) {
-        result += underscore + mesh.mName.C_Str();
+        result += underscore;
+        result += mesh.mName.C_Str();
     }
     return result + underscore + postfix;
 }
@@ -208,9 +210,7 @@ Discreet3DSExporter::Discreet3DSExporter(std::shared_ptr<IOStream> &outfile, con
 }
 
 // ------------------------------------------------------------------------------------------------
-Discreet3DSExporter::~Discreet3DSExporter() {
-    // empty
-}
+Discreet3DSExporter::~Discreet3DSExporter() = default;
 
 // ------------------------------------------------------------------------------------------------
 int Discreet3DSExporter::WriteHierarchy(const aiNode &node, int seq, int sibling_level) {
@@ -296,6 +296,12 @@ void Discreet3DSExporter::WriteMaterials() {
             WriteColor(color);
         }
 
+        float f;
+        if (mat.Get(AI_MATKEY_OPACITY, f) == AI_SUCCESS) {
+            ChunkWriter chunk(writer, Discreet3DS::CHUNK_MAT_TRANSPARENCY);
+            WritePercentChunk(1.0f - f);
+        }
+
         if (mat.Get(AI_MATKEY_COLOR_EMISSIVE, color) == AI_SUCCESS) {
             ChunkWriter curChunk(writer, Discreet3DS::CHUNK_MAT_SELF_ILLUM);
             WriteColor(color);
@@ -323,6 +329,7 @@ void Discreet3DSExporter::WriteMaterials() {
             case aiShadingMode_Blinn:
             case aiShadingMode_CookTorrance:
             case aiShadingMode_Fresnel:
+            case aiShadingMode_PBR_BRDF: // Possibly should be Discreet3DS::Metal in some cases but this is undocumented
                 shading_mode_out = Discreet3DS::Phong;
                 break;
 
@@ -333,7 +340,6 @@ void Discreet3DSExporter::WriteMaterials() {
             writer.PutU2(static_cast<uint16_t>(shading_mode_out));
         }
 
-        float f;
         if (mat.Get(AI_MATKEY_SHININESS, f) == AI_SUCCESS) {
             ChunkWriter chunk(writer, Discreet3DS::CHUNK_MAT_SHININESS);
             WritePercentChunk(f);
@@ -350,7 +356,10 @@ void Discreet3DSExporter::WriteMaterials() {
             writer.PutI2(1);
         }
 
-        WriteTexture(mat, aiTextureType_DIFFUSE, Discreet3DS::CHUNK_MAT_TEXTURE);
+        // Fallback to BASE_COLOR if no DIFFUSE
+        if (!WriteTexture(mat, aiTextureType_DIFFUSE, Discreet3DS::CHUNK_MAT_TEXTURE))
+            WriteTexture(mat, aiTextureType_BASE_COLOR, Discreet3DS::CHUNK_MAT_TEXTURE);
+
         WriteTexture(mat, aiTextureType_HEIGHT, Discreet3DS::CHUNK_MAT_BUMPMAP);
         WriteTexture(mat, aiTextureType_OPACITY, Discreet3DS::CHUNK_MAT_OPACMAP);
         WriteTexture(mat, aiTextureType_SHININESS, Discreet3DS::CHUNK_MAT_MAT_SHINMAP);
@@ -361,20 +370,21 @@ void Discreet3DSExporter::WriteMaterials() {
 }
 
 // ------------------------------------------------------------------------------------------------
-void Discreet3DSExporter::WriteTexture(const aiMaterial &mat, aiTextureType type, uint16_t chunk_flags) {
+// returns true if the texture existed
+bool Discreet3DSExporter::WriteTexture(const aiMaterial &mat, aiTextureType type, uint16_t chunk_flags) {
     aiString path;
     aiTextureMapMode map_mode[2] = {
         aiTextureMapMode_Wrap, aiTextureMapMode_Wrap
     };
     ai_real blend = 1.0;
     if (mat.GetTexture(type, 0, &path, nullptr, nullptr, &blend, nullptr, map_mode) != AI_SUCCESS || !path.length) {
-        return;
+        return false;
     }
 
     // TODO: handle embedded textures properly
     if (path.data[0] == '*') {
-        ASSIMP_LOG_ERROR("Ignoring embedded texture for export: " + std::string(path.C_Str()));
-        return;
+        ASSIMP_LOG_ERROR("Ignoring embedded texture for export: ", path.C_Str());
+        return false;
     }
 
     ChunkWriter chunk(writer, chunk_flags);
@@ -396,6 +406,7 @@ void Discreet3DSExporter::WriteTexture(const aiMaterial &mat, aiTextureType type
         writer.PutU2(val);
     }
     // TODO: export texture transformation (i.e. UV offset, scale, rotation)
+    return true;
 }
 
 // ------------------------------------------------------------------------------------------------
@@ -439,7 +450,7 @@ void Discreet3DSExporter::WriteMeshes() {
             const uint16_t count = static_cast<uint16_t>(mesh.mNumVertices);
             writer.PutU2(count);
             for (unsigned int i = 0; i < mesh.mNumVertices; ++i) {
-                const aiVector3D &v = trafo * mesh.mVertices[i];
+                const aiVector3D &v = mesh.mVertices[i];
                 writer.PutF4(v.x);
                 writer.PutF4(v.y);
                 writer.PutF4(v.z);
@@ -501,11 +512,16 @@ void Discreet3DSExporter::WriteMeshes() {
         // Transformation matrix by which the mesh vertices have been pre-transformed with.
         {
             ChunkWriter curChunk(writer, Discreet3DS::CHUNK_TRMATRIX);
-            for (unsigned int r = 0; r < 4; ++r) {
+            // Store rotation 3x3 matrix row wise
+            for (unsigned int r = 0; r < 3; ++r) {
                 for (unsigned int c = 0; c < 3; ++c) {
                     writer.PutF4(trafo[r][c]);
                 }
             }
+            // Store translation sub vector column wise
+            for (unsigned int r = 0; r < 3; ++r) {
+                writer.PutF4(trafo[r][3]);
+            }
         }
     }
 }

code/AssetLib/3DS/3DSExporter.h

@@ -2,8 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2020, assimp team
-
+Copyright (c) 2006-2024, assimp team
 
 All rights reserved.
 
@@ -57,8 +56,7 @@ struct aiNode;
 struct aiMaterial;
 struct aiMesh;
 
-namespace Assimp
-{
+namespace Assimp {
 
 // ------------------------------------------------------------------------------------------------
 /**
@@ -73,7 +71,7 @@ public:
 private:
     void WriteMeshes();
     void WriteMaterials();
-    void WriteTexture(const aiMaterial& mat, aiTextureType type, uint16_t chunk_flags);
+    bool WriteTexture(const aiMaterial& mat, aiTextureType type, uint16_t chunk_flags);
     void WriteFaceMaterialChunk(const aiMesh& mesh);
     int WriteHierarchy(const aiNode& node, int level, int sibling_level);
     void WriteString(const std::string& s);
@@ -88,7 +86,7 @@ private:
 
     std::map<const aiNode*, aiMatrix4x4> trafos;
 
-    typedef std::multimap<const aiNode*, unsigned int> MeshesByNodeMap;
+    using MeshesByNodeMap = std::multimap<const aiNode*, unsigned int>;
     MeshesByNodeMap meshes;
 
 };

code/AssetLib/3DS/3DSHelper.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2020, assimp team
+Copyright (c) 2006-2024, assimp team
 
 
 All rights reserved.
@@ -53,7 +53,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include <assimp/light.h>
 #include <assimp/material.h>
 #include <assimp/qnan.h>
-#include <stdio.h> //sprintf
+#include <cstdio> //sprintf
 
 namespace Assimp {
 namespace D3DS {
@@ -61,20 +61,10 @@ namespace D3DS {
 #include <assimp/Compiler/pushpack1.h>
 
 // ---------------------------------------------------------------------------
-/** Discreet3DS class: Helper class for loading 3ds files. Defines chunks
-*  and data structures.
+/** Defines chunks and data structures.
 */
-class Discreet3DS {
-private:
-    Discreet3DS() AI_NO_EXCEPT {
-        // empty
-    }
+namespace Discreet3DS {
 
-    ~Discreet3DS() {
-        // empty
-    }
-
-public:
     //! data structure for a single chunk in a .3ds file
     struct Chunk {
         uint16_t Flag;
@@ -269,7 +259,7 @@ public:
         // Specifies the file name of a texture
         CHUNK_MAPFILE = 0xA300,
 
-        // Specifies whether a materail requires two-sided rendering
+        // Specifies whether a material requires two-sided rendering
         CHUNK_MAT_TWO_SIDE = 0xA081,
         // ********************************************************************
 
@@ -314,7 +304,7 @@ public:
         // camera sub-chunks
         CHUNK_CAM_RANGES = 0x4720
     };
-};
+}
 
 // ---------------------------------------------------------------------------
 /** Helper structure representing a 3ds mesh face */
@@ -332,7 +322,6 @@ struct Texture {
     //! Default constructor
     Texture() AI_NO_EXCEPT
             : mTextureBlend(0.0f),
-              mMapName(),
               mOffsetU(0.0),
               mOffsetV(0.0),
               mScaleU(1.0),
@@ -344,51 +333,11 @@ struct Texture {
         mTextureBlend = get_qnan();
     }
 
-    Texture(const Texture &other) :
-            mTextureBlend(other.mTextureBlend),
-            mMapName(other.mMapName),
-            mOffsetU(other.mOffsetU),
-            mOffsetV(other.mOffsetV),
-            mScaleU(other.mScaleU),
-            mScaleV(other.mScaleV),
-            mRotation(other.mRotation),
-            mMapMode(other.mMapMode),
-            bPrivate(other.bPrivate),
-            iUVSrc(other.iUVSrc) {
-        // empty
-    }
+    Texture(const Texture &other) = default;
 
-    Texture(Texture &&other) AI_NO_EXCEPT : mTextureBlend(std::move(other.mTextureBlend)),
-                                            mMapName(std::move(other.mMapName)),
-                                            mOffsetU(std::move(other.mOffsetU)),
-                                            mOffsetV(std::move(other.mOffsetV)),
-                                            mScaleU(std::move(other.mScaleU)),
-                                            mScaleV(std::move(other.mScaleV)),
-                                            mRotation(std::move(other.mRotation)),
-                                            mMapMode(std::move(other.mMapMode)),
-                                            bPrivate(std::move(other.bPrivate)),
-                                            iUVSrc(std::move(other.iUVSrc)) {
-        // empty
-    }
+    Texture(Texture &&other) AI_NO_EXCEPT = default;
 
-    Texture &operator=(Texture &&other) AI_NO_EXCEPT {
-        if (this == &other) {
-            return *this;
-        }
-
-        mTextureBlend = std::move(other.mTextureBlend);
-        mMapName = std::move(other.mMapName);
-        mOffsetU = std::move(other.mOffsetU);
-        mOffsetV = std::move(other.mOffsetV);
-        mScaleU = std::move(other.mScaleU);
-        mScaleV = std::move(other.mScaleV);
-        mRotation = std::move(other.mRotation);
-        mMapMode = std::move(other.mMapMode);
-        bPrivate = std::move(other.bPrivate);
-        iUVSrc = std::move(other.iUVSrc);
-
-        return *this;
-    }
+    Texture &operator=(Texture &&other) AI_NO_EXCEPT = default;
 
     //! Specifies the blend factor for the texture
     ai_real mTextureBlend;
@@ -416,14 +365,13 @@ struct Texture {
 #ifdef _MSC_VER
 #pragma warning(pop)
 #endif // _MSC_VER
-
 // ---------------------------------------------------------------------------
 /** Helper structure representing a 3ds material */
 struct Material {
     //! Default constructor has been deleted
     Material() :
             mName(),
-            mDiffuse(ai_real(0.6), ai_real(0.6), ai_real(0.6)),
+            mDiffuse(0.6f, 0.6f, 0.6f),
             mSpecularExponent(ai_real(0.0)),
             mShininessStrength(ai_real(1.0)),
             mShading(Discreet3DS::Gouraud),
@@ -436,7 +384,7 @@ struct Material {
     //! Constructor with explicit name
     explicit Material(const std::string &name) :
             mName(name),
-            mDiffuse(ai_real(0.6), ai_real(0.6), ai_real(0.6)),
+            mDiffuse(0.6f, 0.6f, 0.6f),
             mSpecularExponent(ai_real(0.0)),
             mShininessStrength(ai_real(1.0)),
             mShading(Discreet3DS::Gouraud),
@@ -446,83 +394,9 @@ struct Material {
         // empty
     }
 
-    Material(const Material &other) :
-            mName(other.mName),
-            mDiffuse(other.mDiffuse),
-            mSpecularExponent(other.mSpecularExponent),
-            mShininessStrength(other.mShininessStrength),
-            mSpecular(other.mSpecular),
-            mAmbient(other.mAmbient),
-            mShading(other.mShading),
-            mTransparency(other.mTransparency),
-            sTexDiffuse(other.sTexDiffuse),
-            sTexOpacity(other.sTexOpacity),
-            sTexSpecular(other.sTexSpecular),
-            sTexReflective(other.sTexReflective),
-            sTexBump(other.sTexBump),
-            sTexEmissive(other.sTexEmissive),
-            sTexShininess(other.sTexShininess),
-            mBumpHeight(other.mBumpHeight),
-            mEmissive(other.mEmissive),
-            sTexAmbient(other.sTexAmbient),
-            mTwoSided(other.mTwoSided) {
-        // empty
-    }
+    Material(const Material &other) = default;
 
-    //! Move constructor. This is explicitly written because MSVC doesn't support defaulting it
-    Material(Material &&other) AI_NO_EXCEPT : mName(std::move(other.mName)),
-                                              mDiffuse(std::move(other.mDiffuse)),
-                                              mSpecularExponent(std::move(other.mSpecularExponent)),
-                                              mShininessStrength(std::move(other.mShininessStrength)),
-                                              mSpecular(std::move(other.mSpecular)),
-                                              mAmbient(std::move(other.mAmbient)),
-                                              mShading(std::move(other.mShading)),
-                                              mTransparency(std::move(other.mTransparency)),
-                                              sTexDiffuse(std::move(other.sTexDiffuse)),
-                                              sTexOpacity(std::move(other.sTexOpacity)),
-                                              sTexSpecular(std::move(other.sTexSpecular)),
-                                              sTexReflective(std::move(other.sTexReflective)),
-                                              sTexBump(std::move(other.sTexBump)),
-                                              sTexEmissive(std::move(other.sTexEmissive)),
-                                              sTexShininess(std::move(other.sTexShininess)),
-                                              mBumpHeight(std::move(other.mBumpHeight)),
-                                              mEmissive(std::move(other.mEmissive)),
-                                              sTexAmbient(std::move(other.sTexAmbient)),
-                                              mTwoSided(std::move(other.mTwoSided)) {
-        // empty
-    }
-
-    Material &operator=(Material &&other) AI_NO_EXCEPT {
-        if (this == &other) {
-            return *this;
-        }
-
-        mName = std::move(other.mName);
-        mDiffuse = std::move(other.mDiffuse);
-        mSpecularExponent = std::move(other.mSpecularExponent);
-        mShininessStrength = std::move(other.mShininessStrength),
-        mSpecular = std::move(other.mSpecular);
-        mAmbient = std::move(other.mAmbient);
-        mShading = std::move(other.mShading);
-        mTransparency = std::move(other.mTransparency);
-        sTexDiffuse = std::move(other.sTexDiffuse);
-        sTexOpacity = std::move(other.sTexOpacity);
-        sTexSpecular = std::move(other.sTexSpecular);
-        sTexReflective = std::move(other.sTexReflective);
-        sTexBump = std::move(other.sTexBump);
-        sTexEmissive = std::move(other.sTexEmissive);
-        sTexShininess = std::move(other.sTexShininess);
-        mBumpHeight = std::move(other.mBumpHeight);
-        mEmissive = std::move(other.mEmissive);
-        sTexAmbient = std::move(other.sTexAmbient);
-        mTwoSided = std::move(other.mTwoSided);
-
-        return *this;
-    }
-
-    virtual ~Material() {
-        // empty
-    }
+    virtual ~Material() = default;
 
     //! Name of the material
     std::string mName;

code/AssetLib/3DS/3DSLoader.cpp

@@ -3,7 +3,7 @@
 Open Asset Import Library (assimp)
 ---------------------------------------------------------------------------
 
-Copyright (c) 2006-2020, assimp team
+Copyright (c) 2006-2024, assimp team
 
 All rights reserved.
 
@@ -54,9 +54,9 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include <assimp/DefaultLogger.hpp>
 #include <assimp/IOSystem.hpp>
 
-using namespace Assimp;
+namespace Assimp {
 
-static const aiImporterDesc desc = {
+static constexpr aiImporterDesc desc = {
     "Discreet 3DS Importer",
     "",
     "",
@@ -103,28 +103,11 @@ Discreet3DSImporter::Discreet3DSImporter() :
     // empty
 }
 
-// ------------------------------------------------------------------------------------------------
-// Destructor, private as well
-Discreet3DSImporter::~Discreet3DSImporter() {
-    // empty
-}
-
 // ------------------------------------------------------------------------------------------------
 // Returns whether the class can handle the format of the given file.
-bool Discreet3DSImporter::CanRead(const std::string &pFile, IOSystem *pIOHandler, bool checkSig) const {
-    std::string extension = GetExtension(pFile);
-    if (extension == "3ds" || extension == "prj") {
-        return true;
-    }
-
-    if (!extension.length() || checkSig) {
-        uint16_t token[3];
-        token[0] = 0x4d4d;
-        token[1] = 0x3dc2;
-        //token[2] = 0x3daa;
-        return CheckMagicToken(pIOHandler, pFile, token, 2, 0, 2);
-    }
-    return false;
+bool Discreet3DSImporter::CanRead(const std::string &pFile, IOSystem *pIOHandler, bool /*checkSig*/) const {
+    static const uint16_t token[] = { 0x4d4d, 0x3dc2 /*, 0x3daa */ };
+    return CheckMagicToken(pIOHandler, pFile, token, AI_COUNT_OF(token), 0, sizeof token[0]);
 }
 
 // ------------------------------------------------------------------------------------------------
@@ -143,11 +126,17 @@ void Discreet3DSImporter::SetupProperties(const Importer * /*pImp*/) {
 // Imports the given file into the given scene structure.
 void Discreet3DSImporter::InternReadFile(const std::string &pFile,
         aiScene *pScene, IOSystem *pIOHandler) {
-    StreamReaderLE theStream(pIOHandler->Open(pFile, "rb"));
+
+    auto theFile = pIOHandler->Open(pFile, "rb");
+    if (!theFile) {
+        throw DeadlyImportError("3DS: Could not open ", pFile);
+    }
+
+    StreamReaderLE theStream(theFile);
 
     // We should have at least one chunk
     if (theStream.GetRemainingSize() < 16) {
-        throw DeadlyImportError("3DS file is either empty or corrupt: " + pFile);
+        throw DeadlyImportError("3DS file is either empty or corrupt: ", pFile);
     }
     this->stream = &theStream;
 
@@ -164,7 +153,7 @@ void Discreet3DSImporter::InternReadFile(const std::string &pFile,
     mRootNode->mHierarchyIndex = -1;
     mRootNode->mParent = nullptr;
     mMasterScale = 1.0f;
-    mBackgroundImage = "";
+    mBackgroundImage = std::string();
     bHasBG = false;
     bIsPrj = false;
 
@@ -178,7 +167,7 @@ void Discreet3DSImporter::InternReadFile(const std::string &pFile,
     // file.
     for (auto &mesh : mScene->mMeshes) {
         if (mesh.mFaces.size() > 0 && mesh.mPositions.size() == 0) {
-            throw DeadlyImportError("3DS file contains faces but no vertices: " + pFile);
+            throw DeadlyImportError("3DS file contains faces but no vertices: ", pFile);
         }
         CheckIndices(mesh);
         MakeUnique(mesh);
@@ -266,14 +255,22 @@ void Discreet3DSImporter::ParseMainChunk() {
 
     case Discreet3DS::CHUNK_PRJ:
         bIsPrj = true;
+        break;
     case Discreet3DS::CHUNK_MAIN:
         ParseEditorChunk();
         break;
     };
 
     ASSIMP_3DS_END_CHUNK();
+#if defined(__clang__)
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wunreachable-code-return"
+#endif
     // recursively continue processing this hierarchy level
     return ParseMainChunk();
+#if defined(__clang__)
+#pragma clang diagnostic pop
+#endif
 }
 
 // ------------------------------------------------------------------------------------------------
@@ -298,7 +295,7 @@ void Discreet3DSImporter::ParseEditorChunk() {
         // print the version number
         char buff[10];
         ASSIMP_itoa10(buff, stream->GetI2());
-        ASSIMP_LOG_INFO_F(std::string("3DS file format version: "), buff);
+        ASSIMP_LOG_INFO("3DS file format version: ", buff);
     } break;
     };
     ASSIMP_3DS_END_CHUNK();
@@ -323,7 +320,7 @@ void Discreet3DSImporter::ParseObjectChunk() {
     case Discreet3DS::CHUNK_MAT_MATERIAL:
 
         // Add a new material to the list
-        mScene->mMaterials.push_back(D3DS::Material(std::string("UNNAMED_" + to_string(mScene->mMaterials.size()))));
+        mScene->mMaterials.emplace_back(std::string("UNNAMED_" + ai_to_string(mScene->mMaterials.size())));
         ParseMaterialChunk();
         break;
 
@@ -368,13 +365,13 @@ void Discreet3DSImporter::ParseChunk(const char *name, unsigned int num) {
     // IMPLEMENTATION NOTE;
     // Cameras or lights define their transformation in their parent node and in the
     // corresponding light or camera chunks. However, we read and process the latter
-    // to to be able to return valid cameras/lights even if no scenegraph is given.
+    // to be able to return valid cameras/lights even if no scenegraph is given.
 
     // get chunk type
     switch (chunk.Flag) {
     case Discreet3DS::CHUNK_TRIMESH: {
         // this starts a new triangle mesh
-        mScene->mMeshes.push_back(D3DS::Mesh(std::string(name, num)));
+        mScene->mMeshes.emplace_back(std::string(name, num));
 
         // Read mesh chunks
         ParseMeshChunk();
@@ -442,7 +439,7 @@ void Discreet3DSImporter::ParseChunk(const char *name, unsigned int num) {
         // Read the lense angle
         camera->mHorizontalFOV = AI_DEG_TO_RAD(stream->GetF4());
         if (camera->mHorizontalFOV < 0.001f) {
-            camera->mHorizontalFOV = AI_DEG_TO_RAD(45.f);
+            camera->mHorizontalFOV = float(AI_DEG_TO_RAD(45.f));
         }
 
         // Now check for further subchunks
@@ -927,7 +924,7 @@ void Discreet3DSImporter::ParseFaceChunk() {
             }
         }
         if (0xcdcdcdcd == idx) {
-            ASSIMP_LOG_ERROR_F("3DS: Unknown material: ", sz);
+            ASSIMP_LOG_ERROR("3DS: Unknown material: ", sz);
         }
 
         // Now continue and read all material indices
@@ -1003,7 +1000,7 @@ void Discreet3DSImporter::ParseMeshChunk() {
         mMesh.mFaces.reserve(num);
         while (num-- > 0) {
             // 3DS faces are ALWAYS triangles
-            mMesh.mFaces.push_back(D3DS::Face());
+            mMesh.mFaces.emplace_back();
             D3DS::Face &sFace = mMesh.mFaces.back();
 
             sFace.mIndices[0] = (uint16_t)stream->GetI2();
@@ -1288,7 +1285,7 @@ void Discreet3DSImporter::ParseColorChunk(aiColor3D *out, bool acceptPercent) {
     switch (chunk.Flag) {
     case Discreet3DS::CHUNK_LINRGBF:
         bGamma = true;
-
+    // fallthrough
     case Discreet3DS::CHUNK_RGBF:
         if (sizeof(float) * 3 > diff) {
             *out = clrError;
@@ -1301,6 +1298,7 @@ void Discreet3DSImporter::ParseColorChunk(aiColor3D *out, bool acceptPercent) {
 
     case Discreet3DS::CHUNK_LINRGBB:
         bGamma = true;
+            // fallthrough
     case Discreet3DS::CHUNK_RGBB: {
         if (sizeof(char) * 3 > diff) {
             *out = clrError;
@@ -1337,4 +1335,6 @@ void Discreet3DSImporter::ParseColorChunk(aiColor3D *out, bool acceptPercent) {
     (void)bGamma;
 }
 
+} // namespace Assimp
+
 #endif // !! ASSIMP_BUILD_NO_3DS_IMPORTER

code/AssetLib/3DS/3DSLoader.h

@@ -3,7 +3,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2020, assimp team
+Copyright (c) 2006-2024, assimp team
 
 
 All rights reserved.
@@ -46,11 +46,11 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 #ifndef AI_3DSIMPORTER_H_INC
 #define AI_3DSIMPORTER_H_INC
+#ifndef ASSIMP_BUILD_NO_3DS_IMPORTER
 
 #include <assimp/BaseImporter.h>
 #include <assimp/types.h>
 
-#ifndef ASSIMP_BUILD_NO_3DS_IMPORTER
 
 #include "3DSHelper.h"
 #include <assimp/StreamReader.h>
@@ -59,7 +59,6 @@ struct aiNode;
 
 namespace Assimp    {
 
-
 using namespace D3DS;
 
 // ---------------------------------------------------------------------------------
@@ -68,21 +67,21 @@ using namespace D3DS;
 class Discreet3DSImporter : public BaseImporter {
 public:
     Discreet3DSImporter();
-    ~Discreet3DSImporter();
+    ~Discreet3DSImporter() override = default;
 
     // -------------------------------------------------------------------
     /** Returns whether the class can handle the format of the given file.
      * See BaseImporter::CanRead() for details.
      */
     bool CanRead( const std::string& pFile, IOSystem* pIOHandler,
-        bool checkSig) const;
+        bool checkSig) const override;
 
     // -------------------------------------------------------------------
     /** Called prior to ReadFile().
      * The function is a request to the importer to update its configuration
      * basing on the Importer's configuration property list.
      */
-    void SetupProperties(const Importer* pImp);
+    void SetupProperties(const Importer* pImp) override;
 
 protected:
 
@@ -90,14 +89,14 @@ protected:
     /** Return importer meta information.
      * See #BaseImporter::GetInfo for the details
      */
-    const aiImporterDesc* GetInfo () const;
+    const aiImporterDesc* GetInfo () const override;
 
     // -------------------------------------------------------------------
     /** Imports the given file into the given scene structure.
      * See BaseImporter::InternReadFile() for details
      */
     void InternReadFile( const std::string& pFile, aiScene* pScene,
-        IOSystem* pIOHandler);
+        IOSystem* pIOHandler) override;
 
     // -------------------------------------------------------------------
     /** Converts a temporary material to the outer representation
@@ -208,6 +207,15 @@ protected:
     */
     void ReplaceDefaultMaterial();
 
+    bool ContainsTextures(unsigned int i) const {
+        return !mScene->mMaterials[i].sTexDiffuse.mMapName.empty() ||
+               !mScene->mMaterials[i].sTexBump.mMapName.empty() ||
+               !mScene->mMaterials[i].sTexOpacity.mMapName.empty() ||
+               !mScene->mMaterials[i].sTexEmissive.mMapName.empty() ||
+               !mScene->mMaterials[i].sTexSpecular.mMapName.empty() ||
+               !mScene->mMaterials[i].sTexShininess.mMapName.empty() ;
+    }
+
     // -------------------------------------------------------------------
     /** Convert the whole scene
     */

code/AssetLib/3MF/3MFTypes.h

@@ -0,0 +1,179 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2024, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+#pragma once
+
+#include <assimp/vector3.h>
+#include <assimp/matrix4x4.h>
+#include <assimp/ParsingUtils.h>
+#include <vector>
+#include <string>
+
+struct aiMaterial;
+struct aiMesh;
+
+namespace Assimp {
+namespace D3MF {
+
+enum class ResourceType {
+    RT_Object,
+    RT_BaseMaterials,
+    RT_EmbeddedTexture2D,
+    RT_Texture2DGroup,
+    RT_ColorGroup,
+    RT_Unknown
+}; // To be extended with other resource types (eg. material extension resources like Texture2d, Texture2dGroup...)
+
+class Resource {
+public:
+    int mId;
+
+    Resource(int id) :
+            mId(id) {
+        // empty
+    }
+
+    virtual ~Resource() = default;
+
+    virtual ResourceType getType() const {
+        return ResourceType::RT_Unknown;
+    }
+};
+
+class EmbeddedTexture : public Resource {
+public:
+    std::string mPath;
+    std::string mContentType;
+    std::string mTilestyleU;
+    std::string mTilestyleV;
+    std::vector<char> mBuffer;
+
+    EmbeddedTexture(int id) :
+            Resource(id),
+            mPath(),
+            mContentType(),
+            mTilestyleU(),
+            mTilestyleV() {
+        // empty
+    }
+
+    ~EmbeddedTexture() override = default;
+
+    ResourceType getType() const override {
+        return ResourceType::RT_EmbeddedTexture2D;
+    }
+};
+
+class Texture2DGroup : public Resource {
+public:
+    std::vector<aiVector2D> mTex2dCoords;
+    int mTexId;
+    Texture2DGroup(int id) :
+            Resource(id),
+            mTexId(-1) {
+        // empty
+    }
+
+    ~Texture2DGroup() override = default;
+
+    ResourceType getType() const override {
+        return ResourceType::RT_Texture2DGroup;
+    }
+};
+
+class ColorGroup : public Resource {
+public:
+    std::vector<aiColor4D> mColors;
+    ColorGroup(int id) :
+            Resource(id){
+        // empty
+    }
+
+    ~ColorGroup() override = default;
+
+    ResourceType getType() const override {
+        return ResourceType::RT_ColorGroup;
+    }
+};
+
+class BaseMaterials : public Resource {
+public:
+    std::vector<unsigned int> mMaterialIndex;
+
+    BaseMaterials(int id) :
+            Resource(id),
+            mMaterialIndex() {
+        // empty
+    }
+
+    ~BaseMaterials() override = default;
+
+    ResourceType getType() const override {
+        return ResourceType::RT_BaseMaterials;
+    }
+};
+
+struct Component {
+    int mObjectId;
+    aiMatrix4x4 mTransformation;
+};
+
+class Object : public Resource {
+public:
+    std::vector<aiMesh *> mMeshes;
+    std::vector<unsigned int> mMeshIndex;
+    std::vector<Component> mComponents;
+    std::string mName;
+
+    Object(int id) :
+            Resource(id),
+            mName(std::string("Object_") + ai_to_string(id)) {
+        // empty
+    }
+
+    ~Object() override = default;
+
+    ResourceType getType() const override {
+        return ResourceType::RT_Object;
+    }
+};
+
+} // namespace D3MF
+} // namespace Assimp

code/AssetLib/3MF/3MFXmlTags.h

@@ -2,8 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2020, assimp team
-
+Copyright (c) 2006-2024, assimp team
 
 All rights reserved.
 
@@ -45,59 +44,80 @@ namespace Assimp {
 namespace D3MF {
 
 namespace XmlTag {
+    // Root tag
+    const char* const RootTag = "3MF";
+
     // Meta-data
-    static const std::string meta = "metadata";
-    static const std::string meta_name = "name";
+    const char* const meta = "metadata";
+    const char* const meta_name = "name";
 
     // Model-data specific tags
-    static const std::string model = "model";
-    static const std::string model_unit = "unit";
-    static const std::string metadata = "metadata";
-    static const std::string resources = "resources";
-    static const std::string object = "object";
-    static const std::string mesh = "mesh";
-    static const std::string vertices = "vertices";
-    static const std::string vertex = "vertex";
-    static const std::string triangles = "triangles";
-    static const std::string triangle = "triangle";
-    static const std::string x = "x";
-    static const std::string y = "y";
-    static const std::string z = "z";
-    static const std::string v1 = "v1";
-    static const std::string v2 = "v2";
-    static const std::string v3 = "v3";
-    static const std::string id = "id";
-    static const std::string pid = "pid";
-    static const std::string p1 = "p1";
-    static const std::string name = "name";
-    static const std::string type = "type";
-    static const std::string build = "build";
-    static const std::string item = "item";
-    static const std::string objectid = "objectid";
-    static const std::string transform = "transform";
+    const char* const model = "model";
+    const char* const model_unit = "unit";
+    const char* const metadata = "metadata";
+    const char* const resources = "resources";
+    const char* const object = "object";
+    const char* const mesh = "mesh";
+    const char* const components = "components";
+    const char* const component = "component";
+    const char* const vertices = "vertices";
+    const char* const vertex = "vertex";
+    const char* const triangles = "triangles";
+    const char* const triangle = "triangle";
+    const char* const x = "x";
+    const char* const y = "y";
+    const char* const z = "z";
+    const char* const v1 = "v1";
+    const char* const v2 = "v2";
+    const char* const v3 = "v3";
+    const char* const id = "id";
+    const char* const pid = "pid";
+    const char* const pindex = "pindex";
+    const char* const p1 = "p1";
+    const char *const p2 = "p2";
+    const char *const p3 = "p3";
+    const char* const name = "name";
+    const char* const type = "type";
+    const char* const build = "build";
+    const char* const item = "item";
+    const char* const objectid = "objectid";
+    const char* const transform = "transform";
+    const char *const path = "path";
 
     // Material definitions
-    static const std::string basematerials = "basematerials";
-    static const std::string basematerials_id = "id";
-    static const std::string basematerials_base = "base";
-    static const std::string basematerials_name = "name";
-    static const std::string basematerials_displaycolor = "displaycolor";
+    const char* const basematerials = "basematerials";
+    const char* const basematerials_base = "base";
+    const char* const basematerials_name = "name";
+    const char* const basematerials_displaycolor = "displaycolor";
+    const char* const texture_2d = "m:texture2d";
+    const char *const texture_group = "m:texture2dgroup";
+    const char *const texture_content_type = "contenttype";
+    const char *const texture_tilestyleu = "tilestyleu";
+    const char *const texture_tilestylev = "tilestylev";
+    const char *const texture_2d_coord = "m:tex2coord";
+    const char *const texture_cuurd_u = "u";
+    const char *const texture_cuurd_v = "v";
+
+    // vertex color definitions
+    const char *const colorgroup = "m:colorgroup";
+    const char *const color_item = "m:color";
+    const char *const color_vaule = "color";
 
     // Meta info tags
-    static const std::string CONTENT_TYPES_ARCHIVE = "[Content_Types].xml";
-    static const std::string ROOT_RELATIONSHIPS_ARCHIVE = "_rels/.rels";
-    static const std::string SCHEMA_CONTENTTYPES = "http://schemas.openxmlformats.org/package/2006/content-types";
-    static const std::string SCHEMA_RELATIONSHIPS = "http://schemas.openxmlformats.org/package/2006/relationships";
-    static const std::string RELS_RELATIONSHIP_CONTAINER = "Relationships";
-    static const std::string RELS_RELATIONSHIP_NODE = "Relationship";
-    static const std::string RELS_ATTRIB_TARGET = "Target";
-    static const std::string RELS_ATTRIB_TYPE = "Type";
-    static const std::string RELS_ATTRIB_ID = "Id";
-    static const std::string PACKAGE_START_PART_RELATIONSHIP_TYPE = "http://schemas.microsoft.com/3dmanufacturing/2013/01/3dmodel";
-    static const std::string PACKAGE_PRINT_TICKET_RELATIONSHIP_TYPE = "http://schemas.microsoft.com/3dmanufacturing/2013/01/printticket";
-    static const std::string PACKAGE_TEXTURE_RELATIONSHIP_TYPE = "http://schemas.microsoft.com/3dmanufacturing/2013/01/3dtexture";
-    static const std::string PACKAGE_CORE_PROPERTIES_RELATIONSHIP_TYPE = "http://schemas.openxmlformats.org/package/2006/relationships/metadata/core-properties";
-    static const std::string PACKAGE_THUMBNAIL_RELATIONSHIP_TYPE = "http://schemas.openxmlformats.org/package/2006/relationships/metadata/thumbnail";
+    const char* const CONTENT_TYPES_ARCHIVE = "[Content_Types].xml";
+    const char* const ROOT_RELATIONSHIPS_ARCHIVE = "_rels/.rels";
+    const char* const SCHEMA_CONTENTTYPES = "http://schemas.openxmlformats.org/package/2006/content-types";
+    const char* const SCHEMA_RELATIONSHIPS = "http://schemas.openxmlformats.org/package/2006/relationships";
+    const char* const RELS_RELATIONSHIP_CONTAINER = "Relationships";
+    const char* const RELS_RELATIONSHIP_NODE = "Relationship";
+    const char* const RELS_ATTRIB_TARGET = "Target";
+    const char* const RELS_ATTRIB_TYPE = "Type";
+    const char* const RELS_ATTRIB_ID = "Id";
+    const char* const PACKAGE_START_PART_RELATIONSHIP_TYPE = "http://schemas.microsoft.com/3dmanufacturing/2013/01/3dmodel";
+    const char* const PACKAGE_PRINT_TICKET_RELATIONSHIP_TYPE = "http://schemas.microsoft.com/3dmanufacturing/2013/01/printticket";
+    const char* const PACKAGE_TEXTURE_RELATIONSHIP_TYPE = "http://schemas.microsoft.com/3dmanufacturing/2013/01/3dtexture";
+    const char* const PACKAGE_CORE_PROPERTIES_RELATIONSHIP_TYPE = "http://schemas.openxmlformats.org/package/2006/relationships/metadata/core-properties";
+    const char* const PACKAGE_THUMBNAIL_RELATIONSHIP_TYPE = "http://schemas.openxmlformats.org/package/2006/relationships/metadata/thumbnail";
 }
 
 } // Namespace D3MF

code/AssetLib/3MF/D3MFExporter.cpp

@@ -2,8 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2020, assimp team
-
+Copyright (c) 2006-2024, assimp team
 
 All rights reserved.
 
@@ -84,7 +83,7 @@ void ExportScene3MF(const char *pFile, IOSystem *pIOSystem, const aiScene *pScen
 namespace D3MF {
 
 D3MFExporter::D3MFExporter(const char *pFile, const aiScene *pScene) :
-        mArchiveName(pFile), m_zipArchive(nullptr), mScene(pScene), mModelOutput(), mRelOutput(), mContentOutput(), mBuildItems(), mRelations() {
+        mArchiveName(pFile), m_zipArchive(nullptr), mScene(pScene) {
     // empty
 }
 
@@ -138,7 +137,7 @@ bool D3MFExporter::exportContentTypes() {
     mContentOutput << std::endl;
     mContentOutput << "</Types>";
     mContentOutput << std::endl;
-    exportContentTyp(XmlTag::CONTENT_TYPES_ARCHIVE);
+    zipContentType(XmlTag::CONTENT_TYPES_ARCHIVE);
 
     return true;
 }
@@ -163,7 +162,7 @@ bool D3MFExporter::exportRelations() {
     mRelOutput << "</Relationships>";
     mRelOutput << std::endl;
 
-    writeRelInfoToFile("_rels", ".rels");
+    zipRelInfo("_rels", ".rels");
     mRelOutput.flush();
 
     return true;
@@ -197,7 +196,7 @@ bool D3MFExporter::export3DModel() {
     info->type = XmlTag::PACKAGE_START_PART_RELATIONSHIP_TYPE;
     mRelations.push_back(info);
 
-    writeModelToArchive("3D", "3DModel.model");
+    zipModel("3D", "3DModel.model");
     mModelOutput.flush();
 
     return true;
@@ -238,7 +237,7 @@ void D3MFExporter::writeBaseMaterials() {
         aiMaterial *mat = mScene->mMaterials[i];
         aiString name;
         if (mat->Get(AI_MATKEY_NAME, name) != aiReturn_SUCCESS) {
-            strName = "basemat_" + to_string(i);
+            strName = "basemat_" + ai_to_string(i);
         } else {
             strName = name.C_Str();
         }
@@ -249,22 +248,22 @@ void D3MFExporter::writeBaseMaterials() {
             // rgbs %
             if (color.r <= 1 && color.g <= 1 && color.b <= 1 && color.a <= 1) {
 
-                hexDiffuseColor = Rgba2Hex(
-                        (int)((ai_real)color.r) * 255,
-                        (int)((ai_real)color.g) * 255,
-                        (int)((ai_real)color.b) * 255,
-                        (int)((ai_real)color.a) * 255,
+                hexDiffuseColor = ai_rgba2hex(
+                        (int)(((ai_real)color.r) * 255),
+                        (int)(((ai_real)color.g) * 255),
+                        (int)(((ai_real)color.b) * 255),
+                        (int)(((ai_real)color.a) * 255),
                         true);
 
             } else {
                 hexDiffuseColor = "#";
-                tmp = DecimalToHexa((ai_real)color.r);
+                tmp = ai_decimal_to_hexa((ai_real)color.r);
                 hexDiffuseColor += tmp;
-                tmp = DecimalToHexa((ai_real)color.g);
+                tmp = ai_decimal_to_hexa((ai_real)color.g);
                 hexDiffuseColor += tmp;
-                tmp = DecimalToHexa((ai_real)color.b);
+                tmp = ai_decimal_to_hexa((ai_real)color.b);
                 hexDiffuseColor += tmp;
-                tmp = DecimalToHexa((ai_real)color.a);
+                tmp = ai_decimal_to_hexa((ai_real)color.a);
                 hexDiffuseColor += tmp;
             }
         } else {
@@ -308,18 +307,26 @@ void D3MFExporter::writeMesh(aiMesh *mesh) {
         return;
     }
 
-    mModelOutput << "<" << XmlTag::mesh << ">" << std::endl;
-    mModelOutput << "<" << XmlTag::vertices << ">" << std::endl;
+    mModelOutput << "<"
+                 << XmlTag::mesh
+                 << ">" << "\n";
+    mModelOutput << "<"
+                 << XmlTag::vertices
+                 << ">" << "\n";
     for (unsigned int i = 0; i < mesh->mNumVertices; ++i) {
         writeVertex(mesh->mVertices[i]);
     }
-    mModelOutput << "</" << XmlTag::vertices << ">" << std::endl;
+    mModelOutput << "</"
+                 << XmlTag::vertices << ">"
+                 << "\n";
 
     const unsigned int matIdx(mesh->mMaterialIndex);
 
     writeFaces(mesh, matIdx);
 
-    mModelOutput << "</" << XmlTag::mesh << ">" << std::endl;
+    mModelOutput << "</"
+                 << XmlTag::mesh << ">"
+                 << "\n";
 }
 
 void D3MFExporter::writeVertex(const aiVector3D &pos) {
@@ -335,65 +342,57 @@ void D3MFExporter::writeFaces(aiMesh *mesh, unsigned int matIdx) {
     if (!mesh->HasFaces()) {
         return;
     }
-    mModelOutput << "<" << XmlTag::triangles << ">" << std::endl;
+    mModelOutput << "<"
+                 << XmlTag::triangles << ">"
+                 << "\n";
     for (unsigned int i = 0; i < mesh->mNumFaces; ++i) {
         aiFace &currentFace = mesh->mFaces[i];
         mModelOutput << "<" << XmlTag::triangle << " v1=\"" << currentFace.mIndices[0] << "\" v2=\""
                      << currentFace.mIndices[1] << "\" v3=\"" << currentFace.mIndices[2]
-                     << "\" pid=\"1\" p1=\"" + to_string(matIdx) + "\" />";
-        mModelOutput << std::endl;
+                     << "\" pid=\"1\" p1=\"" + ai_to_string(matIdx) + "\" />";
+        mModelOutput << "\n";
     }
-    mModelOutput << "</" << XmlTag::triangles << ">";
-    mModelOutput << std::endl;
+    mModelOutput << "</"
+                 << XmlTag::triangles
+                 << ">";
+    mModelOutput << "\n";
 }
 
 void D3MFExporter::writeBuild() {
-    mModelOutput << "<" << XmlTag::build << ">" << std::endl;
+    mModelOutput << "<"
+                 << XmlTag::build
+                 << ">"
+                 << "\n";
 
     for (size_t i = 0; i < mBuildItems.size(); ++i) {
         mModelOutput << "<" << XmlTag::item << " objectid=\"" << i + 2 << "\"/>";
-        mModelOutput << std::endl;
+        mModelOutput << "\n";
     }
     mModelOutput << "</" << XmlTag::build << ">";
-    mModelOutput << std::endl;
+    mModelOutput << "\n";
 }
 
-void D3MFExporter::exportContentTyp(const std::string &filename) {
-    if (nullptr == m_zipArchive) {
-        throw DeadlyExportError("3MF-Export: Zip archive not valid, nullptr.");
-    }
-    const std::string entry = filename;
-    zip_entry_open(m_zipArchive, entry.c_str());
-
-    const std::string &exportTxt(mContentOutput.str());
-    zip_entry_write(m_zipArchive, exportTxt.c_str(), exportTxt.size());
-
-    zip_entry_close(m_zipArchive);
+void D3MFExporter::zipContentType(const std::string &filename) {
+    addFileInZip(filename, mContentOutput.str());
 }
 
-void D3MFExporter::writeModelToArchive(const std::string &folder, const std::string &modelName) {
-    if (nullptr == m_zipArchive) {
-        throw DeadlyExportError("3MF-Export: Zip archive not valid, nullptr.");
-    }
+void D3MFExporter::zipModel(const std::string &folder, const std::string &modelName) {
     const std::string entry = folder + "/" + modelName;
-    zip_entry_open(m_zipArchive, entry.c_str());
-
-    const std::string &exportTxt(mModelOutput.str());
-    zip_entry_write(m_zipArchive, exportTxt.c_str(), exportTxt.size());
-
-    zip_entry_close(m_zipArchive);
+    addFileInZip(entry, mModelOutput.str());
 }
 
-void D3MFExporter::writeRelInfoToFile(const std::string &folder, const std::string &relName) {
+void D3MFExporter::zipRelInfo(const std::string &folder, const std::string &relName) {
+    const std::string entry = folder + "/" + relName;
+    addFileInZip(entry, mRelOutput.str());
+}
+
+void D3MFExporter::addFileInZip(const std::string& entry, const std::string& content) {
     if (nullptr == m_zipArchive) {
         throw DeadlyExportError("3MF-Export: Zip archive not valid, nullptr.");
     }
-    const std::string entry = folder + "/" + relName;
+
     zip_entry_open(m_zipArchive, entry.c_str());
-
-    const std::string &exportTxt(mRelOutput.str());
-    zip_entry_write(m_zipArchive, exportTxt.c_str(), exportTxt.size());
-
+    zip_entry_write(m_zipArchive, content.c_str(), content.size());
     zip_entry_close(m_zipArchive);
 }
 

code/AssetLib/3MF/D3MFExporter.h

@@ -2,8 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2020, assimp team
-
+Copyright (c) 2006-2024, assimp team
 
 All rights reserved.
 
@@ -41,6 +40,9 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 #pragma once
 
+#ifndef ASSIMP_BUILD_NO_EXPORT
+#ifndef ASSIMP_BUILD_NO_3MF_EXPORTER
+
 #include <memory>
 #include <sstream>
 #include <vector>
@@ -59,8 +61,6 @@ class IOStream;
 
 namespace D3MF {
 
-#ifndef ASSIMP_BUILD_NO_EXPORT
-#ifndef ASSIMP_BUILD_NO_3MF_EXPORTER
 
 struct OpcPackageRelationship;
 
@@ -83,9 +83,12 @@ protected:
     void writeVertex( const aiVector3D &pos );
     void writeFaces( aiMesh *mesh, unsigned int matIdx );
     void writeBuild();
-    void exportContentTyp( const std::string &filename );
-    void writeModelToArchive( const std::string &folder, const std::string &modelName );
-    void writeRelInfoToFile( const std::string &folder, const std::string &relName );
+
+    // Zip the data
+    void zipContentType( const std::string &filename );
+    void zipModel( const std::string &folder, const std::string &modelName );
+    void zipRelInfo( const std::string &folder, const std::string &relName );
+    void addFileInZip( const std::string &entry, const std::string &content );
 
 private:
     std::string mArchiveName;
@@ -98,9 +101,11 @@ private:
     std::vector<OpcPackageRelationship*> mRelations;
 };
 
-#endif // ASSIMP_BUILD_NO_3MF_EXPORTER
-#endif // ASSIMP_BUILD_NO_EXPORT
 
 } // Namespace D3MF
 } // Namespace Assimp
 
+#endif // ASSIMP_BUILD_NO_3MF_EXPORTER
+#endif // ASSIMP_BUILD_NO_EXPORT
+
+

code/AssetLib/3MF/D3MFImporter.cpp

@@ -2,8 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2020, assimp team
-
+Copyright (c) 2006-2024, assimp team
 
 All rights reserved.
 
@@ -43,381 +42,33 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #ifndef ASSIMP_BUILD_NO_3MF_IMPORTER
 
 #include "D3MFImporter.h"
+#include "3MFXmlTags.h"
+#include "D3MFOpcPackage.h"
+#include "XmlSerializer.h"
 
 #include <assimp/StringComparison.h>
 #include <assimp/StringUtils.h>
+#include <assimp/XmlParser.h>
 #include <assimp/ZipArchiveIOSystem.h>
 #include <assimp/importerdesc.h>
 #include <assimp/scene.h>
 #include <assimp/DefaultLogger.hpp>
 #include <assimp/IOSystem.hpp>
+#include <assimp/fast_atof.h>
 
 #include <cassert>
 #include <map>
 #include <memory>
 #include <string>
 #include <vector>
-
-#include "3MFXmlTags.h"
-#include "D3MFOpcPackage.h"
-#include <assimp/fast_atof.h>
-#include <assimp/irrXMLWrapper.h>
-
 #include <iomanip>
+#include <cstring>
 
 namespace Assimp {
-namespace D3MF {
 
-class XmlSerializer {
-public:
-    using MatArray = std::vector<aiMaterial *>;
-    using MatId2MatArray = std::map<unsigned int, std::vector<unsigned int>>;
+using namespace D3MF;
 
-    XmlSerializer(XmlReader *xmlReader) :
-            mMeshes(),
-            mMatArray(),
-            mActiveMatGroup(99999999),
-            mMatId2MatArray(),
-            xmlReader(xmlReader) {
-        // empty
-    }
-
-    ~XmlSerializer() {
-        // empty
-    }
-
-    void ImportXml(aiScene *scene) {
-        if (nullptr == scene) {
-            return;
-        }
-
-        scene->mRootNode = new aiNode();
-        std::vector<aiNode *> children;
-
-        std::string nodeName;
-        while (ReadToEndElement(D3MF::XmlTag::model)) {
-            nodeName = xmlReader->getNodeName();
-            if (nodeName == D3MF::XmlTag::object) {
-                children.push_back(ReadObject(scene));
-            } else if (nodeName == D3MF::XmlTag::build) {
-                //
-            } else if (nodeName == D3MF::XmlTag::basematerials) {
-                ReadBaseMaterials();
-            } else if (nodeName == D3MF::XmlTag::meta) {
-                ReadMetadata();
-            }
-        }
-
-        if (scene->mRootNode->mName.length == 0) {
-            scene->mRootNode->mName.Set("3MF");
-        }
-
-        // import the metadata
-        if (!mMetaData.empty()) {
-            const size_t numMeta(mMetaData.size());
-            scene->mMetaData = aiMetadata::Alloc(static_cast<unsigned int>(numMeta));
-            for (size_t i = 0; i < numMeta; ++i) {
-                aiString val(mMetaData[i].value);
-                scene->mMetaData->Set(static_cast<unsigned int>(i), mMetaData[i].name, val);
-            }
-        }
-
-        // import the meshes
-        scene->mNumMeshes = static_cast<unsigned int>(mMeshes.size());
-        scene->mMeshes = new aiMesh *[scene->mNumMeshes]();
-        std::copy(mMeshes.begin(), mMeshes.end(), scene->mMeshes);
-
-        // import the materials
-        scene->mNumMaterials = static_cast<unsigned int>(mMatArray.size());
-        if (0 != scene->mNumMaterials) {
-            scene->mMaterials = new aiMaterial *[scene->mNumMaterials];
-            std::copy(mMatArray.begin(), mMatArray.end(), scene->mMaterials);
-        }
-
-        // create the scenegraph
-        scene->mRootNode->mNumChildren = static_cast<unsigned int>(children.size());
-        scene->mRootNode->mChildren = new aiNode *[scene->mRootNode->mNumChildren]();
-        std::copy(children.begin(), children.end(), scene->mRootNode->mChildren);
-    }
-
-private:
-    aiNode *ReadObject(aiScene *scene) {
-        std::unique_ptr<aiNode> node(new aiNode());
-
-        std::vector<unsigned long> meshIds;
-
-        const char *attrib(nullptr);
-        std::string name, type;
-        attrib = xmlReader->getAttributeValue(D3MF::XmlTag::id.c_str());
-        if (nullptr != attrib) {
-            name = attrib;
-        }
-        attrib = xmlReader->getAttributeValue(D3MF::XmlTag::type.c_str());
-        if (nullptr != attrib) {
-            type = attrib;
-        }
-
-        node->mParent = scene->mRootNode;
-        node->mName.Set(name);
-
-        size_t meshIdx = mMeshes.size();
-
-        while (ReadToEndElement(D3MF::XmlTag::object)) {
-            if (xmlReader->getNodeName() == D3MF::XmlTag::mesh) {
-                auto mesh = ReadMesh();
-
-                mesh->mName.Set(name);
-                mMeshes.push_back(mesh);
-                meshIds.push_back(static_cast<unsigned long>(meshIdx));
-                ++meshIdx;
-            }
-        }
-
-        node->mNumMeshes = static_cast<unsigned int>(meshIds.size());
-
-        node->mMeshes = new unsigned int[node->mNumMeshes];
-
-        std::copy(meshIds.begin(), meshIds.end(), node->mMeshes);
-
-        return node.release();
-    }
-
-    aiMesh *ReadMesh() {
-        aiMesh *mesh = new aiMesh();
-        while (ReadToEndElement(D3MF::XmlTag::mesh)) {
-            if (xmlReader->getNodeName() == D3MF::XmlTag::vertices) {
-                ImportVertices(mesh);
-            } else if (xmlReader->getNodeName() == D3MF::XmlTag::triangles) {
-                ImportTriangles(mesh);
-            }
-        }
-
-        return mesh;
-    }
-
-    void ReadMetadata() {
-        const std::string name = xmlReader->getAttributeValue(D3MF::XmlTag::meta_name.c_str());
-        xmlReader->read();
-        const std::string value = xmlReader->getNodeData();
-
-        if (name.empty()) {
-            return;
-        }
-
-        MetaEntry entry;
-        entry.name = name;
-        entry.value = value;
-        mMetaData.push_back(entry);
-    }
-
-    void ImportVertices(aiMesh *mesh) {
-        std::vector<aiVector3D> vertices;
-        while (ReadToEndElement(D3MF::XmlTag::vertices)) {
-            if (xmlReader->getNodeName() == D3MF::XmlTag::vertex) {
-                vertices.push_back(ReadVertex());
-            }
-        }
-        mesh->mNumVertices = static_cast<unsigned int>(vertices.size());
-        mesh->mVertices = new aiVector3D[mesh->mNumVertices];
-
-        std::copy(vertices.begin(), vertices.end(), mesh->mVertices);
-    }
-
-    aiVector3D ReadVertex() {
-        aiVector3D vertex;
-
-        vertex.x = ai_strtof(xmlReader->getAttributeValue(D3MF::XmlTag::x.c_str()), nullptr);
-        vertex.y = ai_strtof(xmlReader->getAttributeValue(D3MF::XmlTag::y.c_str()), nullptr);
-        vertex.z = ai_strtof(xmlReader->getAttributeValue(D3MF::XmlTag::z.c_str()), nullptr);
-
-        return vertex;
-    }
-
-    void ImportTriangles(aiMesh *mesh) {
-        std::vector<aiFace> faces;
-
-        while (ReadToEndElement(D3MF::XmlTag::triangles)) {
-            const std::string nodeName(xmlReader->getNodeName());
-            if (xmlReader->getNodeName() == D3MF::XmlTag::triangle) {
-                faces.push_back(ReadTriangle());
-                const char *pidToken(xmlReader->getAttributeValue(D3MF::XmlTag::p1.c_str()));
-                if (nullptr != pidToken) {
-                    int matIdx(std::atoi(pidToken));
-                    mesh->mMaterialIndex = matIdx;
-                }
-            }
-        }
-
-        mesh->mNumFaces = static_cast<unsigned int>(faces.size());
-        mesh->mFaces = new aiFace[mesh->mNumFaces];
-        mesh->mPrimitiveTypes = aiPrimitiveType_TRIANGLE;
-
-        std::copy(faces.begin(), faces.end(), mesh->mFaces);
-    }
-
-    aiFace ReadTriangle() {
-        aiFace face;
-
-        face.mNumIndices = 3;
-        face.mIndices = new unsigned int[face.mNumIndices];
-        face.mIndices[0] = static_cast<unsigned int>(std::atoi(xmlReader->getAttributeValue(D3MF::XmlTag::v1.c_str())));
-        face.mIndices[1] = static_cast<unsigned int>(std::atoi(xmlReader->getAttributeValue(D3MF::XmlTag::v2.c_str())));
-        face.mIndices[2] = static_cast<unsigned int>(std::atoi(xmlReader->getAttributeValue(D3MF::XmlTag::v3.c_str())));
-
-        return face;
-    }
-
-    void ReadBaseMaterials() {
-        std::vector<unsigned int> MatIdArray;
-        const char *baseMaterialId(xmlReader->getAttributeValue(D3MF::XmlTag::basematerials_id.c_str()));
-        if (nullptr != baseMaterialId) {
-            unsigned int id = std::atoi(baseMaterialId);
-            const size_t newMatIdx(mMatArray.size());
-            if (id != mActiveMatGroup) {
-                mActiveMatGroup = id;
-                MatId2MatArray::const_iterator it(mMatId2MatArray.find(id));
-                if (mMatId2MatArray.end() == it) {
-                    MatIdArray.clear();
-                    mMatId2MatArray[id] = MatIdArray;
-                } else {
-                    MatIdArray = it->second;
-                }
-            }
-            MatIdArray.push_back(static_cast<unsigned int>(newMatIdx));
-            mMatId2MatArray[mActiveMatGroup] = MatIdArray;
-        }
-
-        while (ReadToEndElement(D3MF::XmlTag::basematerials)) {
-            mMatArray.push_back(readMaterialDef());
-        }
-    }
-
-    bool parseColor(const char *color, aiColor4D &diffuse) {
-        if (nullptr == color) {
-            return false;
-        }
-
-        //format of the color string: #RRGGBBAA or #RRGGBB (3MF Core chapter 5.1.1)
-        const size_t len(strlen(color));
-        if (9 != len && 7 != len) {
-            return false;
-        }
-
-        const char *buf(color);
-        if ('#' != *buf) {
-            return false;
-        }
-        ++buf;
-        char comp[3] = { 0, 0, '\0' };
-
-        comp[0] = *buf;
-        ++buf;
-        comp[1] = *buf;
-        ++buf;
-        diffuse.r = static_cast<ai_real>(strtol(comp, nullptr, 16)) / ai_real(255.0);
-
-        comp[0] = *buf;
-        ++buf;
-        comp[1] = *buf;
-        ++buf;
-        diffuse.g = static_cast<ai_real>(strtol(comp, nullptr, 16)) / ai_real(255.0);
-
-        comp[0] = *buf;
-        ++buf;
-        comp[1] = *buf;
-        ++buf;
-        diffuse.b = static_cast<ai_real>(strtol(comp, nullptr, 16)) / ai_real(255.0);
-
-        if (7 == len)
-            return true;
-        comp[0] = *buf;
-        ++buf;
-        comp[1] = *buf;
-        ++buf;
-        diffuse.a = static_cast<ai_real>(strtol(comp, nullptr, 16)) / ai_real(255.0);
-
-        return true;
-    }
-
-    void assignDiffuseColor(aiMaterial *mat) {
-        const char *color = xmlReader->getAttributeValue(D3MF::XmlTag::basematerials_displaycolor.c_str());
-        aiColor4D diffuse;
-        if (parseColor(color, diffuse)) {
-            mat->AddProperty<aiColor4D>(&diffuse, 1, AI_MATKEY_COLOR_DIFFUSE);
-        }
-    }
-    aiMaterial *readMaterialDef() {
-        aiMaterial *mat(nullptr);
-        const char *name(nullptr);
-        const std::string nodeName(xmlReader->getNodeName());
-        if (nodeName == D3MF::XmlTag::basematerials_base) {
-            name = xmlReader->getAttributeValue(D3MF::XmlTag::basematerials_name.c_str());
-            std::string stdMatName;
-            aiString matName;
-            std::string strId(to_string(mActiveMatGroup));
-            stdMatName += "id";
-            stdMatName += strId;
-            stdMatName += "_";
-            if (nullptr != name) {
-                stdMatName += std::string(name);
-            } else {
-                stdMatName += "basemat";
-            }
-            matName.Set(stdMatName);
-
-            mat = new aiMaterial;
-            mat->AddProperty(&matName, AI_MATKEY_NAME);
-
-            assignDiffuseColor(mat);
-        }
-
-        return mat;
-    }
-
-private:
-    bool ReadToStartElement(const std::string &startTag) {
-        while (xmlReader->read()) {
-            const std::string &nodeName(xmlReader->getNodeName());
-            if (xmlReader->getNodeType() == irr::io::EXN_ELEMENT && nodeName == startTag) {
-                return true;
-            } else if (xmlReader->getNodeType() == irr::io::EXN_ELEMENT_END && nodeName == startTag) {
-                return false;
-            }
-        }
-
-        return false;
-    }
-
-    bool ReadToEndElement(const std::string &closeTag) {
-        while (xmlReader->read()) {
-            const std::string &nodeName(xmlReader->getNodeName());
-            if (xmlReader->getNodeType() == irr::io::EXN_ELEMENT) {
-                return true;
-            } else if (xmlReader->getNodeType() == irr::io::EXN_ELEMENT_END && nodeName == closeTag) {
-                return false;
-            }
-        }
-        ASSIMP_LOG_ERROR("unexpected EOF, expected closing <" + closeTag + "> tag");
-
-        return false;
-    }
-
-private:
-    struct MetaEntry {
-        std::string name;
-        std::string value;
-    };
-    std::vector<MetaEntry> mMetaData;
-    std::vector<aiMesh *> mMeshes;
-    MatArray mMatArray;
-    unsigned int mActiveMatGroup;
-    MatId2MatArray mMatId2MatArray;
-    XmlReader *xmlReader;
-};
-
-} //namespace D3MF
-
-static const aiImporterDesc desc = {
+static constexpr aiImporterDesc desc = {
     "3mf Importer",
     "",
     "",
@@ -430,34 +81,20 @@ static const aiImporterDesc desc = {
     "3mf"
 };
 
-D3MFImporter::D3MFImporter() :
-        BaseImporter() {
-    // empty
-}
-
-D3MFImporter::~D3MFImporter() {
-    // empty
-}
-
-bool D3MFImporter::CanRead(const std::string &filename, IOSystem *pIOHandler, bool checkSig) const {
-    const std::string extension(GetExtension(filename));
-    if (extension == desc.mFileExtensions) {
-        return true;
-    } else if (!extension.length() || checkSig) {
-        if (nullptr == pIOHandler) {
-            return false;
-        }
-        if (!ZipArchiveIOSystem::isZipArchive(pIOHandler, filename)) {
-            return false;
-        }
-        D3MF::D3MFOpcPackage opcPackage(pIOHandler, filename);
-        return opcPackage.validate();
+bool D3MFImporter::CanRead(const std::string &filename, IOSystem *pIOHandler, bool ) const {
+    if (!ZipArchiveIOSystem::isZipArchive(pIOHandler, filename)) {
+        return false;
+    }
+    static const char *const ModelRef = "3D/3dmodel.model";
+    ZipArchiveIOSystem archive(pIOHandler, filename);
+    if (!archive.Exists(ModelRef)) {
+        return false;
     }
 
-    return false;
+    return true;
 }
 
-void D3MFImporter::SetupProperties(const Importer * /*pImp*/) {
+void D3MFImporter::SetupProperties(const Importer*) {
     // empty
 }
 
@@ -466,14 +103,22 @@ const aiImporterDesc *D3MFImporter::GetInfo() const {
 }
 
 void D3MFImporter::InternReadFile(const std::string &filename, aiScene *pScene, IOSystem *pIOHandler) {
-    D3MF::D3MFOpcPackage opcPackage(pIOHandler, filename);
+    D3MFOpcPackage opcPackage(pIOHandler, filename);
 
-    std::unique_ptr<CIrrXML_IOStreamReader> xmlStream(new CIrrXML_IOStreamReader(opcPackage.RootStream()));
-    std::unique_ptr<D3MF::XmlReader> xmlReader(irr::io::createIrrXMLReader(xmlStream.get()));
+    XmlParser xmlParser;
+    if (xmlParser.parse(opcPackage.RootStream())) {
+        XmlSerializer xmlSerializer(&xmlParser);
+        xmlSerializer.ImportXml(pScene);
 
-    D3MF::XmlSerializer xmlSerializer(xmlReader.get());
-
-    xmlSerializer.ImportXml(pScene);
+        const std::vector<aiTexture*> &tex =  opcPackage.GetEmbeddedTextures();
+        if (!tex.empty()) {
+            pScene->mNumTextures = static_cast<unsigned int>(tex.size());
+            pScene->mTextures = new aiTexture *[pScene->mNumTextures];
+            for (unsigned int i = 0; i < pScene->mNumTextures; ++i) {
+                pScene->mTextures[i] = tex[i];
+            }
+        }
+    }
 }
 
 } // Namespace Assimp

code/AssetLib/3MF/D3MFImporter.h

@@ -2,8 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2020, assimp team
-
+Copyright (c) 2006-2024, assimp team
 
 All rights reserved.
 
