Merge branch 'master' into UnitTestBlenderSubdivision

.github/workflows/ccpp.yml

@@ -54,7 +54,7 @@ jobs:
     - name: Cache DX SDK
       id: dxcache
       if: contains(matrix.name, 'windows')
-      uses: actions/cache@v3
+      uses: actions/cache@v4
       with:
         path: '${{ github.workspace }}/DX_SDK'
         key: ${{ runner.os }}-DX_SDK
@@ -98,7 +98,7 @@ jobs:
       run: cd build/bin && ./unit ${{ steps.hunter_extra_test_args.outputs.args }}
       shell: bash
 
-    - uses: actions/upload-artifact@v3
+    - uses: actions/upload-artifact@v4
       if: matrix.name == 'windows-msvc'
       with:
         name: 'assimp-bins-${{ matrix.name }}-${{ github.sha }}'

.github/workflows/cifuzz.yml

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

CMakeLists.txt

@@ -1,6 +1,6 @@
 # Open Asset Import Library (assimp)
 # ----------------------------------------------------------------------
-# Copyright (c) 2006-2023, assimp team
+# Copyright (c) 2006-2024, assimp team
 #
 # All rights reserved.
 #
@@ -38,9 +38,9 @@ SET(CMAKE_POLICY_DEFAULT_CMP0012 NEW)
 SET(CMAKE_POLICY_DEFAULT_CMP0074 NEW)
 SET(CMAKE_POLICY_DEFAULT_CMP0092 NEW)
 
-CMAKE_MINIMUM_REQUIRED( VERSION 3.10 )
+CMAKE_MINIMUM_REQUIRED( VERSION 3.22 )
 
-# Disabled importers: m3d for 5.1
+# 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
@@ -49,13 +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/v0.24.18.tar.gz"
+    URL "https://github.com/cpp-pm/hunter/archive/v0.25.5.tar.gz"
-    SHA1 "1292e4d661e1770d6d6ca08c12c07cf34a0bf718"
+    SHA1 "a20151e4c0740ee7d0f9994476856d813cdead29"
   )
   add_definitions(-DASSIMP_USE_HUNTER)
 ENDIF()
 
-PROJECT(Assimp VERSION 5.3.0)
+PROJECT(Assimp VERSION 5.4.0)
 
 # All supported options ###############################################
 
@@ -131,18 +131,18 @@ OPTION ( ASSIMP_IGNORE_GIT_HASH
 
 IF (WIN32)
   OPTION( ASSIMP_BUILD_ZLIB
-    "Build your own zlib"
+    "Build your zlib"
     ON
   )
 ELSE()
   OPTION( ASSIMP_BUILD_ZLIB
-    "Build your own zlib"
+    "Build your zlib"
-    ON
+    OFF
   )
 ENDIF()
 
 IF (WIN32)
-  # Use subset of Windows.h
+  # Use a subset of Windows.h
   ADD_DEFINITIONS( -DWIN32_LEAN_AND_MEAN )
 
   IF(MSVC)
@@ -150,16 +150,16 @@ IF (WIN32)
       "Install MSVC debug files."
       ON )
     IF(NOT (MSVC_VERSION LESS 1900))
-      # Multibyte character set is deprecated since at least MSVC2015 (possibly earlier)
+      # Multibyte character set has been deprecated since at least MSVC2015 (possibly earlier)
       ADD_DEFINITIONS( -DUNICODE -D_UNICODE )
     ENDIF()
 
-    # Link statically against c/c++ lib to avoid missing redistriburable such as
+    # Link statically against c/c++ lib to avoid missing redistributable such as
     # "VCRUNTIME140.dll not found. Try reinstalling the app.", but give users
     # a choice to opt for the shared runtime if they want.
     option(USE_STATIC_CRT "Link against the static runtime libraries." OFF)
 
-    # The CMAKE_CXX_FLAGS vars can be overriden by some Visual Studio generators, so we use an alternative
+    # The CMAKE_CXX_FLAGS vars can be overridden by some Visual Studio generators, so we use an alternative
     # global method here:
     if (${USE_STATIC_CRT})
       add_compile_options(
@@ -249,9 +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 ${OPERATING_SYSTEM} MATCHES "Android")
-    IF ( CMAKE_SIZEOF_VOID_P EQUAL 4) # only necessary for 32-bit linux
+    IF ( CMAKE_SIZEOF_VOID_P EQUAL 4) # only necessary for 32-bit Linux
       ADD_DEFINITIONS(-D_FILE_OFFSET_BITS=64 )
     ENDIF()
   ENDIF()
@@ -289,7 +289,7 @@ ELSEIF(MSVC)
   IF(MSVC12)
     ADD_COMPILE_OPTIONS(/wd4351)	
   ENDIF()
-  # supress warning for double to float conversion if Double precission is activated
+  # supress warning for double to float conversion if Double precision is activated
   ADD_COMPILE_OPTIONS(/wd4244) 
   SET(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} /D_DEBUG /Zi /Od")
   SET(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE}")
@@ -311,9 +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 -Wall -Wno-long-long -Wa,-mbig-obj -g ${CMAKE_CXX_FLAGS}")
+      SET(CMAKE_CXX_FLAGS "-fvisibility=hidden -fno-strict-aliasing -Wno-dangling-reference -Wall -Wno-long-long -Wa,-mbig-obj -g ${CMAKE_CXX_FLAGS}")
     ELSE()
-      SET(CMAKE_CXX_FLAGS "-fvisibility=hidden -fno-strict-aliasing -Wall -Wno-long-long -Wa,-mbig-obj -O3 ${CMAKE_CXX_FLAGS}")
+      SET(CMAKE_CXX_FLAGS "-fvisibility=hidden -fno-strict-aliasing -Wno-dangling-reference -Wall -Wno-long-long -Wa,-mbig-obj -O3 ${CMAKE_CXX_FLAGS}")
     ENDIF()
     SET(CMAKE_C_FLAGS "-fno-strict-aliasing ${CMAKE_C_FLAGS}")
 ENDIF()
@@ -452,18 +452,20 @@ configure_package_config_file(
     INSTALL_DESTINATION "${CONFIG_INSTALL_DIR}"
 )
 
-install(
+if(ASSIMP_INSTALL)
+  install(
       FILES "${PROJECT_CONFIG}" "${VERSION_CONFIG}"
       DESTINATION "${CONFIG_INSTALL_DIR}"
       COMPONENT ${LIBASSIMP-DEV_COMPONENT}
-)
+  )
 
-install(
+  install(
       EXPORT "${TARGETS_EXPORT_NAME}"
       NAMESPACE "${NAMESPACE}"
       DESTINATION "${CONFIG_INSTALL_DIR}"
       COMPONENT ${LIBASSIMP-DEV_COMPONENT}
-)
+  )
+endif()
 
 IF( ASSIMP_BUILD_DOCS )
   ADD_SUBDIRECTORY(doc)
@@ -481,7 +483,7 @@ 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 )
+  IF( ZLIB_FOUND AND ASSIMP_INSTALL)
     INSTALL( TARGETS zlib zlibstatic
         EXPORT "${TARGETS_EXPORT_NAME}")
   ENDIF()
@@ -563,9 +565,9 @@ SET ( ASSIMP_BUILD_NONFREE_C4D_IMPORTER OFF CACHE BOOL
 )
 
 IF (ASSIMP_BUILD_NONFREE_C4D_IMPORTER)
-  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")
@@ -583,7 +585,7 @@ IF (ASSIMP_BUILD_NONFREE_C4D_IMPORTER)
       SET(C4D_LIB_POSTFIX "_2010")
     ELSE()
       MESSAGE( FATAL_ERROR
-        "C4D is currently only supported with MSVC 10, 11, 12, 14, 14.2, 14.3"
+        "C4D for Windows is currently only supported with MSVC 10, 11, 12, 14, 14.2, 14.3"
       )
     ENDIF()
 
@@ -601,15 +603,30 @@ 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 with Cineware SDK installed in contrib/Cineware"
+      "C4D is currently only available on Windows and macOS with Cineware SDK installed in contrib/Cineware"
     )
   ENDIF ()
 ELSE ()
   ADD_DEFINITIONS( -DASSIMP_BUILD_NO_C4D_IMPORTER )
 ENDIF ()
 
+if(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")
@@ -645,22 +662,29 @@ ELSE()
           "-Wno-sign-compare"
           "-Wno-unused-local-typedefs"
         )
+
+        if(NOT ASSIMP_BUILD_DRACO_STATIC)
           # Draco 1.4.1 does not explicitly export any symbols under GCC/clang
           list(APPEND DRACO_CXX_FLAGS
             "-fvisibility=default"
           )
+        endif()
       ENDIF()
 
       # Don't build or install all of Draco by default
       ADD_SUBDIRECTORY( "contrib/draco" EXCLUDE_FROM_ALL )
 
+      if(ASSIMP_BUILD_DRACO_STATIC)
+        set_property(DIRECTORY "contrib/draco" PROPERTY BUILD_SHARED_LIBS OFF)
+      endif()
+
       if(MSVC OR WIN32)
         set(draco_LIBRARIES "draco")
       else()
-        if(BUILD_SHARED_LIBS)
+        if(ASSIMP_BUILD_DRACO_STATIC)
-          set(draco_LIBRARIES "draco_shared")
-        else()
           set(draco_LIBRARIES "draco_static")
+        else()
+          set(draco_LIBRARIES "draco_shared")
         endif()
       endif()
 
@@ -683,6 +707,7 @@ ELSE()
       set(draco_INCLUDE_DIRS "${CMAKE_CURRENT_SOURCE_DIR}/contrib/draco/src")
 
       # This is probably wrong
+      if (ASSIMP_INSTALL)
         INSTALL( TARGETS ${draco_LIBRARIES}
           EXPORT "${TARGETS_EXPORT_NAME}"
           LIBRARY DESTINATION ${ASSIMP_LIB_INSTALL_DIR}
@@ -692,6 +717,7 @@ ELSE()
           COMPONENT ${LIBASSIMP_COMPONENT}
           INCLUDES DESTINATION include
         )
+      endif()
     ENDIF()
   ENDIF()
 ENDIF()

Dockerfile

@@ -6,6 +6,7 @@ RUN apt-get update && apt-get install -y ninja-build \
 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

@@ -16,26 +16,27 @@ APIs are provided for C and C++. There are various bindings to other languages (
 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 ###
-Please check the latest documents at [Asset-Importer-Lib-Doc](https://assimp-docs.readthedocs.io/en/latest/). 
+Read [our latest documentation](https://assimp-docs.readthedocs.io/en/latest/).
 
