Merge branch 'master' into kimkulling/fix_invalid_delete_issue-5307

.github/workflows/ccpp.yml

@@ -7,139 +7,14 @@ on:
     branches: [ master ]
 
 permissions:
-  contents: write # to fetch code (actions/checkout),and release
+  contents: read # to fetch code (actions/checkout)
 
 jobs:
-  build:
+  job:
     name: ${{ matrix.name }}-build-and-test
     runs-on: ${{ matrix.os }}
     strategy:
       fail-fast: false
-      matrix:
-        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-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
-
-    steps:
-    - 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
-    
-    - name: Set Compiler Environment
-      uses: lukka/set-shell-env@v1
-      with:
-        CXX: ${{ matrix.cxx }}
-        CC: ${{ matrix.cc }}
-
-    - name: Cache DX SDK
-      id: dxcache
-      if: contains(matrix.name, 'windows')
-      uses: actions/cache@v4
-      with:
-        path: '${{ github.workspace }}/DX_SDK'
-        key: ${{ runner.os }}-DX_SDK
-        restore-keys: |
-          ${{ runner.os }}-DX_SDK
-
-    - name: Download DXSetup
-      if: contains(matrix.name, 'windows') && steps.dxcache.outputs.cache-hit != 'true'
-      run: |
-        curl -s -o DXSDK_Jun10.exe --location https://download.microsoft.com/download/A/E/7/AE743F1F-632B-4809-87A9-AA1BB3458E31/DXSDK_Jun10.exe
-        cmd.exe /c start /wait .\DXSDK_Jun10.exe /U /O /F /S /P "${{ github.workspace }}\DX_SDK"
-
-    - name: Set Windows specific CMake arguments
-      if: 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" >> $GITHUB_OUTPUT
-    
-    - name: Set Hunter specific CMake arguments
-      if: contains(matrix.name, 'hunter')
-      id: hunter_extra_cmake_args
-      run: echo "args=-DBUILD_SHARED_LIBS=OFF -DASSIMP_HUNTER_ENABLED=ON -DCMAKE_TOOLCHAIN_FILE=${{ github.workspace }}/cmake/polly/${{ matrix.toolchain }}.cmake" >> $GITHUB_OUTPUT
-
-    - name: configure and build
-      uses: lukka/run-cmake@v3
-      env:
-        DXSDK_DIR: '${{ 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: 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 ${{ steps.hunter_extra_test_args.outputs.args }}
-      shell: bash
-
-    - uses: actions/upload-artifact@v4
-      if: matrix.name == 'windows-msvc'
-      with:
-        name: 'assimp-bins-${{ 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.
@@ -170,23 +45,84 @@ jobs:
             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
+    - uses: actions/checkout@v4
-        with:
+      with:
-          name: create-release
+          submodules: true
-      - 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
           
+    - uses: lukka/get-cmake@latest
+    
+    - uses: ilammy/msvc-dev-cmd@v1
+    
+    - name: Set Compiler Environment
+      if: "!endsWith(matrix.name, 'hunter')"
+      uses: lukka/set-shell-env@v1
+      with:
+        CXX: ${{ matrix.cxx }}
+        CC: ${{ matrix.cc }}
+
+    - name: Set Compiler Environment for Hunter on Windows
+      if: startsWith(matrix.name, 'windows') && endsWith(matrix.name, 'hunter')
+      uses: lukka/set-shell-env@v1
+      with:
+        VS160COMNTOOLS: C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise\Common7\Tools
+
+    - name: Checkout Hunter toolchains
+      if: endsWith(matrix.name, 'hunter')
+      uses: actions/checkout@v4
+      with:
+        repository: cpp-pm/polly
+        path: cmake/polly
+
+    - name: Cache DX SDK
+      id: dxcache
+      if: contains(matrix.name, 'windows')
+      uses: actions/cache@v3
+      with:
+        path: '${{ github.workspace }}/DX_SDK'
+        key: ${{ runner.os }}-DX_SDK
+        restore-keys: |
+          ${{ runner.os }}-DX_SDK
+
+    - name: Download DXSetup
+      if: contains(matrix.name, 'windows') && steps.dxcache.outputs.cache-hit != 'true'
+      run: |
+        curl -s -o DXSDK_Jun10.exe --location https://download.microsoft.com/download/A/E/7/AE743F1F-632B-4809-87A9-AA1BB3458E31/DXSDK_Jun10.exe
+        cmd.exe /c start /wait .\DXSDK_Jun10.exe /U /O /F /S /P "${{ github.workspace }}\DX_SDK"
+
+    - name: Set Windows specific CMake arguments
+      if: 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 -DASSIMP_BUILD_ZLIB=1"
+    
+    - name: Set Hunter specific CMake arguments
+      if: contains(matrix.name, 'hunter')
+      id: hunter_extra_cmake_args
+      run: echo "::set-output name=args::-DBUILD_SHARED_LIBS=OFF -DASSIMP_HUNTER_ENABLED=ON -DCMAKE_TOOLCHAIN_FILE=${{ github.workspace }}/cmake/polly/${{ matrix.toolchain }}.cmake"
+
+    - 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: Exclude certain tests in Hunter specific builds
+      if: contains(matrix.name, 'hunter')
+      id: hunter_extra_test_args
+      run: echo "::set-output name=args::--gtest_filter=-utOpenGEXImportExport.Importissue1340_EmptyCameraObject:utColladaZaeImportExport.importBlenFromFileTest"
+
+    - name: test
+      run: cd build/bin && ./unit ${{ steps.hunter_extra_test_args.outputs.args }}
+      shell: bash
+
+    - uses: actions/upload-artifact@v3
+      if: matrix.name == 'windows-msvc'
+      with:
+        name: 'assimp-bins-${{ matrix.name }}-${{ github.sha }}'
+        path: build/bin

.github/workflows/cifuzz.yml

@@ -19,7 +19,7 @@ jobs:
         dry-run: false
         language: c++
     - name: Upload Crash
-      uses: actions/upload-artifact@v4
+      uses: actions/upload-artifact@v3
       if: failure() && steps.build.outcome == 'success'
       with:
         name: artifacts

.github/workflows/inno_setup

@@ -1,51 +0,0 @@
-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+

.gitignore

@@ -120,7 +120,3 @@ 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

Build.md

@@ -43,7 +43,6 @@ 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
 

CMakeLists.txt

@@ -1,6 +1,6 @@
 # Open Asset Import Library (assimp)
 # ----------------------------------------------------------------------
-# Copyright (c) 2006-2024, assimp team
+# Copyright (c) 2006-2023, assimp team
 #
 # All rights reserved.
 #
@@ -38,25 +38,9 @@ SET(CMAKE_POLICY_DEFAULT_CMP0012 NEW)
 SET(CMAKE_POLICY_DEFAULT_CMP0074 NEW)
 SET(CMAKE_POLICY_DEFAULT_CMP0092 NEW)
 
-CMAKE_MINIMUM_REQUIRED( VERSION 3.22 )
+CMAKE_MINIMUM_REQUIRED( VERSION 3.10 )
 
-# Experimental USD importer: disabled, need to opt-in
+# Disabled importers: m3d for 5.1
-# 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
@@ -65,13 +49,13 @@ option(ASSIMP_HUNTER_ENABLED "Enable Hunter package manager support" OFF)
 IF(ASSIMP_HUNTER_ENABLED)
   include("cmake-modules/HunterGate.cmake")
   HunterGate(
-    URL "https://github.com/cpp-pm/hunter/archive/v0.25.5.tar.gz"
+    URL "https://github.com/cpp-pm/hunter/archive/v0.24.18.tar.gz"
-    SHA1 "a20151e4c0740ee7d0f9994476856d813cdead29"
+    SHA1 "1292e4d661e1770d6d6ca08c12c07cf34a0bf718"
   )
   add_definitions(-DASSIMP_USE_HUNTER)
 ENDIF()
 
-PROJECT(Assimp VERSION 5.4.3)
+PROJECT(Assimp VERSION 5.3.0)
 
 # All supported options ###############################################
 
@@ -147,35 +131,35 @@ OPTION ( ASSIMP_IGNORE_GIT_HASH
 
 IF (WIN32)
   OPTION( ASSIMP_BUILD_ZLIB
-    "Build your zlib"
+    "Build your own zlib"
     ON
   )
 ELSE()
   OPTION( ASSIMP_BUILD_ZLIB
-    "Build your zlib"
+    "Build your own zlib"
-    OFF
+    ON
   )
 ENDIF()
 
 IF (WIN32)
-  # Use a subset of Windows.h
+  # Use 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."
+      "Install MSVC debug files."
       ON )
     IF(NOT (MSVC_VERSION LESS 1900))
-      # Multibyte character set has been deprecated since at least MSVC2015 (possibly earlier)
+      # Multibyte character set is 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
+    # Link statically against c/c++ lib to avoid missing redistriburable 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
+    # The CMAKE_CXX_FLAGS vars can be overriden by some Visual Studio generators, so we use an alternative
     # global method here:
     if (${USE_STATIC_CRT})
       add_compile_options(
@@ -265,9 +249,9 @@ 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
+  # 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 ${OPERATING_SYSTEM} MATCHES "Android")
-    IF ( CMAKE_SIZEOF_VOID_P EQUAL 4) # only necessary for 32-bit Linux
+    IF ( CMAKE_SIZEOF_VOID_P EQUAL 4) # only necessary for 32-bit linux
       ADD_DEFINITIONS(-D_FILE_OFFSET_BITS=64 )
     ENDIF()
   ENDIF()
@@ -305,18 +289,11 @@ ELSEIF(MSVC)
   IF(MSVC12)
     ADD_COMPILE_OPTIONS(/wd4351)	
   ENDIF()
-  # supress warning for double to float conversion if Double precision is activated
+  # supress warning for double to float conversion if Double precission is activated
   ADD_COMPILE_OPTIONS(/wd4244) 
   SET(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} /D_DEBUG /Zi /Od")
-  # Allow user to disable PDBs
+  SET(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE}")
-  if(ASSIMP_INSTALL_PDB)
+  SET(CMAKE_SHARED_LINKER_FLAGS_RELEASE "${CMAKE_SHARED_LINKER_FLAGS_RELEASE} /DEBUG:FULL /PDBALTPATH:%_PDB% /OPT:REF /OPT:ICF")
-    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_POSITION_INDEPENDENT_CODE ON)
@@ -334,9 +311,9 @@ ELSEIF( MINGW )
     SET(CMAKE_C_FLAGS "-fPIC ${CMAKE_C_FLAGS}")
   ENDIF()
     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}")
+      SET(CMAKE_CXX_FLAGS "-fvisibility=hidden -fno-strict-aliasing -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}")
+      SET(CMAKE_CXX_FLAGS "-fvisibility=hidden -fno-strict-aliasing -Wall -Wno-long-long -Wa,-mbig-obj -O3 ${CMAKE_CXX_FLAGS}")
     ENDIF()
     SET(CMAKE_C_FLAGS "-fno-strict-aliasing ${CMAKE_C_FLAGS}")
 ENDIF()
@@ -475,20 +452,18 @@ configure_package_config_file(
     INSTALL_DESTINATION "${CONFIG_INSTALL_DIR}"
 )
 
-if(ASSIMP_INSTALL)
+install(
-  install(
+    FILES "${PROJECT_CONFIG}" "${VERSION_CONFIG}"
-      FILES "${PROJECT_CONFIG}" "${VERSION_CONFIG}"
+    DESTINATION "${CONFIG_INSTALL_DIR}"
-      DESTINATION "${CONFIG_INSTALL_DIR}"
+    COMPONENT ${LIBASSIMP-DEV_COMPONENT}
-      COMPONENT ${LIBASSIMP-DEV_COMPONENT}
+)
-  )
 
-  install(
+install(
-      EXPORT "${TARGETS_EXPORT_NAME}"
+    EXPORT "${TARGETS_EXPORT_NAME}"
-      NAMESPACE "${NAMESPACE}"
+    NAMESPACE "${NAMESPACE}"
-      DESTINATION "${CONFIG_INSTALL_DIR}"
+    DESTINATION "${CONFIG_INSTALL_DIR}"
-      COMPONENT ${LIBASSIMP-DEV_COMPONENT}
+    COMPONENT ${LIBASSIMP-DEV_COMPONENT}
-  )
+)
-endif()
 
 IF( ASSIMP_BUILD_DOCS )
   ADD_SUBDIRECTORY(doc)
@@ -506,7 +481,7 @@ IF(ASSIMP_HUNTER_ENABLED)
   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)
+  IF( ZLIB_FOUND )
     INSTALL( TARGETS zlib zlibstatic
         EXPORT "${TARGETS_EXPORT_NAME}")
   ENDIF()
@@ -588,9 +563,9 @@ SET ( ASSIMP_BUILD_NONFREE_C4D_IMPORTER OFF CACHE BOOL
 )
 
 IF (ASSIMP_BUILD_NONFREE_C4D_IMPORTER)
-  SET(C4D_INCLUDES "${CMAKE_CURRENT_SOURCE_DIR}/contrib/Cineware/includes")
+  IF ( MSVC )
+    SET(C4D_INCLUDES "${CMAKE_CURRENT_SOURCE_DIR}/contrib/Cineware/includes")
 
-  IF (WIN32)
     # pick the correct prebuilt library
     IF(MSVC143)
       SET(C4D_LIB_POSTFIX "_2022")
@@ -608,7 +583,7 @@ IF (ASSIMP_BUILD_NONFREE_C4D_IMPORTER)
       SET(C4D_LIB_POSTFIX "_2010")
     ELSE()
       MESSAGE( FATAL_ERROR
-        "C4D for Windows is currently only supported with MSVC 10, 11, 12, 14, 14.2, 14.3"
+        "C4D is currently only supported with MSVC 10, 11, 12, 14, 14.2, 14.3"
       )
     ENDIF()
 
@@ -626,30 +601,15 @@ IF (ASSIMP_BUILD_NONFREE_C4D_IMPORTER)
     # 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 and macOS with Cineware SDK installed in contrib/Cineware"
+      "C4D is currently only available on Windows with Cineware SDK installed in contrib/Cineware"
     )
   ENDIF ()
 ELSE ()
   ADD_DEFINITIONS( -DASSIMP_BUILD_NO_C4D_IMPORTER )
 ENDIF ()
 
-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")
@@ -659,7 +619,7 @@ ELSE()
   IF ( ASSIMP_BUILD_DRACO )
     # Primarily for glTF v2
     # Enable Draco glTF feature set
-    set(DRACO_GLTF_BITSTREAM ON CACHE BOOL "" FORCE)
+    set(DRACO_GLTF ON CACHE BOOL "" FORCE)
     # Disable unnecessary or omitted components
     set(DRACO_JS_GLUE OFF CACHE BOOL "" FORCE)
     set(DRACO_WASM OFF CACHE BOOL "" FORCE)
@@ -685,29 +645,22 @@ ELSE()
           "-Wno-sign-compare"
           "-Wno-unused-local-typedefs"
         )
-
+        # Draco 1.4.1 does not explicitly export any symbols under GCC/clang
-        if(NOT ASSIMP_BUILD_DRACO_STATIC)
+        list(APPEND DRACO_CXX_FLAGS
-          # Draco 1.4.1 does not explicitly export any symbols under GCC/clang
+          "-fvisibility=default"
-          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)
+        if(BUILD_SHARED_LIBS)
-          set(draco_LIBRARIES "draco_static")
-        else()
           set(draco_LIBRARIES "draco_shared")
+        else()
+          set(draco_LIBRARIES "draco_static")
         endif()
       endif()
 
@@ -730,17 +683,15 @@ ELSE()
       set(draco_INCLUDE_DIRS "${CMAKE_CURRENT_SOURCE_DIR}/contrib/draco/src")
 
       # This is probably wrong
-      if (ASSIMP_INSTALL)
+      INSTALL( TARGETS ${draco_LIBRARIES}
-        INSTALL( TARGETS ${draco_LIBRARIES}
+        EXPORT "${TARGETS_EXPORT_NAME}"
-          EXPORT "${TARGETS_EXPORT_NAME}"
+        LIBRARY DESTINATION ${ASSIMP_LIB_INSTALL_DIR}
-          LIBRARY DESTINATION ${ASSIMP_LIB_INSTALL_DIR}
+        ARCHIVE DESTINATION ${ASSIMP_LIB_INSTALL_DIR}
-          ARCHIVE DESTINATION ${ASSIMP_LIB_INSTALL_DIR}
+        RUNTIME DESTINATION ${ASSIMP_BIN_INSTALL_DIR}
-          RUNTIME DESTINATION ${ASSIMP_BIN_INSTALL_DIR}
+        FRAMEWORK DESTINATION ${ASSIMP_LIB_INSTALL_DIR}
-          FRAMEWORK DESTINATION ${ASSIMP_LIB_INSTALL_DIR}
+        COMPONENT ${LIBASSIMP_COMPONENT}
-          COMPONENT ${LIBASSIMP_COMPONENT}
+        INCLUDES DESTINATION include
-          INCLUDES DESTINATION include
+      )
-        )
-      endif()
     ENDIF()
   ENDIF()
 ENDIF()
@@ -784,8 +735,8 @@ IF ( ASSIMP_INSTALL )
 ENDIF()
 
 CONFIGURE_FILE(
-  ${CMAKE_CURRENT_LIST_DIR}/include/assimp/revision.h.in
+  ${CMAKE_CURRENT_LIST_DIR}/revision.h.in
-  ${CMAKE_CURRENT_BINARY_DIR}/include/assimp/revision.h
+  ${CMAKE_CURRENT_BINARY_DIR}/revision.h
 )
 
 CONFIGURE_FILE(

Dockerfile

@@ -1,12 +1,11 @@
 FROM ubuntu:22.04
 
-RUN apt-get update && apt-get install --no-install-recommends -y ninja-build \
+RUN apt-get update && apt-get install -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

Readme.md

@@ -15,27 +15,27 @@ Open Asset Import Library is a library to load various 3d file formats into a sh
 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.
 
-### Documentation ###
+### Latest Doc's ###
-Read [our latest documentation](https://assimp-docs.readthedocs.io/en/latest/).
+Please check the latest documents at [Asset-Importer-Lib-Doc](https://assimp-docs.readthedocs.io/en/latest/). 
 
-### Pre-built binaries ###
+### Prebuild binaries ###
-Download binaries from [our Itchi Projectspace](https://kimkulling.itch.io/the-asset-importer-lib).
+Please check our [Itchi Projectspace](https://kimkulling.itch.io/the-asset-importer-lib)
 
-### Test data ###
+If you want to check our Model-Database, use the following repo: https://github.com/assimp/assimp-mdb
-Clone [our model database](https://github.com/assimp/assimp-mdb).
 
 ### Communities ###
-- Ask questions at [the Assimp Discussion Board](https://github.com/assimp/assimp/discussions).
+- Ask a question at [The Assimp-Discussion Board](https://github.com/assimp/assimp/discussions)
-- Find us on [https://discord.gg/s9KJfaem](https://discord.gg/kKazXMXDy2)
+- Ask on [Assimp-Community on Reddit](https://www.reddit.com/r/Assimp/)
-- 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)
 
+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>
+
 #### Supported file formats ####
-See [the complete list of supported formats](https://github.com/assimp/assimp/blob/master/doc/Fileformats.md).
+You can find the complete list of supported file-formats [here](https://github.com/assimp/assimp/blob/master/doc/Fileformats.md)
 
 ### Building ###
-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.
+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.
 
 ### Ports ###
 * [Android](port/AndroidJNI/README.md)
@@ -52,7 +52,7 @@ Start by reading [our build instructions](https://github.com/assimp/assimp/blob/
 
 ### 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).
+[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 this:

cmake-modules/HunterGate.cmake

@@ -22,9 +22,38 @@
 # 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)

code/AssetLib/3DS/3DSConverter.cpp

@@ -3,7 +3,7 @@
 Open Asset Import Library (assimp)
 ---------------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 All rights reserved.
 
@@ -593,7 +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 be able to return valid cameras/lights even if no scenegraph is given.
+        // to 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);
@@ -643,17 +643,11 @@ void Discreet3DSImporter::AddNodeToGraph(aiScene *pcSOut, aiNode *pcOut,
     }
 
     // Allocate storage for children
-    const unsigned int size = static_cast<unsigned int>(pcIn->mChildren.size());
+    pcOut->mNumChildren = (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;
@@ -715,7 +709,7 @@ void Discreet3DSImporter::GenerateNodeGraph(aiScene *pcOut) {
             pcNode->mNumMeshes = 1;
 
             // Build a name for the node
-            pcNode->mName.length = ai_snprintf(pcNode->mName.data, AI_MAXLEN, "3DSMesh_%u", i);
+            pcNode->mName.length = ai_snprintf(pcNode->mName.data, MAXLEN, "3DSMesh_%u", i);
         }
 
         // Build dummy nodes for all cameras

code/AssetLib/3DS/3DSExporter.cpp

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 
 All rights reserved.
@@ -52,7 +52,6 @@ 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>

code/AssetLib/3DS/3DSExporter.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 All rights reserved.
 

code/AssetLib/3DS/3DSHelper.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 
 All rights reserved.
@@ -365,13 +365,14 @@ 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(0.6f, 0.6f, 0.6f),
+            mDiffuse(ai_real(0.6), ai_real(0.6), ai_real(0.6)),
             mSpecularExponent(ai_real(0.0)),
             mShininessStrength(ai_real(1.0)),
             mShading(Discreet3DS::Gouraud),
@@ -384,7 +385,7 @@ struct Material {
     //! Constructor with explicit name
     explicit Material(const std::string &name) :
             mName(name),
-            mDiffuse(0.6f, 0.6f, 0.6f),
+            mDiffuse(ai_real(0.6), ai_real(0.6), ai_real(0.6)),
             mSpecularExponent(ai_real(0.0)),
             mShininessStrength(ai_real(1.0)),
             mShading(Discreet3DS::Gouraud),

code/AssetLib/3DS/3DSLoader.cpp

@@ -3,7 +3,7 @@
 Open Asset Import Library (assimp)
 ---------------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 All rights reserved.
 
@@ -365,7 +365,7 @@ 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 be able to return valid cameras/lights even if no scenegraph is given.
+    // to to be able to return valid cameras/lights even if no scenegraph is given.
 
     // get chunk type
     switch (chunk.Flag) {

code/AssetLib/3DS/3DSLoader.h

@@ -3,7 +3,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 
 All rights reserved.

code/AssetLib/3MF/3MFTypes.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 All rights reserved.
 
@@ -57,7 +57,6 @@ enum class ResourceType {
     RT_BaseMaterials,
     RT_EmbeddedTexture2D,
     RT_Texture2DGroup,
-    RT_ColorGroup,
     RT_Unknown
 }; // To be extended with other resource types (eg. material extension resources like Texture2d, Texture2dGroup...)
 
@@ -118,21 +117,6 @@ public:
     }
 };
 
-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;

code/AssetLib/3MF/3MFXmlTags.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 All rights reserved.
 