@@ -43,23 +42,50 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #ifndef AI_D3MFLOADER_H_INCLUDED
 #define AI_D3MFLOADER_H_INCLUDED
 
+#ifndef ASSIMP_BUILD_NO_3MF_IMPORTER
+
 #include <assimp/BaseImporter.h>
 
 namespace Assimp {
 
+// ---------------------------------------------------------------------------
+/// @brief  The 3MF-importer class.
+///
+/// Implements the basic topology import and embedded textures.
+// ---------------------------------------------------------------------------
 class D3MFImporter : public BaseImporter {
 public:
-    // BaseImporter interface
-    D3MFImporter();
-    ~D3MFImporter();
-    bool CanRead(const std::string &pFile, IOSystem *pIOHandler, bool checkSig) const;
-    void SetupProperties(const Importer *pImp);
-    const aiImporterDesc *GetInfo() const;
+    /// @brief The default class constructor.
+    D3MFImporter() = default;
+
+    ///	@brief  The class destructor.
+    ~D3MFImporter() override = default;
+
+    /// @brief Performs the data format detection.
+    /// @param pFile        The filename to check.
+    /// @param pIOHandler   The used IO-System.
+    /// @param checkSig     true for signature checking.
+    /// @return true for can be loaded, false for not.
+    bool CanRead(const std::string &pFile, IOSystem *pIOHandler, bool checkSig) const override;
+
+    /// @brief  Not used
+    /// @param pImp Not used
+    void SetupProperties(const Importer *pImp) override;
+
+    /// @brief The importer description getter.
+    /// @return The info
+    const aiImporterDesc *GetInfo() const override;
 
 protected:
-    void InternReadFile(const std::string &pFile, aiScene *pScene, IOSystem *pIOHandler);
+    /// @brief Internal read function, performs the file parsing.
+    /// @param pFile        The filename
+    /// @param pScene       The scene to load in.
+    /// @param pIOHandler   The io-system
+    void InternReadFile(const std::string &pFile, aiScene *pScene, IOSystem *pIOHandler) override;
 };
 
 } // Namespace Assimp
 
+#endif // #ifndef ASSIMP_BUILD_NO_3MF_IMPORTER
+
 #endif // AI_D3MFLOADER_H_INCLUDED

code/AssetLib/3MF/D3MFOpcPackage.cpp

@@ -2,8 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2020, assimp team
-
+Copyright (c) 2006-2024, assimp team
 
 All rights reserved.
 
@@ -44,19 +43,19 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 #include "D3MFOpcPackage.h"
 #include <assimp/Exceptional.h>
-
+#include <assimp/XmlParser.h>
 #include <assimp/ZipArchiveIOSystem.h>
 #include <assimp/ai_assert.h>
 #include <assimp/DefaultLogger.hpp>
 #include <assimp/IOStream.hpp>
 #include <assimp/IOSystem.hpp>
-
+#include <assimp/texture.h>
 #include "3MFXmlTags.h"
+
 #include <algorithm>
 #include <cassert>
 #include <cstdlib>
 #include <map>
-#include <memory>
 #include <vector>
 
 namespace Assimp {
@@ -64,31 +63,27 @@ namespace Assimp {
 namespace D3MF {
 // ------------------------------------------------------------------------------------------------
 
-typedef std::shared_ptr<OpcPackageRelationship> OpcPackageRelationshipPtr;
+using OpcPackageRelationshipPtr = std::shared_ptr<OpcPackageRelationship>;
 
 class OpcPackageRelationshipReader {
 public:
-    OpcPackageRelationshipReader(XmlReader *xmlReader) {
-        while (xmlReader->read()) {
-            if (xmlReader->getNodeType() == irr::io::EXN_ELEMENT &&
-                    xmlReader->getNodeName() == XmlTag::RELS_RELATIONSHIP_CONTAINER) {
-                ParseRootNode(xmlReader);
+    OpcPackageRelationshipReader(XmlParser &parser) :
+            mRelations() {
+        XmlNode root = parser.getRootNode();
+        ParseRootNode(root);
+    }
+
+    void ParseRootNode(XmlNode &node) {
+        ParseAttributes(node);
+        for (XmlNode currentNode = node.first_child(); currentNode; currentNode = currentNode.next_sibling()) {
+            std::string name = currentNode.name();
+            if (name == "Relationships") {
+                ParseRelationsNode(currentNode);
             }
         }
     }
 
-    void ParseRootNode(XmlReader *xmlReader) {
-        ParseAttributes(xmlReader);
-
-        while (xmlReader->read()) {
-            if (xmlReader->getNodeType() == irr::io::EXN_ELEMENT &&
-                    xmlReader->getNodeName() == XmlTag::RELS_RELATIONSHIP_NODE) {
-                ParseChildNode(xmlReader);
-            }
-        }
-    }
-
-    void ParseAttributes(XmlReader *) {
+    void ParseAttributes(XmlNode & /*node*/) {
         // empty
     }
 
@@ -96,29 +91,51 @@ public:
         if (relPtr->id.empty() || relPtr->type.empty() || relPtr->target.empty()) {
             return false;
         }
+
         return true;
     }
 
-    void ParseChildNode(XmlReader *xmlReader) {
-        OpcPackageRelationshipPtr relPtr(new OpcPackageRelationship());
+    void ParseRelationsNode(XmlNode &node) {
+        if (node.empty()) {
+            return;
+        }
 
-        relPtr->id = xmlReader->getAttributeValueSafe(XmlTag::RELS_ATTRIB_ID.c_str());
-        relPtr->type = xmlReader->getAttributeValueSafe(XmlTag::RELS_ATTRIB_TYPE.c_str());
-        relPtr->target = xmlReader->getAttributeValueSafe(XmlTag::RELS_ATTRIB_TARGET.c_str());
-        if (validateRels(relPtr)) {
-            m_relationShips.push_back(relPtr);
+        for (XmlNode currentNode = node.first_child(); currentNode; currentNode = currentNode.next_sibling()) {
+            const std::string name = currentNode.name();
+            if (name == "Relationship") {
+                OpcPackageRelationshipPtr relPtr(new OpcPackageRelationship());
+                relPtr->id = currentNode.attribute(XmlTag::RELS_ATTRIB_ID).as_string();
+                relPtr->type = currentNode.attribute(XmlTag::RELS_ATTRIB_TYPE).as_string();
+                relPtr->target = currentNode.attribute(XmlTag::RELS_ATTRIB_TARGET).as_string();
+                if (validateRels(relPtr)) {
+                    mRelations.push_back(relPtr);
+                }
+            }
         }
     }
 
-    std::vector<OpcPackageRelationshipPtr> m_relationShips;
+    std::vector<OpcPackageRelationshipPtr> mRelations;
 };
 
+static bool IsEmbeddedTexture( const std::string &filename ) {
+    const std::string extension = BaseImporter::GetExtension(filename);
+    if (extension == "jpg" || extension == "png" || extension == "jpeg") {
+        std::string::size_type pos = filename.find("thumbnail");
+        if (pos != std::string::npos) {
+            return false;
+        }
+        return true;
+    }
+
+    return false;
+}
 // ------------------------------------------------------------------------------------------------
 D3MFOpcPackage::D3MFOpcPackage(IOSystem *pIOHandler, const std::string &rFile) :
-        mRootStream(nullptr), mZipArchive() {
-    mZipArchive.reset(new ZipArchiveIOSystem(pIOHandler, rFile));
+        mRootStream(nullptr),
+        mZipArchive() {
+    mZipArchive = new ZipArchiveIOSystem(pIOHandler, rFile);
     if (!mZipArchive->isOpen()) {
-        throw DeadlyImportError("Failed to open file " + rFile + ".");
+        throw DeadlyImportError("Failed to open file ", rFile, ".");
     }
 
     std::vector<std::string> fileList;
@@ -132,12 +149,12 @@ D3MFOpcPackage::D3MFOpcPackage(IOSystem *pIOHandler, const std::string &rFile) :
 
             IOStream *fileStream = mZipArchive->Open(file.c_str());
             if (nullptr == fileStream) {
-                ai_assert(fileStream != nullptr);
+                ASSIMP_LOG_ERROR("Filestream is nullptr.");
                 continue;
             }
 
             std::string rootFile = ReadPackageRootRelationship(fileStream);
-            if (rootFile.size() > 0 && rootFile[0] == '/') {
+            if (!rootFile.empty() && rootFile[0] == '/') {
                 rootFile = rootFile.substr(1);
                 if (rootFile[0] == '/') {
                     // deal with zip-bug
@@ -152,52 +169,87 @@ D3MFOpcPackage::D3MFOpcPackage(IOSystem *pIOHandler, const std::string &rFile) :
             mRootStream = mZipArchive->Open(rootFile.c_str());
             ai_assert(mRootStream != nullptr);
             if (nullptr == mRootStream) {
-                throw DeadlyExportError("Cannot open root-file in archive : " + rootFile);
+                throw DeadlyImportError("Cannot open root-file in archive : " + rootFile);
             }
-
         } else if (file == D3MF::XmlTag::CONTENT_TYPES_ARCHIVE) {
-            ASSIMP_LOG_WARN_F("Ignored file of unsupported type CONTENT_TYPES_ARCHIVES", file);
+            ASSIMP_LOG_WARN("Ignored file of unsupported type CONTENT_TYPES_ARCHIVES", file);
+        } else if (IsEmbeddedTexture(file)) {
+            IOStream *fileStream = mZipArchive->Open(file.c_str());
+            LoadEmbeddedTextures(fileStream, file);
+            mZipArchive->Close(fileStream);
         } else {
-            ASSIMP_LOG_WARN_F("Ignored file of unknown type: ", file);
+            ASSIMP_LOG_WARN("Ignored file of unknown type: ", file);
         }
     }
 }
 
 D3MFOpcPackage::~D3MFOpcPackage() {
     mZipArchive->Close(mRootStream);
+    delete mZipArchive;
 }
 
 IOStream *D3MFOpcPackage::RootStream() const {
     return mRootStream;
 }
 
-static const std::string ModelRef = "3D/3dmodel.model";
+const std::vector<aiTexture *> &D3MFOpcPackage::GetEmbeddedTextures() const {
+    return mEmbeddedTextures;
+}
+
+static const char *const ModelRef = "3D/3dmodel.model";
 
 bool D3MFOpcPackage::validate() {
     if (nullptr == mRootStream || nullptr == mZipArchive) {
         return false;
     }
 
-    return mZipArchive->Exists(ModelRef.c_str());
+    return mZipArchive->Exists(ModelRef);
 }
 
 std::string D3MFOpcPackage::ReadPackageRootRelationship(IOStream *stream) {
-    std::unique_ptr<CIrrXML_IOStreamReader> xmlStream(new CIrrXML_IOStreamReader(stream));
-    std::unique_ptr<XmlReader> xml(irr::io::createIrrXMLReader(xmlStream.get()));
+    XmlParser xmlParser;
+    if (!xmlParser.parse(stream)) {
+        return std::string();
+    }
 
-    OpcPackageRelationshipReader reader(xml.get());
+    OpcPackageRelationshipReader reader(xmlParser);
 
-    auto itr = std::find_if(reader.m_relationShips.begin(), reader.m_relationShips.end(), [](const OpcPackageRelationshipPtr &rel) {
+    auto itr = std::find_if(reader.mRelations.begin(), reader.mRelations.end(), [](const OpcPackageRelationshipPtr &rel) {
         return rel->type == XmlTag::PACKAGE_START_PART_RELATIONSHIP_TYPE;
     });
 
-    if (itr == reader.m_relationShips.end()) {
-        throw DeadlyImportError("Cannot find " + XmlTag::PACKAGE_START_PART_RELATIONSHIP_TYPE);
+    if (itr == reader.mRelations.end()) {
+        throw DeadlyImportError("Cannot find ", XmlTag::PACKAGE_START_PART_RELATIONSHIP_TYPE);
     }
 
     return (*itr)->target;
 }
 
+void D3MFOpcPackage::LoadEmbeddedTextures(IOStream *fileStream, const std::string &filename) {
+    if (nullptr == fileStream) {
+        return;
+    }
+
+    const size_t size = fileStream->FileSize();
+    if (0 == size) {
+        return;
+    }
+
+    unsigned char *data = new unsigned char[size];
+    fileStream->Read(data, 1, size);
+    aiTexture *texture = new aiTexture;
+    std::string embName = "*" + filename;
+    texture->mFilename.Set(embName.c_str());
+    texture->mWidth = static_cast<unsigned int>(size);
+    texture->mHeight = 0;
+    texture->achFormatHint[0] = 'p';
+    texture->achFormatHint[1] = 'n';
+    texture->achFormatHint[2] = 'g';
+    texture->achFormatHint[3] = '\0';
+    texture->pcData = (aiTexel*) data;
+    mEmbeddedTextures.emplace_back(texture);
+}
+
 } // Namespace D3MF
 } // Namespace Assimp
 

code/AssetLib/3MF/D3MFOpcPackage.h

@@ -2,8 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2020, assimp team
-
+Copyright (c) 2006-2024, assimp team
 
 All rights reserved.
 
@@ -43,19 +42,18 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #ifndef D3MFOPCPACKAGE_H
 #define D3MFOPCPACKAGE_H
 
-#include <memory>
-
 #include <assimp/IOSystem.hpp>
-#include <assimp/irrXMLWrapper.h>
+#include <memory>
+#include <string>
+
+struct aiTexture;
 
 namespace Assimp {
-    class ZipArchiveIOSystem;
+
+class ZipArchiveIOSystem;
 
 namespace D3MF {
 
-using XmlReader = irr::io::IrrXMLReader ;
-using XmlReaderPtr = std::shared_ptr<XmlReader> ;
-
 struct OpcPackageRelationship {
     std::string id;
     std::string type;
@@ -64,20 +62,23 @@ struct OpcPackageRelationship {
 
 class D3MFOpcPackage {
 public:
-    D3MFOpcPackage( IOSystem* pIOHandler, const std::string& rFile );
+    D3MFOpcPackage( IOSystem* pIOHandler, const std::string& file );
     ~D3MFOpcPackage();
     IOStream* RootStream() const;
     bool validate();
+    const std::vector<aiTexture*> &GetEmbeddedTextures() const;
 
 protected:
     std::string ReadPackageRootRelationship(IOStream* stream);
+    void LoadEmbeddedTextures(IOStream *fileStream, const std::string &filename);
 
 private:
     IOStream* mRootStream;
-    std::unique_ptr<ZipArchiveIOSystem> mZipArchive;
+    ZipArchiveIOSystem *mZipArchive;
+    std::vector<aiTexture *> mEmbeddedTextures;
 };
 
-} // Namespace D3MF
-} // Namespace Assimp
+} // namespace D3MF
+} // namespace Assimp
 
 #endif // D3MFOPCPACKAGE_H

code/AssetLib/3MF/XmlSerializer.cpp

@@ -0,0 +1,724 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2024, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+#include "XmlSerializer.h"
+#include "D3MFOpcPackage.h"
+#include "3MFXmlTags.h"
+#include "3MFTypes.h"
+#include <assimp/scene.h>
+
+#include <utility>
+
+namespace Assimp {
+namespace D3MF {
+
+static constexpr int IdNotSet = -1;
+
+namespace {
+
+static constexpr size_t ColRGBA_Len = 9;
+static constexpr size_t ColRGB_Len = 7;
+
+// format of the color string: #RRGGBBAA or #RRGGBB (3MF Core chapter 5.1.1)
+bool validateColorString(const std::string color) {
+    const size_t len = color.size();
+    if (ColRGBA_Len != len && ColRGB_Len != len) {
+        return false;
+    }
+
+    return true;
+}
+
+aiFace ReadTriangle(XmlNode &node, int &texId0, int &texId1, int &texId2) {
+    aiFace face;
+
+    face.mNumIndices = 3;
+    face.mIndices = new unsigned int[face.mNumIndices];
+    face.mIndices[0] = static_cast<unsigned int>(std::atoi(node.attribute(XmlTag::v1).as_string()));
+    face.mIndices[1] = static_cast<unsigned int>(std::atoi(node.attribute(XmlTag::v2).as_string()));
+    face.mIndices[2] = static_cast<unsigned int>(std::atoi(node.attribute(XmlTag::v3).as_string()));
+
+    texId0 = texId1 = texId2 = IdNotSet;
+    XmlParser::getIntAttribute(node, XmlTag::p1, texId0);
+    XmlParser::getIntAttribute(node, XmlTag::p2, texId1);
+    XmlParser::getIntAttribute(node, XmlTag::p3, texId2);
+
+    return face;
+}
+
+aiVector3D ReadVertex(XmlNode &node) {
+    aiVector3D vertex;
+    vertex.x = ai_strtof(node.attribute(XmlTag::x).as_string(), nullptr);
+    vertex.y = ai_strtof(node.attribute(XmlTag::y).as_string(), nullptr);
+    vertex.z = ai_strtof(node.attribute(XmlTag::z).as_string(), nullptr);
+
+    return vertex;
+}
+
+bool getNodeAttribute(const XmlNode &node, const std::string &attribute, std::string &value) {
+    pugi::xml_attribute objectAttribute = node.attribute(attribute.c_str());
+    if (!objectAttribute.empty()) {
+        value = objectAttribute.as_string();
+        return true;
+    }
+
+    return false;
+}
+
+bool getNodeAttribute(const XmlNode &node, const std::string &attribute, int &value) {
+    std::string strValue;
+    const bool ret = getNodeAttribute(node, attribute, strValue);
+    if (ret) {
+        value = std::atoi(strValue.c_str());
+        return true;
+    }
+
+    return false;
+}
+
+aiMatrix4x4 parseTransformMatrix(const std::string& matrixStr) {
+    // split the string
+    std::vector<float> numbers;
+    std::string currentNumber;
+    for (char c : matrixStr) {
+        if (c == ' ') {
+            if (!currentNumber.empty()) {
+                float f = std::stof(currentNumber);
+                numbers.push_back(f);
+                currentNumber.clear();
+            }
+        } else {
+            currentNumber.push_back(c);
+        }
+    }
+    if (!currentNumber.empty()) {
+        const float f = std::stof(currentNumber);
+        numbers.push_back(f);
+    }
+
+    aiMatrix4x4 transformMatrix;
+    transformMatrix.a1 = numbers[0];
+    transformMatrix.b1 = numbers[1];
+    transformMatrix.c1 = numbers[2];
+    transformMatrix.d1 = 0;
+
+    transformMatrix.a2 = numbers[3];
+    transformMatrix.b2 = numbers[4];
+    transformMatrix.c2 = numbers[5];
+    transformMatrix.d2 = 0;
+
+    transformMatrix.a3 = numbers[6];
+    transformMatrix.b3 = numbers[7];
+    transformMatrix.c3 = numbers[8];
+    transformMatrix.d3 = 0;
+
+    transformMatrix.a4 = numbers[9];
+    transformMatrix.b4 = numbers[10];
+    transformMatrix.c4 = numbers[11];
+    transformMatrix.d4 = 1;
+
+    return transformMatrix;
+}
+
+bool parseColor(const std::string &color, aiColor4D &diffuse) {
+    if (color.empty()) {
+        return false;
+    }
+
+    if (!validateColorString(color)) {
+        return false;
+    }
+
+    if ('#' != color[0]) {
+        return false;
+    }
+
+    char r[3] = { color[1], color[2], '\0' };
+    diffuse.r = static_cast<ai_real>(strtol(r, nullptr, 16)) / ai_real(255.0);
+
+    char g[3] = { color[3], color[4], '\0' };
+    diffuse.g = static_cast<ai_real>(strtol(g, nullptr, 16)) / ai_real(255.0);
+
+    char b[3] = { color[5], color[6], '\0' };
+    diffuse.b = static_cast<ai_real>(strtol(b, nullptr, 16)) / ai_real(255.0);
+    const size_t len = color.size();
+    if (ColRGB_Len == len) {
+        return true;
+    }
+
+    char a[3] = { color[7], color[8], '\0' };
+    diffuse.a = static_cast<ai_real>(strtol(a, nullptr, 16)) / ai_real(255.0);
+
+    return true;
+}
+
+void assignDiffuseColor(XmlNode &node, aiMaterial *mat) {
+    const char *color = node.attribute(XmlTag::basematerials_displaycolor).as_string();
+    aiColor4D diffuse;
+    if (parseColor(color, diffuse)) {
+        mat->AddProperty<aiColor4D>(&diffuse, 1, AI_MATKEY_COLOR_DIFFUSE);
+    }
+}
+
+} // namespace
+
+XmlSerializer::XmlSerializer(XmlParser *xmlParser) :
+        mResourcesDictionnary(),
+        mMeshCount(0),
+        mXmlParser(xmlParser) {
+    ai_assert(nullptr != xmlParser);
+}
+
+XmlSerializer::~XmlSerializer() {
+    for (auto &it : mResourcesDictionnary) {
+        delete it.second;
+    }
+}
+
+void XmlSerializer::ImportXml(aiScene *scene) {
+    if (nullptr == scene) {
+        return;
+    }
+
+    scene->mRootNode = new aiNode(XmlTag::RootTag);
+    XmlNode node = mXmlParser->getRootNode().child(XmlTag::model);
+    if (node.empty()) {
+        return;
+    }
+
+    XmlNode resNode = node.child(XmlTag::resources);
+    for (auto &currentNode : resNode.children()) {
+        const std::string currentNodeName = currentNode.name();
+        if (currentNodeName == XmlTag::texture_2d) {
+            ReadEmbeddecTexture(currentNode);
+        } else if (currentNodeName == XmlTag::texture_group) {
+            ReadTextureGroup(currentNode);
+        } else if (currentNodeName == XmlTag::object) {
+            ReadObject(currentNode);
+        } else if (currentNodeName == XmlTag::basematerials) {
+            ReadBaseMaterials(currentNode);
+        } else if (currentNodeName == XmlTag::meta) {
+            ReadMetadata(currentNode);
+        } else if (currentNodeName == XmlTag::colorgroup) {
+            ReadColorGroup(currentNode);
+        }
+    }
+    StoreMaterialsInScene(scene);
+    XmlNode buildNode = node.child(XmlTag::build);
+    if (buildNode.empty()) {
+        return;
+    }
+
+    for (auto &currentNode : buildNode.children()) {
+        const std::string currentNodeName = currentNode.name();
+        if (currentNodeName == XmlTag::item) {
+            int objectId = IdNotSet;
+            std::string transformationMatrixStr;
+            aiMatrix4x4 transformationMatrix;
+            getNodeAttribute(currentNode, D3MF::XmlTag::objectid, objectId);
+            bool hasTransform = getNodeAttribute(currentNode, D3MF::XmlTag::transform, transformationMatrixStr);
+
+            auto it = mResourcesDictionnary.find(objectId);
+            if (it != mResourcesDictionnary.end() && it->second->getType() == ResourceType::RT_Object) {
+                Object *obj = static_cast<Object *>(it->second);
+                if (hasTransform) {
+                    transformationMatrix = parseTransformMatrix(transformationMatrixStr);
+                }
+
+                addObjectToNode(scene->mRootNode, obj, transformationMatrix);
+            }
+        }
+    }
+
+    // import the metadata
+    if (!mMetaData.empty()) {
+        const size_t numMeta = mMetaData.size();
+        scene->mMetaData = aiMetadata::Alloc(static_cast<unsigned int>(numMeta));
+        for (size_t i = 0; i < numMeta; ++i) {
+            aiString val(mMetaData[i].value);
+            scene->mMetaData->Set(static_cast<unsigned int>(i), mMetaData[i].name, val);
+        }
+    }
+
+    // import the meshes, materials are already stored
+    scene->mNumMeshes = static_cast<unsigned int>(mMeshCount);
+    if (scene->mNumMeshes != 0) {
+        scene->mMeshes = new aiMesh *[scene->mNumMeshes]();
+        for (auto &it : mResourcesDictionnary) {
+            if (it.second->getType() == ResourceType::RT_Object) {
+                Object *obj = static_cast<Object *>(it.second);
+                ai_assert(nullptr != obj);
+                for (unsigned int i = 0; i < obj->mMeshes.size(); ++i) {
+                    scene->mMeshes[obj->mMeshIndex[i]] = obj->mMeshes[i];
+                }
+            }
+        }
+    }
+}
+
+void XmlSerializer::addObjectToNode(aiNode *parent, Object *obj, aiMatrix4x4 nodeTransform) {
+    ai_assert(nullptr != obj);
+
+    aiNode *sceneNode = new aiNode(obj->mName);
+    sceneNode->mNumMeshes = static_cast<unsigned int>(obj->mMeshes.size());
+    sceneNode->mMeshes = new unsigned int[sceneNode->mNumMeshes];
+    std::copy(obj->mMeshIndex.begin(), obj->mMeshIndex.end(), sceneNode->mMeshes);
+
+    sceneNode->mTransformation = nodeTransform;
+    if (nullptr != parent) {
+        parent->addChildren(1, &sceneNode);
+    }
+
+    for (Assimp::D3MF::Component c : obj->mComponents) {
+        auto it = mResourcesDictionnary.find(c.mObjectId);
+        if (it != mResourcesDictionnary.end() && it->second->getType() == ResourceType::RT_Object) {
+            addObjectToNode(sceneNode, static_cast<Object *>(it->second), c.mTransformation);
+        }
+    }
+}
+
+void XmlSerializer::ReadObject(XmlNode &node) {
+    int id = IdNotSet, pid = IdNotSet, pindex = IdNotSet;
+    bool hasId = getNodeAttribute(node, XmlTag::id, id);
+    if (!hasId) {
+        return;
+    }
+
+    bool hasPid = getNodeAttribute(node, XmlTag::pid, pid);
+    bool hasPindex = getNodeAttribute(node, XmlTag::pindex, pindex);
+
+    Object *obj = new Object(id);
+    for (XmlNode &currentNode : node.children()) {
+        const std::string currentName = currentNode.name();
+        if (currentName == D3MF::XmlTag::mesh) {
+            auto mesh = ReadMesh(currentNode);
+            mesh->mName.Set(ai_to_string(id));
+
+            if (hasPid) {
+                auto it = mResourcesDictionnary.find(pid);
+                if (hasPindex && it != mResourcesDictionnary.end()) {
+                    if (it->second->getType() == ResourceType::RT_BaseMaterials) {
+                        BaseMaterials *materials = static_cast<BaseMaterials *>(it->second);
+                        mesh->mMaterialIndex = materials->mMaterialIndex[pindex];
+                    } else if (it->second->getType() == ResourceType::RT_Texture2DGroup) {
+                        Texture2DGroup *group = static_cast<Texture2DGroup *>(it->second);
+                        if (mesh->mTextureCoords[0] == nullptr) {
+                            mesh->mNumUVComponents[0] = 2;
+                            for (unsigned int i = 1; i < AI_MAX_NUMBER_OF_TEXTURECOORDS; ++i) {
+                                mesh->mNumUVComponents[i] = 0;
+                            }
+
+                            const std::string name = ai_to_string(group->mTexId);
+                            for (size_t i = 0; i < mMaterials.size(); ++i) {
+                                if (name == mMaterials[i]->GetName().C_Str()) {
+                                    mesh->mMaterialIndex = static_cast<unsigned int>(i);
+                                }
+                            }
+
+                            mesh->mTextureCoords[0] = new aiVector3D[mesh->mNumVertices];
+                            for (unsigned int vertex_idx = 0; vertex_idx < mesh->mNumVertices; vertex_idx++) {
+                                mesh->mTextureCoords[0][vertex_idx] =
+                                        aiVector3D(group->mTex2dCoords[pindex].x, group->mTex2dCoords[pindex].y, 0.0f);
+                            }
+                        } else {
+                            for (unsigned int vertex_idx = 0; vertex_idx < mesh->mNumVertices; vertex_idx++) {
+                                if (mesh->mTextureCoords[0][vertex_idx].z < 0) {
+                                    // use default
+                                    mesh->mTextureCoords[0][vertex_idx] =
+                                            aiVector3D(group->mTex2dCoords[pindex].x, group->mTex2dCoords[pindex].y, 0.0f);
+                                }
+                            }
+                        }
+                    }else if (it->second->getType() == ResourceType::RT_ColorGroup) {
+                        if (mesh->mColors[0] == nullptr) {
+                            mesh->mColors[0] = new aiColor4D[mesh->mNumVertices];
+
+                            ColorGroup *group = static_cast<ColorGroup *>(it->second);
+                            for (unsigned int vertex_idx = 0; vertex_idx < mesh->mNumVertices; vertex_idx++) {
+                                mesh->mColors[0][vertex_idx] = group->mColors[pindex];
+                            }
+                        }
+                    }
+                }
+            }
+
+            obj->mMeshes.push_back(mesh);
+            obj->mMeshIndex.push_back(mMeshCount);
+            mMeshCount++;
+        } else if (currentName == D3MF::XmlTag::components) {
+            for (XmlNode &currentSubNode : currentNode.children()) {
+                const std::string subNodeName = currentSubNode.name();
+                if (subNodeName == D3MF::XmlTag::component) {
+                    int objectId = IdNotSet;
+                    std::string componentTransformStr;
+                    aiMatrix4x4 componentTransform;
+                    if (getNodeAttribute(currentSubNode, D3MF::XmlTag::transform, componentTransformStr)) {
+                        componentTransform = parseTransformMatrix(componentTransformStr);
+                    }
+
+                    if (getNodeAttribute(currentSubNode, D3MF::XmlTag::objectid, objectId)) {
+                        obj->mComponents.push_back({ objectId, componentTransform });
+                    }
+                }
+            }
+        }
+    }
+
+    mResourcesDictionnary.insert(std::make_pair(id, obj));
+}
+
+aiMesh *XmlSerializer::ReadMesh(XmlNode &node) {
+    if (node.empty()) {
+        return nullptr;
+    }
+
+    aiMesh *mesh = new aiMesh();
+    for (XmlNode &currentNode : node.children()) {
+        const std::string currentName = currentNode.name();
+        if (currentName == XmlTag::vertices) {
+            ImportVertices(currentNode, mesh);
+        } else if (currentName == XmlTag::triangles) {
+            ImportTriangles(currentNode, mesh);
+        }
+    }
+
+    return mesh;
+}
+
+void XmlSerializer::ReadMetadata(XmlNode &node) {
+    pugi::xml_attribute attribute = node.attribute(D3MF::XmlTag::meta_name);
+    const std::string name = attribute.as_string();
+    const std::string value = node.value();
+    if (name.empty()) {
+        return;
+    }
+
+    MetaEntry entry;
+    entry.name = name;
+    entry.value = value;
+    mMetaData.push_back(entry);
+}
+
+void XmlSerializer::ImportVertices(XmlNode &node, aiMesh *mesh) {
+    ai_assert(nullptr != mesh);
+
+    std::vector<aiVector3D> vertices;
+    for (XmlNode &currentNode : node.children()) {
+        const std::string currentName = currentNode.name();
+        if (currentName == XmlTag::vertex) {
+            vertices.push_back(ReadVertex(currentNode));
+        }
+    }
+
+    mesh->mNumVertices = static_cast<unsigned int>(vertices.size());
+    mesh->mVertices = new aiVector3D[mesh->mNumVertices];
+    std::copy(vertices.begin(), vertices.end(), mesh->mVertices);
+}
+
+void XmlSerializer::ImportTriangles(XmlNode &node, aiMesh *mesh) {
+    std::vector<aiFace> faces;
+    for (XmlNode &currentNode : node.children()) {
+        const std::string currentName = currentNode.name();
+        if (currentName == XmlTag::triangle) {
+            int pid = IdNotSet;
+            bool hasPid = getNodeAttribute(currentNode, D3MF::XmlTag::pid, pid);
+
+            int pindex[3];
+            aiFace face = ReadTriangle(currentNode, pindex[0], pindex[1], pindex[2]);
+            if (hasPid && (pindex[0] != IdNotSet || pindex[1] != IdNotSet || pindex[2] != IdNotSet)) {
+                auto it = mResourcesDictionnary.find(pid);
+                if (it != mResourcesDictionnary.end()) {
+                    if (it->second->getType() == ResourceType::RT_BaseMaterials) {
+                        BaseMaterials *baseMaterials = static_cast<BaseMaterials *>(it->second);
+
+                        auto update_material = [&](int idx) {
+                            if (pindex[idx] != IdNotSet) {
+                                mesh->mMaterialIndex = baseMaterials->mMaterialIndex[pindex[idx]];
+                            }
+                        };
+
+                        update_material(0);
+                        update_material(1);
+                        update_material(2);
+
+                    } else if (it->second->getType() == ResourceType::RT_Texture2DGroup) {
+                        // Load texture coordinates into mesh, when any
+                        Texture2DGroup *group = static_cast<Texture2DGroup *>(it->second); // fix bug
+                        if (mesh->mTextureCoords[0] == nullptr) {
+                            mesh->mNumUVComponents[0] = 2;
+                            for (unsigned int i = 1; i < AI_MAX_NUMBER_OF_TEXTURECOORDS; ++i) {
+                                mesh->mNumUVComponents[i] = 0;
+                            }
+
+                            const std::string name = ai_to_string(group->mTexId);
+                            for (size_t i = 0; i < mMaterials.size(); ++i) {
+                                if (name == mMaterials[i]->GetName().C_Str()) {
+                                    mesh->mMaterialIndex = static_cast<unsigned int>(i);
+                                }
+                            }
+                            mesh->mTextureCoords[0] = new aiVector3D[mesh->mNumVertices];
+                            for (unsigned int vertex_index = 0; vertex_index < mesh->mNumVertices; vertex_index++) {
+                                mesh->mTextureCoords[0][vertex_index].z = IdNotSet;//mark not set
+                            }
+                        }
+
+                        auto update_texture = [&](int idx) {
+                            if (pindex[idx] != IdNotSet) {
+                                size_t vertex_index = face.mIndices[idx];
+                                mesh->mTextureCoords[0][vertex_index] =
+                                        aiVector3D(group->mTex2dCoords[pindex[idx]].x, group->mTex2dCoords[pindex[idx]].y, 0.0f);
+                            }
+                        };
+
+                        update_texture(0);
+                        update_texture(1);
+                        update_texture(2);
+
+                    } else if (it->second->getType() == ResourceType::RT_ColorGroup) {
+                        // Load vertex color into mesh, when any
+                        ColorGroup *group = static_cast<ColorGroup *>(it->second);
+                        if (mesh->mColors[0] == nullptr) {
+                            mesh->mColors[0] = new aiColor4D[mesh->mNumVertices];
+                        }
+
+                        auto update_color = [&](int idx) {
+                            if (pindex[idx] != IdNotSet) {
+                                size_t vertex_index = face.mIndices[idx];
+                                mesh->mColors[0][vertex_index] = group->mColors[pindex[idx]];
+                            }
+                        };
+
+                        update_color(0);
+                        update_color(1);
+                        update_color(2);
+                    }
+                }
+            }
+
+            faces.push_back(face);
+        }
+    }
+
+    mesh->mNumFaces = static_cast<unsigned int>(faces.size());
+    mesh->mFaces = new aiFace[mesh->mNumFaces];
+    mesh->mPrimitiveTypes = aiPrimitiveType_TRIANGLE;
+
+    std::copy(faces.begin(), faces.end(), mesh->mFaces);
+}
+
+void XmlSerializer::ReadBaseMaterials(XmlNode &node) {
+    int id = IdNotSet;
+    if (getNodeAttribute(node, D3MF::XmlTag::id, id)) {
+        BaseMaterials *baseMaterials = new BaseMaterials(id);
+
+        for (XmlNode &currentNode : node.children()) {
+            const std::string currentName = currentNode.name();
+            if (currentName == XmlTag::basematerials_base) {
+                baseMaterials->mMaterialIndex.push_back(static_cast<unsigned int>(mMaterials.size()));
+                mMaterials.push_back(readMaterialDef(currentNode, id));
+            }
+        }
+
+        mResourcesDictionnary.insert(std::make_pair(id, baseMaterials));
+    }
+}
+
+void XmlSerializer::ReadEmbeddecTexture(XmlNode &node) {
+    if (node.empty()) {
+        return;
+    }
+
+    std::string value;
+    EmbeddedTexture *tex2D = nullptr;
+    if (XmlParser::getStdStrAttribute(node, XmlTag::id, value)) {
+        tex2D = new EmbeddedTexture(atoi(value.c_str()));
+    }
+    if (nullptr == tex2D) {
+        return;
+    }
+
+    if (XmlParser::getStdStrAttribute(node, XmlTag::path, value)) {
+        tex2D->mPath = value;
+    }
+    if (XmlParser::getStdStrAttribute(node, XmlTag::texture_content_type, value)) {
+        tex2D->mContentType = value;
+    }
+    if (XmlParser::getStdStrAttribute(node, XmlTag::texture_tilestyleu, value)) {
+        tex2D->mTilestyleU = value;
+    }
+    if (XmlParser::getStdStrAttribute(node, XmlTag::texture_tilestylev, value)) {
+        tex2D->mTilestyleV = value;
+    }
+    mEmbeddedTextures.emplace_back(tex2D);
+    StoreEmbeddedTexture(tex2D);
+}
+
+void XmlSerializer::StoreEmbeddedTexture(EmbeddedTexture *tex) {
+    aiMaterial *mat = new aiMaterial;
+    aiString s;
+    s.Set(ai_to_string(tex->mId).c_str());
+    mat->AddProperty(&s, AI_MATKEY_NAME);
+    const std::string name = "*" + tex->mPath;
+    s.Set(name);
+    mat->AddProperty(&s, AI_MATKEY_TEXTURE_DIFFUSE(0));
+
+    aiColor3D col;
+    mat->AddProperty<aiColor3D>(&col, 1, AI_MATKEY_COLOR_DIFFUSE);
+    mat->AddProperty<aiColor3D>(&col, 1, AI_MATKEY_COLOR_AMBIENT);
+    mat->AddProperty<aiColor3D>(&col, 1, AI_MATKEY_COLOR_EMISSIVE);
+    mat->AddProperty<aiColor3D>(&col, 1, AI_MATKEY_COLOR_SPECULAR);
+    mMaterials.emplace_back(mat);
+}
+
+void XmlSerializer::ReadTextureCoords2D(XmlNode &node, Texture2DGroup *tex2DGroup) {
+    if (node.empty() || nullptr == tex2DGroup) {
+        return;
+    }
+
+    int id = IdNotSet;
+    if (XmlParser::getIntAttribute(node, "texid", id)) {
+        tex2DGroup->mTexId = id;
+    }
+
+    double value = 0.0;
+    for (XmlNode currentNode : node.children()) {
+        const std::string currentName = currentNode.name();
+        aiVector2D texCoord;
+        if (currentName == XmlTag::texture_2d_coord) {
+            XmlParser::getDoubleAttribute(currentNode, XmlTag::texture_cuurd_u, value);
+            texCoord.x = (ai_real)value;
+            XmlParser::getDoubleAttribute(currentNode, XmlTag::texture_cuurd_v, value);
+            texCoord.y = (ai_real)value;
+            tex2DGroup->mTex2dCoords.push_back(texCoord);
+        }
+    }
+}
+
+void XmlSerializer::ReadTextureGroup(XmlNode &node) {
+    if (node.empty()) {
+        return;
+    }
+
+    int id = IdNotSet;
+    if (!XmlParser::getIntAttribute(node, XmlTag::id, id)) {
+        return;
+    }
+
+    Texture2DGroup *group = new Texture2DGroup(id);
+    ReadTextureCoords2D(node, group);
+    mResourcesDictionnary.insert(std::make_pair(id, group));
+}
+
+aiMaterial *XmlSerializer::readMaterialDef(XmlNode &node, unsigned int basematerialsId) {
+    aiMaterial *material = new aiMaterial();
+    material->mNumProperties = 0;
+    std::string name;
+    bool hasName = getNodeAttribute(node, D3MF::XmlTag::basematerials_name, name);
+
+    std::string stdMaterialName;
+    const std::string strId(ai_to_string(basematerialsId));
+    stdMaterialName += "id";
+    stdMaterialName += strId;
+    stdMaterialName += "_";
+    if (hasName) {
+        stdMaterialName += name;
+    } else {
+        stdMaterialName += "basemat_";
+        stdMaterialName += ai_to_string(mMaterials.size());
+    }
+
+    aiString assimpMaterialName(stdMaterialName);
+    material->AddProperty(&assimpMaterialName, AI_MATKEY_NAME);
+
+    assignDiffuseColor(node, material);
+
+    return material;
+}
+
+void XmlSerializer::ReadColor(XmlNode &node, ColorGroup *colorGroup) {
+    if (node.empty() || nullptr == colorGroup) {
+        return;
+    }
+
+    for (XmlNode currentNode : node.children()) {
+        const std::string currentName = currentNode.name();
+        if (currentName == XmlTag::color_item) {
+            const char *color = currentNode.attribute(XmlTag::color_vaule).as_string();
+            aiColor4D color_value;
+            if (parseColor(color, color_value)) {
+                colorGroup->mColors.push_back(color_value);
+            }
+        }
+    }
+}
+
+void XmlSerializer::ReadColorGroup(XmlNode &node) {
+    if (node.empty()) {
+        return;
+    }
+
+    int id = IdNotSet;
+    if (!XmlParser::getIntAttribute(node, XmlTag::id, id)) {
+        return;
+    }
+
+    ColorGroup *group = new ColorGroup(id);
+    ReadColor(node, group);
+    mResourcesDictionnary.insert(std::make_pair(id, group));
+}
+
+void XmlSerializer::StoreMaterialsInScene(aiScene *scene) {
+    if (nullptr == scene) {
+        return;
+    }
+
+    scene->mNumMaterials = static_cast<unsigned int>(mMaterials.size());
+    if (scene->mNumMaterials == 0) {
+        return;
+    }
+
+    scene->mMaterials = new aiMaterial *[scene->mNumMaterials];
+    for (size_t i = 0; i < mMaterials.size(); ++i) {
+        scene->mMaterials[i] = mMaterials[i];
+    }
+}
+
+} // namespace D3MF
+} // namespace Assimp

code/AssetLib/3MF/XmlSerializer.h

@@ -0,0 +1,99 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2024, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+#pragma once
+
+#include <assimp/XmlParser.h>
+#include <assimp/mesh.h>
+#include <vector>
+#include <map>
+
+struct aiNode;
+struct aiMesh;
+struct aiMaterial;
+
+namespace Assimp {
+namespace D3MF {
+
+class Resource;
+class D3MFOpcPackage;
+class Object;
+class Texture2DGroup;
+class EmbeddedTexture;
+class ColorGroup;
+
+class XmlSerializer {
+public:
+    XmlSerializer(XmlParser *xmlParser);
+    ~XmlSerializer();
+    void ImportXml(aiScene *scene);
+
+private:
+    void addObjectToNode(aiNode *parent, Object *obj, aiMatrix4x4 nodeTransform);
+    void ReadObject(XmlNode &node);
+    aiMesh *ReadMesh(XmlNode &node);
+    void ReadMetadata(XmlNode &node);
+    void ImportVertices(XmlNode &node, aiMesh *mesh);
+    void ImportTriangles(XmlNode &node, aiMesh *mesh);
+    void ReadBaseMaterials(XmlNode &node);
+    void ReadEmbeddecTexture(XmlNode &node);
+    void StoreEmbeddedTexture(EmbeddedTexture *tex);
+    void ReadTextureCoords2D(XmlNode &node, Texture2DGroup *tex2DGroup);
+    void ReadTextureGroup(XmlNode &node);
+    aiMaterial *readMaterialDef(XmlNode &node, unsigned int basematerialsId);
+    void StoreMaterialsInScene(aiScene *scene);
+    void ReadColorGroup(XmlNode &node);
+    void ReadColor(XmlNode &node, ColorGroup *colorGroup);
+
+private:
+    struct MetaEntry {
+        std::string name;
+        std::string value;
+    };
+    std::vector<MetaEntry> mMetaData;
+    std::vector<EmbeddedTexture *> mEmbeddedTextures;
+    std::vector<aiMaterial *> mMaterials;
+    std::map<unsigned int, Resource *> mResourcesDictionnary;
+    unsigned int mMeshCount;
+    XmlParser *mXmlParser;
+};
+
+} // namespace D3MF
+} // namespace Assimp

code/AssetLib/AC/ACLoader.cpp

@@ -3,7 +3,7 @@
 Open Asset Import Library (assimp)
 ---------------------------------------------------------------------------
 
-Copyright (c) 2006-2020, assimp team
+Copyright (c) 2006-2024, assimp team
 
 All rights reserved.
 