 ### Pre-built binaries ###
-Please check our [Itchi Projectspace](https://kimkulling.itch.io/the-asset-importer-lib)
+Download binaries from [our Itchi Projectspace](https://kimkulling.itch.io/the-asset-importer-lib).
 
-If you want to check our Model-Database, use the following repo: https://github.com/assimp/assimp-mdb
+### Test data ###
+Clone [our model database](https://github.com/assimp/assimp-mdb).
 
 ### Communities ###
-- Ask a question at [The Assimp-Discussion Board](https://github.com/assimp/assimp/discussions)
+- Ask questions at [the Assimp Discussion Board](https://github.com/assimp/assimp/discussions).
-- 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 ####
-You can find the complete list of supported file-formats [here](https://github.com/assimp/assimp/blob/master/doc/Fileformats.md)
+See [the complete list of supported formats](https://github.com/assimp/assimp/blob/master/doc/Fileformats.md).
 
 ### Building ###
-Take a look [here](https://github.com/assimp/assimp/blob/master/Build.md) to get started. We are available in vcpkg, and our build system is CMake; if you used CMake before there is a good chance you know what to do.
+Start by reading [our build instructions](https://github.com/assimp/assimp/blob/master/Build.md). We are available in vcpkg, and our build system is CMake; if you used CMake before there is a good chance you know what to do.
 
 ### Ports ###
 * [Android](port/AndroidJNI/README.md)

code/AssetLib/3DS/3DSConverter.cpp

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

code/AssetLib/3DS/3DSExporter.cpp

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

code/AssetLib/3DS/3DSExporter.h

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

code/AssetLib/3DS/3DSHelper.h

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

code/AssetLib/3DS/3DSLoader.cpp

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

code/AssetLib/3DS/3DSLoader.h

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

code/AssetLib/3MF/3MFTypes.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2024, assimp team
 
 All rights reserved.
 
@@ -57,6 +57,7 @@ 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...)
 
@@ -117,6 +118,21 @@ 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) 2006-2022, assimp team
+Copyright (c) 2006-2024, assimp team
 
 All rights reserved.
 
@@ -98,6 +98,11 @@ 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) 2006-2022, assimp team
+Copyright (c) 2006-2024, assimp team
 
 All rights reserved.
 

code/AssetLib/3MF/D3MFExporter.h

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

code/AssetLib/3MF/D3MFImporter.cpp

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

code/AssetLib/3MF/D3MFOpcPackage.cpp

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2024, 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") {
+    if (extension == "jpg" || extension == "png" || extension == "jpeg") {
         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) 2006-2022, assimp team
+Copyright (c) 2006-2024, assimp team
 
 All rights reserved.
 

code/AssetLib/3MF/XmlSerializer.cpp

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2024, assimp team
 
 All rights reserved.
 
@@ -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 = -1;
+    texId0 = texId1 = texId2 = IdNotSet;
     XmlParser::getIntAttribute(node, XmlTag::p1, texId0);
     XmlParser::getIntAttribute(node, XmlTag::p2, texId1);
     XmlParser::getIntAttribute(node, XmlTag::p3, texId2);
@@ -236,6 +236,8 @@ void XmlSerializer::ImportXml(aiScene *scene) {
             ReadBaseMaterials(currentNode);
         } else if (currentNodeName == XmlTag::meta) {
             ReadMetadata(currentNode);
+        } else if (currentNodeName == XmlTag::colorgroup) {
+            ReadColorGroup(currentNode);
         }
     }
     StoreMaterialsInScene(scene);
@@ -331,9 +333,49 @@ void XmlSerializer::ReadObject(XmlNode &node) {
 
             if (hasPid) {
                 auto it = mResourcesDictionnary.find(pid);
-                if (hasPindex && it != mResourcesDictionnary.end() && it->second->getType() == ResourceType::RT_BaseMaterials) {
+                if (hasPindex && it != mResourcesDictionnary.end()) {
+                    if (it->second->getType() == ResourceType::RT_BaseMaterials) {
                         BaseMaterials *materials = static_cast<BaseMaterials *>(it->second);
                         mesh->mMaterialIndex = materials->mMaterialIndex[pindex];
+                    } else if (it->second->getType() == ResourceType::RT_Texture2DGroup) {
+                        Texture2DGroup *group = static_cast<Texture2DGroup *>(it->second);
+                        if (mesh->mTextureCoords[0] == nullptr) {
+                            mesh->mNumUVComponents[0] = 2;
+                            for (unsigned int i = 1; i < AI_MAX_NUMBER_OF_TEXTURECOORDS; ++i) {
+                                mesh->mNumUVComponents[i] = 0;
+                            }
+
+                            const std::string name = ai_to_string(group->mTexId);
+                            for (size_t i = 0; i < mMaterials.size(); ++i) {
+                                if (name == mMaterials[i]->GetName().C_Str()) {
+                                    mesh->mMaterialIndex = static_cast<unsigned int>(i);
+                                }
+                            }
+
+                            mesh->mTextureCoords[0] = new aiVector3D[mesh->mNumVertices];
+                            for (unsigned int vertex_idx = 0; vertex_idx < mesh->mNumVertices; vertex_idx++) {
+                                mesh->mTextureCoords[0][vertex_idx] =
+                                        aiVector3D(group->mTex2dCoords[pindex].x, group->mTex2dCoords[pindex].y, 0.0f);
+                            }
+                        } else {
+                            for (unsigned int vertex_idx = 0; vertex_idx < mesh->mNumVertices; vertex_idx++) {
+                                if (mesh->mTextureCoords[0][vertex_idx].z < 0) {
+                                    // use default
+                                    mesh->mTextureCoords[0][vertex_idx] =
+                                            aiVector3D(group->mTex2dCoords[pindex].x, group->mTex2dCoords[pindex].y, 0.0f);
+                                }
+                            }
+                        }
+                    }else if (it->second->getType() == ResourceType::RT_ColorGroup) {
+                        if (mesh->mColors[0] == nullptr) {
+                            mesh->mColors[0] = new aiColor4D[mesh->mNumVertices];
+
+                            ColorGroup *group = static_cast<ColorGroup *>(it->second);
+                            for (unsigned int vertex_idx = 0; vertex_idx < mesh->mNumVertices; vertex_idx++) {
+                                mesh->mColors[0][vertex_idx] = group->mColors[pindex];
+                            }
+                        }
+                    }
                 }
             }
 
@@ -415,27 +457,36 @@ 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, p1 = IdNotSet;
+            int pid = IdNotSet;
             bool hasPid = getNodeAttribute(currentNode, D3MF::XmlTag::pid, pid);
-            bool hasP1 = getNodeAttribute(currentNode, D3MF::XmlTag::p1, p1);
 
-            int texId[3];
+            int pindex[3];
-            Texture2DGroup *group = nullptr;
+            aiFace face = ReadTriangle(currentNode, pindex[0], pindex[1], pindex[2]);
-            aiFace face = ReadTriangle(currentNode, texId[0], texId[1], texId[2]);
+            if (hasPid && (pindex[0] != IdNotSet || pindex[1] != IdNotSet || pindex[2] != IdNotSet)) {
-            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()) {
@@ -443,19 +494,42 @@ 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
                             }
                         }
 
-            // Load texture coordinates into mesh, when any
+                        auto update_texture = [&](int idx) {
-            if (group != nullptr) {
+                            if (pindex[idx] != IdNotSet) {
-                size_t i0 = face.mIndices[0];
+                                size_t vertex_index = face.mIndices[idx];
-                size_t i1 = face.mIndices[1];
+                                mesh->mTextureCoords[0][vertex_index] =
-                size_t i2 = face.mIndices[2];
+                                        aiVector3D(group->mTex2dCoords[pindex[idx]].x, group->mTex2dCoords[pindex[idx]].y, 0.0f);
-                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);
+
+                        update_texture(0);
+                        update_texture(1);
+                        update_texture(2);
+
+                    } else if (it->second->getType() == ResourceType::RT_ColorGroup) {
+                        // Load vertex color into mesh, when any
+                        ColorGroup *group = static_cast<ColorGroup *>(it->second);
+                        if (mesh->mColors[0] == nullptr) {
+                            mesh->mColors[0] = new aiColor4D[mesh->mNumVertices];
+                        }
+
+                        auto update_color = [&](int idx) {
+                            if (pindex[idx] != IdNotSet) {
+                                size_t vertex_index = face.mIndices[idx];
+                                mesh->mColors[0][vertex_index] = group->mColors[pindex[idx]];
+                            }
+                        };
+
+                        update_color(0);
+                        update_color(1);
+                        update_color(2);
+                    }
+                }
             }
 
             faces.push_back(face);
@@ -598,6 +672,38 @@ 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) 2006-2022, assimp team
+Copyright (c) 2006-2024, assimp team
 
 All rights reserved.
 
