Update HMPLoader.cpp

- Fix possible division by zero
- closes https://github.com/assimp/assimp/issues/4235

.coveralls.yml

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

.github/dependabot.yml

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

.github/workflows/ccpp.yml

@@ -6,9 +6,6 @@ on:
   pull_request:
     branches: [ master ]
 
-permissions:
-  contents: read # to fetch code (actions/checkout)
-
 jobs:
   job:
     name: ${{ matrix.name }}-build-and-test
@@ -46,10 +43,8 @@ jobs:
             toolchain: ninja-vs-win64-cxx17
 
     steps:
-    - uses: actions/checkout@v4
-      with:
-          submodules: true
-          
+    - uses: actions/checkout@v2
+    
     - uses: lukka/get-cmake@latest
     
     - uses: ilammy/msvc-dev-cmd@v1
@@ -69,15 +64,21 @@ jobs:
 
     - name: Checkout Hunter toolchains
       if: endsWith(matrix.name, 'hunter')
-      uses: actions/checkout@v4
+      uses: actions/checkout@v2
       with:
         repository: cpp-pm/polly
         path: cmake/polly
 
+    - name: Remove contrib directory for Hunter builds
+      if: contains(matrix.name, 'hunter')
+      uses: JesseTG/rm@v1.0.2
+      with:
+        path: contrib
+
     - name: Cache DX SDK
       id: dxcache
       if: contains(matrix.name, 'windows')
-      uses: actions/cache@v3
+      uses: actions/cache@v2
       with:
         path: '${{ github.workspace }}/DX_SDK'
         key: ${{ runner.os }}-DX_SDK
@@ -93,7 +94,7 @@ jobs:
     - name: Set Windows specific CMake arguments
       if: contains(matrix.name, 'windows')
       id: windows_extra_cmake_args
-      run: echo "::set-output name=args::-DASSIMP_BUILD_ASSIMP_TOOLS=1 -DASSIMP_BUILD_ASSIMP_VIEW=1 -DASSIMP_BUILD_ZLIB=1"
+      run: echo "::set-output name=args::-DASSIMP_BUILD_ASSIMP_TOOLS=1 -DASSIMP_BUILD_ASSIMP_VIEW=1"
     
     - name: Set Hunter specific CMake arguments
       if: contains(matrix.name, 'hunter')
@@ -109,7 +110,7 @@ jobs:
         cmakeListsOrSettingsJson: CMakeListsTxtAdvanced
         cmakeListsTxtPath: '${{ github.workspace }}/CMakeLists.txt'
         cmakeAppendedArgs: '-GNinja -DCMAKE_BUILD_TYPE=Release ${{ steps.windows_extra_cmake_args.outputs.args }} ${{ steps.hunter_extra_cmake_args.outputs.args }}'
-        buildWithCMakeArgs: '--parallel 24 -v'
+        buildWithCMakeArgs: '-- -v'
         buildDirectory: '${{ github.workspace }}/build/'
         
     - name: Exclude certain tests in Hunter specific builds
@@ -121,7 +122,7 @@ jobs:
       run: cd build/bin && ./unit ${{ steps.hunter_extra_test_args.outputs.args }}
       shell: bash
 
-    - uses: actions/upload-artifact@v3
+    - uses: actions/upload-artifact@v2
       if: matrix.name == 'windows-msvc'
       with:
         name: 'assimp-bins-${{ matrix.name }}-${{ github.sha }}'

.github/workflows/cifuzz.yml

@@ -1,26 +0,0 @@
-name: CIFuzz
-on: [pull_request]
-jobs:
-  Fuzzing:
-    runs-on: ubuntu-latest
-    steps:
-    - name: Build Fuzzers
-      id: build
-      uses: google/oss-fuzz/infra/cifuzz/actions/build_fuzzers@master
-      with:
-        oss-fuzz-project-name: 'assimp'
-        dry-run: false
-        language: c++
-    - name: Run Fuzzers
-      uses: google/oss-fuzz/infra/cifuzz/actions/run_fuzzers@master
-      with:
-        oss-fuzz-project-name: 'assimp'
-        fuzz-seconds: 300
-        dry-run: false
-        language: c++
-    - name: Upload Crash
-      uses: actions/upload-artifact@v3
-      if: failure() && steps.build.outcome == 'success'
-      with:
-        name: artifacts
-        path: ./out/artifacts