@@ -60,9 +60,9 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include <assimp/Importer.hpp>
 #include <memory>
 
-using namespace Assimp;
+namespace Assimp {
 
-static const aiImporterDesc desc = {
+static constexpr aiImporterDesc desc = {
     "AC3D Importer",
     "",
     "",
@@ -77,8 +77,8 @@ static const aiImporterDesc desc = {
 
 // ------------------------------------------------------------------------------------------------
 // skip to the next token
-inline const char *AcSkipToNextToken(const char *buffer) {
-    if (!SkipSpaces(&buffer)) {
+inline const char *AcSkipToNextToken(const char *buffer, const char *end) {
+    if (!SkipSpaces(&buffer, end)) {
         ASSIMP_LOG_ERROR("AC3D: Unexpected EOF/EOL");
     }
     return buffer;
@@ -86,13 +86,13 @@ inline const char *AcSkipToNextToken(const char *buffer) {
 
 // ------------------------------------------------------------------------------------------------
 // read a string (may be enclosed in double quotation marks). buffer must point to "
-inline const char *AcGetString(const char *buffer, std::string &out) {
+inline const char *AcGetString(const char *buffer, const char *end, std::string &out) {
     if (*buffer == '\0') {
         throw DeadlyImportError("AC3D: Unexpected EOF in string");
     }
     ++buffer;
     const char *sz = buffer;
-    while ('\"' != *buffer) {
+    while ('\"' != *buffer && buffer != end) {
         if (IsLineEnd(*buffer)) {
             ASSIMP_LOG_ERROR("AC3D: Unexpected EOF/EOL in string");
             out = "ERROR";
@@ -112,17 +112,17 @@ inline const char *AcGetString(const char *buffer, std::string &out) {
 // ------------------------------------------------------------------------------------------------
 // read 1 to n floats prefixed with an optional predefined identifier
 template <class T>
-inline const char *TAcCheckedLoadFloatArray(const char *buffer, const char *name, size_t name_length, size_t num, T *out) {
-    buffer = AcSkipToNextToken(buffer);
+inline const char *TAcCheckedLoadFloatArray(const char *buffer, const char *end, const char *name, size_t name_length, size_t num, T *out) {
+    buffer = AcSkipToNextToken(buffer, end);
     if (0 != name_length) {
         if (0 != strncmp(buffer, name, name_length) || !IsSpace(buffer[name_length])) {
-            ASSIMP_LOG_ERROR("AC3D: Unexpexted token. " + std::string(name) + " was expected.");
+            ASSIMP_LOG_ERROR("AC3D: Unexpected token. ", name, " was expected.");
             return buffer;
         }
         buffer += name_length + 1;
     }
     for (unsigned int _i = 0; _i < num; ++_i) {
-        buffer = AcSkipToNextToken(buffer);
+        buffer = AcSkipToNextToken(buffer, end);
         buffer = fast_atoreal_move<float>(buffer, ((float *)out)[_i]);
     }
 
@@ -132,7 +132,7 @@ inline const char *TAcCheckedLoadFloatArray(const char *buffer, const char *name
 // ------------------------------------------------------------------------------------------------
 // Constructor to be privately used by Importer
 AC3DImporter::AC3DImporter() :
-        buffer(),
+        mBuffer(),
         configSplitBFCull(),
         configEvalSubdivision(),
         mNumMeshes(),
@@ -146,24 +146,13 @@ AC3DImporter::AC3DImporter() :
 
 // ------------------------------------------------------------------------------------------------
 // Destructor, private as well
-AC3DImporter::~AC3DImporter() {
-    // nothing to be done here
-}
+AC3DImporter::~AC3DImporter() = default;
 
 // ------------------------------------------------------------------------------------------------
 // Returns whether the class can handle the format of the given file.
-bool AC3DImporter::CanRead(const std::string &pFile, IOSystem *pIOHandler, bool checkSig) const {
-    std::string extension = GetExtension(pFile);
-
-    // fixme: are acc and ac3d *really* used? Some sources say they are
-    if (extension == "ac" || extension == "ac3d" || extension == "acc") {
-        return true;
-    }
-    if (!extension.length() || checkSig) {
-        uint32_t token = AI_MAKE_MAGIC("AC3D");
-        return CheckMagicToken(pIOHandler, pFile, &token, 1, 0);
-    }
-    return false;
+bool AC3DImporter::CanRead(const std::string &pFile, IOSystem *pIOHandler, bool /*checkSig*/) const {
+    static const uint32_t tokens[] = { AI_MAKE_MAGIC("AC3D") };
+    return CheckMagicToken(pIOHandler, pFile, tokens, AI_COUNT_OF(tokens));
 }
 
 // ------------------------------------------------------------------------------------------------
@@ -175,25 +164,25 @@ const aiImporterDesc *AC3DImporter::GetInfo() const {
 // ------------------------------------------------------------------------------------------------
 // Get a pointer to the next line from the file
 bool AC3DImporter::GetNextLine() {
-    SkipLine(&buffer);
-    return SkipSpaces(&buffer);
+    SkipLine(&mBuffer.data, mBuffer.end);
+    return SkipSpaces(&mBuffer.data, mBuffer.end);
 }
 
 // ------------------------------------------------------------------------------------------------
 // Parse an object section in an AC file
-void AC3DImporter::LoadObjectSection(std::vector<Object> &objects) {
-    if (!TokenMatch(buffer, "OBJECT", 6))
-        return;
+bool AC3DImporter::LoadObjectSection(std::vector<Object> &objects) {
+    if (!TokenMatch(mBuffer.data, "OBJECT", 6))
+        return false;
 
-    SkipSpaces(&buffer);
+    SkipSpaces(&mBuffer.data, mBuffer.end);
 
     ++mNumMeshes;
 
-    objects.push_back(Object());
+    objects.emplace_back();
     Object &obj = objects.back();
 
     aiLight *light = nullptr;
-    if (!ASSIMP_strincmp(buffer, "light", 5)) {
+    if (!ASSIMP_strincmp(mBuffer.data, "light", 5)) {
         // This is a light source. Add it to the list
         mLights->push_back(light = new aiLight());
 
@@ -204,65 +193,71 @@ void AC3DImporter::LoadObjectSection(std::vector<Object> &objects) {
 
         // Generate a default name for both the light source and the node
         // FIXME - what's the right way to print a size_t? Is 'zu' universally available? stick with the safe version.
-        light->mName.length = ::ai_snprintf(light->mName.data, MAXLEN, "ACLight_%i", static_cast<unsigned int>(mLights->size()) - 1);
+        light->mName.length = ::ai_snprintf(light->mName.data, AI_MAXLEN, "ACLight_%i", static_cast<unsigned int>(mLights->size()) - 1);
         obj.name = std::string(light->mName.data);
 
         ASSIMP_LOG_VERBOSE_DEBUG("AC3D: Light source encountered");
         obj.type = Object::Light;
-    } else if (!ASSIMP_strincmp(buffer, "group", 5)) {
+    } else if (!ASSIMP_strincmp(mBuffer.data, "group", 5)) {
         obj.type = Object::Group;
-    } else if (!ASSIMP_strincmp(buffer, "world", 5)) {
+    } else if (!ASSIMP_strincmp(mBuffer.data, "world", 5)) {
         obj.type = Object::World;
     } else
         obj.type = Object::Poly;
     while (GetNextLine()) {
-        if (TokenMatch(buffer, "kids", 4)) {
-            SkipSpaces(&buffer);
-            unsigned int num = strtoul10(buffer, &buffer);
+        if (TokenMatch(mBuffer.data, "kids", 4)) {
+            SkipSpaces(&mBuffer.data, mBuffer.end);
+            unsigned int num = strtoul10(mBuffer.data, &mBuffer.data);
             GetNextLine();
             if (num) {
                 // load the children of this object recursively
                 obj.children.reserve(num);
-                for (unsigned int i = 0; i < num; ++i)
-                    LoadObjectSection(obj.children);
+                for (unsigned int i = 0; i < num; ++i) {
+                    if (!LoadObjectSection(obj.children)) {
+                        ASSIMP_LOG_WARN("AC3D: wrong number of kids");
+                        break;
+                    }
+                }
             }
-            return;
-        } else if (TokenMatch(buffer, "name", 4)) {
-            SkipSpaces(&buffer);
-            buffer = AcGetString(buffer, obj.name);
+            return true;
+        } else if (TokenMatch(mBuffer.data, "name", 4)) {
+            SkipSpaces(&mBuffer.data, mBuffer.data);
+            mBuffer.data = AcGetString(mBuffer.data, mBuffer.end, obj.name);
 
             // If this is a light source, we'll also need to store
             // the name of the node in it.
             if (light) {
                 light->mName.Set(obj.name);
             }
-        } else if (TokenMatch(buffer, "texture", 7)) {
-            SkipSpaces(&buffer);
-            buffer = AcGetString(buffer, obj.texture);
-        } else if (TokenMatch(buffer, "texrep", 6)) {
-            SkipSpaces(&buffer);
-            buffer = TAcCheckedLoadFloatArray(buffer, "", 0, 2, &obj.texRepeat);
+        } else if (TokenMatch(mBuffer.data, "texture", 7)) {
+            SkipSpaces(&mBuffer.data, mBuffer.end);
+            std::string texture;
+            mBuffer.data = AcGetString(mBuffer.data, mBuffer.end, texture);
+            obj.textures.push_back(texture);
+        } else if (TokenMatch(mBuffer.data, "texrep", 6)) {
+            SkipSpaces(&mBuffer.data, mBuffer.end);
+            mBuffer.data = TAcCheckedLoadFloatArray(mBuffer.data, mBuffer.end, "", 0, 2, &obj.texRepeat);
             if (!obj.texRepeat.x || !obj.texRepeat.y)
                 obj.texRepeat = aiVector2D(1.f, 1.f);
-        } else if (TokenMatch(buffer, "texoff", 6)) {
-            SkipSpaces(&buffer);
-            buffer = TAcCheckedLoadFloatArray(buffer, "", 0, 2, &obj.texOffset);
-        } else if (TokenMatch(buffer, "rot", 3)) {
-            SkipSpaces(&buffer);
-            buffer = TAcCheckedLoadFloatArray(buffer, "", 0, 9, &obj.rotation);
-        } else if (TokenMatch(buffer, "loc", 3)) {
-            SkipSpaces(&buffer);
-            buffer = TAcCheckedLoadFloatArray(buffer, "", 0, 3, &obj.translation);
-        } else if (TokenMatch(buffer, "subdiv", 6)) {
-            SkipSpaces(&buffer);
-            obj.subDiv = strtoul10(buffer, &buffer);
-        } else if (TokenMatch(buffer, "crease", 6)) {
-            SkipSpaces(&buffer);
-            obj.crease = fast_atof(buffer);
-        } else if (TokenMatch(buffer, "numvert", 7)) {
-            SkipSpaces(&buffer);
+        } else if (TokenMatch(mBuffer.data, "texoff", 6)) {
+            SkipSpaces(&mBuffer.data, mBuffer.end);
+            mBuffer.data = TAcCheckedLoadFloatArray(mBuffer.data, mBuffer.end, "", 0, 2, &obj.texOffset);
+        } else if (TokenMatch(mBuffer.data, "rot", 3)) {
+            SkipSpaces(&mBuffer.data, mBuffer.end);
+            mBuffer.data = TAcCheckedLoadFloatArray(mBuffer.data, mBuffer.end, "", 0, 9, &obj.rotation);
+        } else if (TokenMatch(mBuffer.data, "loc", 3)) {
+            SkipSpaces(&mBuffer.data, mBuffer.end);
+            mBuffer.data = TAcCheckedLoadFloatArray(mBuffer.data, mBuffer.end, "", 0, 3, &obj.translation);
+        } else if (TokenMatch(mBuffer.data, "subdiv", 6)) {
+            SkipSpaces(&mBuffer.data, mBuffer.end);
+            obj.subDiv = strtoul10(mBuffer.data, &mBuffer.data);
+        } else if (TokenMatch(mBuffer.data, "crease", 6)) {
+            SkipSpaces(&mBuffer.data, mBuffer.end);
+            obj.crease = fast_atof(mBuffer.data);
+        } else if (TokenMatch(mBuffer.data, "numvert", 7)) {
+            SkipSpaces(&mBuffer.data, mBuffer.end);
 
-            unsigned int t = strtoul10(buffer, &buffer);
+            unsigned int t = strtoul10(mBuffer.data, &mBuffer.data);
             if (t >= AI_MAX_ALLOC(aiVector3D)) {
                 throw DeadlyImportError("AC3D: Too many vertices, would run out of memory");
             }
@@ -271,59 +266,59 @@ void AC3DImporter::LoadObjectSection(std::vector<Object> &objects) {
                 if (!GetNextLine()) {
                     ASSIMP_LOG_ERROR("AC3D: Unexpected EOF: not all vertices have been parsed yet");
                     break;
-                } else if (!IsNumeric(*buffer)) {
+                } else if (!IsNumeric(*mBuffer.data)) {
                     ASSIMP_LOG_ERROR("AC3D: Unexpected token: not all vertices have been parsed yet");
-                    --buffer; // make sure the line is processed a second time
+                    --mBuffer.data; // make sure the line is processed a second time
                     break;
                 }
-                obj.vertices.push_back(aiVector3D());
+                obj.vertices.emplace_back();
                 aiVector3D &v = obj.vertices.back();
-                buffer = TAcCheckedLoadFloatArray(buffer, "", 0, 3, &v.x);
+                mBuffer.data = TAcCheckedLoadFloatArray(mBuffer.data, mBuffer.end, "", 0, 3, &v.x);
             }
-        } else if (TokenMatch(buffer, "numsurf", 7)) {
-            SkipSpaces(&buffer);
+        } else if (TokenMatch(mBuffer.data, "numsurf", 7)) {
+            SkipSpaces(&mBuffer.data, mBuffer.end);
 
             bool Q3DWorkAround = false;
 
-            const unsigned int t = strtoul10(buffer, &buffer);
+            const unsigned int t = strtoul10(mBuffer.data, &mBuffer.data);
             obj.surfaces.reserve(t);
             for (unsigned int i = 0; i < t; ++i) {
                 GetNextLine();
-                if (!TokenMatch(buffer, "SURF", 4)) {
+                if (!TokenMatch(mBuffer.data, "SURF", 4)) {
                     // FIX: this can occur for some files - Quick 3D for
                     // example writes no surf chunks
                     if (!Q3DWorkAround) {
                         ASSIMP_LOG_WARN("AC3D: SURF token was expected");
                         ASSIMP_LOG_VERBOSE_DEBUG("Continuing with Quick3D Workaround enabled");
                     }
-                    --buffer; // make sure the line is processed a second time
+                    --mBuffer.data; // make sure the line is processed a second time
                     // break; --- see fix notes above
 
                     Q3DWorkAround = true;
                 }
-                SkipSpaces(&buffer);
-                obj.surfaces.push_back(Surface());
+                SkipSpaces(&mBuffer.data, mBuffer.end);
+                obj.surfaces.emplace_back();
                 Surface &surf = obj.surfaces.back();
-                surf.flags = strtoul_cppstyle(buffer);
+                surf.flags = strtoul_cppstyle(mBuffer.data);
 
-                while (1) {
+                while (true) {
                     if (!GetNextLine()) {
                         throw DeadlyImportError("AC3D: Unexpected EOF: surface is incomplete");
                     }
-                    if (TokenMatch(buffer, "mat", 3)) {
-                        SkipSpaces(&buffer);
-                        surf.mat = strtoul10(buffer);
-                    } else if (TokenMatch(buffer, "refs", 4)) {
+                    if (TokenMatch(mBuffer.data, "mat", 3)) {
+                        SkipSpaces(&mBuffer.data, mBuffer.end);
+                        surf.mat = strtoul10(mBuffer.data);
+                    } else if (TokenMatch(mBuffer.data, "refs", 4)) {
                         // --- see fix notes above
                         if (Q3DWorkAround) {
                             if (!surf.entries.empty()) {
-                                buffer -= 6;
+                                mBuffer.data -= 6;
                                 break;
                             }
                         }
 
-                        SkipSpaces(&buffer);
-                        const unsigned int m = strtoul10(buffer);
+                        SkipSpaces(&mBuffer.data, mBuffer.end);
+                        const unsigned int m = strtoul10(mBuffer.data);
                         surf.entries.reserve(m);
 
                         obj.numRefs += m;
@@ -333,15 +328,15 @@ void AC3DImporter::LoadObjectSection(std::vector<Object> &objects) {
                                 ASSIMP_LOG_ERROR("AC3D: Unexpected EOF: surface references are incomplete");
                                 break;
                             }
-                            surf.entries.push_back(Surface::SurfaceEntry());
+                            surf.entries.emplace_back();
                             Surface::SurfaceEntry &entry = surf.entries.back();
 
-                            entry.first = strtoul10(buffer, &buffer);
-                            SkipSpaces(&buffer);
-                            buffer = TAcCheckedLoadFloatArray(buffer, "", 0, 2, &entry.second);
+                            entry.first = strtoul10(mBuffer.data, &mBuffer.data);
+                            SkipSpaces(&mBuffer.data, mBuffer.end);
+                            mBuffer.data = TAcCheckedLoadFloatArray(mBuffer.data, mBuffer.end, "", 0, 2, &entry.second);
                         }
                     } else {
-                        --buffer; // make sure the line is processed a second time
+                        --mBuffer.data; // make sure the line is processed a second time
                         break;
                     }
                 }
@@ -349,6 +344,7 @@ void AC3DImporter::LoadObjectSection(std::vector<Object> &objects) {
         }
     }
     ASSIMP_LOG_ERROR("AC3D: Unexpected EOF: \'kids\' line was expected");
+    return false;
 }
 
 // ------------------------------------------------------------------------------------------------
@@ -362,8 +358,8 @@ void AC3DImporter::ConvertMaterial(const Object &object,
         s.Set(matSrc.name);
         matDest.AddProperty(&s, AI_MATKEY_NAME);
     }
-    if (object.texture.length()) {
-        s.Set(object.texture);
+    if (!object.textures.empty()) {
+        s.Set(object.textures[0]);
         matDest.AddProperty(&s, AI_MATKEY_TEXTURE_DIFFUSE(0));
 
         // UV transformation
@@ -454,7 +450,7 @@ aiNode *AC3DImporter::ConvertObjectSection(Object &object,
                     idx = 0;
                 }
                 if ((*it).entries.empty()) {
-                    ASSIMP_LOG_WARN("AC3D: surface her zero vertex references");
+                    ASSIMP_LOG_WARN("AC3D: surface has zero vertex references");
                 }
 
                 // validate all vertex indices to make sure we won't crash here
@@ -472,16 +468,15 @@ aiNode *AC3DImporter::ConvertObjectSection(Object &object,
                 }
 
                 switch ((*it).GetType()) {
-                    // closed line
-                case Surface::ClosedLine:
-                    needMat[idx].first += (unsigned int)(*it).entries.size();
-                    needMat[idx].second += (unsigned int)(*it).entries.size() << 1u;
+                case Surface::ClosedLine: // closed line
+                    needMat[idx].first += static_cast<unsigned int>((*it).entries.size());
+                    needMat[idx].second += static_cast<unsigned int>((*it).entries.size() << 1u);
                     break;
 
                     // unclosed line
                 case Surface::OpenLine:
-                    needMat[idx].first += (unsigned int)(*it).entries.size() - 1;
-                    needMat[idx].second += ((unsigned int)(*it).entries.size() - 1) << 1u;
+                    needMat[idx].first += static_cast<unsigned int>((*it).entries.size() - 1);
+                    needMat[idx].second += static_cast<unsigned int>(((*it).entries.size() - 1) << 1u);
                     break;
 
                     // triangle strip
@@ -492,7 +487,7 @@ aiNode *AC3DImporter::ConvertObjectSection(Object &object,
 
                 default:
                     // Coerce unknowns to a polygon and warn
-                    ASSIMP_LOG_WARN_F("AC3D: The type flag of a surface is unknown: ", (*it).flags);
+                    ASSIMP_LOG_WARN("AC3D: The type flag of a surface is unknown: ", (*it).flags);
                     (*it).flags &= ~(Surface::Mask);
                     // fallthrough
 
@@ -543,7 +538,7 @@ aiNode *AC3DImporter::ConvertObjectSection(Object &object,
                 // allocate UV coordinates, but only if the texture name for the
                 // surface is not empty
                 aiVector3D *uv = nullptr;
-                if (object.texture.length()) {
+                if (!object.textures.empty()) {
                     uv = mesh->mTextureCoords[0] = new aiVector3D[mesh->mNumVertices];
                     mesh->mNumUVComponents[0] = 2;
                 }
@@ -583,15 +578,6 @@ aiNode *AC3DImporter::ConvertObjectSection(Object &object,
                                 const Surface::SurfaceEntry &entry2 = src.entries[i + 1];
                                 const Surface::SurfaceEntry &entry3 = src.entries[i + 2];
 
-                                // skip degenerate triangles
-                                if (object.vertices[entry1.first] == object.vertices[entry2.first] ||
-                                        object.vertices[entry1.first] == object.vertices[entry3.first] ||
-                                        object.vertices[entry2.first] == object.vertices[entry3.first]) {
-                                    mesh->mNumFaces--;
-                                    mesh->mNumVertices -= 3;
-                                    continue;
-                                }
-
                                 aiFace &face = *faces++;
                                 face.mNumIndices = 3;
                                 face.mIndices = new unsigned int[face.mNumIndices];
@@ -690,7 +676,7 @@ aiNode *AC3DImporter::ConvertObjectSection(Object &object,
             if (object.subDiv) {
                 if (configEvalSubdivision) {
                     std::unique_ptr<Subdivider> div(Subdivider::Create(Subdivider::CATMULL_CLARKE));
-                    ASSIMP_LOG_INFO("AC3D: Evaluating subdivision surface: " + object.name);
+                    ASSIMP_LOG_INFO("AC3D: Evaluating subdivision surface: ", object.name);
 
                     std::vector<aiMesh *> cpy(meshes.size() - oldm, nullptr);
                     div->Subdivide(&meshes[oldm], cpy.size(), &cpy.front(), object.subDiv, true);
@@ -698,7 +684,7 @@ aiNode *AC3DImporter::ConvertObjectSection(Object &object,
 
                     // previous meshes are deleted vy Subdivide().
                 } else {
-                    ASSIMP_LOG_INFO("AC3D: Letting the subdivision surface untouched due to my configuration: " + object.name);
+                    ASSIMP_LOG_INFO("AC3D: Letting the subdivision surface untouched due to my configuration: ", object.name);
                 }
             }
         }
@@ -710,18 +696,18 @@ aiNode *AC3DImporter::ConvertObjectSection(Object &object,
         // generate a name depending on the type of the node
         switch (object.type) {
         case Object::Group:
-            node->mName.length = ::ai_snprintf(node->mName.data, MAXLEN, "ACGroup_%i", mGroupsCounter++);
+            node->mName.length = ::ai_snprintf(node->mName.data, AI_MAXLEN, "ACGroup_%i", mGroupsCounter++);
             break;
         case Object::Poly:
-            node->mName.length = ::ai_snprintf(node->mName.data, MAXLEN, "ACPoly_%i", mPolysCounter++);
+            node->mName.length = ::ai_snprintf(node->mName.data, AI_MAXLEN, "ACPoly_%i", mPolysCounter++);
             break;
         case Object::Light:
-            node->mName.length = ::ai_snprintf(node->mName.data, MAXLEN, "ACLight_%i", mLightsCounter++);
+            node->mName.length = ::ai_snprintf(node->mName.data, AI_MAXLEN, "ACLight_%i", mLightsCounter++);
             break;
 
             // there shouldn't be more than one world, but we don't care
         case Object::World:
-            node->mName.length = ::ai_snprintf(node->mName.data, MAXLEN, "ACWorld_%i", mWorldsCounter++);
+            node->mName.length = ::ai_snprintf(node->mName.data, AI_MAXLEN, "ACWorld_%i", mWorldsCounter++);
             break;
         }
     }
@@ -761,28 +747,29 @@ void AC3DImporter::InternReadFile(const std::string &pFile,
     std::unique_ptr<IOStream> file(pIOHandler->Open(pFile, "rb"));
 
     // Check whether we can read from the file
-    if (file.get() == nullptr) {
-        throw DeadlyImportError("Failed to open AC3D file " + pFile + ".");
+    if (file == nullptr) {
+        throw DeadlyImportError("Failed to open AC3D file ", pFile, ".");
     }
 
     // allocate storage and copy the contents of the file to a memory buffer
     std::vector<char> mBuffer2;
     TextFileToBuffer(file.get(), mBuffer2);
 
-    buffer = &mBuffer2[0];
+    mBuffer.data = &mBuffer2[0];
+    mBuffer.end = &mBuffer2[0] + mBuffer2.size();
     mNumMeshes = 0;
 
     mLightsCounter = mPolysCounter = mWorldsCounter = mGroupsCounter = 0;
 
-    if (::strncmp(buffer, "AC3D", 4)) {
+    if (::strncmp(mBuffer.data, "AC3D", 4)) {
         throw DeadlyImportError("AC3D: No valid AC3D file, magic sequence not found");
     }
 
     // print the file format version to the console
-    unsigned int version = HexDigitToDecimal(buffer[4]);
+    unsigned int version = HexDigitToDecimal(mBuffer.data[4]);
     char msg[3];
     ASSIMP_itoa10(msg, 3, version);
-    ASSIMP_LOG_INFO_F("AC3D file format version: ", msg);
+    ASSIMP_LOG_INFO("AC3D file format version: ", msg);
 
     std::vector<Material> materials;
     materials.reserve(5);
@@ -794,35 +781,36 @@ void AC3DImporter::InternReadFile(const std::string &pFile,
     mLights = &lights;
 
     while (GetNextLine()) {
-        if (TokenMatch(buffer, "MATERIAL", 8)) {
-            materials.push_back(Material());
+        if (TokenMatch(mBuffer.data, "MATERIAL", 8)) {
+            materials.emplace_back();
             Material &mat = materials.back();
 
             // manually parse the material ... sscanf would use the buldin atof ...
             // Format: (name) rgb %f %f %f  amb %f %f %f  emis %f %f %f  spec %f %f %f  shi %d  trans %f
 
-            buffer = AcSkipToNextToken(buffer);
-            if ('\"' == *buffer) {
-                buffer = AcGetString(buffer, mat.name);
-                buffer = AcSkipToNextToken(buffer);
+            mBuffer.data = AcSkipToNextToken(mBuffer.data, mBuffer.end);
+            if ('\"' == *mBuffer.data) {
+                mBuffer.data = AcGetString(mBuffer.data, mBuffer.end, mat.name);
+                mBuffer.data = AcSkipToNextToken(mBuffer.data, mBuffer.end);
             }
 
-            buffer = TAcCheckedLoadFloatArray(buffer, "rgb", 3, 3, &mat.rgb);
-            buffer = TAcCheckedLoadFloatArray(buffer, "amb", 3, 3, &mat.amb);
-            buffer = TAcCheckedLoadFloatArray(buffer, "emis", 4, 3, &mat.emis);
-            buffer = TAcCheckedLoadFloatArray(buffer, "spec", 4, 3, &mat.spec);
-            buffer = TAcCheckedLoadFloatArray(buffer, "shi", 3, 1, &mat.shin);
-            buffer = TAcCheckedLoadFloatArray(buffer, "trans", 5, 1, &mat.trans);
+            mBuffer.data = TAcCheckedLoadFloatArray(mBuffer.data, mBuffer.end, "rgb", 3, 3, &mat.rgb);
+            mBuffer.data = TAcCheckedLoadFloatArray(mBuffer.data, mBuffer.end, "amb", 3, 3, &mat.amb);
+            mBuffer.data = TAcCheckedLoadFloatArray(mBuffer.data, mBuffer.end, "emis", 4, 3, &mat.emis);
+            mBuffer.data = TAcCheckedLoadFloatArray(mBuffer.data, mBuffer.end, "spec", 4, 3, &mat.spec);
+            mBuffer.data = TAcCheckedLoadFloatArray(mBuffer.data, mBuffer.end, "shi", 3, 1, &mat.shin);
+            mBuffer.data = TAcCheckedLoadFloatArray(mBuffer.data, mBuffer.end, "trans", 5, 1, &mat.trans);
+        } else {
+            LoadObjectSection(rootObjects);
         }
-        LoadObjectSection(rootObjects);
     }
 
-    if (rootObjects.empty() || !mNumMeshes) {
+    if (rootObjects.empty() || mNumMeshes == 0u) {
         throw DeadlyImportError("AC3D: No meshes have been loaded");
     }
     if (materials.empty()) {
         ASSIMP_LOG_WARN("AC3D: No material has been found");
-        materials.push_back(Material());
+        materials.emplace_back();
     }
 
     mNumMeshes += (mNumMeshes >> 2u) + 1;
@@ -833,7 +821,7 @@ void AC3DImporter::InternReadFile(const std::string &pFile,
     materials.reserve(mNumMeshes);
 
     // generate a dummy root if there are multiple objects on the top layer
-    Object *root;
+    Object *root = nullptr;
     if (1 == rootObjects.size())
         root = &rootObjects[0];
     else {
@@ -846,7 +834,7 @@ void AC3DImporter::InternReadFile(const std::string &pFile,
         delete root;
     }
 
-    if (!::strncmp(pScene->mRootNode->mName.data, "Node", 4)) {
+    if (::strncmp(pScene->mRootNode->mName.data, "Node", 4) == 0) {
         pScene->mRootNode->mName.Set("<AC3DWorld>");
     }
 
@@ -865,10 +853,12 @@ void AC3DImporter::InternReadFile(const std::string &pFile,
 
     // copy lights
     pScene->mNumLights = (unsigned int)lights.size();
-    if (lights.size()) {
+    if (!lights.empty()) {
         pScene->mLights = new aiLight *[lights.size()];
         ::memcpy(pScene->mLights, &lights[0], lights.size() * sizeof(void *));
     }
 }
 
+} // namespace Assimp
+
 #endif //!defined ASSIMP_BUILD_NO_AC_IMPORTER

code/AssetLib/AC/ACLoader.h

@@ -2,8 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2020, assimp team
-
+Copyright (c) 2006-2024, assimp team
 
 All rights reserved.
 
@@ -64,7 +63,7 @@ namespace Assimp {
 class AC3DImporter : public BaseImporter {
 public:
     AC3DImporter();
-    ~AC3DImporter();
+    ~AC3DImporter() override;
 
     // Represents an AC3D material
     struct Material {
@@ -117,16 +116,15 @@ public:
             Mask = 0xf,
         };
 
-        inline constexpr uint8_t GetType() const { return (flags & Mask); }
+        inline uint8_t GetType() const { return (flags & Mask); }
     };
 
     // Represents an AC3D object
     struct Object {
         Object() :
                 type(World),
-                name(""),
+                name(),
                 children(),
-                texture(""),
                 texRepeat(1.f, 1.f),
                 texOffset(0.0f, 0.0f),
                 rotation(),
@@ -152,7 +150,8 @@ public:
         std::vector<Object> children;
 
         // texture to be assigned to all surfaces of the object
-        std::string texture;
+        // the .acc format supports up to 4 textures
+        std::vector<std::string> textures;
 
         // texture repat factors (scaling for all coordinates)
         aiVector2D texRepeat, texOffset;
@@ -186,25 +185,25 @@ public:
      * See BaseImporter::CanRead() for details.
      */
     bool CanRead(const std::string &pFile, IOSystem *pIOHandler,
-            bool checkSig) const;
+            bool checkSig) const override;
 
 protected:
     // -------------------------------------------------------------------
     /** Return importer meta information.
      * See #BaseImporter::GetInfo for the details */
-    const aiImporterDesc *GetInfo() const;
+    const aiImporterDesc *GetInfo() const override;
 
     // -------------------------------------------------------------------
     /** Imports the given file into the given scene structure.
      * See BaseImporter::InternReadFile() for details*/
     void InternReadFile(const std::string &pFile, aiScene *pScene,
-            IOSystem *pIOHandler);
+            IOSystem *pIOHandler) override;
 
     // -------------------------------------------------------------------
     /** Called prior to ReadFile().
     * The function is a request to the importer to update its configuration
     * basing on the Importer's configuration property list.*/
-    void SetupProperties(const Importer *pImp);
+    void SetupProperties(const Importer *pImp) override;
 
 private:
     // -------------------------------------------------------------------
@@ -217,7 +216,7 @@ private:
      *  load subobjects, the method returns after a 'kids 0' was
      *  encountered.
      *  @objects List of output objects*/
-    void LoadObjectSection(std::vector<Object> &objects);
+    bool LoadObjectSection(std::vector<Object> &objects);
 
     // -------------------------------------------------------------------
     /** Convert all objects into meshes and nodes.
@@ -243,7 +242,7 @@ private:
 
 private:
     // points to the next data line
-    const char *buffer;
+    aiBuffer mBuffer;
 
     // Configuration option: if enabled, up to two meshes
     // are generated per material: those faces who have

code/AssetLib/AMF/AMFImporter.cpp

@@ -3,9 +3,7 @@
 Open Asset Import Library (assimp)
 ---------------------------------------------------------------------------
 
-Copyright (c) 2006-2020, assimp team
-
-
+Copyright (c) 2006-2024, assimp team
 
 All rights reserved.
 
@@ -41,28 +39,21 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ---------------------------------------------------------------------------
 */
 
-/// \file AMFImporter.cpp
-/// \brief AMF-format files importer for Assimp: main algorithm implementation.
-/// \date 2016
-/// \author smal.root@gmail.com
-
 #ifndef ASSIMP_BUILD_NO_AMF_IMPORTER
 
 // Header files, Assimp.
 #include "AMFImporter.hpp"
-#include "AMFImporter_Macro.hpp"
 
 #include <assimp/DefaultIOSystem.h>
 #include <assimp/fast_atof.h>
+#include <assimp/StringUtils.h>
 
 // Header files, stdlib.
 #include <memory>
 
 namespace Assimp {
 
-/// \var aiImporterDesc AMFImporter::Description
-/// Conastant which hold importer description
-const aiImporterDesc AMFImporter::Description = {
+static constexpr aiImporterDesc Description = {
     "Additive manufacturing file format(AMF) Importer",
     "smalcom",
     "",
@@ -82,7 +73,7 @@ void AMFImporter::Clear() {
     mTexture_Converted.clear();
     // Delete all elements
     if (!mNodeElement_List.empty()) {
-        for (CAMFImporter_NodeElement *ne : mNodeElement_List) {
+        for (AMFNodeElementBase *ne : mNodeElement_List) {
             delete ne;
         }
 
@@ -90,8 +81,14 @@ void AMFImporter::Clear() {
     }
 }
 
+AMFImporter::AMFImporter() AI_NO_EXCEPT :
+        mNodeElement_Cur(nullptr),
+        mXmlParser(nullptr) {
+    // empty
+}
+
 AMFImporter::~AMFImporter() {
-    if (mReader != nullptr) delete mReader;
+    delete mXmlParser;
     // Clear() is accounting if data already is deleted. So, just check again if all data is deleted.
     Clear();
 }
@@ -100,10 +97,12 @@ AMFImporter::~AMFImporter() {
 /************************************************************ Functions: find set ************************************************************/
 /*********************************************************************************************************************************************/
 
-bool AMFImporter::Find_NodeElement(const std::string &pID, const CAMFImporter_NodeElement::EType pType, CAMFImporter_NodeElement **pNodeElement) const {
-    for (CAMFImporter_NodeElement *ne : mNodeElement_List) {
+bool AMFImporter::Find_NodeElement(const std::string &pID, const AMFNodeElementBase::EType pType, AMFNodeElementBase **pNodeElement) const {
+    for (AMFNodeElementBase *ne : mNodeElement_List) {
         if ((ne->ID == pID) && (ne->Type == pType)) {
-            if (pNodeElement != nullptr) *pNodeElement = ne;
+            if (pNodeElement != nullptr) {
+                *pNodeElement = ne;
+            }
 
             return true;
         }
@@ -112,12 +111,13 @@ bool AMFImporter::Find_NodeElement(const std::string &pID, const CAMFImporter_No
     return false;
 }
 
-bool AMFImporter::Find_ConvertedNode(const std::string &pID, std::list<aiNode *> &pNodeList, aiNode **pNode) const {
+bool AMFImporter::Find_ConvertedNode(const std::string &pID, NodeArray &nodeArray, aiNode **pNode) const {
     aiString node_name(pID.c_str());
-
-    for (aiNode *node : pNodeList) {
+    for (aiNode *node : nodeArray) {
         if (node->mName == node_name) {
-            if (pNode != nullptr) *pNode = node;
+            if (pNode != nullptr) {
+                *pNode = node;
+            }
 
             return true;
         }
@@ -129,7 +129,9 @@ bool AMFImporter::Find_ConvertedNode(const std::string &pID, std::list<aiNode *>
 bool AMFImporter::Find_ConvertedMaterial(const std::string &pID, const SPP_Material **pConvertedMaterial) const {
     for (const SPP_Material &mat : mMaterial_Converted) {
         if (mat.ID == pID) {
-            if (pConvertedMaterial != nullptr) *pConvertedMaterial = &mat;
+            if (pConvertedMaterial != nullptr) {
+                *pConvertedMaterial = &mat;
+            }
 
             return true;
         }
@@ -142,174 +144,42 @@ bool AMFImporter::Find_ConvertedMaterial(const std::string &pID, const SPP_Mater
 /************************************************************ Functions: throw set ***********************************************************/
 /*********************************************************************************************************************************************/
 
-void AMFImporter::Throw_CloseNotFound(const std::string &pNode) {
-    throw DeadlyImportError("Close tag for node <" + pNode + "> not found. Seems file is corrupt.");
+void AMFImporter::Throw_CloseNotFound(const std::string &nodeName) {
+    throw DeadlyImportError("Close tag for node <" + nodeName + "> not found. Seems file is corrupt.");
 }
 
-void AMFImporter::Throw_IncorrectAttr(const std::string &pAttrName) {
-    throw DeadlyImportError("Node <" + std::string(mReader->getNodeName()) + "> has incorrect attribute \"" + pAttrName + "\".");
+void AMFImporter::Throw_IncorrectAttr(const std::string &nodeName, const std::string &attrName) {
+    throw DeadlyImportError("Node <" + nodeName + "> has incorrect attribute \"" + attrName + "\".");
 }
 
-void AMFImporter::Throw_IncorrectAttrValue(const std::string &pAttrName) {
-    throw DeadlyImportError("Attribute \"" + pAttrName + "\" in node <" + std::string(mReader->getNodeName()) + "> has incorrect value.");
+void AMFImporter::Throw_IncorrectAttrValue(const std::string &nodeName, const std::string &attrName) {
+    throw DeadlyImportError("Attribute \"" + attrName + "\" in node <" + nodeName + "> has incorrect value.");
 }
 
-void AMFImporter::Throw_MoreThanOnceDefined(const std::string &pNodeType, const std::string &pDescription) {
-    throw DeadlyImportError("\"" + pNodeType + "\" node can be used only once in " + mReader->getNodeName() + ". Description: " + pDescription);
+void AMFImporter::Throw_MoreThanOnceDefined(const std::string &nodeName, const std::string &pNodeType, const std::string &pDescription) {
+    throw DeadlyImportError("\"" + pNodeType + "\" node can be used only once in " + nodeName + ". Description: " + pDescription);
 }
 
 void AMFImporter::Throw_ID_NotFound(const std::string &pID) const {
-    throw DeadlyImportError("Not found node with name \"" + pID + "\".");
+    throw DeadlyImportError("Not found node with name \"", pID, "\".");
 }
 
 /*********************************************************************************************************************************************/
 /************************************************************* Functions: XML set ************************************************************/
 /*********************************************************************************************************************************************/
 
-void AMFImporter::XML_CheckNode_MustHaveChildren() {
-    if (mReader->isEmptyElement()) throw DeadlyImportError(std::string("Node <") + mReader->getNodeName() + "> must have children.");
-}
-
-void AMFImporter::XML_CheckNode_SkipUnsupported(const std::string &pParentNodeName) {
-    static const size_t Uns_Skip_Len = 3;
-    const char *Uns_Skip[Uns_Skip_Len] = { "composite", "edge", "normal" };
-
-    static bool skipped_before[Uns_Skip_Len] = { false, false, false };
-
-    std::string nn(mReader->getNodeName());
-    bool found = false;
-    bool close_found = false;
-    size_t sk_idx;
-
-    for (sk_idx = 0; sk_idx < Uns_Skip_Len; sk_idx++) {
-        if (nn != Uns_Skip[sk_idx]) continue;
-
-        found = true;
-        if (mReader->isEmptyElement()) {
-            close_found = true;
-
-            goto casu_cres;
-        }
-
-        while (mReader->read()) {
-            if ((mReader->getNodeType() == irr::io::EXN_ELEMENT_END) && (nn == mReader->getNodeName())) {
-                close_found = true;
-
-                goto casu_cres;
-            }
-        }
-    } // for(sk_idx = 0; sk_idx < Uns_Skip_Len; sk_idx++)
-
-casu_cres:
-
-    if (!found) throw DeadlyImportError("Unknown node \"" + nn + "\" in " + pParentNodeName + ".");
-    if (!close_found) Throw_CloseNotFound(nn);
-
-    if (!skipped_before[sk_idx]) {
-        skipped_before[sk_idx] = true;
-        ASSIMP_LOG_WARN_F("Skipping node \"", nn, "\" in ", pParentNodeName, ".");
+void AMFImporter::XML_CheckNode_MustHaveChildren(pugi::xml_node &node) {
+    if (node.children().begin() == node.children().end()) {
+        throw DeadlyImportError(std::string("Node <") + node.name() + "> must have children.");
     }
 }
 
-bool AMFImporter::XML_SearchNode(const std::string &pNodeName) {
-    while (mReader->read()) {
-        if ((mReader->getNodeType() == irr::io::EXN_ELEMENT) && XML_CheckNode_NameEqual(pNodeName)) return true;
-    }
-
-    return false;
-}
-
-bool AMFImporter::XML_ReadNode_GetAttrVal_AsBool(const int pAttrIdx) {
-    std::string val(mReader->getAttributeValue(pAttrIdx));
-
-    if ((val == "false") || (val == "0"))
-        return false;
-    else if ((val == "true") || (val == "1"))
-        return true;
-    else
-        throw DeadlyImportError("Bool attribute value can contain \"false\"/\"0\" or \"true\"/\"1\" not the \"" + val + "\"");
-}
-
-float AMFImporter::XML_ReadNode_GetAttrVal_AsFloat(const int pAttrIdx) {
-    std::string val;
-    float tvalf;
-
-    ParseHelper_FixTruncatedFloatString(mReader->getAttributeValue(pAttrIdx), val);
-    fast_atoreal_move(val.c_str(), tvalf, false);
-
-    return tvalf;
-}
-
-uint32_t AMFImporter::XML_ReadNode_GetAttrVal_AsU32(const int pAttrIdx) {
-    return strtoul10(mReader->getAttributeValue(pAttrIdx));
-}
-
-float AMFImporter::XML_ReadNode_GetVal_AsFloat() {
-    std::string val;
-    float tvalf;
-
-    if (!mReader->read()) throw DeadlyImportError("XML_ReadNode_GetVal_AsFloat. No data, seems file is corrupt.");
-    if (mReader->getNodeType() != irr::io::EXN_TEXT) throw DeadlyImportError("XML_ReadNode_GetVal_AsFloat. Invalid type of XML element, seems file is corrupt.");
-
-    ParseHelper_FixTruncatedFloatString(mReader->getNodeData(), val);
-    fast_atoreal_move(val.c_str(), tvalf, false);
-
-    return tvalf;
-}
-
-uint32_t AMFImporter::XML_ReadNode_GetVal_AsU32() {
-    if (!mReader->read()) throw DeadlyImportError("XML_ReadNode_GetVal_AsU32. No data, seems file is corrupt.");
-    if (mReader->getNodeType() != irr::io::EXN_TEXT) throw DeadlyImportError("XML_ReadNode_GetVal_AsU32. Invalid type of XML element, seems file is corrupt.");
-
-    return strtoul10(mReader->getNodeData());
-}
-
-void AMFImporter::XML_ReadNode_GetVal_AsString(std::string &pValue) {
-    if (!mReader->read()) throw DeadlyImportError("XML_ReadNode_GetVal_AsString. No data, seems file is corrupt.");
-    if (mReader->getNodeType() != irr::io::EXN_TEXT)
-        throw DeadlyImportError("XML_ReadNode_GetVal_AsString. Invalid type of XML element, seems file is corrupt.");
-
-    pValue = mReader->getNodeData();
-}
-
-/*********************************************************************************************************************************************/
-/************************************************************ Functions: parse set ***********************************************************/
-/*********************************************************************************************************************************************/
-
-void AMFImporter::ParseHelper_Node_Enter(CAMFImporter_NodeElement *pNode) {
-    mNodeElement_Cur->Child.push_back(pNode); // add new element to current element child list.
-    mNodeElement_Cur = pNode; // switch current element to new one.
-}
-
-void AMFImporter::ParseHelper_Node_Exit() {
-    // check if we can walk up.
-    if (mNodeElement_Cur != nullptr) mNodeElement_Cur = mNodeElement_Cur->Parent;
-}
-
-void AMFImporter::ParseHelper_FixTruncatedFloatString(const char *pInStr, std::string &pOutString) {
-    size_t instr_len;
-
-    pOutString.clear();
-    instr_len = strlen(pInStr);
-    if (!instr_len) return;
-
-    pOutString.reserve(instr_len * 3 / 2);
-    // check and correct floats in format ".x". Must be "x.y".
-    if (pInStr[0] == '.') pOutString.push_back('0');
-
-    pOutString.push_back(pInStr[0]);
-    for (size_t ci = 1; ci < instr_len; ci++) {
-        if ((pInStr[ci] == '.') && ((pInStr[ci - 1] == ' ') || (pInStr[ci - 1] == '-') || (pInStr[ci - 1] == '+') || (pInStr[ci - 1] == '\t'))) {
-            pOutString.push_back('0');
-            pOutString.push_back('.');
-        } else {
-            pOutString.push_back(pInStr[ci]);
-        }
-    }
+bool AMFImporter::XML_SearchNode(const std::string &nodeName) {
+    return nullptr != mXmlParser->findNode(nodeName);
 }
 
 static bool ParseHelper_Decode_Base64_IsBase64(const char pChar) {
-    return (isalnum(pChar) || (pChar == '+') || (pChar == '/'));
+    return (isalnum((unsigned char)pChar) || (pChar == '+') || (pChar == '/'));
 }
 
 void AMFImporter::ParseHelper_Decode_Base64(const std::string &pInputBase64, std::vector<uint8_t> &pOutputData) const {
@@ -321,7 +191,10 @@ void AMFImporter::ParseHelper_Decode_Base64(const std::string &pInputBase64, std
     uint8_t arr4[4], arr3[3];
 
     // check input data
-    if (pInputBase64.size() % 4) throw DeadlyImportError("Base64-encoded data must have size multiply of four.");
+    if (pInputBase64.size() % 4) {
+        throw DeadlyImportError("Base64-encoded data must have size multiply of four.");
+    }
+
     // prepare output place
     pOutputData.clear();
     pOutputData.reserve(pInputBase64.size() / 4 * 3);
@@ -362,29 +235,34 @@ void AMFImporter::ParseHelper_Decode_Base64(const std::string &pInputBase64, std
 }
 
 void AMFImporter::ParseFile(const std::string &pFile, IOSystem *pIOHandler) {
-    irr::io::IrrXMLReader *OldReader = mReader; // store current XMLreader.
     std::unique_ptr<IOStream> file(pIOHandler->Open(pFile, "rb"));
 
     // Check whether we can read from the file
-    if (file.get() == nullptr) {
-        throw DeadlyImportError("Failed to open AMF file " + pFile + ".");
+    if (file == nullptr) {
+        throw DeadlyImportError("Failed to open AMF file ", pFile, ".");
     }
 
-    // generate a XML reader for it
-    std::unique_ptr<CIrrXML_IOStreamReader> mIOWrapper(new CIrrXML_IOStreamReader(file.get()));
-    mReader = irr::io::createIrrXMLReader(mIOWrapper.get());
-    if (!mReader) throw DeadlyImportError("Failed to create XML reader for file" + pFile + ".");
-    //
-    // start reading
-    // search for root tag <amf>
-    if (XML_SearchNode("amf"))
-        ParseNode_Root();
-    else
-        throw DeadlyImportError("Root node \"amf\" not found.");
+    mXmlParser = new XmlParser();
+    if (!mXmlParser->parse(file.get())) {
+        delete mXmlParser;
+        mXmlParser = nullptr;
+        throw DeadlyImportError("Failed to create XML reader for file ", pFile, ".");
+    }
 
-    delete mReader;
-    // restore old XMLreader
-    mReader = OldReader;
+    // Start reading, search for root tag <amf>
+    if (!mXmlParser->hasNode("amf")) {
+        throw DeadlyImportError("Root node \"amf\" not found.");
+    }
+    ParseNode_Root();
+} // namespace Assimp
+
+void AMFImporter::ParseHelper_Node_Enter(AMFNodeElementBase *node) {
+    mNodeElement_Cur->Child.push_back(node); // add new element to current element child list.
+    mNodeElement_Cur = node;
+}
+
+void AMFImporter::ParseHelper_Node_Exit() {
+    if (mNodeElement_Cur != nullptr) mNodeElement_Cur = mNodeElement_Cur->Parent;
 }
 
 // <amf
@@ -395,54 +273,49 @@ void AMFImporter::ParseFile(const std::string &pFile, IOSystem *pIOHandler) {
 // Root XML element.
 // Multi elements - No.
 void AMFImporter::ParseNode_Root() {
-    std::string unit, version;
-    CAMFImporter_NodeElement *ne(nullptr);
+    AMFNodeElementBase *ne = nullptr;
+    XmlNode *root = mXmlParser->findNode("amf");
+    if (nullptr == root) {
+        throw DeadlyImportError("Root node \"amf\" not found.");
+    }
+    XmlNode node = *root;
+    mUnit = ai_tolower(std::string(node.attribute("unit").as_string()));
+
+    mVersion = node.attribute("version").as_string();
 
     // Read attributes for node <amf>.
-    MACRO_ATTRREAD_LOOPBEG;
-    MACRO_ATTRREAD_CHECK_RET("unit", unit, mReader->getAttributeValue);
-    MACRO_ATTRREAD_CHECK_RET("version", version, mReader->getAttributeValue);
-    MACRO_ATTRREAD_LOOPEND_WSKIP;
-
     // Check attributes
     if (!mUnit.empty()) {
-        if ((mUnit != "inch") && (mUnit != "millimeter") && (mUnit != "meter") && (mUnit != "feet") && (mUnit != "micron")) Throw_IncorrectAttrValue("unit");
+        if ((mUnit != "inch") && (mUnit != "millimeters") && (mUnit != "millimeter") && (mUnit != "meter") && (mUnit != "feet") && (mUnit != "micron")) {
+            Throw_IncorrectAttrValue("unit", mUnit);
+        }
     }
 
     // create root node element.
-    ne = new CAMFImporter_NodeElement_Root(nullptr);
+    ne = new AMFRoot(nullptr);
+
     mNodeElement_Cur = ne; // set first "current" element
     // and assign attribute's values
-    ((CAMFImporter_NodeElement_Root *)ne)->Unit = unit;
-    ((CAMFImporter_NodeElement_Root *)ne)->Version = version;
+    ((AMFRoot *)ne)->Unit = mUnit;
+    ((AMFRoot *)ne)->Version = mVersion;
 
     // Check for child nodes
-    if (!mReader->isEmptyElement()) {
-        MACRO_NODECHECK_LOOPBEGIN("amf");
-        if (XML_CheckNode_NameEqual("object")) {
-            ParseNode_Object();
-            continue;
+    for (XmlNode &currentNode : node.children() ) {
+        const std::string currentName = currentNode.name();
+        if (currentName == "object") {
+            ParseNode_Object(currentNode);
+        } else if (currentName == "material") {
+            ParseNode_Material(currentNode);
+        } else if (currentName == "texture") {
+            ParseNode_Texture(currentNode);
+        } else if (currentName == "constellation") {
+            ParseNode_Constellation(currentNode);
+        } else if (currentName == "metadata") {
+            ParseNode_Metadata(currentNode);
         }
-        if (XML_CheckNode_NameEqual("material")) {
-            ParseNode_Material();
-            continue;
-        }
-        if (XML_CheckNode_NameEqual("texture")) {
-            ParseNode_Texture();
-            continue;
-        }
-        if (XML_CheckNode_NameEqual("constellation")) {
-            ParseNode_Constellation();
-            continue;
-        }
-        if (XML_CheckNode_NameEqual("metadata")) {
-            ParseNode_Metadata();
-            continue;
-        }
-        MACRO_NODECHECK_LOOPEND("amf");
-        mNodeElement_Cur = ne; // force restore "current" element
-    } // if(!mReader->isEmptyElement())
-
+        mNodeElement_Cur = ne;
+    }
+    mNodeElement_Cur = ne; // force restore "current" element
     mNodeElement_List.push_back(ne); // add to node element list because its a new object in graph.
 }
 
@@ -453,40 +326,34 @@ void AMFImporter::ParseNode_Root() {
 // A collection of objects or constellations with specific relative locations.
 // Multi elements - Yes.
 // Parent element - <amf>.
-void AMFImporter::ParseNode_Constellation() {
+void AMFImporter::ParseNode_Constellation(XmlNode &node) {
     std::string id;
-    CAMFImporter_NodeElement *ne(nullptr);
-
-    // Read attributes for node <constellation>.
-    MACRO_ATTRREAD_LOOPBEG;
-    MACRO_ATTRREAD_CHECK_RET("id", id, mReader->getAttributeValue);
-    MACRO_ATTRREAD_LOOPEND;
+    id = node.attribute("id").as_string();
 
     // create and if needed - define new grouping object.
-    ne = new CAMFImporter_NodeElement_Constellation(mNodeElement_Cur);
+    AMFNodeElementBase *ne = new AMFConstellation(mNodeElement_Cur);
 
-    CAMFImporter_NodeElement_Constellation &als = *((CAMFImporter_NodeElement_Constellation *)ne); // alias for convenience
+    AMFConstellation &als = *((AMFConstellation *)ne); // alias for convenience
+
+    if (!id.empty()) {
+        als.ID = id;
+    }
 
-    if (!id.empty()) als.ID = id;
     // Check for child nodes
-    if (!mReader->isEmptyElement()) {
+    if (!node.empty()) {
         ParseHelper_Node_Enter(ne);
-        MACRO_NODECHECK_LOOPBEGIN("constellation");
-        if (XML_CheckNode_NameEqual("instance")) {
-            ParseNode_Instance();
-            continue;
+        for (XmlNode currentNode = node.first_child(); currentNode; currentNode = currentNode.next_sibling()) {
+            std::string name = currentNode.name();
+            if (name == "instance") {
+                ParseNode_Instance(currentNode);
+            } else if (name == "metadata") {
+                ParseNode_Metadata(currentNode);
+            }
         }
-        if (XML_CheckNode_NameEqual("metadata")) {
-            ParseNode_Metadata();
-            continue;
-        }
-        MACRO_NODECHECK_LOOPEND("constellation");
         ParseHelper_Node_Exit();
-    } // if(!mReader->isEmptyElement())
-    else {
-        mNodeElement_Cur->Child.push_back(ne); // Add element to child list of current element
-    } // if(!mReader->isEmptyElement()) else
-
+    } else {
+        mNodeElement_Cur->Child.push_back(ne);
+    }
     mNodeElement_List.push_back(ne); // and to node element list because its a new object in graph.
 }
 
@@ -497,47 +364,43 @@ void AMFImporter::ParseNode_Constellation() {
 // A collection of objects or constellations with specific relative locations.
 // Multi elements - Yes.
 // Parent element - <amf>.
-void AMFImporter::ParseNode_Instance() {
-    std::string objectid;
-    CAMFImporter_NodeElement *ne(nullptr);
+void AMFImporter::ParseNode_Instance(XmlNode &node) {
+    AMFNodeElementBase *ne(nullptr);
 
     // Read attributes for node <constellation>.
-    MACRO_ATTRREAD_LOOPBEG;
-    MACRO_ATTRREAD_CHECK_RET("objectid", objectid, mReader->getAttributeValue);
-    MACRO_ATTRREAD_LOOPEND;
+    std::string objectid = node.attribute("objectid").as_string();
 
     // used object id must be defined, check that.
-    if (objectid.empty()) throw DeadlyImportError("\"objectid\" in <instance> must be defined.");
+    if (objectid.empty()) {
+        throw DeadlyImportError("\"objectid\" in <instance> must be defined.");
+    }
     // create and define new grouping object.
-    ne = new CAMFImporter_NodeElement_Instance(mNodeElement_Cur);
-
-    CAMFImporter_NodeElement_Instance &als = *((CAMFImporter_NodeElement_Instance *)ne); // alias for convenience
-
+    ne = new AMFInstance(mNodeElement_Cur);
+    AMFInstance &als = *((AMFInstance *)ne);
     als.ObjectID = objectid;
-    // Check for child nodes
-    if (!mReader->isEmptyElement()) {
-        bool read_flag[6] = { false, false, false, false, false, false };
 
-        als.Delta.Set(0, 0, 0);
-        als.Rotation.Set(0, 0, 0);
+    if (!node.empty()) {
         ParseHelper_Node_Enter(ne);
-        MACRO_NODECHECK_LOOPBEGIN("instance");
-        MACRO_NODECHECK_READCOMP_F("deltax", read_flag[0], als.Delta.x);
-        MACRO_NODECHECK_READCOMP_F("deltay", read_flag[1], als.Delta.y);
-        MACRO_NODECHECK_READCOMP_F("deltaz", read_flag[2], als.Delta.z);
-        MACRO_NODECHECK_READCOMP_F("rx", read_flag[3], als.Rotation.x);
-        MACRO_NODECHECK_READCOMP_F("ry", read_flag[4], als.Rotation.y);
-        MACRO_NODECHECK_READCOMP_F("rz", read_flag[5], als.Rotation.z);
-        MACRO_NODECHECK_LOOPEND("instance");
+        for (auto &currentNode : node.children()) {
+            const std::string &currentName = currentNode.name();
+            if (currentName == "deltax") {
+                XmlParser::getValueAsReal(currentNode, als.Delta.x);
+            } else if (currentName == "deltay") {
+                XmlParser::getValueAsReal(currentNode, als.Delta.y);
+            } else if (currentName == "deltaz") {
+                XmlParser::getValueAsReal(currentNode, als.Delta.z);
+            } else if (currentName == "rx") {
+                XmlParser::getValueAsReal(currentNode, als.Delta.x);
+            } else if (currentName == "ry") {
+                XmlParser::getValueAsReal(currentNode, als.Delta.y);
+            } else if (currentName == "rz") {
+                XmlParser::getValueAsReal(currentNode, als.Delta.z);
+            }
+        }
         ParseHelper_Node_Exit();
-        // also convert degrees to radians.
-        als.Rotation.x = AI_MATH_PI_F * als.Rotation.x / 180.0f;
-        als.Rotation.y = AI_MATH_PI_F * als.Rotation.y / 180.0f;
-        als.Rotation.z = AI_MATH_PI_F * als.Rotation.z / 180.0f;
-    } // if(!mReader->isEmptyElement())
-    else {
-        mNodeElement_Cur->Child.push_back(ne); // Add element to child list of current element
-    } // if(!mReader->isEmptyElement()) else
+    } else {
+        mNodeElement_Cur->Child.push_back(ne);
+    }
 
     mNodeElement_List.push_back(ne); // and to node element list because its a new object in graph.
 }
@@ -549,51 +412,38 @@ void AMFImporter::ParseNode_Instance() {
 // An object definition.
 // Multi elements - Yes.
 // Parent element - <amf>.
-void AMFImporter::ParseNode_Object() {
-    std::string id;
-    CAMFImporter_NodeElement *ne(nullptr);
+void AMFImporter::ParseNode_Object(XmlNode &node) {
+    AMFNodeElementBase *ne = nullptr;
 
     // Read attributes for node <object>.
-    MACRO_ATTRREAD_LOOPBEG;
-    MACRO_ATTRREAD_CHECK_RET("id", id, mReader->getAttributeValue);
-    MACRO_ATTRREAD_LOOPEND;
+    std::string id = node.attribute("id").as_string();
 
     // create and if needed - define new geometry object.
-    ne = new CAMFImporter_NodeElement_Object(mNodeElement_Cur);
+    ne = new AMFObject(mNodeElement_Cur);
 
-    CAMFImporter_NodeElement_Object &als = *((CAMFImporter_NodeElement_Object *)ne); // alias for convenience
+    AMFObject &als = *((AMFObject *)ne); // alias for convenience
+
+    if (!id.empty()) {
+        als.ID = id;
+    }
 
-    if (!id.empty()) als.ID = id;
     // Check for child nodes
-    if (!mReader->isEmptyElement()) {
-        bool col_read = false;
-
+    if (!node.empty()) {
         ParseHelper_Node_Enter(ne);
-        MACRO_NODECHECK_LOOPBEGIN("object");
-        if (XML_CheckNode_NameEqual("color")) {
-            // Check if color already defined for object.
-            if (col_read) Throw_MoreThanOnceDefined("color", "Only one color can be defined for <object>.");
-            // read data and set flag about it
-            ParseNode_Color();
-            col_read = true;
-
-            continue;
+        for (auto &currentNode : node.children()) {
+            const std::string &currentName = currentNode.name();
+            if (currentName == "color") {
+                ParseNode_Color(currentNode);
+            } else if (currentName == "mesh") {
+                ParseNode_Mesh(currentNode);
+            } else if (currentName == "metadata") {
+                ParseNode_Metadata(currentNode);
+            }
         }
-
-        if (XML_CheckNode_NameEqual("mesh")) {
-            ParseNode_Mesh();
-            continue;
-        }
-        if (XML_CheckNode_NameEqual("metadata")) {
-            ParseNode_Metadata();
-            continue;
-        }
-        MACRO_NODECHECK_LOOPEND("object");
         ParseHelper_Node_Exit();
-    } // if(!mReader->isEmptyElement())
-    else {
+    } else {
         mNodeElement_Cur->Child.push_back(ne); // Add element to child list of current element
-    } // if(!mReader->isEmptyElement()) else
+    }
 
     mNodeElement_List.push_back(ne); // and to node element list because its a new object in graph.
 }
@@ -616,46 +466,23 @@ void AMFImporter::ParseNode_Object() {
 // "Revision" - specifies the revision of the entity
 // "Tolerance" - specifies the desired manufacturing tolerance of the entity in entity's unit system
 // "Volume" - specifies the total volume of the entity, in the entity's unit system, to be used for verification (object and volume only)
-void AMFImporter::ParseNode_Metadata() {
-    std::string type, value;
-    CAMFImporter_NodeElement *ne(nullptr);
+void AMFImporter::ParseNode_Metadata(XmlNode &node) {
+    AMFNodeElementBase *ne = nullptr;
+
+    std::string type = node.attribute("type").as_string(), value;
+    XmlParser::getValueAsString(node, value);
 
     // read attribute
-    MACRO_ATTRREAD_LOOPBEG;
-    MACRO_ATTRREAD_CHECK_RET("type", type, mReader->getAttributeValue);
-    MACRO_ATTRREAD_LOOPEND;
-    // and value of node.
-    value = mReader->getNodeData();
-    // Create node element and assign read data.
-    ne = new CAMFImporter_NodeElement_Metadata(mNodeElement_Cur);
-    ((CAMFImporter_NodeElement_Metadata *)ne)->Type = type;
-    ((CAMFImporter_NodeElement_Metadata *)ne)->Value = value;
+    ne = new AMFMetadata(mNodeElement_Cur);
+    ((AMFMetadata *)ne)->Type = type;
+    ((AMFMetadata *)ne)->Value = value;
     mNodeElement_Cur->Child.push_back(ne); // Add element to child list of current element
     mNodeElement_List.push_back(ne); // and to node element list because its a new object in graph.
 }
 
-/*********************************************************************************************************************************************/
-/******************************************************** Functions: BaseImporter set ********************************************************/
-/*********************************************************************************************************************************************/
-
-bool AMFImporter::CanRead(const std::string &pFile, IOSystem *pIOHandler, bool pCheckSig) const {
-    const std::string extension = GetExtension(pFile);
-
-    if (extension == "amf") {
-        return true;
-    }
-
-    if (!extension.length() || pCheckSig) {
-        const char *tokens[] = { "<amf" };
-
-        return SearchFileHeaderForToken(pIOHandler, pFile, tokens, 1);
-    }
-
-    return false;
-}
-
-void AMFImporter::GetExtensionList(std::set<std::string> &pExtensionList) {
-    pExtensionList.insert("amf");
+bool AMFImporter::CanRead(const std::string &pFile, IOSystem *pIOHandler, bool /*pCheckSig*/) const {
+    static const char *tokens[] = { "<amf" };
+    return SearchFileHeaderForToken(pIOHandler, pFile, tokens, AI_COUNT_OF(tokens));
 }
 
 const aiImporterDesc *AMFImporter::GetInfo() const {

code/AssetLib/AMF/AMFImporter.hpp

@@ -3,9 +3,7 @@
 Open Asset Import Library (assimp)
 ---------------------------------------------------------------------------
 
-Copyright (c) 2006-2020, assimp team
-
-
+Copyright (c) 2006-2024, assimp team
 
 All rights reserved.
 