@@ -57,6 +57,7 @@ class D3MFOpcPackage;
 class Object;
 class Texture2DGroup;
 class EmbeddedTexture;
+class ColorGroup;
 
 class XmlSerializer {
 public:
@@ -78,6 +79,8 @@ 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) 2006-2022, assimp team
+Copyright (c) 2006-2024, 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) {
+inline const char *AcSkipToNextToken(const char *buffer, const char *end) {
-    if (!SkipSpaces(&buffer)) {
+    if (!SkipSpaces(&buffer, end)) {
         ASSIMP_LOG_ERROR("AC3D: Unexpected EOF/EOL");
     }
     return buffer;
@@ -86,13 +86,13 @@ inline const char *AcSkipToNextToken(const char *buffer) {
 
 // ------------------------------------------------------------------------------------------------
 // read a string (may be enclosed in double quotation marks). buffer must point to "
-inline const char *AcGetString(const char *buffer, std::string &out) {
+inline const char *AcGetString(const char *buffer, const char *end, std::string &out) {
     if (*buffer == '\0') {
         throw DeadlyImportError("AC3D: Unexpected EOF in string");
     }
     ++buffer;
     const char *sz = buffer;
-    while ('\"' != *buffer) {
+    while ('\"' != *buffer && buffer != end) {
         if (IsLineEnd(*buffer)) {
             ASSIMP_LOG_ERROR("AC3D: Unexpected EOF/EOL in string");
             out = "ERROR";
@@ -112,8 +112,8 @@ inline const char *AcGetString(const char *buffer, std::string &out) {
 // ------------------------------------------------------------------------------------------------
 // read 1 to n floats prefixed with an optional predefined identifier
 template <class T>
-inline const char *TAcCheckedLoadFloatArray(const char *buffer, const char *name, size_t name_length, size_t num, T *out) {
+inline const char *TAcCheckedLoadFloatArray(const char *buffer, const char *end, const char *name, size_t name_length, size_t num, T *out) {
-    buffer = AcSkipToNextToken(buffer);
+    buffer = AcSkipToNextToken(buffer, end);
     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 *name
         buffer += name_length + 1;
     }
     for (unsigned int _i = 0; _i < num; ++_i) {
-        buffer = AcSkipToNextToken(buffer);
+        buffer = AcSkipToNextToken(buffer, end);
         buffer = fast_atoreal_move<float>(buffer, ((float *)out)[_i]);
     }
 
@@ -132,7 +132,7 @@ inline const char *TAcCheckedLoadFloatArray(const char *buffer, const char *name
 // ------------------------------------------------------------------------------------------------
 // Constructor to be privately used by Importer
 AC3DImporter::AC3DImporter() :
-        buffer(),
+        mBuffer(),
         configSplitBFCull(),
         configEvalSubdivision(),
         mNumMeshes(),
@@ -164,17 +164,17 @@ const aiImporterDesc *AC3DImporter::GetInfo() const {
 // ------------------------------------------------------------------------------------------------
 // Get a pointer to the next line from the file
 bool AC3DImporter::GetNextLine() {
-    SkipLine(&buffer);
+    SkipLine(&mBuffer.data, mBuffer.end);
-    return SkipSpaces(&buffer);
+    return SkipSpaces(&mBuffer.data, mBuffer.end);
 }
 
 // ------------------------------------------------------------------------------------------------
 // Parse an object section in an AC file
-void AC3DImporter::LoadObjectSection(std::vector<Object> &objects) {
+bool AC3DImporter::LoadObjectSection(std::vector<Object> &objects) {
-    if (!TokenMatch(buffer, "OBJECT", 6))
+    if (!TokenMatch(mBuffer.data, "OBJECT", 6))
-        return;
+        return false;
 
-    SkipSpaces(&buffer);
+    SkipSpaces(&mBuffer.data, mBuffer.end);
 
     ++mNumMeshes;
 
@@ -182,7 +182,7 @@ void AC3DImporter::LoadObjectSection(std::vector<Object> &objects) {
     Object &obj = objects.back();
 
     aiLight *light = nullptr;
-    if (!ASSIMP_strincmp(buffer, "light", 5)) {
+    if (!ASSIMP_strincmp(mBuffer.data, "light", 5)) {
         // This is a light source. Add it to the list
         mLights->push_back(light = new aiLight());
 
@@ -198,62 +198,66 @@ void AC3DImporter::LoadObjectSection(std::vector<Object> &objects) {
 
         ASSIMP_LOG_VERBOSE_DEBUG("AC3D: Light source encountered");
         obj.type = Object::Light;
-    } else if (!ASSIMP_strincmp(buffer, "group", 5)) {
+    } else if (!ASSIMP_strincmp(mBuffer.data, "group", 5)) {
         obj.type = Object::Group;
-    } else if (!ASSIMP_strincmp(buffer, "world", 5)) {
+    } else if (!ASSIMP_strincmp(mBuffer.data, "world", 5)) {
         obj.type = Object::World;
     } else
         obj.type = Object::Poly;
     while (GetNextLine()) {
-        if (TokenMatch(buffer, "kids", 4)) {
+        if (TokenMatch(mBuffer.data, "kids", 4)) {
-            SkipSpaces(&buffer);
+            SkipSpaces(&mBuffer.data, mBuffer.end);
-            unsigned int num = strtoul10(buffer, &buffer);
+            unsigned int num = strtoul10(mBuffer.data, &mBuffer.data);
             GetNextLine();
             if (num) {
                 // load the children of this object recursively
                 obj.children.reserve(num);
-                for (unsigned int i = 0; i < num; ++i)
+                for (unsigned int i = 0; i < num; ++i) {
-                    LoadObjectSection(obj.children);
+                    if (!LoadObjectSection(obj.children)) {
+                        ASSIMP_LOG_WARN("AC3D: wrong number of kids");
+                        break;
                     }
-            return;
+                }
-        } else if (TokenMatch(buffer, "name", 4)) {
+            }
-            SkipSpaces(&buffer);
+            return true;
-            buffer = AcGetString(buffer, obj.name);
+        } else if (TokenMatch(mBuffer.data, "name", 4)) {
+            SkipSpaces(&mBuffer.data, mBuffer.data);
+            mBuffer.data = AcGetString(mBuffer.data, mBuffer.end, obj.name);
 
             // If this is a light source, we'll also need to store
             // the name of the node in it.
             if (light) {
                 light->mName.Set(obj.name);
             }
-        } else if (TokenMatch(buffer, "texture", 7)) {
+        } else if (TokenMatch(mBuffer.data, "texture", 7)) {
-            SkipSpaces(&buffer);
+            SkipSpaces(&mBuffer.data, mBuffer.end);
             std::string texture;
-            buffer = AcGetString(buffer, texture);
+            mBuffer.data = AcGetString(mBuffer.data, mBuffer.end, texture);
             obj.textures.push_back(texture);
-        } else if (TokenMatch(buffer, "texrep", 6)) {
+        } else if (TokenMatch(mBuffer.data, "texrep", 6)) {
-            SkipSpaces(&buffer);
+            SkipSpaces(&mBuffer.data, mBuffer.end);
-            buffer = TAcCheckedLoadFloatArray(buffer, "", 0, 2, &obj.texRepeat);
+            mBuffer.data = TAcCheckedLoadFloatArray(mBuffer.data, mBuffer.end, "", 0, 2, &obj.texRepeat);
             if (!obj.texRepeat.x || !obj.texRepeat.y)
                 obj.texRepeat = aiVector2D(1.f, 1.f);
-        } else if (TokenMatch(buffer, "texoff", 6)) {
+        } else if (TokenMatch(mBuffer.data, "texoff", 6)) {
-            SkipSpaces(&buffer);
+            SkipSpaces(&mBuffer.data, mBuffer.end);
-            buffer = TAcCheckedLoadFloatArray(buffer, "", 0, 2, &obj.texOffset);
+            mBuffer.data = TAcCheckedLoadFloatArray(mBuffer.data, mBuffer.end, "", 0, 2, &obj.texOffset);
-        } else if (TokenMatch(buffer, "rot", 3)) {
+        } else if (TokenMatch(mBuffer.data, "rot", 3)) {
-            SkipSpaces(&buffer);
+            SkipSpaces(&mBuffer.data, mBuffer.end);
-            buffer = TAcCheckedLoadFloatArray(buffer, "", 0, 9, &obj.rotation);
+            mBuffer.data = TAcCheckedLoadFloatArray(mBuffer.data, mBuffer.end, "", 0, 9, &obj.rotation);
-        } else if (TokenMatch(buffer, "loc", 3)) {
+        } else if (TokenMatch(mBuffer.data, "loc", 3)) {
-            SkipSpaces(&buffer);
+            SkipSpaces(&mBuffer.data, mBuffer.end);
-            buffer = TAcCheckedLoadFloatArray(buffer, "", 0, 3, &obj.translation);
+            mBuffer.data = TAcCheckedLoadFloatArray(mBuffer.data, mBuffer.end, "", 0, 3, &obj.translation);
-        } else if (TokenMatch(buffer, "subdiv", 6)) {
+        } else if (TokenMatch(mBuffer.data, "subdiv", 6)) {
-            SkipSpaces(&buffer);
+            SkipSpaces(&mBuffer.data, mBuffer.end);
-            obj.subDiv = strtoul10(buffer, &buffer);
+            obj.subDiv = strtoul10(mBuffer.data, &mBuffer.data);
-        } else if (TokenMatch(buffer, "crease", 6)) {
+        } else if (TokenMatch(mBuffer.data, "crease", 6)) {
-            SkipSpaces(&buffer);
+            SkipSpaces(&mBuffer.data, mBuffer.end);
-            obj.crease = fast_atof(buffer);
+            obj.crease = fast_atof(mBuffer.data);
-        } else if (TokenMatch(buffer, "numvert", 7)) {
+        } else if (TokenMatch(mBuffer.data, "numvert", 7)) {
-            SkipSpaces(&buffer);
+            SkipSpaces(&mBuffer.data, mBuffer.end);
 
-            unsigned int t = strtoul10(buffer, &buffer);
+            unsigned int t = strtoul10(mBuffer.data, &mBuffer.data);
             if (t >= AI_MAX_ALLOC(aiVector3D)) {
                 throw DeadlyImportError("AC3D: Too many vertices, would run out of memory");
             }
@@ -262,59 +266,59 @@ void AC3DImporter::LoadObjectSection(std::vector<Object> &objects) {
                 if (!GetNextLine()) {
                     ASSIMP_LOG_ERROR("AC3D: Unexpected EOF: not all vertices have been parsed yet");
                     break;
-                } else if (!IsNumeric(*buffer)) {
+                } else if (!IsNumeric(*mBuffer.data)) {
                     ASSIMP_LOG_ERROR("AC3D: Unexpected token: not all vertices have been parsed yet");
-                    --buffer; // make sure the line is processed a second time
+                    --mBuffer.data; // make sure the line is processed a second time
                     break;
                 }
                 obj.vertices.emplace_back();
                 aiVector3D &v = obj.vertices.back();
-                buffer = TAcCheckedLoadFloatArray(buffer, "", 0, 3, &v.x);
+                mBuffer.data = TAcCheckedLoadFloatArray(mBuffer.data, mBuffer.end, "", 0, 3, &v.x);
             }
-        } else if (TokenMatch(buffer, "numsurf", 7)) {
+        } else if (TokenMatch(mBuffer.data, "numsurf", 7)) {
-            SkipSpaces(&buffer);
+            SkipSpaces(&mBuffer.data, mBuffer.end);
 
             bool Q3DWorkAround = false;
 