.github/workflows/sanitizer.yml

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

.travis.sh

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

.travis.yml

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

BUILDBINARIES_EXAMPLE.bat

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

Build.md

@@ -7,15 +7,14 @@ You can download and install assimp using the [vcpkg](https://github.com/Microso
     cd vcpkg
     ./bootstrap-vcpkg.sh
     ./vcpkg integrate install
-    ./vcpkg install assimp
+    vcpkg install assimp
 ```
 The assimp port in vcpkg is kept up to date by Microsoft team members and community contributors. If the version is out of date, please [create an issue or pull request](https://github.com/Microsoft/vcpkg) on the vcpkg repository.
 
 ## Install on Ubuntu
 You can install the Asset-Importer-Lib via apt:
 ```
-sudo apt-get update
-sudo apt-get install libassimp-dev
+sudo apt-get install assimp
 ```
 
 ## Install pyassimp
@@ -27,7 +26,7 @@ pip install pyassimp
 ## Manual build instructions
 
 ### Install CMake
-Asset-Importer-Lib can be built for a lot of different platforms. We are using cmake to generate the build environment for these via cmake. So you have to make sure that you have a working cmake-installation on your system. You can download it at https://cmake.org/ or for linux install it via
+Asset-Importer-Lib can be build for a lot of different platforms. We are using cmake to generate the build environment for these via cmake. So you have to make sure that you have a working cmake-installation on your system. You can download it at https://cmake.org/ or for linux install it via
 ```bash
 sudo apt-get install cmake
 ```
@@ -46,12 +45,12 @@ cmake --build .
 
 ### Build instructions for Windows with Visual-Studio
 
-First, you have to install Visual-Studio on your windows-system. You can get the Community-Version for free here: https://visualstudio.microsoft.com/de/downloads/
+First you have to install Visual-Studio on your windows-system. You can get the Community-Version for free here: https://visualstudio.microsoft.com/de/downloads/
 To generate the build environment for your IDE open a command prompt, navigate to your repo and type:
 ```bash
 cmake CMakeLists.txt
 ```
-This will generate the project files for the visual studio. All dependencies used to build Asset-Importer-Lib shall be part of the repo. If you want to use you own zlib installation this is possible as well. Check the options for it.
+This will generate the project files for the visual studio. All dependencies used to build Asset-IMporter-Lib shall be part of the repo. If you want to use you own zlib.installation this is possible as well. Check the options for it.
 
 ### Build instructions for Windows with UWP
 See <https://stackoverflow.com/questions/40803170/cmake-uwp-using-cmake-to-build-universal-windows-app>
@@ -63,9 +62,9 @@ Open a terminal and got to your repository. You can generate the makefiles and b
 cmake CMakeLists.txt
 make -j4
 ```
-The option -j describes the number of parallel processes for the build. In this case make will try to use 4 cores for the build.
+The option -j descripes the number of parallel processes for the build. In this case make will try to use 4 cores for the build.
 
-If you want to use an IDE for linux you can try QTCreator for instance. 
+If you want to use a IDE for linux you can try QTCreator for instance. 
 
 ### Build instructions for MinGW
  Older versions of MinGW's compiler (e.g. 5.1.0) do not support the -mbig_obj flag 
@@ -85,28 +84,23 @@ Besides the toolchain, compilation should be the same as for Linux / Unix.
 