@@ -54,11 +52,11 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "AMFImporter_Node.hpp"
 
 // Header files, Assimp.
-#include <assimp/DefaultLogger.hpp>
-#include <assimp/importerdesc.h>
 #include "assimp/types.h"
 #include <assimp/BaseImporter.h>
-#include <assimp/irrXMLWrapper.h>
+#include <assimp/XmlParser.h>
+#include <assimp/importerdesc.h>
+#include <assimp/DefaultLogger.hpp>
 
 // Header files, stdlib.
 #include <set>
@@ -100,23 +98,41 @@ namespace Assimp {
 ///            old - <map> and children <u1>, <u2>, <u3>, <v1>, <v2>, <v3>
 ///
 class AMFImporter : public BaseImporter {
-private:
-    struct SPP_Material;// forward declaration
+    using AMFMetaDataArray = std::vector<AMFMetadata *>;
+    using MeshArray = std::vector<aiMesh *>;
+    using NodeArray = std::vector<aiNode *>;
 
-                        /// \struct SPP_Composite
-                        /// Data type for post-processing step. More suitable container for part of material's composition.
+public:
+    struct SPP_Material;
+
+    /// Data type for post-processing step. More suitable container for part of material's composition.
     struct SPP_Composite {
-        SPP_Material* Material;///< Pointer to material - part of composition.
-        std::string Formula;///< Formula for calculating ratio of \ref Material.
+        SPP_Material *Material; ///< Pointer to material - part of composition.
+        std::string Formula; ///< Formula for calculating ratio of \ref Material.
+    };
+
+    /// Data type for post-processing step. More suitable container for texture.
+    struct SPP_Texture {
+        std::string ID;
+        size_t Width, Height, Depth;
+        bool Tiled;
+        char FormatHint[9]; // 8 for string + 1 for terminator.
+        uint8_t *Data;
+    };
+
+    /// Data type for post-processing step. Contain face data.
+    struct SComplexFace {
+        aiFace Face; ///< Face vertices.
+        const AMFColor *Color; ///< Face color. Equal to nullptr if color is not set for the face.
+        const AMFTexMap *TexMap; ///< Face texture mapping data. Equal to nullptr if texture mapping is not set for the face.
     };
 
-    /// \struct SPP_Material
     /// Data type for post-processing step. More suitable container for material.
     struct SPP_Material {
-        std::string ID;///< Material ID.
-        std::list<CAMFImporter_NodeElement_Metadata*> Metadata;///< Metadata of material.
-        CAMFImporter_NodeElement_Color* Color;///< Color of material.
-        std::list<SPP_Composite> Composition;///< List of child materials if current material is composition of few another.
+        std::string ID; ///< Material ID.
+        std::list<AMFMetadata *> Metadata; ///< Metadata of material.
+        AMFColor *Color; ///< Color of material.
+        std::list<SPP_Composite> Composition; ///< List of child materials if current material is composition of few another.
 
         /// Return color calculated for specified coordinate.
         /// \param [in] pX - "x" coordinate.
@@ -126,307 +142,167 @@ private:
         aiColor4D GetColor(const float pX, const float pY, const float pZ) const;
     };
 
-    /// Data type for post-processing step. More suitable container for texture.
-    struct SPP_Texture {
-        std::string ID;
-        size_t      Width, Height, Depth;
-        bool        Tiled;
-        char        FormatHint[9];// 8 for string + 1 for terminator.
-        uint8_t    *Data;
-    };
+    /// Default constructor.
+    AMFImporter() AI_NO_EXCEPT;
 
-    /// Data type for post-processing step. Contain face data.
-    struct SComplexFace {
-        aiFace Face;///< Face vertices.
-        const CAMFImporter_NodeElement_Color* Color;///< Face color. Equal to nullptr if color is not set for the face.
-        const CAMFImporter_NodeElement_TexMap* TexMap;///< Face texture mapping data. Equal to nullptr if texture mapping is not set for the face.
-    };
+    /// Default destructor.
+    ~AMFImporter() override;
 
-	/// Clear all temporary data.
-	void Clear();
-
-	/***********************************************/
-	/************* Functions: find set *************/
-	/***********************************************/
-
-	/// Find specified node element in node elements list ( \ref mNodeElement_List).
-	/// \param [in] pID - ID(name) of requested node element.
-	/// \param [in] pType - type of node element.
-	/// \param [out] pNode - pointer to pointer to item found.
-	/// \return true - if the node element is found, else - false.
-	bool Find_NodeElement(const std::string& pID, const CAMFImporter_NodeElement::EType pType, CAMFImporter_NodeElement** pNodeElement) const;
-
-	/// Find requested aiNode in node list.
-	/// \param [in] pID - ID(name) of requested node.
-	/// \param [in] pNodeList - list of nodes where to find the node.
-	/// \param [out] pNode - pointer to pointer to item found.
-	/// \return true - if the node is found, else - false.
-	bool Find_ConvertedNode(const std::string& pID, std::list<aiNode*>& pNodeList, aiNode** pNode) const;
-
-	/// Find material in list for converted materials. Use at postprocessing step.
-	/// \param [in] pID - material ID.
-	/// \param [out] pConvertedMaterial - pointer to found converted material (\ref SPP_Material).
-	/// \return true - if the material is found, else - false.
-	bool Find_ConvertedMaterial(const std::string& pID, const SPP_Material** pConvertedMaterial) const;
-
-    /// Find texture in list of converted textures. Use at postprocessing step,
-	/// \param [in] pID_R - ID of source "red" texture.
-	/// \param [in] pID_G - ID of source "green" texture.
-	/// \param [in] pID_B - ID of source "blue" texture.
-	/// \param [in] pID_A - ID of source "alpha" texture. Use empty string to find RGB-texture.
-	/// \param [out] pConvertedTextureIndex - pointer where index in list of found texture will be written. If equivalent to nullptr then nothing will be
-	/// written.
-	/// \return true - if the texture is found, else - false.
-	bool Find_ConvertedTexture(const std::string& pID_R, const std::string& pID_G, const std::string& pID_B, const std::string& pID_A,
-								uint32_t* pConvertedTextureIndex = nullptr) const;
-
-
-	/// Get data stored in <vertices> and place it to arrays.
-	/// \param [in] pNodeElement - reference to node element which kept <object> data.
-	/// \param [in] pVertexCoordinateArray - reference to vertices coordinates kept in <vertices>.
-	/// \param [in] pVertexColorArray - reference to vertices colors for all <vertex's. If color for vertex is not set then corresponding member of array
-	/// contain nullptr.
-	void PostprocessHelper_CreateMeshDataArray(const CAMFImporter_NodeElement_Mesh& pNodeElement, std::vector<aiVector3D>& pVertexCoordinateArray,
-												std::vector<CAMFImporter_NodeElement_Color*>& pVertexColorArray) const;
-
-	/// Return converted texture ID which related to specified source textures ID's. If converted texture does not exist then it will be created and ID on new
-	/// converted texture will be returned. Conversion: set of textures from \ref CAMFImporter_NodeElement_Texture to one \ref SPP_Texture and place it
-	/// to converted textures list.
-	/// Any of source ID's can be absent(empty string) or even one ID only specified. But at least one ID must be specified.
-	/// \param [in] pID_R - ID of source "red" texture.
-	/// \param [in] pID_G - ID of source "green" texture.
-	/// \param [in] pID_B - ID of source "blue" texture.
-	/// \param [in] pID_A - ID of source "alpha" texture.
-	/// \return index of the texture in array of the converted textures.
-	size_t PostprocessHelper_GetTextureID_Or_Create(const std::string& pID_R, const std::string& pID_G, const std::string& pID_B, const std::string& pID_A);
-
-	/// Separate input list by texture IDs. This step is needed because aiMesh can contain mesh which is use only one texture (or set: diffuse, bump etc).
-	/// \param [in] pInputList - input list with faces. Some of them can contain color or texture mapping, or both of them, or nothing. Will be cleared after
-	/// processing.
-	/// \param [out] pOutputList_Separated - output list of the faces lists. Separated faces list by used texture IDs. Will be cleared before processing.
-	void PostprocessHelper_SplitFacesByTextureID(std::list<SComplexFace>& pInputList, std::list<std::list<SComplexFace> >& pOutputList_Separated);
-
-	/// Check if child elements of node element is metadata and add it to scene node.
-	/// \param [in] pMetadataList - reference to list with collected metadata.
-	/// \param [out] pSceneNode - scene node in which metadata will be added.
-	void Postprocess_AddMetadata(const std::list<CAMFImporter_NodeElement_Metadata*>& pMetadataList, aiNode& pSceneNode) const;
-
-	/// To create aiMesh and aiNode for it from <object>.
-	/// \param [in] pNodeElement - reference to node element which kept <object> data.
-	/// \param [out] pMeshList - reference to a list with all aiMesh of the scene.
-	/// \param [out] pSceneNode - pointer to place where new aiNode will be created.
-	void Postprocess_BuildNodeAndObject(const CAMFImporter_NodeElement_Object& pNodeElement, std::list<aiMesh*>& pMeshList, aiNode** pSceneNode);
-
-	/// Create mesh for every <volume> in <mesh>.
-	/// \param [in] pNodeElement - reference to node element which kept <mesh> data.
-	/// \param [in] pVertexCoordinateArray - reference to vertices coordinates for all <volume>'s.
-	/// \param [in] pVertexColorArray - reference to vertices colors for all <volume>'s. If color for vertex is not set then corresponding member of array
-	/// contain nullptr.
-	/// \param [in] pObjectColor - pointer to colors for <object>. If color is not set then argument contain nullptr.
-	/// \param [in] pMaterialList - reference to a list with defined materials.
-	/// \param [out] pMeshList - reference to a list with all aiMesh of the scene.
-	/// \param [out] pSceneNode - reference to aiNode which will own new aiMesh's.
-	void Postprocess_BuildMeshSet(const CAMFImporter_NodeElement_Mesh& pNodeElement, const std::vector<aiVector3D>& pVertexCoordinateArray,
-									const std::vector<CAMFImporter_NodeElement_Color*>& pVertexColorArray, const CAMFImporter_NodeElement_Color* pObjectColor,
-									std::list<aiMesh*>& pMeshList, aiNode& pSceneNode);
-
-	/// Convert material from \ref CAMFImporter_NodeElement_Material to \ref SPP_Material.
-	/// \param [in] pMaterial - source CAMFImporter_NodeElement_Material.
-	void Postprocess_BuildMaterial(const CAMFImporter_NodeElement_Material& pMaterial);
-
-	/// Create and add to aiNode's list new part of scene graph defined by <constellation>.
-	/// \param [in] pConstellation - reference to <constellation> node.
-	/// \param [out] pNodeList - reference to aiNode's list.
-	void Postprocess_BuildConstellation(CAMFImporter_NodeElement_Constellation& pConstellation, std::list<aiNode*>& pNodeList) const;
-
-	/// Build Assimp scene graph in aiScene from collected data.
-	/// \param [out] pScene - pointer to aiScene where tree will be built.
-	void Postprocess_BuildScene(aiScene* pScene);
-
-
-	/// Call that function when close tag of node not found and exception must be raised.
-	/// E.g.:
-	/// <amf>
-	///     <object>
-	/// </amf> <!--- object not closed --->
-	/// \throw DeadlyImportError.
-	/// \param [in] pNode - node name in which exception happened.
-	void Throw_CloseNotFound(const std::string& pNode);
-
-	/// Call that function when attribute name is incorrect and exception must be raised.
-	/// \param [in] pAttrName - attribute name.
-	/// \throw DeadlyImportError.
-	void Throw_IncorrectAttr(const std::string& pAttrName);
-
-	/// Call that function when attribute value is incorrect and exception must be raised.
-	/// \param [in] pAttrName - attribute name.
-	/// \throw DeadlyImportError.
-	void Throw_IncorrectAttrValue(const std::string& pAttrName);
-
-	/// Call that function when some type of nodes are defined twice or more when must be used only once and exception must be raised.
-	/// E.g.:
-	/// <object>
-	///     <color>...    <!--- color defined --->
-	///     <color>...    <!--- color defined again --->
-	/// </object>
-	/// \throw DeadlyImportError.
-	/// \param [in] pNodeType - type of node which defined one more time.
-	/// \param [in] pDescription - message about error. E.g. what the node defined while exception raised.
-	void Throw_MoreThanOnceDefined(const std::string& pNodeType, const std::string& pDescription);
-
-	/// Call that function when referenced element ID are not found in graph and exception must be raised.
-	/// \param [in] pID - ID of of element which not found.
-	/// \throw DeadlyImportError.
-	void Throw_ID_NotFound(const std::string& pID) const;
-
-	/// Check if current node have children: <node>...</node>. If not then exception will throwed.
-	void XML_CheckNode_MustHaveChildren();
-
-	/// Check if current node name is equal to pNodeName.
-	/// \param [in] pNodeName - name for checking.
-	/// return true if current node name is equal to pNodeName, else - false.
-	bool XML_CheckNode_NameEqual(const std::string& pNodeName) { return mReader->getNodeName() == pNodeName; }
-
-	/// Skip unsupported node and report about that. Depend on node name can be skipped begin tag of node all whole node.
-	/// \param [in] pParentNodeName - parent node name. Used for reporting.
-	void XML_CheckNode_SkipUnsupported(const std::string& pParentNodeName);
-
-	/// Search for specified node in file. XML file read pointer(mReader) will point to found node or file end after search is end.
-	/// \param [in] pNodeName - requested node name.
-	/// return true - if node is found, else - false.
-	bool XML_SearchNode(const std::string& pNodeName);
-
-	/// Read attribute value.
-	/// \param [in] pAttrIdx - attribute index (\ref mReader->getAttribute* set).
-	/// \return read data.
-	bool XML_ReadNode_GetAttrVal_AsBool(const int pAttrIdx);
-
-	/// Read attribute value.
-	/// \param [in] pAttrIdx - attribute index (\ref mReader->getAttribute* set).
-	/// \return read data.
-	float XML_ReadNode_GetAttrVal_AsFloat(const int pAttrIdx);
-
-	/// Read attribute value.
-	/// \param [in] pAttrIdx - attribute index (\ref mReader->getAttribute* set).
-	/// \return read data.
-	uint32_t XML_ReadNode_GetAttrVal_AsU32(const int pAttrIdx);
-
-	/// Read node value.
-	/// \return read data.
-	float XML_ReadNode_GetVal_AsFloat();
-
-	/// Read node value.
-	/// \return read data.
-	uint32_t XML_ReadNode_GetVal_AsU32();
-
-	/// Read node value.
-	/// \return read data.
-	void XML_ReadNode_GetVal_AsString(std::string& pValue);
-
-	/// Make pNode as current and enter deeper for parsing child nodes. At end \ref ParseHelper_Node_Exit must be called.
-	/// \param [in] pNode - new current node.
-	void ParseHelper_Node_Enter(CAMFImporter_NodeElement* pNode);
-
-	/// This function must be called when exiting from grouping node. \ref ParseHelper_Group_Begin.
-	void ParseHelper_Node_Exit();
-
-	/// Attribute values of floating point types can take form ".x"(without leading zero). irrXMLReader can not read this form of values and it
-	/// must be converted to right form - "0.xxx".
-	/// \param [in] pInStr - pointer to input string which can contain incorrect form of values.
-	/// \param [out[ pOutString - output string with right form of values.
-	void ParseHelper_FixTruncatedFloatString(const char* pInStr, std::string& pOutString);
-
-	/// Decode Base64-encoded data.
-	/// \param [in] pInputBase64 - reference to input Base64-encoded string.
-	/// \param [out] pOutputData - reference to output array for decoded data.
-	void ParseHelper_Decode_Base64(const std::string& pInputBase64, std::vector<uint8_t>& pOutputData) const;
-
-	/// Parse <AMF> node of the file.
-	void ParseNode_Root();
-
-	/// Parse <constellation> node of the file.
-	void ParseNode_Constellation();
-
-	/// Parse <instance> node of the file.
-	void ParseNode_Instance();
-
-	/// Parse <material> node of the file.
-	void ParseNode_Material();
-
-	/// Parse <metadata> node.
-	void ParseNode_Metadata();
-
-	/// Parse <object> node of the file.
-	void ParseNode_Object();
-
-	/// Parse <texture> node of the file.
-	void ParseNode_Texture();
-
-	/// Parse <coordinates> node of the file.
-	void ParseNode_Coordinates();
-
-	/// Parse <edge> node of the file.
-	void ParseNode_Edge();
-
-	/// Parse <mesh> node of the file.
-	void ParseNode_Mesh();
-
-	/// Parse <triangle> node of the file.
-	void ParseNode_Triangle();
-
-	/// Parse <vertex> node of the file.
-	void ParseNode_Vertex();
-
-	/// Parse <vertices> node of the file.
-	void ParseNode_Vertices();
-
-	/// Parse <volume> node of the file.
-	void ParseNode_Volume();
-
-	/// Parse <color> node of the file.
-	void ParseNode_Color();
-
-	/// Parse <texmap> of <map> node of the file.
-	/// \param [in] pUseOldName - if true then use old name of node(and children) - <map>, instead of new name - <texmap>.
-	void ParseNode_TexMap(const bool pUseOldName = false);
-
-public:
-	/// Default constructor.
-	AMFImporter() AI_NO_EXCEPT
-    : mNodeElement_Cur(nullptr)
-    , mReader(nullptr) {
-        // empty
-    }
-
-	/// Default destructor.
-	~AMFImporter();
-
-	/// Parse AMF file and fill scene graph. The function has no return value. Result can be found by analyzing the generated graph.
-	/// Also exception can be thrown if trouble will found.
-	/// \param [in] pFile - name of file to be parsed.
-	/// \param [in] pIOHandler - pointer to IO helper object.
-	void ParseFile(const std::string& pFile, IOSystem* pIOHandler);
-
-	bool CanRead(const std::string& pFile, IOSystem* pIOHandler, bool pCheckSig) const;
-	void GetExtensionList(std::set<std::string>& pExtensionList);
-	void InternReadFile(const std::string& pFile, aiScene* pScene, IOSystem* pIOHandler);
-	const aiImporterDesc* GetInfo ()const;
-
-    AMFImporter(const AMFImporter& pScene) = delete;
-    AMFImporter& operator=(const AMFImporter& pScene) = delete;
+    /// Parse AMF file and fill scene graph. The function has no return value. Result can be found by analyzing the generated graph.
+    /// Also exception can be thrown if trouble will found.
+    /// \param [in] pFile - name of file to be parsed.
+    /// \param [in] pIOHandler - pointer to IO helper object.
+    void ParseFile(const std::string &pFile, IOSystem *pIOHandler);
+    void ParseHelper_Node_Enter(AMFNodeElementBase *child);
+    void ParseHelper_Node_Exit();
+    bool CanRead(const std::string &pFile, IOSystem *pIOHandler, bool pCheckSig) const override;
+    void InternReadFile(const std::string &pFile, aiScene *pScene, IOSystem *pIOHandler) override;
+    const aiImporterDesc *GetInfo() const override;
+    bool Find_NodeElement(const std::string &pID, const AMFNodeElementBase::EType pType, AMFNodeElementBase **pNodeElement) const;
+    bool Find_ConvertedNode(const std::string &pID, NodeArray &nodeArray, aiNode **pNode) const;
+    bool Find_ConvertedMaterial(const std::string &pID, const SPP_Material **pConvertedMaterial) const;
+    AI_WONT_RETURN void Throw_CloseNotFound(const std::string &nodeName) AI_WONT_RETURN_SUFFIX;
+    AI_WONT_RETURN void Throw_IncorrectAttr(const std::string &nodeName, const std::string &pAttrName) AI_WONT_RETURN_SUFFIX;
+    AI_WONT_RETURN void Throw_IncorrectAttrValue(const std::string &nodeName, const std::string &pAttrName) AI_WONT_RETURN_SUFFIX;
+    AI_WONT_RETURN void Throw_MoreThanOnceDefined(const std::string &nodeName, const std::string &pNodeType, const std::string &pDescription) AI_WONT_RETURN_SUFFIX;
+    AI_WONT_RETURN void Throw_ID_NotFound(const std::string &pID) const AI_WONT_RETURN_SUFFIX;
+    void XML_CheckNode_MustHaveChildren(pugi::xml_node &node);
+    bool XML_SearchNode(const std::string &nodeName);
+    AMFImporter(const AMFImporter &pScene) = delete;
+    AMFImporter &operator=(const AMFImporter &pScene) = delete;
 
 private:
-    static const aiImporterDesc Description;
+    /// Clear all temporary data.
+    void Clear();
 
-    CAMFImporter_NodeElement* mNodeElement_Cur;///< Current element.
-    std::list<CAMFImporter_NodeElement*> mNodeElement_List;///< All elements of scene graph.
-    irr::io::IrrXMLReader* mReader;///< Pointer to XML-reader object
+    /// Get data stored in <vertices> and place it to arrays.
+    /// \param [in] pNodeElement - reference to node element which kept <object> data.
+    /// \param [in] pVertexCoordinateArray - reference to vertices coordinates kept in <vertices>.
+    /// \param [in] pVertexColorArray - reference to vertices colors for all <vertex's. If color for vertex is not set then corresponding member of array
+    /// contain nullptr.
+    void PostprocessHelper_CreateMeshDataArray(const AMFMesh &pNodeElement, std::vector<aiVector3D> &pVertexCoordinateArray,
+            std::vector<AMFColor *> &pVertexColorArray) const;
+
+    /// Return converted texture ID which related to specified source textures ID's. If converted texture does not exist then it will be created and ID on new
+    /// converted texture will be returned. Conversion: set of textures from \ref CAMFImporter_NodeElement_Texture to one \ref SPP_Texture and place it
+    /// to converted textures list.
+    /// Any of source ID's can be absent(empty string) or even one ID only specified. But at least one ID must be specified.
+    /// \param [in] pID_R - ID of source "red" texture.
+    /// \param [in] pID_G - ID of source "green" texture.
+    /// \param [in] pID_B - ID of source "blue" texture.
+    /// \param [in] pID_A - ID of source "alpha" texture.
+    /// \return index of the texture in array of the converted textures.
+    size_t PostprocessHelper_GetTextureID_Or_Create(const std::string &pID_R, const std::string &pID_G, const std::string &pID_B, const std::string &pID_A);
+
+    /// Separate input list by texture IDs. This step is needed because aiMesh can contain mesh which is use only one texture (or set: diffuse, bump etc).
+    /// \param [in] pInputList - input list with faces. Some of them can contain color or texture mapping, or both of them, or nothing. Will be cleared after
+    /// processing.
+    /// \param [out] pOutputList_Separated - output list of the faces lists. Separated faces list by used texture IDs. Will be cleared before processing.
+    void PostprocessHelper_SplitFacesByTextureID(std::list<SComplexFace> &pInputList, std::list<std::list<SComplexFace>> &pOutputList_Separated);
+
+    /// Check if child elements of node element is metadata and add it to scene node.
+    /// \param [in] pMetadataList - reference to list with collected metadata.
+    /// \param [out] pSceneNode - scene node in which metadata will be added.
+    void Postprocess_AddMetadata(const AMFMetaDataArray &pMetadataList, aiNode &pSceneNode) const;
+
+    /// To create aiMesh and aiNode for it from <object>.
+    /// \param [in] pNodeElement - reference to node element which kept <object> data.
+    /// \param [out] meshList    - reference to a list with all aiMesh of the scene.
+    /// \param [out] pSceneNode  - pointer to place where new aiNode will be created.
+    void Postprocess_BuildNodeAndObject(const AMFObject &pNodeElement, MeshArray &meshList, aiNode **pSceneNode);
+
+    /// Create mesh for every <volume> in <mesh>.
+    /// \param [in] pNodeElement - reference to node element which kept <mesh> data.
+    /// \param [in] pVertexCoordinateArray - reference to vertices coordinates for all <volume>'s.
+    /// \param [in] pVertexColorArray - reference to vertices colors for all <volume>'s. If color for vertex is not set then corresponding member of array
+    /// contain nullptr.
+    /// \param [in] pObjectColor - pointer to colors for <object>. If color is not set then argument contain nullptr.
+    /// \param [in] pMaterialList - reference to a list with defined materials.
+    /// \param [out] pMeshList - reference to a list with all aiMesh of the scene.
+    /// \param [out] pSceneNode - reference to aiNode which will own new aiMesh's.
+    void Postprocess_BuildMeshSet(const AMFMesh &pNodeElement, const std::vector<aiVector3D> &pVertexCoordinateArray,
+            const std::vector<AMFColor *> &pVertexColorArray, const AMFColor *pObjectColor,
+            MeshArray &pMeshList, aiNode &pSceneNode);
+
+    /// Convert material from \ref CAMFImporter_NodeElement_Material to \ref SPP_Material.
+    /// \param [in] pMaterial - source CAMFImporter_NodeElement_Material.
+    void Postprocess_BuildMaterial(const AMFMaterial &pMaterial);
+
+    /// Create and add to aiNode's list new part of scene graph defined by <constellation>.
+    /// \param [in] pConstellation - reference to <constellation> node.
+    /// \param [out] nodeArray     - reference to aiNode's list.
+    void Postprocess_BuildConstellation(AMFConstellation &pConstellation, NodeArray &nodeArray) const;
+
+    /// Build Assimp scene graph in aiScene from collected data.
+    /// \param [out] pScene - pointer to aiScene where tree will be built.
+    void Postprocess_BuildScene(aiScene *pScene);
+
+    /// Decode Base64-encoded data.
+    /// \param [in] pInputBase64 - reference to input Base64-encoded string.
+    /// \param [out] pOutputData - reference to output array for decoded data.
+    void ParseHelper_Decode_Base64(const std::string &pInputBase64, std::vector<uint8_t> &pOutputData) const;
+
+    /// Parse <AMF> node of the file.
+    void ParseNode_Root();
+
+    /// Parse <constellation> node of the file.
+    void ParseNode_Constellation(XmlNode &node);
+
+    /// Parse <instance> node of the file.
+    void ParseNode_Instance(XmlNode &node);
+
+    /// Parse <material> node of the file.
+    void ParseNode_Material(XmlNode &node);
+
+    /// Parse <metadata> node.
+    void ParseNode_Metadata(XmlNode &node);
+
+    /// Parse <object> node of the file.
+    void ParseNode_Object(XmlNode &node);
+
+    /// Parse <texture> node of the file.
+    void ParseNode_Texture(XmlNode &node);
+
+    /// Parse <coordinates> node of the file.
+    void ParseNode_Coordinates(XmlNode &node);
+
+    /// Parse <edge> node of the file.
+    void ParseNode_Edge(XmlNode &node);
+
+    /// Parse <mesh> node of the file.
+    void ParseNode_Mesh(XmlNode &node);
+
+    /// Parse <triangle> node of the file.
+    void ParseNode_Triangle(XmlNode &node);
+
+    /// Parse <vertex> node of the file.
+    void ParseNode_Vertex(XmlNode &node);
+
+    /// Parse <vertices> node of the file.
+    void ParseNode_Vertices(XmlNode &node);
+
+    /// Parse <volume> node of the file.
+    void ParseNode_Volume(XmlNode &node);
+
+    /// Parse <color> node of the file.
+    void ParseNode_Color(XmlNode &node);
+
+    /// Parse <texmap> of <map> node of the file.
+    /// \param [in] pUseOldName - if true then use old name of node(and children) - <map>, instead of new name - <texmap>.
+    void ParseNode_TexMap(XmlNode &node, const bool pUseOldName = false);
+
+
+
+private:
+    AMFNodeElementBase *mNodeElement_Cur; ///< Current element.
+    std::list<AMFNodeElementBase *> mNodeElement_List; ///< All elements of scene graph.
+    XmlParser *mXmlParser;
     std::string mUnit;
-    std::list<SPP_Material> mMaterial_Converted;///< List of converted materials for postprocessing step.
-    std::list<SPP_Texture> mTexture_Converted;///< List of converted textures for postprocessing step.
-
+    std::string mVersion;
+    std::list<SPP_Material> mMaterial_Converted; ///< List of converted materials for postprocessing step.
+    std::list<SPP_Texture> mTexture_Converted; ///< List of converted textures for postprocessing step.
 };
 
-}// namespace Assimp
+} // namespace Assimp
 
 #endif // INCLUDED_AI_AMF_IMPORTER_H

code/AssetLib/AMF/AMFImporter_Geometry.cpp

@@ -3,9 +3,7 @@
 Open Asset Import Library (assimp)
 ---------------------------------------------------------------------------
 
-Copyright (c) 2006-2020, assimp team
-
-
+Copyright (c) 2006-2024, assimp team
 
 All rights reserved.
 
@@ -41,58 +39,50 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ---------------------------------------------------------------------------
 */
 
-/// \file AMFImporter_Geometry.cpp
-/// \brief Parsing data from geometry nodes.
-/// \date 2016
-/// \author smal.root@gmail.com
-
 #ifndef ASSIMP_BUILD_NO_AMF_IMPORTER
 
 #include "AMFImporter.hpp"
-#include "AMFImporter_Macro.hpp"
+#include <assimp/ParsingUtils.h>
 
-namespace Assimp
-{
+namespace Assimp {
 
 // <mesh>
 // </mesh>
 // A 3D mesh hull.
 // Multi elements - Yes.
 // Parent element - <object>.
-void AMFImporter::ParseNode_Mesh()
-{
-CAMFImporter_NodeElement* ne;
+void AMFImporter::ParseNode_Mesh(XmlNode &node) {
+    AMFNodeElementBase *ne = nullptr;
 
-	// create new mesh object.
-	ne = new CAMFImporter_NodeElement_Mesh(mNodeElement_Cur);
-	// Check for child nodes
-	if(!mReader->isEmptyElement())
-	{
-		bool vert_read = false;
+    // Check for child nodes
+    if (0 != ASSIMP_stricmp(node.name(), "mesh")) {
+        return;
+    }
+    // create new mesh object.
+    ne = new AMFMesh(mNodeElement_Cur);
+    bool found_verts = false, found_volumes = false;
+    if (!node.empty()) {
+        ParseHelper_Node_Enter(ne);
+        pugi::xml_node vertNode = node.child("vertices");
+        if (!vertNode.empty()) {
+            ParseNode_Vertices(vertNode);
+            found_verts = true;
+        }
 
-		ParseHelper_Node_Enter(ne);
-		MACRO_NODECHECK_LOOPBEGIN("mesh");
-			if(XML_CheckNode_NameEqual("vertices"))
-			{
-				// Check if data already defined.
-				if(vert_read) Throw_MoreThanOnceDefined("vertices", "Only one vertices set can be defined for <mesh>.");
-				// read data and set flag about it
-				ParseNode_Vertices();
-				vert_read = true;
+        pugi::xml_node volumeNode = node.child("volume");
+        if (!volumeNode.empty()) {
+            ParseNode_Volume(volumeNode);
+            found_volumes = true;
+        }
+        ParseHelper_Node_Exit();
+    }
 
-				continue;
-			}
+    if (!found_verts && !found_volumes) {
+        mNodeElement_Cur->Child.push_back(ne);
+    } // if(!mReader->isEmptyElement()) else
 
-			if(XML_CheckNode_NameEqual("volume")) { ParseNode_Volume(); continue; }
-		MACRO_NODECHECK_LOOPEND("mesh");
-		ParseHelper_Node_Exit();
-	}// if(!mReader->isEmptyElement())
-	else
-	{
-		mNodeElement_Cur->Child.push_back(ne);// Add element to child list of current element
-	}// if(!mReader->isEmptyElement()) else
-
-	mNodeElement_List.push_back(ne);// and to node element list because its a new object in graph.
+    // and to node element list because its a new object in graph.
+    mNodeElement_List.push_back(ne);
 }
 
 // <vertices>
@@ -100,27 +90,25 @@ CAMFImporter_NodeElement* ne;
 // The list of vertices to be used in defining triangles.
 // Multi elements - No.
 // Parent element - <mesh>.
-void AMFImporter::ParseNode_Vertices()
-{
-CAMFImporter_NodeElement* ne;
+void AMFImporter::ParseNode_Vertices(XmlNode &node) {
+    AMFNodeElementBase *ne = nullptr;
 
-	// create new mesh object.
-	ne = new CAMFImporter_NodeElement_Vertices(mNodeElement_Cur);
-	// Check for child nodes
-	if(!mReader->isEmptyElement())
-	{
-		ParseHelper_Node_Enter(ne);
-		MACRO_NODECHECK_LOOPBEGIN("vertices");
-			if(XML_CheckNode_NameEqual("vertex")) { ParseNode_Vertex(); continue; }
-		MACRO_NODECHECK_LOOPEND("vertices");
-		ParseHelper_Node_Exit();
-	}// if(!mReader->isEmptyElement())
-	else
-	{
-		mNodeElement_Cur->Child.push_back(ne);// Add element to child list of current element
-	}// if(!mReader->isEmptyElement()) else
-
-	mNodeElement_List.push_back(ne);// and to node element list because its a new object in graph.
+    // create new mesh object.
+    ne = new AMFVertices(mNodeElement_Cur);
+    // Check for child nodes
+    if (node.empty()) {
+        mNodeElement_Cur->Child.push_back(ne); // Add element to child list of current element
+        return;
+    }
+    ParseHelper_Node_Enter(ne);
+    for (XmlNode &currentNode : node.children()) {
+        const std::string &currentName = currentNode.name();
+        if (currentName == "vertex") {
+            ParseNode_Vertex(currentNode);
+        }
+    }
+    ParseHelper_Node_Exit();
+    mNodeElement_List.push_back(ne); // and to node element list because its a new object in graph.
 }
 
 // <vertex>
@@ -128,52 +116,35 @@ CAMFImporter_NodeElement* ne;
 // A vertex to be referenced in triangles.
 // Multi elements - Yes.
 // Parent element - <vertices>.
-void AMFImporter::ParseNode_Vertex()
-{
-CAMFImporter_NodeElement* ne;
+void AMFImporter::ParseNode_Vertex(XmlNode &node) {
+    AMFNodeElementBase *ne = nullptr;
 
-	// create new mesh object.
-	ne = new CAMFImporter_NodeElement_Vertex(mNodeElement_Cur);
-	// Check for child nodes
-	if(!mReader->isEmptyElement())
-	{
-		bool col_read = false;
-		bool coord_read = false;
+    // create new mesh object.
+    ne = new AMFVertex(mNodeElement_Cur);
 
-		ParseHelper_Node_Enter(ne);
-		MACRO_NODECHECK_LOOPBEGIN("vertex");
-			if(XML_CheckNode_NameEqual("color"))
-			{
-				// Check if data already defined.
-				if(col_read) Throw_MoreThanOnceDefined("color", "Only one color can be defined for <vertex>.");
-				// read data and set flag about it
-				ParseNode_Color();
-				col_read = true;
+    // Check for child nodes
+    pugi::xml_node colorNode = node.child("color");
+    bool col_read = false;
+    bool coord_read = false;
+    if (!node.empty()) {
+        ParseHelper_Node_Enter(ne);
+        if (!colorNode.empty()) {
+            ParseNode_Color(colorNode);
+            col_read = true;
+        }
+        pugi::xml_node coordNode = node.child("coordinates");
+        if (!coordNode.empty()) {
+            ParseNode_Coordinates(coordNode);
+            coord_read = true;
+        }
+        ParseHelper_Node_Exit();
+    }
 
-				continue;
-			}
+    if (!coord_read && !col_read) {
+        mNodeElement_Cur->Child.push_back(ne); // Add element to child list of current element
+    }
 
-			if(XML_CheckNode_NameEqual("coordinates"))
-			{
-				// Check if data already defined.
-				if(coord_read) Throw_MoreThanOnceDefined("coordinates", "Only one coordinates set can be defined for <vertex>.");
-				// read data and set flag about it
-				ParseNode_Coordinates();
-				coord_read = true;
-
-				continue;
-			}
-
-			if(XML_CheckNode_NameEqual("metadata")) { ParseNode_Metadata(); continue; }
-		MACRO_NODECHECK_LOOPEND("vertex");
-		ParseHelper_Node_Exit();
-	}// if(!mReader->isEmptyElement())
-	else
-	{
-		mNodeElement_Cur->Child.push_back(ne);// Add element to child list of current element
-	}// if(!mReader->isEmptyElement()) else
-
-	mNodeElement_List.push_back(ne);// and to node element list because its a new object in graph.
+    mNodeElement_List.push_back(ne); // and to node element list because its a new object in graph.
 }
 
 // <coordinates>
@@ -186,94 +157,76 @@ CAMFImporter_NodeElement* ne;
 //   <x>, <y>, <z>
 //   Multi elements - No.
 //   X, Y, or Z coordinate, respectively, of a vertex position in space.
-void AMFImporter::ParseNode_Coordinates()
-{
-CAMFImporter_NodeElement* ne;
+void AMFImporter::ParseNode_Coordinates(XmlNode &node) {
+    AMFNodeElementBase *ne = nullptr;
+    if (!node.empty()) {
+        ne = new AMFCoordinates(mNodeElement_Cur);
+        ParseHelper_Node_Enter(ne);
+        for (XmlNode &currentNode : node.children()) {
+            // create new color object.
+            AMFCoordinates &als = *((AMFCoordinates *)ne); // alias for convenience
+            const std::string &currentName = ai_tolower(currentNode.name());
+            if (currentName == "x") {
+                XmlParser::getValueAsReal(currentNode, als.Coordinate.x);
+            } else if (currentName == "y") {
+                XmlParser::getValueAsReal(currentNode, als.Coordinate.y);
+            } else if (currentName == "z") {
+                XmlParser::getValueAsReal(currentNode, als.Coordinate.z);
+            }
+        }
+        ParseHelper_Node_Exit();
 
-	// create new color object.
-	ne = new CAMFImporter_NodeElement_Coordinates(mNodeElement_Cur);
+    } else {
+        mNodeElement_Cur->Child.push_back(new AMFCoordinates(mNodeElement_Cur));
+    }
 
-	CAMFImporter_NodeElement_Coordinates& als = *((CAMFImporter_NodeElement_Coordinates*)ne);// alias for convenience
-
-	// Check for child nodes
-	if(!mReader->isEmptyElement())
-	{
-		bool read_flag[3] = { false, false, false };
-
-		ParseHelper_Node_Enter(ne);
-		MACRO_NODECHECK_LOOPBEGIN("coordinates");
-			MACRO_NODECHECK_READCOMP_F("x", read_flag[0], als.Coordinate.x);
-			MACRO_NODECHECK_READCOMP_F("y", read_flag[1], als.Coordinate.y);
-			MACRO_NODECHECK_READCOMP_F("z", read_flag[2], als.Coordinate.z);
-		MACRO_NODECHECK_LOOPEND("coordinates");
-		ParseHelper_Node_Exit();
-		// check that all components was defined
-		if((read_flag[0] && read_flag[1] && read_flag[2]) == 0) throw DeadlyImportError("Not all coordinate's components are defined.");
-
-	}// if(!mReader->isEmptyElement())
-	else
-	{
-		mNodeElement_Cur->Child.push_back(ne);// Add element to child list of current element
-	}// if(!mReader->isEmptyElement()) else
-
-	mNodeElement_List.push_back(ne);// and to node element list because its a new object in graph.
+    mNodeElement_List.push_back(ne); // and to node element list because its a new object in graph.
 }
 
 // <volume
 // materialid="" - Which material to use.
-// type=""       - What this volume describes can be “region” or “support”. If none specified, “object” is assumed. If support, then the geometric
+// type=""       - What this volume describes can be "region" or "support". If none specified, "object" is assumed. If support, then the geometric
 //                 requirements 1-8 listed in section 5 do not need to be maintained.
 // >
 // </volume>
 // Defines a volume from the established vertex list.
 // Multi elements - Yes.
 // Parent element - <mesh>.
-void AMFImporter::ParseNode_Volume()
-{
-std::string materialid;
-std::string type;
-CAMFImporter_NodeElement* ne;
+void AMFImporter::ParseNode_Volume(XmlNode &node) {
+    std::string materialid;
+    std::string type;
+    AMFNodeElementBase *ne = new AMFVolume(mNodeElement_Cur);
 
-	// Read attributes for node <color>.
-	MACRO_ATTRREAD_LOOPBEG;
-		MACRO_ATTRREAD_CHECK_RET("materialid", materialid, mReader->getAttributeValue);
-		MACRO_ATTRREAD_CHECK_RET("type", type, mReader->getAttributeValue);
-	MACRO_ATTRREAD_LOOPEND;
+    // Read attributes for node <color>.
+    // and assign read data
 
-	// create new object.
-	ne = new CAMFImporter_NodeElement_Volume(mNodeElement_Cur);
-	// and assign read data
-	((CAMFImporter_NodeElement_Volume*)ne)->MaterialID = materialid;
-	((CAMFImporter_NodeElement_Volume*)ne)->Type = type;
-	// Check for child nodes
-	if(!mReader->isEmptyElement())
-	{
-		bool col_read = false;
+    ((AMFVolume *)ne)->MaterialID = node.attribute("materialid").as_string();
 
-		ParseHelper_Node_Enter(ne);
-		MACRO_NODECHECK_LOOPBEGIN("volume");
-			if(XML_CheckNode_NameEqual("color"))
-			{
-				// Check if data already defined.
-				if(col_read) Throw_MoreThanOnceDefined("color", "Only one color can be defined for <volume>.");
-				// read data and set flag about it
-				ParseNode_Color();
-				col_read = true;
+    ((AMFVolume *)ne)->Type = type;
+    // Check for child nodes
+    bool col_read = false;
+    if (!node.empty()) {
+        ParseHelper_Node_Enter(ne);
+        for (auto &currentNode : node.children()) {
+            const std::string currentName = currentNode.name();
+            if (currentName == "color") {
+                if (col_read) Throw_MoreThanOnceDefined(currentName, "color", "Only one color can be defined for <volume>.");
+                ParseNode_Color(currentNode);
+                col_read = true;
+            } else if (currentName == "triangle") {
+                ParseNode_Triangle(currentNode);
+            } else if (currentName == "metadata") {
+                ParseNode_Metadata(currentNode);
+            } else if (currentName == "volume") {
+                ParseNode_Metadata(currentNode);
+            }
+        }
+        ParseHelper_Node_Exit();
+    } else {
+        mNodeElement_Cur->Child.push_back(ne); // Add element to child list of current element
+    }
 
-				continue;
-			}
-
-			if(XML_CheckNode_NameEqual("triangle")) { ParseNode_Triangle(); continue; }
-			if(XML_CheckNode_NameEqual("metadata")) { ParseNode_Metadata(); continue; }
-		MACRO_NODECHECK_LOOPEND("volume");
-		ParseHelper_Node_Exit();
-	}// if(!mReader->isEmptyElement())
-	else
-	{
-		mNodeElement_Cur->Child.push_back(ne);// Add element to child list of current element
-	}// if(!mReader->isEmptyElement()) else
-
-	mNodeElement_List.push_back(ne);// and to node element list because its a new object in graph.
+    mNodeElement_List.push_back(ne); // and to node element list because its a new object in graph.
 }
 
 // <triangle>
@@ -286,72 +239,46 @@ CAMFImporter_NodeElement* ne;
 //   <v1>, <v2>, <v3>
 //   Multi elements - No.
 //   Index of the desired vertices in a triangle or edge.
-void AMFImporter::ParseNode_Triangle()
-{
-CAMFImporter_NodeElement* ne;
+void AMFImporter::ParseNode_Triangle(XmlNode &node) {
+    AMFNodeElementBase *ne = new AMFTriangle(mNodeElement_Cur);
 
-	// create new color object.
-	ne = new CAMFImporter_NodeElement_Triangle(mNodeElement_Cur);
+    // create new triangle object.
 
-	CAMFImporter_NodeElement_Triangle& als = *((CAMFImporter_NodeElement_Triangle*)ne);// alias for convenience
+    AMFTriangle &als = *((AMFTriangle *)ne); // alias for convenience
 
-	// Check for child nodes
-	if(!mReader->isEmptyElement())
-	{
-		bool col_read = false, tex_read = false;
-		bool read_flag[3] = { false, false, false };
+    bool col_read = false;
+    if (!node.empty()) {
+        ParseHelper_Node_Enter(ne);
+        std::string v;
+        for (auto &currentNode : node.children()) {
+            const std::string currentName = currentNode.name();
+            if (currentName == "color") {
+                if (col_read) Throw_MoreThanOnceDefined(currentName, "color", "Only one color can be defined for <triangle>.");
+                ParseNode_Color(currentNode);
+                col_read = true;
+            } else if (currentName == "texmap") {
+                ParseNode_TexMap(currentNode);
+            } else if (currentName == "map") {
+                ParseNode_TexMap(currentNode, true);
+            } else if (currentName == "v1") {
+                XmlParser::getValueAsString(currentNode, v);
+                als.V[0] = std::atoi(v.c_str());
+            } else if (currentName == "v2") {
+                XmlParser::getValueAsString(currentNode, v);
+                als.V[1] = std::atoi(v.c_str());
+            } else if (currentName == "v3") {
+                XmlParser::getValueAsString(currentNode, v);
+                als.V[2] = std::atoi(v.c_str());
+            }
+        }
+        ParseHelper_Node_Exit();
+    } else {
+        mNodeElement_Cur->Child.push_back(ne); // Add element to child list of current element
+    }
 
-		ParseHelper_Node_Enter(ne);
-		MACRO_NODECHECK_LOOPBEGIN("triangle");
-			if(XML_CheckNode_NameEqual("color"))
-			{
-				// Check if data already defined.
-				if(col_read) Throw_MoreThanOnceDefined("color", "Only one color can be defined for <triangle>.");
-				// read data and set flag about it
-				ParseNode_Color();
-				col_read = true;
-
-				continue;
-			}
-
-			if(XML_CheckNode_NameEqual("texmap"))// new name of node: "texmap".
-			{
-				// Check if data already defined.
-				if(tex_read) Throw_MoreThanOnceDefined("texmap", "Only one texture coordinate can be defined for <triangle>.");
-				// read data and set flag about it
-				ParseNode_TexMap();
-				tex_read = true;
-
-				continue;
-			}
-			else if(XML_CheckNode_NameEqual("map"))// old name of node: "map".
-			{
-				// Check if data already defined.
-				if(tex_read) Throw_MoreThanOnceDefined("map", "Only one texture coordinate can be defined for <triangle>.");
-				// read data and set flag about it
-				ParseNode_TexMap(true);
-				tex_read = true;
-
-				continue;
-			}
-
-			MACRO_NODECHECK_READCOMP_U32("v1", read_flag[0], als.V[0]);
-			MACRO_NODECHECK_READCOMP_U32("v2", read_flag[1], als.V[1]);
-			MACRO_NODECHECK_READCOMP_U32("v3", read_flag[2], als.V[2]);
-		MACRO_NODECHECK_LOOPEND("triangle");
-		ParseHelper_Node_Exit();
-		// check that all components was defined
-		if((read_flag[0] && read_flag[1] && read_flag[2]) == 0) throw DeadlyImportError("Not all vertices of the triangle are defined.");
-
-	}// if(!mReader->isEmptyElement())
-	else
-	{
-		mNodeElement_Cur->Child.push_back(ne);// Add element to child list of current element
-	}// if(!mReader->isEmptyElement()) else
-
-	mNodeElement_List.push_back(ne);// and to node element list because its a new object in graph.
+    mNodeElement_List.push_back(ne); // and to node element list because its a new object in graph.
 }
 
-}// namespace Assimp
+} // namespace Assimp
 
 #endif // !ASSIMP_BUILD_NO_AMF_IMPORTER

code/AssetLib/AMF/AMFImporter_Macro.hpp

@@ -1,166 +0,0 @@
-/*
----------------------------------------------------------------------------
-Open Asset Import Library (assimp)
----------------------------------------------------------------------------
-
-Copyright (c) 2006-2020, assimp team
-
-
-
-All rights reserved.
-
-Redistribution and use of this software in source and binary forms,
-with or without modification, are permitted provided that the following
-conditions are met:
-
-* Redistributions of source code must retain the above
-copyright notice, this list of conditions and the
-following disclaimer.
-
-* Redistributions in binary form must reproduce the above
-copyright notice, this list of conditions and the
-following disclaimer in the documentation and/or other
-materials provided with the distribution.
-
-* Neither the name of the assimp team, nor the names of its
-contributors may be used to endorse or promote products
-derived from this software without specific prior
-written permission of the assimp team.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
----------------------------------------------------------------------------
-*/
-
-/// \file AMFImporter_Macro.hpp
-/// \brief Useful macrodefines.
-/// \date 2016
-/// \author smal.root@gmail.com
-
-#pragma once
-#ifndef AMFIMPORTER_MACRO_HPP_INCLUDED
-#define AMFIMPORTER_MACRO_HPP_INCLUDED
-
-/// \def MACRO_ATTRREAD_LOOPBEG
-/// Begin of loop that read attributes values.
-#define MACRO_ATTRREAD_LOOPBEG \
-	for(int idx = 0, idx_end = mReader->getAttributeCount(); idx < idx_end; idx++) \
-	{ \
-		std::string an(mReader->getAttributeName(idx));
-
-/// \def MACRO_ATTRREAD_LOOPEND
-/// End of loop that read attributes values.
-#define MACRO_ATTRREAD_LOOPEND \
-		Throw_IncorrectAttr(an); \
-	}
-
-/// \def MACRO_ATTRREAD_LOOPEND_WSKIP
-/// End of loop that read attributes values. Difference from \ref MACRO_ATTRREAD_LOOPEND in that: current macro skip unknown attributes, but
-/// \ref MACRO_ATTRREAD_LOOPEND throw an exception.
-#define MACRO_ATTRREAD_LOOPEND_WSKIP \
-		continue; \
-	}
-
-/// \def MACRO_ATTRREAD_CHECK_REF
-/// Check current attribute name and if it equal to requested then read value. Result write to output variable by reference. If result was read then
-/// "continue" will called.
-/// \param [in] pAttrName - attribute name.
-/// \param [out] pVarName - output variable name.
-/// \param [in] pFunction - function which read attribute value and write it to pVarName.
-#define MACRO_ATTRREAD_CHECK_REF(pAttrName, pVarName, pFunction) \
-	if(an == pAttrName) \
-	{ \
-		pFunction(idx, pVarName); \
-		continue; \
-	}
-
-/// \def MACRO_ATTRREAD_CHECK_RET
-/// Check current attribute name and if it equal to requested then read value. Result write to output variable using return value of \ref pFunction.
-/// If result was read then  "continue" will called.
-/// \param [in] pAttrName - attribute name.
-/// \param [out] pVarName - output variable name.
-/// \param [in] pFunction - function which read attribute value and write it to pVarName.
-#define MACRO_ATTRREAD_CHECK_RET(pAttrName, pVarName, pFunction) \
-	if(an == pAttrName) \
-	{ \
-		pVarName = pFunction(idx); \
-		continue; \
-	}
-
-/// \def MACRO_NODECHECK_LOOPBEGIN(pNodeName)
-/// Begin of loop of parsing child nodes. Do not add ';' at end.
-/// \param [in] pNodeName - current node name.
-#define MACRO_NODECHECK_LOOPBEGIN(pNodeName) \
-	do { \
-	bool close_found = false; \
-	 \
-	while(mReader->read()) \
-	{ \
-		if(mReader->getNodeType() == irr::io::EXN_ELEMENT) \
-		{
-
-/// \def MACRO_NODECHECK_LOOPEND(pNodeName)
-/// End of loop of parsing child nodes.
-/// \param [in] pNodeName - current node name.
-#define MACRO_NODECHECK_LOOPEND(pNodeName) \
-			XML_CheckNode_SkipUnsupported(pNodeName); \
-		}/* if(mReader->getNodeType() == irr::io::EXN_ELEMENT) */ \
-		else if(mReader->getNodeType() == irr::io::EXN_ELEMENT_END) \
-		{ \
-			if(XML_CheckNode_NameEqual(pNodeName)) \
-			{ \
-				close_found = true; \
-	 \
-				break; \
-			} \
-		}/* else if(mReader->getNodeType() == irr::io::EXN_ELEMENT_END) */ \
-	}/* while(mReader->read()) */ \
-	 \
-	if(!close_found) Throw_CloseNotFound(pNodeName); \
-	 \
-	} while(false)
-
-/// \def MACRO_NODECHECK_READCOMP_F
-/// Check current node name and if it equal to requested then read value. Result write to output variable of type "float".
-/// If result was read then  "continue" will called. Also check if node data already read then raise exception.
-/// \param [in] pNodeName - node name.
-/// \param [in, out] pReadFlag - read flag.
-/// \param [out] pVarName - output variable name.
-#define MACRO_NODECHECK_READCOMP_F(pNodeName, pReadFlag, pVarName) \
-	if(XML_CheckNode_NameEqual(pNodeName)) \
-	{ \
-		/* Check if field already read before. */ \
-		if(pReadFlag) Throw_MoreThanOnceDefined(pNodeName, "Only one component can be defined."); \
-		/* Read color component and assign it to object. */ \
-		pVarName = XML_ReadNode_GetVal_AsFloat(); \
-		pReadFlag = true; \
-		continue; \
-	}
-
-/// \def MACRO_NODECHECK_READCOMP_U32
-/// Check current node name and if it equal to requested then read value. Result write to output variable of type "uint32_t".
-/// If result was read then  "continue" will called. Also check if node data already read then raise exception.
-/// \param [in] pNodeName - node name.
-/// \param [in, out] pReadFlag - read flag.
-/// \param [out] pVarName - output variable name.
-#define MACRO_NODECHECK_READCOMP_U32(pNodeName, pReadFlag, pVarName) \
-	if(XML_CheckNode_NameEqual(pNodeName)) \
-	{ \
-		/* Check if field already read before. */ \
-		if(pReadFlag) Throw_MoreThanOnceDefined(pNodeName, "Only one component can be defined."); \
-		/* Read color component and assign it to object. */ \
-		pVarName = XML_ReadNode_GetVal_AsU32(); \
-		pReadFlag = true; \
-		continue; \
-	}
-
-#endif // AMFIMPORTER_MACRO_HPP_INCLUDED

code/AssetLib/AMF/AMFImporter_Material.cpp

@@ -3,9 +3,7 @@
 Open Asset Import Library (assimp)
 ---------------------------------------------------------------------------
 
-Copyright (c) 2006-2020, assimp team
-
-
+Copyright (c) 2006-2024, assimp team
 
 All rights reserved.
 