-            const unsigned int t = strtoul10(buffer, &buffer);
+            const unsigned int t = strtoul10(mBuffer.data, &mBuffer.data);
             obj.surfaces.reserve(t);
             for (unsigned int i = 0; i < t; ++i) {
                 GetNextLine();
-                if (!TokenMatch(buffer, "SURF", 4)) {
+                if (!TokenMatch(mBuffer.data, "SURF", 4)) {
                     // FIX: this can occur for some files - Quick 3D for
                     // example writes no surf chunks
                     if (!Q3DWorkAround) {
                         ASSIMP_LOG_WARN("AC3D: SURF token was expected");
                         ASSIMP_LOG_VERBOSE_DEBUG("Continuing with Quick3D Workaround enabled");
                     }
-                    --buffer; // make sure the line is processed a second time
+                    --mBuffer.data; // make sure the line is processed a second time
                     // break; --- see fix notes above
 
                     Q3DWorkAround = true;
                 }
-                SkipSpaces(&buffer);
+                SkipSpaces(&mBuffer.data, mBuffer.end);
                 obj.surfaces.emplace_back();
                 Surface &surf = obj.surfaces.back();
-                surf.flags = strtoul_cppstyle(buffer);
+                surf.flags = strtoul_cppstyle(mBuffer.data);
 
                 while (true) {
                     if (!GetNextLine()) {
                         throw DeadlyImportError("AC3D: Unexpected EOF: surface is incomplete");
                     }
-                    if (TokenMatch(buffer, "mat", 3)) {
+                    if (TokenMatch(mBuffer.data, "mat", 3)) {
-                        SkipSpaces(&buffer);
+                        SkipSpaces(&mBuffer.data, mBuffer.end);
-                        surf.mat = strtoul10(buffer);
+                        surf.mat = strtoul10(mBuffer.data);
-                    } else if (TokenMatch(buffer, "refs", 4)) {
+                    } else if (TokenMatch(mBuffer.data, "refs", 4)) {
                         // --- see fix notes above
                         if (Q3DWorkAround) {
                             if (!surf.entries.empty()) {
-                                buffer -= 6;
+                                mBuffer.data -= 6;
                                 break;
                             }
                         }
 
-                        SkipSpaces(&buffer);
+                        SkipSpaces(&mBuffer.data, mBuffer.end);
-                        const unsigned int m = strtoul10(buffer);
+                        const unsigned int m = strtoul10(mBuffer.data);
                         surf.entries.reserve(m);
 
                         obj.numRefs += m;
@@ -327,12 +331,12 @@ void AC3DImporter::LoadObjectSection(std::vector<Object> &objects) {
                             surf.entries.emplace_back();
                             Surface::SurfaceEntry &entry = surf.entries.back();
 
-                            entry.first = strtoul10(buffer, &buffer);
+                            entry.first = strtoul10(mBuffer.data, &mBuffer.data);
-                            SkipSpaces(&buffer);
+                            SkipSpaces(&mBuffer.data, mBuffer.end);
-                            buffer = TAcCheckedLoadFloatArray(buffer, "", 0, 2, &entry.second);
+                            mBuffer.data = TAcCheckedLoadFloatArray(mBuffer.data, mBuffer.end, "", 0, 2, &entry.second);
                         }
                     } else {
-                        --buffer; // make sure the line is processed a second time
+                        --mBuffer.data; // make sure the line is processed a second time
                         break;
                     }
                 }
@@ -340,6 +344,7 @@ void AC3DImporter::LoadObjectSection(std::vector<Object> &objects) {
         }
     }
     ASSIMP_LOG_ERROR("AC3D: Unexpected EOF: \'kids\' line was expected");
+    return false;
 }
 
 // ------------------------------------------------------------------------------------------------
@@ -445,7 +450,7 @@ aiNode *AC3DImporter::ConvertObjectSection(Object &object,
                     idx = 0;
                 }
                 if ((*it).entries.empty()) {
-                    ASSIMP_LOG_WARN("AC3D: surface her zero vertex references");
+                    ASSIMP_LOG_WARN("AC3D: surface has zero vertex references");
                 }
 
                 // validate all vertex indices to make sure we won't crash here
@@ -463,16 +468,15 @@ aiNode *AC3DImporter::ConvertObjectSection(Object &object,
                 }
 
                 switch ((*it).GetType()) {
-                    // closed line
+                case Surface::ClosedLine: // closed line
-                case Surface::ClosedLine:
+                    needMat[idx].first += static_cast<unsigned int>((*it).entries.size());
-                    needMat[idx].first += (unsigned int)(*it).entries.size();
+                    needMat[idx].second += static_cast<unsigned int>((*it).entries.size() << 1u);
-                    needMat[idx].second += (unsigned int)(*it).entries.size() << 1u;
                     break;
 
                     // unclosed line
                 case Surface::OpenLine:
-                    needMat[idx].first += (unsigned int)(*it).entries.size() - 1;
+                    needMat[idx].first += static_cast<unsigned int>((*it).entries.size() - 1);
-                    needMat[idx].second += ((unsigned int)(*it).entries.size() - 1) << 1u;
+                    needMat[idx].second += static_cast<unsigned int>(((*it).entries.size() - 1) << 1u);
                     break;
 
                     // triangle strip
@@ -574,15 +578,6 @@ aiNode *AC3DImporter::ConvertObjectSection(Object &object,
                                 const Surface::SurfaceEntry &entry2 = src.entries[i + 1];
                                 const Surface::SurfaceEntry &entry3 = src.entries[i + 2];
 
-                                // skip degenerate triangles
-                                if (object.vertices[entry1.first] == object.vertices[entry2.first] ||
-                                        object.vertices[entry1.first] == object.vertices[entry3.first] ||
-                                        object.vertices[entry2.first] == object.vertices[entry3.first]) {
-                                    mesh->mNumFaces--;
-                                    mesh->mNumVertices -= 3;
-                                    continue;
-                                }
-
                                 aiFace &face = *faces++;
                                 face.mNumIndices = 3;
                                 face.mIndices = new unsigned int[face.mNumIndices];
@@ -760,17 +755,18 @@ void AC3DImporter::InternReadFile(const std::string &pFile,
     std::vector<char> mBuffer2;
     TextFileToBuffer(file.get(), mBuffer2);
 
-    buffer = &mBuffer2[0];
+    mBuffer.data = &mBuffer2[0];
+    mBuffer.end = &mBuffer2[0] + mBuffer2.size();
     mNumMeshes = 0;
 
     mLightsCounter = mPolysCounter = mWorldsCounter = mGroupsCounter = 0;
 
-    if (::strncmp(buffer, "AC3D", 4)) {
+    if (::strncmp(mBuffer.data, "AC3D", 4)) {
         throw DeadlyImportError("AC3D: No valid AC3D file, magic sequence not found");
     }
 
     // print the file format version to the console
-    unsigned int version = HexDigitToDecimal(buffer[4]);
+    unsigned int version = HexDigitToDecimal(mBuffer.data[4]);
     char msg[3];
     ASSIMP_itoa10(msg, 3, version);
     ASSIMP_LOG_INFO("AC3D file format version: ", msg);
@@ -785,30 +781,31 @@ void AC3DImporter::InternReadFile(const std::string &pFile,
     mLights = &lights;
 
     while (GetNextLine()) {
-        if (TokenMatch(buffer, "MATERIAL", 8)) {
+        if (TokenMatch(mBuffer.data, "MATERIAL", 8)) {
             materials.emplace_back();
             Material &mat = materials.back();
 
             // manually parse the material ... sscanf would use the buldin atof ...
             // Format: (name) rgb %f %f %f  amb %f %f %f  emis %f %f %f  spec %f %f %f  shi %d  trans %f
 
-            buffer = AcSkipToNextToken(buffer);
+            mBuffer.data = AcSkipToNextToken(mBuffer.data, mBuffer.end);
-            if ('\"' == *buffer) {
+            if ('\"' == *mBuffer.data) {
-                buffer = AcGetString(buffer, mat.name);
+                mBuffer.data = AcGetString(mBuffer.data, mBuffer.end, mat.name);
-                buffer = AcSkipToNextToken(buffer);
+                mBuffer.data = AcSkipToNextToken(mBuffer.data, mBuffer.end);
             }
 
-            buffer = TAcCheckedLoadFloatArray(buffer, "rgb", 3, 3, &mat.rgb);
+            mBuffer.data = TAcCheckedLoadFloatArray(mBuffer.data, mBuffer.end, "rgb", 3, 3, &mat.rgb);
-            buffer = TAcCheckedLoadFloatArray(buffer, "amb", 3, 3, &mat.amb);
+            mBuffer.data = TAcCheckedLoadFloatArray(mBuffer.data, mBuffer.end, "amb", 3, 3, &mat.amb);
-            buffer = TAcCheckedLoadFloatArray(buffer, "emis", 4, 3, &mat.emis);
+            mBuffer.data = TAcCheckedLoadFloatArray(mBuffer.data, mBuffer.end, "emis", 4, 3, &mat.emis);
-            buffer = TAcCheckedLoadFloatArray(buffer, "spec", 4, 3, &mat.spec);
+            mBuffer.data = TAcCheckedLoadFloatArray(mBuffer.data, mBuffer.end, "spec", 4, 3, &mat.spec);
-            buffer = TAcCheckedLoadFloatArray(buffer, "shi", 3, 1, &mat.shin);
+            mBuffer.data = TAcCheckedLoadFloatArray(mBuffer.data, mBuffer.end, "shi", 3, 1, &mat.shin);
-            buffer = TAcCheckedLoadFloatArray(buffer, "trans", 5, 1, &mat.trans);
+            mBuffer.data = TAcCheckedLoadFloatArray(mBuffer.data, mBuffer.end, "trans", 5, 1, &mat.trans);
-        }
+        } else {
             LoadObjectSection(rootObjects);
         }
+    }
 
-    if (rootObjects.empty() || !mNumMeshes) {
+    if (rootObjects.empty() || mNumMeshes == 0u) {
         throw DeadlyImportError("AC3D: No meshes have been loaded");
     }
     if (materials.empty()) {
@@ -824,7 +821,7 @@ void AC3DImporter::InternReadFile(const std::string &pFile,
     materials.reserve(mNumMeshes);
 