@@ -98,11 +98,6 @@ namespace XmlTag {
     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
     const char* const CONTENT_TYPES_ARCHIVE = "[Content_Types].xml";
     const char* const ROOT_RELATIONSHIPS_ARCHIVE = "_rels/.rels";

code/AssetLib/3MF/D3MFExporter.cpp

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 All rights reserved.
 
@@ -249,10 +249,10 @@ void D3MFExporter::writeBaseMaterials() {
             if (color.r <= 1 && color.g <= 1 && color.b <= 1 && color.a <= 1) {
 
                 hexDiffuseColor = ai_rgba2hex(
-                        (int)(((ai_real)color.r) * 255),
+                        (int)((ai_real)color.r) * 255,
-                        (int)(((ai_real)color.g) * 255),
+                        (int)((ai_real)color.g) * 255,
-                        (int)(((ai_real)color.b) * 255),
+                        (int)((ai_real)color.b) * 255,
-                        (int)(((ai_real)color.a) * 255),
+                        (int)((ai_real)color.a) * 255,
                         true);
 
             } else {

code/AssetLib/3MF/D3MFExporter.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 All rights reserved.
 

code/AssetLib/3MF/D3MFImporter.cpp

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 All rights reserved.
 
@@ -81,17 +81,12 @@ static constexpr aiImporterDesc desc = {
     "3mf"
 };
 
-bool D3MFImporter::CanRead(const std::string &filename, IOSystem *pIOHandler, bool ) const {
+bool D3MFImporter::CanRead(const std::string &filename, IOSystem *pIOHandler, bool /*checkSig*/) const {
     if (!ZipArchiveIOSystem::isZipArchive(pIOHandler, filename)) {
         return false;
     }
-    static const char *const ModelRef = "3D/3dmodel.model";
+    D3MF::D3MFOpcPackage opcPackage(pIOHandler, filename);
-    ZipArchiveIOSystem archive(pIOHandler, filename);
+    return opcPackage.validate();
-    if (!archive.Exists(ModelRef)) {
-        return false;
-    }
-
-    return true;
 }
 
 void D3MFImporter::SetupProperties(const Importer*) {

code/AssetLib/3MF/D3MFImporter.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 All rights reserved.
 

code/AssetLib/3MF/D3MFOpcPackage.cpp

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 All rights reserved.
 
@@ -119,9 +119,9 @@ public:
 
 static bool IsEmbeddedTexture( const std::string &filename ) {
     const std::string extension = BaseImporter::GetExtension(filename);
-    if (extension == "jpg" || extension == "png" || extension == "jpeg") {
+    if (extension == "jpg" || extension == "png") {
         std::string::size_type pos = filename.find("thumbnail");
-        if (pos != std::string::npos) {
+        if (pos == std::string::npos) {
             return false;
         }
         return true;

code/AssetLib/3MF/D3MFOpcPackage.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 All rights reserved.
 

code/AssetLib/3MF/XmlSerializer.cpp

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 All rights reserved.
 
@@ -57,8 +57,8 @@ 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) {
+bool validateColorString(const char *color) {
-    const size_t len = color.size();
+    const size_t len = strlen(color);
     if (ColRGBA_Len != len && ColRGB_Len != len) {
         return false;
     }
@@ -75,7 +75,7 @@ aiFace ReadTriangle(XmlNode &node, int &texId0, int &texId1, int &texId2) {
     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;
+    texId0 = texId1 = texId2 = -1;
     XmlParser::getIntAttribute(node, XmlTag::p1, texId0);
     XmlParser::getIntAttribute(node, XmlTag::p2, texId1);
     XmlParser::getIntAttribute(node, XmlTag::p3, texId2);
@@ -157,8 +157,8 @@ aiMatrix4x4 parseTransformMatrix(const std::string& matrixStr) {
     return transformMatrix;
 }
 
-bool parseColor(const std::string &color, aiColor4D &diffuse) {
+bool parseColor(const char *color, aiColor4D &diffuse) {
-    if (color.empty()) {
+    if (nullptr == color) {
         return false;
     }
 
@@ -178,7 +178,7 @@ bool parseColor(const std::string &color, aiColor4D &diffuse) {
 
     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();
+    const size_t len = strlen(color);
     if (ColRGB_Len == len) {
         return true;
     }
@@ -236,8 +236,6 @@ void XmlSerializer::ImportXml(aiScene *scene) {
             ReadBaseMaterials(currentNode);
         } else if (currentNodeName == XmlTag::meta) {
             ReadMetadata(currentNode);
-        } else if (currentNodeName == XmlTag::colorgroup) {
-            ReadColorGroup(currentNode);
         }
     }
     StoreMaterialsInScene(scene);
@@ -333,49 +331,9 @@ void XmlSerializer::ReadObject(XmlNode &node) {
 
             if (hasPid) {
                 auto it = mResourcesDictionnary.find(pid);
-                if (hasPindex && it != mResourcesDictionnary.end()) {
+                if (hasPindex && it != mResourcesDictionnary.end() && it->second->getType() == ResourceType::RT_BaseMaterials) {
-                    if (it->second->getType() == ResourceType::RT_BaseMaterials) {
+                    BaseMaterials *materials = static_cast<BaseMaterials *>(it->second);
-                        BaseMaterials *materials = static_cast<BaseMaterials *>(it->second);
+                    mesh->mMaterialIndex = materials->mMaterialIndex[pindex];
-                        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];
-                            }
-                        }
-                    }
                 }
             }
 
@@ -457,36 +415,27 @@ void XmlSerializer::ImportTriangles(XmlNode &node, aiMesh *mesh) {
     for (XmlNode &currentNode : node.children()) {
         const std::string currentName = currentNode.name();
         if (currentName == XmlTag::triangle) {
-            int pid = IdNotSet;
+            int pid = IdNotSet, p1 = IdNotSet;
             bool hasPid = getNodeAttribute(currentNode, D3MF::XmlTag::pid, pid);
+            bool hasP1 = getNodeAttribute(currentNode, D3MF::XmlTag::p1, p1);
 
-            int pindex[3];
+            int texId[3];
-            aiFace face = ReadTriangle(currentNode, pindex[0], pindex[1], pindex[2]);
+            Texture2DGroup *group = nullptr;
-            if (hasPid && (pindex[0] != IdNotSet || pindex[1] != IdNotSet || pindex[2] != IdNotSet)) {
+            aiFace face = ReadTriangle(currentNode, texId[0], texId[1], texId[2]);
+            if (hasPid && hasP1) {
                 auto it = mResourcesDictionnary.find(pid);
                 if (it != mResourcesDictionnary.end()) {
                     if (it->second->getType() == ResourceType::RT_BaseMaterials) {
                         BaseMaterials *baseMaterials = static_cast<BaseMaterials *>(it->second);
-
+                        mesh->mMaterialIndex = baseMaterials->mMaterialIndex[p1];
-                        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;
                             }
 
+                            group = static_cast<Texture2DGroup *>(it->second);
                             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()) {
@@ -494,44 +443,21 @@ void XmlSerializer::ImportTriangles(XmlNode &node, aiMesh *mesh) {
                                 }
                             }
                             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);
                     }
                 }
             }
 
+            // Load texture coordinates into mesh, when any
+            if (group != nullptr) {
+                size_t i0 = face.mIndices[0];
+                size_t i1 = face.mIndices[1];
+                size_t i2 = face.mIndices[2];
+                mesh->mTextureCoords[0][i0] = aiVector3D(group->mTex2dCoords[texId[0]].x, group->mTex2dCoords[texId[0]].y, 0.0f);
+                mesh->mTextureCoords[0][i1] = aiVector3D(group->mTex2dCoords[texId[1]].x, group->mTex2dCoords[texId[1]].y, 0.0f);
+                mesh->mTextureCoords[0][i2] = aiVector3D(group->mTex2dCoords[texId[2]].x, group->mTex2dCoords[texId[2]].y, 0.0f);
+            }
+
             faces.push_back(face);
         }
     }
@@ -672,38 +598,6 @@ aiMaterial *XmlSerializer::readMaterialDef(XmlNode &node, unsigned int basemater
     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;

code/AssetLib/3MF/XmlSerializer.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 All rights reserved.
 
@@ -57,7 +57,6 @@ class D3MFOpcPackage;
 class Object;
 class Texture2DGroup;
 class EmbeddedTexture;
-class ColorGroup;
 
 class XmlSerializer {
 public:
@@ -79,8 +78,6 @@ private:
     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 {

code/AssetLib/AC/ACLoader.cpp

@@ -3,7 +3,7 @@
 Open Asset Import Library (assimp)
 ---------------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 All rights reserved.
 
@@ -77,8 +77,8 @@ static constexpr aiImporterDesc desc = {
 
 // ------------------------------------------------------------------------------------------------
 // skip to the next token
-inline const char *AcSkipToNextToken(const char *buffer, const char *end) {
+inline const char *AcSkipToNextToken(const char *buffer) {
-    if (!SkipSpaces(&buffer, end)) {
+    if (!SkipSpaces(&buffer)) {
         ASSIMP_LOG_ERROR("AC3D: Unexpected EOF/EOL");
     }
     return buffer;
@@ -86,13 +86,13 @@ inline const char *AcSkipToNextToken(const char *buffer, const char *end) {
 
 // ------------------------------------------------------------------------------------------------
 // read a string (may be enclosed in double quotation marks). buffer must point to "
-inline const char *AcGetString(const char *buffer, const char *end, std::string &out) {
+inline const char *AcGetString(const char *buffer, std::string &out) {
     if (*buffer == '\0') {
         throw DeadlyImportError("AC3D: Unexpected EOF in string");
     }
     ++buffer;
     const char *sz = buffer;
-    while ('\"' != *buffer && buffer != end) {
+    while ('\"' != *buffer) {
         if (IsLineEnd(*buffer)) {
             ASSIMP_LOG_ERROR("AC3D: Unexpected EOF/EOL in string");
             out = "ERROR";
@@ -112,8 +112,8 @@ inline const char *AcGetString(const char *buffer, const char *end, std::string
 // ------------------------------------------------------------------------------------------------
 // read 1 to n floats prefixed with an optional predefined identifier
 template <class T>
-inline const char *TAcCheckedLoadFloatArray(const char *buffer, const char *end, const char *name, size_t name_length, size_t num, T *out) {
+inline const char *TAcCheckedLoadFloatArray(const char *buffer, const char *name, size_t name_length, size_t num, T *out) {
-    buffer = AcSkipToNextToken(buffer, end);
+    buffer = AcSkipToNextToken(buffer);
     if (0 != name_length) {
         if (0 != strncmp(buffer, name, name_length) || !IsSpace(buffer[name_length])) {
             ASSIMP_LOG_ERROR("AC3D: Unexpected token. ", name, " was expected.");
@@ -122,7 +122,7 @@ inline const char *TAcCheckedLoadFloatArray(const char *buffer, const char *end,
         buffer += name_length + 1;
     }
     for (unsigned int _i = 0; _i < num; ++_i) {
-        buffer = AcSkipToNextToken(buffer, end);
+        buffer = AcSkipToNextToken(buffer);
         buffer = fast_atoreal_move<float>(buffer, ((float *)out)[_i]);
     }
 
@@ -132,7 +132,7 @@ inline const char *TAcCheckedLoadFloatArray(const char *buffer, const char *end,
 // ------------------------------------------------------------------------------------------------
 // Constructor to be privately used by Importer
 AC3DImporter::AC3DImporter() :
-        mBuffer(),
+        buffer(),
         configSplitBFCull(),
         configEvalSubdivision(),
         mNumMeshes(),
@@ -164,17 +164,17 @@ const aiImporterDesc *AC3DImporter::GetInfo() const {
 // ------------------------------------------------------------------------------------------------
 // Get a pointer to the next line from the file
 bool AC3DImporter::GetNextLine() {
-    SkipLine(&mBuffer.data, mBuffer.end);
+    SkipLine(&buffer);
-    return SkipSpaces(&mBuffer.data, mBuffer.end);
+    return SkipSpaces(&buffer);
 }
 
 // ------------------------------------------------------------------------------------------------
 // Parse an object section in an AC file
-bool AC3DImporter::LoadObjectSection(std::vector<Object> &objects) {
+void AC3DImporter::LoadObjectSection(std::vector<Object> &objects) {
-    if (!TokenMatch(mBuffer.data, "OBJECT", 6))
+    if (!TokenMatch(buffer, "OBJECT", 6))
-        return false;
+        return;
 
-    SkipSpaces(&mBuffer.data, mBuffer.end);
+    SkipSpaces(&buffer);
 
     ++mNumMeshes;
 
@@ -182,7 +182,7 @@ bool AC3DImporter::LoadObjectSection(std::vector<Object> &objects) {
     Object &obj = objects.back();
 
     aiLight *light = nullptr;
-    if (!ASSIMP_strincmp(mBuffer.data, "light", 5)) {
+    if (!ASSIMP_strincmp(buffer, "light", 5)) {
         // This is a light source. Add it to the list
         mLights->push_back(light = new aiLight());
 
@@ -193,71 +193,67 @@ bool 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, AI_MAXLEN, "ACLight_%i", static_cast<unsigned int>(mLights->size()) - 1);
+        light->mName.length = ::ai_snprintf(light->mName.data, 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(mBuffer.data, "group", 5)) {
+    } else if (!ASSIMP_strincmp(buffer, "group", 5)) {
         obj.type = Object::Group;
-    } else if (!ASSIMP_strincmp(mBuffer.data, "world", 5)) {
+    } else if (!ASSIMP_strincmp(buffer, "world", 5)) {
         obj.type = Object::World;
     } else
         obj.type = Object::Poly;
     while (GetNextLine()) {
-        if (TokenMatch(mBuffer.data, "kids", 4)) {
+        if (TokenMatch(buffer, "kids", 4)) {
-            SkipSpaces(&mBuffer.data, mBuffer.end);
+            SkipSpaces(&buffer);
-            unsigned int num = strtoul10(mBuffer.data, &mBuffer.data);
+            unsigned int num = strtoul10(buffer, &buffer);
             GetNextLine();
             if (num) {
                 // load the children of this object recursively
                 obj.children.reserve(num);
-                for (unsigned int i = 0; i < num; ++i) {
+                for (unsigned int i = 0; i < num; ++i)
-                    if (!LoadObjectSection(obj.children)) {
+                    LoadObjectSection(obj.children);
-                        ASSIMP_LOG_WARN("AC3D: wrong number of kids");
-                        break;
-                    }
-                }
             }
-            return true;
+            return;
-        } else if (TokenMatch(mBuffer.data, "name", 4)) {
+        } else if (TokenMatch(buffer, "name", 4)) {
-            SkipSpaces(&mBuffer.data, mBuffer.data);
+            SkipSpaces(&buffer);
-            mBuffer.data = AcGetString(mBuffer.data, mBuffer.end, obj.name);
+            buffer = AcGetString(buffer, 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(mBuffer.data, "texture", 7)) {
+        } else if (TokenMatch(buffer, "texture", 7)) {
-            SkipSpaces(&mBuffer.data, mBuffer.end);
+            SkipSpaces(&buffer);
             std::string texture;
-            mBuffer.data = AcGetString(mBuffer.data, mBuffer.end, texture);
+            buffer = AcGetString(buffer, texture);
             obj.textures.push_back(texture);
-        } else if (TokenMatch(mBuffer.data, "texrep", 6)) {
+        } else if (TokenMatch(buffer, "texrep", 6)) {
-            SkipSpaces(&mBuffer.data, mBuffer.end);
+            SkipSpaces(&buffer);
-            mBuffer.data = TAcCheckedLoadFloatArray(mBuffer.data, mBuffer.end, "", 0, 2, &obj.texRepeat);
+            buffer = TAcCheckedLoadFloatArray(buffer, "", 0, 2, &obj.texRepeat);
             if (!obj.texRepeat.x || !obj.texRepeat.y)
                 obj.texRepeat = aiVector2D(1.f, 1.f);
-        } else if (TokenMatch(mBuffer.data, "texoff", 6)) {
+        } else if (TokenMatch(buffer, "texoff", 6)) {
-            SkipSpaces(&mBuffer.data, mBuffer.end);
+            SkipSpaces(&buffer);
-            mBuffer.data = TAcCheckedLoadFloatArray(mBuffer.data, mBuffer.end, "", 0, 2, &obj.texOffset);
+            buffer = TAcCheckedLoadFloatArray(buffer, "", 0, 2, &obj.texOffset);
-        } else if (TokenMatch(mBuffer.data, "rot", 3)) {
+        } else if (TokenMatch(buffer, "rot", 3)) {
-            SkipSpaces(&mBuffer.data, mBuffer.end);
+            SkipSpaces(&buffer);
-            mBuffer.data = TAcCheckedLoadFloatArray(mBuffer.data, mBuffer.end, "", 0, 9, &obj.rotation);
+            buffer = TAcCheckedLoadFloatArray(buffer, "", 0, 9, &obj.rotation);
-        } else if (TokenMatch(mBuffer.data, "loc", 3)) {
+        } else if (TokenMatch(buffer, "loc", 3)) {
-            SkipSpaces(&mBuffer.data, mBuffer.end);
+            SkipSpaces(&buffer);
-            mBuffer.data = TAcCheckedLoadFloatArray(mBuffer.data, mBuffer.end, "", 0, 3, &obj.translation);
+            buffer = TAcCheckedLoadFloatArray(buffer, "", 0, 3, &obj.translation);
-        } else if (TokenMatch(mBuffer.data, "subdiv", 6)) {
+        } else if (TokenMatch(buffer, "subdiv", 6)) {
-            SkipSpaces(&mBuffer.data, mBuffer.end);
+            SkipSpaces(&buffer);
-            obj.subDiv = strtoul10(mBuffer.data, &mBuffer.data);
+            obj.subDiv = strtoul10(buffer, &buffer);
-        } else if (TokenMatch(mBuffer.data, "crease", 6)) {
+        } else if (TokenMatch(buffer, "crease", 6)) {
-            SkipSpaces(&mBuffer.data, mBuffer.end);
+            SkipSpaces(&buffer);
-            obj.crease = fast_atof(mBuffer.data);
+            obj.crease = fast_atof(buffer);
-        } else if (TokenMatch(mBuffer.data, "numvert", 7)) {
+        } else if (TokenMatch(buffer, "numvert", 7)) {
-            SkipSpaces(&mBuffer.data, mBuffer.end);
+            SkipSpaces(&buffer);
 
-            unsigned int t = strtoul10(mBuffer.data, &mBuffer.data);
+            unsigned int t = strtoul10(buffer, &buffer);
             if (t >= AI_MAX_ALLOC(aiVector3D)) {
                 throw DeadlyImportError("AC3D: Too many vertices, would run out of memory");
             }
@@ -266,59 +262,59 @@ bool 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(*mBuffer.data)) {
+                } else if (!IsNumeric(*buffer)) {
                     ASSIMP_LOG_ERROR("AC3D: Unexpected token: not all vertices have been parsed yet");
-                    --mBuffer.data; // make sure the line is processed a second time
+                    --buffer; // make sure the line is processed a second time
                     break;
                 }
                 obj.vertices.emplace_back();
                 aiVector3D &v = obj.vertices.back();
-                mBuffer.data = TAcCheckedLoadFloatArray(mBuffer.data, mBuffer.end, "", 0, 3, &v.x);
+                buffer = TAcCheckedLoadFloatArray(buffer, "", 0, 3, &v.x);
             }
-        } else if (TokenMatch(mBuffer.data, "numsurf", 7)) {
+        } else if (TokenMatch(buffer, "numsurf", 7)) {
-            SkipSpaces(&mBuffer.data, mBuffer.end);
+            SkipSpaces(&buffer);
 
             bool Q3DWorkAround = false;
 
-            const unsigned int t = strtoul10(mBuffer.data, &mBuffer.data);
+            const unsigned int t = strtoul10(buffer, &buffer);
             obj.surfaces.reserve(t);
             for (unsigned int i = 0; i < t; ++i) {
                 GetNextLine();
-                if (!TokenMatch(mBuffer.data, "SURF", 4)) {
+                if (!TokenMatch(buffer, "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");
                     }
-                    --mBuffer.data; // make sure the line is processed a second time
+                    --buffer; // make sure the line is processed a second time
                     // break; --- see fix notes above
 
                     Q3DWorkAround = true;
                 }
-                SkipSpaces(&mBuffer.data, mBuffer.end);
+                SkipSpaces(&buffer);
                 obj.surfaces.emplace_back();
                 Surface &surf = obj.surfaces.back();
-                surf.flags = strtoul_cppstyle(mBuffer.data);
+                surf.flags = strtoul_cppstyle(buffer);
 
                 while (true) {
                     if (!GetNextLine()) {
                         throw DeadlyImportError("AC3D: Unexpected EOF: surface is incomplete");
                     }
-                    if (TokenMatch(mBuffer.data, "mat", 3)) {
+                    if (TokenMatch(buffer, "mat", 3)) {
-                        SkipSpaces(&mBuffer.data, mBuffer.end);
+                        SkipSpaces(&buffer);
-                        surf.mat = strtoul10(mBuffer.data);
+                        surf.mat = strtoul10(buffer);
-                    } else if (TokenMatch(mBuffer.data, "refs", 4)) {
+                    } else if (TokenMatch(buffer, "refs", 4)) {
                         // --- see fix notes above
                         if (Q3DWorkAround) {
                             if (!surf.entries.empty()) {
-                                mBuffer.data -= 6;
+                                buffer -= 6;
                                 break;
                             }
                         }
 
-                        SkipSpaces(&mBuffer.data, mBuffer.end);
+                        SkipSpaces(&buffer);
-                        const unsigned int m = strtoul10(mBuffer.data);
+                        const unsigned int m = strtoul10(buffer);
                         surf.entries.reserve(m);
 
                         obj.numRefs += m;
@@ -331,12 +327,12 @@ bool AC3DImporter::LoadObjectSection(std::vector<Object> &objects) {
                             surf.entries.emplace_back();
                             Surface::SurfaceEntry &entry = surf.entries.back();
 
-                            entry.first = strtoul10(mBuffer.data, &mBuffer.data);
+                            entry.first = strtoul10(buffer, &buffer);
-                            SkipSpaces(&mBuffer.data, mBuffer.end);
+                            SkipSpaces(&buffer);
-                            mBuffer.data = TAcCheckedLoadFloatArray(mBuffer.data, mBuffer.end, "", 0, 2, &entry.second);
+                            buffer = TAcCheckedLoadFloatArray(buffer, "", 0, 2, &entry.second);
                         }
                     } else {
-                        --mBuffer.data; // make sure the line is processed a second time
+                        --buffer; // make sure the line is processed a second time
                         break;
                     }
                 }
@@ -344,7 +340,6 @@ bool AC3DImporter::LoadObjectSection(std::vector<Object> &objects) {
         }
     }
     ASSIMP_LOG_ERROR("AC3D: Unexpected EOF: \'kids\' line was expected");
-    return false;
 }
 