@@ -49,10 +47,8 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #ifndef ASSIMP_BUILD_NO_AMF_IMPORTER
 
 #include "AMFImporter.hpp"
-#include "AMFImporter_Macro.hpp"
 
-namespace Assimp
-{
+namespace Assimp {
 
 // <color
 // profile="" - The ICC color space used to interpret the three color channels <r>, <g> and <b>.
@@ -68,51 +64,46 @@ namespace Assimp
 //   Multi elements - No.
 //   Red, Greed, Blue and Alpha (transparency) component of a color in sRGB space, values ranging from 0 to 1. The
 //   values can be specified as constants, or as a formula depending on the coordinates.
-void AMFImporter::ParseNode_Color() {
-    std::string profile;
-    CAMFImporter_NodeElement* ne;
+void AMFImporter::ParseNode_Color(XmlNode &node) {
+    if (node.empty()) {
+        return;
+    }
 
-	// Read attributes for node <color>.
-	MACRO_ATTRREAD_LOOPBEG;
-		MACRO_ATTRREAD_CHECK_RET("profile", profile, mReader->getAttributeValue);
-	MACRO_ATTRREAD_LOOPEND;
+    const std::string &profile = node.attribute("profile").as_string();
+    bool read_flag[4] = { false, false, false, false };
+    AMFNodeElementBase *ne = new AMFColor(mNodeElement_Cur);
+    AMFColor &als = *((AMFColor *)ne); // alias for convenience
+    ParseHelper_Node_Enter(ne);
+    for (pugi::xml_node &child : node.children()) {
+        // create new color object.
+        als.Profile = profile;
 
-	// create new color object.
-	ne = new CAMFImporter_NodeElement_Color(mNodeElement_Cur);
-
-	CAMFImporter_NodeElement_Color& als = *((CAMFImporter_NodeElement_Color*)ne);// alias for convenience
-
-	als.Profile = profile;
-	// Check for child nodes
-	if(!mReader->isEmptyElement())
-	{
-		bool read_flag[4] = { false, false, false, false };
-
-		ParseHelper_Node_Enter(ne);
-		MACRO_NODECHECK_LOOPBEGIN("color");
-			MACRO_NODECHECK_READCOMP_F("r", read_flag[0], als.Color.r);
-			MACRO_NODECHECK_READCOMP_F("g", read_flag[1], als.Color.g);
-			MACRO_NODECHECK_READCOMP_F("b", read_flag[2], als.Color.b);
-			MACRO_NODECHECK_READCOMP_F("a", read_flag[3], als.Color.a);
-		MACRO_NODECHECK_LOOPEND("color");
-		ParseHelper_Node_Exit();
-		// check that all components was defined
-        if (!(read_flag[0] && read_flag[1] && read_flag[2])) {
-            throw DeadlyImportError("Not all color components are defined.");
+        const std::string &name = child.name();
+        if ( name == "r") {
+			read_flag[0] = true;
+            XmlParser::getValueAsFloat(child, als.Color.r);
+        } else if (name == "g") {
+			read_flag[1] = true;
+            XmlParser::getValueAsFloat(child, als.Color.g);
+        } else if (name == "b") {
+			read_flag[2] = true;
+            XmlParser::getValueAsFloat(child, als.Color.b);
+        } else if (name == "a") {
+			read_flag[3] = true;
+            XmlParser::getValueAsFloat(child, als.Color.a);
         }
-
         // check if <a> is absent. Then manually add "a == 1".
         if (!read_flag[3]) {
             als.Color.a = 1;
         }
+    }
+    als.Composed = false;
+    mNodeElement_List.push_back(ne); // and to node element list because its a new object in graph.
+    ParseHelper_Node_Exit();
+    // check that all components was defined
+	if (!(read_flag[0] && read_flag[1] && read_flag[2])) {
+		throw DeadlyImportError("Not all color components are defined.");
 	}
-	else
-	{
-		mNodeElement_Cur->Child.push_back(ne);// Add element to child list of current element
-	}
-
-	als.Composed = false;
-	mNodeElement_List.push_back(ne);// and to node element list because its a new object in graph.
 }
 
 // <material
@@ -122,45 +113,25 @@ void AMFImporter::ParseNode_Color() {
 // An available material.
 // Multi elements - Yes.
 // Parent element - <amf>.
-void AMFImporter::ParseNode_Material() {
-    std::string id;
-    CAMFImporter_NodeElement* ne;
-
-	// Read attributes for node <color>.
-	MACRO_ATTRREAD_LOOPBEG;
-		MACRO_ATTRREAD_CHECK_RET("id", id, mReader->getAttributeValue);
-	MACRO_ATTRREAD_LOOPEND;
-
-	// create new object.
-	ne = new CAMFImporter_NodeElement_Material(mNodeElement_Cur);
-
-    // and assign read data
-	((CAMFImporter_NodeElement_Material*)ne)->ID = id;
+void AMFImporter::ParseNode_Material(XmlNode &node) {
+    // create new object and assign read data
+	std::string id = node.attribute("id").as_string();
+	AMFNodeElementBase *ne = new AMFMaterial(mNodeElement_Cur);
+	((AMFMaterial*)ne)->ID = id;
 
     // Check for child nodes
-	if(!mReader->isEmptyElement())
-	{
-		bool col_read = false;
-
-		ParseHelper_Node_Enter(ne);
-		MACRO_NODECHECK_LOOPBEGIN("material");
-			if(XML_CheckNode_NameEqual("color"))
-			{
-				// Check if data already defined.
-				if(col_read) Throw_MoreThanOnceDefined("color", "Only one color can be defined for <material>.");
-				// read data and set flag about it
-				ParseNode_Color();
-				col_read = true;
-
-				continue;
+	if (!node.empty()) {
+        ParseHelper_Node_Enter(ne);
+        for (pugi::xml_node &child : node.children()) {
+            const std::string name = child.name();
+            if (name == "color") {
+				ParseNode_Color(child);
+            } else if (name == "metadata") {
+				ParseNode_Metadata(child);
 			}
-
-			if(XML_CheckNode_NameEqual("metadata")) { ParseNode_Metadata(); continue; }
-		MACRO_NODECHECK_LOOPEND("material");
-		ParseHelper_Node_Exit();
-	}
-	else
-	{
+		}
+        ParseHelper_Node_Exit();
+	} else {
 		mNodeElement_Cur->Child.push_back(ne);// Add element to child list of current element
 	}
 
@@ -183,51 +154,39 @@ void AMFImporter::ParseNode_Material() {
 // then layer by layer.
 // Multi elements - Yes.
 // Parent element - <amf>.
-void AMFImporter::ParseNode_Texture()
-{
-    std::string id;
-    uint32_t width = 0;
-    uint32_t height = 0;
-    uint32_t depth = 1;
-    std::string type;
-    bool tiled = false;
-    std::string enc64_data;
+void AMFImporter::ParseNode_Texture(XmlNode &node) {
+    const std::string id = node.attribute("id").as_string();
+	const uint32_t width = node.attribute("width").as_uint();
+    const uint32_t height = node.attribute("height").as_uint();
+    uint32_t depth = node.attribute("depth").as_uint();
+    const std::string type = node.attribute("type").as_string();
+	bool tiled = node.attribute("tiled").as_bool();
 
-	// Read attributes for node <color>.
-	MACRO_ATTRREAD_LOOPBEG;
-		MACRO_ATTRREAD_CHECK_RET("id", id, mReader->getAttributeValue);
-		MACRO_ATTRREAD_CHECK_RET("width", width, XML_ReadNode_GetAttrVal_AsU32);
-		MACRO_ATTRREAD_CHECK_RET("height", height, XML_ReadNode_GetAttrVal_AsU32);
-		MACRO_ATTRREAD_CHECK_RET("depth", depth, XML_ReadNode_GetAttrVal_AsU32);
-		MACRO_ATTRREAD_CHECK_RET("type", type, mReader->getAttributeValue);
-		MACRO_ATTRREAD_CHECK_RET("tiled", tiled, XML_ReadNode_GetAttrVal_AsBool);
-	MACRO_ATTRREAD_LOOPEND;
-
-	// create new texture object.
-    CAMFImporter_NodeElement *ne = new CAMFImporter_NodeElement_Texture(mNodeElement_Cur);
-
-	CAMFImporter_NodeElement_Texture& als = *((CAMFImporter_NodeElement_Texture*)ne);// alias for convenience
-
-	// Check for child nodes
-    if (!mReader->isEmptyElement()) {
-        XML_ReadNode_GetVal_AsString(enc64_data);
+    if (node.empty()) {
+		return;
     }
 
+    // create new texture object.
+    AMFNodeElementBase *ne = new AMFTexture(mNodeElement_Cur);
+
+	AMFTexture& als = *((AMFTexture*)ne);// alias for convenience
+
+    std::string enc64_data;
+    XmlParser::getValueAsString(node, enc64_data);
+    // Check for child nodes
+
 	// check that all components was defined
     if (id.empty()) {
-        throw DeadlyImportError("ID for texture must be defined.");
+		throw DeadlyImportError("ID for texture must be defined.");
     }
     if (width < 1) {
-        Throw_IncorrectAttrValue("width");
+		throw DeadlyImportError("Invalid width for texture.");
     }
     if (height < 1) {
-        Throw_IncorrectAttrValue("height");
-    }
-    if (depth < 1) {
-        Throw_IncorrectAttrValue("depth");
-    }
+		throw DeadlyImportError("Invalid height for texture.");
+	}
     if (type != "grayscale") {
-        Throw_IncorrectAttrValue("type");
+		throw DeadlyImportError("Invalid type for texture.");
     }
     if (enc64_data.empty()) {
         throw DeadlyImportError("Texture data not defined.");
@@ -239,7 +198,9 @@ void AMFImporter::ParseNode_Texture()
 	als.Depth = depth;
 	als.Tiled = tiled;
 	ParseHelper_Decode_Base64(enc64_data, als.Data);
-
+    if (depth == 0) {
+        depth = (uint32_t)(als.Data.size() / (width * height));
+    }
     // check data size
     if ((width * height * depth) != als.Data.size()) {
         throw DeadlyImportError("Texture has incorrect data size.");
@@ -263,57 +224,93 @@ void AMFImporter::ParseNode_Texture()
 //   <utex1>, <utex2>, <utex3>, <vtex1>, <vtex2>, <vtex3>. Old name: <u1>, <u2>, <u3>, <v1>, <v2>, <v3>.
 //   Multi elements - No.
 //   Texture coordinates for every vertex of triangle.
-void AMFImporter::ParseNode_TexMap(const bool pUseOldName) {
-    std::string rtexid, gtexid, btexid, atexid;
-
+void AMFImporter::ParseNode_TexMap(XmlNode &node, const bool pUseOldName) {
 	// Read attributes for node <color>.
-	MACRO_ATTRREAD_LOOPBEG;
-		MACRO_ATTRREAD_CHECK_RET("rtexid", rtexid, mReader->getAttributeValue);
-		MACRO_ATTRREAD_CHECK_RET("gtexid", gtexid, mReader->getAttributeValue);
-		MACRO_ATTRREAD_CHECK_RET("btexid", btexid, mReader->getAttributeValue);
-		MACRO_ATTRREAD_CHECK_RET("atexid", atexid, mReader->getAttributeValue);
-	MACRO_ATTRREAD_LOOPEND;
+    AMFNodeElementBase *ne = new AMFTexMap(mNodeElement_Cur);
+    AMFTexMap &als = *((AMFTexMap *)ne); //
+    std::string rtexid, gtexid, btexid, atexid;
+    if (!node.empty()) {
+        for (pugi::xml_attribute &attr : node.attributes()) {
+            const std::string &currentAttr = attr.name();
+            if (currentAttr == "rtexid") {
+                rtexid = attr.as_string();
+            } else if (currentAttr == "gtexid") {
+                gtexid = attr.as_string();
+            } else if (currentAttr == "btexid") {
+                btexid = attr.as_string();
+            } else if (currentAttr == "atexid") {
+                atexid = attr.as_string();
+            }
+        }
+    }
 
-	// create new texture coordinates object.
-    CAMFImporter_NodeElement *ne = new CAMFImporter_NodeElement_TexMap(mNodeElement_Cur);
-
-	CAMFImporter_NodeElement_TexMap& als = *((CAMFImporter_NodeElement_TexMap*)ne);// alias for convenience
+	// create new texture coordinates object, alias for convenience
 	// check data
-	if(rtexid.empty() && gtexid.empty() && btexid.empty()) throw DeadlyImportError("ParseNode_TexMap. At least one texture ID must be defined.");
+	if (rtexid.empty() && gtexid.empty() && btexid.empty()) {
+		throw DeadlyImportError("ParseNode_TexMap. At least one texture ID must be defined.");
+	}
+
 	// Check for children nodes
-	XML_CheckNode_MustHaveChildren();
+	if (node.children().begin() == node.children().end()) {
+		throw DeadlyImportError("Invalid children definition.");
+	}
 	// read children nodes
 	bool read_flag[6] = { false, false, false, false, false, false };
 
-	ParseHelper_Node_Enter(ne);
-	if(!pUseOldName)
-	{
-		MACRO_NODECHECK_LOOPBEGIN("texmap");
-			MACRO_NODECHECK_READCOMP_F("utex1", read_flag[0], als.TextureCoordinate[0].x);
-			MACRO_NODECHECK_READCOMP_F("utex2", read_flag[1], als.TextureCoordinate[1].x);
-			MACRO_NODECHECK_READCOMP_F("utex3", read_flag[2], als.TextureCoordinate[2].x);
-			MACRO_NODECHECK_READCOMP_F("vtex1", read_flag[3], als.TextureCoordinate[0].y);
-			MACRO_NODECHECK_READCOMP_F("vtex2", read_flag[4], als.TextureCoordinate[1].y);
-			MACRO_NODECHECK_READCOMP_F("vtex3", read_flag[5], als.TextureCoordinate[2].y);
-		MACRO_NODECHECK_LOOPEND("texmap");
+	if (!pUseOldName) {
+        ParseHelper_Node_Enter(ne);
+        for ( XmlNode &currentNode : node.children()) {
+            const std::string &name = currentNode.name();
+            if (name == "utex1") {
+				read_flag[0] = true;
+                XmlParser::getValueAsReal(node, als.TextureCoordinate[0].x);
+            } else if (name == "utex2") {
+				read_flag[1] = true;
+                XmlParser::getValueAsReal(node, als.TextureCoordinate[1].x);
+            } else if (name == "utex3") {
+				read_flag[2] = true;
+                XmlParser::getValueAsReal(node, als.TextureCoordinate[2].x);
+            } else if (name == "vtex1") {
+				read_flag[3] = true;
+                XmlParser::getValueAsReal(node, als.TextureCoordinate[0].y);
+            } else if (name == "vtex2") {
+				read_flag[4] = true;
+                XmlParser::getValueAsReal(node, als.TextureCoordinate[1].y);
+            } else if (name == "vtex3") {
+				read_flag[5] = true;
+                XmlParser::getValueAsReal(node, als.TextureCoordinate[2].y);
+			}
+		}
+        ParseHelper_Node_Exit();
+	} else {
+		for (pugi::xml_attribute &attr : node.attributes()) {
+            const std::string name = attr.name();
+            if (name == "u") {
+				read_flag[0] = true;
+				als.TextureCoordinate[0].x = attr.as_float();
+            } else if (name == "u2") {
+				read_flag[1] = true;
+				als.TextureCoordinate[1].x = attr.as_float();
+            } else if (name == "u3") {
+				read_flag[2] = true;
+				als.TextureCoordinate[2].x = attr.as_float();
+            } else if (name == "v1") {
+				read_flag[3] = true;
+				als.TextureCoordinate[0].y = attr.as_float();
+            } else if (name == "v2") {
+				read_flag[4] = true;
+				als.TextureCoordinate[1].y = attr.as_float();
+            } else if (name == "v3") {
+				read_flag[5] = true;
+				als.TextureCoordinate[0].y = attr.as_float();
+			}
+		}
 	}
-	else
-	{
-		MACRO_NODECHECK_LOOPBEGIN("map");
-			MACRO_NODECHECK_READCOMP_F("u1", read_flag[0], als.TextureCoordinate[0].x);
-			MACRO_NODECHECK_READCOMP_F("u2", read_flag[1], als.TextureCoordinate[1].x);
-			MACRO_NODECHECK_READCOMP_F("u3", read_flag[2], als.TextureCoordinate[2].x);
-			MACRO_NODECHECK_READCOMP_F("v1", read_flag[3], als.TextureCoordinate[0].y);
-			MACRO_NODECHECK_READCOMP_F("v2", read_flag[4], als.TextureCoordinate[1].y);
-			MACRO_NODECHECK_READCOMP_F("v3", read_flag[5], als.TextureCoordinate[2].y);
-		MACRO_NODECHECK_LOOPEND("map");
-	}// if(!pUseOldName) else
-
-	ParseHelper_Node_Exit();
 
 	// check that all components was defined
-	if(!(read_flag[0] && read_flag[1] && read_flag[2] && read_flag[3] && read_flag[4] && read_flag[5]))
+	if (!(read_flag[0] && read_flag[1] && read_flag[2] && read_flag[3] && read_flag[4] && read_flag[5])) {
 		throw DeadlyImportError("Not all texture coordinates are defined.");
+	}
 
 	// copy attributes data
 	als.TextureID_R = rtexid;
@@ -321,7 +318,7 @@ void AMFImporter::ParseNode_TexMap(const bool pUseOldName) {
 	als.TextureID_B = btexid;
 	als.TextureID_A = atexid;
 
-	mNodeElement_List.push_back(ne);// add to node element list because its a new object in graph.
+	mNodeElement_List.push_back(ne);
 }
 
 }// namespace Assimp

code/AssetLib/AMF/AMFImporter_Node.hpp

@@ -3,9 +3,7 @@
 Open Asset Import Library (assimp)
 ---------------------------------------------------------------------------
 
-Copyright (c) 2006-2020, assimp team
-
-
+Copyright (c) 2006-2024, assimp team
 
 All rights reserved.
 
@@ -50,86 +48,76 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #ifndef INCLUDED_AI_AMF_IMPORTER_NODE_H
 #define INCLUDED_AI_AMF_IMPORTER_NODE_H
 
-// Header files, stdlib.
+// Header files, Assimp.
+#include <assimp/scene.h>
+#include <assimp/types.h>
+
 #include <list>
 #include <string>
 #include <vector>
 
-// Header files, Assimp.
-#include "assimp/types.h"
-#include "assimp/scene.h"
-
-/// \class CAMFImporter_NodeElement
 /// Base class for elements of nodes.
-class CAMFImporter_NodeElement {
+class AMFNodeElementBase {
 public:
 	/// Define what data type contain node element.
 	enum EType {
-		ENET_Color,        ///< Color element: <color>.
-		ENET_Constellation,///< Grouping element: <constellation>.
-		ENET_Coordinates,  ///< Coordinates element: <coordinates>.
-		ENET_Edge,         ///< Edge element: <edge>.
-		ENET_Instance,     ///< Grouping element: <constellation>.
-		ENET_Material,     ///< Material element: <material>.
-		ENET_Metadata,     ///< Metadata element: <metadata>.
-		ENET_Mesh,         ///< Metadata element: <mesh>.
-		ENET_Object,       ///< Element which hold object: <object>.
-		ENET_Root,         ///< Root element: <amf>.
-		ENET_Triangle,     ///< Triangle element: <triangle>.
-		ENET_TexMap,       ///< Texture coordinates element: <texmap> or <map>.
-		ENET_Texture,      ///< Texture element: <texture>.
-		ENET_Vertex,       ///< Vertex element: <vertex>.
-		ENET_Vertices,     ///< Vertex element: <vertices>.
-		ENET_Volume,       ///< Volume element: <volume>.
+		ENET_Color, ///< Color element: <color>.
+		ENET_Constellation, ///< Grouping element: <constellation>.
+		ENET_Coordinates, ///< Coordinates element: <coordinates>.
+		ENET_Edge, ///< Edge element: <edge>.
+		ENET_Instance, ///< Grouping element: <constellation>.
+		ENET_Material, ///< Material element: <material>.
+		ENET_Metadata, ///< Metadata element: <metadata>.
+		ENET_Mesh, ///< Metadata element: <mesh>.
+		ENET_Object, ///< Element which hold object: <object>.
+		ENET_Root, ///< Root element: <amf>.
+		ENET_Triangle, ///< Triangle element: <triangle>.
+		ENET_TexMap, ///< Texture coordinates element: <texmap> or <map>.
+		ENET_Texture, ///< Texture element: <texture>.
+		ENET_Vertex, ///< Vertex element: <vertex>.
+		ENET_Vertices, ///< Vertex element: <vertices>.
+		ENET_Volume, ///< Volume element: <volume>.
 
-		ENET_Invalid       ///< Element has invalid type and possible contain invalid data.
+		ENET_Invalid ///< Element has invalid type and possible contain invalid data.
 	};
 
-	const EType Type;///< Type of element.
-	std::string ID;///< ID of element.
-	CAMFImporter_NodeElement* Parent;///< Parent element. If nullptr then this node is root.
-	std::list<CAMFImporter_NodeElement*> Child;///< Child elements.
+	const EType Type; ///< Type of element.
+	std::string ID; ///< ID of element.
+	AMFNodeElementBase *Parent; ///< Parent element. If nullptr then this node is root.
+	std::list<AMFNodeElementBase *> Child; ///< Child elements.
 
-public:                                               /// Destructor, virtual..
-    virtual ~CAMFImporter_NodeElement() {
-        // empty
-    }
+public: /// Destructor, virtual..
+	virtual ~AMFNodeElementBase() = default;
 
 	/// Disabled copy constructor and co.
-	CAMFImporter_NodeElement(const CAMFImporter_NodeElement& pNodeElement) = delete;
-    CAMFImporter_NodeElement(CAMFImporter_NodeElement&&) = delete;
-    CAMFImporter_NodeElement& operator=(const CAMFImporter_NodeElement& pNodeElement) = delete;
-	CAMFImporter_NodeElement() = delete;
+	AMFNodeElementBase(const AMFNodeElementBase &pNodeElement) = delete;
+	AMFNodeElementBase(AMFNodeElementBase &&) = delete;
+	AMFNodeElementBase &operator=(const AMFNodeElementBase &pNodeElement) = delete;
+	AMFNodeElementBase() = delete;
 
 protected:
 	/// In constructor inheritor must set element type.
 	/// \param [in] pType - element type.
 	/// \param [in] pParent - parent element.
-	CAMFImporter_NodeElement(const EType pType, CAMFImporter_NodeElement* pParent)
-	: Type(pType)
-    , ID()
-    , Parent(pParent)
-    , Child() {
-        // empty
-    }
-};// class IAMFImporter_NodeElement
+	AMFNodeElementBase(const EType pType, AMFNodeElementBase *pParent) :
+			Type(pType), Parent(pParent) {
+		// empty
+	}
+}; // class IAMFImporter_NodeElement
 
-/// \struct CAMFImporter_NodeElement_Constellation
 /// A collection of objects or constellations with specific relative locations.
-struct CAMFImporter_NodeElement_Constellation : public CAMFImporter_NodeElement {
+struct AMFConstellation : public AMFNodeElementBase {
 	/// Constructor.
 	/// \param [in] pParent - pointer to parent node.
-	CAMFImporter_NodeElement_Constellation(CAMFImporter_NodeElement* pParent)
-		: CAMFImporter_NodeElement(ENET_Constellation, pParent)
-	{}
+	AMFConstellation(AMFNodeElementBase *pParent) :
+			AMFNodeElementBase(ENET_Constellation, pParent) {}
 
-};// struct CAMFImporter_NodeElement_Constellation
+}; // struct CAMFImporter_NodeElement_Constellation
 
-/// \struct CAMFImporter_NodeElement_Instance
 /// Part of constellation.
-struct CAMFImporter_NodeElement_Instance : public CAMFImporter_NodeElement {
+struct AMFInstance : public AMFNodeElementBase {
 
-	std::string ObjectID;///< ID of object for instantiation.
+	std::string ObjectID; ///< ID of object for instantiation.
 	/// \var Delta - The distance of translation in the x, y, or z direction, respectively, in the referenced object's coordinate system, to
 	/// create an instance of the object in the current constellation.
 	aiVector3D Delta;
@@ -140,201 +128,161 @@ struct CAMFImporter_NodeElement_Instance : public CAMFImporter_NodeElement {
 
 	/// Constructor.
 	/// \param [in] pParent - pointer to parent node.
-	CAMFImporter_NodeElement_Instance(CAMFImporter_NodeElement* pParent)
-		: CAMFImporter_NodeElement(ENET_Instance, pParent)
-	{}
+	AMFInstance(AMFNodeElementBase *pParent) :
+			AMFNodeElementBase(ENET_Instance, pParent) {}
 };
 
-/// \struct CAMFImporter_NodeElement_Metadata
 /// Structure that define metadata node.
-struct CAMFImporter_NodeElement_Metadata : public CAMFImporter_NodeElement {
+struct AMFMetadata : public AMFNodeElementBase {
 
-	std::string Type;///< Type of "Value". 
-	std::string Value;///< Value.
+	std::string Type; ///< Type of "Value".
+	std::string Value; ///< Value.
 
 	/// Constructor.
 	/// \param [in] pParent - pointer to parent node.
-	CAMFImporter_NodeElement_Metadata(CAMFImporter_NodeElement* pParent)
-		: CAMFImporter_NodeElement(ENET_Metadata, pParent)
-	{}
+	AMFMetadata(AMFNodeElementBase *pParent) :
+			AMFNodeElementBase(ENET_Metadata, pParent) {}
 };
 
-/// \struct CAMFImporter_NodeElement_Root
 /// Structure that define root node.
-struct CAMFImporter_NodeElement_Root : public CAMFImporter_NodeElement {
+struct AMFRoot : public AMFNodeElementBase {
 
-	std::string Unit;///< The units to be used. May be "inch", "millimeter", "meter", "feet", or "micron".
-	std::string Version;///< Version of format.
+	std::string Unit; ///< The units to be used. May be "inch", "millimeter", "meter", "feet", or "micron".
+	std::string Version; ///< Version of format.
 
 	/// Constructor.
 	/// \param [in] pParent - pointer to parent node.
-	CAMFImporter_NodeElement_Root(CAMFImporter_NodeElement* pParent)
-		: CAMFImporter_NodeElement(ENET_Root, pParent)
-	{}
+	AMFRoot(AMFNodeElementBase *pParent) :
+			AMFNodeElementBase(ENET_Root, pParent) {}
 };
 
-/// \struct CAMFImporter_NodeElement_Color
 /// Structure that define object node.
-struct CAMFImporter_NodeElement_Color : public CAMFImporter_NodeElement {
-	bool Composed;                  ///< Type of color stored: if true then look for formula in \ref Color_Composed[4], else - in \ref Color.
-	std::string Color_Composed[4];  ///< By components formulas of composed color. [0..3] - RGBA.
-	aiColor4D Color;                ///< Constant color.
-	std::string Profile;            ///< The ICC color space used to interpret the three color channels r, g and b..
+struct AMFColor : public AMFNodeElementBase {
+	bool Composed; ///< Type of color stored: if true then look for formula in \ref Color_Composed[4], else - in \ref Color.
+	std::string Color_Composed[4]; ///< By components formulas of composed color. [0..3] - RGBA.
+	aiColor4D Color; ///< Constant color.
+	std::string Profile; ///< The ICC color space used to interpret the three color channels r, g and b..
 
 	/// @brief  Constructor.
 	/// @param [in] pParent - pointer to parent node.
-	CAMFImporter_NodeElement_Color(CAMFImporter_NodeElement* pParent)
-	: CAMFImporter_NodeElement(ENET_Color, pParent)
-    , Composed( false )
-    , Color()
-    , Profile() {
-        // empty
-    }
+	AMFColor(AMFNodeElementBase *pParent) :
+			AMFNodeElementBase(ENET_Color, pParent), Composed(false), Color() {
+		// empty
+	}
 };
 
-/// \struct CAMFImporter_NodeElement_Material
 /// Structure that define material node.
-struct CAMFImporter_NodeElement_Material : public CAMFImporter_NodeElement {
-	
+struct AMFMaterial : public AMFNodeElementBase {
+
 	/// Constructor.
 	/// \param [in] pParent - pointer to parent node.
-	CAMFImporter_NodeElement_Material(CAMFImporter_NodeElement* pParent)
-		: CAMFImporter_NodeElement(ENET_Material, pParent)
-	{}
-
+	AMFMaterial(AMFNodeElementBase *pParent) :
+			AMFNodeElementBase(ENET_Material, pParent) {}
 };
 
-/// \struct CAMFImporter_NodeElement_Object
 /// Structure that define object node.
-struct CAMFImporter_NodeElement_Object : public CAMFImporter_NodeElement {
+struct AMFObject : public AMFNodeElementBase {
 
-    /// Constructor.
+	/// Constructor.
 	/// \param [in] pParent - pointer to parent node.
-	CAMFImporter_NodeElement_Object(CAMFImporter_NodeElement* pParent)
-		: CAMFImporter_NodeElement(ENET_Object, pParent)
-	{}
+	AMFObject(AMFNodeElementBase *pParent) :
+			AMFNodeElementBase(ENET_Object, pParent) {}
 };
 
 /// \struct CAMFImporter_NodeElement_Mesh
 /// Structure that define mesh node.
-struct CAMFImporter_NodeElement_Mesh : public CAMFImporter_NodeElement {
+struct AMFMesh : public AMFNodeElementBase {
 	/// Constructor.
 	/// \param [in] pParent - pointer to parent node.
-	CAMFImporter_NodeElement_Mesh(CAMFImporter_NodeElement* pParent)
-		: CAMFImporter_NodeElement(ENET_Mesh, pParent)
-	{}
+	AMFMesh(AMFNodeElementBase *pParent) :
+			AMFNodeElementBase(ENET_Mesh, pParent) {}
 };
 
-/// \struct CAMFImporter_NodeElement_Vertex
 /// Structure that define vertex node.
-struct CAMFImporter_NodeElement_Vertex : public CAMFImporter_NodeElement {
+struct AMFVertex : public AMFNodeElementBase {
 	/// Constructor.
 	/// \param [in] pParent - pointer to parent node.
-	CAMFImporter_NodeElement_Vertex(CAMFImporter_NodeElement* pParent)
-		: CAMFImporter_NodeElement(ENET_Vertex, pParent)
-	{}
+	AMFVertex(AMFNodeElementBase *pParent) :
+			AMFNodeElementBase(ENET_Vertex, pParent) {}
 };
 
-/// \struct CAMFImporter_NodeElement_Edge
 /// Structure that define edge node.
-struct CAMFImporter_NodeElement_Edge : public CAMFImporter_NodeElement {
+struct AMFEdge : public AMFNodeElementBase {
 	/// Constructor.
 	/// \param [in] pParent - pointer to parent node.
-	CAMFImporter_NodeElement_Edge(CAMFImporter_NodeElement* pParent)
-		: CAMFImporter_NodeElement(ENET_Edge, pParent)
-	{}
-
+	AMFEdge(AMFNodeElementBase *pParent) :
+			AMFNodeElementBase(ENET_Edge, pParent) {}
 };
 
-/// \struct CAMFImporter_NodeElement_Vertices
 /// Structure that define vertices node.
-struct CAMFImporter_NodeElement_Vertices : public CAMFImporter_NodeElement {
+struct AMFVertices : public AMFNodeElementBase {
 	/// Constructor.
 	/// \param [in] pParent - pointer to parent node.
-	CAMFImporter_NodeElement_Vertices(CAMFImporter_NodeElement* pParent)
-		: CAMFImporter_NodeElement(ENET_Vertices, pParent)
-	{}
+	AMFVertices(AMFNodeElementBase *pParent) :
+			AMFNodeElementBase(ENET_Vertices, pParent) {}
 };
 
-/// \struct CAMFImporter_NodeElement_Volume
 /// Structure that define volume node.
-struct CAMFImporter_NodeElement_Volume : public CAMFImporter_NodeElement {
-	std::string MaterialID;///< Which material to use.
-	std::string Type;///< What this volume describes can be “region” or “support”. If none specified, “object” is assumed.
+struct AMFVolume : public AMFNodeElementBase {
+	std::string MaterialID; ///< Which material to use.
+	std::string Type; ///< What this volume describes can be "region" or "support". If none specified, "object" is assumed.
 
 	/// Constructor.
 	/// \param [in] pParent - pointer to parent node.
-	CAMFImporter_NodeElement_Volume(CAMFImporter_NodeElement* pParent)
-		: CAMFImporter_NodeElement(ENET_Volume, pParent)
-	{}
+	AMFVolume(AMFNodeElementBase *pParent) :
+			AMFNodeElementBase(ENET_Volume, pParent) {}
 };
 
-/// \struct CAMFImporter_NodeElement_Coordinates
 /// Structure that define coordinates node.
-struct CAMFImporter_NodeElement_Coordinates : public CAMFImporter_NodeElement
-{
-	aiVector3D Coordinate;///< Coordinate.
+struct AMFCoordinates : public AMFNodeElementBase {
+	aiVector3D Coordinate; ///< Coordinate.
 
 	/// Constructor.
 	/// \param [in] pParent - pointer to parent node.
-	CAMFImporter_NodeElement_Coordinates(CAMFImporter_NodeElement* pParent)
-		: CAMFImporter_NodeElement(ENET_Coordinates, pParent)
-	{}
-
+	AMFCoordinates(AMFNodeElementBase *pParent) :
+			AMFNodeElementBase(ENET_Coordinates, pParent) {}
 };
 
-/// \struct CAMFImporter_NodeElement_TexMap
 /// Structure that define texture coordinates node.
-struct CAMFImporter_NodeElement_TexMap : public CAMFImporter_NodeElement {
-	aiVector3D TextureCoordinate[3];///< Texture coordinates.
-	std::string TextureID_R;///< Texture ID for red color component.
-	std::string TextureID_G;///< Texture ID for green color component.
-	std::string TextureID_B;///< Texture ID for blue color component.
-	std::string TextureID_A;///< Texture ID for alpha color component.
+struct AMFTexMap : public AMFNodeElementBase {
+	aiVector3D TextureCoordinate[3]; ///< Texture coordinates.
+	std::string TextureID_R; ///< Texture ID for red color component.
+	std::string TextureID_G; ///< Texture ID for green color component.
+	std::string TextureID_B; ///< Texture ID for blue color component.
+	std::string TextureID_A; ///< Texture ID for alpha color component.
 
 	/// Constructor.
 	/// \param [in] pParent - pointer to parent node.
-	CAMFImporter_NodeElement_TexMap(CAMFImporter_NodeElement* pParent)
-	: CAMFImporter_NodeElement(ENET_TexMap, pParent)
-    , TextureCoordinate{}
-    , TextureID_R()
-    , TextureID_G()
-    , TextureID_B()
-    , TextureID_A()	{
-        // empty
-    }
+	AMFTexMap(AMFNodeElementBase *pParent) :
+			AMFNodeElementBase(ENET_TexMap, pParent), TextureCoordinate{} {
+		// empty
+	}
 };
 
-/// \struct CAMFImporter_NodeElement_Triangle
 /// Structure that define triangle node.
-struct CAMFImporter_NodeElement_Triangle : public CAMFImporter_NodeElement {
-	size_t V[3];///< Triangle vertices.
+struct AMFTriangle : public AMFNodeElementBase {
+	size_t V[3]; ///< Triangle vertices.
 
 	/// Constructor.
 	/// \param [in] pParent - pointer to parent node.
-	CAMFImporter_NodeElement_Triangle(CAMFImporter_NodeElement* pParent)
-	: CAMFImporter_NodeElement(ENET_Triangle, pParent) {
-        // empty
-    }
+	AMFTriangle(AMFNodeElementBase *pParent) :
+			AMFNodeElementBase(ENET_Triangle, pParent) {
+		// empty
+	}
 };
 
 /// Structure that define texture node.
-struct CAMFImporter_NodeElement_Texture : public CAMFImporter_NodeElement {
-	size_t Width, Height, Depth;///< Size of the texture.
-	std::vector<uint8_t> Data;///< Data of the texture.
+struct AMFTexture : public AMFNodeElementBase {
+	size_t Width, Height, Depth; ///< Size of the texture.
+	std::vector<uint8_t> Data; ///< Data of the texture.
 	bool Tiled;
 
 	/// Constructor.
 	/// \param [in] pParent - pointer to parent node.
-	CAMFImporter_NodeElement_Texture(CAMFImporter_NodeElement* pParent)
-	: CAMFImporter_NodeElement(ENET_Texture, pParent)
-    , Width( 0 )
-    , Height( 0 )
-    , Depth( 0 )
-    , Data()
-    , Tiled( false ){
-        // empty
-    }
+	AMFTexture(AMFNodeElementBase *pParent) :
+			AMFNodeElementBase(ENET_Texture, pParent), Width(0), Height(0), Depth(0), Data(), Tiled(false) {
+		// empty
+	}
 };
 
 #endif // INCLUDED_AI_AMF_IMPORTER_NODE_H

code/AssetLib/AMF/AMFImporter_Postprocess.cpp

@@ -3,9 +3,7 @@
 Open Asset Import Library (assimp)
 ---------------------------------------------------------------------------
 
-Copyright (c) 2006-2020, assimp team
-
-
+Copyright (c) 2006-2024, assimp team
 
 All rights reserved.
 
@@ -50,12 +48,10 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 #include "AMFImporter.hpp"
 
-// Header files, Assimp.
 #include <assimp/SceneCombiner.h>
 #include <assimp/StandardShapes.h>
 #include <assimp/StringUtils.h>
 
-// Header files, stdlib.
 #include <iterator>
 
 namespace Assimp {
@@ -66,12 +62,14 @@ aiColor4D AMFImporter::SPP_Material::GetColor(const float /*pX*/, const float /*
     // Check if stored data are supported.
     if (!Composition.empty()) {
         throw DeadlyImportError("IME. GetColor for composition");
-    } else if (Color->Composed) {
-        throw DeadlyImportError("IME. GetColor, composed color");
-    } else {
-        tcol = Color->Color;
     }
 
+    if (Color->Composed) {
+        throw DeadlyImportError("IME. GetColor, composed color");
+    }
+
+    tcol = Color->Color;
+
     // Check if default color must be used
     if ((tcol.r == 0) && (tcol.g == 0) && (tcol.b == 0) && (tcol.a == 0)) {
         tcol.r = 0.5f;
@@ -83,61 +81,61 @@ aiColor4D AMFImporter::SPP_Material::GetColor(const float /*pX*/, const float /*
     return tcol;
 }
 
-void AMFImporter::PostprocessHelper_CreateMeshDataArray(const CAMFImporter_NodeElement_Mesh &pNodeElement, std::vector<aiVector3D> &pVertexCoordinateArray,
-        std::vector<CAMFImporter_NodeElement_Color *> &pVertexColorArray) const {
-    CAMFImporter_NodeElement_Vertices *vn = nullptr;
+void AMFImporter::PostprocessHelper_CreateMeshDataArray(const AMFMesh &nodeElement, std::vector<aiVector3D> &vertexCoordinateArray,
+        std::vector<AMFColor *> &pVertexColorArray) const {
+    AMFVertices  *vn = nullptr;
     size_t col_idx;
 
     // All data stored in "vertices", search for it.
-    for (CAMFImporter_NodeElement *ne_child : pNodeElement.Child) {
-        if (ne_child->Type == CAMFImporter_NodeElement::ENET_Vertices) vn = (CAMFImporter_NodeElement_Vertices *)ne_child;
+    for (AMFNodeElementBase *ne_child : nodeElement.Child) {
+        if (ne_child->Type == AMFNodeElementBase::ENET_Vertices) {
+            vn = (AMFVertices*)ne_child;
+        }
     }
 
     // If "vertices" not found then no work for us.
-    if (vn == nullptr) return;
+    if (vn == nullptr) {
+        return;
+    }
 
-    pVertexCoordinateArray.reserve(vn->Child.size()); // all coordinates stored as child and we need to reserve space for future push_back's.
-    pVertexColorArray.resize(vn->Child.size()); // colors count equal vertices count.
+    // all coordinates stored as child and we need to reserve space for future push_back's.
+    vertexCoordinateArray.reserve(vn->Child.size());
+
+    // colors count equal vertices count.
+    pVertexColorArray.resize(vn->Child.size());
     col_idx = 0;
+
     // Inside vertices collect all data and place to arrays
-    for (CAMFImporter_NodeElement *vn_child : vn->Child) {
+    for (AMFNodeElementBase *vn_child : vn->Child) {
         // vertices, colors
-        if (vn_child->Type == CAMFImporter_NodeElement::ENET_Vertex) {
+        if (vn_child->Type == AMFNodeElementBase::ENET_Vertex) {
             // by default clear color for current vertex
             pVertexColorArray[col_idx] = nullptr;
 
-            for (CAMFImporter_NodeElement *vtx : vn_child->Child) {
-                if (vtx->Type == CAMFImporter_NodeElement::ENET_Coordinates) {
-                    pVertexCoordinateArray.push_back(((CAMFImporter_NodeElement_Coordinates *)vtx)->Coordinate);
-
+            for (AMFNodeElementBase *vtx : vn_child->Child) {
+                if (vtx->Type == AMFNodeElementBase::ENET_Coordinates) {
+                    vertexCoordinateArray.push_back(((AMFCoordinates *)vtx)->Coordinate);
                     continue;
                 }
 
-                if (vtx->Type == CAMFImporter_NodeElement::ENET_Color) {
-                    pVertexColorArray[col_idx] = (CAMFImporter_NodeElement_Color *)vtx;
-
+                if (vtx->Type == AMFNodeElementBase::ENET_Color) {
+                    pVertexColorArray[col_idx] = (AMFColor *)vtx;
                     continue;
                 }
-            } // for(CAMFImporter_NodeElement* vtx: vn_child->Child)
+            }
 
-            col_idx++;
-        } // if(vn_child->Type == CAMFImporter_NodeElement::ENET_Vertex)
-    } // for(CAMFImporter_NodeElement* vn_child: vn->Child)
+            ++col_idx;
+        }
+    }
 }
 
-size_t AMFImporter::PostprocessHelper_GetTextureID_Or_Create(const std::string &pID_R, const std::string &pID_G, const std::string &pID_B,
-        const std::string &pID_A) {
-    size_t TextureConverted_Index;
-    std::string TextureConverted_ID;
-
-    // check input data
-    if (pID_R.empty() && pID_G.empty() && pID_B.empty() && pID_A.empty())
+size_t AMFImporter::PostprocessHelper_GetTextureID_Or_Create(const std::string &r, const std::string &g, const std::string &b, const std::string &a) {
+    if (r.empty() && g.empty() && b.empty() && a.empty()) {
         throw DeadlyImportError("PostprocessHelper_GetTextureID_Or_Create. At least one texture ID must be defined.");
+    }
 
-    // Create ID
-    TextureConverted_ID = pID_R + "_" + pID_G + "_" + pID_B + "_" + pID_A;
-    // Check if texture specified by set of IDs is converted already.
-    TextureConverted_Index = 0;
+    std::string TextureConverted_ID = r + "_" + g + "_" + b + "_" + a;
+    size_t TextureConverted_Index = 0;
     for (const SPP_Texture &tex_convd : mTexture_Converted) {
         if (tex_convd.ID == TextureConverted_ID) {
             return TextureConverted_Index;
@@ -146,52 +144,60 @@ size_t AMFImporter::PostprocessHelper_GetTextureID_Or_Create(const std::string &
         }
     }
 
-    //
     // Converted texture not found, create it.
-    //
-    CAMFImporter_NodeElement_Texture *src_texture[4]{ nullptr };
-    std::vector<CAMFImporter_NodeElement_Texture *> src_texture_4check;
+    AMFTexture *src_texture[4] {
+        nullptr
+    };
+    std::vector<AMFTexture *> src_texture_4check;
     SPP_Texture converted_texture;
 
     { // find all specified source textures
-        CAMFImporter_NodeElement *t_tex;
+        AMFNodeElementBase *t_tex = nullptr;
 
         // R
-        if (!pID_R.empty()) {
-            if (!Find_NodeElement(pID_R, CAMFImporter_NodeElement::ENET_Texture, &t_tex)) Throw_ID_NotFound(pID_R);
+        if (!r.empty()) {
+            if (!Find_NodeElement(r, AMFNodeElementBase::EType::ENET_Texture, &t_tex)) {
+                Throw_ID_NotFound(r);
+            }
 
-            src_texture[0] = (CAMFImporter_NodeElement_Texture *)t_tex;
-            src_texture_4check.push_back((CAMFImporter_NodeElement_Texture *)t_tex);
+            src_texture[0] = (AMFTexture *)t_tex;
+            src_texture_4check.push_back((AMFTexture *)t_tex);
         } else {
             src_texture[0] = nullptr;
         }
 
         // G
-        if (!pID_G.empty()) {
-            if (!Find_NodeElement(pID_G, CAMFImporter_NodeElement::ENET_Texture, &t_tex)) Throw_ID_NotFound(pID_G);
+        if (!g.empty()) {
+            if (!Find_NodeElement(g, AMFNodeElementBase::ENET_Texture, &t_tex)) {
+                Throw_ID_NotFound(g);
+            }
 
-            src_texture[1] = (CAMFImporter_NodeElement_Texture *)t_tex;
-            src_texture_4check.push_back((CAMFImporter_NodeElement_Texture *)t_tex);
+            src_texture[1] = (AMFTexture *)t_tex;
+            src_texture_4check.push_back((AMFTexture *)t_tex);
         } else {
             src_texture[1] = nullptr;
         }
 
         // B
-        if (!pID_B.empty()) {
-            if (!Find_NodeElement(pID_B, CAMFImporter_NodeElement::ENET_Texture, &t_tex)) Throw_ID_NotFound(pID_B);
+        if (!b.empty()) {
+            if (!Find_NodeElement(b, AMFNodeElementBase::ENET_Texture, &t_tex)) {
+                Throw_ID_NotFound(b);
+            }
 
-            src_texture[2] = (CAMFImporter_NodeElement_Texture *)t_tex;
-            src_texture_4check.push_back((CAMFImporter_NodeElement_Texture *)t_tex);
+            src_texture[2] = (AMFTexture *)t_tex;
+            src_texture_4check.push_back((AMFTexture *)t_tex);
         } else {
             src_texture[2] = nullptr;
         }
 
         // A
-        if (!pID_A.empty()) {
-            if (!Find_NodeElement(pID_A, CAMFImporter_NodeElement::ENET_Texture, &t_tex)) Throw_ID_NotFound(pID_A);
+        if (!a.empty()) {
+            if (!Find_NodeElement(a, AMFNodeElementBase::ENET_Texture, &t_tex)) {
+                Throw_ID_NotFound(a);
+            }
 
-            src_texture[3] = (CAMFImporter_NodeElement_Texture *)t_tex;
-            src_texture_4check.push_back((CAMFImporter_NodeElement_Texture *)t_tex);
+            src_texture[3] = (AMFTexture *)t_tex;
+            src_texture_4check.push_back((AMFTexture *)t_tex);
         } else {
             src_texture[3] = nullptr;
         }
@@ -213,38 +219,38 @@ size_t AMFImporter::PostprocessHelper_GetTextureID_Or_Create(const std::string &
     converted_texture.Depth = src_texture_4check[0]->Depth;
     // if one of source texture is tiled then converted texture is tiled too.
     converted_texture.Tiled = false;
-    for (uint8_t i = 0; i < src_texture_4check.size(); i++)
+    for (uint8_t i = 0; i < src_texture_4check.size(); ++i) {
         converted_texture.Tiled |= src_texture_4check[i]->Tiled;
+    }
 
     // Create format hint.
-    strcpy(converted_texture.FormatHint, "rgba0000"); // copy initial string.
-    if (!pID_R.empty()) converted_texture.FormatHint[4] = '8';
-    if (!pID_G.empty()) converted_texture.FormatHint[5] = '8';
-    if (!pID_B.empty()) converted_texture.FormatHint[6] = '8';
-    if (!pID_A.empty()) converted_texture.FormatHint[7] = '8';
+    constexpr char templateColor[] = "rgba0000";
+    memcpy(converted_texture.FormatHint, templateColor, 8);
+    if (!r.empty()) converted_texture.FormatHint[4] = '8';
+    if (!g.empty()) converted_texture.FormatHint[5] = '8';
+    if (!b.empty()) converted_texture.FormatHint[6] = '8';
+    if (!a.empty()) converted_texture.FormatHint[7] = '8';
 
-    //
     // Сopy data of textures.
-    //
     size_t tex_size = 0;
     size_t step = 0;
     size_t off_g = 0;
     size_t off_b = 0;
 
     // Calculate size of the target array and rule how data will be copied.
-    if (!pID_R.empty() && nullptr != src_texture[0]) {
+    if (!r.empty() && nullptr != src_texture[0]) {
         tex_size += src_texture[0]->Data.size();
         step++, off_g++, off_b++;
     }
-    if (!pID_G.empty() && nullptr != src_texture[1]) {
+    if (!g.empty() && nullptr != src_texture[1]) {
         tex_size += src_texture[1]->Data.size();
         step++, off_b++;
     }
-    if (!pID_B.empty() && nullptr != src_texture[2]) {
+    if (!b.empty() && nullptr != src_texture[2]) {
         tex_size += src_texture[2]->Data.size();
         step++;
     }
-    if (!pID_A.empty() && nullptr != src_texture[3]) {
+    if (!a.empty() && nullptr != src_texture[3]) {
         tex_size += src_texture[3]->Data.size();
         step++;
     }
@@ -255,17 +261,17 @@ size_t AMFImporter::PostprocessHelper_GetTextureID_Or_Create(const std::string &
     auto CopyTextureData = [&](const std::string &pID, const size_t pOffset, const size_t pStep, const uint8_t pSrcTexNum) -> void {
         if (!pID.empty()) {
             for (size_t idx_target = pOffset, idx_src = 0; idx_target < tex_size; idx_target += pStep, idx_src++) {
-                CAMFImporter_NodeElement_Texture *tex = src_texture[pSrcTexNum];
+                AMFTexture *tex = src_texture[pSrcTexNum];
                 ai_assert(tex);
                 converted_texture.Data[idx_target] = tex->Data.at(idx_src);
             }
         }
     }; // auto CopyTextureData = [&](const size_t pOffset, const size_t pStep, const uint8_t pSrcTexNum) -> void
 
-    CopyTextureData(pID_R, 0, step, 0);
-    CopyTextureData(pID_G, off_g, step, 1);
-    CopyTextureData(pID_B, off_b, step, 2);
-    CopyTextureData(pID_A, step - 1, step, 3);
+    CopyTextureData(r, 0, step, 0);
+    CopyTextureData(g, off_g, step, 1);
+    CopyTextureData(b, off_b, step, 2);
+    CopyTextureData(a, step - 1, step, 3);
 
     // Store new converted texture ID
     converted_texture.ID = TextureConverted_ID;
@@ -276,7 +282,7 @@ size_t AMFImporter::PostprocessHelper_GetTextureID_Or_Create(const std::string &
 }
 
 void AMFImporter::PostprocessHelper_SplitFacesByTextureID(std::list<SComplexFace> &pInputList, std::list<std::list<SComplexFace>> &pOutputList_Separated) {
-    auto texmap_is_equal = [](const CAMFImporter_NodeElement_TexMap *pTexMap1, const CAMFImporter_NodeElement_TexMap *pTexMap2) -> bool {
+    auto texmap_is_equal = [](const AMFTexMap *pTexMap1, const AMFTexMap *pTexMap2) -> bool {
         if ((pTexMap1 == nullptr) && (pTexMap2 == nullptr)) return true;
         if (pTexMap1 == nullptr) return false;
         if (pTexMap2 == nullptr) return false;
@@ -313,73 +319,80 @@ void AMFImporter::PostprocessHelper_SplitFacesByTextureID(std::list<SComplexFace
     } while (!pInputList.empty());
 }
 
-void AMFImporter::Postprocess_AddMetadata(const std::list<CAMFImporter_NodeElement_Metadata *> &metadataList, aiNode &sceneNode) const {
-    if (!metadataList.empty()) {
-        if (sceneNode.mMetaData != nullptr) throw DeadlyImportError("Postprocess. MetaData member in node are not nullptr. Something went wrong.");
+void AMFImporter::Postprocess_AddMetadata(const AMFMetaDataArray &metadataList, aiNode &sceneNode) const {
+    if (metadataList.empty()) {
+        return;
+    }
 
-        // copy collected metadata to output node.
-        sceneNode.mMetaData = aiMetadata::Alloc(static_cast<unsigned int>(metadataList.size()));
-        size_t meta_idx(0);
+    if (sceneNode.mMetaData != nullptr) {
+        throw DeadlyImportError("Postprocess. MetaData member in node are not nullptr. Something went wrong.");
+    }
 
-        for (const CAMFImporter_NodeElement_Metadata &metadata : metadataList) {
-            sceneNode.mMetaData->Set(static_cast<unsigned int>(meta_idx++), metadata.Type, aiString(metadata.Value));
-        }
-    } // if(!metadataList.empty())
+    // copy collected metadata to output node.
+    sceneNode.mMetaData = aiMetadata::Alloc(static_cast<unsigned int>(metadataList.size()));
+    size_t meta_idx(0);
+
+    for (const AMFMetadata *metadata : metadataList) {
+        sceneNode.mMetaData->Set(static_cast<unsigned int>(meta_idx++), metadata->Type, aiString(metadata->Value));
+    }
 }
 
-void AMFImporter::Postprocess_BuildNodeAndObject(const CAMFImporter_NodeElement_Object &pNodeElement, std::list<aiMesh *> &pMeshList, aiNode **pSceneNode) {
-    CAMFImporter_NodeElement_Color *object_color = nullptr;
+void AMFImporter::Postprocess_BuildNodeAndObject(const AMFObject &pNodeElement, MeshArray &meshList, aiNode **pSceneNode) {
+    AMFColor *object_color = nullptr;
 
     // create new aiNode and set name as <object> has.
     *pSceneNode = new aiNode;
     (*pSceneNode)->mName = pNodeElement.ID;
     // read mesh and color
-    for (const CAMFImporter_NodeElement *ne_child : pNodeElement.Child) {
+    for (const AMFNodeElementBase *ne_child : pNodeElement.Child) {
         std::vector<aiVector3D> vertex_arr;
-        std::vector<CAMFImporter_NodeElement_Color *> color_arr;
+        std::vector<AMFColor *> color_arr;
 
         // color for object
-        if (ne_child->Type == CAMFImporter_NodeElement::ENET_Color) object_color = (CAMFImporter_NodeElement_Color *)ne_child;
+        if (ne_child->Type == AMFNodeElementBase::ENET_Color) {
+            object_color = (AMFColor *) ne_child;
+        }
 
-        if (ne_child->Type == CAMFImporter_NodeElement::ENET_Mesh) {
+        if (ne_child->Type == AMFNodeElementBase::ENET_Mesh) {
             // Create arrays from children of mesh: vertices.
-            PostprocessHelper_CreateMeshDataArray(*((CAMFImporter_NodeElement_Mesh *)ne_child), vertex_arr, color_arr);
+            PostprocessHelper_CreateMeshDataArray(*((AMFMesh *)ne_child), vertex_arr, color_arr);
             // Use this arrays as a source when creating every aiMesh
-            Postprocess_BuildMeshSet(*((CAMFImporter_NodeElement_Mesh *)ne_child), vertex_arr, color_arr, object_color, pMeshList, **pSceneNode);
+            Postprocess_BuildMeshSet(*((AMFMesh *)ne_child), vertex_arr, color_arr, object_color, meshList, **pSceneNode);
         }
     } // for(const CAMFImporter_NodeElement* ne_child: pNodeElement)
 }
 
-void AMFImporter::Postprocess_BuildMeshSet(const CAMFImporter_NodeElement_Mesh &pNodeElement, const std::vector<aiVector3D> &pVertexCoordinateArray,
-        const std::vector<CAMFImporter_NodeElement_Color *> &pVertexColorArray,
-        const CAMFImporter_NodeElement_Color *pObjectColor, std::list<aiMesh *> &pMeshList, aiNode &pSceneNode) {
+void AMFImporter::Postprocess_BuildMeshSet(const AMFMesh &pNodeElement, const std::vector<aiVector3D> &pVertexCoordinateArray,
+        const std::vector<AMFColor *> &pVertexColorArray, const AMFColor *pObjectColor, MeshArray &pMeshList, aiNode &pSceneNode) {
     std::list<unsigned int> mesh_idx;
 
     // all data stored in "volume", search for it.
-    for (const CAMFImporter_NodeElement *ne_child : pNodeElement.Child) {
-        const CAMFImporter_NodeElement_Color *ne_volume_color = nullptr;
+    for (const AMFNodeElementBase *ne_child : pNodeElement.Child) {
+        const AMFColor *ne_volume_color = nullptr;
         const SPP_Material *cur_mat = nullptr;
 
-        if (ne_child->Type == CAMFImporter_NodeElement::ENET_Volume) {
+        if (ne_child->Type == AMFNodeElementBase::ENET_Volume) {
             /******************* Get faces *******************/
-            const CAMFImporter_NodeElement_Volume *ne_volume = reinterpret_cast<const CAMFImporter_NodeElement_Volume *>(ne_child);
+            const AMFVolume *ne_volume = reinterpret_cast<const AMFVolume *>(ne_child);
 
             std::list<SComplexFace> complex_faces_list; // List of the faces of the volume.
             std::list<std::list<SComplexFace>> complex_faces_toplist; // List of the face list for every mesh.
 