     // generate a dummy root if there are multiple objects on the top layer
-    Object *root;
+    Object *root = nullptr;
     if (1 == rootObjects.size())
         root = &rootObjects[0];
     else {
@@ -837,7 +834,7 @@ void AC3DImporter::InternReadFile(const std::string &pFile,
         delete root;
     }
 
-    if (!::strncmp(pScene->mRootNode->mName.data, "Node", 4)) {
+    if (::strncmp(pScene->mRootNode->mName.data, "Node", 4) == 0) {
         pScene->mRootNode->mName.Set("<AC3DWorld>");
     }
 
@@ -856,7 +853,7 @@ void AC3DImporter::InternReadFile(const std::string &pFile,
 
     // copy lights
     pScene->mNumLights = (unsigned int)lights.size();
-    if (lights.size()) {
+    if (!lights.empty()) {
         pScene->mLights = new aiLight *[lights.size()];
         ::memcpy(pScene->mLights, &lights[0], lights.size() * sizeof(void *));
     }

code/AssetLib/AC/ACLoader.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2024, 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*/
-    void LoadObjectSection(std::vector<Object> &objects);
+    bool LoadObjectSection(std::vector<Object> &objects);
 
     // -------------------------------------------------------------------
     /** Convert all objects into meshes and nodes.
@@ -242,7 +242,7 @@ private:
 
 private:
     // points to the next data line
-    const char *buffer;
+    aiBuffer mBuffer;
 
     // Configuration option: if enabled, up to two meshes
     // are generated per material: those faces who have

code/AssetLib/AMF/AMFImporter.cpp

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

code/AssetLib/AMF/AMFImporter.hpp

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

code/AssetLib/AMF/AMFImporter_Geometry.cpp

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

code/AssetLib/AMF/AMFImporter_Material.cpp

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

code/AssetLib/AMF/AMFImporter_Node.hpp

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

code/AssetLib/AMF/AMFImporter_Postprocess.cpp

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

code/AssetLib/ASE/ASELoader.cpp

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

code/AssetLib/ASE/ASELoader.h

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

code/AssetLib/ASE/ASEParser.cpp

@@ -3,7 +3,7 @@
 Open Asset Import Library (assimp)
 ---------------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2024, assimp team
 
 All rights reserved.
 
@@ -110,10 +110,12 @@ using namespace Assimp::ASE;
     ++filePtr;
 
 // ------------------------------------------------------------------------------------------------
-Parser::Parser(const char *szFile, unsigned int fileFormatDefault) {
+Parser::Parser(const char *szFile, unsigned int fileFormatDefault) :
+        filePtr(nullptr), mEnd (nullptr) {
     ai_assert(nullptr != szFile);
 
     filePtr = szFile;
+    mEnd = filePtr + std::strlen(filePtr);
     iFileFormat = fileFormatDefault;
 
     // make sure that the color values are invalid
@@ -179,14 +181,22 @@ bool Parser::SkipToNextToken() {
     while (true) {
         char me = *filePtr;
 
+        if (filePtr == mEnd) {
+            return false;
+        }
+
         // increase the line number counter if necessary
         if (IsLineEnd(me) && !bLastWasEndLine) {
             ++iLineNumber;
             bLastWasEndLine = true;
         } else
             bLastWasEndLine = false;
-        if ('*' == me || '}' == me || '{' == me) return true;
+        if ('*' == me || '}' == me || '{' == me) {
-        if ('\0' == me) return false;
+            return true;
+        }
+        if ('\0' == me) {
+            return false;
+        }
 
         ++filePtr;
     }
@@ -344,8 +354,9 @@ void Parser::ParseLV1SoftSkinBlock() {
             unsigned int numVerts = 0;
 
             const char *sz = filePtr;
-            while (!IsSpaceOrNewLine(*filePtr))
+            while (!IsSpaceOrNewLine(*filePtr)) {
                 ++filePtr;
+            }
 
             const unsigned int diff = (unsigned int)(filePtr - sz);
             if (diff) {
@@ -363,24 +374,24 @@ void Parser::ParseLV1SoftSkinBlock() {
                     // Skip the mesh data - until we find a new mesh
                     // or the end of the *MESH_SOFTSKINVERTS section
                     while (true) {
-                        SkipSpacesAndLineEnd(&filePtr);
+                        SkipSpacesAndLineEnd(&filePtr, mEnd);
                         if (*filePtr == '}') {
                             ++filePtr;
                             return;
                         } else if (!IsNumeric(*filePtr))
                             break;
 
-                        SkipLine(&filePtr);
+                        SkipLine(&filePtr, mEnd);
                     }
                 } else {
-                    SkipSpacesAndLineEnd(&filePtr);
+                    SkipSpacesAndLineEnd(&filePtr, mEnd);
                     ParseLV4MeshLong(numVerts);
 
                     // Reserve enough storage
                     curMesh->mBoneVertices.reserve(numVerts);
 
                     for (unsigned int i = 0; i < numVerts; ++i) {
-                        SkipSpacesAndLineEnd(&filePtr);
+                        SkipSpacesAndLineEnd(&filePtr, mEnd);
                         unsigned int numWeights;
                         ParseLV4MeshLong(numWeights);
 
@@ -422,7 +433,7 @@ void Parser::ParseLV1SoftSkinBlock() {
         if (*filePtr == '\0')
             return;
         ++filePtr;
-        SkipSpacesAndLineEnd(&filePtr);
+        SkipSpacesAndLineEnd(&filePtr, mEnd);
     }
 }
 
@@ -489,6 +500,13 @@ void Parser::ParseLV1MaterialListBlock() {
                 continue;
             }
             if (TokenMatch(filePtr, "MATERIAL", 8)) {
+                // ensure we have at least one material allocated
+                if (iMaterialCount == 0) {
+                    LogWarning("*MATERIAL_COUNT unspecified or 0");
+                    iMaterialCount = 1;
+                    m_vMaterials.resize(iOldMaterialCount + iMaterialCount, Material("INVALID"));
+                }
+
                 unsigned int iIndex = 0;
                 ParseLV4MeshLong(iIndex);
 
@@ -642,6 +660,12 @@ void Parser::ParseLV2MaterialBlock(ASE::Material &mat) {
             }
             // submaterial chunks
             if (TokenMatch(filePtr, "SUBMATERIAL", 11)) {
+                // ensure we have at least one material allocated
+                if (iNumSubMaterials == 0) {
+                    LogWarning("*NUMSUBMTLS unspecified or 0");
+                    iNumSubMaterials = 1;
+                    mat.avSubMaterials.resize(iNumSubMaterials, Material("INVALID SUBMATERIAL"));
+                }
 
                 unsigned int iIndex = 0;
                 ParseLV4MeshLong(iIndex);
@@ -743,7 +767,7 @@ void Parser::ParseLV3MapBlock(Texture &map) {
 // ------------------------------------------------------------------------------------------------
 bool Parser::ParseString(std::string &out, const char *szName) {
     char szBuffer[1024];
-    if (!SkipSpaces(&filePtr)) {
+    if (!SkipSpaces(&filePtr, mEnd)) {
 
         ai_snprintf(szBuffer, 1024, "Unable to parse %s block: Unexpected EOL", szName);
         LogWarning(szBuffer);
@@ -1355,7 +1379,7 @@ void Parser::ParseLV4MeshBones(unsigned int iNumBones, ASE::Mesh &mesh) {
             // Mesh bone with name ...
             if (TokenMatch(filePtr, "MESH_BONE_NAME", 14)) {
                 // parse an index ...
-                if (SkipSpaces(&filePtr)) {
+                if (SkipSpaces(&filePtr, mEnd)) {
                     unsigned int iIndex = strtoul10(filePtr, &filePtr);
                     if (iIndex >= iNumBones) {
                         LogWarning("Bone index is out of bounds");
@@ -1395,11 +1419,11 @@ void Parser::ParseLV4MeshBonesVertices(unsigned int iNumVertices, ASE::Mesh &mes
                 std::pair<int, float> pairOut;
                 while (true) {
                     // first parse the bone index ...
-                    if (!SkipSpaces(&filePtr)) break;
+                    if (!SkipSpaces(&filePtr, mEnd)) break;
                     pairOut.first = strtoul10(filePtr, &filePtr);
 
                     // then parse the vertex weight
-                    if (!SkipSpaces(&filePtr)) break;
+                    if (!SkipSpaces(&filePtr, mEnd)) break;
                     filePtr = fast_atoreal_move<float>(filePtr, pairOut.second);
 
                     // -1 marks unused entries
@@ -1675,7 +1699,7 @@ void Parser::ParseLV3MeshNormalListBlock(ASE::Mesh &sMesh) {
 // ------------------------------------------------------------------------------------------------
 void Parser::ParseLV4MeshFace(ASE::Face &out) {
     // skip spaces and tabs
-    if (!SkipSpaces(&filePtr)) {
+    if (!SkipSpaces(&filePtr, mEnd)) {
         LogWarning("Unable to parse *MESH_FACE Element: Unexpected EOL [#1]");
         SkipToNextToken();
         return;
@@ -1685,7 +1709,7 @@ void Parser::ParseLV4MeshFace(ASE::Face &out) {
     out.iFace = strtoul10(filePtr, &filePtr);
 
     // next character should be ':'
-    if (!SkipSpaces(&filePtr)) {
+    if (!SkipSpaces(&filePtr, mEnd)) {
         // FIX: there are some ASE files which haven't got : here ....
         LogWarning("Unable to parse *MESH_FACE Element: Unexpected EOL. \':\' expected [#2]");
         SkipToNextToken();
@@ -1697,7 +1721,7 @@ void Parser::ParseLV4MeshFace(ASE::Face &out) {
     // Parse all mesh indices
     for (unsigned int i = 0; i < 3; ++i) {
         unsigned int iIndex = 0;
-        if (!SkipSpaces(&filePtr)) {
+        if (!SkipSpaces(&filePtr, mEnd)) {
             LogWarning("Unable to parse *MESH_FACE Element: Unexpected EOL");
             SkipToNextToken();
             return;
@@ -1723,7 +1747,7 @@ void Parser::ParseLV4MeshFace(ASE::Face &out) {
         ++filePtr;
 