 // ------------------------------------------------------------------------------------------------
@@ -450,7 +445,7 @@ aiNode *AC3DImporter::ConvertObjectSection(Object &object,
                     idx = 0;
                 }
                 if ((*it).entries.empty()) {
-                    ASSIMP_LOG_WARN("AC3D: surface has zero vertex references");
+                    ASSIMP_LOG_WARN("AC3D: surface her zero vertex references");
                 }
 
                 // validate all vertex indices to make sure we won't crash here
@@ -468,15 +463,16 @@ aiNode *AC3DImporter::ConvertObjectSection(Object &object,
                 }
 
                 switch ((*it).GetType()) {
-                case Surface::ClosedLine: // closed line
+                    // closed line
-                    needMat[idx].first += static_cast<unsigned int>((*it).entries.size());
+                case Surface::ClosedLine:
-                    needMat[idx].second += static_cast<unsigned int>((*it).entries.size() << 1u);
+                    needMat[idx].first += (unsigned int)(*it).entries.size();
+                    needMat[idx].second += (unsigned int)(*it).entries.size() << 1u;
                     break;
 
                     // unclosed line
                 case Surface::OpenLine:
-                    needMat[idx].first += static_cast<unsigned int>((*it).entries.size() - 1);
+                    needMat[idx].first += (unsigned int)(*it).entries.size() - 1;
-                    needMat[idx].second += static_cast<unsigned int>(((*it).entries.size() - 1) << 1u);
+                    needMat[idx].second += ((unsigned int)(*it).entries.size() - 1) << 1u;
                     break;
 
                     // triangle strip
@@ -578,6 +574,15 @@ 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];
@@ -696,18 +701,18 @@ 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, AI_MAXLEN, "ACGroup_%i", mGroupsCounter++);
+            node->mName.length = ::ai_snprintf(node->mName.data, MAXLEN, "ACGroup_%i", mGroupsCounter++);
             break;
         case Object::Poly:
-            node->mName.length = ::ai_snprintf(node->mName.data, AI_MAXLEN, "ACPoly_%i", mPolysCounter++);
+            node->mName.length = ::ai_snprintf(node->mName.data, MAXLEN, "ACPoly_%i", mPolysCounter++);
             break;
         case Object::Light:
-            node->mName.length = ::ai_snprintf(node->mName.data, AI_MAXLEN, "ACLight_%i", mLightsCounter++);
+            node->mName.length = ::ai_snprintf(node->mName.data, 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, AI_MAXLEN, "ACWorld_%i", mWorldsCounter++);
+            node->mName.length = ::ai_snprintf(node->mName.data, MAXLEN, "ACWorld_%i", mWorldsCounter++);
             break;
         }
     }
@@ -755,18 +760,17 @@ void AC3DImporter::InternReadFile(const std::string &pFile,
     std::vector<char> mBuffer2;
     TextFileToBuffer(file.get(), mBuffer2);
 
-    mBuffer.data = &mBuffer2[0];
+    buffer = &mBuffer2[0];
-    mBuffer.end = &mBuffer2[0] + mBuffer2.size();
     mNumMeshes = 0;
 
     mLightsCounter = mPolysCounter = mWorldsCounter = mGroupsCounter = 0;
 
-    if (::strncmp(mBuffer.data, "AC3D", 4)) {
+    if (::strncmp(buffer, "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(mBuffer.data[4]);
+    unsigned int version = HexDigitToDecimal(buffer[4]);
     char msg[3];
     ASSIMP_itoa10(msg, 3, version);
     ASSIMP_LOG_INFO("AC3D file format version: ", msg);
@@ -781,31 +785,30 @@ void AC3DImporter::InternReadFile(const std::string &pFile,
     mLights = &lights;
 
     while (GetNextLine()) {
-        if (TokenMatch(mBuffer.data, "MATERIAL", 8)) {
+        if (TokenMatch(buffer, "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
 
-            mBuffer.data = AcSkipToNextToken(mBuffer.data, mBuffer.end);
+            buffer = AcSkipToNextToken(buffer);
-            if ('\"' == *mBuffer.data) {
+            if ('\"' == *buffer) {
-                mBuffer.data = AcGetString(mBuffer.data, mBuffer.end, mat.name);
+                buffer = AcGetString(buffer, mat.name);
-                mBuffer.data = AcSkipToNextToken(mBuffer.data, mBuffer.end);
+                buffer = AcSkipToNextToken(buffer);
             }
 
-            mBuffer.data = TAcCheckedLoadFloatArray(mBuffer.data, mBuffer.end, "rgb", 3, 3, &mat.rgb);
+            buffer = TAcCheckedLoadFloatArray(buffer, "rgb", 3, 3, &mat.rgb);
-            mBuffer.data = TAcCheckedLoadFloatArray(mBuffer.data, mBuffer.end, "amb", 3, 3, &mat.amb);
+            buffer = TAcCheckedLoadFloatArray(buffer, "amb", 3, 3, &mat.amb);
-            mBuffer.data = TAcCheckedLoadFloatArray(mBuffer.data, mBuffer.end, "emis", 4, 3, &mat.emis);
+            buffer = TAcCheckedLoadFloatArray(buffer, "emis", 4, 3, &mat.emis);
-            mBuffer.data = TAcCheckedLoadFloatArray(mBuffer.data, mBuffer.end, "spec", 4, 3, &mat.spec);
+            buffer = TAcCheckedLoadFloatArray(buffer, "spec", 4, 3, &mat.spec);
-            mBuffer.data = TAcCheckedLoadFloatArray(mBuffer.data, mBuffer.end, "shi", 3, 1, &mat.shin);
+            buffer = TAcCheckedLoadFloatArray(buffer, "shi", 3, 1, &mat.shin);
-            mBuffer.data = TAcCheckedLoadFloatArray(mBuffer.data, mBuffer.end, "trans", 5, 1, &mat.trans);
+            buffer = TAcCheckedLoadFloatArray(buffer, "trans", 5, 1, &mat.trans);
-        } else {
-            LoadObjectSection(rootObjects);
         }
+        LoadObjectSection(rootObjects);
     }
 
-    if (rootObjects.empty() || mNumMeshes == 0u) {
+    if (rootObjects.empty() || !mNumMeshes) {
         throw DeadlyImportError("AC3D: No meshes have been loaded");
     }
     if (materials.empty()) {
@@ -821,7 +824,7 @@ 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 = nullptr;
+    Object *root;
     if (1 == rootObjects.size())
         root = &rootObjects[0];
     else {
@@ -834,7 +837,7 @@ void AC3DImporter::InternReadFile(const std::string &pFile,
         delete root;
     }
 
-    if (::strncmp(pScene->mRootNode->mName.data, "Node", 4) == 0) {
+    if (!::strncmp(pScene->mRootNode->mName.data, "Node", 4)) {
         pScene->mRootNode->mName.Set("<AC3DWorld>");
     }
 
@@ -853,7 +856,7 @@ void AC3DImporter::InternReadFile(const std::string &pFile,
 
     // copy lights
     pScene->mNumLights = (unsigned int)lights.size();
-    if (!lights.empty()) {
+    if (lights.size()) {
         pScene->mLights = new aiLight *[lights.size()];
         ::memcpy(pScene->mLights, &lights[0], lights.size() * sizeof(void *));
     }

code/AssetLib/AC/ACLoader.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 All rights reserved.
 
@@ -216,7 +216,7 @@ private:
      *  load subobjects, the method returns after a 'kids 0' was
      *  encountered.
      *  @objects List of output objects*/
-    bool LoadObjectSection(std::vector<Object> &objects);
+    void LoadObjectSection(std::vector<Object> &objects);
 
     // -------------------------------------------------------------------
     /** Convert all objects into meshes and nodes.
@@ -242,7 +242,7 @@ private:
 
 private:
     // points to the next data line
-    aiBuffer mBuffer;
+    const char *buffer;
 
     // Configuration option: if enabled, up to two meshes
     // are generated per material: those faces who have

code/AssetLib/AMF/AMFImporter.cpp

@@ -3,7 +3,7 @@
 Open Asset Import Library (assimp)
 ---------------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 All rights reserved.
 
@@ -178,6 +178,28 @@ bool AMFImporter::XML_SearchNode(const std::string &nodeName) {
     return nullptr != mXmlParser->findNode(nodeName);
 }
 
+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]);
+        }
+    }
+}
+
 static bool ParseHelper_Decode_Base64_IsBase64(const char pChar) {
     return (isalnum((unsigned char)pChar) || (pChar == '+') || (pChar == '/'));
 }
@@ -191,10 +213,7 @@ void AMFImporter::ParseHelper_Decode_Base64(const std::string &pInputBase64, std
     uint8_t arr4[4], arr3[3];
 
     // check input data
-    if (pInputBase64.size() % 4) {
+    if (pInputBase64.size() % 4) throw DeadlyImportError("Base64-encoded data must have size multiply of four.");
-        throw DeadlyImportError("Base64-encoded data must have size multiply of four.");
-    }
-
     // prepare output place
     pOutputData.clear();
     pOutputData.reserve(pInputBase64.size() / 4 * 3);
@@ -384,17 +403,17 @@ void AMFImporter::ParseNode_Instance(XmlNode &node) {
         for (auto &currentNode : node.children()) {
             const std::string &currentName = currentNode.name();
             if (currentName == "deltax") {
-                XmlParser::getValueAsReal(currentNode, als.Delta.x);
+                XmlParser::getValueAsFloat(currentNode, als.Delta.x);
             } else if (currentName == "deltay") {
-                XmlParser::getValueAsReal(currentNode, als.Delta.y);
+                XmlParser::getValueAsFloat(currentNode, als.Delta.y);
             } else if (currentName == "deltaz") {
-                XmlParser::getValueAsReal(currentNode, als.Delta.z);
+                XmlParser::getValueAsFloat(currentNode, als.Delta.z);
             } else if (currentName == "rx") {
-                XmlParser::getValueAsReal(currentNode, als.Delta.x);
+                XmlParser::getValueAsFloat(currentNode, als.Delta.x);
             } else if (currentName == "ry") {
-                XmlParser::getValueAsReal(currentNode, als.Delta.y);
+                XmlParser::getValueAsFloat(currentNode, als.Delta.y);
             } else if (currentName == "rz") {
-                XmlParser::getValueAsReal(currentNode, als.Delta.z);
+                XmlParser::getValueAsFloat(currentNode, als.Delta.z);
             }
         }
         ParseHelper_Node_Exit();

code/AssetLib/AMF/AMFImporter.hpp

@@ -3,7 +3,7 @@
 Open Asset Import Library (assimp)
 ---------------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 All rights reserved.
 
@@ -168,6 +168,7 @@ public:
     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);
+    void ParseHelper_FixTruncatedFloatString(const char *pInStr, std::string &pOutString);
     AMFImporter(const AMFImporter &pScene) = delete;
     AMFImporter &operator=(const AMFImporter &pScene) = delete;
 

code/AssetLib/AMF/AMFImporter_Geometry.cpp

@@ -3,7 +3,7 @@
 Open Asset Import Library (assimp)
 ---------------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 All rights reserved.
 
@@ -167,11 +167,11 @@ void AMFImporter::ParseNode_Coordinates(XmlNode &node) {
             AMFCoordinates &als = *((AMFCoordinates *)ne); // alias for convenience
             const std::string &currentName = ai_tolower(currentNode.name());
             if (currentName == "x") {
-                XmlParser::getValueAsReal(currentNode, als.Coordinate.x);
+                XmlParser::getValueAsFloat(currentNode, als.Coordinate.x);
             } else if (currentName == "y") {
-                XmlParser::getValueAsReal(currentNode, als.Coordinate.y);
+                XmlParser::getValueAsFloat(currentNode, als.Coordinate.y);
             } else if (currentName == "z") {
-                XmlParser::getValueAsReal(currentNode, als.Coordinate.z);
+                XmlParser::getValueAsFloat(currentNode, als.Coordinate.z);
             }
         }
         ParseHelper_Node_Exit();

code/AssetLib/AMF/AMFImporter_Material.cpp

@@ -3,7 +3,7 @@
 Open Asset Import Library (assimp)
 ---------------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 All rights reserved.
 
@@ -263,25 +263,26 @@ void AMFImporter::ParseNode_TexMap(XmlNode &node, const bool pUseOldName) {
             const std::string &name = currentNode.name();
             if (name == "utex1") {
 				read_flag[0] = true;
-                XmlParser::getValueAsReal(node, als.TextureCoordinate[0].x);
+                XmlParser::getValueAsFloat(node, als.TextureCoordinate[0].x);
             } else if (name == "utex2") {
 				read_flag[1] = true;
-                XmlParser::getValueAsReal(node, als.TextureCoordinate[1].x);
+                XmlParser::getValueAsFloat(node, als.TextureCoordinate[1].x);
             } else if (name == "utex3") {
 				read_flag[2] = true;
-                XmlParser::getValueAsReal(node, als.TextureCoordinate[2].x);
+                XmlParser::getValueAsFloat(node, als.TextureCoordinate[2].x);
             } else if (name == "vtex1") {
 				read_flag[3] = true;
-                XmlParser::getValueAsReal(node, als.TextureCoordinate[0].y);
+                XmlParser::getValueAsFloat(node, als.TextureCoordinate[0].y);
             } else if (name == "vtex2") {
 				read_flag[4] = true;
-                XmlParser::getValueAsReal(node, als.TextureCoordinate[1].y);
+                XmlParser::getValueAsFloat(node, als.TextureCoordinate[1].y);
             } else if (name == "vtex3") {
 				read_flag[5] = true;
-                XmlParser::getValueAsReal(node, als.TextureCoordinate[2].y);
+                XmlParser::getValueAsFloat(node, als.TextureCoordinate[2].y);
 			}
 		}
         ParseHelper_Node_Exit();
+
 	} else {
 		for (pugi::xml_attribute &attr : node.attributes()) {
             const std::string name = attr.name();

code/AssetLib/AMF/AMFImporter_Node.hpp

@@ -3,7 +3,7 @@
 Open Asset Import Library (assimp)
 ---------------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 All rights reserved.
 
@@ -56,6 +56,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include <string>
 #include <vector>
 
+/// \class CAMFImporter_NodeElement
 /// Base class for elements of nodes.
 class AMFNodeElementBase {
 public:
@@ -105,6 +106,7 @@ protected:
 	}
 }; // class IAMFImporter_NodeElement
 
+/// \struct CAMFImporter_NodeElement_Constellation
 /// A collection of objects or constellations with specific relative locations.
 struct AMFConstellation : public AMFNodeElementBase {
 	/// Constructor.
@@ -114,6 +116,7 @@ struct AMFConstellation : public AMFNodeElementBase {
 
 }; // struct CAMFImporter_NodeElement_Constellation
 
+/// \struct CAMFImporter_NodeElement_Instance
 /// Part of constellation.
 struct AMFInstance : public AMFNodeElementBase {
 
@@ -132,6 +135,7 @@ struct AMFInstance : public AMFNodeElementBase {
 			AMFNodeElementBase(ENET_Instance, pParent) {}
 };
 
+/// \struct CAMFImporter_NodeElement_Metadata
 /// Structure that define metadata node.
 struct AMFMetadata : public AMFNodeElementBase {
 
@@ -144,6 +148,7 @@ struct AMFMetadata : public AMFNodeElementBase {
 			AMFNodeElementBase(ENET_Metadata, pParent) {}
 };
 
+/// \struct CAMFImporter_NodeElement_Root
 /// Structure that define root node.
 struct AMFRoot : public AMFNodeElementBase {
 
@@ -156,6 +161,7 @@ struct AMFRoot : public AMFNodeElementBase {
 			AMFNodeElementBase(ENET_Root, pParent) {}
 };
 
+/// \struct CAMFImporter_NodeElement_Color
 /// Structure that define object node.
 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.
@@ -171,6 +177,7 @@ struct AMFColor : public AMFNodeElementBase {
 	}
 };
 
+/// \struct CAMFImporter_NodeElement_Material
 /// Structure that define material node.
 struct AMFMaterial : public AMFNodeElementBase {
 
@@ -180,6 +187,7 @@ struct AMFMaterial : public AMFNodeElementBase {
 			AMFNodeElementBase(ENET_Material, pParent) {}
 };
 
+/// \struct CAMFImporter_NodeElement_Object
 /// Structure that define object node.
 struct AMFObject : public AMFNodeElementBase {
 
@@ -198,6 +206,7 @@ struct AMFMesh : public AMFNodeElementBase {
 			AMFNodeElementBase(ENET_Mesh, pParent) {}
 };
 
+/// \struct CAMFImporter_NodeElement_Vertex
 /// Structure that define vertex node.
 struct AMFVertex : public AMFNodeElementBase {
 	/// Constructor.
@@ -206,6 +215,7 @@ struct AMFVertex : public AMFNodeElementBase {
 			AMFNodeElementBase(ENET_Vertex, pParent) {}
 };
 
+/// \struct CAMFImporter_NodeElement_Edge
 /// Structure that define edge node.
 struct AMFEdge : public AMFNodeElementBase {
 	/// Constructor.
@@ -214,6 +224,7 @@ struct AMFEdge : public AMFNodeElementBase {
 			AMFNodeElementBase(ENET_Edge, pParent) {}
 };
 
+/// \struct CAMFImporter_NodeElement_Vertices
 /// Structure that define vertices node.
 struct AMFVertices : public AMFNodeElementBase {
 	/// Constructor.
@@ -222,6 +233,7 @@ struct AMFVertices : public AMFNodeElementBase {
 			AMFNodeElementBase(ENET_Vertices, pParent) {}
 };
 
+/// \struct CAMFImporter_NodeElement_Volume
 /// Structure that define volume node.
 struct AMFVolume : public AMFNodeElementBase {
 	std::string MaterialID; ///< Which material to use.
@@ -233,6 +245,7 @@ struct AMFVolume : public AMFNodeElementBase {
 			AMFNodeElementBase(ENET_Volume, pParent) {}
 };
 
+/// \struct CAMFImporter_NodeElement_Coordinates
 /// Structure that define coordinates node.
 struct AMFCoordinates : public AMFNodeElementBase {
 	aiVector3D Coordinate; ///< Coordinate.
@@ -243,6 +256,7 @@ struct AMFCoordinates : public AMFNodeElementBase {
 			AMFNodeElementBase(ENET_Coordinates, pParent) {}
 };
 
+/// \struct CAMFImporter_NodeElement_TexMap
 /// Structure that define texture coordinates node.
 struct AMFTexMap : public AMFNodeElementBase {
 	aiVector3D TextureCoordinate[3]; ///< Texture coordinates.
@@ -259,6 +273,7 @@ struct AMFTexMap : public AMFNodeElementBase {
 	}
 };
 
+/// \struct CAMFImporter_NodeElement_Triangle
 /// Structure that define triangle node.
 struct AMFTriangle : public AMFNodeElementBase {
 	size_t V[3]; ///< Triangle vertices.

code/AssetLib/AMF/AMFImporter_Postprocess.cpp

@@ -3,7 +3,7 @@
 Open Asset Import Library (assimp)
 ---------------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 All rights reserved.
 
@@ -224,8 +224,7 @@ size_t AMFImporter::PostprocessHelper_GetTextureID_Or_Create(const std::string &
     }
 
     // Create format hint.
-    constexpr char templateColor[] = "rgba0000";
+    strcpy(converted_texture.FormatHint, "rgba0000"); // copy initial string.
-    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';
@@ -868,7 +867,7 @@ 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.
-            strncpy(pScene->mTextures[idx]->achFormatHint, tex_convd.FormatHint, HINTMAXTEXTURELEN);
+            strcpy(pScene->mTextures[idx]->achFormatHint, tex_convd.FormatHint);
             idx++;
         } // for(const SPP_Texture& tex_convd: mTexture_Converted)
 

code/AssetLib/ASE/ASELoader.cpp

@@ -3,7 +3,7 @@
 Open Asset Import Library (assimp)
 ---------------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 All rights reserved.
 
@@ -124,7 +124,7 @@ void ASEImporter::InternReadFile(const std::string &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;
 
@@ -146,7 +146,7 @@ void ASEImporter::InternReadFile(const std::string &pFile,
     };
 
     // Construct an ASE parser and parse the file
-    ASE::Parser parser(mBuffer, fileSize, defaultFormat);
+    ASE::Parser parser(mBuffer, defaultFormat);
     mParser = &parser;
     mParser->Parse();
 
@@ -446,9 +446,10 @@ void ASEImporter::BuildLights() {
 }
 
 // ------------------------------------------------------------------------------------------------
-void ASEImporter::AddNodes(const std::vector<BaseNode *> &nodes, aiNode *pcParent, const std::string &name) {
+void ASEImporter::AddNodes(const std::vector<BaseNode *> &nodes,
+        aiNode *pcParent, const char *szName) {
     aiMatrix4x4 m;
-    AddNodes(nodes, pcParent, name, m);
+    AddNodes(nodes, pcParent, szName, m);
 }
 
 // ------------------------------------------------------------------------------------------------
@@ -505,9 +506,10 @@ 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 std::string &name,
+void ASEImporter::AddNodes(const std::vector<BaseNode *> &nodes,
+        aiNode *pcParent, const char *szName,
         const aiMatrix4x4 &mat) {
-    const size_t len = name.size();
+    const size_t len = szName ? ::strlen(szName) : 0;
     ai_assert(4 <= AI_MAX_NUMBER_OF_COLOR_SETS);
 
     // Receives child nodes for the pcParent node
@@ -517,18 +519,16 @@ void ASEImporter::AddNodes(const std::vector<BaseNode *> &nodes, aiNode *pcParen
     // 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 (!name.empty()) {
+        if (szName) {
-            if (len != snode->mParent.length() || name != snode->mParent.c_str()) {
+            if (len != snode->mParent.length() || ::strcmp(szName, 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"));
@@ -541,7 +541,7 @@ void ASEImporter::AddNodes(const std::vector<BaseNode *> &nodes, aiNode *pcParen
 
         // 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.C_Str(), snode->mTransform);
+            AddNodes(nodes, node, node->mName.data, snode->mTransform);
         }
 
         // Further processing depends on the type of the node
@@ -619,8 +619,7 @@ void ASEImporter::BuildNodes(std::vector<BaseNode *> &nodes) {
     }
 
     // add all nodes
-    static const std::string none = "";
+    AddNodes(nodes, ch, nullptr);
-    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)
@@ -905,7 +904,7 @@ 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 consists of submeshes, split it
+    // If the material the mesh is assigned to is consisting of submeshes, split it
     if (!mParser->m_vMaterials[mesh.iMaterialIndex].avSubMaterials.empty()) {
         std::vector<ASE::Material> vSubMaterials = mParser->m_vMaterials[mesh.iMaterialIndex].avSubMaterials;
 

code/AssetLib/ASE/ASELoader.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 All rights reserved.
 