             // check if volume use material
             if (!ne_volume->MaterialID.empty()) {
-                if (!Find_ConvertedMaterial(ne_volume->MaterialID, &cur_mat)) Throw_ID_NotFound(ne_volume->MaterialID);
+                if (!Find_ConvertedMaterial(ne_volume->MaterialID, &cur_mat)) {
+                    Throw_ID_NotFound(ne_volume->MaterialID);
+                }
             }
 
             // inside "volume" collect all data and place to arrays or create new objects
-            for (const CAMFImporter_NodeElement *ne_volume_child : ne_volume->Child) {
+            for (const AMFNodeElementBase *ne_volume_child : ne_volume->Child) {
                 // color for volume
-                if (ne_volume_child->Type == CAMFImporter_NodeElement::ENET_Color) {
-                    ne_volume_color = reinterpret_cast<const CAMFImporter_NodeElement_Color *>(ne_volume_child);
-                } else if (ne_volume_child->Type == CAMFImporter_NodeElement::ENET_Triangle) // triangles, triangles colors
+                if (ne_volume_child->Type == AMFNodeElementBase::ENET_Color) {
+                    ne_volume_color = reinterpret_cast<const AMFColor *>(ne_volume_child);
+                } else if (ne_volume_child->Type == AMFNodeElementBase::ENET_Triangle) // triangles, triangles colors
                 {
-                    const CAMFImporter_NodeElement_Triangle &tri_al = *reinterpret_cast<const CAMFImporter_NodeElement_Triangle *>(ne_volume_child);
+                    const AMFTriangle &tri_al = *reinterpret_cast<const AMFTriangle *>(ne_volume_child);
 
                     SComplexFace complex_face;
 
@@ -388,11 +401,11 @@ void AMFImporter::Postprocess_BuildMeshSet(const CAMFImporter_NodeElement_Mesh &
                     complex_face.TexMap = nullptr;
                     // get data from triangle children: color, texture coordinates.
                     if (tri_al.Child.size()) {
-                        for (const CAMFImporter_NodeElement *ne_triangle_child : tri_al.Child) {
-                            if (ne_triangle_child->Type == CAMFImporter_NodeElement::ENET_Color)
-                                complex_face.Color = reinterpret_cast<const CAMFImporter_NodeElement_Color *>(ne_triangle_child);
-                            else if (ne_triangle_child->Type == CAMFImporter_NodeElement::ENET_TexMap)
-                                complex_face.TexMap = reinterpret_cast<const CAMFImporter_NodeElement_TexMap *>(ne_triangle_child);
+                        for (const AMFNodeElementBase *ne_triangle_child : tri_al.Child) {
+                            if (ne_triangle_child->Type == AMFNodeElementBase::ENET_Color)
+                                complex_face.Color = reinterpret_cast<const AMFColor *>(ne_triangle_child);
+                            else if (ne_triangle_child->Type == AMFNodeElementBase::ENET_TexMap)
+                                complex_face.TexMap = reinterpret_cast<const AMFTexMap *>(ne_triangle_child);
                         }
                     } // if(tri_al.Child.size())
 
@@ -416,21 +429,24 @@ void AMFImporter::Postprocess_BuildMeshSet(const CAMFImporter_NodeElement_Mesh &
 
                     if (pBiggerThan != nullptr) {
                         bool found = false;
-
+                        const size_t biggerThan = *pBiggerThan;
                         for (const SComplexFace &face : pFaceList) {
                             for (size_t idx_vert = 0; idx_vert < face.Face.mNumIndices; idx_vert++) {
-                                if (face.Face.mIndices[idx_vert] > *pBiggerThan) {
+                                if (face.Face.mIndices[idx_vert] > biggerThan) {
                                     rv = face.Face.mIndices[idx_vert];
                                     found = true;
-
                                     break;
                                 }
                             }
 
-                            if (found) break;
+                            if (found) {
+                                break;
+                            }
                         }
 
-                        if (!found) return *pBiggerThan;
+                        if (!found) {
+                            return *pBiggerThan;
+                        }
                     } else {
                         rv = pFaceList.front().Face.mIndices[0];
                     } // if(pBiggerThan != nullptr) else
@@ -505,9 +521,9 @@ void AMFImporter::Postprocess_BuildMeshSet(const CAMFImporter_NodeElement_Mesh &
                 tmesh->mNumFaces = static_cast<unsigned int>(face_list_cur.size());
                 tmesh->mFaces = new aiFace[tmesh->mNumFaces];
 
-                // Create vertices list and optimize indices. Optimisation mean following.In AMF all volumes use one big list of vertices. And one volume
+                // Create vertices list and optimize indices. Optimization mean following.In AMF all volumes use one big list of vertices. And one volume
                 // can use only part of vertices list, for example: vertices list contain few thousands of vertices and volume use vertices 1, 3, 10.
-                // Do you need all this thousands of garbage? Of course no. So, optimisation step transformate sparse indices set to continuous.
+                // Do you need all this thousands of garbage? Of course no. So, optimization step transform sparse indices set to continuous.
                 size_t VertexCount_Max = tmesh->mNumFaces * 3; // 3 - triangles.
                 std::vector<aiVector3D> vert_arr, texcoord_arr;
                 std::vector<aiColor4D> col_arr;
@@ -566,7 +582,7 @@ void AMFImporter::Postprocess_BuildMeshSet(const CAMFImporter_NodeElement_Mesh &
                     size_t idx_vert_new = vert_arr.size();
                     ///TODO: clean unused vertices. "* 2": in certain cases - mesh full of triangle colors - vert_arr will contain duplicated vertices for
                     /// colored triangles and initial vertices (for colored vertices) which in real became unused. This part need more thinking about
-                    /// optimisation.
+                    /// optimization.
                     bool *idx_vert_used;
 
                     idx_vert_used = new bool[VertexCount_Max * 2];
@@ -639,15 +655,15 @@ void AMFImporter::Postprocess_BuildMeshSet(const CAMFImporter_NodeElement_Mesh &
     } // if(mesh_idx.size() > 0)
 }
 
-void AMFImporter::Postprocess_BuildMaterial(const CAMFImporter_NodeElement_Material &pMaterial) {
+void AMFImporter::Postprocess_BuildMaterial(const AMFMaterial &pMaterial) {
     SPP_Material new_mat;
 
     new_mat.ID = pMaterial.ID;
-    for (const CAMFImporter_NodeElement *mat_child : pMaterial.Child) {
-        if (mat_child->Type == CAMFImporter_NodeElement::ENET_Color) {
-            new_mat.Color = (CAMFImporter_NodeElement_Color *)mat_child;
-        } else if (mat_child->Type == CAMFImporter_NodeElement::ENET_Metadata) {
-            new_mat.Metadata.push_back((CAMFImporter_NodeElement_Metadata *)mat_child);
+    for (const AMFNodeElementBase *mat_child : pMaterial.Child) {
+        if (mat_child->Type == AMFNodeElementBase::ENET_Color) {
+            new_mat.Color = (AMFColor*)mat_child;
+        } else if (mat_child->Type == AMFNodeElementBase::ENET_Metadata) {
+            new_mat.Metadata.push_back((AMFMetadata *)mat_child);
         }
     } // for(const CAMFImporter_NodeElement* mat_child; pMaterial.Child)
 
@@ -655,7 +671,7 @@ void AMFImporter::Postprocess_BuildMaterial(const CAMFImporter_NodeElement_Mater
     mMaterial_Converted.push_back(new_mat);
 }
 
-void AMFImporter::Postprocess_BuildConstellation(CAMFImporter_NodeElement_Constellation &pConstellation, std::list<aiNode *> &pNodeList) const {
+void AMFImporter::Postprocess_BuildConstellation(AMFConstellation &pConstellation, NodeArray &nodeArray) const {
     aiNode *con_node;
     std::list<aiNode *> ch_node;
 
@@ -667,18 +683,18 @@ void AMFImporter::Postprocess_BuildConstellation(CAMFImporter_NodeElement_Conste
     con_node = new aiNode;
     con_node->mName = pConstellation.ID;
     // Walk through children and search for instances of another objects, constellations.
-    for (const CAMFImporter_NodeElement *ne : pConstellation.Child) {
+    for (const AMFNodeElementBase *ne : pConstellation.Child) {
         aiMatrix4x4 tmat;
         aiNode *t_node;
         aiNode *found_node;
 
-        if (ne->Type == CAMFImporter_NodeElement::ENET_Metadata) continue;
-        if (ne->Type != CAMFImporter_NodeElement::ENET_Instance) throw DeadlyImportError("Only <instance> nodes can be in <constellation>.");
+        if (ne->Type == AMFNodeElementBase::ENET_Metadata) continue;
+        if (ne->Type != AMFNodeElementBase::ENET_Instance) throw DeadlyImportError("Only <instance> nodes can be in <constellation>.");
 
-        // create alias for conveniance
-        CAMFImporter_NodeElement_Instance &als = *((CAMFImporter_NodeElement_Instance *)ne);
+        // create alias for convenience
+        AMFInstance &als = *((AMFInstance *)ne);
         // find referenced object
-        if (!Find_ConvertedNode(als.ObjectID, pNodeList, &found_node)) Throw_ID_NotFound(als.ObjectID);
+        if (!Find_ConvertedNode(als.ObjectID, nodeArray, &found_node)) Throw_ID_NotFound(als.ObjectID);
 
         // create node for applying transformation
         t_node = new aiNode;
@@ -707,13 +723,13 @@ void AMFImporter::Postprocess_BuildConstellation(CAMFImporter_NodeElement_Conste
         con_node->mChildren[ch_idx++] = node;
 
     // and place "root" of <constellation> node to node list
-    pNodeList.push_back(con_node);
+    nodeArray.push_back(con_node);
 }
 
 void AMFImporter::Postprocess_BuildScene(aiScene *pScene) {
-    std::list<aiNode *> node_list;
-    std::list<aiMesh *> mesh_list;
-    std::list<CAMFImporter_NodeElement_Metadata *> meta_list;
+    NodeArray nodeArray;
+    MeshArray mesh_list;
+    AMFMetaDataArray meta_list;
 
     //
     // Because for AMF "material" is just complex colors mixing so aiMaterial will not be used.
@@ -723,18 +739,21 @@ void AMFImporter::Postprocess_BuildScene(aiScene *pScene) {
     pScene->mRootNode->mParent = nullptr;
     pScene->mFlags |= AI_SCENE_FLAGS_ALLOW_SHARED;
     // search for root(<amf>) element
-    CAMFImporter_NodeElement *root_el = nullptr;
+    AMFNodeElementBase *root_el = nullptr;
 
-    for (CAMFImporter_NodeElement *ne : mNodeElement_List) {
-        if (ne->Type != CAMFImporter_NodeElement::ENET_Root) continue;
+    for (AMFNodeElementBase *ne : mNodeElement_List) {
+        if (ne->Type != AMFNodeElementBase::ENET_Root) {
+            continue;
+        }
 
         root_el = ne;
-
         break;
     } // for(const CAMFImporter_NodeElement* ne: mNodeElement_List)
 
     // Check if root element are found.
-    if (root_el == nullptr) throw DeadlyImportError("Root(<amf>) element not found.");
+    if (root_el == nullptr) {
+        throw DeadlyImportError("Root(<amf>) element not found.");
+    }
 
     // after that walk through children of root and collect data. Five types of nodes can be placed at top level - in <amf>: <object>, <material>, <texture>,
     // <constellation> and <metadata>. But at first we must read <material> and <texture> because they will be used in <object>. <metadata> can be read
@@ -742,34 +761,38 @@ void AMFImporter::Postprocess_BuildScene(aiScene *pScene) {
     //
     // 1. <material>
     // 2. <texture> will be converted later when processing triangles list. \sa Postprocess_BuildMeshSet
-    for (const CAMFImporter_NodeElement *root_child : root_el->Child) {
-        if (root_child->Type == CAMFImporter_NodeElement::ENET_Material) Postprocess_BuildMaterial(*((CAMFImporter_NodeElement_Material *)root_child));
+    for (const AMFNodeElementBase *root_child : root_el->Child) {
+        if (root_child->Type == AMFNodeElementBase::ENET_Material) {
+            Postprocess_BuildMaterial(*((AMFMaterial *)root_child));
+        }
     }
 
     // After "appearance" nodes we must read <object> because it will be used in <constellation> -> <instance>.
     //
     // 3. <object>
-    for (const CAMFImporter_NodeElement *root_child : root_el->Child) {
-        if (root_child->Type == CAMFImporter_NodeElement::ENET_Object) {
+    for (const AMFNodeElementBase *root_child : root_el->Child) {
+        if (root_child->Type == AMFNodeElementBase::ENET_Object) {
             aiNode *tnode = nullptr;
 
             // for <object> mesh and node must be built: object ID assigned to aiNode name and will be used in future for <instance>
-            Postprocess_BuildNodeAndObject(*((CAMFImporter_NodeElement_Object *)root_child), mesh_list, &tnode);
-            if (tnode != nullptr) node_list.push_back(tnode);
+            Postprocess_BuildNodeAndObject(*((AMFObject *)root_child), mesh_list, &tnode);
+            if (tnode != nullptr) {
+                nodeArray.push_back(tnode);
+            }
         }
     } // for(const CAMFImporter_NodeElement* root_child: root_el->Child)
 
     // And finally read rest of nodes.
     //
-    for (const CAMFImporter_NodeElement *root_child : root_el->Child) {
+    for (const AMFNodeElementBase *root_child : root_el->Child) {
         // 4. <constellation>
-        if (root_child->Type == CAMFImporter_NodeElement::ENET_Constellation) {
+        if (root_child->Type == AMFNodeElementBase::ENET_Constellation) {
             // <object> and <constellation> at top of self abstraction use aiNode. So we can use only aiNode list for creating new aiNode's.
-            Postprocess_BuildConstellation(*((CAMFImporter_NodeElement_Constellation *)root_child), node_list);
+            Postprocess_BuildConstellation(*((AMFConstellation *)root_child), nodeArray);
         }
 
         // 5, <metadata>
-        if (root_child->Type == CAMFImporter_NodeElement::ENET_Metadata) meta_list.push_back((CAMFImporter_NodeElement_Metadata *)root_child);
+        if (root_child->Type == AMFNodeElementBase::ENET_Metadata) meta_list.push_back((AMFMetadata *)root_child);
     } // for(const CAMFImporter_NodeElement* root_child: root_el->Child)
 
     // at now we can add collected metadata to root node
@@ -783,17 +806,18 @@ void AMFImporter::Postprocess_BuildScene(aiScene *pScene) {
     // And at this step we are checking that relations.
 nl_clean_loop:
 
-    if (node_list.size() > 1) {
+    if (nodeArray.size() > 1) {
         // walk through all nodes
-        for (std::list<aiNode *>::iterator nl_it = node_list.begin(); nl_it != node_list.end(); ++nl_it) {
+        for (NodeArray::iterator nl_it = nodeArray.begin(); nl_it != nodeArray.end(); ++nl_it) {
             // and try to find them in another top nodes.
-            std::list<aiNode *>::const_iterator next_it = nl_it;
+            NodeArray::const_iterator next_it = nl_it;
 
             ++next_it;
-            for (; next_it != node_list.end(); ++next_it) {
+            for (; next_it != nodeArray.end(); ++next_it) {
                 if ((*next_it)->FindNode((*nl_it)->mName) != nullptr) {
                     // if current top node(nl_it) found in another top node then erase it from node_list and restart search loop.
-                    node_list.erase(nl_it);
+                    // FIXME: this leaks memory on test models test8.amf and test9.amf
+                    nodeArray.erase(nl_it);
 
                     goto nl_clean_loop;
                 }
@@ -806,10 +830,10 @@ nl_clean_loop:
     //
     //
     // Nodes
-    if (!node_list.empty()) {
-        std::list<aiNode *>::const_iterator nl_it = node_list.begin();
+    if (!nodeArray.empty()) {
+        NodeArray::const_iterator nl_it = nodeArray.begin();
 
-        pScene->mRootNode->mNumChildren = static_cast<unsigned int>(node_list.size());
+        pScene->mRootNode->mNumChildren = static_cast<unsigned int>(nodeArray.size());
         pScene->mRootNode->mChildren = new aiNode *[pScene->mRootNode->mNumChildren];
         for (size_t i = 0; i < pScene->mRootNode->mNumChildren; i++) {
             // Objects and constellation that must be showed placed at top of hierarchy in <amf> node. So all aiNode's in node_list must have
@@ -822,7 +846,7 @@ nl_clean_loop:
     //
     // Meshes
     if (!mesh_list.empty()) {
-        std::list<aiMesh *>::const_iterator ml_it = mesh_list.begin();
+        MeshArray::const_iterator ml_it = mesh_list.begin();
 
         pScene->mNumMeshes = static_cast<unsigned int>(mesh_list.size());
         pScene->mMeshes = new aiMesh *[pScene->mNumMeshes];
@@ -844,7 +868,7 @@ nl_clean_loop:
             pScene->mTextures[idx]->mHeight = static_cast<unsigned int>(tex_convd.Height);
             pScene->mTextures[idx]->pcData = (aiTexel *)tex_convd.Data;
             // texture format description.
-            strcpy(pScene->mTextures[idx]->achFormatHint, tex_convd.FormatHint);
+            strncpy(pScene->mTextures[idx]->achFormatHint, tex_convd.FormatHint, HINTMAXTEXTURELEN);
             idx++;
         } // for(const SPP_Texture& tex_convd: mTexture_Converted)
 
@@ -853,7 +877,7 @@ nl_clean_loop:
         pScene->mNumMaterials = static_cast<unsigned int>(mTexture_Converted.size());
         pScene->mMaterials = new aiMaterial *[pScene->mNumMaterials];
         for (const SPP_Texture &tex_convd : mTexture_Converted) {
-            const aiString texture_id(AI_EMBEDDED_TEXNAME_PREFIX + to_string(idx));
+            const aiString texture_id(AI_EMBEDDED_TEXNAME_PREFIX + ai_to_string(idx));
             const int mode = aiTextureOp_Multiply;
             const int repeat = tex_convd.Tiled ? 1 : 0;
 

code/AssetLib/ASE/ASELoader.cpp

@@ -3,9 +3,7 @@
 Open Asset Import Library (assimp)
 ---------------------------------------------------------------------------
 
-Copyright (c) 2006-2020, assimp team
-
-
+Copyright (c) 2006-2024, assimp team
 
 All rights reserved.
 
@@ -46,7 +44,6 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef ASSIMP_BUILD_NO_ASE_IMPORTER
-
 #ifndef ASSIMP_BUILD_NO_3DS_IMPORTER
 
 // internal headers
@@ -66,10 +63,10 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 // utilities
 #include <assimp/fast_atof.h>
 
-using namespace Assimp;
+namespace Assimp {
 using namespace Assimp::ASE;
 
-static const aiImporterDesc desc = {
+static constexpr aiImporterDesc desc = {
     "ASE Importer",
     "",
     "",
@@ -89,27 +86,11 @@ ASEImporter::ASEImporter() :
     // empty
 }
 
-// ------------------------------------------------------------------------------------------------
-// Destructor, private as well
-ASEImporter::~ASEImporter() {
-    // empty
-}
-
 // ------------------------------------------------------------------------------------------------
 // Returns whether the class can handle the format of the given file.
-bool ASEImporter::CanRead(const std::string &pFile, IOSystem *pIOHandler, bool cs) const {
-    // check file extension
-    const std::string extension = GetExtension(pFile);
-
-    if (extension == "ase" || extension == "ask") {
-        return true;
-    }
-
-    if ((!extension.length() || cs) && pIOHandler) {
-        const char *tokens[] = { "*3dsmax_asciiexport" };
-        return SearchFileHeaderForToken(pIOHandler, pFile, tokens, 1);
-    }
-    return false;
+bool ASEImporter::CanRead(const std::string &pFile, IOSystem *pIOHandler, bool /*checkSig*/) const {
+    static const char *tokens[] = { "*3dsmax_asciiexport" };
+    return SearchFileHeaderForToken(pIOHandler, pFile, tokens, AI_COUNT_OF(tokens));
 }
 
 // ------------------------------------------------------------------------------------------------
@@ -136,14 +117,14 @@ void ASEImporter::InternReadFile(const std::string &pFile,
     std::unique_ptr<IOStream> file(pIOHandler->Open(pFile, "rb"));
 
     // Check whether we can read from the file
-    if (file.get() == nullptr) {
-        throw DeadlyImportError("Failed to open ASE file " + pFile + ".");
+    if (file == nullptr) {
+        throw DeadlyImportError("Failed to open ASE file ", pFile, ".");
     }
 
     // Allocate storage and copy the contents of the file to a memory buffer
     std::vector<char> mBuffer2;
     TextFileToBuffer(file.get(), mBuffer2);
-
+    const size_t fileSize = mBuffer2.size();
     this->mBuffer = &mBuffer2[0];
     this->pcScene = pScene;
 
@@ -165,7 +146,7 @@ void ASEImporter::InternReadFile(const std::string &pFile,
     };
 
     // Construct an ASE parser and parse the file
-    ASE::Parser parser(mBuffer, defaultFormat);
+    ASE::Parser parser(mBuffer, fileSize, defaultFormat);
     mParser = &parser;
     mParser->Parse();
 
@@ -277,7 +258,7 @@ void ASEImporter::GenerateDefaultMaterial() {
     }
     if (bHas || mParser->m_vMaterials.empty()) {
         // add a simple material without submaterials to the parser's list
-        mParser->m_vMaterials.push_back(ASE::Material(AI_DEFAULT_MATERIAL_NAME));
+        mParser->m_vMaterials.emplace_back(AI_DEFAULT_MATERIAL_NAME);
         ASE::Material &mat = mParser->m_vMaterials.back();
 
         mat.mDiffuse = aiColor3D(0.6f, 0.6f, 0.6f);
@@ -340,21 +321,6 @@ void ASEImporter::BuildAnimations(const std::vector<BaseNode *> &nodes) {
                 aiNodeAnim *nd = pcAnim->mChannels[iNum++] = new aiNodeAnim();
                 nd->mNodeName.Set(me->mName + ".Target");
 
-                // If there is no input position channel we will need
-                // to supply the default position from the node's
-                // local transformation matrix.
-                /*TargetAnimationHelper helper;
-                if (me->mAnim.akeyPositions.empty())
-                {
-                    aiMatrix4x4& mat = (*i)->mTransform;
-                    helper.SetFixedMainAnimationChannel(aiVector3D(
-                        mat.a4, mat.b4, mat.c4));
-                }
-                else helper.SetMainAnimationChannel (&me->mAnim.akeyPositions);
-                helper.SetTargetAnimationChannel (&me->mTargetAnim.akeyPositions);
-
-                helper.Process(&me->mTargetAnim.akeyPositions);*/
-
                 // Allocate the key array and fill it
                 nd->mNumPositionKeys = (unsigned int)me->mTargetAnim.akeyPositions.size();
                 nd->mPositionKeys = new aiVectorKey[nd->mNumPositionKeys];
@@ -480,10 +446,9 @@ void ASEImporter::BuildLights() {
 }
 
 // ------------------------------------------------------------------------------------------------
-void ASEImporter::AddNodes(const std::vector<BaseNode *> &nodes,
-        aiNode *pcParent, const char *szName) {
+void ASEImporter::AddNodes(const std::vector<BaseNode *> &nodes, aiNode *pcParent, const std::string &name) {
     aiMatrix4x4 m;
-    AddNodes(nodes, pcParent, szName, m);
+    AddNodes(nodes, pcParent, name, m);
 }
 
 // ------------------------------------------------------------------------------------------------
@@ -540,10 +505,9 @@ void ASEImporter::AddMeshes(const ASE::BaseNode *snode, aiNode *node) {
 
 // ------------------------------------------------------------------------------------------------
 // Add child nodes to a given parent node
-void ASEImporter::AddNodes(const std::vector<BaseNode *> &nodes,
-        aiNode *pcParent, const char *szName,
+void ASEImporter::AddNodes(const std::vector<BaseNode *> &nodes, aiNode *pcParent, const std::string &name,
         const aiMatrix4x4 &mat) {
-    const size_t len = szName ? ::strlen(szName) : 0;
+    const size_t len = name.size();
     ai_assert(4 <= AI_MAX_NUMBER_OF_COLOR_SETS);
 
     // Receives child nodes for the pcParent node
@@ -553,16 +517,18 @@ void ASEImporter::AddNodes(const std::vector<BaseNode *> &nodes,
     // which has *us* as parent.
     for (std::vector<BaseNode *>::const_iterator it = nodes.begin(), end = nodes.end(); it != end; ++it) {
         const BaseNode *snode = *it;
-        if (szName) {
-            if (len != snode->mParent.length() || ::strcmp(szName, snode->mParent.c_str()))
+        if (!name.empty()) {
+            if (len != snode->mParent.length() || name != snode->mParent.c_str()) {
                 continue;
-        } else if (snode->mParent.length())
+            }
+        } else if (snode->mParent.length()) {
             continue;
+        }
 
         (*it)->mProcessed = true;
 
         // Allocate a new node and add it to the output data structure
-        apcNodes.push_back(new aiNode());
+        apcNodes.push_back(new aiNode);
         aiNode *node = apcNodes.back();
 
         node->mName.Set((snode->mName.length() ? snode->mName.c_str() : "Unnamed_Node"));
@@ -575,7 +541,7 @@ void ASEImporter::AddNodes(const std::vector<BaseNode *> &nodes,
 
         // Add sub nodes - prevent stack overflow due to recursive parenting
         if (node->mName != node->mParent->mName && node->mName != node->mParent->mParent->mName) {
-            AddNodes(nodes, node, node->mName.data, snode->mTransform);
+            AddNodes(nodes, node, node->mName.C_Str(), snode->mTransform);
         }
 
         // Further processing depends on the type of the node
@@ -614,7 +580,7 @@ void ASEImporter::AddNodes(const std::vector<BaseNode *> &nodes,
             node->mNumChildren++;
 
             // What we did is so great, it is at least worth a debug message
-            ASSIMP_LOG_VERBOSE_DEBUG("ASE: Generating separate target node (" + snode->mName + ")");
+            ASSIMP_LOG_VERBOSE_DEBUG("ASE: Generating separate target node (", snode->mName, ")");
         }
     }
 
@@ -653,7 +619,8 @@ void ASEImporter::BuildNodes(std::vector<BaseNode *> &nodes) {
     }
 
     // add all nodes
-    AddNodes(nodes, ch, nullptr);
+    static const std::string none = "";
+    AddNodes(nodes, ch, none);
 
     // now iterate through al nodes and find those that have not yet
     // been added to the nodegraph (= their parent could not be recognized)
@@ -683,7 +650,7 @@ void ASEImporter::BuildNodes(std::vector<BaseNode *> &nodes) {
         }
     }
 
-    // Are there ane orphaned nodes?
+    // Are there any orphaned nodes?
     if (!aiList.empty()) {
         std::vector<aiNode *> apcNodes;
         apcNodes.reserve(aiList.size() + pcScene->mRootNode->mNumChildren);
@@ -882,6 +849,7 @@ void ASEImporter::ConvertMaterial(ASE::Material &mat) {
         unsigned int iWire = 1;
         mat.pcInstance->AddProperty<int>((int *)&iWire, 1, AI_MATKEY_ENABLE_WIREFRAME);
     }
+    // fallthrough
     case D3DS::Discreet3DS::Gouraud:
         eShading = aiShadingMode_Gouraud;
         break;
@@ -937,7 +905,7 @@ void ASEImporter::ConvertMeshes(ASE::Mesh &mesh, std::vector<aiMesh *> &avOutMes
         ASSIMP_LOG_WARN("Material index is out of range");
     }
 
-    // If the material the mesh is assigned to is consisting of submeshes, split it
+    // If the material the mesh is assigned to consists of submeshes, split it
     if (!mParser->m_vMaterials[mesh.iMaterialIndex].avSubMaterials.empty()) {
         std::vector<ASE::Material> vSubMaterials = mParser->m_vMaterials[mesh.iMaterialIndex].avSubMaterials;
 
@@ -1016,8 +984,8 @@ void ASEImporter::ConvertMeshes(ASE::Mesh &mesh, std::vector<aiMesh *> &avOutMes
                                             blubb != mesh.mBoneVertices[iIndex2].mBoneWeights.end(); ++blubb) {
 
                                         // NOTE: illegal cases have already been filtered out
-                                        avOutputBones[(*blubb).first].push_back(std::pair<unsigned int, float>(
-                                                iBase, (*blubb).second));
+                                        avOutputBones[(*blubb).first].emplace_back(
+                                                iBase, (*blubb).second);
                                     }
                                 }
                             }
@@ -1295,6 +1263,8 @@ bool ASEImporter::GenerateNormals(ASE::Mesh &mesh) {
     return false;
 }
 
+}
+
 #endif // ASSIMP_BUILD_NO_3DS_IMPORTER
 
 #endif // !! ASSIMP_BUILD_NO_BASE_IMPORTER

code/AssetLib/ASE/ASELoader.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2020, assimp team
+Copyright (c) 2006-2024, assimp team
 
 All rights reserved.
 
@@ -62,42 +62,37 @@ namespace Assimp {
 class ASEImporter : public BaseImporter {
 public:
     ASEImporter();
-    ~ASEImporter();
+    ~ASEImporter() override = default;
 
     // -------------------------------------------------------------------
     /** Returns whether the class can handle the format of the given file.
      * See BaseImporter::CanRead() for details.
      */
     bool CanRead( const std::string& pFile, IOSystem* pIOHandler,
-        bool checkSig) const;
+        bool checkSig) const override;
 
 protected:
-
     // -------------------------------------------------------------------
     /** Return importer meta information.
      * See #BaseImporter::GetInfo for the details
      */
-    const aiImporterDesc* GetInfo () const;
-
+    const aiImporterDesc* GetInfo () const override;
 
     // -------------------------------------------------------------------
     /** Imports the given file into the given scene structure.
     * See BaseImporter::InternReadFile() for details
     */
     void InternReadFile( const std::string& pFile, aiScene* pScene,
-        IOSystem* pIOHandler);
-
+        IOSystem* pIOHandler) override;
 
     // -------------------------------------------------------------------
     /** Called prior to ReadFile().
     * The function is a request to the importer to update its configuration
     * basing on the Importer's configuration property list.
     */
-    void SetupProperties(const Importer* pImp);
-
+    void SetupProperties(const Importer* pImp) override;
 
 private:
-
     // -------------------------------------------------------------------
     /** Generate normal vectors basing on smoothing groups
      * (in some cases the normal are already contained in the file)
@@ -106,7 +101,6 @@ private:
      */
     bool GenerateNormals(ASE::Mesh& mesh);
 
-
     // -------------------------------------------------------------------
     /** Create valid vertex/normal/UV/color/face lists.
      *  All elements are unique, faces have only one set of indices
@@ -115,51 +109,43 @@ private:
      */
     void BuildUniqueRepresentation(ASE::Mesh& mesh);
 
-
     /** Create one-material-per-mesh meshes ;-)
      * \param mesh Mesh to work with
      *  \param Receives the list of all created meshes
      */
     void ConvertMeshes(ASE::Mesh& mesh, std::vector<aiMesh*>& avOut);
 
-
     // -------------------------------------------------------------------
     /** Convert a material to a aiMaterial object
      * \param mat Input material
      */
     void ConvertMaterial(ASE::Material& mat);
 
-
     // -------------------------------------------------------------------
     /** Setup the final material indices for each mesh
      */
     void BuildMaterialIndices();
 
-
     // -------------------------------------------------------------------
     /** Build the node graph
      */
     void BuildNodes(std::vector<ASE::BaseNode*>& nodes);
 
-
     // -------------------------------------------------------------------
     /** Build output cameras
      */
     void BuildCameras();
 
-
     // -------------------------------------------------------------------
     /** Build output lights
      */
     void BuildLights();
 
-
     // -------------------------------------------------------------------
     /** Build output animations
      */
     void BuildAnimations(const std::vector<ASE::BaseNode*>& nodes);
 
-
     // -------------------------------------------------------------------
     /** Add sub nodes to a node
      *  \param pcParent parent node to be filled
@@ -167,13 +153,13 @@ private:
      *  \param matrix Current transform
      */
     void AddNodes(const std::vector<ASE::BaseNode*>& nodes,
-        aiNode* pcParent,const char* szName);
+        aiNode* pcParent, const std::string &name);
 
     void AddNodes(const std::vector<ASE::BaseNode*>& nodes,
-        aiNode* pcParent,const char* szName,
+        aiNode* pcParent, const std::string &name,
         const aiMatrix4x4& matrix);
 
-    void AddMeshes(const ASE::BaseNode* snode,aiNode* node);
+    void AddMeshes(const ASE::BaseNode* snode, aiNode* node);
 
     // -------------------------------------------------------------------
     /** Generate a default material and add it to the parser's list
@@ -183,7 +169,6 @@ private:
     void GenerateDefaultMaterial();
 
 protected:
-
     /** Parser instance */
     ASE::Parser* mParser;
 
@@ -203,5 +188,4 @@ protected:
 
 } // end of namespace Assimp
 
-
 #endif // AI_3DSIMPORTER_H_INC

code/AssetLib/ASE/ASEParser.h

@@ -2,8 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2020, assimp team
-
+Copyright (c) 2006-2024, assimp team
 
 All rights reserved.
 
@@ -95,8 +94,8 @@ struct Material : public D3DS::Material {
     Material(Material &&other) AI_NO_EXCEPT
             : D3DS::Material(std::move(other)),
               avSubMaterials(std::move(other.avSubMaterials)),
-              pcInstance(std::move(other.pcInstance)),
-              bNeed(std::move(other.bNeed)) {
+              pcInstance(other.pcInstance),
+              bNeed(other.bNeed) {
         other.pcInstance = nullptr;
     }
 
@@ -108,15 +107,15 @@ struct Material : public D3DS::Material {
         //D3DS::Material::operator=(std::move(other));
 
         avSubMaterials = std::move(other.avSubMaterials);
-        pcInstance = std::move(other.pcInstance);
-        bNeed = std::move(other.bNeed);
+        pcInstance = other.pcInstance;
+        bNeed = other.bNeed;
 
         other.pcInstance = nullptr;
 
         return *this;
     }
 
-    ~Material() {}
+    ~Material() = default;
 
     //! Contains all sub materials of this material
     std::vector<Material> avSubMaterials;
@@ -385,20 +384,18 @@ struct Dummy : public BaseNode {
 /** \brief Class to parse ASE files
  */
 class Parser {
-private:
-    Parser() AI_NO_EXCEPT {
-        // empty
-    }
-
 public:
+    /// @brief No default constructor.
+    Parser() = delete;
+
     // -------------------------------------------------------------------
     //! Construct a parser from a given input file which is
     //! guaranteed to be terminated with zero.
-    //! @param szFile Input file
+    //! @param file              The name of the input file.
     //! @param fileFormatDefault Assumed file format version. If the
     //!   file format is specified in the file the new value replaces
     //!   the default value.
-    Parser(const char *szFile, unsigned int fileFormatDefault);
+    Parser(const char *file, size_t fileLen, unsigned int fileFormatDefault);
 
     // -------------------------------------------------------------------
     //! Parses the file into the parsers internal representation
@@ -556,13 +553,15 @@ private:
     //! (also works for MESH_TVERT, MESH_CFACE, MESH_VERTCOL  ...)
     //! \param apOut Output buffer (3 floats)
     //! \param rIndexOut Output index
-    void ParseLV4MeshFloatTriple(ai_real *apOut, unsigned int &rIndexOut);
+    void ParseLV4MeshRealTriple(ai_real *apOut, unsigned int &rIndexOut);
+    void ParseLV4MeshFloatTriple(float *apOut, unsigned int &rIndexOut);
 
     // -------------------------------------------------------------------
     //! Parse a *MESH_VERT block in a file
     //! (also works for MESH_TVERT, MESH_CFACE, MESH_VERTCOL  ...)
     //! \param apOut Output buffer (3 floats)
-    void ParseLV4MeshFloatTriple(ai_real *apOut);
+    void ParseLV4MeshRealTriple(ai_real *apOut);
+    void ParseLV4MeshFloatTriple(float *apOut);
 
     // -------------------------------------------------------------------
     //! Parse a *MESH_TFACE block in a file
@@ -580,7 +579,8 @@ private:
     // -------------------------------------------------------------------
     //! Parse a single float element
     //! \param fOut Output float
-    void ParseLV4MeshFloat(ai_real &fOut);
+    void ParseLV4MeshReal(ai_real &fOut);
+    void ParseLV4MeshFloat(float &fOut);
 
     // -------------------------------------------------------------------
     //! Parse a single int element
@@ -620,8 +620,8 @@ private:
     bool ParseString(std::string &out, const char *szName);
 
 public:
-    //! Pointer to current data
-    const char *filePtr;
+    const char *mFilePtr; ////< Pointer to current data
+    const char *mEnd;     ///< The end pointer of the file data
 
     //! background color to be passed to the viewer
     //! QNAN if none was found

code/AssetLib/Assbin/AssbinExporter.cpp

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2020, assimp team
+Copyright (c) 2006-2024, assimp team
 
 All rights reserved.
 

code/AssetLib/Assbin/AssbinExporter.h

@@ -2,8 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2020, assimp team
-
+Copyright (c) 2006-2024, assimp team
 
 All rights reserved.
 
@@ -43,16 +42,19 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 /** @file AssbinExporter.h
  * ASSBIN Exporter Main Header
  */
+#pragma once
 #ifndef AI_ASSBINEXPORTER_H_INC
 #define AI_ASSBINEXPORTER_H_INC
 
 #include <assimp/defs.h>
 
+#ifndef ASSIMP_BUILD_NO_EXPORT
+
 // nothing really needed here - reserved for future use like properties
 namespace Assimp {
 
 void ASSIMP_API ExportSceneAssbin(const char* pFile, IOSystem* pIOSystem, const aiScene* pScene, const ExportProperties* /*pProperties*/);
 
 }
-
+#endif
 #endif // AI_ASSBINEXPORTER_H_INC

code/AssetLib/Assbin/AssbinFileWriter.cpp

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2020, assimp team
+Copyright (c) 2006-2024, assimp team
 
 All rights reserved.
 
@@ -43,27 +43,21 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "AssbinFileWriter.h"
-
 #include "Common/assbin_chunks.h"
 #include "PostProcessing/ProcessHelper.h"
 
 #include <assimp/Exceptional.h>
 #include <assimp/version.h>
-#include <assimp/Exporter.hpp>
 #include <assimp/IOStream.hpp>
 
-#ifdef ASSIMP_BUILD_NO_OWN_ZLIB
-#include <zlib.h>
-#else
-#include "../contrib/zlib/zlib.h"
-#endif
+#include "zlib.h"
 
-#include <time.h>
+#include <ctime>
 
-#ifdef _WIN32
+#if _MSC_VER
 #pragma warning(push)
 #pragma warning(disable : 4706)
-#endif // _WIN32
+#endif // _MSC_VER
 
 namespace Assimp {
 
@@ -132,7 +126,7 @@ inline size_t Write<double>(IOStream *stream, const double &f) {
 // Serialize a vec3
 template <>
 inline size_t Write<aiVector3D>(IOStream *stream, const aiVector3D &v) {
-    size_t t = Write<float>(stream, v.x);
+    size_t t = Write<ai_real>(stream, v.x);
     t += Write<float>(stream, v.y);
     t += Write<float>(stream, v.z);
 
@@ -143,7 +137,7 @@ inline size_t Write<aiVector3D>(IOStream *stream, const aiVector3D &v) {
 // Serialize a color value
 template <>
 inline size_t Write<aiColor3D>(IOStream *stream, const aiColor3D &v) {
-    size_t t = Write<float>(stream, v.r);
+    size_t t = Write<ai_real>(stream, v.r);
     t += Write<float>(stream, v.g);
     t += Write<float>(stream, v.b);
 
@@ -154,7 +148,7 @@ inline size_t Write<aiColor3D>(IOStream *stream, const aiColor3D &v) {
 // Serialize a color value
 template <>
 inline size_t Write<aiColor4D>(IOStream *stream, const aiColor4D &v) {
-    size_t t = Write<float>(stream, v.r);
+    size_t t = Write<ai_real>(stream, v.r);
     t += Write<float>(stream, v.g);
     t += Write<float>(stream, v.b);
     t += Write<float>(stream, v.a);
@@ -166,13 +160,13 @@ inline size_t Write<aiColor4D>(IOStream *stream, const aiColor4D &v) {
 // Serialize a quaternion
 template <>
 inline size_t Write<aiQuaternion>(IOStream *stream, const aiQuaternion &v) {
-    size_t t = Write<float>(stream, v.w);
+    size_t t = Write<ai_real>(stream, v.w);
     t += Write<float>(stream, v.x);
     t += Write<float>(stream, v.y);
     t += Write<float>(stream, v.z);
     ai_assert(t == 16);
 
-    return 16;
+    return t;
 }
 
 // -----------------------------------------------------------------------------------
@@ -184,17 +178,19 @@ inline size_t Write<aiVertexWeight>(IOStream *stream, const aiVertexWeight &v) {
     return t + Write<float>(stream, v.mWeight);
 }
 
+constexpr size_t MatrixSize = 64;
+
 // -----------------------------------------------------------------------------------
 // Serialize a mat4x4
 template <>
 inline size_t Write<aiMatrix4x4>(IOStream *stream, const aiMatrix4x4 &m) {
     for (unsigned int i = 0; i < 4; ++i) {
         for (unsigned int i2 = 0; i2 < 4; ++i2) {
-            Write<float>(stream, m[i][i2]);
+            Write<ai_real>(stream, m[i][i2]);
         }
     }
 
-    return 64;
+    return MatrixSize;
 }
 
 // -----------------------------------------------------------------------------------
@@ -277,7 +273,7 @@ public:
         // empty
     }
 
-    virtual ~AssbinChunkWriter() {
+    ~AssbinChunkWriter() override {
         if (container) {
             container->Write(&magic, sizeof(uint32_t), 1);
             container->Write(&cursor, sizeof(uint32_t), 1);
@@ -288,26 +284,27 @@ public:
 
     void *GetBufferPointer() { return buffer; }
 
-    // -------------------------------------------------------------------
-    virtual size_t Read(void * /*pvBuffer*/, size_t /*pSize*/, size_t /*pCount*/) {
+    size_t Read(void * /*pvBuffer*/, size_t /*pSize*/, size_t /*pCount*/) override {
         return 0;
     }
-    virtual aiReturn Seek(size_t /*pOffset*/, aiOrigin /*pOrigin*/) {
+
+    aiReturn Seek(size_t /*pOffset*/, aiOrigin /*pOrigin*/) override {
         return aiReturn_FAILURE;
     }
-    virtual size_t Tell() const {
+
+    size_t Tell() const override {
         return cursor;
     }
-    virtual void Flush() {
+
+    void Flush() override {
         // not implemented
     }
 
-    virtual size_t FileSize() const {
+    size_t FileSize() const override {
         return cursor;
     }
 
-    // -------------------------------------------------------------------
-    virtual size_t Write(const void *pvBuffer, size_t pSize, size_t pCount) {
+    size_t Write(const void *pvBuffer, size_t pSize, size_t pCount) override {
         pSize *= pCount;
         if (cursor + pSize > cur_size) {
             Grow(cursor + pSize);
@@ -641,6 +638,10 @@ protected:
         Write<aiString>(&chunk, l->mName);
         Write<unsigned int>(&chunk, l->mType);
 
+        Write<aiVector3D>(&chunk, l->mPosition);
+        Write<aiVector3D>(&chunk, l->mDirection);
+        Write<aiVector3D>(&chunk, l->mUp);
+
         if (l->mType != aiLightSource_DIRECTIONAL) {
             Write<float>(&chunk, l->mAttenuationConstant);
             Write<float>(&chunk, l->mAttenuationLinear);
@@ -825,8 +826,8 @@ void DumpSceneToAssbin(
     AssbinFileWriter fileWriter(shortened, compressed);
     fileWriter.WriteBinaryDump(pFile, cmd, pIOSystem, pScene);
 }
-#ifdef _WIN32
+#if _MSC_VER
 #pragma warning(pop)
-#endif // _WIN32
+#endif // _MSC_VER
 
 } // end of namespace Assimp

code/AssetLib/Assbin/AssbinFileWriter.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2020, assimp team
+Copyright (c) 2006-2024, assimp team
 
 All rights reserved.
 

code/AssetLib/Assbin/AssbinLoader.cpp

@@ -3,7 +3,7 @@
 Open Asset Import Library (assimp)
 ---------------------------------------------------------------------------
 
-Copyright (c) 2006-2020, assimp team
+Copyright (c) 2006-2024, assimp team
 
 All rights reserved.
 
@@ -65,7 +65,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 using namespace Assimp;
 
-static const aiImporterDesc desc = {
+static constexpr aiImporterDesc desc = {
     "Assimp Binary Importer",
     "Gargaj / Conspiracy",
     "",
@@ -406,7 +406,7 @@ void AssbinImporter::ReadBinaryMesh(IOStream *stream, aiMesh *mesh) {
             f.mIndices = new unsigned int[f.mNumIndices];
 
             for (unsigned int a = 0; a < f.mNumIndices; ++a) {
-                // Check if unsigned  short ( 16 bit  ) are big enought for the indices
+                // Check if unsigned  short ( 16 bit  ) are big enough for the indices
                 if (fitsIntoUI16(mesh->mNumVertices)) {
                     f.mIndices[a] = Read<uint16_t>(stream);
                 } else {
@@ -556,6 +556,10 @@ void AssbinImporter::ReadBinaryLight(IOStream *stream, aiLight *l) {
     l->mName = Read<aiString>(stream);
     l->mType = (aiLightSourceType)Read<unsigned int>(stream);
 
+    l->mPosition = Read<aiVector3D>(stream);
+    l->mDirection = Read<aiVector3D>(stream);
+    l->mUp = Read<aiVector3D>(stream);
+
     if (l->mType != aiLightSource_DIRECTIONAL) {
         l->mAttenuationConstant = Read<float>(stream);
         l->mAttenuationLinear = Read<float>(stream);
@@ -671,7 +675,7 @@ void AssbinImporter::ReadBinaryScene(IOStream *stream, aiScene *scene) {
 void AssbinImporter::InternReadFile(const std::string &pFile, aiScene *pScene, IOSystem *pIOHandler) {
     IOStream *stream = pIOHandler->Open(pFile, "rb");
     if (nullptr == stream) {
-        return;
+        throw DeadlyImportError("ASSBIN: Could not open ", pFile);
     }
 
     // signature

code/AssetLib/Assbin/AssbinLoader.h

@@ -3,8 +3,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2020, assimp team
-
+Copyright (c) 2006-2024, assimp team
 
 All rights reserved.
 
@@ -74,17 +73,11 @@ private:
     bool compressed;
 
 public:
-    virtual bool CanRead(
-        const std::string& pFile,
-        IOSystem* pIOHandler,
-        bool checkSig
-    ) const;
-    virtual const aiImporterDesc* GetInfo() const;
-    virtual void InternReadFile(
-    const std::string& pFile,
-        aiScene* pScene,
-        IOSystem* pIOHandler
-    );
+    bool CanRead(const std::string& pFile,
+        IOSystem* pIOHandler, bool checkSig) const override;
+    const aiImporterDesc* GetInfo() const override;
+    void InternReadFile(
+    const std::string& pFile,aiScene* pScene,IOSystem* pIOHandler) override;
     void ReadHeader();
     void ReadBinaryScene( IOStream * stream, aiScene* pScene );
     void ReadBinaryNode( IOStream * stream, aiNode** mRootNode, aiNode* parent );

code/AssetLib/Assjson/cencode.c

@@ -7,10 +7,12 @@ For details, see http://sourceforge.net/projects/libb64
 
 #include "cencode.h" // changed from <B64/cencode.h>
 
-const int CHARS_PER_LINE = 72;
+static const int CHARS_PER_LINE = 72;
 
+#ifdef _MSC_VER
 #pragma warning(push)
 #pragma warning(disable : 4244)
+#endif // _MSC_VER
 
 void base64_init_encodestate(base64_encodestate* state_in)
 {
@@ -33,9 +35,9 @@ int base64_encode_block(const char* plaintext_in, int length_in, char* code_out,
 	char* codechar = code_out;
 	char result;
 	char fragment;
-	
+
 	result = state_in->result;
-	
+
 	switch (state_in->step)
 	{
 		while (1)
@@ -74,7 +76,7 @@ int base64_encode_block(const char* plaintext_in, int length_in, char* code_out,
 			*codechar++ = base64_encode_value(result);
 			result  = (fragment & 0x03f) >> 0;
 			*codechar++ = base64_encode_value(result);
-			
+
 			++(state_in->stepcount);
 			if (state_in->stepcount == CHARS_PER_LINE/4)
 			{
@@ -90,7 +92,7 @@ int base64_encode_block(const char* plaintext_in, int length_in, char* code_out,
 int base64_encode_blockend(char* code_out, base64_encodestate* state_in)
 {
 	char* codechar = code_out;
-	
+
 	switch (state_in->step)
 	{
 	case step_B:
@@ -106,8 +108,10 @@ int base64_encode_blockend(char* code_out, base64_encodestate* state_in)
 		break;
 	}
 	*codechar++ = '\n';
-	
+
 	return (int)(codechar - code_out);
 }
 
+#ifdef _MSC_VER
 #pragma warning(pop)
+#endif // _MSC_VER

code/AssetLib/Assjson/cencode.h

@@ -8,9 +8,9 @@ For details, see http://sourceforge.net/projects/libb64
 #ifndef BASE64_CENCODE_H
 #define BASE64_CENCODE_H
 
-#ifdef _WIN32
+#ifdef _MSC_VER
 #pragma warning(disable : 4127 )
-#endif // _WIN32
+#endif // _MSC_VER
 
 typedef enum
 {

code/AssetLib/Assjson/json_exporter.cpp

@@ -10,6 +10,7 @@ Licensed under a 3-clause BSD license. See the LICENSE file for more information
 #ifndef ASSIMP_BUILD_NO_ASSJSON_EXPORTER
 
 #include <assimp/scene.h>
+#include <assimp/ai_assert.h>
 #include <assimp/Exporter.hpp>
 #include <assimp/IOStream.hpp>
 #include <assimp/IOSystem.hpp>
@@ -23,16 +24,15 @@ Licensed under a 3-clause BSD license. See the LICENSE file for more information
 
 #define CURRENT_FORMAT_VERSION 100
 
-// grab scoped_ptr from assimp to avoid a dependency on boost.
-//#include <assimp/../../code/BoostWorkaround/boost/scoped_ptr.hpp>
-
 #include "mesh_splitter.h"
 
 extern "C" {
-#include "cencode.h"
+#   include "cencode.h"
 }
+
 namespace Assimp {
 
+// Forward declarations
 void ExportAssimp2Json(const char *, Assimp::IOSystem *, const aiScene *, const Assimp::ExportProperties *);
 
 // small utility class to simplify serializing the aiScene to Json
@@ -41,12 +41,17 @@ public:
     enum {
         Flag_DoNotIndent = 0x1,
         Flag_WriteSpecialFloats = 0x2,
+        Flag_SkipWhitespaces = 0x4
     };
 
     JSONWriter(Assimp::IOStream &out, unsigned int flags = 0u) :
-            out(out), first(), flags(flags) {
+            out(out), indent (""), newline("\n"), space(" "), buff (), first(false), flags(flags) {
         // make sure that all formatting happens using the standard, C locale and not the user's current locale
         buff.imbue(std::locale("C"));
+        if (flags & Flag_SkipWhitespaces) {
+            newline = "";
+            space = "";
+        }
     }
 
     ~JSONWriter() {
@@ -70,7 +75,7 @@ public:
     void Key(const std::string &name) {
         AddIndentation();
         Delimit();
-        buff << '\"' + name + "\": ";
+        buff << '\"' + name + "\":" << space;
     }
 
     template <typename Literal>
@@ -78,12 +83,12 @@ public:
         AddIndentation();
         Delimit();
 
-        LiteralToString(buff, name) << '\n';
+        LiteralToString(buff, name) << newline;
     }
 
     template <typename Literal>
     void SimpleValue(const Literal &s) {
-        LiteralToString(buff, s) << '\n';
+        LiteralToString(buff, s) << newline;
     }
 
     void SimpleValue(const void *buffer, size_t len) {
@@ -102,7 +107,7 @@ public:
             }
         }
 
-        buff << '\"' << cur_out << "\"\n";
+        buff << '\"' << cur_out << "\"" << newline;
         delete[] cur_out;
     }
 
@@ -115,7 +120,7 @@ public:
             }
         }
         first = true;
-        buff << "{\n";
+        buff << "{" << newline;
         PushIndent();
     }
 
@@ -123,7 +128,7 @@ public:
         PopIndent();
         AddIndentation();
         first = false;
-        buff << "}\n";
+        buff << "}" << newline;
     }
 
     void StartArray(bool is_element = false) {
@@ -135,19 +140,19 @@ public:
             }
         }
         first = true;
-        buff << "[\n";
+        buff << "[" << newline;
         PushIndent();
     }
 
     void EndArray() {
         PopIndent();
         AddIndentation();
-        buff << "]\n";
+        buff << "]" << newline;
         first = false;
     }
 
     void AddIndentation() {
-        if (!(flags & Flag_DoNotIndent)) {
+        if (!(flags & Flag_DoNotIndent) && !(flags & Flag_SkipWhitespaces)) {
             buff << indent;
         }
     }
@@ -156,7 +161,7 @@ public:
         if (!first) {
             buff << ',';
         } else {
-            buff << ' ';
+            buff << space;
             first = false;
         }
     }
@@ -174,7 +179,6 @@ private:
         // escape backslashes and single quotes, both would render the JSON invalid if left as is
         t.reserve(s.length);
         for (size_t i = 0; i < s.length; ++i) {
-
             if (s.data[i] == '\\' || s.data[i] == '\'' || s.data[i] == '\"') {
                 t.push_back('\\');
             }
@@ -227,14 +231,16 @@ private:
 
 private:
     Assimp::IOStream &out;
-    std::string indent, newline;
+    std::string indent;
+    std::string newline;
+    std::string space;
     std::stringstream buff;
     bool first;
 
     unsigned int flags;
 };
 
-void Write(JSONWriter &out, const aiVector3D &ai, bool is_elem = true) {
+static void Write(JSONWriter &out, const aiVector3D &ai, bool is_elem = true) {
     out.StartArray(is_elem);
     out.Element(ai.x);
     out.Element(ai.y);
@@ -242,7 +248,7 @@ void Write(JSONWriter &out, const aiVector3D &ai, bool is_elem = true) {
     out.EndArray();
 }
 
-void Write(JSONWriter &out, const aiQuaternion &ai, bool is_elem = true) {
+static void Write(JSONWriter &out, const aiQuaternion &ai, bool is_elem = true) {
     out.StartArray(is_elem);
     out.Element(ai.w);
     out.Element(ai.x);
@@ -251,7 +257,7 @@ void Write(JSONWriter &out, const aiQuaternion &ai, bool is_elem = true) {
     out.EndArray();
 }
 
-void Write(JSONWriter &out, const aiColor3D &ai, bool is_elem = true) {
+static void Write(JSONWriter &out, const aiColor3D &ai, bool is_elem = true) {
     out.StartArray(is_elem);
     out.Element(ai.r);
     out.Element(ai.g);
@@ -259,7 +265,7 @@ void Write(JSONWriter &out, const aiColor3D &ai, bool is_elem = true) {
     out.EndArray();
 }
 
-void Write(JSONWriter &out, const aiMatrix4x4 &ai, bool is_elem = true) {
+static void Write(JSONWriter &out, const aiMatrix4x4 &ai, bool is_elem = true) {
     out.StartArray(is_elem);
     for (unsigned int x = 0; x < 4; ++x) {
         for (unsigned int y = 0; y < 4; ++y) {
@@ -269,7 +275,7 @@ void Write(JSONWriter &out, const aiMatrix4x4 &ai, bool is_elem = true) {
     out.EndArray();
 }
 
-void Write(JSONWriter &out, const aiBone &ai, bool is_elem = true) {
+static void Write(JSONWriter &out, const aiBone &ai, bool is_elem = true) {
     out.StartObj(is_elem);
 
     out.Key("name");
@@ -290,7 +296,7 @@ void Write(JSONWriter &out, const aiBone &ai, bool is_elem = true) {
     out.EndObj();
 }
 
-void Write(JSONWriter &out, const aiFace &ai, bool is_elem = true) {
+static void Write(JSONWriter &out, const aiFace &ai, bool is_elem = true) {
     out.StartArray(is_elem);
     for (unsigned int i = 0; i < ai.mNumIndices; ++i) {
         out.Element(ai.mIndices[i]);
@@ -298,7 +304,7 @@ void Write(JSONWriter &out, const aiFace &ai, bool is_elem = true) {
     out.EndArray();
 }
 
-void Write(JSONWriter &out, const aiMesh &ai, bool is_elem = true) {
+static void Write(JSONWriter &out, const aiMesh &ai, bool is_elem = true) {
     out.StartObj(is_elem);
 
     out.Key("name");
@@ -409,7 +415,7 @@ void Write(JSONWriter &out, const aiMesh &ai, bool is_elem = true) {
     out.EndObj();
 }
 
-void Write(JSONWriter &out, const aiNode &ai, bool is_elem = true) {
+static void Write(JSONWriter &out, const aiNode &ai, bool is_elem = true) {
     out.StartObj(is_elem);
 
     out.Key("name");
@@ -439,7 +445,7 @@ void Write(JSONWriter &out, const aiNode &ai, bool is_elem = true) {
     out.EndObj();
 }
 