 ### CMake build options
 The cmake-build-environment provides options to configure the build. The following options can be used:
-- **ASSIMP_HUNTER_ENABLED (default OFF)**: Enable Hunter package manager support.
-- **BUILD_SHARED_LIBS (default ON)**: Generation of shared libs (dll for windows, so for Linux). Set this to OFF to get a static lib.
-- **ASSIMP_BUILD_FRAMEWORK (default OFF, MacOnly)**: Build package as Mac OS X Framework bundle.
-- **ASSIMP_DOUBLE_PRECISION (default OFF)**: All data will be stored as double values.
-- **ASSIMP_OPT_BUILD_PACKAGES (default OFF)**: Set to ON to generate CPack configuration files and packaging targets.
-- **ASSIMP_ANDROID_JNIIOSYSTEM (default OFF)**: Android JNI IOSystem support is active.
-- **ASSIMP_NO_EXPORT (default OFF)**: Disable Assimp's export functionality.
-- **ASSIMP_BUILD_ZLIB (default OFF)**: Build our own zlib.
-- **ASSIMP_BUILD_ALL_EXPORTERS_BY_DEFAULT (default ON)**: Build Assimp with all exporters enabled.
-- **ASSIMP_BUILD_ALL_IMPORTERS_BY_DEFAULT (default ON)**: Build Assimp with all importers enabled.
-- **ASSIMP_BUILD_ASSIMP_TOOLS (default OFF)**: If the supplementary tools for Assimp are built in addition to the library.
-- **ASSIMP_BUILD_SAMPLES (default OFF)**: If the official samples are built as well (needs Glut).
-- **ASSIMP_BUILD_TESTS (default ON)**: If the test suite for Assimp is built in addition to the library.
-- **ASSIMP_COVERALLS (default OFF)**: Enable this to measure test coverage.
-- **ASSIMP_INSTALL (default ON)**: Install Assimp library. Disable this if you want to use Assimp as a submodule.
-- **ASSIMP_WARNINGS_AS_ERRORS (default ON)**: Treat all warnings as errors.
-- **ASSIMP_ASAN (default OFF)**: Enable AddressSanitizer.
-- **ASSIMP_UBSAN (default OFF)**: Enable Undefined Behavior sanitizer.
-- **ASSIMP_BUILD_DOCS (default OFF)**: Build documentation using Doxygen. OBSOLETE, see https://github.com/assimp/assimp-docs
-- **ASSIMP_INJECT_DEBUG_POSTFIX (default ON)**: Inject debug postfix in .a/.so/.lib/.dll lib names
-- **ASSIMP_IGNORE_GIT_HASH (default OFF)**: Don't call git to get the hash.
-- **ASSIMP_INSTALL_PDB (default ON)**: Install MSVC debug files.
-- **USE_STATIC_CRT (default OFF)**: Link against the static MSVC runtime libraries.
-- **ASSIMP_BUILD_DRACO (default OFF)**: Build Draco libraries. Primarily for glTF.
-- **ASSIMP_BUILD_ASSIMP_VIEW (default ON, if DirectX found, OFF otherwise)**: Build Assimp view tool (requires DirectX).
+- **BUILD_SHARED_LIBS ( default ON )**: Generation of shared libs ( dll for windows, so for Linux ). Set this to OFF to get a static lib.
+- **BUILD_FRAMEWORK ( default OFF, MacOnly)**: Build package as Mac OS X Framework bundle
+- **ASSIMP_DOUBLE_PRECISION( default OFF )**: All data will be stored as double values.
+- **ASSIMP_OPT_BUILD_PACKAGES ( default OFF)**: Set to ON to generate CPack configuration files and packaging targets
+- **ASSIMP_ANDROID_JNIIOSYSTEM ( default OFF )**: Android JNI IOSystem support is active
+- **ASSIMP_NO_EXPORT ( default OFF )**: Disable Assimp's export functionality
+- **ASSIMP_BUILD_ZLIB ( default OFF )**: Build your own zlib
+- **ASSIMP_BUILD_ASSIMP_TOOLS ( default ON )**: If the supplementary tools for Assimp are built in addition to the library.
+- **ASSIMP_BUILD_SAMPLES ( default OFF )**: If the official samples are built as well (needs Glut).
+- **ASSIMP_BUILD_TESTS ( default ON )**: If the test suite for Assimp is built in addition to the library.
+- **ASSIMP_COVERALLS ( default OFF )**: Enable this to measure test coverage.
+- **ASSIMP_ERROR_MAX( default OFF)**: Enable all warnings.
+- **ASSIMP_WERROR( default OFF )**: Treat warnings as errors.
+- **ASSIMP_ASAN ( default OFF )**: Enable AddressSanitizer.
+- **ASSIMP_UBSAN ( default OFF )**: Enable Undefined Behavior sanitizer.
+- **SYSTEM_IRRXML ( default OFF )**: Use system installed Irrlicht/IrrXML library.
+- **BUILD_DOCS ( default OFF )**: Build documentation using Doxygen.
+- **INJECT_DEBUG_POSTFIX( default ON )**: Inject debug postfix in .a/.so lib names
+- **IGNORE_GIT_HASH ( default OFF )**: Don't call git to get the hash.
+- **ASSIMP_INSTALL_PDB ( default ON )**: Install MSVC debug files.