@@ -153,13 +153,13 @@ private:
      *  \param matrix Current transform
      */
     void AddNodes(const std::vector<ASE::BaseNode*>& nodes,
-        aiNode* pcParent, const std::string &name);
+        aiNode* pcParent,const char* szName);
 
     void AddNodes(const std::vector<ASE::BaseNode*>& nodes,
-        aiNode* pcParent, const std::string &name,
+        aiNode* pcParent,const char* szName,
         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
@@ -188,4 +188,5 @@ protected:
 
 } // end of namespace Assimp
 
+
 #endif // AI_3DSIMPORTER_H_INC

code/AssetLib/ASE/ASEParser.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 All rights reserved.
 
@@ -391,11 +391,11 @@ public:
     // -------------------------------------------------------------------
     //! Construct a parser from a given input file which is
     //! guaranteed to be terminated with zero.
-    //! @param file              The name of the input file.
+    //! @param szFile 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 *file, size_t fileLen, unsigned int fileFormatDefault);
+    Parser(const char *szFile, unsigned int fileFormatDefault);
 
     // -------------------------------------------------------------------
     //! Parses the file into the parsers internal representation
@@ -553,15 +553,13 @@ private:
     //! (also works for MESH_TVERT, MESH_CFACE, MESH_VERTCOL  ...)
     //! \param apOut Output buffer (3 floats)
     //! \param rIndexOut Output index
-    void ParseLV4MeshRealTriple(ai_real *apOut, unsigned int &rIndexOut);
+    void ParseLV4MeshFloatTriple(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 ParseLV4MeshRealTriple(ai_real *apOut);
+    void ParseLV4MeshFloatTriple(ai_real *apOut);
-    void ParseLV4MeshFloatTriple(float *apOut);
 
     // -------------------------------------------------------------------
     //! Parse a *MESH_TFACE block in a file
@@ -579,8 +577,7 @@ private:
     // -------------------------------------------------------------------
     //! Parse a single float element
     //! \param fOut Output float
-    void ParseLV4MeshReal(ai_real &fOut);
+    void ParseLV4MeshFloat(ai_real &fOut);
-    void ParseLV4MeshFloat(float &fOut);
 
     // -------------------------------------------------------------------
     //! Parse a single int element
@@ -620,8 +617,8 @@ private:
     bool ParseString(std::string &out, const char *szName);
 
 public:
-    const char *mFilePtr; ////< Pointer to current data
+    //! Pointer to current data
-    const char *mEnd;     ///< The end pointer of the file data
+    const char *filePtr;
 
     //! 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) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 All rights reserved.
 

code/AssetLib/Assbin/AssbinExporter.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 All rights reserved.
 

code/AssetLib/Assbin/AssbinFileWriter.cpp

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 All rights reserved.
 
@@ -50,7 +50,11 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include <assimp/version.h>
 #include <assimp/IOStream.hpp>
 
-#include "zlib.h"
+#ifdef ASSIMP_BUILD_NO_OWN_ZLIB
+#include <zlib.h>
+#else
+#include "../contrib/zlib/zlib.h"
+#endif
 
 #include <ctime>
 

code/AssetLib/Assbin/AssbinFileWriter.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 All rights reserved.
 

code/AssetLib/Assbin/AssbinLoader.cpp

@@ -3,7 +3,7 @@
 Open Asset Import Library (assimp)
 ---------------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 All rights reserved.
 

code/AssetLib/Assbin/AssbinLoader.h

@@ -3,7 +3,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 All rights reserved.
 

code/AssetLib/Assxml/AssxmlExporter.cpp

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 
 All rights reserved.

code/AssetLib/Assxml/AssxmlExporter.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 
 All rights reserved.

code/AssetLib/Assxml/AssxmlFileWriter.cpp

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 
 All rights reserved.

code/AssetLib/Assxml/AssxmlFileWriter.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 All rights reserved.
 

code/AssetLib/B3D/B3DImporter.cpp

@@ -3,7 +3,7 @@
 Open Asset Import Library (assimp)
 ---------------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 All rights reserved.
 

code/AssetLib/B3D/B3DImporter.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 All rights reserved.
 

code/AssetLib/BVH/BVHLoader.cpp

@@ -4,7 +4,7 @@
 Open Asset Import Library (assimp)
 ---------------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 
 

code/AssetLib/BVH/BVHLoader.h

@@ -4,7 +4,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 
 All rights reserved.

code/AssetLib/Blender/BlenderBMesh.cpp

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 All rights reserved.
 
 Redistribution and use of this software in source and binary forms,

code/AssetLib/Blender/BlenderBMesh.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 All rights reserved.
 
 Redistribution and use of this software in source and binary forms,

code/AssetLib/Blender/BlenderDNA.cpp

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 
 All rights reserved.

code/AssetLib/Blender/BlenderDNA.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 
 All rights reserved.

code/AssetLib/Blender/BlenderDNA.inl

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 All rights reserved.
 

code/AssetLib/Blender/BlenderIntermediate.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 
 All rights reserved.

code/AssetLib/Blender/BlenderLoader.cpp

@@ -3,7 +3,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 
 All rights reserved.
@@ -359,7 +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>(AI_MAXLEN - 1), static_cast<int32_t>(conv_data.textures->size()));
+        name.length = 1 + ASSIMP_itoa10(name.data + 1, static_cast<unsigned int>(MAXLEN - 1), static_cast<int32_t>(conv_data.textures->size()));
 
         conv_data.textures->push_back(new aiTexture());
         aiTexture *curTex = conv_data.textures->back();
@@ -433,7 +433,7 @@ void BlenderImporter::AddSentinelTexture(aiMaterial *out, const Material *mat, c
     (void)conv_data;
 
     aiString name;
-    name.length = ai_snprintf(name.data, AI_MAXLEN, "Procedural,num=%i,type=%s", conv_data.sentinel_cnt++,
+    name.length = ai_snprintf(name.data, 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]++));

code/AssetLib/Blender/BlenderLoader.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 All rights reserved.
 

code/AssetLib/Blender/BlenderModifier.cpp

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 
 All rights reserved.
@@ -283,11 +283,6 @@ 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]());
 

code/AssetLib/Blender/BlenderModifier.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 
 All rights reserved.

code/AssetLib/Blender/BlenderScene.cpp

@@ -297,7 +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 a hand-written exception that
+    // This structure converter is therefore an hand-written exception that
     // does it iteratively.
 
     const int initial_pos = db.reader->GetCurrentPos();

code/AssetLib/Blender/BlenderScene.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 
 All rights reserved.

code/AssetLib/Blender/BlenderTessellator.cpp

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 All rights reserved.
 

code/AssetLib/Blender/BlenderTessellator.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 All rights reserved.
 

code/AssetLib/C4D/C4DImporter.cpp

@@ -46,6 +46,10 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 // no #ifdefing here, Cinema4D support is carried out in a branch of assimp
 // where it is turned on in the CMake settings.
 
+#ifndef _MSC_VER
+#   error C4D support is currently MSVC only
+#endif
+
 #include "C4DImporter.h"
 #include <memory>
 #include <assimp/IOSystem.hpp>
@@ -107,7 +111,7 @@ C4DImporter::C4DImporter() = default;
 C4DImporter::~C4DImporter() = default;
 
 // ------------------------------------------------------------------------------------------------
-bool C4DImporter::CanRead( const std::string& pFile, IOSystem* pIOHandler, bool checkSig) const {
+bool C4DImporter::CanRead( const std::string& pFile, IOSystem* /*pIOHandler*/, bool /*checkSig*/) const {
     const std::string& extension = GetExtension(pFile);
     if (extension == "c4d") {
         return true;
@@ -301,7 +305,7 @@ void C4DImporter::RecurseHierarchy(BaseObject* object, aiNode* parent) {
 
     // based on Cineware sample code
     while (object) {
-        const Int32 type = object->GetType();
+        const LONG type = object->GetType();
         const Matrix& ml = object->GetMl();
 
         aiNode* const nd = new aiNode();
@@ -364,8 +368,8 @@ aiMesh* C4DImporter::ReadMesh(BaseObject* object) {
     PolygonObject* const polyObject = dynamic_cast<PolygonObject*>(object);
     ai_assert(polyObject != nullptr);
 
-    const Int32 pointCount = polyObject->GetPointCount();
+    const LONG pointCount = polyObject->GetPointCount();
-    const Int32 polyCount = polyObject->GetPolygonCount();
+    const LONG polyCount = polyObject->GetPolygonCount();
     if(!polyObject || !pointCount) {
         LogWarn("ignoring mesh with zero vertices or faces");
         return nullptr;
@@ -387,7 +391,7 @@ aiMesh* C4DImporter::ReadMesh(BaseObject* object) {
     unsigned int vcount = 0;
 
     // first count vertices
-    for (Int32 i = 0; i < polyCount; i++)
+    for (LONG i = 0; i < polyCount; i++)
     {
         vcount += 3;
 
@@ -430,7 +434,7 @@ aiMesh* C4DImporter::ReadMesh(BaseObject* object) {
     }
 
     // copy vertices and extra channels over and populate faces
-    for (Int32 i = 0; i < polyCount; ++i, ++face) {
+    for (LONG i = 0; i < polyCount; ++i, ++face) {
         ai_assert(polys[i].a < pointCount && polys[i].a >= 0);
         const Vector& pointA = points[polys[i].a];
         verts->x = pointA.x;
@@ -507,7 +511,7 @@ aiMesh* C4DImporter::ReadMesh(BaseObject* object) {
         if (tangents_src) {
 
             for(unsigned int k = 0; k < face->mNumIndices; ++k) {
-                Int32 l;
+                LONG l;
                 switch(k) {
                 case 0:
                     l = polys[i].a;

code/AssetLib/C4D/C4DImporter.h

@@ -78,8 +78,6 @@ namespace Assimp  {
 // -------------------------------------------------------------------------------------------
 class C4DImporter : public BaseImporter, public LogFunctions<C4DImporter> {
 public:
-    C4DImporter();
-    ~C4DImporter() override;
     bool CanRead( const std::string& pFile, IOSystem*, bool checkSig) const override;
 
 protected:

code/AssetLib/COB/COBLoader.cpp

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 All rights reserved.
 
@@ -372,11 +372,9 @@ aiNode *COBImporter::BuildNodes(const Node &root, const Scene &scin, aiScene *fi
     }
 
     // add children recursively
-    if (!root.temp_children.empty()) {
+    nd->mChildren = new aiNode *[root.temp_children.size()]();
-        nd->mChildren = new aiNode *[root.temp_children.size()]();
+    for (const Node *n : root.temp_children) {
-        for (const Node *n : root.temp_children) {
+        (nd->mChildren[nd->mNumChildren++] = BuildNodes(*n, scin, fill))->mParent = nd;
-            (nd->mChildren[nd->mNumChildren++] = BuildNodes(*n, scin, fill))->mParent = nd;
-        }
     }
 
     return nd;
@@ -475,9 +473,8 @@ void COBImporter::ReadBasicNodeInfo_Ascii(Node &msh, LineSplitter &splitter, con
         } else if (splitter.match_start("Transform")) {
             for (unsigned int y = 0; y < 4 && ++splitter; ++y) {
                 const char *s = splitter->c_str();
-                const char *end = s + splitter->size();
                 for (unsigned int x = 0; x < 4; ++x) {
-                    SkipSpaces(&s, end);
+                    SkipSpaces(&s);
                     msh.transform[y][x] = fast_atof(&s);
                 }
             }
@@ -489,12 +486,12 @@ void COBImporter::ReadBasicNodeInfo_Ascii(Node &msh, LineSplitter &splitter, con
 
 // ------------------------------------------------------------------------------------------------
 template <typename T>
-void COBImporter::ReadFloat3Tuple_Ascii(T &fill, const char **in, const char *end) {
+void COBImporter::ReadFloat3Tuple_Ascii(T &fill, const char **in) {
     const char *rgb = *in;
     for (unsigned int i = 0; i < 3; ++i) {
-        SkipSpaces(&rgb, end);
+        SkipSpaces(&rgb);
         if (*rgb == ',') ++rgb;
-        SkipSpaces(&rgb, end);
+        SkipSpaces(&rgb);
 
         fill[i] = fast_atof(&rgb);
     }
@@ -541,7 +538,7 @@ void COBImporter::ReadMat1_Ascii(Scene &out, LineSplitter &splitter, const Chunk
     }
 
     const char *rgb = splitter[1];
-    ReadFloat3Tuple_Ascii(mat.rgb, &rgb, splitter.getEnd());
+    ReadFloat3Tuple_Ascii(mat.rgb, &rgb);
 
     ++splitter;
     if (!splitter.match_start("alpha ")) {
@@ -620,21 +617,20 @@ void COBImporter::ReadLght_Ascii(Scene &out, LineSplitter &splitter, const Chunk
     }
 
     const char *rgb = splitter[1];
-    const char *end = splitter.getEnd();
+    ReadFloat3Tuple_Ascii(msh.color, &rgb);
-    ReadFloat3Tuple_Ascii(msh.color, &rgb, end);
 
-    SkipSpaces(&rgb, end);
+    SkipSpaces(&rgb);
     if (strncmp(rgb, "cone angle", 10) != 0) {
         ASSIMP_LOG_WARN("Expected `cone angle` entity in `color` line in `Lght` chunk ", nfo.id);
     }
-    SkipSpaces(rgb + 10, &rgb, end);
+    SkipSpaces(rgb + 10, &rgb);
     msh.angle = fast_atof(&rgb);
 
-    SkipSpaces(&rgb, end);
+    SkipSpaces(&rgb);
     if (strncmp(rgb, "inner angle", 11) != 0) {
         ASSIMP_LOG_WARN("Expected `inner angle` entity in `color` line in `Lght` chunk ", nfo.id);
     }
-    SkipSpaces(rgb + 11, &rgb, end);
+    SkipSpaces(rgb + 11, &rgb);
     msh.inner_angle = fast_atof(&rgb);
 
     // skip the rest for we can't handle this kind of physically-based lighting information.
@@ -707,14 +703,14 @@ void COBImporter::ReadPolH_Ascii(Scene &out, LineSplitter &splitter, const Chunk
 
             for (unsigned int cur = 0; cur < cnt && ++splitter; ++cur) {
                 const char *s = splitter->c_str();
-                const char *end = splitter.getEnd();
+
                 aiVector3D &v = msh.vertex_positions[cur];
 
-                SkipSpaces(&s, end);
+                SkipSpaces(&s);
                 v.x = fast_atof(&s);
-                SkipSpaces(&s, end);
+                SkipSpaces(&s);
                 v.y = fast_atof(&s);
-                SkipSpaces(&s, end);
+                SkipSpaces(&s);
                 v.z = fast_atof(&s);
             }
         } else if (splitter.match_start("Texture Vertices")) {
@@ -723,13 +719,12 @@ void COBImporter::ReadPolH_Ascii(Scene &out, LineSplitter &splitter, const Chunk
 
             for (unsigned int cur = 0; cur < cnt && ++splitter; ++cur) {
                 const char *s = splitter->c_str();
-                const char *end = splitter.getEnd();
 
                 aiVector2D &v = msh.texture_coords[cur];
 
-                SkipSpaces(&s, end);
+                SkipSpaces(&s);
                 v.x = fast_atof(&s);
-                SkipSpaces(&s, end);
+                SkipSpaces(&s);
                 v.y = fast_atof(&s);
             }
         } else if (splitter.match_start("Faces")) {
@@ -754,9 +749,8 @@ void COBImporter::ReadPolH_Ascii(Scene &out, LineSplitter &splitter, const Chunk
                 face.material = strtoul10(splitter[6]);
 
                 const char *s = (++splitter)->c_str();
-                const char *end = splitter.getEnd();
                 for (size_t i = 0; i < face.indices.size(); ++i) {
-                    if (!SkipSpaces(&s, end)) {
+                    if (!SkipSpaces(&s)) {
                         ThrowException("Expected EOL token in Face entry");
                     }
                     if ('<' != *s++) {

code/AssetLib/COB/COBLoader.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 
 All rights reserved.
@@ -120,7 +120,7 @@ private:
     void ReadChunkInfo_Ascii(COB::ChunkInfo &out, const LineSplitter &splitter);
     void ReadBasicNodeInfo_Ascii(COB::Node &msh, LineSplitter &splitter, const COB::ChunkInfo &nfo);
     template <typename T>
-    void ReadFloat3Tuple_Ascii(T &fill, const char **in, const char *end);
+    void ReadFloat3Tuple_Ascii(T &fill, const char **in);
 
     void ReadPolH_Ascii(COB::Scene &out, LineSplitter &splitter, const COB::ChunkInfo &nfo);
     void ReadBitM_Ascii(COB::Scene &out, LineSplitter &splitter, const COB::ChunkInfo &nfo);

code/AssetLib/COB/COBScene.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 All rights reserved.
 

code/AssetLib/CSM/CSMLoader.cpp

@@ -3,7 +3,7 @@
 Open Asset Import Library (assimp)
 ---------------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 
 
@@ -82,20 +82,23 @@ CSMImporter::CSMImporter() : noSkeletonMesh(){
 
 // ------------------------------------------------------------------------------------------------
 // Returns whether the class can handle the format of the given file.
-bool CSMImporter::CanRead( const std::string& pFile, IOSystem* pIOHandler, bool /*checkSig*/) const {
+bool CSMImporter::CanRead( const std::string& pFile, IOSystem* pIOHandler, bool /*checkSig*/) const
+{
     static const char* tokens[] = {"$Filename"};
     return SearchFileHeaderForToken(pIOHandler,pFile,tokens,AI_COUNT_OF(tokens));
 }
 
 // ------------------------------------------------------------------------------------------------
 // Build a string of all file extensions supported
-const aiImporterDesc* CSMImporter::GetInfo () const {
+const aiImporterDesc* CSMImporter::GetInfo () const
+{
     return &desc;
 }
 
 // ------------------------------------------------------------------------------------------------
 // Setup configuration properties for the loader
-void CSMImporter::SetupProperties(const Importer* pImp) {
+void CSMImporter::SetupProperties(const Importer* pImp)
+{
     noSkeletonMesh = pImp->GetPropertyInteger(AI_CONFIG_IMPORT_NO_SKELETON_MESHES,0) != 0;
 }
 
@@ -115,29 +118,29 @@ void CSMImporter::InternReadFile( const std::string& pFile,
     std::vector<char> mBuffer2;
     TextFileToBuffer(file.get(),mBuffer2);
     const char* buffer = &mBuffer2[0];
-    const char *end = &mBuffer2[mBuffer2.size() - 1] + 1;
+
     std::unique_ptr<aiAnimation> anim(new aiAnimation());
     int first = 0, last = 0x00ffffff;
 
     // now process the file and look out for '$' sections
     while (true) {
-        SkipSpaces(&buffer, end);
+        SkipSpaces(&buffer);
         if ('\0' == *buffer)
             break;
 
         if ('$'  == *buffer)    {
             ++buffer;
             if (TokenMatchI(buffer,"firstframe",10))    {
-                SkipSpaces(&buffer, end);
+                SkipSpaces(&buffer);
                 first = strtol10(buffer,&buffer);
             }
             else if (TokenMatchI(buffer,"lastframe",9))     {
-                SkipSpaces(&buffer, end);
+                SkipSpaces(&buffer);
                 last = strtol10(buffer,&buffer);
             }
             else if (TokenMatchI(buffer,"rate",4))  {
-                SkipSpaces(&buffer, end);
+                SkipSpaces(&buffer);
-                float d = { 0.0f };
+                float d;
                 buffer = fast_atoreal_move<float>(buffer,d);
                 anim->mTicksPerSecond = d;
             }
@@ -145,8 +148,8 @@ void CSMImporter::InternReadFile( const std::string& pFile,
                 std::vector< aiNodeAnim* > anims_temp;
                 anims_temp.reserve(30);
                 while (true) {
-                    SkipSpaces(&buffer, end);
+                    SkipSpaces(&buffer);
-                    if (IsLineEnd(*buffer) && SkipSpacesAndLineEnd(&buffer, end) && *buffer == '$')
+                    if (IsLineEnd(*buffer) && SkipSpacesAndLineEnd(&buffer) && *buffer == '$')
                         break; // next section
 
                     // Construct a new node animation channel and setup its name
@@ -154,43 +157,41 @@ void CSMImporter::InternReadFile( const std::string& pFile,
                     aiNodeAnim* nda = anims_temp.back();
 
                     char* ot = nda->mNodeName.data;
-                    while (!IsSpaceOrNewLine(*buffer)) {
+                    while (!IsSpaceOrNewLine(*buffer))
                         *ot++ = *buffer++;
-                    }
 
                     *ot = '\0';
                     nda->mNodeName.length = static_cast<ai_uint32>(ot-nda->mNodeName.data);
                 }
 
                 anim->mNumChannels = static_cast<unsigned int>(anims_temp.size());
-                if (!anim->mNumChannels) {
+                if (!anim->mNumChannels)
                     throw DeadlyImportError("CSM: Empty $order section");
-                }
 
                 // copy over to the output animation
                 anim->mChannels = new aiNodeAnim*[anim->mNumChannels];
                 ::memcpy(anim->mChannels,&anims_temp[0],sizeof(aiNodeAnim*)*anim->mNumChannels);
-            } else if (TokenMatchI(buffer,"points",6)) {
+            }
-                if (!anim->mNumChannels) {
+            else if (TokenMatchI(buffer,"points",6))    {
+                if (!anim->mNumChannels)
                     throw DeadlyImportError("CSM: \'$order\' section is required to appear prior to \'$points\'");
-                }
 
                 // If we know how many frames we'll read, we can preallocate some storage
                 unsigned int alloc = 100;
-                if (last != 0x00ffffff) {
+                if (last != 0x00ffffff)
+                {
                     alloc = last-first;
                     alloc += alloc>>2u; // + 25%
-                    for (unsigned int i = 0; i < anim->mNumChannels; ++i) {
+                    for (unsigned int i = 0; i < anim->mNumChannels;++i)
                         anim->mChannels[i]->mPositionKeys = new aiVectorKey[alloc];
-                    }
                 }
 
                 unsigned int filled = 0;
 
                 // Now read all point data.
                 while (true) {
-                    SkipSpaces(&buffer, end);
+                    SkipSpaces(&buffer);
-                    if (IsLineEnd(*buffer) && (!SkipSpacesAndLineEnd(&buffer, end) || *buffer == '$'))   {
+                    if (IsLineEnd(*buffer) && (!SkipSpacesAndLineEnd(&buffer) || *buffer == '$'))   {
                         break; // next section
                     }
 
@@ -201,8 +202,8 @@ void CSMImporter::InternReadFile( const std::string& pFile,
                     for (unsigned int i = 0; i < anim->mNumChannels;++i)    {
 
                         aiNodeAnim* s = anim->mChannels[i];
-                        if (s->mNumPositionKeys == alloc)   {
+                        if (s->mNumPositionKeys == alloc)   { /* need to reallocate? */
-                            // need to reallocate?
+
                             aiVectorKey* old = s->mPositionKeys;
                             s->mPositionKeys = new aiVectorKey[s->mNumPositionKeys = alloc*2];
                             ::memcpy(s->mPositionKeys,old,sizeof(aiVectorKey)*alloc);
@@ -210,26 +211,24 @@ void CSMImporter::InternReadFile( const std::string& pFile,
                         }
 