-void Write(JSONWriter &out, const aiMaterial &ai, bool is_elem = true) {
+static void Write(JSONWriter &out, const aiMaterial &ai, bool is_elem = true) {
     out.StartObj(is_elem);
 
     out.Key("properties");
@@ -459,41 +465,55 @@ void Write(JSONWriter &out, const aiMaterial &ai, bool is_elem = true) {
 
         out.Key("value");
         switch (prop->mType) {
-        case aiPTI_Float:
-            if (prop->mDataLength / sizeof(float) > 1) {
-                out.StartArray();
-                for (unsigned int ii = 0; ii < prop->mDataLength / sizeof(float); ++ii) {
-                    out.Element(reinterpret_cast<float *>(prop->mData)[ii]);
+            case aiPTI_Float:
+                if (prop->mDataLength / sizeof(float) > 1) {
+                    out.StartArray();
+                    for (unsigned int ii = 0; ii < prop->mDataLength / sizeof(float); ++ii) {
+                        out.Element(reinterpret_cast<float *>(prop->mData)[ii]);
+                    }
+                    out.EndArray();
+                } else {
+                    out.SimpleValue(*reinterpret_cast<float *>(prop->mData));
                 }
-                out.EndArray();
-            } else {
-                out.SimpleValue(*reinterpret_cast<float *>(prop->mData));
-            }
-            break;
-
-        case aiPTI_Integer:
-            if (prop->mDataLength / sizeof(int) > 1) {
-                out.StartArray();
-                for (unsigned int ii = 0; ii < prop->mDataLength / sizeof(int); ++ii) {
-                    out.Element(reinterpret_cast<int *>(prop->mData)[ii]);
+                break;
+            case aiPTI_Double:
+                if (prop->mDataLength / sizeof(double) > 1) {
+                    out.StartArray();
+                    for (unsigned int ii = 0; ii < prop->mDataLength / sizeof(double); ++ii) {
+                        out.Element(reinterpret_cast<double*>(prop->mData)[ii]);
+                    }
+                    out.EndArray();
+                } else {
+                    out.SimpleValue(*reinterpret_cast<double*>(prop->mData));
                 }
-                out.EndArray();
-            } else {
-                out.SimpleValue(*reinterpret_cast<int *>(prop->mData));
-            }
-            break;
+                break;
+            case aiPTI_Integer:
+                if (prop->mDataLength / sizeof(int) > 1) {
+                    out.StartArray();
+                    for (unsigned int ii = 0; ii < prop->mDataLength / sizeof(int); ++ii) {
+                        out.Element(reinterpret_cast<int *>(prop->mData)[ii]);
+                    }
+                    out.EndArray();
+                } else {
+                    out.SimpleValue(*reinterpret_cast<int *>(prop->mData));
+                }
+                break;
 
-        case aiPTI_String: {
-            aiString s;
-            aiGetMaterialString(&ai, prop->mKey.data, prop->mSemantic, prop->mIndex, &s);
-            out.SimpleValue(s);
-        } break;
-        case aiPTI_Buffer: {
-            // binary data is written as series of hex-encoded octets
-            out.SimpleValue(prop->mData, prop->mDataLength);
-        } break;
-        default:
-            assert(false);
+            case aiPTI_String:
+                {
+                    aiString s;
+                    aiGetMaterialString(&ai, prop->mKey.data, prop->mSemantic, prop->mIndex, &s);
+                    out.SimpleValue(s);
+                }
+                break;
+            case aiPTI_Buffer:
+                {
+                    // binary data is written as series of hex-encoded octets
+                    out.SimpleValue(prop->mData, prop->mDataLength);
+                }
+                break;
+            default:
+                ai_assert(false);
         }
 
         out.EndObj();
@@ -503,7 +523,7 @@ void Write(JSONWriter &out, const aiMaterial &ai, bool is_elem = true) {
     out.EndObj();
 }
 
-void Write(JSONWriter &out, const aiTexture &ai, bool is_elem = true) {
+static void Write(JSONWriter &out, const aiTexture &ai, bool is_elem = true) {
     out.StartObj(is_elem);
 
     out.Key("width");
@@ -539,7 +559,7 @@ void Write(JSONWriter &out, const aiTexture &ai, bool is_elem = true) {
     out.EndObj();
 }
 
-void Write(JSONWriter &out, const aiLight &ai, bool is_elem = true) {
+static void Write(JSONWriter &out, const aiLight &ai, bool is_elem = true) {
     out.StartObj(is_elem);
 
     out.Key("name");
@@ -587,7 +607,7 @@ void Write(JSONWriter &out, const aiLight &ai, bool is_elem = true) {
     out.EndObj();
 }
 
-void Write(JSONWriter &out, const aiNodeAnim &ai, bool is_elem = true) {
+static void Write(JSONWriter &out, const aiNodeAnim &ai, bool is_elem = true) {
     out.StartObj(is_elem);
 
     out.Key("name");
@@ -640,7 +660,7 @@ void Write(JSONWriter &out, const aiNodeAnim &ai, bool is_elem = true) {
     out.EndObj();
 }
 
-void Write(JSONWriter &out, const aiAnimation &ai, bool is_elem = true) {
+static void Write(JSONWriter &out, const aiAnimation &ai, bool is_elem = true) {
     out.StartObj(is_elem);
 
     out.Key("name");
@@ -661,7 +681,7 @@ void Write(JSONWriter &out, const aiAnimation &ai, bool is_elem = true) {
     out.EndObj();
 }
 
-void Write(JSONWriter &out, const aiCamera &ai, bool is_elem = true) {
+static void Write(JSONWriter &out, const aiCamera &ai, bool is_elem = true) {
     out.StartObj(is_elem);
 
     out.Key("name");
@@ -688,7 +708,7 @@ void Write(JSONWriter &out, const aiCamera &ai, bool is_elem = true) {
     out.EndObj();
 }
 
-void WriteFormatInfo(JSONWriter &out) {
+static void WriteFormatInfo(JSONWriter &out) {
     out.StartObj();
     out.Key("format");
     out.SimpleValue("\"assimp2json\"");
@@ -697,7 +717,7 @@ void WriteFormatInfo(JSONWriter &out) {
     out.EndObj();
 }
 
-void Write(JSONWriter &out, const aiScene &ai) {
+static void Write(JSONWriter &out, const aiScene &ai) {
     out.StartObj();
 
     out.Key("__metadata__");
@@ -765,7 +785,7 @@ void Write(JSONWriter &out, const aiScene &ai) {
     out.EndObj();
 }
 
-void ExportAssimp2Json(const char *file, Assimp::IOSystem *io, const aiScene *scene, const Assimp::ExportProperties *) {
+void ExportAssimp2Json(const char *file, Assimp::IOSystem *io, const aiScene *scene, const Assimp::ExportProperties *pProperties) {
     std::unique_ptr<Assimp::IOStream> str(io->Open(file, "wt"));
     if (!str) {
         throw DeadlyExportError("could not open output file");
@@ -782,7 +802,12 @@ void ExportAssimp2Json(const char *file, Assimp::IOSystem *io, const aiScene *sc
         splitter.Execute(scenecopy_tmp);
 
         // XXX Flag_WriteSpecialFloats is turned on by default, right now we don't have a configuration interface for exporters
-        JSONWriter s(*str, JSONWriter::Flag_WriteSpecialFloats);
+
+        unsigned int flags = JSONWriter::Flag_WriteSpecialFloats;
+        if (pProperties->GetPropertyBool("JSON_SKIP_WHITESPACES", false)) {
+            flags |= JSONWriter::Flag_SkipWhitespaces;
+        }
+        JSONWriter s(*str, flags);
         Write(s, *scenecopy_tmp);
 
     } catch (...) {

code/AssetLib/Assjson/mesh_splitter.cpp

@@ -69,13 +69,12 @@ void MeshSplitter::UpdateNode(aiNode* pcNode, const std::vector<std::pair<aiMesh
 	for (unsigned int i = 0, end = pcNode->mNumChildren; i < end;++i)	{
 		UpdateNode ( pcNode->mChildren[i], source_mesh_map );
 	}
-	return;
 }
 
-#define WAS_NOT_COPIED 0xffffffff
+static const unsigned int WAS_NOT_COPIED = 0xffffffff;
 
-typedef std::pair <unsigned int,float> PerVertexWeight;
-typedef std::vector	<PerVertexWeight> VertexWeightTable;
+using PerVertexWeight = std::pair <unsigned int,float>;
+using VertexWeightTable = std::vector	<PerVertexWeight>;
 
 // ------------------------------------------------------------------------------------------------
 VertexWeightTable* ComputeVertexBoneWeightTable(const aiMesh* pMesh) {
@@ -89,7 +88,7 @@ VertexWeightTable* ComputeVertexBoneWeightTable(const aiMesh* pMesh) {
 		aiBone* bone = pMesh->mBones[i];
 		for (unsigned int a = 0; a < bone->mNumWeights;++a)	{
 			const aiVertexWeight& weight = bone->mWeights[a];
-			avPerVertexWeights[weight.mVertexId].push_back( std::make_pair(i,weight.mWeight) );
+			avPerVertexWeights[weight.mVertexId].emplace_back(i,weight.mWeight);
 		}
 	}
 	return avPerVertexWeights;
@@ -100,7 +99,7 @@ void MeshSplitter :: SplitMesh(unsigned int a, aiMesh* in_mesh, std::vector<std:
 	// TODO: should better use std::(multi)set for source_mesh_map.
 
 	if (in_mesh->mNumVertices <= LIMIT)	{
-		source_mesh_map.push_back(std::make_pair(in_mesh,a));
+		source_mesh_map.emplace_back(in_mesh,a);
 		return;
 	}
 
@@ -110,7 +109,7 @@ void MeshSplitter :: SplitMesh(unsigned int a, aiMesh* in_mesh, std::vector<std:
 	// we need to split this mesh into sub meshes. Estimate submesh size
 	const unsigned int sub_meshes = (in_mesh->mNumVertices / LIMIT) + 1;
 
-	// create a std::vector<unsigned int> to remember which vertices have already 
+	// create a std::vector<unsigned int> to remember which vertices have already
 	// been copied and to which position (i.e. output index)
 	std::vector<unsigned int> was_copied_to;
 	was_copied_to.resize(in_mesh->mNumVertices,WAS_NOT_COPIED);
@@ -125,7 +124,7 @@ void MeshSplitter :: SplitMesh(unsigned int a, aiMesh* in_mesh, std::vector<std:
 	while (true) {
 		const unsigned int out_vertex_index = LIMIT;
 
-		aiMesh* out_mesh = new aiMesh();			
+		aiMesh* out_mesh = new aiMesh();
 		out_mesh->mNumVertices = 0;
 		out_mesh->mMaterialIndex = in_mesh->mMaterialIndex;
 
@@ -179,7 +178,7 @@ void MeshSplitter :: SplitMesh(unsigned int a, aiMesh* in_mesh, std::vector<std:
 
 				// check whether we do already have this vertex
 				if (WAS_NOT_COPIED == was_copied_to[index])	{
-					iNeed++; 
+					iNeed++;
 				}
 			}
 			if (out_mesh->mNumVertices + iNeed > out_vertex_index)	{
@@ -187,7 +186,7 @@ void MeshSplitter :: SplitMesh(unsigned int a, aiMesh* in_mesh, std::vector<std:
 				break;
 			}
 
-			vFaces.push_back(aiFace());
+			vFaces.emplace_back();
 			aiFace& rFace = vFaces.back();
 
 			// setup face type and number of indices
@@ -240,7 +239,7 @@ void MeshSplitter :: SplitMesh(unsigned int a, aiMesh* in_mesh, std::vector<std:
 						out_mesh->mTextureCoords[c][out_mesh->mNumVertices] = in_mesh->mTextureCoords[c][index];
 					}
 				}
-				// vertex colors 
+				// vertex colors
 				for (unsigned int c = 0;  c < AI_MAX_NUMBER_OF_COLOR_SETS;++c) {
 					if (in_mesh->HasVertexColors( c)) {
 						out_mesh->mColors[c][out_mesh->mNumVertices] = in_mesh->mColors[c][index];
@@ -305,7 +304,7 @@ void MeshSplitter :: SplitMesh(unsigned int a, aiMesh* in_mesh, std::vector<std:
 		}
 
 		// add the newly created mesh to the list
-		source_mesh_map.push_back(std::make_pair(out_mesh,a));
+		source_mesh_map.emplace_back(out_mesh,a);
 
 		if (base == in_mesh->mNumFaces) {
 			break;

code/AssetLib/Assjson/mesh_splitter.h

@@ -22,40 +22,31 @@ struct aiNode;
 
 // ---------------------------------------------------------------------------
 /** Splits meshes of unique vertices into meshes with no more vertices than
- *  a given, configurable threshold value. 
+ *  a given, configurable threshold value.
  */
-class MeshSplitter 
-{
-
+class MeshSplitter {
 public:
-	
-	void SetLimit(unsigned int l) {
-		LIMIT = l;
-	}
+    unsigned int LIMIT;
 
-	unsigned int GetLimit() const {
-		return LIMIT;
-	}
+    void SetLimit(unsigned int l) {
+        LIMIT = l;
+    }
 
-public:
+    unsigned int GetLimit() const {
+        return LIMIT;
+    }
 
-	// -------------------------------------------------------------------
-	/** Executes the post processing step on the given imported data.
+    // -------------------------------------------------------------------
+    /** Executes the post processing step on the given imported data.
 	 * At the moment a process is not supposed to fail.
 	 * @param pScene The imported data to work at.
 	 */
-	void Execute( aiScene* pScene);
-
+    void Execute(aiScene *pScene);
 
 private:
+    void UpdateNode(aiNode *pcNode, const std::vector<std::pair<aiMesh *, unsigned int>> &source_mesh_map);
+    void SplitMesh(unsigned int index, aiMesh *mesh, std::vector<std::pair<aiMesh *, unsigned int>> &source_mesh_map);
 
-	void UpdateNode(aiNode* pcNode, const std::vector<std::pair<aiMesh*, unsigned int> >& source_mesh_map);
-	void SplitMesh (unsigned int index, aiMesh* mesh, std::vector<std::pair<aiMesh*, unsigned int> >& source_mesh_map);
-
-public:
-
-	unsigned int LIMIT;
 };
 
 #endif // INCLUDED_MESH_SPLITTER
-

code/AssetLib/Assxml/AssxmlExporter.cpp

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2020, assimp team
+Copyright (c) 2006-2024, assimp team
 
 
 All rights reserved.
@@ -50,7 +50,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include <assimp/IOSystem.hpp>
 #include <assimp/Exporter.hpp>
 
-namespace Assimp   { 
+namespace Assimp   {
 
 void ExportSceneAssxml(const char* pFile, IOSystem* pIOSystem, const aiScene* pScene, const ExportProperties* /*pProperties*/)
 {

code/AssetLib/Assxml/AssxmlExporter.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2020, assimp team
+Copyright (c) 2006-2024, assimp team
 
 
 All rights reserved.
@@ -43,6 +43,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 /** @file AssxmlExporter.h
  * ASSXML Exporter Main Header
  */
+#pragma once
 #ifndef AI_ASSXMLEXPORTER_H_INC
 #define AI_ASSXMLEXPORTER_H_INC
 

code/AssetLib/Assxml/AssxmlFileWriter.cpp

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2020, assimp team
+Copyright (c) 2006-2024, assimp team
 
 
 All rights reserved.
@@ -168,7 +168,7 @@ static void WriteNode(const aiNode *node, IOStream *io, unsigned int depth) {
 }
 
 // -----------------------------------------------------------------------------------
-// Some chuncks of text will need to be encoded for XML
+// Some chunks of text will need to be encoded for XML
 // http://stackoverflow.com/questions/5665231/most-efficient-way-to-escape-xml-html-in-c-string#5665377
 static std::string encodeXML(const std::string &data) {
     std::string buffer;
@@ -365,7 +365,7 @@ static void WriteDump(const char *pFile, const char *cmd, const aiScene *scene,
 
                 ioprintf(io, "\t\t\t<MatProperty key=\"%s\" \n\t\t\ttype=\"%s\" tex_usage=\"%s\" tex_index=\"%u\"",
                         prop->mKey.data, sz,
-                        ::TextureTypeToString((aiTextureType)prop->mSemantic), prop->mIndex);
+                        ::aiTextureTypeToString((aiTextureType)prop->mSemantic), prop->mIndex);
 
                 if (prop->mType == aiPTI_Float) {
                     ioprintf(io, " size=\"%i\">\n\t\t\t\t",
@@ -598,8 +598,11 @@ static void WriteDump(const char *pFile, const char *cmd, const aiScene *scene,
                 if (!mesh->mTextureCoords[a])
                     break;
 
-                ioprintf(io, "\t\t<TextureCoords num=\"%u\" set=\"%u\" num_components=\"%u\"> \n", mesh->mNumVertices,
-                        a, mesh->mNumUVComponents[a]);
+                ioprintf(io, "\t\t<TextureCoords num=\"%u\" set=\"%u\" name=\"%s\" num_components=\"%u\"> \n",
+                         mesh->mNumVertices,
+                         a,
+                         (mesh->HasTextureCoordsName(a) ? mesh->GetTextureCoordsName(a)->C_Str() : ""),
+                         mesh->mNumUVComponents[a]);
 
                 if (!shortened) {
                     if (mesh->mNumUVComponents[a] == 3) {
@@ -649,7 +652,7 @@ void DumpSceneToAssxml(
         const char *pFile, const char *cmd, IOSystem *pIOSystem,
         const aiScene *pScene, bool shortened) {
     std::unique_ptr<IOStream> file(pIOSystem->Open(pFile, "wt"));
-    if (!file.get()) {
+    if (!file) {
         throw std::runtime_error("Unable to open output file " + std::string(pFile) + '\n');
     }
 

code/AssetLib/Assxml/AssxmlFileWriter.h

@@ -2,8 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2020, assimp team
-
+Copyright (c) 2006-2024, assimp team
 
 All rights reserved.
 
@@ -43,7 +42,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 /** @file AssxmlFileWriter.h
  *  @brief Declaration of Assxml file writer.
  */
-
+#pragma once
 #ifndef AI_ASSXMLFILEWRITER_H_INC
 #define AI_ASSXMLFILEWRITER_H_INC
 

code/AssetLib/B3D/B3DImporter.cpp

@@ -3,7 +3,7 @@
 Open Asset Import Library (assimp)
 ---------------------------------------------------------------------------
 
-Copyright (c) 2006-2020, assimp team
+Copyright (c) 2006-2024, assimp team
 
 All rights reserved.
 
@@ -59,10 +59,10 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 #include <memory>
 
-using namespace Assimp;
+namespace Assimp {
 using namespace std;
 
-static const aiImporterDesc desc = {
+static constexpr aiImporterDesc desc = {
     "BlitzBasic 3D Importer",
     "",
     "",
@@ -79,7 +79,7 @@ static const aiImporterDesc desc = {
 #pragma warning(disable : 4018)
 #endif
 
-//#define DEBUG_B3D
+// #define DEBUG_B3D
 
 template <typename T>
 void DeleteAllBarePointers(std::vector<T> &x) {
@@ -88,12 +88,10 @@ void DeleteAllBarePointers(std::vector<T> &x) {
     }
 }
 
-B3DImporter::~B3DImporter() {
-}
+B3DImporter::~B3DImporter() = default;
 
 // ------------------------------------------------------------------------------------------------
 bool B3DImporter::CanRead(const std::string &pFile, IOSystem * /*pIOHandler*/, bool /*checkSig*/) const {
-
     size_t pos = pFile.find_last_of('.');
     if (pos == string::npos) {
         return false;
@@ -118,8 +116,8 @@ void B3DImporter::InternReadFile(const std::string &pFile, aiScene *pScene, IOSy
     std::unique_ptr<IOStream> file(pIOHandler->Open(pFile));
 
     // Check whether we can read from the file
-    if (file.get() == nullptr) {
-        throw DeadlyImportError("Failed to open B3D file " + pFile + ".");
+    if (file == nullptr) {
+        throw DeadlyImportError("Failed to open B3D file ", pFile, ".");
     }
 
     // check whether the .b3d file is large enough to contain
@@ -143,16 +141,16 @@ AI_WONT_RETURN void B3DImporter::Oops() {
 }
 
 // ------------------------------------------------------------------------------------------------
-AI_WONT_RETURN void B3DImporter::Fail(string str) {
+AI_WONT_RETURN void B3DImporter::Fail(const string &str) {
 #ifdef DEBUG_B3D
-    ASSIMP_LOG_ERROR_F("Error in B3D file data: ", str);
+    ASSIMP_LOG_ERROR("Error in B3D file data: ", str);
 #endif
-    throw DeadlyImportError("B3D Importer - error in B3D file data: " + str);
+    throw DeadlyImportError("B3D Importer - error in B3D file data: ", str);
 }
 
 // ------------------------------------------------------------------------------------------------
 int B3DImporter::ReadByte() {
-    if (_pos > _buf.size()) {
+    if (_pos >= _buf.size()) {
         Fail("EOF");
     }
 
@@ -233,7 +231,7 @@ string B3DImporter::ReadChunk() {
         tag += char(ReadByte());
     }
 #ifdef DEBUG_B3D
-    ASSIMP_LOG_DEBUG_F("ReadChunk: ", tag);
+    ASSIMP_LOG_DEBUG("ReadChunk: ", tag);
 #endif
     unsigned sz = (unsigned)ReadInt();
     _stack.push_back(_pos + sz);
@@ -255,7 +253,7 @@ size_t B3DImporter::ChunkSize() {
 template <class T>
 T *B3DImporter::to_array(const vector<T> &v) {
     if (v.empty()) {
-        return 0;
+        return nullptr;
     }
     T *p = new T[v.size()];
     for (size_t i = 0; i < v.size(); ++i) {
@@ -268,7 +266,7 @@ T *B3DImporter::to_array(const vector<T> &v) {
 template <class T>
 T **unique_to_array(vector<std::unique_ptr<T>> &v) {
     if (v.empty()) {
-        return 0;
+        return nullptr;
     }
     T **p = new T *[v.size()];
     for (size_t i = 0; i < v.size(); ++i) {
@@ -331,7 +329,7 @@ void B3DImporter::ReadBRUS() {
             mat->AddProperty(&i, 1, AI_MATKEY_TWOSIDED);
         }
 
-        //Textures
+        // Textures
         for (int i = 0; i < n_texs; ++i) {
             int texid = ReadInt();
             if (texid < -1 || (texid >= 0 && texid >= static_cast<int>(_textures.size()))) {
@@ -374,7 +372,7 @@ void B3DImporter::ReadVRTS() {
         }
 
         if (_vflags & 2) {
-            ReadQuat(); //skip v 4bytes...
+            ReadQuat(); // skip v 4bytes...
         }
 
         for (int j = 0; j < _tcsets; ++j) {
@@ -397,7 +395,7 @@ void B3DImporter::ReadTRIS(int v0) {
         matid = 0;
     } else if (matid < 0 || matid >= (int)_materials.size()) {
 #ifdef DEBUG_B3D
-        ASSIMP_LOG_ERROR_F("material id=", matid);
+        ASSIMP_LOG_ERROR("material id=", matid);
 #endif
         Fail("Bad material id");
     }
@@ -417,10 +415,9 @@ void B3DImporter::ReadTRIS(int v0) {
         int i2 = ReadInt() + v0;
         if (i0 < 0 || i0 >= (int)_vertices.size() || i1 < 0 || i1 >= (int)_vertices.size() || i2 < 0 || i2 >= (int)_vertices.size()) {
 #ifdef DEBUG_B3D
-            ASSIMP_LOG_ERROR_F("Bad triangle index: i0=", i0, ", i1=", i1, ", i2=", i2);
+            ASSIMP_LOG_ERROR("Bad triangle index: i0=", i0, ", i1=", i1, ", i2=", i2);
 #endif
             Fail("Bad triangle index");
-            continue;
         }
         face->mNumIndices = 3;
         face->mIndices = new unsigned[3];
@@ -479,13 +476,13 @@ void B3DImporter::ReadKEYS(aiNodeAnim *nodeAnim) {
     while (ChunkSize()) {
         int frame = ReadInt();
         if (flags & 1) {
-            trans.push_back(aiVectorKey(frame, ReadVec3()));
+            trans.emplace_back(frame, ReadVec3());
         }
         if (flags & 2) {
-            scale.push_back(aiVectorKey(frame, ReadVec3()));
+            scale.emplace_back(frame, ReadVec3());
         }
         if (flags & 4) {
-            rot.push_back(aiQuatKey(frame, ReadQuat()));
+            rot.emplace_back(frame, ReadQuat());
         }
     }
 
@@ -619,7 +616,7 @@ void B3DImporter::ReadBB3D(aiScene *scene) {
             } else if (chunk == "BRUS") {
                 ReadBRUS();
             } else if (chunk == "NODE") {
-                ReadNODE(0);
+                ReadNODE(nullptr);
             }
             ExitChunk();
         }
@@ -644,7 +641,7 @@ void B3DImporter::ReadBB3D(aiScene *scene) {
             int n_tris = mesh->mNumFaces;
             int n_verts = mesh->mNumVertices = n_tris * 3;
 
-            aiVector3D *mv = mesh->mVertices = new aiVector3D[n_verts], *mn = 0, *mc = 0;
+            aiVector3D *mv = mesh->mVertices = new aiVector3D[n_verts], *mn = nullptr, *mc = nullptr;
             if (_vflags & 1) {
                 mn = mesh->mNormals = new aiVector3D[n_verts];
             }
@@ -673,7 +670,7 @@ void B3DImporter::ReadBB3D(aiScene *scene) {
                         int bone = v.bones[k];
                         float weight = v.weights[k];
 
-                        vweights[bone].push_back(aiVertexWeight(vertIdx + faceIndex, weight));
+                        vweights[bone].emplace_back(vertIdx + faceIndex, weight);
                     }
                 }
                 ++face;
@@ -707,22 +704,22 @@ void B3DImporter::ReadBB3D(aiScene *scene) {
         }
     }
 
-    //nodes
+    // nodes
     scene->mRootNode = _nodes[0];
     _nodes.clear(); // node ownership now belongs to scene
 
-    //material
+    // material
     if (!_materials.size()) {
         _materials.emplace_back(std::unique_ptr<aiMaterial>(new aiMaterial));
     }
     scene->mNumMaterials = static_cast<unsigned int>(_materials.size());
     scene->mMaterials = unique_to_array(_materials);
 
-    //meshes
+    // meshes
     scene->mNumMeshes = static_cast<unsigned int>(_meshes.size());
     scene->mMeshes = unique_to_array(_meshes);
 
-    //animations
+    // animations
     if (_animations.size() == 1 && _nodeAnims.size()) {
 
         aiAnimation *anim = _animations.back().get();
@@ -741,4 +738,6 @@ void B3DImporter::ReadBB3D(aiScene *scene) {
     flip.Execute(scene);
 }
 
+} // namespace Assimp
+
 #endif // !! ASSIMP_BUILD_NO_B3D_IMPORTER

code/AssetLib/B3D/B3DImporter.h

@@ -2,8 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2020, assimp team
-
+Copyright (c) 2006-2024, assimp team
 
 All rights reserved.
 
@@ -40,8 +39,10 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ----------------------------------------------------------------------
 */
 
-/** @file Definition of the .b3d importer class. */
-
+/**
+ *  @file Definition of the .b3d importer class.
+ */
+#pragma once
 #ifndef AI_B3DIMPORTER_H_INC
 #define AI_B3DIMPORTER_H_INC
 
@@ -62,14 +63,12 @@ namespace Assimp{
 class B3DImporter : public BaseImporter{
 public:
     B3DImporter() = default;
-    virtual ~B3DImporter();
-
-    virtual bool CanRead( const std::string& pFile, IOSystem* pIOHandler, bool checkSig) const;
+    ~B3DImporter() override;
+    bool CanRead( const std::string& pFile, IOSystem* pIOHandler, bool checkSig) const override;
 
 protected:
-
-    virtual const aiImporterDesc* GetInfo () const;
-    virtual void InternReadFile( const std::string& pFile, aiScene* pScene, IOSystem* pIOHandler);
+    const aiImporterDesc* GetInfo () const override;
+    void InternReadFile( const std::string& pFile, aiScene* pScene, IOSystem* pIOHandler) override;
 
 private:
 
@@ -96,7 +95,7 @@ private:
     };
 
     AI_WONT_RETURN void Oops() AI_WONT_RETURN_SUFFIX;
-    AI_WONT_RETURN void Fail( std::string str ) AI_WONT_RETURN_SUFFIX;
+    AI_WONT_RETURN void Fail(const std::string &str) AI_WONT_RETURN_SUFFIX;
 
     void ReadTEXS();
     void ReadBRUS();
@@ -113,7 +112,6 @@ private:
     void ReadBB3D( aiScene *scene );
 
     size_t _pos;
-//  unsigned _size;
     std::vector<unsigned char> _buf;
     std::vector<size_t> _stack;
 

code/AssetLib/BVH/BVHLoader.cpp

@@ -4,7 +4,7 @@
 Open Asset Import Library (assimp)
 ---------------------------------------------------------------------------
 
-Copyright (c) 2006-2020, assimp team
+Copyright (c) 2006-2024, assimp team
 
 
 
@@ -55,10 +55,11 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include <map>
 #include <memory>
 
-using namespace Assimp;
+namespace Assimp {
+
 using namespace Assimp::Formatter;
 
-static const aiImporterDesc desc = {
+static constexpr aiImporterDesc desc = {
     "BVH Importer (MoCap)",
     "",
     "",
@@ -71,6 +72,13 @@ static const aiImporterDesc desc = {
     "bvh"
 };
 
+// ------------------------------------------------------------------------------------------------
+// Aborts the file reading with an exception
+template <typename... T>
+AI_WONT_RETURN void BVHLoader::ThrowException(T &&...args) {
+    throw DeadlyImportError(mFileName, ":", mLine, " - ", args...);
+}
+
 // ------------------------------------------------------------------------------------------------
 // Constructor to be privately used by Importer
 BVHLoader::BVHLoader() :
@@ -81,22 +89,13 @@ BVHLoader::BVHLoader() :
 
 // ------------------------------------------------------------------------------------------------
 // Destructor, private as well
-BVHLoader::~BVHLoader() {}
+BVHLoader::~BVHLoader() = default;
 
 // ------------------------------------------------------------------------------------------------
 // Returns whether the class can handle the format of the given file.
-bool BVHLoader::CanRead(const std::string &pFile, IOSystem *pIOHandler, bool cs) const {
-    // check file extension
-    const std::string extension = GetExtension(pFile);
-
-    if (extension == "bvh")
-        return true;
-
-    if ((!extension.length() || cs) && pIOHandler) {
-        const char *tokens[] = { "HIERARCHY" };
-        return SearchFileHeaderForToken(pIOHandler, pFile, tokens, 1);
-    }
-    return false;
+bool BVHLoader::CanRead(const std::string &pFile, IOSystem *pIOHandler, bool /*checkSig*/) const {
+    static const char *tokens[] = { "HIERARCHY" };
+    return SearchFileHeaderForToken(pIOHandler, pFile, tokens, AI_COUNT_OF(tokens));
 }
 
 // ------------------------------------------------------------------------------------------------
@@ -117,8 +116,8 @@ void BVHLoader::InternReadFile(const std::string &pFile, aiScene *pScene, IOSyst
 
     // read file into memory
     std::unique_ptr<IOStream> file(pIOHandler->Open(pFile));
-    if (file.get() == nullptr) {
-        throw DeadlyImportError("Failed to open file " + pFile + ".");
+    if (file == nullptr) {
+        throw DeadlyImportError("Failed to open file ", pFile, ".");
     }
 
     size_t fileSize = file->FileSize();
@@ -171,29 +170,29 @@ void BVHLoader::ReadHierarchy(aiScene *pScene) {
 }
 
 // ------------------------------------------------------------------------------------------------
-// Reads a node and recursively its childs and returns the created node;
+// Reads a node and recursively its children and returns the created node;
 aiNode *BVHLoader::ReadNode() {
     // first token is name
     std::string nodeName = GetNextToken();
     if (nodeName.empty() || nodeName == "{")
-        ThrowException(format() << "Expected node name, but found \"" << nodeName << "\".");
+        ThrowException("Expected node name, but found \"", nodeName, "\".");
 
     // then an opening brace should follow
     std::string openBrace = GetNextToken();
     if (openBrace != "{")
-        ThrowException(format() << "Expected opening brace \"{\", but found \"" << openBrace << "\".");
+        ThrowException("Expected opening brace \"{\", but found \"", openBrace, "\".");
 
     // Create a node
     aiNode *node = new aiNode(nodeName);
     std::vector<aiNode *> childNodes;
 
     // and create an bone entry for it
-    mNodes.push_back(Node(node));
+    mNodes.emplace_back(node);
     Node &internNode = mNodes.back();
 
     // now read the node's contents
     std::string siteToken;
-    while (1) {
+    while (true) {
         std::string token = GetNextToken();
 
         // node offset to parent node
@@ -211,7 +210,7 @@ aiNode *BVHLoader::ReadNode() {
             siteToken.clear();
             siteToken = GetNextToken();
             if (siteToken != "Site")
-                ThrowException(format() << "Expected \"End Site\" keyword, but found \"" << token << " " << siteToken << "\".");
+                ThrowException("Expected \"End Site\" keyword, but found \"", token, " ", siteToken, "\".");
 
             aiNode *child = ReadEndSite(nodeName);
             child->mParent = node;
@@ -221,7 +220,7 @@ aiNode *BVHLoader::ReadNode() {
             break;
         } else {
             // everything else is a parse error
-            ThrowException(format() << "Unknown keyword \"" << token << "\".");
+            ThrowException("Unknown keyword \"", token, "\".");
         }
     }
 
@@ -242,14 +241,14 @@ aiNode *BVHLoader::ReadEndSite(const std::string &pParentName) {
     // check opening brace
     std::string openBrace = GetNextToken();
     if (openBrace != "{")
-        ThrowException(format() << "Expected opening brace \"{\", but found \"" << openBrace << "\".");
+        ThrowException("Expected opening brace \"{\", but found \"", openBrace, "\".");
 
     // Create a node
     aiNode *node = new aiNode("EndSite_" + pParentName);
 
     // now read the node's contents. Only possible entry is "OFFSET"
     std::string token;
-    while (1) {
+    while (true) {
         token.clear();
         token = GetNextToken();
 
@@ -261,7 +260,7 @@ aiNode *BVHLoader::ReadEndSite(const std::string &pParentName) {
             break;
         } else {
             // everything else is a parse error
-            ThrowException(format() << "Unknown keyword \"" << token << "\".");
+            ThrowException("Unknown keyword \"", token, "\".");
         }
     }
 
@@ -307,7 +306,7 @@ void BVHLoader::ReadNodeChannels(BVHLoader::Node &pNode) {
         else if (channelToken == "Zrotation")
             pNode.mChannels.push_back(Channel_RotationZ);
         else
-            ThrowException(format() << "Invalid channel specifier \"" << channelToken << "\".");
+            ThrowException("Invalid channel specifier \"", channelToken, "\".");
     }
 }
 
@@ -317,7 +316,7 @@ void BVHLoader::ReadMotion(aiScene * /*pScene*/) {
     // Read number of frames
     std::string tokenFrames = GetNextToken();
     if (tokenFrames != "Frames:")
-        ThrowException(format() << "Expected frame count \"Frames:\", but found \"" << tokenFrames << "\".");
+        ThrowException("Expected frame count \"Frames:\", but found \"", tokenFrames, "\".");
 
     float numFramesFloat = GetNextTokenAsFloat();
     mAnimNumFrames = (unsigned int)numFramesFloat;
@@ -326,7 +325,7 @@ void BVHLoader::ReadMotion(aiScene * /*pScene*/) {
     std::string tokenDuration1 = GetNextToken();
     std::string tokenDuration2 = GetNextToken();
     if (tokenDuration1 != "Frame" || tokenDuration2 != "Time:")
-        ThrowException(format() << "Expected frame duration \"Frame Time:\", but found \"" << tokenDuration1 << " " << tokenDuration2 << "\".");
+        ThrowException("Expected frame duration \"Frame Time:\", but found \"", tokenDuration1, " ", tokenDuration2, "\".");
 
     mAnimTickDuration = GetNextTokenAsFloat();
 
@@ -352,7 +351,7 @@ void BVHLoader::ReadMotion(aiScene * /*pScene*/) {
 std::string BVHLoader::GetNextToken() {
     // skip any preceding whitespace
     while (mReader != mBuffer.end()) {
-        if (!isspace(*mReader))
+        if (!isspace((unsigned char)*mReader))
             break;
 
         // count lines
@@ -365,7 +364,7 @@ std::string BVHLoader::GetNextToken() {
     // collect all chars till the next whitespace. BVH is easy in respect to that.
     std::string token;
     while (mReader != mBuffer.end()) {
-        if (isspace(*mReader))
+        if (isspace((unsigned char)*mReader))
             break;
 
         token.push_back(*mReader);
@@ -393,17 +392,11 @@ float BVHLoader::GetNextTokenAsFloat() {
     ctoken = fast_atoreal_move<float>(ctoken, result);
 
     if (ctoken != token.c_str() + token.length())
-        ThrowException(format() << "Expected a floating point number, but found \"" << token << "\".");
+        ThrowException("Expected a floating point number, but found \"", token, "\".");
 
     return result;
 }
 
-// ------------------------------------------------------------------------------------------------
-// Aborts the file reading with an exception
-AI_WONT_RETURN void BVHLoader::ThrowException(const std::string &pError) {
-    throw DeadlyImportError(format() << mFileName << ":" << mLine << " - " << pError);
-}
-
 // ------------------------------------------------------------------------------------------------
 // Constructs an animation for the motion data and stores it in the given scene
 void BVHLoader::CreateAnimation(aiScene *pScene) {
@@ -434,7 +427,7 @@ void BVHLoader::CreateAnimation(aiScene *pScene) {
         nodeAnim->mNodeName.Set(nodeName);
         std::map<BVHLoader::ChannelType, int> channelMap;
 
-        //Build map of channels
+        // Build map of channels
         for (unsigned int channel = 0; channel < node.mChannels.size(); ++channel) {
             channelMap[node.mChannels[channel]] = channel;
         }
@@ -449,11 +442,11 @@ void BVHLoader::CreateAnimation(aiScene *pScene) {
 
                 // Now compute all translations
                 for (BVHLoader::ChannelType channel = Channel_PositionX; channel <= Channel_PositionZ; channel = (BVHLoader::ChannelType)(channel + 1)) {
-                    //Find channel in node
+                    // Find channel in node
                     std::map<BVHLoader::ChannelType, int>::iterator mapIter = channelMap.find(channel);
 
                     if (mapIter == channelMap.end())
-                        throw DeadlyImportError("Missing position channel in node " + nodeName);
+                        throw DeadlyImportError("Missing position channel in node ", nodeName);
                     else {
                         int channelIdx = mapIter->second;
                         switch (channel) {
@@ -493,30 +486,27 @@ void BVHLoader::CreateAnimation(aiScene *pScene) {
             for (unsigned int fr = 0; fr < mAnimNumFrames; ++fr) {
                 aiMatrix4x4 temp;
                 aiMatrix3x3 rotMatrix;
-				for (unsigned int channelIdx = 0; channelIdx < node.mChannels.size(); ++ channelIdx) {
-					switch (node.mChannels[channelIdx]) {
-                    case Channel_RotationX:
-                        {
+                for (unsigned int channelIdx = 0; channelIdx < node.mChannels.size(); ++channelIdx) {
+                    switch (node.mChannels[channelIdx]) {
+                    case Channel_RotationX: {
                         const float angle = node.mChannelValues[fr * node.mChannels.size() + channelIdx] * float(AI_MATH_PI) / 180.0f;
-                        aiMatrix4x4::RotationX( angle, temp); rotMatrix *= aiMatrix3x3( temp);
-                        }
-                        break;
-                    case Channel_RotationY:
-                        {
+                        aiMatrix4x4::RotationX(angle, temp);
+                        rotMatrix *= aiMatrix3x3(temp);
+                    } break;
+                    case Channel_RotationY: {
                         const float angle = node.mChannelValues[fr * node.mChannels.size() + channelIdx] * float(AI_MATH_PI) / 180.0f;
-                        aiMatrix4x4::RotationY( angle, temp); rotMatrix *= aiMatrix3x3( temp);
-                        }
-                        break;
-                    case Channel_RotationZ:
-                        {
+                        aiMatrix4x4::RotationY(angle, temp);
+                        rotMatrix *= aiMatrix3x3(temp);
+                    } break;
+                    case Channel_RotationZ: {
                         const float angle = node.mChannelValues[fr * node.mChannels.size() + channelIdx] * float(AI_MATH_PI) / 180.0f;
-                        aiMatrix4x4::RotationZ( angle, temp); rotMatrix *= aiMatrix3x3( temp);
-                        }
-                        break;
+                        aiMatrix4x4::RotationZ(angle, temp);
+                        rotMatrix *= aiMatrix3x3(temp);
+                    } break;
                     default:
                         break;
-					}
-				}
+                    }
+                }
                 rotkey->mTime = double(fr);
                 rotkey->mValue = aiQuaternion(rotMatrix);
                 ++rotkey;
@@ -533,4 +523,6 @@ void BVHLoader::CreateAnimation(aiScene *pScene) {
     }
 }
 
+} // namespace Assimp
+
 #endif // !! ASSIMP_BUILD_NO_BVH_IMPORTER

code/AssetLib/BVH/BVHLoader.h

@@ -4,7 +4,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2020, assimp team
+Copyright (c) 2006-2024, assimp team
 
 
 All rights reserved.
@@ -112,7 +112,7 @@ protected:
     /** Reads the hierarchy */
     void ReadHierarchy(aiScene *pScene);
 
-    /** Reads a node and recursively its childs and returns the created node. */
+    /** Reads a node and recursively its children and returns the created node. */
     aiNode *ReadNode();
 
     /** Reads an end node and returns the created node. */
@@ -134,7 +134,8 @@ protected:
     float GetNextTokenAsFloat();
 
     /** Aborts the file reading with an exception */
-    AI_WONT_RETURN void ThrowException(const std::string &pError) AI_WONT_RETURN_SUFFIX;
+    template<typename... T>
+    AI_WONT_RETURN void ThrowException(T&&... args) AI_WONT_RETURN_SUFFIX;
 
     /** Constructs an animation for the motion data and stores it in the given scene */
     void CreateAnimation(aiScene *pScene);

code/AssetLib/Blender/BlenderBMesh.cpp

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2020, assimp team
+Copyright (c) 2006-2024, assimp team
 All rights reserved.
 
 Redistribution and use of this software in source and binary forms,
@@ -52,8 +52,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 namespace Assimp {
 template <>
 const char *LogFunctions<BlenderBMeshConverter>::Prefix() {
-    static auto prefix = "BLEND_BMESH: ";
-    return prefix;
+    return "BLEND_BMESH: ";
 }
 } // namespace Assimp
 
@@ -140,7 +139,7 @@ void BlenderBMeshConverter::ConvertPolyToFaces(const MPoly &poly) {
                 ThrowException("BMesh uv loop array has incorrect size");
             }
             const MLoopUV *loopUV = &BMesh->mloopuv[poly.loopstart];
-            AddTFace(loopUV[0].uv, loopUV[1].uv, loopUV[2].uv, poly.totloop == 4 ? loopUV[3].uv : 0);
+            AddTFace(loopUV[0].uv, loopUV[1].uv, loopUV[2].uv, poly.totloop == 4 ? loopUV[3].uv : nullptr);
         }
     } else if (poly.totloop > 4) {
 #if ASSIMP_BLEND_WITH_GLU_TESSELLATE

code/AssetLib/Blender/BlenderBMesh.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2020, assimp team
+Copyright (c) 2006-2024, assimp team
 All rights reserved.
 
 Redistribution and use of this software in source and binary forms,
@@ -80,7 +80,7 @@ namespace Assimp
         void DestroyTriMesh( );
         void ConvertPolyToFaces( const Blender::MPoly& poly );
         void AddFace( int v1, int v2, int v3, int v4 = 0 );
-        void AddTFace( const float* uv1, const float* uv2, const float *uv3, const float* uv4 = 0 );
+        void AddTFace(const float *uv1, const float *uv2, const float *uv3, const float *uv4 = nullptr);
 
         const Blender::Mesh* BMesh;
         Blender::Mesh* triMesh;

code/AssetLib/Blender/BlenderCustomData.cpp

@@ -96,7 +96,8 @@ struct CustomDataTypeDescription {
         *           other (like CD_ORCO, ...) uses arrays of rawtypes or even arrays of Structures
         *           use a special readfunction for that cases
         */
-std::array<CustomDataTypeDescription, CD_NUMTYPES> customDataTypeDescriptions = { { DECL_STRUCT_CUSTOMDATATYPEDESCRIPTION(MVert),
+static std::array<CustomDataTypeDescription, CD_NUMTYPES> customDataTypeDescriptions = { {
+        DECL_STRUCT_CUSTOMDATATYPEDESCRIPTION(MVert),
         DECL_UNSUPPORTED_CUSTOMDATATYPEDESCRIPTION,
         DECL_UNSUPPORTED_CUSTOMDATATYPEDESCRIPTION,
         DECL_STRUCT_CUSTOMDATATYPEDESCRIPTION(MEdge),
@@ -149,7 +150,7 @@ bool isValidCustomDataType(const int cdtype) {
 
 bool readCustomData(std::shared_ptr<ElemBase> &out, const int cdtype, const size_t cnt, const FileDatabase &db) {
     if (!isValidCustomDataType(cdtype)) {
-        throw Error((Formatter::format(), "CustomData.type ", cdtype, " out of index"));
+        throw Error("CustomData.type ", cdtype, " out of index");
     }
 
     const CustomDataTypeDescription cdtd = customDataTypeDescriptions[cdtype];

code/AssetLib/Blender/BlenderDNA.cpp

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2020, assimp team
+Copyright (c) 2006-2024, assimp team
 
 
 All rights reserved.
@@ -72,7 +72,7 @@ struct Type {
 
 // ------------------------------------------------------------------------------------------------
 void DNAParser::Parse() {
-    StreamReaderAny &stream = *db.reader.get();
+    StreamReaderAny &stream = *db.reader;
     DNA &dna = db.dna;
 
     if (!match4(stream, "SDNA")) {
@@ -130,9 +130,7 @@ void DNAParser::Parse() {
 
         uint16_t n = stream.GetI2();
         if (n >= types.size()) {
-            throw DeadlyImportError((format(),
-                    "BlenderDNA: Invalid type index in structure name", n,
-                    " (there are only ", types.size(), " entries)"));
+            throw DeadlyImportError("BlenderDNA: Invalid type index in structure name", n, " (there are only ", types.size(), " entries)");
         }
 
         // maintain separate indexes
@@ -141,7 +139,6 @@ void DNAParser::Parse() {
         dna.structures.push_back(Structure());
         Structure &s = dna.structures.back();
         s.name = types[n].name;
-        //s.index = dna.structures.size()-1;
 
         n = stream.GetI2();
         s.fields.reserve(n);
@@ -151,9 +148,7 @@ void DNAParser::Parse() {
 
             uint16_t j = stream.GetI2();
             if (j >= types.size()) {
-                throw DeadlyImportError((format(),
-                        "BlenderDNA: Invalid type index in structure field ", j,
-                        " (there are only ", types.size(), " entries)"));
+                throw DeadlyImportError("BlenderDNA: Invalid type index in structure field ", j, " (there are only ", types.size(), " entries)");
             }
             s.fields.push_back(Field());
             Field &f = s.fields.back();
@@ -164,9 +159,7 @@ void DNAParser::Parse() {
 
             j = stream.GetI2();
             if (j >= names.size()) {
-                throw DeadlyImportError((format(),
-                        "BlenderDNA: Invalid name index in structure field ", j,
-                        " (there are only ", names.size(), " entries)"));
+                throw DeadlyImportError("BlenderDNA: Invalid name index in structure field ", j, " (there are only ", names.size(), " entries)");
             }
 
             f.name = names[j];
@@ -188,9 +181,7 @@ void DNAParser::Parse() {
             if (*f.name.rbegin() == ']') {
                 const std::string::size_type rb = f.name.find('[');
                 if (rb == std::string::npos) {
-                    throw DeadlyImportError((format(),
-                            "BlenderDNA: Encountered invalid array declaration ",
-                            f.name));
+                    throw DeadlyImportError("BlenderDNA: Encountered invalid array declaration ", f.name);
                 }
 
                 f.flags |= FieldFlag_Array;
@@ -207,9 +198,9 @@ void DNAParser::Parse() {
         s.size = offset;
     }
 
-    ASSIMP_LOG_DEBUG_F("BlenderDNA: Got ", dna.structures.size(), " structures with totally ", fields, " fields");
+    ASSIMP_LOG_DEBUG("BlenderDNA: Got ", dna.structures.size(), " structures with totally ", fields, " fields");
 
-#ifdef ASSIMP_BUILD_BLENDER_DEBUG
+#if ASSIMP_BUILD_BLENDER_DEBUG_DNA
     dna.DumpToFile();
 #endif
 
@@ -217,7 +208,7 @@ void DNAParser::Parse() {
     dna.RegisterConverters();
 }
 
-#ifdef ASSIMP_BUILD_BLENDER_DEBUG
+#if ASSIMP_BUILD_BLENDER_DEBUG_DNA
 
 #include <fstream>
 // ------------------------------------------------------------------------------------------------
@@ -246,7 +237,7 @@ void DNA ::DumpToFile() {
 
     ASSIMP_LOG_INFO("BlenderDNA: Dumped dna to dna.txt");
 }
-#endif
+#endif // ASSIMP_BUILD_BLENDER_DEBUG_DNA
 
 // ------------------------------------------------------------------------------------------------
 /*static*/ void DNA ::ExtractArraySize(
@@ -334,10 +325,10 @@ void SectionParser ::Next() {
     stream.SetCurrentPos(current.start + current.size);
 
     const char tmp[] = {
-        (const char)stream.GetI1(),
-        (const char)stream.GetI1(),
-        (const char)stream.GetI1(),
-        (const char)stream.GetI1()
+        (char)stream.GetI1(),
+        (char)stream.GetI1(),
+        (char)stream.GetI1(),
+        (char)stream.GetI1()
     };
     current.id = std::string(tmp, tmp[3] ? 4 : tmp[2] ? 3 : tmp[1] ? 2 : 1);
 

code/AssetLib/Blender/BlenderDNA.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2020, assimp team
+Copyright (c) 2006-2024, assimp team
 
 
 All rights reserved.
@@ -59,6 +59,13 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #define ASSIMP_BUILD_BLENDER_DEBUG
 #endif
 
+// set this to non-zero to dump BlenderDNA stuff to dna.txt.
+// you could set it on the assimp build command line too without touching it here.
+// !!! please make sure this is set to 0 in the repo !!!
+#ifndef ASSIMP_BUILD_BLENDER_DEBUG_DNA
+#define ASSIMP_BUILD_BLENDER_DEBUG_DNA 0
+#endif
+
 // #define ASSIMP_BUILD_BLENDER_NO_STATS
 
 namespace Assimp {
@@ -83,9 +90,9 @@ class ObjectCache;
  *  ancestry. */
 // -------------------------------------------------------------------------------
 struct Error : DeadlyImportError {
-    Error(const std::string &s) :
-            DeadlyImportError(s) {
-        // empty
+    template <typename... T>
+    explicit Error(T &&...args) :
+            DeadlyImportError(args...) {
     }
 };
 
@@ -99,9 +106,7 @@ struct ElemBase {
         // empty
     }
 
-    virtual ~ElemBase() {
-        // empty
-    }
+    virtual ~ElemBase() = default;
 
     /** Type name of the element. The type
      * string points is the `c_str` of the `name` attribute of the
@@ -186,7 +191,7 @@ struct Field {
 };
 
 // -------------------------------------------------------------------------------
-/** Range of possible behaviours for fields absend in the input file. Some are
+/** Range of possible behaviors for fields absence in the input file. Some are
  *  mission critical so we need them, while others can silently be default
  *  initialized and no animations are harmed. */
 // -------------------------------------------------------------------------------
@@ -394,7 +399,7 @@ private:
 
 // --------------------------------------------------------
 template <>
-struct Structure ::_defaultInitializer<ErrorPolicy_Warn> {
+struct Structure::_defaultInitializer<ErrorPolicy_Warn> {
 
     template <typename T>
     void operator()(T &out, const char *reason = "<add reason>") {
@@ -406,13 +411,13 @@ struct Structure ::_defaultInitializer<ErrorPolicy_Warn> {
 };
 
 template <>
-struct Structure ::_defaultInitializer<ErrorPolicy_Fail> {
+struct Structure::_defaultInitializer<ErrorPolicy_Fail> {
 
     template <typename T>
-    void operator()(T & /*out*/, const char * = "") {
+    void operator()(T & /*out*/, const char *message = "") {
         // obviously, it is crucial that _DefaultInitializer is used
         // only from within a catch clause.
-        throw DeadlyImportError("Constructing BlenderDNA Structure encountered an error");
+        throw DeadlyImportError("Constructing BlenderDNA Structure encountered an error: ", message);
     }
 };
 
@@ -424,6 +429,17 @@ inline bool Structure ::ResolvePointer<std::shared_ptr, ElemBase>(std::shared_pt
         const Field &f,
         bool) const;
 
+template <> bool Structure :: ResolvePointer<std::shared_ptr,ElemBase>(
+    std::shared_ptr<ElemBase>& out, const Pointer & ptrval,
+    const FileDatabase& db, const Field&, bool) const;
+template <> inline void Structure :: Convert<int>    (int& dest,const FileDatabase& db) const;
+template<> inline void Structure :: Convert<short>  (short& dest,const FileDatabase& db) const;
+template <> inline void Structure :: Convert<char>   (char& dest,const FileDatabase& db) const;
+template <> inline void Structure::Convert<unsigned char>(unsigned char& dest, const FileDatabase& db) const;
+template <> inline void Structure :: Convert<float>  (float& dest,const FileDatabase& db) const;
+template <> inline void Structure :: Convert<double> (double& dest,const FileDatabase& db) const;
+template <> inline void Structure :: Convert<Pointer> (Pointer& dest,const FileDatabase& db) const;
+
 // -------------------------------------------------------------------------------
 /** Represents the full data structure information for a single BLEND file.
  *  This data is extracted from the DNA1 chunk in the file.
@@ -469,7 +485,7 @@ public:
      *  in BlenderScene.cpp and is machine-generated.
      *  Converters are used to quickly handle objects whose
      *  exact data type is a runtime-property and not yet
-     *  known at compile time (consier Object::data).*/
+     *  known at compile time (consider Object::data).*/
     void RegisterConverters();
 
     // --------------------------------------------------------
@@ -495,7 +511,7 @@ public:
             const Structure &structure,
             const FileDatabase &db) const;
 
-#ifdef ASSIMP_BUILD_BLENDER_DEBUG
+#if ASSIMP_BUILD_BLENDER_DEBUG_DNA
     // --------------------------------------------------------
     /** Dump the DNA to a text file. This is for debugging purposes.
      *  The output file is `dna.txt` in the current working folder*/

code/AssetLib/Blender/BlenderDNA.inl

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2020, assimp team
+Copyright (c) 2006-2024, assimp team
 
 All rights reserved.
 