         // next character should be ':'
-        if (!SkipSpaces(&filePtr) || ':' != *filePtr) {
+        if (!SkipSpaces(&filePtr, mEnd) || ':' != *filePtr) {
             LogWarning("Unable to parse *MESH_FACE Element: "
                        "Unexpected EOL. \':\' expected [#2]");
             SkipToNextToken();
@@ -1731,9 +1755,9 @@ void Parser::ParseLV4MeshFace(ASE::Face &out) {
         }
 
         ++filePtr;
-        if (!SkipSpaces(&filePtr)) {
+        if (!SkipSpaces(&filePtr, mEnd)) {
             LogWarning("Unable to parse *MESH_FACE Element: Unexpected EOL. "
-                       "Vertex index ecpected [#4]");
+                       "Vertex index expected [#4]");
             SkipToNextToken();
             return;
         }
@@ -1752,7 +1776,7 @@ void Parser::ParseLV4MeshFace(ASE::Face &out) {
 
     // parse the smoothing group of the face
     if (TokenMatch(filePtr, "*MESH_SMOOTHING", 15)) {
-        if (!SkipSpaces(&filePtr)) {
+        if (!SkipSpaces(&filePtr, mEnd)) {
             LogWarning("Unable to parse *MESH_SMOOTHING Element: "
                        "Unexpected EOL. Smoothing group(s) expected [#5]");
             SkipToNextToken();
@@ -1771,12 +1795,12 @@ void Parser::ParseLV4MeshFace(ASE::Face &out) {
                     LogWarning(message.c_str());
                 }
             }
-            SkipSpaces(&filePtr);
+            SkipSpaces(&filePtr, mEnd);
             if (',' != *filePtr) {
                 break;
             }
             ++filePtr;
-            SkipSpaces(&filePtr);
+            SkipSpaces(&filePtr, mEnd);
         }
     }
 
@@ -1792,7 +1816,7 @@ void Parser::ParseLV4MeshFace(ASE::Face &out) {
     }
 
     if (TokenMatch(filePtr, "*MESH_MTLID", 11)) {
-        if (!SkipSpaces(&filePtr)) {
+        if (!SkipSpaces(&filePtr, mEnd)) {
             LogWarning("Unable to parse *MESH_MTLID Element: Unexpected EOL. "
                        "Material index expected [#6]");
             SkipToNextToken();
@@ -1840,7 +1864,7 @@ void Parser::ParseLV4MeshFloatTriple(ai_real *apOut) {
 // ------------------------------------------------------------------------------------------------
 void Parser::ParseLV4MeshFloat(ai_real &fOut) {
     // skip spaces and tabs
-    if (!SkipSpaces(&filePtr)) {
+    if (!SkipSpaces(&filePtr, mEnd)) {
         // LOG
         LogWarning("Unable to parse float: unexpected EOL [#1]");
         fOut = 0.0;
@@ -1853,7 +1877,7 @@ void Parser::ParseLV4MeshFloat(ai_real &fOut) {
 // ------------------------------------------------------------------------------------------------
 void Parser::ParseLV4MeshLong(unsigned int &iOut) {
     // Skip spaces and tabs
-    if (!SkipSpaces(&filePtr)) {
+    if (!SkipSpaces(&filePtr, mEnd)) {
         // LOG
         LogWarning("Unable to parse long: unexpected EOL [#1]");
         iOut = 0;

code/AssetLib/ASE/ASEParser.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2024, assimp team
 
 All rights reserved.
 
@@ -620,6 +620,9 @@ public:
     //! Pointer to current data
     const char *filePtr;
 
+    /// The end pointer of the file data
+    const char *mEnd;
+
     //! background color to be passed to the viewer
     //! QNAN if none was found
     aiColor3D m_clrBackground;

code/AssetLib/Assbin/AssbinExporter.cpp

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

code/AssetLib/Assbin/AssbinExporter.h

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

code/AssetLib/Assbin/AssbinFileWriter.cpp

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

code/AssetLib/Assbin/AssbinFileWriter.h

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

code/AssetLib/Assbin/AssbinLoader.cpp

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

code/AssetLib/Assbin/AssbinLoader.h

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

code/AssetLib/Assxml/AssxmlExporter.cpp

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

code/AssetLib/Assxml/AssxmlExporter.h

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

code/AssetLib/Assxml/AssxmlFileWriter.cpp

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

code/AssetLib/Assxml/AssxmlFileWriter.h

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

code/AssetLib/B3D/B3DImporter.cpp

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

code/AssetLib/B3D/B3DImporter.h

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

code/AssetLib/BVH/BVHLoader.cpp

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

code/AssetLib/BVH/BVHLoader.h

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

code/AssetLib/Blender/BlenderBMesh.cpp

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

code/AssetLib/Blender/BlenderDNA.h

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

code/AssetLib/Blender/BlenderDNA.inl

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

code/AssetLib/Blender/BlenderIntermediate.h

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

code/AssetLib/Blender/BlenderLoader.cpp

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

code/AssetLib/Blender/BlenderLoader.h

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

code/AssetLib/Blender/BlenderModifier.cpp

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

code/AssetLib/Blender/BlenderModifier.h

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

code/AssetLib/Blender/BlenderScene.h

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

code/AssetLib/Blender/BlenderTessellator.cpp

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

code/AssetLib/Blender/BlenderTessellator.h

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

code/AssetLib/C4D/C4DImporter.cpp

@@ -46,10 +46,6 @@ 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>
@@ -111,7 +107,7 @@ 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;
@@ -305,7 +301,7 @@ void C4DImporter::RecurseHierarchy(BaseObject* object, aiNode* parent) {
 
     // based on Cineware sample code
     while (object) {
-        const LONG type = object->GetType();
+        const Int32 type = object->GetType();
         const Matrix& ml = object->GetMl();
 
         aiNode* const nd = new aiNode();
@@ -368,8 +364,8 @@ aiMesh* C4DImporter::ReadMesh(BaseObject* object) {
     PolygonObject* const polyObject = dynamic_cast<PolygonObject*>(object);
     ai_assert(polyObject != nullptr);
 
-    const LONG pointCount = polyObject->GetPointCount();
+    const Int32 pointCount = polyObject->GetPointCount();
-    const LONG polyCount = polyObject->GetPolygonCount();
+    const Int32 polyCount = polyObject->GetPolygonCount();
     if(!polyObject || !pointCount) {
         LogWarn("ignoring mesh with zero vertices or faces");
         return nullptr;
@@ -391,7 +387,7 @@ aiMesh* C4DImporter::ReadMesh(BaseObject* object) {
     unsigned int vcount = 0;
 
     // first count vertices
-    for (LONG i = 0; i < polyCount; i++)
+    for (Int32 i = 0; i < polyCount; i++)
     {
         vcount += 3;
 
@@ -434,7 +430,7 @@ aiMesh* C4DImporter::ReadMesh(BaseObject* object) {
     }
 
     // copy vertices and extra channels over and populate faces
-    for (LONG i = 0; i < polyCount; ++i, ++face) {
+    for (Int32 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;
@@ -511,7 +507,7 @@ aiMesh* C4DImporter::ReadMesh(BaseObject* object) {
         if (tangents_src) {
 
             for(unsigned int k = 0; k < face->mNumIndices; ++k) {
-                LONG l;
+                Int32 l;
                 switch(k) {
                 case 0:
                     l = polys[i].a;

code/AssetLib/C4D/C4DImporter.h

@@ -78,6 +78,8 @@ 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) 2006-2022, assimp team
+Copyright (c) 2006-2024, assimp team
 
 All rights reserved.
 
@@ -473,8 +473,9 @@ 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);
+                    SkipSpaces(&s, end);
                     msh.transform[y][x] = fast_atof(&s);
                 }
             }
@@ -486,12 +487,12 @@ void COBImporter::ReadBasicNodeInfo_Ascii(Node &msh, LineSplitter &splitter, con
 
 // ------------------------------------------------------------------------------------------------
 template <typename T>
-void COBImporter::ReadFloat3Tuple_Ascii(T &fill, const char **in) {
+void COBImporter::ReadFloat3Tuple_Ascii(T &fill, const char **in, const char *end) {
     const char *rgb = *in;
     for (unsigned int i = 0; i < 3; ++i) {
-        SkipSpaces(&rgb);
+        SkipSpaces(&rgb, end);
         if (*rgb == ',') ++rgb;
-        SkipSpaces(&rgb);
+        SkipSpaces(&rgb, end);
 
         fill[i] = fast_atof(&rgb);
     }
@@ -538,7 +539,7 @@ void COBImporter::ReadMat1_Ascii(Scene &out, LineSplitter &splitter, const Chunk
     }
 
     const char *rgb = splitter[1];
-    ReadFloat3Tuple_Ascii(mat.rgb, &rgb);
+    ReadFloat3Tuple_Ascii(mat.rgb, &rgb, splitter.getEnd());
 
     ++splitter;
     if (!splitter.match_start("alpha ")) {
@@ -617,20 +618,21 @@ void COBImporter::ReadLght_Ascii(Scene &out, LineSplitter &splitter, const Chunk
     }
 
     const char *rgb = splitter[1];
-    ReadFloat3Tuple_Ascii(msh.color, &rgb);
+    const char *end = splitter.getEnd();
+    ReadFloat3Tuple_Ascii(msh.color, &rgb, end);
 
-    SkipSpaces(&rgb);
+    SkipSpaces(&rgb, end);
     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);
+    SkipSpaces(rgb + 10, &rgb, end);
     msh.angle = fast_atof(&rgb);
 
-    SkipSpaces(&rgb);
+    SkipSpaces(&rgb, end);
     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);
+    SkipSpaces(rgb + 11, &rgb, end);
     msh.inner_angle = fast_atof(&rgb);
 
     // skip the rest for we can't handle this kind of physically-based lighting information.
@@ -703,14 +705,14 @@ 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);
+                SkipSpaces(&s, end);
                 v.x = fast_atof(&s);
-                SkipSpaces(&s);
+                SkipSpaces(&s, end);
                 v.y = fast_atof(&s);
-                SkipSpaces(&s);
+                SkipSpaces(&s, end);
                 v.z = fast_atof(&s);
             }
         } else if (splitter.match_start("Texture Vertices")) {
@@ -719,12 +721,13 @@ 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);
+                SkipSpaces(&s, end);
                 v.x = fast_atof(&s);
-                SkipSpaces(&s);
+                SkipSpaces(&s, end);
                 v.y = fast_atof(&s);
             }
         } else if (splitter.match_start("Faces")) {
@@ -749,8 +752,9 @@ 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)) {
+                    if (!SkipSpaces(&s, end)) {
                         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) 2006-2022, assimp team
+Copyright (c) 2006-2024, 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);
+    void ReadFloat3Tuple_Ascii(T &fill, const char **in, const char *end);
 