CMakeLists.txt

@@ -1,6 +1,6 @@
 # Open Asset Import Library (assimp)
 # ----------------------------------------------------------------------
-# Copyright (c) 2006-2023, assimp team
+# Copyright (c) 2006-2021, assimp team
 #
 # All rights reserved.
 #
@@ -49,13 +49,14 @@ 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/v0.24.17.tar.gz"
-    SHA1 "e6396699e414120e32557fe92db097b7655b760b"
+    URL "https://github.com/cpp-pm/hunter/archive/v0.23.311.tar.gz"
+    SHA1 "1a82b9b73055879181cb1466b2ab5d48ee8ae410"
   )
+
   add_definitions(-DASSIMP_USE_HUNTER)
 ENDIF()
 
-PROJECT(Assimp VERSION 5.3.0)
+PROJECT(Assimp VERSION 5.1.3)
 
 # All supported options ###############################################
 
@@ -83,9 +84,13 @@ OPTION( ASSIMP_NO_EXPORT
   "Disable Assimp's export functionality."
   OFF
 )
+OPTION( ASSIMP_BUILD_ZLIB
+  "Build your own zlib"
+  OFF
+)
 OPTION( ASSIMP_BUILD_ASSIMP_TOOLS
   "If the supplementary tools for Assimp are built in addition to the library."
-  OFF
+  ON
 )
 OPTION ( ASSIMP_BUILD_SAMPLES
   "If the official samples are built as well (needs Glut)."
@@ -103,9 +108,9 @@ OPTION( ASSIMP_INSTALL
   "Disable this if you want to use assimp as a submodule."
   ON
 )
-OPTION ( ASSIMP_WARNINGS_AS_ERRORS
-  "Treat all warnings as errors."
-  ON
+OPTION ( ASSIMP_ERROR_MAX
+  "Enable all warnings."
+  OFF
 )
 OPTION ( ASSIMP_ASAN
   "Enable AddressSanitizer."
@@ -129,23 +134,15 @@ OPTION ( ASSIMP_IGNORE_GIT_HASH
    OFF
 )
 
-IF (WIN32)
-  OPTION( ASSIMP_BUILD_ZLIB
-    "Build your own zlib"
-    ON
-  )
-ELSE()
-  OPTION( ASSIMP_BUILD_ZLIB
-    "Build your own zlib"
-    ON
-  )
-ENDIF()
-
-IF (WIN32)
+IF ( WIN32 )
   # Use subset of Windows.h
   ADD_DEFINITIONS( -DWIN32_LEAN_AND_MEAN )
 
   IF(MSVC)
+    OPTION ( ASSIMP_BUILD_ASSIMP_VIEW
+      "If the Assimp view tool is built. (requires DirectX)"
+      OFF )
+
     OPTION( ASSIMP_INSTALL_PDB
       "Install MSVC debug files."
       ON )
@@ -153,21 +150,6 @@ IF (WIN32)
       # Multibyte character set is deprecated since at least MSVC2015 (possibly earlier)
       ADD_DEFINITIONS( -DUNICODE -D_UNICODE )
     ENDIF()
-
-    # Link statically against c/c++ lib to avoid missing redistriburable such as
-    # "VCRUNTIME140.dll not found. Try reinstalling the app.", but give users
-    # a choice to opt for the shared runtime if they want.
-    option(USE_STATIC_CRT "Link against the static runtime libraries." OFF)
-
-    # The CMAKE_CXX_FLAGS vars can be overriden by some Visual Studio generators, so we use an alternative
-    # global method here:
-    if (${USE_STATIC_CRT})
-      add_compile_options(
-          $<$<CONFIG:>:/MT>
-          $<$<CONFIG:Debug>:/MTd>
-          $<$<CONFIG:Release>:/MT>
-      )
-    endif()
   ENDIF()
 ENDIF()
 
@@ -187,7 +169,6 @@ ENDIF()
 IF(NOT BUILD_SHARED_LIBS)
   MESSAGE(STATUS "Shared libraries disabled")
   SET(LINK_SEARCH_START_STATIC TRUE)
-  SET(CMAKE_FIND_LIBRARY_SUFFIXES ${CMAKE_STATIC_LIBRARY_SUFFIX} ${CMAKE_FIND_LIBRARY_SUFFIXES})
 ELSE()
   MESSAGE(STATUS "Shared libraries enabled")
 ENDIF()
@@ -200,9 +181,10 @@ SET (ASSIMP_VERSION ${ASSIMP_VERSION_MAJOR}.${ASSIMP_VERSION_MINOR}.${ASSIMP_VER
 SET (ASSIMP_SOVERSION 5)
 