@@ -57,9 +57,7 @@ const Field& Structure :: operator [] (const std::string& ss) const
 {
     std::map<std::string, size_t>::const_iterator it = indices.find(ss);
     if (it == indices.end()) {
-        throw Error((Formatter::format(),
-            "BlendDNA: Did not find a field named `",ss,"` in structure `",name,"`"
-            ));
+        throw Error("BlendDNA: Did not find a field named `",ss,"` in structure `",name,"`");
     }
 
     return fields[(*it).second];
@@ -76,9 +74,7 @@ const Field* Structure :: Get (const std::string& ss) const
 const Field& Structure :: operator [] (const size_t i) const
 {
     if (i >= fields.size()) {
-        throw Error((Formatter::format(),
-            "BlendDNA: There is no field with index `",i,"` in structure `",name,"`"
-            ));
+        throw Error("BlendDNA: There is no field with index `",i,"` in structure `",name,"`");
     }
 
     return fields[i];
@@ -109,9 +105,7 @@ void Structure :: ReadFieldArray(T (& out)[M], const char* name, const FileDatab
 
         // is the input actually an array?
         if (!(f.flags & FieldFlag_Array)) {
-            throw Error((Formatter::format(),"Field `",name,"` of structure `",
-                this->name,"` ought to be an array of size ",M
-                ));
+            throw Error("Field `",name,"` of structure `",this->name,"` ought to be an array of size ",M);
         }
 
         db.reader->IncPtr(f.offset);
@@ -148,9 +142,9 @@ void Structure :: ReadFieldArray2(T (& out)[M][N], const char* name, const FileD
 
         // is the input actually an array?
         if (!(f.flags & FieldFlag_Array)) {
-            throw Error((Formatter::format(),"Field `",name,"` of structure `",
+            throw Error("Field `",name,"` of structure `",
                 this->name,"` ought to be an array of size ",M,"*",N
-                ));
+                );
         }
 
         db.reader->IncPtr(f.offset);
@@ -195,8 +189,8 @@ bool Structure :: ReadFieldPtr(TOUT<T>& out, const char* name, const FileDatabas
 
         // sanity check, should never happen if the genblenddna script is right
         if (!(f->flags & FieldFlag_Pointer)) {
-            throw Error((Formatter::format(),"Field `",name,"` of structure `",
-                this->name,"` ought to be a pointer"));
+            throw Error("Field `",name,"` of structure `",
+                this->name,"` ought to be a pointer");
         }
 
         db.reader->IncPtr(f->offset);
@@ -241,8 +235,8 @@ bool Structure :: ReadFieldPtr(TOUT<T> (&out)[N], const char* name,
 #ifdef _DEBUG
         // sanity check, should never happen if the genblenddna script is right
         if ((FieldFlag_Pointer|FieldFlag_Pointer) != (f->flags & (FieldFlag_Pointer|FieldFlag_Pointer))) {
-            throw Error((Formatter::format(),"Field `",name,"` of structure `",
-                this->name,"` ought to be a pointer AND an array"));
+            throw Error("Field `",name,"` of structure `",
+                this->name,"` ought to be a pointer AND an array");
         }
 #endif // _DEBUG
 
@@ -322,8 +316,8 @@ bool Structure::ReadCustomDataPtr(std::shared_ptr<ElemBase>&out, int cdtype, con
 
 		// sanity check, should never happen if the genblenddna script is right
 		if (!(f->flags & FieldFlag_Pointer)) {
-			throw Error((Formatter::format(), "Field `", name, "` of structure `",
-				this->name, "` ought to be a pointer"));
+			throw Error("Field `", name, "` of structure `",
+				this->name, "` ought to be a pointer");
 		}
 
 		db.reader->IncPtr(f->offset);
@@ -369,8 +363,8 @@ bool Structure::ReadFieldPtrVector(vector<TOUT<T>>&out, const char* name, const
 
 		// sanity check, should never happen if the genblenddna script is right
 		if (!(f->flags & FieldFlag_Pointer)) {
-			throw Error((Formatter::format(), "Field `", name, "` of structure `",
-				this->name, "` ought to be a pointer"));
+			throw Error("Field `", name, "` of structure `",
+				this->name, "` ought to be a pointer");
 		}
 
 		db.reader->IncPtr(f->offset);
@@ -428,9 +422,9 @@ bool Structure :: ResolvePointer(TOUT<T>& out, const Pointer & ptrval, const Fil
     // and check if it matches the type which we expect.
     const Structure& ss = db.dna[block->dna_index];
     if (ss != s) {
-        throw Error((Formatter::format(),"Expected target to be of type `",s.name,
+        throw Error("Expected target to be of type `",s.name,
             "` but seemingly it is a `",ss.name,"` instead"
-            ));
+            );
     }
 
     // try to retrieve the object from the cache
@@ -571,7 +565,7 @@ template <> bool Structure :: ResolvePointer<std::shared_ptr,ElemBase>(std::shar
         // this might happen if DNA::RegisterConverters hasn't been called so far
         // or if the target type is not contained in `our` DNA.
         out.reset();
-        ASSIMP_LOG_WARN_F( "Failed to find a converter for the `",s.name,"` structure" );
+        ASSIMP_LOG_WARN( "Failed to find a converter for the `",s.name,"` structure" );
         return false;
     }
 
@@ -614,16 +608,14 @@ const FileBlockHead* Structure :: LocateFileBlockForAddress(const Pointer & ptrv
     if (it == db.entries.end()) {
         // this is crucial, pointers may not be invalid.
         // this is either a corrupted file or an attempted attack.
-        throw DeadlyImportError((Formatter::format(),"Failure resolving pointer 0x",
-            std::hex,ptrval.val,", no file block falls into this address range"
-            ));
+        throw DeadlyImportError("Failure resolving pointer 0x",
+            std::hex,ptrval.val,", no file block falls into this address range");
     }
     if (ptrval.val >= (*it).address.val + (*it).size) {
-        throw DeadlyImportError((Formatter::format(),"Failure resolving pointer 0x",
+        throw DeadlyImportError("Failure resolving pointer 0x",
             std::hex,ptrval.val,", nearest file block starting at 0x",
             (*it).address.val," ends at 0x",
-            (*it).address.val + (*it).size
-            ));
+            (*it).address.val + (*it).size);
     }
     return &*it;
 }
@@ -676,7 +668,7 @@ template <typename T> inline void ConvertDispatcher(T& out, const Structure& in,
         out = static_cast<T>(db.reader->GetF8());
     }
     else {
-        throw DeadlyImportError("Unknown source for conversion to primitive data type: "+in.name);
+        throw DeadlyImportError("Unknown source for conversion to primitive data type: ", in.name);
     }
 }
 
@@ -784,9 +776,7 @@ const Structure& DNA :: operator [] (const std::string& ss) const
 {
     std::map<std::string, size_t>::const_iterator it = indices.find(ss);
     if (it == indices.end()) {
-        throw Error((Formatter::format(),
-            "BlendDNA: Did not find a structure named `",ss,"`"
-            ));
+        throw Error("BlendDNA: Did not find a structure named `",ss,"`");
     }
 
     return structures[(*it).second];
@@ -803,9 +793,7 @@ const Structure* DNA :: Get (const std::string& ss) const
 const Structure& DNA :: operator [] (const size_t i) const
 {
     if (i >= structures.size()) {
-        throw Error((Formatter::format(),
-            "BlendDNA: There is no structure with index `",i,"`"
-            ));
+        throw Error("BlendDNA: There is no structure with index `",i,"`");
     }
 
     return structures[i];

code/AssetLib/Blender/BlenderIntermediate.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2020, assimp team
+Copyright (c) 2006-2024, assimp team
 
 
 All rights reserved.
@@ -65,8 +65,7 @@ namespace Blender {
     struct TempArray    {
         typedef TCLASS< T*,std::allocator<T*> > mywrap;
 
-        TempArray() {
-        }
+        TempArray() = default;
 
         ~TempArray () {
             for(T* elem : arr) {

code/AssetLib/Blender/BlenderLoader.cpp

@@ -3,7 +3,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2020, assimp team
+Copyright (c) 2006-2024, assimp team
 
 
 All rights reserved.
@@ -63,30 +63,29 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include <assimp/StringComparison.h>
 
 #include <cctype>
+#include <memory>
+#include <utility>
 
 // zlib is needed for compressed blend files
 #ifndef ASSIMP_BUILD_NO_COMPRESSED_BLEND
-#ifdef ASSIMP_BUILD_NO_OWN_ZLIB
-#include <zlib.h>
-#else
-#include "../contrib/zlib/zlib.h"
-#endif
+#include "Common/Compression.h"
 #endif
 
 namespace Assimp {
+
 template <>
 const char *LogFunctions<BlenderImporter>::Prefix() {
-    static auto prefix = "BLEND: ";
-    return prefix;
+    return "BLEND: ";
 }
+
 } // namespace Assimp
 
 using namespace Assimp;
 using namespace Assimp::Blender;
 using namespace Assimp::Formatter;
 
-static const aiImporterDesc blenderDesc = {
-    "Blender 3D Importer \nhttp://www.blender3d.org",
+static constexpr aiImporterDesc blenderDesc = {
+    "Blender 3D Importer (http://www.blender3d.org)",
     "",
     "",
     "No animation support yet",
@@ -111,28 +110,12 @@ BlenderImporter::~BlenderImporter() {
     delete modifier_cache;
 }
 
-static const char *Tokens[] = { "BLENDER" };
-static const char *TokensForSearch[] = { "blender" };
+static const char Token[] = "BLENDER";
 
 // ------------------------------------------------------------------------------------------------
 // Returns whether the class can handle the format of the given file.
-bool BlenderImporter::CanRead(const std::string &pFile, IOSystem *pIOHandler, bool checkSig) const {
-    const std::string &extension = GetExtension(pFile);
-    if (extension == "blend") {
-        return true;
-    }
-
-    else if ((!extension.length() || checkSig) && pIOHandler) {
-        // note: this won't catch compressed files
-        return SearchFileHeaderForToken(pIOHandler, pFile, TokensForSearch, 1);
-    }
-    return false;
-}
-
-// ------------------------------------------------------------------------------------------------
-// List all extensions handled by this loader
-void BlenderImporter::GetExtensionList(std::set<std::string> &app) {
-    app.insert("blend");
+bool BlenderImporter::CanRead(const std::string &pFile, IOSystem *pIOHandler, bool /*checkSig*/) const {
+    return ParseMagicToken(pFile, pIOHandler).error.empty();
 }
 
 // ------------------------------------------------------------------------------------------------
@@ -151,98 +134,25 @@ void BlenderImporter::SetupProperties(const Importer * /*pImp*/) {
 // Imports the given file into the given scene structure.
 void BlenderImporter::InternReadFile(const std::string &pFile,
         aiScene *pScene, IOSystem *pIOHandler) {
-#ifndef ASSIMP_BUILD_NO_COMPRESSED_BLEND
-    std::vector<Bytef> uncompressed;
-#endif
-
     FileDatabase file;
-    std::shared_ptr<IOStream> stream(pIOHandler->Open(pFile, "rb"));
-    if (!stream) {
-        ThrowException("Could not open file for reading");
+    StreamOrError streamOrError = ParseMagicToken(pFile, pIOHandler);
+    if (!streamOrError.error.empty()) {
+        ThrowException(streamOrError.error);
     }
+    std::shared_ptr<IOStream> stream = std::move(streamOrError.stream);
 
-    char magic[8] = { 0 };
-    stream->Read(magic, 7, 1);
-    if (strcmp(magic, Tokens[0])) {
-        // Check for presence of the gzip header. If yes, assume it is a
-        // compressed blend file and try uncompressing it, else fail. This is to
-        // avoid uncompressing random files which our loader might end up with.
-#ifdef ASSIMP_BUILD_NO_COMPRESSED_BLEND
-        ThrowException("BLENDER magic bytes are missing, is this file compressed (Assimp was built without decompression support)?");
-#else
+    char version[4] = { 0 };
+    file.i64bit = (stream->Read(version, 1, 1), version[0] == '-');
+    file.little = (stream->Read(version, 1, 1), version[0] == 'v');
 
-        if (magic[0] != 0x1f || static_cast<uint8_t>(magic[1]) != 0x8b) {
-            ThrowException("BLENDER magic bytes are missing, couldn't find GZIP header either");
-        }
+    stream->Read(version, 3, 1);
+    version[3] = '\0';
 
-        LogDebug("Found no BLENDER magic word but a GZIP header, might be a compressed file");
-        if (magic[2] != 8) {
-            ThrowException("Unsupported GZIP compression method");
-        }
-
-        // http://www.gzip.org/zlib/rfc-gzip.html#header-trailer
-        stream->Seek(0L, aiOrigin_SET);
-        std::shared_ptr<StreamReaderLE> reader = std::shared_ptr<StreamReaderLE>(new StreamReaderLE(stream));
-
-        // build a zlib stream
-        z_stream zstream;
-        zstream.opaque = Z_NULL;
-        zstream.zalloc = Z_NULL;
-        zstream.zfree = Z_NULL;
-        zstream.data_type = Z_BINARY;
-
-        // http://hewgill.com/journal/entries/349-how-to-decompress-gzip-stream-with-zlib
-        inflateInit2(&zstream, 16 + MAX_WBITS);
-
-        zstream.next_in = reinterpret_cast<Bytef *>(reader->GetPtr());
-        zstream.avail_in = (uInt)reader->GetRemainingSize();
-
-        size_t total = 0l;
-
-        // TODO: be smarter about this, decompress directly into heap buffer
-        // and decompress the data .... do 1k chunks in the hope that we won't kill the stack
-#define MYBLOCK 1024
-        Bytef block[MYBLOCK];
-        int ret;
-        do {
-            zstream.avail_out = MYBLOCK;
-            zstream.next_out = block;
-            ret = inflate(&zstream, Z_NO_FLUSH);
-
-            if (ret != Z_STREAM_END && ret != Z_OK) {
-                ThrowException("Failure decompressing this file using gzip, seemingly it is NOT a compressed .BLEND file");
-            }
-            const size_t have = MYBLOCK - zstream.avail_out;
-            total += have;
-            uncompressed.resize(total);
-            memcpy(uncompressed.data() + total - have, block, have);
-        } while (ret != Z_STREAM_END);
-
-        // terminate zlib
-        inflateEnd(&zstream);
-
-        // replace the input stream with a memory stream
-        stream.reset(new MemoryIOStream(reinterpret_cast<uint8_t *>(uncompressed.data()), total));
-
-        // .. and retry
-        stream->Read(magic, 7, 1);
-        if (strcmp(magic, "BLENDER")) {
-            ThrowException("Found no BLENDER magic word in decompressed GZIP file");
-        }
-#endif
-    }
-
-    file.i64bit = (stream->Read(magic, 1, 1), magic[0] == '-');
-    file.little = (stream->Read(magic, 1, 1), magic[0] == 'v');
-
-    stream->Read(magic, 3, 1);
-    magic[3] = '\0';
-
-    LogInfo((format(), "Blender version is ", magic[0], ".", magic + 1,
+    LogInfo("Blender version is ", version[0], ".", version + 1,
             " (64bit: ", file.i64bit ? "true" : "false",
-            ", little endian: ", file.little ? "true" : "false", ")"));
+            ", little endian: ", file.little ? "true" : "false", ")");
 
-    ParseBlendFile(file, stream);
+    ParseBlendFile(file, std::move(stream));
 
     Scene scene;
     ExtractScene(scene, file);
@@ -252,14 +162,14 @@ void BlenderImporter::InternReadFile(const std::string &pFile,
 
 // ------------------------------------------------------------------------------------------------
 void BlenderImporter::ParseBlendFile(FileDatabase &out, std::shared_ptr<IOStream> stream) {
-    out.reader = std::shared_ptr<StreamReaderAny>(new StreamReaderAny(stream, out.little));
+    out.reader = std::make_shared<StreamReaderAny>(stream, out.little);
 
     DNAParser dna_reader(out);
     const DNA *dna = nullptr;
 
     out.entries.reserve(128);
     { // even small BLEND files tend to consist of many file blocks
-        SectionParser parser(*out.reader.get(), out.i64bit);
+        SectionParser parser(*out.reader, out.i64bit);
 
         // first parse the file in search for the DNA and insert all other sections into the database
         while ((parser.Next(), 1)) {
@@ -313,7 +223,7 @@ void BlenderImporter::ExtractScene(Scene &out, const FileDatabase &file) {
     ss.Convert(out, file);
 
 #ifndef ASSIMP_BUILD_BLENDER_NO_STATS
-    ASSIMP_LOG_INFO_F(
+    ASSIMP_LOG_INFO(
             "(Stats) Fields read: ", file.stats().fields_read,
             ", pointers resolved: ", file.stats().pointers_resolved,
             ", cache hits: ", file.stats().cache_hits,
@@ -321,42 +231,81 @@ void BlenderImporter::ExtractScene(Scene &out, const FileDatabase &file) {
 #endif
 }
 
+// ------------------------------------------------------------------------------------------------
+void BlenderImporter::ParseSubCollection(const Blender::Scene &in, aiNode *root, const std::shared_ptr<Collection>& collection, ConversionData &conv_data) {
+
+    std::deque<Object *> root_objects;
+    // Count number of objects
+    for (std::shared_ptr<CollectionObject> cur = std::static_pointer_cast<CollectionObject>(collection->gobject.first); cur; cur = cur->next) {
+        if (cur->ob) {
+            root_objects.push_back(cur->ob);
+        }
+    }
+    std::deque<Collection *> root_children;
+    // Count number of child nodes
+    for (std::shared_ptr<CollectionChild> cur = std::static_pointer_cast<CollectionChild>(collection->children.first); cur; cur = cur->next) {
+        if (cur->collection) {
+            root_children.push_back(cur->collection.get());
+        }
+    }
+    root->mNumChildren = static_cast<unsigned int>(root_objects.size() + root_children.size());
+    root->mChildren = new aiNode *[root->mNumChildren]();
+
+    for (unsigned int i = 0; i < static_cast<unsigned int>(root_objects.size()); ++i) {
+        root->mChildren[i] = ConvertNode(in, root_objects[i], conv_data, aiMatrix4x4());
+        root->mChildren[i]->mParent = root;
+    }
+
+    // For each subcollection create a new node to represent it
+    unsigned int iterator = static_cast<unsigned int>(root_objects.size());
+    for (std::shared_ptr<CollectionChild> cur = std::static_pointer_cast<CollectionChild>(collection->children.first); cur; cur = cur->next) {
+        if (cur->collection) {
+            root->mChildren[iterator] = new aiNode(cur->collection->id.name + 2); // skip over the name prefix 'OB'
+            root->mChildren[iterator]->mParent = root;
+            ParseSubCollection(in, root->mChildren[iterator], cur->collection, conv_data);
+        }
+        iterator += 1;
+    }
+}
+
 // ------------------------------------------------------------------------------------------------
 void BlenderImporter::ConvertBlendFile(aiScene *out, const Scene &in, const FileDatabase &file) {
     ConversionData conv(file);
 
-    // FIXME it must be possible to take the hierarchy directly from
-    // the file. This is terrible. Here, we're first looking for
-    // all objects which don't have parent objects at all -
-    std::deque<const Object *> no_parents;
-    for (std::shared_ptr<Base> cur = std::static_pointer_cast<Base>(in.base.first); cur; cur = cur->next) {
-        if (cur->object) {
-            if (!cur->object->parent) {
-                no_parents.push_back(cur->object.get());
-            } else {
-                conv.objects.insert(cur->object.get());
-            }
-        }
-    }
-    for (std::shared_ptr<Base> cur = in.basact; cur; cur = cur->next) {
-        if (cur->object) {
-            if (cur->object->parent) {
-                conv.objects.insert(cur->object.get());
-            }
-        }
-    }
-
-    if (no_parents.empty()) {
-        ThrowException("Expected at least one object with no parent");
-    }
-
     aiNode *root = out->mRootNode = new aiNode("<BlenderRoot>");
+    // Iterate over all objects directly under master_collection,
+    // If in.master_collection == null, then we're parsing something older.
+    if (in.master_collection) {
+        ParseSubCollection(in, root, in.master_collection, conv);
+    } else {
+        std::deque<const Object *> no_parents;
+        for (std::shared_ptr<Base> cur = std::static_pointer_cast<Base>(in.base.first); cur; cur = cur->next) {
+            if (cur->object) {
+                if (!cur->object->parent) {
+                    no_parents.push_back(cur->object.get());
+                } else {
+                    conv.objects.insert(cur->object.get());
+                }
+            }
+        }
+        for (std::shared_ptr<Base> cur = in.basact; cur; cur = cur->next) {
+            if (cur->object) {
+                if (cur->object->parent) {
+                    conv.objects.insert(cur->object.get());
+                }
+            }
+        }
 
-    root->mNumChildren = static_cast<unsigned int>(no_parents.size());
-    root->mChildren = new aiNode *[root->mNumChildren]();
-    for (unsigned int i = 0; i < root->mNumChildren; ++i) {
-        root->mChildren[i] = ConvertNode(in, no_parents[i], conv, aiMatrix4x4());
-        root->mChildren[i]->mParent = root;
+        if (no_parents.empty()) {
+            ThrowException("Expected at least one object with no parent");
+        }
+
+        root->mNumChildren = static_cast<unsigned int>(no_parents.size());
+        root->mChildren = new aiNode *[root->mNumChildren]();
+        for (unsigned int i = 0; i < root->mNumChildren; ++i) {
+            root->mChildren[i] = ConvertNode(in, no_parents[i], conv, aiMatrix4x4());
+            root->mChildren[i]->mParent = root;
+        }
     }
 
     BuildMaterials(conv);
@@ -410,7 +359,7 @@ void BlenderImporter::ResolveImage(aiMaterial *out, const Material *mat, const M
     // check if the file contents are bundled with the BLEND file
     if (img->packedfile) {
         name.data[0] = '*';
-        name.length = 1 + ASSIMP_itoa10(name.data + 1, static_cast<unsigned int>(MAXLEN - 1), static_cast<int32_t>(conv_data.textures->size()));
+        name.length = 1 + ASSIMP_itoa10(name.data + 1, static_cast<unsigned int>(AI_MAXLEN - 1), static_cast<int32_t>(conv_data.textures->size()));
 
         conv_data.textures->push_back(new aiTexture());
         aiTexture *curTex = conv_data.textures->back();
@@ -423,9 +372,9 @@ void BlenderImporter::ResolveImage(aiMaterial *out, const Material *mat, const M
             --s;
         }
 
-        curTex->achFormatHint[0] = s + 1 > e ? '\0' : (char)::tolower(s[1]);
-        curTex->achFormatHint[1] = s + 2 > e ? '\0' : (char)::tolower(s[2]);
-        curTex->achFormatHint[2] = s + 3 > e ? '\0' : (char)::tolower(s[3]);
+        curTex->achFormatHint[0] = s + 1 > e ? '\0' : (char)::tolower((unsigned char)s[1]);
+        curTex->achFormatHint[1] = s + 2 > e ? '\0' : (char)::tolower((unsigned char)s[2]);
+        curTex->achFormatHint[2] = s + 3 > e ? '\0' : (char)::tolower((unsigned char)s[3]);
         curTex->achFormatHint[3] = '\0';
 
         // tex->mHeight = 0;
@@ -437,7 +386,7 @@ void BlenderImporter::ResolveImage(aiMaterial *out, const Material *mat, const M
 
         curTex->pcData = reinterpret_cast<aiTexel *>(ch);
 
-        LogInfo("Reading embedded texture, original file was " + std::string(img->name));
+        LogInfo("Reading embedded texture, original file was ", img->name);
     } else {
         name = aiString(img->name);
     }
@@ -484,7 +433,7 @@ void BlenderImporter::AddSentinelTexture(aiMaterial *out, const Material *mat, c
     (void)conv_data;
 
     aiString name;
-    name.length = ai_snprintf(name.data, MAXLEN, "Procedural,num=%i,type=%s", conv_data.sentinel_cnt++,
+    name.length = ai_snprintf(name.data, AI_MAXLEN, "Procedural,num=%i,type=%s", conv_data.sentinel_cnt++,
             GetTextureTypeDisplayString(tex->tex->type));
     out->AddProperty(&name, AI_MATKEY_TEXTURE_DIFFUSE(
                                     conv_data.next_texture[aiTextureType_DIFFUSE]++));
@@ -519,7 +468,7 @@ void BlenderImporter::ResolveTexture(aiMaterial *out, const Material *mat, const
     case Tex::Type_POINTDENSITY:
     case Tex::Type_VOXELDATA:
 
-        LogWarn(std::string("Encountered a texture with an unsupported type: ") + dispnam);
+        LogWarn("Encountered a texture with an unsupported type: ", dispnam);
         AddSentinelTexture(out, mat, tex, conv_data);
         break;
 
@@ -682,7 +631,7 @@ void BlenderImporter::BuildMaterials(ConversionData &conv_data) {
 
     BuildDefaultMaterial(conv_data);
 
-    for (std::shared_ptr<Material> mat : conv_data.materials_raw) {
+    for (const std::shared_ptr<Material> &mat : conv_data.materials_raw) {
 
         // reset per material global counters
         for (size_t i = 0; i < sizeof(conv_data.next_texture) / sizeof(conv_data.next_texture[0]); ++i) {
@@ -748,15 +697,14 @@ void BlenderImporter::BuildMaterials(ConversionData &conv_data) {
 void BlenderImporter::CheckActualType(const ElemBase *dt, const char *check) {
     ai_assert(dt);
     if (strcmp(dt->dna_type, check)) {
-        ThrowException((format(),
-                "Expected object at ", std::hex, dt, " to be of type `", check,
-                "`, but it claims to be a `", dt->dna_type, "`instead"));
+        ThrowException("Expected object at ", std::hex, dt, " to be of type `", check,
+                "`, but it claims to be a `", dt->dna_type, "`instead");
     }
 }
 
 // ------------------------------------------------------------------------------------------------
 void BlenderImporter::NotSupportedObjectType(const Object *obj, const char *type) {
-    LogWarn((format(), "Object `", obj->id.name, "` - type is unsupported: `", type, "`, skipping"));
+    LogWarn("Object `", obj->id.name, "` - type is unsupported: `", type, "`, skipping");
 }
 
 // ------------------------------------------------------------------------------------------------
@@ -989,7 +937,7 @@ void BlenderImporter::ConvertMesh(const Scene & /*in*/, const Object * /*obj*/,
     // key is material number, value is the TextureUVMapping for the material
     typedef std::map<uint32_t, TextureUVMapping> MaterialTextureUVMappings;
     MaterialTextureUVMappings matTexUvMappings;
-    const uint32_t maxMat = static_cast<const uint32_t>(mesh->mat.size());
+    const uint32_t maxMat = static_cast<uint32_t>(mesh->mat.size());
     for (uint32_t m = 0; m < maxMat; ++m) {
         // get material by index
         const std::shared_ptr<Material> pMat = mesh->mat[m];
@@ -1340,4 +1288,55 @@ aiNode *BlenderImporter::ConvertNode(const Scene &in, const Object *obj, Convers
     return node.release();
 }
 
+BlenderImporter::StreamOrError BlenderImporter::ParseMagicToken(const std::string &pFile, IOSystem *pIOHandler) const {
+    std::shared_ptr<IOStream> stream(pIOHandler->Open(pFile, "rb"));
+    if (stream == nullptr) {
+        return {{}, {}, "Could not open file for reading"};
+    }
+
+    char magic[8] = { 0 };
+    stream->Read(magic, 7, 1);
+    if (strcmp(magic, Token) == 0) {
+        return {stream, {}, {}};
+    }
+
+    // Check for presence of the gzip header. If yes, assume it is a
+    // compressed blend file and try uncompressing it, else fail. This is to
+    // avoid uncompressing random files which our loader might end up with.
+#ifdef ASSIMP_BUILD_NO_COMPRESSED_BLEND
+    return {{}, {}, "BLENDER magic bytes are missing, is this file compressed (Assimp was built without decompression support)?"};
+#else
+    if (magic[0] != 0x1f || static_cast<uint8_t>(magic[1]) != 0x8b) {
+        return {{}, {}, "BLENDER magic bytes are missing, couldn't find GZIP header either"};
+    }
+
+    LogDebug("Found no BLENDER magic word but a GZIP header, might be a compressed file");
+    if (magic[2] != 8) {
+        return {{}, {}, "Unsupported GZIP compression method"};
+    }
+
+    // http://www.gzip.org/zlib/rfc-gzip.html#header-trailer
+    stream->Seek(0L, aiOrigin_SET);
+    std::shared_ptr<StreamReaderLE> reader = std::shared_ptr<StreamReaderLE>(new StreamReaderLE(stream));
+
+    size_t total = 0;
+    Compression compression;
+    auto uncompressed = std::make_shared<std::vector<char>>();
+    if (compression.open(Compression::Format::Binary, Compression::FlushMode::NoFlush, 16 + Compression::MaxWBits)) {
+        total = compression.decompress((unsigned char *)reader->GetPtr(), reader->GetRemainingSize(), *uncompressed);
+        compression.close();
+    }
+
+    // replace the input stream with a memory stream
+    stream = std::make_shared<MemoryIOStream>(reinterpret_cast<uint8_t *>(uncompressed->data()), total);
+
+    // .. and retry
+    stream->Read(magic, 7, 1);
+    if (strcmp(magic, Token) == 0) {
+        return {stream, uncompressed, {}};
+    }
+    return {{}, {}, "Found no BLENDER magic word in decompressed GZIP file"};
+#endif
+}
+
 #endif // ASSIMP_BUILD_NO_BLEND_IMPORTER

code/AssetLib/Blender/BlenderLoader.h

@@ -2,8 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2020, assimp team
-
+Copyright (c) 2006-2024, assimp team
 
 All rights reserved.
 
@@ -43,6 +42,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 /** @file  BlenderLoader.h
  *  @brief Declaration of the Blender 3D (*.blend) importer class.
  */
+#pragma once
 #ifndef INCLUDED_AI_BLEND_LOADER_H
 #define INCLUDED_AI_BLEND_LOADER_H
 
@@ -56,183 +56,154 @@ struct aiLight;
 struct aiCamera;
 struct aiMaterial;
 
-namespace Assimp    {
+namespace Assimp {
 
-    // TinyFormatter.h
-    namespace Formatter {
-        template <typename T,typename TR, typename A> class basic_formatter;
-        typedef class basic_formatter< char, std::char_traits<char>, std::allocator<char> > format;
-    }
+// TinyFormatter.h
+namespace Formatter {
 
-    // BlenderDNA.h
-    namespace Blender {
-        class  FileDatabase;
-        struct ElemBase;
-    }
+template <typename T, typename TR, typename A>
+class basic_formatter;
 
-    // BlenderScene.h
-    namespace Blender {
-        struct Scene;
-        struct Object;
-        struct Mesh;
-        struct Camera;
-        struct Lamp;
-        struct MTex;
-        struct Image;
-        struct Material;
-    }
+typedef class basic_formatter<char, std::char_traits<char>, std::allocator<char>> format;
 
-    // BlenderIntermediate.h
-    namespace Blender {
-        struct ConversionData;
-        template <template <typename,typename> class TCLASS, typename T> struct TempArray;
-    }
+} // namespace Formatter
 
-    // BlenderModifier.h
-    namespace Blender {
-        class BlenderModifierShowcase;
-        class BlenderModifier;
-    }
+// BlenderDNA.h
+namespace Blender {
+class FileDatabase;
+struct ElemBase;
+} // namespace Blender
 
+// BlenderScene.h
+namespace Blender {
+struct Scene;
+struct Object;
+struct Collection;
+struct Mesh;
+struct Camera;
+struct Lamp;
+struct MTex;
+struct Image;
+struct Material;
+} // namespace Blender
 
+// BlenderIntermediate.h
+namespace Blender {
+struct ConversionData;
+template <template <typename, typename> class TCLASS, typename T>
+struct TempArray;
+} // namespace Blender
+
+// BlenderModifier.h
+namespace Blender {
+class BlenderModifierShowcase;
+class BlenderModifier;
+} // namespace Blender
 
 // -------------------------------------------------------------------------------------------
 /** Load blenders official binary format. The actual file structure (the `DNA` how they
  *  call it is outsourced to BlenderDNA.cpp/BlenderDNA.h. This class only performs the
  *  conversion from intermediate format to aiScene. */
 // -------------------------------------------------------------------------------------------
-class BlenderImporter : public BaseImporter, public LogFunctions<BlenderImporter>
-{
+class BlenderImporter : public BaseImporter, public LogFunctions<BlenderImporter> {
 public:
     BlenderImporter();
-    ~BlenderImporter();
-
-public:
-
-    // --------------------
-    bool CanRead( const std::string& pFile,
-        IOSystem* pIOHandler,
-        bool checkSig
-    ) const;
+    ~BlenderImporter() override;
+    bool CanRead(const std::string &pFile, IOSystem *pIOHandler, bool checkSig) const override;
 
 protected:
-
-    // --------------------
-    const aiImporterDesc* GetInfo () const;
-
-    // --------------------
-    void GetExtensionList(std::set<std::string>& app);
-
-    // --------------------
-    void SetupProperties(const Importer* pImp);
-
-    // --------------------
-    void InternReadFile( const std::string& pFile,
-        aiScene* pScene,
-        IOSystem* pIOHandler
-    );
-
-    // --------------------
-    void ParseBlendFile(Blender::FileDatabase& out,
-        std::shared_ptr<IOStream> stream
-    );
-
-    // --------------------
-    void ExtractScene(Blender::Scene& out,
-        const Blender::FileDatabase& file
-    );
-
-    // --------------------
-    void ConvertBlendFile(aiScene* out,
-        const Blender::Scene& in,
-        const Blender::FileDatabase& file
-    );
+    const aiImporterDesc *GetInfo() const override;
+    void SetupProperties(const Importer *pImp) override;
+    void InternReadFile(const std::string &pFile, aiScene *pScene, IOSystem *pIOHandler) override;
+    void ParseBlendFile(Blender::FileDatabase &out, std::shared_ptr<IOStream> stream);
+    void ExtractScene(Blender::Scene &out, const Blender::FileDatabase &file);
+    void ParseSubCollection(const Blender::Scene &in, aiNode *root, const std::shared_ptr<Blender::Collection>& collection, Blender::ConversionData &conv_data);
+    void ConvertBlendFile(aiScene *out, const Blender::Scene &in, const Blender::FileDatabase &file);
 
 private:
+    aiNode *ConvertNode(const Blender::Scene &in,
+            const Blender::Object *obj,
+            Blender::ConversionData &conv_info,
+            const aiMatrix4x4 &parentTransform);
 
     // --------------------
-    aiNode* ConvertNode(const Blender::Scene& in,
-        const Blender::Object* obj,
-        Blender::ConversionData& conv_info,
-        const aiMatrix4x4& parentTransform
-    );
+    void ConvertMesh(const Blender::Scene &in,
+            const Blender::Object *obj,
+            const Blender::Mesh *mesh,
+            Blender::ConversionData &conv_data,
+            Blender::TempArray<std::vector, aiMesh> &temp);
 
     // --------------------
-    void ConvertMesh(const Blender::Scene& in,
-        const Blender::Object* obj,
-        const Blender::Mesh* mesh,
-        Blender::ConversionData& conv_data,
-        Blender::TempArray<std::vector,aiMesh>& temp
-    );
+    aiLight *ConvertLight(const Blender::Scene &in,
+            const Blender::Object *obj,
+            const Blender::Lamp *mesh,
+            Blender::ConversionData &conv_data);
 
     // --------------------
-    aiLight* ConvertLight(const Blender::Scene& in,
-        const Blender::Object* obj,
-        const Blender::Lamp* mesh,
-        Blender::ConversionData& conv_data
-    );
-
-    // --------------------
-    aiCamera* ConvertCamera(const Blender::Scene& in,
-        const Blender::Object* obj,
-        const Blender::Camera* mesh,
-        Blender::ConversionData& conv_data
-    );
+    aiCamera *ConvertCamera(const Blender::Scene &in,
+            const Blender::Object *obj,
+            const Blender::Camera *mesh,
+            Blender::ConversionData &conv_data);
 
     // --------------------
     void BuildDefaultMaterial(
-        Blender::ConversionData& conv_data
-    );
+            Blender::ConversionData &conv_data);
 
+    // --------------------
     void AddBlendParams(
-        aiMaterial* result,
-        const Blender::Material* source
-    );
+            aiMaterial *result,
+            const Blender::Material *source);
 
+    // --------------------
     void BuildMaterials(
-        Blender::ConversionData& conv_data
-    );
+            Blender::ConversionData &conv_data);
 
     // --------------------
     void ResolveTexture(
-        aiMaterial* out,
-        const Blender::Material* mat,
-        const Blender::MTex* tex,
-        Blender::ConversionData& conv_data
-    );
+            aiMaterial *out,
+            const Blender::Material *mat,
+            const Blender::MTex *tex,
+            Blender::ConversionData &conv_data);
 
     // --------------------
     void ResolveImage(
-        aiMaterial* out,
-        const Blender::Material* mat,
-        const Blender::MTex* tex,
-        const Blender::Image* img,
-        Blender::ConversionData& conv_data
-    );
+            aiMaterial *out,
+            const Blender::Material *mat,
+            const Blender::MTex *tex,
+            const Blender::Image *img,
+            Blender::ConversionData &conv_data);
 
+    // --------------------
     void AddSentinelTexture(
-        aiMaterial* out,
-        const Blender::Material* mat,
-        const Blender::MTex* tex,
-        Blender::ConversionData& conv_data
-    );
+            aiMaterial *out,
+            const Blender::Material *mat,
+            const Blender::MTex *tex,
+            Blender::ConversionData &conv_data);
+
+    // TODO: Move to a std::variant, once c++17 is supported.
+    struct StreamOrError {
+        std::shared_ptr<IOStream> stream;
+        std::shared_ptr<std::vector<char>> input;
+        std::string error;
+    };
+
+    // Returns either a stream (and optional input data for the stream) or
+    // an error if it can't parse the magic token.
+    StreamOrError ParseMagicToken(
+            const std::string &pFile,
+            IOSystem *pIOHandler) const;
 
 private: // static stuff, mostly logging and error reporting.
+    // --------------------
+    static void CheckActualType(const Blender::ElemBase *dt,
+            const char *check);
 
     // --------------------
-    static void CheckActualType(const Blender::ElemBase* dt,
-        const char* check
-    );
-
-    // --------------------
-    static void NotSupportedObjectType(const Blender::Object* obj,
-        const char* type
-    );
-
+    static void NotSupportedObjectType(const Blender::Object *obj,
+            const char *type);
 
 private:
-
-    Blender::BlenderModifierShowcase* modifier_cache;
+    Blender::BlenderModifierShowcase *modifier_cache;
 
 }; // !class BlenderImporter
 

code/AssetLib/Blender/BlenderModifier.cpp

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2020, assimp team
+Copyright (c) 2006-2024, assimp team
 
 
 All rights reserved.
@@ -71,10 +71,6 @@ static const fpCreateModifier creators[] = {
     nullptr // sentinel
 };
 
-// ------------------------------------------------------------------------------------------------
-struct SharedModifierData : ElemBase {
-    ModifierData modifier;
-};
 
 // ------------------------------------------------------------------------------------------------
 void BlenderModifierShowcase::ApplyModifiers(aiNode &out, ConversionData &conv_data, const Scene &in, const Object &orig_object) {
@@ -90,7 +86,7 @@ void BlenderModifierShowcase::ApplyModifiers(aiNode &out, ConversionData &conv_d
 
         const Structure *s = conv_data.db.dna.Get(cur->dna_type);
         if (!s) {
-            ASSIMP_LOG_WARN_F("BlendModifier: could not resolve DNA name: ", cur->dna_type);
+            ASSIMP_LOG_WARN("BlendModifier: could not resolve DNA name: ", cur->dna_type);
             continue;
         }
 
@@ -132,7 +128,7 @@ void BlenderModifierShowcase::ApplyModifiers(aiNode &out, ConversionData &conv_d
             }
         }
         if (curgod) {
-            ASSIMP_LOG_WARN_F("Couldn't find a handler for modifier: ", dat.name);
+            ASSIMP_LOG_WARN("Couldn't find a handler for modifier: ", dat.name);
         }
     }
 
@@ -140,7 +136,7 @@ void BlenderModifierShowcase::ApplyModifiers(aiNode &out, ConversionData &conv_d
     // object, we still can't say whether our modifier implementations were
     // able to fully do their job.
     if (ful) {
-        ASSIMP_LOG_DEBUG_F("BlendModifier: found handlers for ", cnt, " of ", ful, " modifiers on `", orig_object.id.name,
+        ASSIMP_LOG_DEBUG("BlendModifier: found handlers for ", cnt, " of ", ful, " modifiers on `", orig_object.id.name,
                 "`, check log messages above for errors");
     }
 }
@@ -157,6 +153,7 @@ void BlenderModifier_Mirror ::DoIt(aiNode &out, ConversionData &conv_data, const
     // hijacking the ABI, see the big note in BlenderModifierShowcase::ApplyModifiers()
     const MirrorModifierData &mir = static_cast<const MirrorModifierData &>(orig_modifier);
     ai_assert(mir.modifier.type == ModifierData::eModifierType_Mirror);
+    std::shared_ptr<Object> mirror_ob = mir.mirror_ob.lock();
 
     conv_data.meshes->reserve(conv_data.meshes->size() + out.mNumMeshes);
 
@@ -171,8 +168,8 @@ void BlenderModifier_Mirror ::DoIt(aiNode &out, ConversionData &conv_data, const
         const float ys = mir.flag & MirrorModifierData::Flags_AXIS_Y ? -1.f : 1.f;
         const float zs = mir.flag & MirrorModifierData::Flags_AXIS_Z ? -1.f : 1.f;
 
-        if (mir.mirror_ob) {
-            const aiVector3D center(mir.mirror_ob->obmat[3][0], mir.mirror_ob->obmat[3][1], mir.mirror_ob->obmat[3][2]);
+        if (mirror_ob) {
+            const aiVector3D center(mirror_ob->obmat[3][0], mirror_ob->obmat[3][1], mirror_ob->obmat[3][2]);
             for (unsigned int j = 0; j < mesh->mNumVertices; ++j) {
                 aiVector3D &v = mesh->mVertices[j];
 
@@ -248,7 +245,7 @@ void BlenderModifier_Mirror ::DoIt(aiNode &out, ConversionData &conv_data, const
     out.mMeshes = nind;
     out.mNumMeshes *= 2;
 
-    ASSIMP_LOG_INFO_F("BlendModifier: Applied the `Mirror` modifier to `",
+    ASSIMP_LOG_INFO("BlendModifier: Applied the `Mirror` modifier to `",
             orig_object.id.name, "`");
 }
 
@@ -277,7 +274,7 @@ void BlenderModifier_Subdivision ::DoIt(aiNode &out, ConversionData &conv_data,
         break;
 
     default:
-        ASSIMP_LOG_WARN_F("BlendModifier: Unrecognized subdivision algorithm: ", mir.subdivType);
+        ASSIMP_LOG_WARN("BlendModifier: Unrecognized subdivision algorithm: ", mir.subdivType);
         return;
     };
 
@@ -286,13 +283,18 @@ void BlenderModifier_Subdivision ::DoIt(aiNode &out, ConversionData &conv_data,
     if (conv_data.meshes->empty()) {
         return;
     }
+    const size_t meshIndex = conv_data.meshes->size() - out.mNumMeshes;
+    if (meshIndex >= conv_data.meshes->size()) {
+        ASSIMP_LOG_ERROR("Invalid index detected.");
+        return;
+    }
     aiMesh **const meshes = &conv_data.meshes[conv_data.meshes->size() - out.mNumMeshes];
     std::unique_ptr<aiMesh *[]> tempmeshes(new aiMesh *[out.mNumMeshes]());
 
     subd->Subdivide(meshes, out.mNumMeshes, tempmeshes.get(), std::max(mir.renderLevels, mir.levels), true);
     std::copy(tempmeshes.get(), tempmeshes.get() + out.mNumMeshes, meshes);
 
-    ASSIMP_LOG_INFO_F("BlendModifier: Applied the `Subdivision` modifier to `",
+    ASSIMP_LOG_INFO("BlendModifier: Applied the `Subdivision` modifier to `",
             orig_object.id.name, "`");
 }
 

code/AssetLib/Blender/BlenderModifier.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2020, assimp team
+Copyright (c) 2006-2024, assimp team
 
 
 All rights reserved.
@@ -52,9 +52,9 @@ namespace Assimp {
 namespace Blender {
 
 // -------------------------------------------------------------------------------------------
-/** 
+/**
  *  Dummy base class for all blender modifiers. Modifiers are reused between imports, so
- *  they should be stateless and not try to cache model data. 
+ *  they should be stateless and not try to cache model data.
  */
 // -------------------------------------------------------------------------------------------
 class BlenderModifier {
@@ -62,12 +62,10 @@ public:
     /**
      *  The class destructor, virtual.
      */
-    virtual ~BlenderModifier() {
-        // empty
-    }
+    virtual ~BlenderModifier() = default;
 
     // --------------------
-    /** 
+    /**
      *  Check if *this* modifier is active, given a ModifierData& block.
      */
     virtual bool IsActive( const ModifierData& /*modin*/) {
@@ -75,10 +73,10 @@ public:
     }
 
     // --------------------
-    /** 
+    /**
      *  Apply the modifier to a given output node. The original data used
      *  to construct the node is given as well. Not called unless IsActive()
-     *  was called and gave positive response. 
+     *  was called and gave positive response.
      */
     virtual void DoIt(aiNode& /*out*/,
         ConversionData& /*conv_data*/,
@@ -86,14 +84,14 @@ public:
         const Scene& /*in*/,
         const Object& /*orig_object*/
     ) {
-        ASSIMP_LOG_INFO_F("This modifier is not supported, skipping: ",orig_modifier.dna_type );
+        ASSIMP_LOG_INFO("This modifier is not supported, skipping: ",orig_modifier.dna_type );
         return;
     }
 };
 
 // -------------------------------------------------------------------------------------------
-/** 
- *  Manage all known modifiers and instance and apply them if necessary 
+/**
+ *  Manage all known modifiers and instance and apply them if necessary
  */
 // -------------------------------------------------------------------------------------------
 class BlenderModifierShowcase {
@@ -113,8 +111,8 @@ private:
 // MODIFIERS /////////////////////////////////////////////////////////////////////////////////
 
 // -------------------------------------------------------------------------------------------
-/** 
- *  Mirror modifier. Status: implemented. 
+/**
+ *  Mirror modifier. Status: implemented.
  */
 // -------------------------------------------------------------------------------------------
 class BlenderModifier_Mirror : public BlenderModifier {

code/AssetLib/Blender/BlenderScene.cpp

@@ -49,8 +49,8 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "BlenderDNA.h"
 #include "BlenderSceneGen.h"
 
-using namespace Assimp;
-using namespace Assimp::Blender;
+namespace Assimp {
+namespace Blender {
 
 //--------------------------------------------------------------------------------
 template <>
@@ -94,6 +94,48 @@ void Structure ::Convert<Group>(
     db.reader->IncPtr(size);
 }
 
+//--------------------------------------------------------------------------------
+template <>
+void Structure::Convert<CollectionObject>(
+        CollectionObject &dest,
+        const FileDatabase &db) const {
+
+    ReadFieldPtr<ErrorPolicy_Fail>(dest.next, "*next", db);
+    {
+        std::shared_ptr<Object> ob;
+        ReadFieldPtr<ErrorPolicy_Igno>(ob, "*ob", db);
+        dest.ob = ob.get();
+    }
+
+    db.reader->IncPtr(size);
+}
+
+//--------------------------------------------------------------------------------
+template <>
+void Structure::Convert<CollectionChild>(
+        CollectionChild &dest,
+        const FileDatabase &db) const {
+
+    ReadFieldPtr<ErrorPolicy_Fail>(dest.prev, "*prev", db);
+    ReadFieldPtr<ErrorPolicy_Fail>(dest.next, "*next", db);
+    ReadFieldPtr<ErrorPolicy_Igno>(dest.collection, "*collection", db);
+
+    db.reader->IncPtr(size);
+}
+
+//--------------------------------------------------------------------------------
+template <>
+void Structure::Convert<Collection>(
+        Collection &dest,
+        const FileDatabase &db) const {
+
+    ReadField<ErrorPolicy_Fail>(dest.id, "id", db);
+    ReadField<ErrorPolicy_Fail>(dest.gobject, "gobject", db);
+    ReadField<ErrorPolicy_Fail>(dest.children, "children", db);
+
+    db.reader->IncPtr(size);
+}
+
 //--------------------------------------------------------------------------------
 template <>
 void Structure ::Convert<MTex>(
@@ -255,7 +297,7 @@ void Structure ::Convert<Base>(
         const FileDatabase &db) const {
     // note: as per https://github.com/assimp/assimp/issues/128,
     // reading the Object linked list recursively is prone to stack overflow.
-    // This structure converter is therefore an hand-written exception that
+    // This structure converter is therefore a hand-written exception that
     // does it iteratively.
 
     const int initial_pos = db.reader->GetCurrentPos();
@@ -523,7 +565,7 @@ void Structure ::Convert<MVert>(
         const FileDatabase &db) const {
 
     ReadFieldArray<ErrorPolicy_Fail>(dest.co, "co", db);
-    ReadFieldArray<ErrorPolicy_Fail>(dest.no, "no", db);
+    ReadFieldArray<ErrorPolicy_Warn>(dest.no, "no", db);
     ReadField<ErrorPolicy_Igno>(dest.flag, "flag", db);
     //ReadField<ErrorPolicy_Warn>(dest.mat_nr,"mat_nr",db);
     ReadField<ErrorPolicy_Igno>(dest.bweight, "bweight", db);
@@ -578,7 +620,9 @@ void Structure ::Convert<ListBase>(
         const FileDatabase &db) const {
 
     ReadFieldPtr<ErrorPolicy_Igno>(dest.first, "*first", db);
-    ReadFieldPtr<ErrorPolicy_Igno>(dest.last, "*last", db);
+    std::shared_ptr<ElemBase> last;
+    ReadFieldPtr<ErrorPolicy_Igno>(last, "*last", db);
+    dest.last = last;
 
     db.reader->IncPtr(size);
 }
@@ -602,7 +646,9 @@ void Structure ::Convert<ModifierData>(
         const FileDatabase &db) const {
 
     ReadFieldPtr<ErrorPolicy_Warn>(dest.next, "*next", db);
-    ReadFieldPtr<ErrorPolicy_Warn>(dest.prev, "*prev", db);
+    std::shared_ptr<ElemBase> prev;
+    ReadFieldPtr<ErrorPolicy_Warn>(prev, "*prev", db);
+    dest.prev = prev;
     ReadField<ErrorPolicy_Igno>(dest.type, "type", db);
     ReadField<ErrorPolicy_Igno>(dest.mode, "mode", db);
     ReadFieldArray<ErrorPolicy_Igno>(dest.name, "name", db);
@@ -660,6 +706,7 @@ void Structure ::Convert<Scene>(
     ReadFieldPtr<ErrorPolicy_Warn>(dest.camera, "*camera", db);
     ReadFieldPtr<ErrorPolicy_Warn>(dest.world, "*world", db);
     ReadFieldPtr<ErrorPolicy_Warn>(dest.basact, "*basact", db);
+    ReadFieldPtr<ErrorPolicy_Warn>(dest.master_collection, "*master_collection", db);
     ReadField<ErrorPolicy_Igno>(dest.base, "base", db);
 
     db.reader->IncPtr(size);
@@ -725,7 +772,9 @@ void Structure ::Convert<MirrorModifierData>(
     ReadField<ErrorPolicy_Igno>(dest.axis, "axis", db);
     ReadField<ErrorPolicy_Igno>(dest.flag, "flag", db);
     ReadField<ErrorPolicy_Igno>(dest.tolerance, "tolerance", db);
-    ReadFieldPtr<ErrorPolicy_Igno>(dest.mirror_ob, "*mirror_ob", db);
+    std::shared_ptr<Object> mirror_ob;
+    ReadFieldPtr<ErrorPolicy_Igno>(mirror_ob, "*mirror_ob", db);
+    dest.mirror_ob = mirror_ob;
 
     db.reader->IncPtr(size);
 }
@@ -786,9 +835,9 @@ void Structure::Convert<CustomDataLayer>(
     ReadField<ErrorPolicy_Fail>(dest.flag, "flag", db);
     ReadField<ErrorPolicy_Fail>(dest.active, "active", db);
     ReadField<ErrorPolicy_Fail>(dest.active_rnd, "active_rnd", db);
-    ReadField<ErrorPolicy_Fail>(dest.active_clone, "active_clone", db);
-    ReadField<ErrorPolicy_Fail>(dest.active_mask, "active_mask", db);
-    ReadField<ErrorPolicy_Fail>(dest.uid, "uid", db);
+    ReadField<ErrorPolicy_Warn>(dest.active_clone, "active_clone", db);
+    ReadField<ErrorPolicy_Warn>(dest.active_mask, "active_mask", db);
+    ReadField<ErrorPolicy_Warn>(dest.uid, "uid", db);
     ReadFieldArray<ErrorPolicy_Warn>(dest.name, "name", db);
     ReadCustomDataPtr<ErrorPolicy_Fail>(dest.data, dest.type, "*data", db);
 
@@ -833,6 +882,12 @@ void DNA::RegisterConverters() {
     converters["Image"] = DNA::FactoryPair(&Structure::Allocate<Image>, &Structure::Convert<Image>);
     converters["CustomData"] = DNA::FactoryPair(&Structure::Allocate<CustomData>, &Structure::Convert<CustomData>);
     converters["CustomDataLayer"] = DNA::FactoryPair(&Structure::Allocate<CustomDataLayer>, &Structure::Convert<CustomDataLayer>);
+    converters["Collection"] = DNA::FactoryPair(&Structure::Allocate<Collection>, &Structure::Convert<Collection>);
+    converters["CollectionChild"] = DNA::FactoryPair(&Structure::Allocate<CollectionChild>, &Structure::Convert<CollectionChild>);
+    converters["CollectionObject"] = DNA::FactoryPair(&Structure::Allocate<CollectionObject>, &Structure::Convert<CollectionObject>);
 }
 
+} // namespace Blender
+} //namespace Assimp
+
 #endif // ASSIMP_BUILD_NO_BLEND_IMPORTER

code/AssetLib/Blender/BlenderScene.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2020, assimp team
+Copyright (c) 2006-2024, assimp team
 
 
 All rights reserved.
@@ -107,6 +107,7 @@ namespace Blender {
 struct Object;
 struct MTex;
 struct Image;
+struct Collection;
 
 #include <memory>
 
@@ -123,7 +124,7 @@ struct ID : ElemBase {
 // -------------------------------------------------------------------------------
 struct ListBase : ElemBase {
     std::shared_ptr<ElemBase> first;
-    std::shared_ptr<ElemBase> last;
+    std::weak_ptr<ElemBase> last;
 };
 
 // -------------------------------------------------------------------------------
@@ -147,6 +148,26 @@ struct Group : ElemBase {
     std::shared_ptr<GroupObject> gobject;
 };
 
+// -------------------------------------------------------------------------------
+struct CollectionObject : ElemBase {
+    //CollectionObject* prev;
+    std::shared_ptr<CollectionObject> next;
+    Object *ob;
+};
+
+// -------------------------------------------------------------------------------
+struct CollectionChild : ElemBase {
+    std::shared_ptr<CollectionChild> next, prev;
+    std::shared_ptr<Collection> collection;
+};
+
+// -------------------------------------------------------------------------------
+struct Collection : ElemBase {
+    ID id FAIL;
+    ListBase gobject; // CollectionObject
+    ListBase children; // CollectionChild
+};
+
 // -------------------------------------------------------------------------------
 struct World : ElemBase {
     ID id FAIL;
@@ -155,13 +176,13 @@ struct World : ElemBase {
 // -------------------------------------------------------------------------------
 struct MVert : ElemBase {
     float co[3] FAIL;
-    float no[3] FAIL; // readed as short and divided through / 32767.f
+    float no[3] FAIL; // read as short and divided through / 32767.f
     char flag;
     int mat_nr WARN;
     int bweight;
 
     MVert() :
-            ElemBase(), flag(0), mat_nr(0), bweight(0) {}
+            flag(0), mat_nr(0), bweight(0) {}
 };
 
 // -------------------------------------------------------------------------------
@@ -228,7 +249,10 @@ struct TFace : ElemBase {
 // -------------------------------------------------------------------------------
 struct MTFace : ElemBase {
     MTFace() :
-            flag(0), mode(0), tile(0), unwrap(0) {
+            flag(0),
+            mode(0),
+            tile(0),
+            unwrap(0) {
     }
 
     float uv[4][2] FAIL;
@@ -393,7 +417,6 @@ struct CustomDataLayer : ElemBase {
     std::shared_ptr<ElemBase> data; // must be converted to real type according type member
 
     CustomDataLayer() :
-            ElemBase(),
             type(0),
             offset(0),
             flag(0),
@@ -618,14 +641,21 @@ struct ModifierData : ElemBase {
     };
 
     std::shared_ptr<ElemBase> next WARN;
-    std::shared_ptr<ElemBase> prev WARN;
+    std::weak_ptr<ElemBase> prev WARN;
 
     int type, mode;
     char name[32];
 };
 
+
+// ------------------------------------------------------------------------------------------------
+struct SharedModifierData : ElemBase {
+    ModifierData modifier;
+};
+
+
 // -------------------------------------------------------------------------------
-struct SubsurfModifierData : ElemBase {
+struct SubsurfModifierData : SharedModifierData {
 
     enum Type {
 
@@ -638,7 +668,6 @@ struct SubsurfModifierData : ElemBase {
         FLAGS_SubsurfUV = 1 << 3
     };
 
-    ModifierData modifier FAIL;
     short subdivType WARN;
     short levels FAIL;
     short renderLevels;
@@ -646,7 +675,7 @@ struct SubsurfModifierData : ElemBase {
 };
 
 // -------------------------------------------------------------------------------
-struct MirrorModifierData : ElemBase {
+struct MirrorModifierData : SharedModifierData {
 
     enum Flags {
         Flags_CLIPPING = 1 << 0,
@@ -658,11 +687,9 @@ struct MirrorModifierData : ElemBase {
         Flags_VGROUP = 1 << 6
     };
 
-    ModifierData modifier FAIL;
-
     short axis, flag;
     float tolerance;
-    std::shared_ptr<Object> mirror_ob;
+    std::weak_ptr<Object> mirror_ob;
 };
 
 // -------------------------------------------------------------------------------
@@ -701,7 +728,7 @@ struct Object : ElemBase {
     ListBase modifiers;
 
     Object() :
-            ElemBase(), type(Type_EMPTY), parent(nullptr), track(), proxy(), proxy_from(), data() {
+            type(Type_EMPTY), parent(nullptr) {
         // empty
     }
 };
@@ -713,8 +740,7 @@ struct Base : ElemBase {
     std::shared_ptr<Object> object WARN;
 
     Base() :
-            ElemBase(), prev(nullptr), next(), object() {
-        // empty
+            prev(nullptr) {
         // empty
     }
 };
@@ -726,13 +752,11 @@ struct Scene : ElemBase {
     std::shared_ptr<Object> camera WARN;
     std::shared_ptr<World> world WARN;
     std::shared_ptr<Base> basact WARN;
+    std::shared_ptr<Collection> master_collection WARN;
 
     ListBase base;
 
-    Scene() :
-            ElemBase(), camera(), world(), basact() {
-        // empty
-    }
+    Scene() = default;
 };
 
 // -------------------------------------------------------------------------------
@@ -762,10 +786,7 @@ struct Image : ElemBase {
 
     short gen_x, gen_y, gen_type;
 
-    Image() :
-            ElemBase() {
-        // empty
-    }
+    Image() = default;
 };
 
 // -------------------------------------------------------------------------------
@@ -855,7 +876,7 @@ struct Tex : ElemBase {
     //char use_nodes;
 
     Tex() :
-            ElemBase(), imaflag(ImageFlags_INTERPOL), type(Type_CLOUDS), ima() {
+            imaflag(ImageFlags_INTERPOL), type(Type_CLOUDS) {
         // empty
     }
 };
@@ -947,10 +968,7 @@ struct MTex : ElemBase {
     //float shadowfac;
     //float zenupfac, zendownfac, blendfac;
 
-    MTex() :
-            ElemBase() {
-        // empty
-    }
+    MTex() = default;
 };
 
 } // namespace Blender