     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) 2006-2022, assimp team
+Copyright (c) 2006-2024, assimp team
 
 All rights reserved.
 

code/AssetLib/CSM/CSMLoader.cpp

@@ -3,7 +3,7 @@
 Open Asset Import Library (assimp)
 ---------------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2024, assimp team
 
 
 
@@ -82,23 +82,20 @@ 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;
 }
 
@@ -118,29 +115,29 @@ 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);
+        SkipSpaces(&buffer, end);
         if ('\0' == *buffer)
             break;
 
         if ('$'  == *buffer)    {
             ++buffer;
             if (TokenMatchI(buffer,"firstframe",10))    {
-                SkipSpaces(&buffer);
+                SkipSpaces(&buffer, end);
                 first = strtol10(buffer,&buffer);
             }
             else if (TokenMatchI(buffer,"lastframe",9))     {
-                SkipSpaces(&buffer);
+                SkipSpaces(&buffer, end);
                 last = strtol10(buffer,&buffer);
             }
             else if (TokenMatchI(buffer,"rate",4))  {
-                SkipSpaces(&buffer);
+                SkipSpaces(&buffer, end);
-                float d;
+                float d = { 0.0f };
                 buffer = fast_atoreal_move<float>(buffer,d);
                 anim->mTicksPerSecond = d;
             }
@@ -148,8 +145,8 @@ void CSMImporter::InternReadFile( const std::string& pFile,
                 std::vector< aiNodeAnim* > anims_temp;
                 anims_temp.reserve(30);
                 while (true) {
-                    SkipSpaces(&buffer);
+                    SkipSpaces(&buffer, end);
-                    if (IsLineEnd(*buffer) && SkipSpacesAndLineEnd(&buffer) && *buffer == '$')
+                    if (IsLineEnd(*buffer) && SkipSpacesAndLineEnd(&buffer, end) && *buffer == '$')
                         break; // next section
 
                     // Construct a new node animation channel and setup its name
@@ -157,41 +154,43 @@ 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)) {
-            else if (TokenMatchI(buffer,"points",6))    {
+                if (!anim->mNumChannels) {
-                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);
+                    SkipSpaces(&buffer, end);
-                    if (IsLineEnd(*buffer) && (!SkipSpacesAndLineEnd(&buffer) || *buffer == '$'))   {
+                    if (IsLineEnd(*buffer) && (!SkipSpacesAndLineEnd(&buffer, end) || *buffer == '$'))   {
                         break; // next section
                     }
 
@@ -202,8 +201,8 @@ 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)   { /* need to reallocate? */
+                        if (s->mNumPositionKeys == alloc)   {
-
+                            // need to reallocate?
                             aiVectorKey* old = s->mPositionKeys;
                             s->mPositionKeys = new aiVectorKey[s->mNumPositionKeys = alloc*2];
                             ::memcpy(s->mPositionKeys,old,sizeof(aiVectorKey)*alloc);
@@ -211,24 +210,26 @@ void CSMImporter::InternReadFile( const std::string& pFile,
                         }
 
                         // read x,y,z
-                        if(!SkipSpacesAndLineEnd(&buffer))
+                        if (!SkipSpacesAndLineEnd(&buffer, end)) {
                             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))
+                            if (!SkipSpacesAndLineEnd(&buffer, end)) {
                                 throw DeadlyImportError("CSM: Unexpected EOF occurred reading sample y coord");
+                            }
                             buffer = fast_atoreal_move<float>(buffer, (float&)sub->mValue.y);
 
-                            if(!SkipSpacesAndLineEnd(&buffer))
+                            if (!SkipSpacesAndLineEnd(&buffer, end)) {
                                 throw DeadlyImportError("CSM: Unexpected EOF occurred reading sample z coord");
+                            }
                             buffer = fast_atoreal_move<float>(buffer, (float&)sub->mValue.z);
 
                             ++s->mNumPositionKeys;
@@ -236,22 +237,22 @@ 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);
+            SkipLine(&buffer, end);
         }
     }
 

code/AssetLib/CSM/CSMLoader.h

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

code/AssetLib/Collada/ColladaExporter.cpp

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

code/AssetLib/Collada/ColladaExporter.h

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

code/AssetLib/Collada/ColladaHelper.cpp

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

code/AssetLib/Collada/ColladaHelper.h

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

code/AssetLib/Collada/ColladaLoader.cpp

@@ -3,7 +3,7 @@
 Open Asset Import Library (assimp)
 ---------------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2024, assimp team
 
 All rights reserved.
 
@@ -247,7 +247,9 @@ 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());
-    node->mChildren = new aiNode *[node->mNumChildren];
+    if (node->mNumChildren != 0) {
+        node->mChildren = new aiNode * [node->mNumChildren];
+    }
 
     for (size_t a = 0; a < pNode->mChildren.size(); ++a) {
         node->mChildren[a] = BuildHierarchy(pParser, pNode->mChildren[a]);

code/AssetLib/Collada/ColladaLoader.h

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

code/AssetLib/Collada/ColladaParser.cpp

@@ -3,7 +3,7 @@
 Open Asset Import Library (assimp)
 ---------------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2024, assimp team
 
 All rights reserved.
 
@@ -635,7 +635,8 @@ void ColladaParser::ReadController(XmlNode &node, Collada::Controller &controlle
         const std::string &currentName = currentNode.name();
         if (currentName == "morph") {
             controller.mType = Morph;
-            controller.mMeshId = currentNode.attribute("source").as_string();
+            std::string id = 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;
@@ -654,12 +655,13 @@ 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);
+                SkipSpacesAndLineEnd(&content, end);
                 // read a number
                 content = fast_atoreal_move<ai_real>(content, controller.mBindShapeMatrix[a]);
                 // skip whitespace after it
-                SkipSpacesAndLineEnd(&content);
+                SkipSpacesAndLineEnd(&content, end);
             }
         } else if (currentName == "source") {
             ReadSource(currentNode);
@@ -740,7 +742,9 @@ 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 char *text = currentNode.text().as_string();
+            const std::string stdText = 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) {
@@ -749,7 +753,7 @@ void ColladaParser::ReadControllerWeights(XmlNode &node, Collada::Controller &pC
 
                 *it = strtoul10(text, &text);
                 numWeights += *it;
-                SkipSpacesAndLineEnd(&text);
+                SkipSpacesAndLineEnd(&text, end);
             }
             // reserve weight count
             pController.mWeights.resize(numWeights);
@@ -758,18 +762,19 @@ 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);
+                SkipSpacesAndLineEnd(&text, end);
                 it->first = strtoul10(text, &text);
-                SkipSpacesAndLineEnd(&text);
+                SkipSpacesAndLineEnd(&text, end);
                 if (*text == 0) {
                     throw DeadlyImportError("Out of data while reading <vertex_weights>");
                 }
                 it->second = strtoul10(text, &text);
-                SkipSpacesAndLineEnd(&text);
+                SkipSpacesAndLineEnd(&text, end);
             }
         }
     }
@@ -952,15 +957,16 @@ 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);
+            SkipSpacesAndLineEnd(&content, end);
 
             content = fast_atoreal_move<ai_real>(content, (ai_real &)pLight.mColor.g);
-            SkipSpacesAndLineEnd(&content);
+            SkipSpacesAndLineEnd(&content, end);
 
             content = fast_atoreal_move<ai_real>(content, (ai_real &)pLight.mColor.b);
-            SkipSpacesAndLineEnd(&content);
+            SkipSpacesAndLineEnd(&content, end);
         } else if (currentName == "constant_attenuation") {
             XmlParser::getValueAsFloat(currentNode, pLight.mAttConstant);
         } else if (currentName == "linear_attenuation") {
@@ -1220,18 +1226,19 @@ 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);
+            SkipSpacesAndLineEnd(&content, end);
 
             content = fast_atoreal_move<ai_real>(content, (ai_real &)pColor.g);
-            SkipSpacesAndLineEnd(&content);
+            SkipSpacesAndLineEnd(&content, end);
 
             content = fast_atoreal_move<ai_real>(content, (ai_real &)pColor.b);
-            SkipSpacesAndLineEnd(&content);
+            SkipSpacesAndLineEnd(&content, end);
 
             content = fast_atoreal_move<ai_real>(content, (ai_real &)pColor.a);
-            SkipSpacesAndLineEnd(&content);
+            SkipSpacesAndLineEnd(&content, end);
         } else if (currentName == "texture") {
             // get name of source texture/sampler
             XmlParser::getStdStrAttribute(currentNode, "texture", pSampler.mName);
@@ -1345,6 +1352,7 @@ 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") {
@@ -1415,6 +1423,7 @@ 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();
@@ -1433,11 +1442,13 @@ 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);
+                SkipSpacesAndLineEnd(&content, end);
             }
         } else {
             data.mValues.reserve(count);
@@ -1452,7 +1463,7 @@ void ColladaParser::ReadDataArray(XmlNode &node) {
                 content = fast_atoreal_move<ai_real>(content, value);
                 data.mValues.push_back(value);
                 // skip whitespace after it
-                SkipSpacesAndLineEnd(&content);
+                SkipSpacesAndLineEnd(&content, end);
             }
         }
     }
@@ -1617,8 +1628,10 @@ 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);
+                    SkipSpacesAndLineEnd(&content, end);
                     for (unsigned int a = 0; a < numPrimitives; a++) {
                         if (*content == 0) {
                             throw DeadlyImportError("Expected more values while reading <vcount> contents.");
@@ -1626,7 +1639,7 @@ void ColladaParser::ReadIndexData(XmlNode &node, Mesh &pMesh) {
                         // read a number
                         vcount.push_back((size_t)strtoul10(content, &content));
                         // skip whitespace after it
-                        SkipSpacesAndLineEnd(&content);
+                        SkipSpacesAndLineEnd(&content, end);
                     }
                 }
             }
@@ -1735,14 +1748,16 @@ size_t ColladaParser::ReadPrimitives(XmlNode &node, Mesh &pMesh, std::vector<Inp
         std::string v;
         XmlParser::getValueAsString(node, v);
         const char *content = v.c_str();
-        SkipSpacesAndLineEnd(&content);
+        const char *end = content + v.size();
+
+        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);
+            SkipSpacesAndLineEnd(&content, end);
         }
     }
 
@@ -1772,6 +1787,10 @@ 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
@@ -1796,13 +1815,19 @@ 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;
@@ -2166,15 +2191,15 @@ void ColladaParser::ReadNodeTransformation(XmlNode &node, Node *pNode, Transform
     }
 
     // how many parameters to read per transformation type
-    static const unsigned int sNumParameters[] = { 9, 4, 3, 3, 7, 16 };
+    static constexpr 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);
+        SkipSpacesAndLineEnd(&content, end);
         // read a number
         content = fast_atoreal_move<ai_real>(content, tf.f[a]);
     }

code/AssetLib/Collada/ColladaParser.h

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

code/AssetLib/DXF/DXFHelper.h

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

code/AssetLib/DXF/DXFLoader.cpp

@@ -3,7 +3,7 @@
 Open Asset Import Library (assimp)
 ---------------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2024, assimp team
 
 All rights reserved.
 