                         // read x,y,z
-                        if (!SkipSpacesAndLineEnd(&buffer, end)) {
+                        if(!SkipSpacesAndLineEnd(&buffer))
                             throw DeadlyImportError("CSM: Unexpected EOF occurred reading sample x coord");
-                        }
 
                         if (TokenMatchI(buffer, "DROPOUT", 7))  {
                             // seems this is invalid marker data; at least the doc says it's possible
                             ASSIMP_LOG_WARN("CSM: Encountered invalid marker data (DROPOUT)");
-                        } else {
+                        }
+                        else    {
                             aiVectorKey* sub = s->mPositionKeys + s->mNumPositionKeys;
                             sub->mTime = (double)frame;
                             buffer = fast_atoreal_move<float>(buffer, (float&)sub->mValue.x);
 
-                            if (!SkipSpacesAndLineEnd(&buffer, end)) {
+                            if(!SkipSpacesAndLineEnd(&buffer))
                                 throw DeadlyImportError("CSM: Unexpected EOF occurred reading sample y coord");
-                            }
                             buffer = fast_atoreal_move<float>(buffer, (float&)sub->mValue.y);
 
-                            if (!SkipSpacesAndLineEnd(&buffer, end)) {
+                            if(!SkipSpacesAndLineEnd(&buffer))
                                 throw DeadlyImportError("CSM: Unexpected EOF occurred reading sample z coord");
-                            }
                             buffer = fast_atoreal_move<float>(buffer, (float&)sub->mValue.z);
 
                             ++s->mNumPositionKeys;
@@ -237,22 +236,22 @@ void CSMImporter::InternReadFile( const std::string& pFile,
                     }
 
                     // update allocation granularity
-                    if (filled == alloc) {
+                    if (filled == alloc)
                         alloc *= 2;
-                    }
 
                     ++filled;
                 }
                 // all channels must be complete in order to continue safely.
                 for (unsigned int i = 0; i < anim->mNumChannels;++i)    {
-                    if (!anim->mChannels[i]->mNumPositionKeys) {
+
+                    if (!anim->mChannels[i]->mNumPositionKeys)
                         throw DeadlyImportError("CSM: Invalid marker track");
-                    }
                 }
             }
-        } else {
+        }
+        else    {
             // advance to the next line
-            SkipLine(&buffer, end);
+            SkipLine(&buffer);
         }
     }
 
@@ -266,7 +265,7 @@ void CSMImporter::InternReadFile( const std::string& pFile,
     pScene->mRootNode->mNumChildren = anim->mNumChannels;
     pScene->mRootNode->mChildren = new aiNode* [anim->mNumChannels];
 
-    for (unsigned int i = 0; i < anim->mNumChannels;++i) {
+    for (unsigned int i = 0; i < anim->mNumChannels;++i)    {
         aiNodeAnim* na = anim->mChannels[i];
 
         aiNode* nd  = pScene->mRootNode->mChildren[i] = new aiNode();

code/AssetLib/CSM/CSMLoader.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 All rights reserved.
 

code/AssetLib/Collada/ColladaExporter.cpp

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 
 All rights reserved.

code/AssetLib/Collada/ColladaExporter.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 
 All rights reserved.

code/AssetLib/Collada/ColladaHelper.cpp

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 All rights reserved.
 

code/AssetLib/Collada/ColladaHelper.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 All rights reserved.
 

code/AssetLib/Collada/ColladaLoader.cpp

@@ -3,7 +3,7 @@
 Open Asset Import Library (assimp)
 ---------------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 All rights reserved.
 
@@ -247,9 +247,7 @@ aiNode *ColladaLoader::BuildHierarchy(const ColladaParser &pParser, const Collad
 
     // add children. first the *real* ones
     node->mNumChildren = static_cast<unsigned int>(pNode->mChildren.size() + instances.size());
-    if (node->mNumChildren != 0) {
+    node->mChildren = new aiNode *[node->mNumChildren];
-        node->mChildren = new aiNode * [node->mNumChildren];
-    }
 
     for (size_t a = 0; a < pNode->mChildren.size(); ++a) {
         node->mChildren[a] = BuildHierarchy(pParser, pNode->mChildren[a]);
@@ -625,14 +623,16 @@ aiMesh *ColladaLoader::CreateMesh(const ColladaParser &pParser, const Mesh *pSrc
     }
 
     // same for texture coords, as many as we have
-    for (size_t a = 0; a < AI_MAX_NUMBER_OF_TEXTURECOORDS; ++a) {
+    // empty slots are not allowed, need to pack and adjust UV indexes accordingly
+    for (size_t a = 0, real = 0; a < AI_MAX_NUMBER_OF_TEXTURECOORDS; ++a) {
         if (pSrcMesh->mTexCoords[a].size() >= pStartVertex + numVertices) {
-            dstMesh->mTextureCoords[a] = new aiVector3D[numVertices];
+            dstMesh->mTextureCoords[real] = new aiVector3D[numVertices];
             for (size_t b = 0; b < numVertices; ++b) {
-                dstMesh->mTextureCoords[a][b] = pSrcMesh->mTexCoords[a][pStartVertex + b];
+                dstMesh->mTextureCoords[real][b] = pSrcMesh->mTexCoords[a][pStartVertex + b];
             }
 
-            dstMesh->mNumUVComponents[a] = pSrcMesh->mNumUVComponents[a];
+            dstMesh->mNumUVComponents[real] = pSrcMesh->mNumUVComponents[a];
+            ++real;
         }
     }
 

code/AssetLib/Collada/ColladaLoader.h

@@ -4,7 +4,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 
 All rights reserved.

code/AssetLib/Collada/ColladaParser.cpp

@@ -3,7 +3,7 @@
 Open Asset Import Library (assimp)
 ---------------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 All rights reserved.
 
@@ -635,8 +635,7 @@ void ColladaParser::ReadController(XmlNode &node, Collada::Controller &controlle
         const std::string &currentName = currentNode.name();
         if (currentName == "morph") {
             controller.mType = Morph;
-            std::string id = currentNode.attribute("source").as_string();
+            controller.mMeshId = currentNode.attribute("source").as_string();
-            controller.mMeshId = id.substr(1, id.size() - 1);
             int methodIndex = currentNode.attribute("method").as_int();
             if (methodIndex > 0) {
                 std::string method;
@@ -655,13 +654,12 @@ void ColladaParser::ReadController(XmlNode &node, Collada::Controller &controlle
             std::string v;
             XmlParser::getValueAsString(currentNode, v);
             const char *content = v.c_str();
-            const char *end = content + v.size();
             for (unsigned int a = 0; a < 16; a++) {
-                SkipSpacesAndLineEnd(&content, end);
+                SkipSpacesAndLineEnd(&content);
                 // read a number
                 content = fast_atoreal_move<ai_real>(content, controller.mBindShapeMatrix[a]);
                 // skip whitespace after it
-                SkipSpacesAndLineEnd(&content, end);
+                SkipSpacesAndLineEnd(&content);
             }
         } else if (currentName == "source") {
             ReadSource(currentNode);
@@ -742,9 +740,7 @@ void ColladaParser::ReadControllerWeights(XmlNode &node, Collada::Controller &pC
                 throw DeadlyImportError("Unknown semantic \"", attrSemantic, "\" in <vertex_weights> data <input> element");
             }
         } else if (currentName == "vcount" && vertexCount > 0) {
-            const std::string stdText = currentNode.text().as_string();
+            const char *text = currentNode.text().as_string();
-            const char *text = stdText.c_str();
-            const char *end = text + stdText.size();
             size_t numWeights = 0;
             for (std::vector<size_t>::iterator it = pController.mWeightCounts.begin(); it != pController.mWeightCounts.end(); ++it) {
                 if (*text == 0) {
@@ -753,7 +749,7 @@ void ColladaParser::ReadControllerWeights(XmlNode &node, Collada::Controller &pC
 
                 *it = strtoul10(text, &text);
                 numWeights += *it;
-                SkipSpacesAndLineEnd(&text, end);
+                SkipSpacesAndLineEnd(&text);
             }
             // reserve weight count
             pController.mWeights.resize(numWeights);
@@ -762,19 +758,18 @@ void ColladaParser::ReadControllerWeights(XmlNode &node, Collada::Controller &pC
             std::string stdText;
             XmlParser::getValueAsString(currentNode, stdText);
             const char *text = stdText.c_str();
-            const char *end = text + stdText.size();
             for (std::vector<std::pair<size_t, size_t>>::iterator it = pController.mWeights.begin(); it != pController.mWeights.end(); ++it) {
                 if (text == nullptr) {
                     throw DeadlyImportError("Out of data while reading <vertex_weights>");
                 }
-                SkipSpacesAndLineEnd(&text, end);
+                SkipSpacesAndLineEnd(&text);
                 it->first = strtoul10(text, &text);
-                SkipSpacesAndLineEnd(&text, end);
+                SkipSpacesAndLineEnd(&text);
                 if (*text == 0) {
                     throw DeadlyImportError("Out of data while reading <vertex_weights>");
                 }
                 it->second = strtoul10(text, &text);
-                SkipSpacesAndLineEnd(&text, end);
+                SkipSpacesAndLineEnd(&text);
             }
         }
     }
@@ -819,38 +814,38 @@ void ColladaParser::ReadImage(XmlNode &node, Collada::Image &pImage) {
                 if (!pImage.mFileName.length()) {
                     pImage.mFileName = "unknown_texture";
                 }
-            } else if (mFormat == FV_1_5_n) {
+            }
-                std::string value;
+        } else if (mFormat == FV_1_5_n) {
-                XmlNode refChild = currentNode.child("ref");
+            std::string value;
-                XmlNode hexChild = currentNode.child("hex");
+            XmlNode refChild = currentNode.child("ref");
-                if (refChild) {
+            XmlNode hexChild = currentNode.child("hex");
-                    // element content is filename - hopefully
+            if (refChild) {
-                    if (XmlParser::getValueAsString(refChild, value)) {
+                // element content is filename - hopefully
-                        aiString filepath(value);
+                if (XmlParser::getValueAsString(refChild, value)) {
-                        UriDecodePath(filepath);
+                    aiString filepath(value);
-                        pImage.mFileName = filepath.C_Str();
+                    UriDecodePath(filepath);
-                    }
+                    pImage.mFileName = filepath.C_Str();
-                } else if (hexChild && !pImage.mFileName.length()) {
+                }
-                    // embedded image. get format
+            } else if (hexChild && !pImage.mFileName.length()) {
-                    pImage.mEmbeddedFormat = hexChild.attribute("format").as_string();
+                // embedded image. get format
-                    if (pImage.mEmbeddedFormat.empty()) {
+                pImage.mEmbeddedFormat = hexChild.attribute("format").as_string();
-                        ASSIMP_LOG_WARN("Collada: Unknown image file format");
+                if (pImage.mEmbeddedFormat.empty()) {
-                    }
+                    ASSIMP_LOG_WARN("Collada: Unknown image file format");
+                }
 
-                    XmlParser::getValueAsString(hexChild, value);
+                XmlParser::getValueAsString(hexChild, value);
-                    const char *data = value.c_str();
+                const char *data = value.c_str();
-                    // hexadecimal-encoded binary octets. First of all, find the
+                // hexadecimal-encoded binary octets. First of all, find the
-                    // required buffer size to reserve enough storage.
+                // required buffer size to reserve enough storage.
-                    const char *cur = data;
+                const char *cur = data;
-                    while (!IsSpaceOrNewLine(*cur)) {
+                while (!IsSpaceOrNewLine(*cur)) {
-                        ++cur;
+                    ++cur;
-                    }
+                }
 
-                    const unsigned int size = (unsigned int)(cur - data) * 2;
+                const unsigned int size = (unsigned int)(cur - data) * 2;
-                    pImage.mImageData.resize(size);
+                pImage.mImageData.resize(size);
-                    for (unsigned int i = 0; i < size; ++i) {
+                for (unsigned int i = 0; i < size; ++i) {
-                        pImage.mImageData[i] = HexOctetToDecimal(data + (i << 1));
+                    pImage.mImageData[i] = HexOctetToDecimal(data + (i << 1));
-                    }
                 }
             }
         }
@@ -957,45 +952,44 @@ void ColladaParser::ReadLight(XmlNode &node, Collada::Light &pLight) {
             std::string v;
             XmlParser::getValueAsString(currentNode, v);
             const char *content = v.c_str();
-            const char *end = content + v.size();
 
             content = fast_atoreal_move<ai_real>(content, (ai_real &)pLight.mColor.r);
-            SkipSpacesAndLineEnd(&content, end);
+            SkipSpacesAndLineEnd(&content);
 
             content = fast_atoreal_move<ai_real>(content, (ai_real &)pLight.mColor.g);
-            SkipSpacesAndLineEnd(&content, end);
+            SkipSpacesAndLineEnd(&content);
 
             content = fast_atoreal_move<ai_real>(content, (ai_real &)pLight.mColor.b);
-            SkipSpacesAndLineEnd(&content, end);
+            SkipSpacesAndLineEnd(&content);
         } else if (currentName == "constant_attenuation") {
-            XmlParser::getValueAsReal(currentNode, pLight.mAttConstant);
+            XmlParser::getValueAsFloat(currentNode, pLight.mAttConstant);
         } else if (currentName == "linear_attenuation") {
-            XmlParser::getValueAsReal(currentNode, pLight.mAttLinear);
+            XmlParser::getValueAsFloat(currentNode, pLight.mAttLinear);
         } else if (currentName == "quadratic_attenuation") {
-            XmlParser::getValueAsReal(currentNode, pLight.mAttQuadratic);
+            XmlParser::getValueAsFloat(currentNode, pLight.mAttQuadratic);
         } else if (currentName == "falloff_angle") {
-            XmlParser::getValueAsReal(currentNode, pLight.mFalloffAngle);
+            XmlParser::getValueAsFloat(currentNode, pLight.mFalloffAngle);
         } else if (currentName == "falloff_exponent") {
-            XmlParser::getValueAsReal(currentNode, pLight.mFalloffExponent);
+            XmlParser::getValueAsFloat(currentNode, pLight.mFalloffExponent);
         }
         // FCOLLADA extensions
         // -------------------------------------------------------
         else if (currentName == "outer_cone") {
-            XmlParser::getValueAsReal(currentNode, pLight.mOuterAngle);
+            XmlParser::getValueAsFloat(currentNode, pLight.mOuterAngle);
         } else if (currentName == "penumbra_angle") { // this one is deprecated, now calculated using outer_cone
-            XmlParser::getValueAsReal(currentNode, pLight.mPenumbraAngle);
+            XmlParser::getValueAsFloat(currentNode, pLight.mPenumbraAngle);
         } else if (currentName == "intensity") {
-            XmlParser::getValueAsReal(currentNode, pLight.mIntensity);
+            XmlParser::getValueAsFloat(currentNode, pLight.mIntensity);
         }
         else if (currentName == "falloff") {
-            XmlParser::getValueAsReal(currentNode, pLight.mOuterAngle);
+            XmlParser::getValueAsFloat(currentNode, pLight.mOuterAngle);
         } else if (currentName == "hotspot_beam") {
-            XmlParser::getValueAsReal(currentNode, pLight.mFalloffAngle);
+            XmlParser::getValueAsFloat(currentNode, pLight.mFalloffAngle);
         }
         // OpenCOLLADA extensions
         // -------------------------------------------------------
         else if (currentName == "decay_falloff") {
-            XmlParser::getValueAsReal(currentNode, pLight.mOuterAngle);
+            XmlParser::getValueAsFloat(currentNode, pLight.mOuterAngle);
         }
     }
 }
@@ -1010,15 +1004,15 @@ void ColladaParser::ReadCamera(XmlNode &node, Collada::Camera &camera) {
         if (currentName == "orthographic") {
             camera.mOrtho = true;
         } else if (currentName == "xfov" || currentName == "xmag") {
-            XmlParser::getValueAsReal(currentNode, camera.mHorFov);
+            XmlParser::getValueAsFloat(currentNode, camera.mHorFov);
         } else if (currentName == "yfov" || currentName == "ymag") {
-            XmlParser::getValueAsReal(currentNode, camera.mVerFov);
+            XmlParser::getValueAsFloat(currentNode, camera.mVerFov);
         } else if (currentName == "aspect_ratio") {
-            XmlParser::getValueAsReal(currentNode, camera.mAspect);
+            XmlParser::getValueAsFloat(currentNode, camera.mAspect);
         } else if (currentName == "znear") {
-            XmlParser::getValueAsReal(currentNode, camera.mZNear);
+            XmlParser::getValueAsFloat(currentNode, camera.mZNear);
         } else if (currentName == "zfar") {
-            XmlParser::getValueAsReal(currentNode, camera.mZFar);
+            XmlParser::getValueAsFloat(currentNode, camera.mZFar);
         }
     }
 }
@@ -1170,15 +1164,15 @@ void ColladaParser::ReadSamplerProperties(XmlNode &node, Sampler &out) {
         } else if (currentName == "mirrorV") {
             XmlParser::getValueAsBool(currentNode, out.mMirrorV);
         } else if (currentName == "repeatU") {
-            XmlParser::getValueAsReal(currentNode, out.mTransform.mScaling.x);
+            XmlParser::getValueAsFloat(currentNode, out.mTransform.mScaling.x);
         } else if (currentName == "repeatV") {
-            XmlParser::getValueAsReal(currentNode, out.mTransform.mScaling.y);
+            XmlParser::getValueAsFloat(currentNode, out.mTransform.mScaling.y);
         } else if (currentName == "offsetU") {
-            XmlParser::getValueAsReal(currentNode, out.mTransform.mTranslation.x);
+            XmlParser::getValueAsFloat(currentNode, out.mTransform.mTranslation.x);
         } else if (currentName == "offsetV") {
-            XmlParser::getValueAsReal(currentNode, out.mTransform.mTranslation.y);
+            XmlParser::getValueAsFloat(currentNode, out.mTransform.mTranslation.y);
         } else if (currentName == "rotateUV") {
-            XmlParser::getValueAsReal(currentNode, out.mTransform.mRotation);
+            XmlParser::getValueAsFloat(currentNode, out.mTransform.mRotation);
         } else if (currentName == "blend_mode") {
             std::string v;
             XmlParser::getValueAsString(currentNode, v);
@@ -1198,14 +1192,14 @@ void ColladaParser::ReadSamplerProperties(XmlNode &node, Sampler &out) {
         // OKINO extensions
         // -------------------------------------------------------
         else if (currentName == "weighting") {
-            XmlParser::getValueAsReal(currentNode, out.mWeighting);
+            XmlParser::getValueAsFloat(currentNode, out.mWeighting);
         } else if (currentName == "mix_with_previous_layer") {
-            XmlParser::getValueAsReal(currentNode, out.mMixWithPrevious);
+            XmlParser::getValueAsFloat(currentNode, out.mMixWithPrevious);
         }
         // MAX3D extensions
         // -------------------------------------------------------
         else if (currentName == "amount") {
-            XmlParser::getValueAsReal(currentNode, out.mWeighting);
+            XmlParser::getValueAsFloat(currentNode, out.mWeighting);
         }
     }
 }
@@ -1226,19 +1220,18 @@ void ColladaParser::ReadEffectColor(XmlNode &node, aiColor4D &pColor, Sampler &p
             std::string v;
             XmlParser::getValueAsString(currentNode, v);
             const char *content = v.c_str();
-            const char *end = v.c_str() + v.size() + 1; 
 
             content = fast_atoreal_move<ai_real>(content, (ai_real &)pColor.r);
-            SkipSpacesAndLineEnd(&content, end);
+            SkipSpacesAndLineEnd(&content);
 
             content = fast_atoreal_move<ai_real>(content, (ai_real &)pColor.g);
-            SkipSpacesAndLineEnd(&content, end);
+            SkipSpacesAndLineEnd(&content);
 
             content = fast_atoreal_move<ai_real>(content, (ai_real &)pColor.b);
-            SkipSpacesAndLineEnd(&content, end);
+            SkipSpacesAndLineEnd(&content);
 
             content = fast_atoreal_move<ai_real>(content, (ai_real &)pColor.a);
-            SkipSpacesAndLineEnd(&content, end);
+            SkipSpacesAndLineEnd(&content);
         } else if (currentName == "texture") {
             // get name of source texture/sampler
             XmlParser::getStdStrAttribute(currentNode, "texture", pSampler.mName);
@@ -1265,13 +1258,13 @@ void ColladaParser::ReadEffectColor(XmlNode &node, aiColor4D &pColor, Sampler &p
 
 // ------------------------------------------------------------------------------------------------
 // Reads an effect entry containing a float
-void ColladaParser::ReadEffectFloat(XmlNode &node, ai_real &pReal) {
+void ColladaParser::ReadEffectFloat(XmlNode &node, ai_real &pFloat) {
-    pReal = 0.f;
+    pFloat = 0.f;
     XmlNode floatNode = node.child("float");
     if (floatNode.empty()) {
         return;
     }
-    XmlParser::getValueAsReal(floatNode, pReal);
+    XmlParser::getValueAsFloat(floatNode, pFloat);
 }
 
 // ------------------------------------------------------------------------------------------------
@@ -1281,7 +1274,9 @@ void ColladaParser::ReadEffectParam(XmlNode &node, Collada::EffectParam &pParam)
         return;
     }
 
-    for (XmlNode &currentNode : node.children()) {
+    XmlNodeIterator xmlIt(node, XmlNodeIterator::PreOrderMode);
+    XmlNode currentNode;
+    while (xmlIt.getNext(currentNode)) {
         const std::string &currentName = currentNode.name();
         if (currentName == "surface") {
             // image ID given inside <init_from> tags
@@ -1294,24 +1289,22 @@ void ColladaParser::ReadEffectParam(XmlNode &node, Collada::EffectParam &pParam)
             }
         } else if (currentName == "sampler2D" && (FV_1_4_n == mFormat || FV_1_3_n == mFormat)) {
             // surface ID is given inside <source> tags
-            XmlNode source = currentNode.child("source");
+            const char *content = currentNode.value();
-            if (source) {
+            pParam.mType = Param_Sampler;
-                std::string v;
+            pParam.mReference = content;
-                XmlParser::getValueAsString(source, v);
-                pParam.mType = Param_Sampler;
-                pParam.mReference = v.c_str();
-            }
         } else if (currentName == "sampler2D") {
             // surface ID is given inside <instance_image> tags
-            XmlNode instance_image = currentNode.child("instance_image");
+            std::string url;
-            if (instance_image) {
+            XmlParser::getStdStrAttribute(currentNode, "url", url);
-                std::string url;
+            if (url[0] != '#') {
-                XmlParser::getStdStrAttribute(instance_image, "url", url);
+                throw DeadlyImportError("Unsupported URL format in instance_image");
-                if (url[0] != '#') {
+            }
-                    throw DeadlyImportError("Unsupported URL format in instance_image");
+            pParam.mType = Param_Sampler;
-                }
+            pParam.mReference = url.c_str() + 1;
-                pParam.mType = Param_Sampler;
+        } else if (currentName == "source") {
-                pParam.mReference = url.c_str() + 1;
+            const char *source = currentNode.child_value();
+            if (nullptr != source) {
+                pParam.mReference = source;
             }
         }
     }
@@ -1352,7 +1345,6 @@ void ColladaParser::ReadGeometry(XmlNode &node, Collada::Mesh &pMesh) {
     if (node.empty()) {
         return;
     }
-    
     for (XmlNode &currentNode : node.children()) {
         const std::string &currentName = currentNode.name();
         if (currentName == "mesh") {
@@ -1423,7 +1415,6 @@ void ColladaParser::ReadDataArray(XmlNode &node) {
     XmlParser::getValueAsString(node, v);
     v = ai_trim(v);
     const char *content = v.c_str();
-    const char *end = content + v.size();
 