@@ -43,7 +43,6 @@ 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"
@@ -68,25 +67,267 @@ 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 - 16 are supported, the table is
+// color indices for DXF - 256 are supported, the table is
-// taken directly from the DXF spec.
+// taken directly from the AutoCad Index (ACI) table
-static const aiColor4D g_aclrDxfIndexColors[] = {
+// https://gohtx.com/acadcolors.php
-    aiColor4D(0.6f, 0.6f, 0.6f, 1.0f),
+//STH 2024-0126
-    aiColor4D (1.0f, 0.0f, 0.0f, 1.0f), // red
+static const aiColor4D g_aclrDxfIndexColors[256] = {
-    aiColor4D (0.0f, 1.0f, 0.0f, 1.0f), // green
+    aiColor4D (0.0f, 0.0f ,0.0f, 1.0f), //dxf color code 0
-    aiColor4D (0.0f, 0.0f, 1.0f, 1.0f), // blue
+    aiColor4D (1.0f, 0.0f ,0.0f, 1.0f), //dxf color code 1
-    aiColor4D (0.3f, 1.0f, 0.3f, 1.0f), // light green
+    aiColor4D (1.0f, 1.0f ,0.0f, 1.0f), //dxf color code 2
-    aiColor4D (0.3f, 0.3f, 1.0f, 1.0f), // light blue
+    aiColor4D (0.0f, 1.0f ,0.0f, 1.0f), //dxf color code 3
-    aiColor4D (1.0f, 0.3f, 0.3f, 1.0f), // light red
+    aiColor4D (0.0f, 1.0f ,1.0f, 1.0f), //dxf color code 4
-    aiColor4D (1.0f, 0.0f, 1.0f, 1.0f), // pink
+    aiColor4D (0.0f, 0.0f ,1.0f, 1.0f), //dxf color code 5
-    aiColor4D (1.0f, 0.6f, 0.0f, 1.0f), // orange
+    aiColor4D (1.0f, 0.0f ,1.0f, 1.0f), //dxf color code 6
-    aiColor4D (0.6f, 0.3f, 0.0f, 1.0f), // dark orange
+    aiColor4D (1.0f, 1.0f ,1.0f, 1.0f), //dxf color code 7
-    aiColor4D (1.0f, 1.0f, 0.0f, 1.0f), // yellow
+    aiColor4D (0.3f, 0.3f ,0.3f, 1.0f), //dxf color code 8
-    aiColor4D (0.3f, 0.3f, 0.3f, 1.0f), // dark gray
+    aiColor4D (0.5f, 0.5f ,0.5f, 1.0f), //dxf color code 9
-    aiColor4D (0.8f, 0.8f, 0.8f, 1.0f), // light gray
+    aiColor4D (1.0f, 0.0f ,0.0f, 1.0f), //dxf color code 10
-    aiColor4D (0.0f, 00.f, 0.0f, 1.0f), // black
+    aiColor4D (1.0f, 0.7f ,0.7f, 1.0f), //dxf color code 11
-    aiColor4D (1.0f, 1.0f, 1.0f, 1.0f), // white
+    aiColor4D (0.7f, 0.0f ,0.0f, 1.0f), //dxf color code 12
-    aiColor4D (0.6f, 0.0f, 1.0f, 1.0f)  // violet
+    aiColor4D (0.7f, 0.5f ,0.5f, 1.0f), //dxf color code 13
+    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]))
@@ -372,8 +613,12 @@ void DXFImporter::ExpandBlockReferences(DXF::Block& bl,const DXF::BlockMap& bloc
                 // XXX order
                 aiMatrix4x4 trafo, tmp;
                 aiMatrix4x4::Translation(-bl_src.base,trafo);
-                trafo *= aiMatrix4x4::Scaling(insert.scale,tmp);
+                //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);
 
                 // 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) 2006-2022, assimp team
+Copyright (c) 2006-2024, assimp team
 
 All rights reserved.
 

code/AssetLib/FBX/FBXAnimation.cpp

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

code/AssetLib/FBX/FBXBinaryTokenizer.cpp

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

code/AssetLib/FBX/FBXCommon.h

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

code/AssetLib/FBX/FBXCompileConfig.h

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

code/AssetLib/FBX/FBXConverter.cpp

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2024, assimp team
 
 All rights reserved.
 
@@ -76,6 +76,53 @@ 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(),
@@ -133,6 +180,8 @@ 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 {
+        correctRootTransform(mSceneOut);
     }
 }
 
@@ -3239,9 +3288,9 @@ aiNodeAnim* FBXConverter::GenerateSimpleNodeAnim(const std::string& name,
     }
 
     if (keyframeLists[TransformationComp_Rotation].size() > 0) {
-        InterpolateKeys(outRotations, keytimes, keyframeLists[TransformationComp_Rotation], AI_DEG_TO_RAD(defRotation), maxTime, minTime, rotOrder);
+        InterpolateKeys(outRotations, keytimes, keyframeLists[TransformationComp_Rotation], defRotation, maxTime, minTime, rotOrder);
     } else {
-        aiQuaternion defQuat = EulerToQuaternion(AI_DEG_TO_RAD(defRotation), rotOrder);
+        aiQuaternion defQuat = EulerToQuaternion(defRotation, rotOrder);
         for (size_t i = 0; i < keyCount; ++i) {
             outRotations[i].mTime = CONVERT_FBX_TIME(keytimes[i]) * anim_fps;
             outRotations[i].mValue = defQuat;
@@ -3263,7 +3312,7 @@ 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(AI_DEG_TO_RAD(preRotation), Model::RotOrder_EulerXYZ);
+        const aiQuaternion preQuat = EulerToQuaternion(preRotation, Model::RotOrder_EulerXYZ);
         for (size_t i = 0; i < keyCount; ++i) {
             outRotations[i].mValue = preQuat * outRotations[i].mValue;
         }
@@ -3271,7 +3320,7 @@ 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(AI_DEG_TO_RAD(postRotation), Model::RotOrder_EulerXYZ);
+        const aiQuaternion postQuat = EulerToQuaternion(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) 2006-2022, assimp team
+Copyright (c) 2006-2024, assimp team
 
 
 All rights reserved.

code/AssetLib/FBX/FBXDeformer.cpp

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

code/AssetLib/FBX/FBXDocument.cpp

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

code/AssetLib/FBX/FBXDocument.h

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

code/AssetLib/FBX/FBXDocumentUtil.cpp

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

code/AssetLib/FBX/FBXExportNode.cpp

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

code/AssetLib/FBX/FBXExportNode.h

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

code/AssetLib/FBX/FBXExportProperty.cpp

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

code/AssetLib/FBX/FBXExportProperty.h

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

code/AssetLib/FBX/FBXExporter.cpp

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2024, assimp team
 
 All rights reserved.
 
@@ -69,6 +69,7 @@ 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/
@@ -1062,7 +1063,7 @@ aiMatrix4x4 get_world_transform(const aiNode* node, const aiScene* scene)
 }
 
 inline int64_t to_ktime(double ticks, const aiAnimation* anim) {
-    if (anim->mTicksPerSecond <= 0) {
+    if (FP_ZERO == std::fpclassify(anim->mTicksPerSecond)) {    
         return static_cast<int64_t>(ticks) * FBX::SECOND;
     }
     return (static_cast<int64_t>(ticks / anim->mTicksPerSecond)) * FBX::SECOND;
@@ -1088,6 +1089,8 @@ 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;
@@ -1444,6 +1447,8 @@ void FBXExporter::WriteObjects ()
             // "TransparentColor" / "TransparencyFactor"...
             // thanks FBX, for your insightful interpretation of consistency
             p.AddP70colorA("TransparentColor", c.r, c.g, c.b);
+
+            if (!bTransparencyFactorReferencedToOpacity) {
                 // TransparencyFactor defaults to 0.0, so set it to 1.0.
                 // note: Maya always sets this to 1.0,
                 // so we can't use it sensibly as "Opacity".
@@ -1452,6 +1457,12 @@ void FBXExporter::WriteObjects ()
                 // 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);
         }
@@ -1748,7 +1759,7 @@ 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 + "Blendshape");
+        bsnode.AddProperty(blendshape_name + FBX::SEPARATOR + "Geometry");
         bsnode.AddProperty("Shape");
         bsnode.AddChild("Version", int32_t(100));
         bsnode.Begin(outstream, binary, indent);
@@ -1807,7 +1818,7 @@ 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<float>fFullWeights;
+        std::vector<double>fFullWeights;
         fFullWeights.push_back(100.);
         sdnode.AddChild("FullWeights", fFullWeights);
         sdnode.Dump(outstream, binary, indent);

code/AssetLib/FBX/FBXExporter.h

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

code/AssetLib/FBX/FBXImportSettings.h

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

code/AssetLib/FBX/FBXImporter.cpp

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

code/AssetLib/FBX/FBXImporter.h

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

code/AssetLib/FBX/FBXMaterial.cpp

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

code/AssetLib/FBX/FBXMeshGeometry.cpp

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

code/AssetLib/FBX/FBXMeshGeometry.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2023, assimp team
+Copyright (c) 2006-2024, assimp team
 
 All rights reserved.