     // read values and store inside an array in the data library
     mDataLibrary[id] = Data();
@@ -1442,13 +1433,11 @@ void ColladaParser::ReadDataArray(XmlNode &node) {
                 }
 
                 s.clear();
-                while (!IsSpaceOrNewLine(*content)) {
+                while (!IsSpaceOrNewLine(*content))
-                    s += *content;
+                    s += *content++;
-                    content++;
-                }
                 data.mStrings.push_back(s);
 
-                SkipSpacesAndLineEnd(&content, end);
+                SkipSpacesAndLineEnd(&content);
             }
         } else {
             data.mValues.reserve(count);
@@ -1463,7 +1452,7 @@ void ColladaParser::ReadDataArray(XmlNode &node) {
                 content = fast_atoreal_move<ai_real>(content, value);
                 data.mValues.push_back(value);
                 // skip whitespace after it
-                SkipSpacesAndLineEnd(&content, end);
+                SkipSpacesAndLineEnd(&content);
             }
         }
     }
@@ -1628,10 +1617,8 @@ void ColladaParser::ReadIndexData(XmlNode &node, Mesh &pMesh) {
                     std::string v;
                     XmlParser::getValueAsString(currentNode, v);
                     const char *content = v.c_str();
-                    const char *end = content + v.size();
-
                     vcount.reserve(numPrimitives);
-                    SkipSpacesAndLineEnd(&content, end);
+                    SkipSpacesAndLineEnd(&content);
                     for (unsigned int a = 0; a < numPrimitives; a++) {
                         if (*content == 0) {
                             throw DeadlyImportError("Expected more values while reading <vcount> contents.");
@@ -1639,7 +1626,7 @@ void ColladaParser::ReadIndexData(XmlNode &node, Mesh &pMesh) {
                         // read a number
                         vcount.push_back((size_t)strtoul10(content, &content));
                         // skip whitespace after it
-                        SkipSpacesAndLineEnd(&content, end);
+                        SkipSpacesAndLineEnd(&content);
                     }
                 }
             }
@@ -1748,16 +1735,14 @@ size_t ColladaParser::ReadPrimitives(XmlNode &node, Mesh &pMesh, std::vector<Inp
         std::string v;
         XmlParser::getValueAsString(node, v);
         const char *content = v.c_str();
-        const char *end = content + v.size();
+        SkipSpacesAndLineEnd(&content);
-
-        SkipSpacesAndLineEnd(&content, end);
         while (*content != 0) {
             // read a value.
             // Hack: (thom) Some exporters put negative indices sometimes. We just try to carry on anyways.
             int value = std::max(0, strtol10(content, &content));
             indices.push_back(size_t(value));
             // skip whitespace after it
-            SkipSpacesAndLineEnd(&content, end);
+            SkipSpacesAndLineEnd(&content);
         }
     }
 
@@ -1787,10 +1772,6 @@ size_t ColladaParser::ReadPrimitives(XmlNode &node, Mesh &pMesh, std::vector<Inp
         const Accessor *acc = input.mResolved;
         if (!acc->mData) {
             acc->mData = &ResolveLibraryReference(mDataLibrary, acc->mSource);
-            const size_t dataSize = acc->mOffset + acc->mCount * acc->mStride;
-            if (dataSize > acc->mData->mValues.size()) {
-                throw DeadlyImportError("Not enough data for accessor");
-            }
         }
     }
     // and the same for the per-index channels
@@ -1815,19 +1796,13 @@ size_t ColladaParser::ReadPrimitives(XmlNode &node, Mesh &pMesh, std::vector<Inp
         const Accessor *acc = input.mResolved;
         if (!acc->mData) {
             acc->mData = &ResolveLibraryReference(mDataLibrary, acc->mSource);
-            const size_t dataSize = acc->mOffset + acc->mCount * acc->mStride;
-            if (dataSize > acc->mData->mValues.size()) {
-                throw DeadlyImportError("Not enough data for accessor");
-            }
         }
     }
 
     // For continued primitives, the given count does not come all in one <p>, but only one primitive per <p>
     size_t numPrimitives = pNumPrimitives;
-    if (pPrimType == Prim_TriFans || pPrimType == Prim_Polygon) {
+    if (pPrimType == Prim_TriFans || pPrimType == Prim_Polygon)
         numPrimitives = 1;
-    }
-
     // For continued primitives, the given count is actually the number of <p>'s inside the parent tag
     if (pPrimType == Prim_TriStrips) {
         size_t numberOfVertices = indices.size() / numOffsets;
@@ -1892,7 +1867,7 @@ size_t ColladaParser::ReadPrimitives(XmlNode &node, Mesh &pMesh, std::vector<Inp
 
 ///@note This function won't work correctly if both PerIndex and PerVertex channels have same channels.
 ///For example if TEXCOORD present in both <vertices> and <polylist> tags this function will create wrong uv coordinates.
-///It's not clear from COLLADA documentation whether this is allowed or not. For now only exporter fixed to avoid such behavior
+///It's not clear from COLLADA documentation is this allowed or not. For now only exporter fixed to avoid such behavior
 void ColladaParser::CopyVertex(size_t currentVertex, size_t numOffsets, size_t numPoints, size_t perVertexOffset, Mesh &pMesh,
         std::vector<InputChannel> &pPerIndexChannels, size_t currentPrimitive, const std::vector<size_t> &indices) {
     // calculate the base offset of the vertex whose attributes we ant to copy
@@ -2191,15 +2166,15 @@ void ColladaParser::ReadNodeTransformation(XmlNode &node, Node *pNode, Transform
     }
 
     // how many parameters to read per transformation type
-    static constexpr unsigned int sNumParameters[] = { 9, 4, 3, 3, 7, 16 };
+    static const unsigned int sNumParameters[] = { 9, 4, 3, 3, 7, 16 };
     std::string value;
     XmlParser::getValueAsString(node, value);
     const char *content = value.c_str();
-    const char *end = value.c_str() + value.size();
+
     // read as many parameters and store in the transformation
     for (unsigned int a = 0; a < sNumParameters[pType]; a++) {
         // skip whitespace before the number
-        SkipSpacesAndLineEnd(&content, end);
+        SkipSpacesAndLineEnd(&content);
         // read a number
         content = fast_atoreal_move<ai_real>(content, tf.f[a]);
     }
@@ -2293,9 +2268,9 @@ void ColladaParser::ReadNodeGeometry(XmlNode &node, Node *pNode) {
                             urlMat++;
 
                         s.mMatName = urlMat;
-                        ReadMaterialVertexInputBinding(instanceMatNode, s);
                         // store the association
                         instance.mMaterials[group] = s;
+                        ReadMaterialVertexInputBinding(instanceMatNode, s);
                     }
                 }
             }

code/AssetLib/Collada/ColladaParser.h

@@ -2,7 +2,7 @@
  Open Asset Import Library (assimp)
  ----------------------------------------------------------------------
 
- Copyright (c) 2006-2024, assimp team
+ Copyright (c) 2006-2022, assimp team
 
  All rights reserved.
 

code/AssetLib/DXF/DXFHelper.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 
 All rights reserved.

code/AssetLib/DXF/DXFLoader.cpp

@@ -3,7 +3,7 @@
 Open Asset Import Library (assimp)
 ---------------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 All rights reserved.
 
@@ -43,6 +43,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *  @brief Implementation of the DXF importer class
  */
 
+
 #ifndef ASSIMP_BUILD_NO_DXF_IMPORTER
 
 #include "AssetLib/DXF/DXFLoader.h"
@@ -67,267 +68,25 @@ static constexpr size_t AI_DXF_BINARY_IDENT_LEN = sizeof AI_DXF_BINARY_IDENT;
 // default vertex color that all uncolored vertices will receive
 static const aiColor4D AI_DXF_DEFAULT_COLOR(aiColor4D(0.6f, 0.6f, 0.6f, 0.6f));
 
-// color indices for DXF - 256 are supported, the table is
+// color indices for DXF - 16 are supported, the table is
-// taken directly from the AutoCad Index (ACI) table
+// taken directly from the DXF spec.
-// https://gohtx.com/acadcolors.php
+static const aiColor4D g_aclrDxfIndexColors[] = {
-//STH 2024-0126
+    aiColor4D(0.6f, 0.6f, 0.6f, 1.0f),
-static const aiColor4D g_aclrDxfIndexColors[256] = {
+    aiColor4D (1.0f, 0.0f, 0.0f, 1.0f), // red
-    aiColor4D (0.0f, 0.0f ,0.0f, 1.0f), //dxf color code 0
+    aiColor4D (0.0f, 1.0f, 0.0f, 1.0f), // green
-    aiColor4D (1.0f, 0.0f ,0.0f, 1.0f), //dxf color code 1
+    aiColor4D (0.0f, 0.0f, 1.0f, 1.0f), // blue
-    aiColor4D (1.0f, 1.0f ,0.0f, 1.0f), //dxf color code 2
+    aiColor4D (0.3f, 1.0f, 0.3f, 1.0f), // light green
-    aiColor4D (0.0f, 1.0f ,0.0f, 1.0f), //dxf color code 3
+    aiColor4D (0.3f, 0.3f, 1.0f, 1.0f), // light blue
-    aiColor4D (0.0f, 1.0f ,1.0f, 1.0f), //dxf color code 4
+    aiColor4D (1.0f, 0.3f, 0.3f, 1.0f), // light red
-    aiColor4D (0.0f, 0.0f ,1.0f, 1.0f), //dxf color code 5
+    aiColor4D (1.0f, 0.0f, 1.0f, 1.0f), // pink
-    aiColor4D (1.0f, 0.0f ,1.0f, 1.0f), //dxf color code 6
+    aiColor4D (1.0f, 0.6f, 0.0f, 1.0f), // orange
-    aiColor4D (1.0f, 1.0f ,1.0f, 1.0f), //dxf color code 7
+    aiColor4D (0.6f, 0.3f, 0.0f, 1.0f), // dark orange
-    aiColor4D (0.3f, 0.3f ,0.3f, 1.0f), //dxf color code 8
+    aiColor4D (1.0f, 1.0f, 0.0f, 1.0f), // yellow
-    aiColor4D (0.5f, 0.5f ,0.5f, 1.0f), //dxf color code 9
+    aiColor4D (0.3f, 0.3f, 0.3f, 1.0f), // dark gray
-    aiColor4D (1.0f, 0.0f ,0.0f, 1.0f), //dxf color code 10
+    aiColor4D (0.8f, 0.8f, 0.8f, 1.0f), // light gray
-    aiColor4D (1.0f, 0.7f ,0.7f, 1.0f), //dxf color code 11
+    aiColor4D (0.0f, 00.f, 0.0f, 1.0f), // black
-    aiColor4D (0.7f, 0.0f ,0.0f, 1.0f), //dxf color code 12
+    aiColor4D (1.0f, 1.0f, 1.0f, 1.0f), // white
-    aiColor4D (0.7f, 0.5f ,0.5f, 1.0f), //dxf color code 13
+    aiColor4D (0.6f, 0.0f, 1.0f, 1.0f)  // violet
-    aiColor4D (0.5f, 0.0f ,0.0f, 1.0f), //dxf color code 14
-    aiColor4D (0.5f, 0.3f ,0.3f, 1.0f), //dxf color code 15
-    aiColor4D (0.4f, 0.0f ,0.0f, 1.0f), //dxf color code 16
-    aiColor4D (0.4f, 0.3f ,0.3f, 1.0f), //dxf color code 17
-    aiColor4D (0.3f, 0.0f ,0.0f, 1.0f), //dxf color code 18
-    aiColor4D (0.3f, 0.2f ,0.2f, 1.0f), //dxf color code 19
-    aiColor4D (1.0f, 0.2f ,0.0f, 1.0f), //dxf color code 20
-    aiColor4D (1.0f, 0.7f ,0.7f, 1.0f), //dxf color code 21
-    aiColor4D (0.7f, 0.2f ,0.0f, 1.0f), //dxf color code 22
-    aiColor4D (0.7f, 0.6f ,0.5f, 1.0f), //dxf color code 23
-    aiColor4D (0.5f, 0.1f ,0.0f, 1.0f), //dxf color code 24
-    aiColor4D (0.5f, 0.4f ,0.3f, 1.0f), //dxf color code 25
-    aiColor4D (0.4f, 0.1f ,0.0f, 1.0f), //dxf color code 26
-    aiColor4D (0.4f, 0.3f ,0.3f, 1.0f), //dxf color code 27
-    aiColor4D (0.3f, 0.1f ,0.0f, 1.0f), //dxf color code 28
-    aiColor4D (0.3f, 0.2f ,0.2f, 1.0f), //dxf color code 29
-    aiColor4D (1.0f, 0.5f ,0.0f, 1.0f), //dxf color code 30
-    aiColor4D (1.0f, 0.8f ,0.7f, 1.0f), //dxf color code 31
-    aiColor4D (0.7f, 0.4f ,0.0f, 1.0f), //dxf color code 32
-    aiColor4D (0.7f, 0.6f ,0.5f, 1.0f), //dxf color code 33
-    aiColor4D (0.5f, 0.3f ,0.0f, 1.0f), //dxf color code 34
-    aiColor4D (0.5f, 0.4f ,0.3f, 1.0f), //dxf color code 35
-    aiColor4D (0.4f, 0.2f ,0.0f, 1.0f), //dxf color code 36
-    aiColor4D (0.4f, 0.3f ,0.3f, 1.0f), //dxf color code 37
-    aiColor4D (0.3f, 0.2f ,0.0f, 1.0f), //dxf color code 38
-    aiColor4D (0.3f, 0.3f ,0.2f, 1.0f), //dxf color code 39
-    aiColor4D (1.0f, 0.7f ,0.0f, 1.0f), //dxf color code 40
-    aiColor4D (1.0f, 0.9f ,0.7f, 1.0f), //dxf color code 41
-    aiColor4D (0.7f, 0.6f ,0.0f, 1.0f), //dxf color code 42
-    aiColor4D (0.7f, 0.7f ,0.5f, 1.0f), //dxf color code 43
-    aiColor4D (0.5f, 0.4f ,0.0f, 1.0f), //dxf color code 44
-    aiColor4D (0.5f, 0.5f ,0.3f, 1.0f), //dxf color code 45
-    aiColor4D (0.4f, 0.3f ,0.0f, 1.0f), //dxf color code 46
-    aiColor4D (0.4f, 0.4f ,0.3f, 1.0f), //dxf color code 47
-    aiColor4D (0.3f, 0.2f ,0.0f, 1.0f), //dxf color code 48
-    aiColor4D (0.3f, 0.3f ,0.2f, 1.0f), //dxf color code 49
-    aiColor4D (1.0f, 1.0f ,0.0f, 1.0f), //dxf color code 50
-    aiColor4D (1.0f, 1.0f ,0.7f, 1.0f), //dxf color code 51
-    aiColor4D (0.7f, 0.7f ,0.0f, 1.0f), //dxf color code 52
-    aiColor4D (0.7f, 0.7f ,0.5f, 1.0f), //dxf color code 53
-    aiColor4D (0.5f, 0.5f ,0.0f, 1.0f), //dxf color code 54
-    aiColor4D (0.5f, 0.5f ,0.3f, 1.0f), //dxf color code 55
-    aiColor4D (0.4f, 0.4f ,0.0f, 1.0f), //dxf color code 56
-    aiColor4D (0.4f, 0.4f ,0.3f, 1.0f), //dxf color code 57
-    aiColor4D (0.3f, 0.3f ,0.0f, 1.0f), //dxf color code 58
-    aiColor4D (0.3f, 0.3f ,0.2f, 1.0f), //dxf color code 59
-    aiColor4D (0.7f, 1.0f ,0.0f, 1.0f), //dxf color code 60
-    aiColor4D (0.9f, 1.0f ,0.7f, 1.0f), //dxf color code 61
-    aiColor4D (0.6f, 0.7f ,0.0f, 1.0f), //dxf color code 62
-    aiColor4D (0.7f, 0.7f ,0.5f, 1.0f), //dxf color code 63
-    aiColor4D (0.4f, 0.5f ,0.0f, 1.0f), //dxf color code 64
-    aiColor4D (0.5f, 0.5f ,0.3f, 1.0f), //dxf color code 65
-    aiColor4D (0.3f, 0.4f ,0.0f, 1.0f), //dxf color code 66
-    aiColor4D (0.4f, 0.4f ,0.3f, 1.0f), //dxf color code 67
-    aiColor4D (0.2f, 0.3f ,0.0f, 1.0f), //dxf color code 68
-    aiColor4D (0.3f, 0.3f ,0.2f, 1.0f), //dxf color code 69
-    aiColor4D (0.5f, 1.0f ,0.0f, 1.0f), //dxf color code 70
-    aiColor4D (0.8f, 1.0f ,0.7f, 1.0f), //dxf color code 71
-    aiColor4D (0.4f, 0.7f ,0.0f, 1.0f), //dxf color code 72
-    aiColor4D (0.6f, 0.7f ,0.5f, 1.0f), //dxf color code 73
-    aiColor4D (0.3f, 0.5f ,0.0f, 1.0f), //dxf color code 74
-    aiColor4D (0.4f, 0.5f ,0.3f, 1.0f), //dxf color code 75
-    aiColor4D (0.2f, 0.4f ,0.0f, 1.0f), //dxf color code 76
-    aiColor4D (0.3f, 0.4f ,0.3f, 1.0f), //dxf color code 77
-    aiColor4D (0.2f, 0.3f ,0.0f, 1.0f), //dxf color code 78
-    aiColor4D (0.3f, 0.3f ,0.2f, 1.0f), //dxf color code 79
-    aiColor4D (0.2f, 1.0f ,0.0f, 1.0f), //dxf color code 80
-    aiColor4D (0.7f, 1.0f ,0.7f, 1.0f), //dxf color code 81
-    aiColor4D (0.2f, 0.7f ,0.0f, 1.0f), //dxf color code 82
-    aiColor4D (0.6f, 0.7f ,0.5f, 1.0f), //dxf color code 83
-    aiColor4D (0.1f, 0.5f ,0.0f, 1.0f), //dxf color code 84
-    aiColor4D (0.4f, 0.5f ,0.3f, 1.0f), //dxf color code 85
-    aiColor4D (0.1f, 0.4f ,0.0f, 1.0f), //dxf color code 86
-    aiColor4D (0.3f, 0.4f ,0.3f, 1.0f), //dxf color code 87
-    aiColor4D (0.1f, 0.3f ,0.0f, 1.0f), //dxf color code 88
-    aiColor4D (0.2f, 0.3f ,0.2f, 1.0f), //dxf color code 89
-    aiColor4D (0.0f, 1.0f ,0.0f, 1.0f), //dxf color code 90
-    aiColor4D (0.7f, 1.0f ,0.7f, 1.0f), //dxf color code 91
-    aiColor4D (0.0f, 0.7f ,0.0f, 1.0f), //dxf color code 92
-    aiColor4D (0.5f, 0.7f ,0.5f, 1.0f), //dxf color code 93
-    aiColor4D (0.0f, 0.5f ,0.0f, 1.0f), //dxf color code 94
-    aiColor4D (0.3f, 0.5f ,0.3f, 1.0f), //dxf color code 95
-    aiColor4D (0.0f, 0.4f ,0.0f, 1.0f), //dxf color code 96
-    aiColor4D (0.3f, 0.4f ,0.3f, 1.0f), //dxf color code 97
-    aiColor4D (0.0f, 0.3f ,0.0f, 1.0f), //dxf color code 98
-    aiColor4D (0.2f, 0.3f ,0.2f, 1.0f), //dxf color code 99
-    aiColor4D (0.0f, 1.0f ,0.2f, 1.0f), //dxf color code 100
-    aiColor4D (0.7f, 1.0f ,0.7f, 1.0f), //dxf color code 101
-    aiColor4D (0.0f, 0.7f ,0.2f, 1.0f), //dxf color code 102
-    aiColor4D (0.5f, 0.7f ,0.6f, 1.0f), //dxf color code 103
-    aiColor4D (0.0f, 0.5f ,0.1f, 1.0f), //dxf color code 104
-    aiColor4D (0.3f, 0.5f ,0.4f, 1.0f), //dxf color code 105
-    aiColor4D (0.0f, 0.4f ,0.1f, 1.0f), //dxf color code 106
-    aiColor4D (0.3f, 0.4f ,0.3f, 1.0f), //dxf color code 107
-    aiColor4D (0.0f, 0.3f ,0.1f, 1.0f), //dxf color code 108
-    aiColor4D (0.2f, 0.3f ,0.2f, 1.0f), //dxf color code 109
-    aiColor4D (0.0f, 1.0f ,0.5f, 1.0f), //dxf color code 110
-    aiColor4D (0.7f, 1.0f ,0.8f, 1.0f), //dxf color code 111
-    aiColor4D (0.0f, 0.7f ,0.4f, 1.0f), //dxf color code 112
-    aiColor4D (0.5f, 0.7f ,0.6f, 1.0f), //dxf color code 113
-    aiColor4D (0.0f, 0.5f ,0.3f, 1.0f), //dxf color code 114
-    aiColor4D (0.3f, 0.5f ,0.4f, 1.0f), //dxf color code 115
-    aiColor4D (0.0f, 0.4f ,0.2f, 1.0f), //dxf color code 116
-    aiColor4D (0.3f, 0.4f ,0.3f, 1.0f), //dxf color code 117
-    aiColor4D (0.0f, 0.3f ,0.2f, 1.0f), //dxf color code 118
-    aiColor4D (0.2f, 0.3f ,0.3f, 1.0f), //dxf color code 119
-    aiColor4D (0.0f, 1.0f ,0.7f, 1.0f), //dxf color code 120
-    aiColor4D (0.7f, 1.0f ,0.9f, 1.0f), //dxf color code 121
-    aiColor4D (0.0f, 0.7f ,0.6f, 1.0f), //dxf color code 122
-    aiColor4D (0.5f, 0.7f ,0.7f, 1.0f), //dxf color code 123
-    aiColor4D (0.0f, 0.5f ,0.4f, 1.0f), //dxf color code 124
-    aiColor4D (0.3f, 0.5f ,0.5f, 1.0f), //dxf color code 125
-    aiColor4D (0.0f, 0.4f ,0.3f, 1.0f), //dxf color code 126
-    aiColor4D (0.3f, 0.4f ,0.4f, 1.0f), //dxf color code 127
-    aiColor4D (0.0f, 0.3f ,0.2f, 1.0f), //dxf color code 128
-    aiColor4D (0.2f, 0.3f ,0.3f, 1.0f), //dxf color code 129
-    aiColor4D (0.0f, 1.0f ,1.0f, 1.0f), //dxf color code 130
-    aiColor4D (0.7f, 1.0f ,1.0f, 1.0f), //dxf color code 131
-    aiColor4D (0.0f, 0.7f ,0.7f, 1.0f), //dxf color code 132
-    aiColor4D (0.5f, 0.7f ,0.7f, 1.0f), //dxf color code 133
-    aiColor4D (0.0f, 0.5f ,0.5f, 1.0f), //dxf color code 134
-    aiColor4D (0.3f, 0.5f ,0.5f, 1.0f), //dxf color code 135
-    aiColor4D (0.0f, 0.4f ,0.4f, 1.0f), //dxf color code 136
-    aiColor4D (0.3f, 0.4f ,0.4f, 1.0f), //dxf color code 137
-    aiColor4D (0.0f, 0.3f ,0.3f, 1.0f), //dxf color code 138
-    aiColor4D (0.2f, 0.3f ,0.3f, 1.0f), //dxf color code 139
-    aiColor4D (0.0f, 0.7f ,1.0f, 1.0f), //dxf color code 140
-    aiColor4D (0.7f, 0.9f ,1.0f, 1.0f), //dxf color code 141
-    aiColor4D (0.0f, 0.6f ,0.7f, 1.0f), //dxf color code 142
-    aiColor4D (0.5f, 0.7f ,0.7f, 1.0f), //dxf color code 143
-    aiColor4D (0.0f, 0.4f ,0.5f, 1.0f), //dxf color code 144
-    aiColor4D (0.3f, 0.5f ,0.5f, 1.0f), //dxf color code 145
-    aiColor4D (0.0f, 0.3f ,0.4f, 1.0f), //dxf color code 146
-    aiColor4D (0.3f, 0.4f ,0.4f, 1.0f), //dxf color code 147
-    aiColor4D (0.0f, 0.2f ,0.3f, 1.0f), //dxf color code 148
-    aiColor4D (0.2f, 0.3f ,0.3f, 1.0f), //dxf color code 149
-    aiColor4D (0.0f, 0.5f ,1.0f, 1.0f), //dxf color code 150
-    aiColor4D (0.7f, 0.8f ,1.0f, 1.0f), //dxf color code 151
-    aiColor4D (0.0f, 0.4f ,0.7f, 1.0f), //dxf color code 152
-    aiColor4D (0.5f, 0.6f ,0.7f, 1.0f), //dxf color code 153
-    aiColor4D (0.0f, 0.3f ,0.5f, 1.0f), //dxf color code 154
-    aiColor4D (0.3f, 0.4f ,0.5f, 1.0f), //dxf color code 155
-    aiColor4D (0.0f, 0.2f ,0.4f, 1.0f), //dxf color code 156
-    aiColor4D (0.3f, 0.3f ,0.4f, 1.0f), //dxf color code 157
-    aiColor4D (0.0f, 0.2f ,0.3f, 1.0f), //dxf color code 158
-    aiColor4D (0.2f, 0.3f ,0.3f, 1.0f), //dxf color code 159
-    aiColor4D (0.0f, 0.2f ,1.0f, 1.0f), //dxf color code 160
-    aiColor4D (0.7f, 0.7f ,1.0f, 1.0f), //dxf color code 161
-    aiColor4D (0.0f, 0.2f ,0.7f, 1.0f), //dxf color code 162
-    aiColor4D (0.5f, 0.6f ,0.7f, 1.0f), //dxf color code 163
-    aiColor4D (0.0f, 0.1f ,0.5f, 1.0f), //dxf color code 164
-    aiColor4D (0.3f, 0.4f ,0.5f, 1.0f), //dxf color code 165
-    aiColor4D (0.0f, 0.1f ,0.4f, 1.0f), //dxf color code 166
-    aiColor4D (0.3f, 0.3f ,0.4f, 1.0f), //dxf color code 167
-    aiColor4D (0.0f, 0.1f ,0.3f, 1.0f), //dxf color code 168
-    aiColor4D (0.2f, 0.2f ,0.3f, 1.0f), //dxf color code 169
-    aiColor4D (0.0f, 0.0f ,1.0f, 1.0f), //dxf color code 170
-    aiColor4D (0.7f, 0.7f ,1.0f, 1.0f), //dxf color code 171
-    aiColor4D (0.0f, 0.0f ,0.7f, 1.0f), //dxf color code 172
-    aiColor4D (0.5f, 0.5f ,0.7f, 1.0f), //dxf color code 173
-    aiColor4D (0.0f, 0.0f ,0.5f, 1.0f), //dxf color code 174
-    aiColor4D (0.3f, 0.3f ,0.5f, 1.0f), //dxf color code 175
-    aiColor4D (0.0f, 0.0f ,0.4f, 1.0f), //dxf color code 176
-    aiColor4D (0.3f, 0.3f ,0.4f, 1.0f), //dxf color code 177
-    aiColor4D (0.0f, 0.0f ,0.3f, 1.0f), //dxf color code 178
-    aiColor4D (0.2f, 0.2f ,0.3f, 1.0f), //dxf color code 179
-    aiColor4D (0.2f, 0.0f ,1.0f, 1.0f), //dxf color code 180
-    aiColor4D (0.7f, 0.7f ,1.0f, 1.0f), //dxf color code 181
-    aiColor4D (0.2f, 0.0f ,0.7f, 1.0f), //dxf color code 182
-    aiColor4D (0.6f, 0.5f ,0.7f, 1.0f), //dxf color code 183
-    aiColor4D (0.1f, 0.0f ,0.5f, 1.0f), //dxf color code 184
-    aiColor4D (0.4f, 0.3f ,0.5f, 1.0f), //dxf color code 185
-    aiColor4D (0.1f, 0.0f ,0.4f, 1.0f), //dxf color code 186
-    aiColor4D (0.3f, 0.3f ,0.4f, 1.0f), //dxf color code 187
-    aiColor4D (0.1f, 0.0f ,0.3f, 1.0f), //dxf color code 188
-    aiColor4D (0.2f, 0.2f ,0.3f, 1.0f), //dxf color code 189
-    aiColor4D (0.5f, 0.0f ,1.0f, 1.0f), //dxf color code 190
-    aiColor4D (0.8f, 0.7f ,1.0f, 1.0f), //dxf color code 191
-    aiColor4D (0.4f, 0.0f ,0.7f, 1.0f), //dxf color code 192
-    aiColor4D (0.6f, 0.5f ,0.7f, 1.0f), //dxf color code 193
-    aiColor4D (0.3f, 0.0f ,0.5f, 1.0f), //dxf color code 194
-    aiColor4D (0.4f, 0.3f ,0.5f, 1.0f), //dxf color code 195
-    aiColor4D (0.2f, 0.0f ,0.4f, 1.0f), //dxf color code 196
-    aiColor4D (0.3f, 0.3f ,0.4f, 1.0f), //dxf color code 197
-    aiColor4D (0.2f, 0.0f ,0.3f, 1.0f), //dxf color code 198
-    aiColor4D (0.3f, 0.2f ,0.3f, 1.0f), //dxf color code 199
-    aiColor4D (0.7f, 0.0f ,1.0f, 1.0f), //dxf color code 200
-    aiColor4D (0.9f, 0.7f ,1.0f, 1.0f), //dxf color code 201
-    aiColor4D (0.6f, 0.0f ,0.7f, 1.0f), //dxf color code 202
-    aiColor4D (0.7f, 0.5f ,0.7f, 1.0f), //dxf color code 203
-    aiColor4D (0.4f, 0.0f ,0.5f, 1.0f), //dxf color code 204
-    aiColor4D (0.5f, 0.3f ,0.5f, 1.0f), //dxf color code 205
-    aiColor4D (0.3f, 0.0f ,0.4f, 1.0f), //dxf color code 206
-    aiColor4D (0.4f, 0.3f ,0.4f, 1.0f), //dxf color code 207
-    aiColor4D (0.2f, 0.0f ,0.3f, 1.0f), //dxf color code 208
-    aiColor4D (0.3f, 0.2f ,0.3f, 1.0f), //dxf color code 209
-    aiColor4D (1.0f, 0.0f ,1.0f, 1.0f), //dxf color code 210
-    aiColor4D (1.0f, 0.7f ,1.0f, 1.0f), //dxf color code 211
-    aiColor4D (0.7f, 0.0f ,0.7f, 1.0f), //dxf color code 212
-    aiColor4D (0.7f, 0.5f ,0.7f, 1.0f), //dxf color code 213
-    aiColor4D (0.5f, 0.0f ,0.5f, 1.0f), //dxf color code 214
-    aiColor4D (0.5f, 0.3f ,0.5f, 1.0f), //dxf color code 215
-    aiColor4D (0.4f, 0.0f ,0.4f, 1.0f), //dxf color code 216
-    aiColor4D (0.4f, 0.3f ,0.4f, 1.0f), //dxf color code 217
-    aiColor4D (0.3f, 0.0f ,0.3f, 1.0f), //dxf color code 218
-    aiColor4D (0.3f, 0.2f ,0.3f, 1.0f), //dxf color code 219
-    aiColor4D (1.0f, 0.0f ,0.7f, 1.0f), //dxf color code 220
-    aiColor4D (1.0f, 0.7f ,0.9f, 1.0f), //dxf color code 221
-    aiColor4D (0.7f, 0.0f ,0.6f, 1.0f), //dxf color code 222
-    aiColor4D (0.7f, 0.5f ,0.7f, 1.0f), //dxf color code 223
-    aiColor4D (0.5f, 0.0f ,0.4f, 1.0f), //dxf color code 224
-    aiColor4D (0.5f, 0.3f ,0.5f, 1.0f), //dxf color code 225
-    aiColor4D (0.4f, 0.0f ,0.3f, 1.0f), //dxf color code 226
-    aiColor4D (0.4f, 0.3f ,0.4f, 1.0f), //dxf color code 227
-    aiColor4D (0.3f, 0.0f ,0.2f, 1.0f), //dxf color code 228
-    aiColor4D (0.3f, 0.2f ,0.3f, 1.0f), //dxf color code 229
-    aiColor4D (1.0f, 0.0f ,0.5f, 1.0f), //dxf color code 230
-    aiColor4D (1.0f, 0.7f ,0.8f, 1.0f), //dxf color code 231
-    aiColor4D (0.7f, 0.0f ,0.4f, 1.0f), //dxf color code 232
-    aiColor4D (0.7f, 0.5f ,0.6f, 1.0f), //dxf color code 233
-    aiColor4D (0.5f, 0.0f ,0.3f, 1.0f), //dxf color code 234
-    aiColor4D (0.5f, 0.3f ,0.4f, 1.0f), //dxf color code 235
-    aiColor4D (0.4f, 0.0f ,0.2f, 1.0f), //dxf color code 236
-    aiColor4D (0.4f, 0.3f ,0.3f, 1.0f), //dxf color code 237
-    aiColor4D (0.3f, 0.0f ,0.2f, 1.0f), //dxf color code 238
-    aiColor4D (0.3f, 0.2f ,0.3f, 1.0f), //dxf color code 239
-    aiColor4D (1.0f, 0.0f ,0.2f, 1.0f), //dxf color code 240
-    aiColor4D (1.0f, 0.7f ,0.7f, 1.0f), //dxf color code 241
-    aiColor4D (0.7f, 0.0f ,0.2f, 1.0f), //dxf color code 242
-    aiColor4D (0.7f, 0.5f ,0.6f, 1.0f), //dxf color code 243
-    aiColor4D (0.5f, 0.0f ,0.1f, 1.0f), //dxf color code 244
-    aiColor4D (0.5f, 0.3f ,0.4f, 1.0f), //dxf color code 245
-    aiColor4D (0.4f, 0.0f ,0.1f, 1.0f), //dxf color code 246
-    aiColor4D (0.4f, 0.3f ,0.3f, 1.0f), //dxf color code 247
-    aiColor4D (0.3f, 0.0f ,0.1f, 1.0f), //dxf color code 248
-    aiColor4D (0.3f, 0.2f ,0.2f, 1.0f), //dxf color code 249
-    aiColor4D (0.2f, 0.2f ,0.2f, 1.0f), //dxf color code 250
-    aiColor4D (0.3f, 0.3f ,0.3f, 1.0f), //dxf color code 251
-    aiColor4D (0.4f, 0.4f ,0.4f, 1.0f), //dxf color code 252
-    aiColor4D (0.5f, 0.5f ,0.5f, 1.0f), //dxf color code 253
-    aiColor4D (0.7f, 0.7f ,0.7f, 1.0f), //dxf color code 254
-    aiColor4D (1.0f, 1.0f ,1.0f, 1.0f) //dxf color code 255
 };
 
 #define AI_DXF_NUM_INDEX_COLORS (sizeof(g_aclrDxfIndexColors)/sizeof(g_aclrDxfIndexColors[0]))
@@ -613,12 +372,8 @@ void DXFImporter::ExpandBlockReferences(DXF::Block& bl,const DXF::BlockMap& bloc
                 // XXX order
                 aiMatrix4x4 trafo, tmp;
                 aiMatrix4x4::Translation(-bl_src.base,trafo);
-                //Need to translate position before scaling the insert
-                //otherwise the position ends up being the position*scaling
-                //STH 2024.01.17
-                trafo *= aiMatrix4x4::Translation(insert.pos,tmp);
                 trafo *= aiMatrix4x4::Scaling(insert.scale,tmp);
-                //trafo *= aiMatrix4x4::Translation(insert.pos,tmp);
+                trafo *= aiMatrix4x4::Translation(insert.pos,tmp);
 
                 // XXX rotation currently ignored - I didn't find an appropriate sample model.
                 if (insert.angle != 0.f) {

code/AssetLib/DXF/DXFLoader.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 All rights reserved.
 

code/AssetLib/FBX/FBXAnimation.cpp

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 All rights reserved.
 

code/AssetLib/FBX/FBXBinaryTokenizer.cpp

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 
 All rights reserved.

code/AssetLib/FBX/FBXCommon.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 All rights reserved.
 

code/AssetLib/FBX/FBXCompileConfig.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 All rights reserved.
 

code/AssetLib/FBX/FBXConverter.cpp

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 All rights reserved.
 
@@ -55,7 +55,9 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 #include <assimp/MathFunctions.h>
 #include <assimp/StringComparison.h>
+
 #include <assimp/scene.h>
+
 #include <assimp/CreateAnimMesh.h>
 #include <assimp/StringUtils.h>
 #include <assimp/commonMetaData.h>
@@ -76,53 +78,6 @@ using namespace Util;
 
 #define CONVERT_FBX_TIME(time) static_cast<double>(time) / 46186158000LL
 
-static void correctRootTransform(const aiScene *scene) {
-    if (scene == nullptr) {
-        return;
-    }
-
-    if (scene->mMetaData == nullptr) {
-        return;
-    }
-
-    int32_t UpAxis = 1, UpAxisSign = 1, FrontAxis = 2, FrontAxisSign = 1, CoordAxis = 0, CoordAxisSign = 1;
-    double UnitScaleFactor = 1.0;
-    for (unsigned MetadataIndex = 0; MetadataIndex < scene->mMetaData->mNumProperties; ++MetadataIndex) {
-        if (strcmp(scene->mMetaData->mKeys[MetadataIndex].C_Str(), "UpAxis") == 0) {
-            scene->mMetaData->Get<int32_t>(MetadataIndex, UpAxis);
-        }
-        if (strcmp(scene->mMetaData->mKeys[MetadataIndex].C_Str(), "UpAxisSign") == 0) {
-            scene->mMetaData->Get<int32_t>(MetadataIndex, UpAxisSign);
-        }
-        if (strcmp(scene->mMetaData->mKeys[MetadataIndex].C_Str(), "FrontAxis") == 0) {
-            scene->mMetaData->Get<int32_t>(MetadataIndex, FrontAxis);
-        }
-        if (strcmp(scene->mMetaData->mKeys[MetadataIndex].C_Str(), "FrontAxisSign") == 0) {
-            scene->mMetaData->Get<int32_t>(MetadataIndex, FrontAxisSign);
-        }
-        if (strcmp(scene->mMetaData->mKeys[MetadataIndex].C_Str(), "CoordAxis") == 0) {
-            scene->mMetaData->Get<int32_t>(MetadataIndex, CoordAxis);
-        }
-        if (strcmp(scene->mMetaData->mKeys[MetadataIndex].C_Str(), "CoordAxisSign") == 0) {
-            scene->mMetaData->Get<int32_t>(MetadataIndex, CoordAxisSign);
-        }
-        if (strcmp(scene->mMetaData->mKeys[MetadataIndex].C_Str(), "UnitScaleFactor") == 0) {
-            scene->mMetaData->Get<double>(MetadataIndex, UnitScaleFactor);
-        }
-    }
-
-    aiVector3D upVec, forwardVec, rightVec;
-    upVec[UpAxis] = UpAxisSign * static_cast<float>(UnitScaleFactor);
-    forwardVec[FrontAxis] = FrontAxisSign * static_cast<float>(UnitScaleFactor);
-    rightVec[CoordAxis] = CoordAxisSign * (float)UnitScaleFactor;
-
-    aiMatrix4x4 mat(rightVec.x, rightVec.y, rightVec.z, 0.0f,
-                    upVec.x, upVec.y, upVec.z, 0.0f,
-                    forwardVec.x, forwardVec.y, forwardVec.z, 0.0f,
-                    0.0f, 0.0f, 0.0f, 1.0f);
-    scene->mRootNode->mTransformation *= mat;
-}
-
 FBXConverter::FBXConverter(aiScene *out, const Document &doc, bool removeEmptyBones) :
         defaultMaterialIndex(),
         mMeshes(),
@@ -180,10 +135,6 @@ FBXConverter::FBXConverter(aiScene *out, const Document &doc, bool removeEmptyBo
     // need not contain geometry (i.e. camera animations, raw armatures).
     if (out->mNumMeshes == 0) {
         out->mFlags |= AI_SCENE_FLAGS_INCOMPLETE;
-    } else {
-        // Apply the FBX axis metadata unless requested not to
-        if (!doc.Settings().ignoreUpDirection)
-            correctRootTransform(mSceneOut);
     }
 }
 
@@ -312,8 +263,6 @@ void FBXConverter::ConvertNodes(uint64_t id, aiNode *parent, aiNode *root_node)
 
                 child->mParent = last_parent;
                 last_parent = child.mNode;
-
-                new_abs_transform *= child->mTransformation;
             }
 
             // attach geometry
@@ -336,8 +285,6 @@ void FBXConverter::ConvertNodes(uint64_t id, aiNode *parent, aiNode *root_node)
 
                     postnode->mParent = last_parent;
                     last_parent = postnode.mNode;
-
-                    new_abs_transform *= postnode->mTransformation;
                 }
             } else {
                 // free the nodes we allocated as we don't need them
@@ -363,12 +310,12 @@ void FBXConverter::ConvertNodes(uint64_t id, aiNode *parent, aiNode *root_node)
     if (nodes.empty()) {
         parent->mNumChildren = 0;
         parent->mChildren = nullptr;
-    } else {
+    }
-        parent->mChildren = new aiNode *[nodes.size()]();
+
-        parent->mNumChildren = static_cast<unsigned int>(nodes.size());
+    parent->mChildren = new aiNode *[nodes.size()]();
-        for (unsigned int i = 0; i < nodes.size(); ++i) {
+    parent->mNumChildren = static_cast<unsigned int>(nodes.size());
-            parent->mChildren[i] = nodes[i].mOwnership.release();
+    for (unsigned int i = 0; i < nodes.size(); ++i) {
-        }
+        parent->mChildren[i] = nodes[i].mOwnership.release();
     }
 }
 
@@ -1259,7 +1206,7 @@ unsigned int FBXConverter::ConvertMeshSingleMaterial(const MeshGeometry &mesh, c
                 const auto &curNormals = shapeGeometry->GetNormals();
                 const auto &curIndices = shapeGeometry->GetIndices();
                 //losing channel name if using shapeGeometry->Name()
-                // if blendShapeChannel Name is empty or doesn't have a ".", add geoMetryName;
+                // if blendShapeChannel Name is empty or don't have a ".", add geoMetryName;
                 auto aniName = FixAnimMeshName(blendShapeChannel->Name());
                 auto geoMetryName = FixAnimMeshName(shapeGeometry->Name());
                 if (aniName.empty()) {
@@ -1657,7 +1604,7 @@ void FBXConverter::ConvertWeights(aiMesh *out, const MeshGeometry &geo, const ai
 
 void FBXConverter::ConvertCluster(std::vector<aiBone*> &local_mesh_bones, const Cluster *cluster,
         std::vector<size_t> &out_indices, std::vector<size_t> &index_out_indices,
-        std::vector<size_t> &count_out_indices, const aiMatrix4x4 &absolute_transform,
+        std::vector<size_t> &count_out_indices, const aiMatrix4x4 & /* absolute_transform*/,
         aiNode *) {
     ai_assert(cluster != nullptr); // make sure cluster valid
 
@@ -1674,16 +1621,16 @@ void FBXConverter::ConvertCluster(std::vector<aiBone*> &local_mesh_bones, const
         bone = new aiBone();
         bone->mName = bone_name;
 
-        //bone->mOffsetMatrix = cluster->Transform();
+        bone->mOffsetMatrix = cluster->Transform();
         // store local transform link for post processing
-        
+        /*
         bone->mOffsetMatrix = cluster->TransformLink();
         bone->mOffsetMatrix.Inverse();
 
-        const aiMatrix4x4 matrix = (aiMatrix4x4)absolute_transform;
+        aiMatrix4x4 matrix = (aiMatrix4x4)absolute_transform;
 
         bone->mOffsetMatrix = bone->mOffsetMatrix * matrix; // * mesh_offset
-        
+        */
         //
         // Now calculate the aiVertexWeights
         //
@@ -1866,7 +1813,7 @@ aiString FBXConverter::GetTexturePath(const Texture *tex) {
                 // We need to load all textures before referencing them, as FBX file format order may reference a texture before loading it
                 // This may occur on this case too, it has to be studied
                 path.data[0] = '*';
-                path.length = 1 + ASSIMP_itoa10(path.data + 1, AI_MAXLEN - 1, index);
+                path.length = 1 + ASSIMP_itoa10(path.data + 1, MAXLEN - 1, index);
             }
         }
     }
@@ -2134,10 +2081,6 @@ void FBXConverter::SetTextureProperties(aiMaterial *out_mat, const TextureMap &_
     TrySetTextureProperties(out_mat, _textures, "Maya|emissionColor", aiTextureType_EMISSION_COLOR, mesh);
     TrySetTextureProperties(out_mat, _textures, "Maya|metalness", aiTextureType_METALNESS, mesh);
     TrySetTextureProperties(out_mat, _textures, "Maya|diffuseRoughness", aiTextureType_DIFFUSE_ROUGHNESS, mesh);
-    TrySetTextureProperties(out_mat, _textures, "Maya|base", aiTextureType_MAYA_BASE, mesh);
-    TrySetTextureProperties(out_mat, _textures, "Maya|specular", aiTextureType_MAYA_SPECULAR, mesh);
-    TrySetTextureProperties(out_mat, _textures, "Maya|specularColor", aiTextureType_MAYA_SPECULAR_COLOR, mesh);
-    TrySetTextureProperties(out_mat, _textures, "Maya|specularRoughness", aiTextureType_MAYA_SPECULAR_ROUGHNESS, mesh);
 
     // Maya stingray
     TrySetTextureProperties(out_mat, _textures, "Maya|TEX_color_map", aiTextureType_BASE_COLOR, mesh);
@@ -2450,7 +2393,7 @@ void FBXConverter::SetShadingPropertiesRaw(aiMaterial *out_mat, const PropertyTa
 
                 // setup texture reference string (copied from ColladaLoader::FindFilenameForEffectTexture)
                 path.data[0] = '*';
-                path.length = 1 + ASSIMP_itoa10(path.data + 1, AI_MAXLEN - 1, index);
+                path.length = 1 + ASSIMP_itoa10(path.data + 1, MAXLEN - 1, index);
             }
 
             out_mat->AddProperty(&path, (name + "|file").c_str(), aiTextureType_UNKNOWN, 0);
@@ -2816,7 +2759,7 @@ void FBXConverter::ProcessMorphAnimDatas(std::map<std::string, morphAnimData *>
                                 auto geoIt = std::find(model->GetGeometry().begin(), model->GetGeometry().end(), geo);
                                 auto geoIndex = static_cast<unsigned int>(std::distance(model->GetGeometry().begin(), geoIt));
                                 auto name = aiString(FixNodeName(model->Name() + "*"));
-                                name.length = 1 + ASSIMP_itoa10(name.data + name.length, AI_MAXLEN - 1, geoIndex);
+                                name.length = 1 + ASSIMP_itoa10(name.data + name.length, MAXLEN - 1, geoIndex);
                                 morphAnimData *animData;
                                 auto animIt = morphAnimDatas->find(name.C_Str());
                                 if (animIt == morphAnimDatas->end()) {
@@ -3298,9 +3241,9 @@ aiNodeAnim* FBXConverter::GenerateSimpleNodeAnim(const std::string& name,
     }
 
     if (keyframeLists[TransformationComp_Rotation].size() > 0) {
-        InterpolateKeys(outRotations, keytimes, keyframeLists[TransformationComp_Rotation], defRotation, maxTime, minTime, rotOrder);
+        InterpolateKeys(outRotations, keytimes, keyframeLists[TransformationComp_Rotation], AI_DEG_TO_RAD(defRotation), maxTime, minTime, rotOrder);
     } else {
-        aiQuaternion defQuat = EulerToQuaternion(defRotation, rotOrder);
+        aiQuaternion defQuat = EulerToQuaternion(AI_DEG_TO_RAD(defRotation), rotOrder);
         for (size_t i = 0; i < keyCount; ++i) {
             outRotations[i].mTime = CONVERT_FBX_TIME(keytimes[i]) * anim_fps;
             outRotations[i].mValue = defQuat;
@@ -3322,7 +3265,7 @@ aiNodeAnim* FBXConverter::GenerateSimpleNodeAnim(const std::string& name,
 
     const aiVector3D& preRotation = PropertyGet<aiVector3D>(props, "PreRotation", ok);
     if (ok && preRotation.SquareLength() > zero_epsilon) {
-        const aiQuaternion preQuat = EulerToQuaternion(preRotation, Model::RotOrder_EulerXYZ);
+        const aiQuaternion preQuat = EulerToQuaternion(AI_DEG_TO_RAD(preRotation), Model::RotOrder_EulerXYZ);
         for (size_t i = 0; i < keyCount; ++i) {
             outRotations[i].mValue = preQuat * outRotations[i].mValue;
         }
@@ -3330,7 +3273,7 @@ aiNodeAnim* FBXConverter::GenerateSimpleNodeAnim(const std::string& name,
 
     const aiVector3D& postRotation = PropertyGet<aiVector3D>(props, "PostRotation", ok);
     if (ok && postRotation.SquareLength() > zero_epsilon) {
-        const aiQuaternion postQuat = EulerToQuaternion(postRotation, Model::RotOrder_EulerXYZ);
+        const aiQuaternion postQuat = EulerToQuaternion(AI_DEG_TO_RAD(postRotation), Model::RotOrder_EulerXYZ);
         for (size_t i = 0; i < keyCount; ++i) {
             outRotations[i].mValue = outRotations[i].mValue * postQuat;
         }

code/AssetLib/FBX/FBXConverter.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 
 All rights reserved.

code/AssetLib/FBX/FBXDeformer.cpp

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 All rights reserved.
 
@@ -84,7 +84,7 @@ Cluster::Cluster(uint64_t id, const Element& element, const Document& doc, const
     transform = ReadMatrix(Transform);
     transformLink = ReadMatrix(TransformLink);
 
-    // it is actually possible that there are Deformer's with no weights
+    // it is actually possible that there be Deformer's with no weights
     if (!!Indexes != !!Weights) {
         DOMError("either Indexes or Weights are missing from Cluster",&element);
     }

code/AssetLib/FBX/FBXDocument.cpp

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 All rights reserved.
 
@@ -390,7 +390,7 @@ void Document::ReadObjects() {
         const auto foundObject = objects.find(id);
         if(foundObject != objects.end()) {
             DOMWarning("encountered duplicate object id, ignoring first occurrence",el.second);
-            delete_LazyObject(foundObject->second);
+            delete foundObject->second;
         }
 
         objects[id] = new_LazyObject(id, *el.second, *this);

code/AssetLib/FBX/FBXDocument.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 All rights reserved.
 

code/AssetLib/FBX/FBXDocumentUtil.cpp

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 
 All rights reserved.

code/AssetLib/FBX/FBXExportNode.cpp

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 All rights reserved.
 

code/AssetLib/FBX/FBXExportNode.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 All rights reserved.
 

code/AssetLib/FBX/FBXExportProperty.cpp

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 All rights reserved.
 

code/AssetLib/FBX/FBXExportProperty.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 All rights reserved.
 

code/AssetLib/FBX/FBXExporter.cpp

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 All rights reserved.
 
@@ -69,7 +69,6 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include <unordered_set>
 #include <utility>
 #include <vector>
-#include <cmath>
 
 // RESOURCES:
 // https://code.blender.org/2013/08/fbx-binary-file-format-specification/
@@ -1051,7 +1050,7 @@ aiNode* get_node_for_mesh(unsigned int meshIndex, aiNode* node)
 aiMatrix4x4 get_world_transform(const aiNode* node, const aiScene* scene)
 {
     std::vector<const aiNode*> node_chain;
-    while (node != scene->mRootNode && node != nullptr) {
+    while (node != scene->mRootNode) {
         node_chain.push_back(node);
         node = node->mParent;
     }
@@ -1062,14 +1061,14 @@ aiMatrix4x4 get_world_transform(const aiNode* node, const aiScene* scene)
     return transform;
 }
 
-inline int64_t to_ktime(double ticks, const aiAnimation* anim) {
+int64_t to_ktime(double ticks, const aiAnimation* anim) {
-    if (FP_ZERO == std::fpclassify(anim->mTicksPerSecond)) {    
+    if (anim->mTicksPerSecond <= 0) {
         return static_cast<int64_t>(ticks) * FBX::SECOND;
     }
-    return (static_cast<int64_t>(ticks / anim->mTicksPerSecond)) * FBX::SECOND;
+    return (static_cast<int64_t>(ticks) / static_cast<int64_t>(anim->mTicksPerSecond)) * FBX::SECOND;
 }
 
-inline int64_t to_ktime(double time) {
+int64_t to_ktime(double time) {
     return (static_cast<int64_t>(time * FBX::SECOND));
 }
 
@@ -1089,8 +1088,6 @@ void FBXExporter::WriteObjects ()
     bool bJoinIdenticalVertices = mProperties->GetPropertyBool("bJoinIdenticalVertices", true);
     std::vector<std::vector<int32_t>> vVertexIndice;//save vertex_indices as it is needed later
 
-    const auto bTransparencyFactorReferencedToOpacity = mProperties->GetPropertyBool(AI_CONFIG_EXPORT_FBX_TRANSPARENCY_FACTOR_REFER_TO_OPACITY, false);
-
     // geometry (aiMesh)
     mesh_uids.clear();
     indent = 1;
@@ -1217,8 +1214,10 @@ void FBXExporter::WriteObjects ()
         }
 
         // colors, if any
-        for (size_t ci = 0; ci < m->GetNumColorChannels(); ++ci) {
+        // TODO only one color channel currently
-            FBX::Node vertexcolors("LayerElementColor", int32_t(ci));
+        const int32_t colorChannelIndex = 0;
+        if (m->HasVertexColors(colorChannelIndex)) {
+            FBX::Node vertexcolors("LayerElementColor", int32_t(colorChannelIndex));
             vertexcolors.Begin(outstream, binary, indent);
             vertexcolors.DumpProperties(outstream, binary, indent);
             vertexcolors.EndProperties(outstream, binary, indent);
@@ -1228,7 +1227,7 @@ void FBXExporter::WriteObjects ()
                 "Version", int32_t(101), outstream, binary, indent
             );
             char layerName[8];
-            snprintf(layerName, sizeof(layerName), "COLOR_%d", int32_t(ci));
+            snprintf(layerName, sizeof(layerName), "COLOR_%d", colorChannelIndex);
             FBX::Node::WritePropertyNode(
                 "Name", (const char*)layerName, outstream, binary, indent
             );
@@ -1245,7 +1244,7 @@ void FBXExporter::WriteObjects ()
             for (size_t fi = 0; fi < m->mNumFaces; ++fi) {
                 const aiFace &f = m->mFaces[fi];
                 for (size_t pvi = 0; pvi < f.mNumIndices; ++pvi) {
-                    const aiColor4D &c = m->mColors[ci][f.mIndices[pvi]];
+                    const aiColor4D &c = m->mColors[colorChannelIndex][f.mIndices[pvi]];
                     color_data.push_back(c.r);
                     color_data.push_back(c.g);
                     color_data.push_back(c.b);
@@ -1352,14 +1351,11 @@ void FBXExporter::WriteObjects ()
         le.AddChild("Type", "LayerElementNormal");
         le.AddChild("TypedIndex", int32_t(0));
         layer.AddChild(le);
-
+        // TODO only 1 color channel currently
-        for (size_t ci = 0; ci < m->GetNumColorChannels(); ++ci) {
+        le = FBX::Node("LayerElement");
-            le = FBX::Node("LayerElement");
+        le.AddChild("Type", "LayerElementColor");
-            le.AddChild("Type", "LayerElementColor");
+        le.AddChild("TypedIndex", int32_t(0));
-            le.AddChild("TypedIndex", int32_t(ci));
+        layer.AddChild(le);
-            layer.AddChild(le);
-        }
-
         le = FBX::Node("LayerElement");
         le.AddChild("Type", "LayerElementMaterial");
         le.AddChild("TypedIndex", int32_t(0));
@@ -1448,21 +1444,13 @@ void FBXExporter::WriteObjects ()
             // "TransparentColor" / "TransparencyFactor"...
             // thanks FBX, for your insightful interpretation of consistency
             p.AddP70colorA("TransparentColor", c.r, c.g, c.b);
-
+            // TransparencyFactor defaults to 0.0, so set it to 1.0.
-            if (!bTransparencyFactorReferencedToOpacity) {
+            // note: Maya always sets this to 1.0,
-                // TransparencyFactor defaults to 0.0, so set it to 1.0.
+            // so we can't use it sensibly as "Opacity".
-                // note: Maya always sets this to 1.0,
+            // In stead we rely on the legacy "Opacity" value, below.
-                // so we can't use it sensibly as "Opacity".
+            // Blender also relies on "Opacity" not "TransparencyFactor",
-                // In stead we rely on the legacy "Opacity" value, below.
+            // probably for a similar reason.
-                // Blender also relies on "Opacity" not "TransparencyFactor",
+            p.AddP70numberA("TransparencyFactor", 1.0);
-                // probably for a similar reason.
-                p.AddP70numberA("TransparencyFactor", 1.0);
-            }
-        }
-        if (bTransparencyFactorReferencedToOpacity) {
-            if (m->Get(AI_MATKEY_OPACITY, f) == aiReturn_SUCCESS) {
-                p.AddP70numberA("TransparencyFactor", 1.0 - f);
-            }
         }
         if (m->Get(AI_MATKEY_COLOR_REFLECTIVE, c) == aiReturn_SUCCESS) {
             p.AddP70colorA("ReflectionColor", c.r, c.g, c.b);
@@ -1760,7 +1748,7 @@ void FBXExporter::WriteObjects ()
         int64_t blendshape_uid = generate_uid();
         mesh_uids.push_back(blendshape_uid);
         bsnode.AddProperty(blendshape_uid);
-        bsnode.AddProperty(blendshape_name + FBX::SEPARATOR + "Geometry");
+        bsnode.AddProperty(blendshape_name + FBX::SEPARATOR + "Blendshape");
         bsnode.AddProperty("Shape");
         bsnode.AddChild("Version", int32_t(100));
         bsnode.Begin(outstream, binary, indent);
@@ -1819,7 +1807,7 @@ void FBXExporter::WriteObjects ()
         p.AddP70numberA("DeformPercent", 0.0);
         sdnode.AddChild(p);
         // TODO: Normally just one weight per channel, adding stub for later development
-        std::vector<double>fFullWeights;
+        std::vector<float>fFullWeights;
         fFullWeights.push_back(100.);
         sdnode.AddChild("FullWeights", fFullWeights);
         sdnode.Dump(outstream, binary, indent);
@@ -1869,26 +1857,33 @@ void FBXExporter::WriteObjects ()
     // one sticky point is that the number of vertices may not match,
     // because assimp splits vertices by normal, uv, etc.
 
+    // functor for aiNode sorting
+    struct SortNodeByName
+    {
+        bool operator()(const aiNode *lhs, const aiNode *rhs) const
+        {
+            return strcmp(lhs->mName.C_Str(), rhs->mName.C_Str()) < 0;
+        }
+    };
 
     // first we should mark the skeleton for each mesh.
     // the skeleton must include not only the aiBones,
     // but also all their parent nodes.
     // anything that affects the position of any bone node must be included.
-
+    // Use SorNodeByName to make sure the exported result will be the same across all systems
-    // note that we want to preserve input order as much as possible here.
+    // Otherwise the aiNodes of the skeleton would be sorted based on the pointer address, which isn't consistent
-    // previously, sorting by name lead to consistent output across systems, but was not
+    std::vector<std::set<const aiNode*, SortNodeByName>> skeleton_by_mesh(mScene->mNumMeshes);
-    // suitable for downstream consumption by some applications.
-    std::vector<std::vector<const aiNode*>> skeleton_by_mesh(mScene->mNumMeshes);
     // at the same time we can build a list of all the skeleton nodes,
     // which will be used later to mark them as type "limbNode".
     std::unordered_set<const aiNode*> limbnodes;
 
     //actual bone nodes in fbx, without parenting-up
-    std::vector<std::string> allBoneNames;
+    std::unordered_set<std::string> setAllBoneNamesInScene;
-    for(unsigned int m = 0; m < mScene->mNumMeshes; ++ m) {
+    for(unsigned int m = 0; m < mScene->mNumMeshes; ++ m)
+    {
         aiMesh* pMesh = mScene->mMeshes[m];
         for(unsigned int b = 0; b < pMesh->mNumBones; ++ b)
-            allBoneNames.push_back(pMesh->mBones[b]->mName.data);
+            setAllBoneNamesInScene.insert(pMesh->mBones[b]->mName.data);
     }
     aiMatrix4x4 mxTransIdentity;
 
@@ -1896,7 +1891,7 @@ void FBXExporter::WriteObjects ()
     std::map<std::string,aiNode*> node_by_bone;
     for (size_t mi = 0; mi < mScene->mNumMeshes; ++mi) {
         const aiMesh* m = mScene->mMeshes[mi];
-        std::vector<const aiNode*> skeleton;
+        std::set<const aiNode*, SortNodeByName> skeleton;
         for (size_t bi =0; bi < m->mNumBones; ++bi) {
             const aiBone* b = m->mBones[bi];
             const std::string name(b->mName.C_Str());
@@ -1915,7 +1910,7 @@ void FBXExporter::WriteObjects ()
                 node_by_bone[name] = n;
                 limbnodes.insert(n);
             }
-            skeleton.push_back(n);
+            skeleton.insert(n);
             // mark all parent nodes as skeleton as well,
             // up until we find the root node,
             // or else the node containing the mesh,
@@ -1926,7 +1921,7 @@ void FBXExporter::WriteObjects ()
                 parent = parent->mParent
             ) {
                 // if we've already done this node we can skip it all
-                if (std::find(skeleton.begin(), skeleton.end(), parent) != skeleton.end()) {
+                if (skeleton.count(parent)) {
                     break;
                 }
                 // ignore fbx transform nodes as these will be collapsed later
@@ -1936,7 +1931,7 @@ void FBXExporter::WriteObjects ()
                     continue;
                 }
                 //not a bone in scene && no effect in transform
-                if (std::find(allBoneNames.begin(), allBoneNames.end(), node_name) == allBoneNames.end()
+                if(setAllBoneNamesInScene.find(node_name)==setAllBoneNamesInScene.end()
                    && parent->mTransformation == mxTransIdentity) {
                         continue;
                 }
@@ -2021,7 +2016,7 @@ void FBXExporter::WriteObjects ()
         aiMatrix4x4 mesh_xform = get_world_transform(mesh_node, mScene);
 
         // now make a subdeformer for each bone in the skeleton
-        const auto & skeleton= skeleton_by_mesh[mi];
+        const std::set<const aiNode*, SortNodeByName> skeleton= skeleton_by_mesh[mi];
         for (const aiNode* bone_node : skeleton) {
             // if there's a bone for this node, find it
             const aiBone* b = nullptr;
@@ -2418,7 +2413,7 @@ void FBXExporter::WriteObjects ()
             // position/translation
             for (size_t ki = 0; ki < na->mNumPositionKeys; ++ki) {
                 const aiVectorKey& k = na->mPositionKeys[ki];
-                times.push_back(to_ktime(k.mTime, anim));
+                times.push_back(to_ktime(k.mTime));
                 xval.push_back(k.mValue.x);
                 yval.push_back(k.mValue.y);
                 zval.push_back(k.mValue.z);
@@ -2432,7 +2427,7 @@ void FBXExporter::WriteObjects ()
             times.clear(); xval.clear(); yval.clear(); zval.clear();
             for (size_t ki = 0; ki < na->mNumRotationKeys; ++ki) {
                 const aiQuatKey& k = na->mRotationKeys[ki];
-                times.push_back(to_ktime(k.mTime, anim));
+                times.push_back(to_ktime(k.mTime));
                 // TODO: aiQuaternion method to convert to Euler...
                 aiMatrix4x4 m(k.mValue.GetMatrix());
                 aiVector3D qs, qr, qt;
@@ -2450,7 +2445,7 @@ void FBXExporter::WriteObjects ()
             times.clear(); xval.clear(); yval.clear(); zval.clear();
             for (size_t ki = 0; ki < na->mNumScalingKeys; ++ki) {
                 const aiVectorKey& k = na->mScalingKeys[ki];
-                times.push_back(to_ktime(k.mTime, anim));
+                times.push_back(to_ktime(k.mTime));
                 xval.push_back(k.mValue.x);
                 yval.push_back(k.mValue.y);
                 zval.push_back(k.mValue.z);
@@ -2487,57 +2482,6 @@ const std::map<std::string,std::pair<std::string,char>> transform_types = {
     {"GeometricScalingInverse", {"GeometricScalingInverse", 'i'}}
 };
 
-//add metadata to fbx property
-void add_meta(FBX::Node& fbx_node, const aiNode* node){
-    if(node->mMetaData == nullptr) return;
-    aiMetadata* meta = node->mMetaData;
-    for (unsigned int i = 0; i < meta->mNumProperties; ++i) {
-        aiString key = meta->mKeys[i];
-        aiMetadataEntry* entry = &meta->mValues[i];
-        switch (entry->mType) {
-        case AI_BOOL:{
-            bool val = *static_cast<bool *>(entry->mData);
-            fbx_node.AddP70bool(key.C_Str(), val);
-            break;
-        }
-        case AI_INT32:{
-            int32_t val = *static_cast<int32_t *>(entry->mData);
-            fbx_node.AddP70int(key.C_Str(), val);
-            break;
-        }
-        case AI_UINT64:{
-            //use string to add uint64
-            uint64_t val = *static_cast<uint64_t *>(entry->mData);
-            fbx_node.AddP70string(key.C_Str(), std::to_string(val).c_str());
-            break;
-        }
-        case AI_FLOAT:{
-            float val = *static_cast<float *>(entry->mData);
-            fbx_node.AddP70double(key.C_Str(), val);
-            break;
-        }
-        case AI_DOUBLE:{
-            double val = *static_cast<double *>(entry->mData);
-            fbx_node.AddP70double(key.C_Str(), val);
-            break;
-        }
-        case AI_AISTRING:{
-            aiString val = *static_cast<aiString *>(entry->mData);
-            fbx_node.AddP70string(key.C_Str(), val.C_Str());
-            break;
-        }
-        case AI_AIMETADATA: {
-            //ignore
-            break;
-        }
-        default:
-            break;
-        }
-        
-    }
-    
-}
-
 // write a single model node to the stream
 void FBXExporter::WriteModelNode(
     StreamWriterLE& outstream,
@@ -2605,7 +2549,6 @@ void FBXExporter::WriteModelNode(
             }
         }
     }
-    add_meta(p, node);
     m.AddChild(p);
 
     // not sure what these are for,

code/AssetLib/FBX/FBXExporter.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 All rights reserved.
 

code/AssetLib/FBX/FBXImportSettings.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2024, assimp team
+Copyright (c) 2006-2022, assimp team
 
 All rights reserved.
 
@@ -156,9 +156,6 @@ struct ImportSettings {
     /** Set to true to perform a conversion from cm to meter after the import
     */
     bool convertToMeters;
-
-    // Set to true to ignore the axis configuration in the file
-    bool ignoreUpDirection = false;
 };
 
 } // namespace FBX