 SET( ASSIMP_PACKAGE_VERSION "0" CACHE STRING "the package-specific version used for uploading the sources" )
-set(CMAKE_CXX_STANDARD 17)
-set(CMAKE_CXX_STANDARD_REQUIRED ON)
-set(CMAKE_C_STANDARD 99)
+if(NOT ASSIMP_HUNTER_ENABLED)
+  # Enable C++11 support globally
+  set_property( GLOBAL PROPERTY CXX_STANDARD 11 )
+endif()
 
 IF(NOT ASSIMP_IGNORE_GIT_HASH)
   # Get the current working branch
@@ -232,6 +214,16 @@ IF(ASSIMP_DOUBLE_PRECISION)
   ADD_DEFINITIONS(-DASSIMP_DOUBLE_PRECISION)
 ENDIF()
 
+CONFIGURE_FILE(
+  ${CMAKE_CURRENT_LIST_DIR}/revision.h.in
+  ${CMAKE_CURRENT_BINARY_DIR}/revision.h
+)
+
+CONFIGURE_FILE(
+  ${CMAKE_CURRENT_LIST_DIR}/include/assimp/config.h.in
+  ${CMAKE_CURRENT_BINARY_DIR}/include/assimp/config.h
+)
+
 INCLUDE_DIRECTORIES( BEFORE
   ./
   code/
@@ -249,129 +241,107 @@ SET(ASSIMP_LIBRARY_SUFFIX "" CACHE STRING "Suffix to append to library names")
 IF( UNIX )
   # Use GNUInstallDirs for Unix predefined directories
   INCLUDE(GNUInstallDirs)
-  # Ensure that we do not run into issues like http://www.tcm.phy.cam.ac.uk/sw/inodes64.html on 32 bit linux
-  IF(NOT ${OPERATING_SYSTEM} MATCHES "Android")
-    IF ( CMAKE_SIZEOF_VOID_P EQUAL 4) # only necessary for 32-bit linux
-      ADD_DEFINITIONS(-D_FILE_OFFSET_BITS=64 )
-    ENDIF()
-  ENDIF()
 ENDIF()
 
 # Grouped compiler settings ########################################
-IF ((CMAKE_C_COMPILER_ID MATCHES "GNU") AND NOT MINGW)
+IF ((CMAKE_C_COMPILER_ID MATCHES "GNU") AND NOT CMAKE_COMPILER_IS_MINGW)
   IF(NOT ASSIMP_HUNTER_ENABLED)
+    SET(CMAKE_CXX_STANDARD 11)
     SET(CMAKE_POSITION_INDEPENDENT_CODE ON)
   ENDIF()
-  
-  IF(CMAKE_CXX_COMPILER_VERSION GREATER_EQUAL 13)
-    MESSAGE(STATUS "GCC13 detected disabling \"-Wdangling-reference\" in Cpp files as it appears to be a false positive")
-    ADD_COMPILE_OPTIONS("$<$<COMPILE_LANGUAGE:CXX>:-Wno-dangling-reference>")
-  ENDIF()
   # hide all not-exported symbols
   IF(CMAKE_HOST_SYSTEM_PROCESSOR MATCHES "mips64" )
-    SET(CMAKE_CXX_FLAGS "-mxgot -fvisibility=hidden -fno-strict-aliasing -Wall ${CMAKE_CXX_FLAGS}")
-    SET(CMAKE_C_FLAGS "-fno-strict-aliasing ${CMAKE_C_FLAGS}")
-    SET(LIBSTDC++_LIBRARIES -lstdc++)
+	SET(CMAKE_CXX_FLAGS "-mxgot -fvisibility=hidden -fno-strict-aliasing -Wall ${CMAKE_CXX_FLAGS}")
+	SET(CMAKE_C_FLAGS "-fno-strict-aliasing ${CMAKE_C_FLAGS}")
+	SET(LIBSTDC++_LIBRARIES -lstdc++)
   ELSE()
-    SET(CMAKE_CXX_FLAGS "-fvisibility=hidden -fno-strict-aliasing -Wall ${CMAKE_CXX_FLAGS}")
-    SET(CMAKE_C_FLAGS "-fno-strict-aliasing ${CMAKE_C_FLAGS}")
-    SET(LIBSTDC++_LIBRARIES -lstdc++)
+	SET(CMAKE_CXX_FLAGS "-fvisibility=hidden -fno-strict-aliasing -Wall ${CMAKE_CXX_FLAGS}")
+	SET(CMAKE_C_FLAGS "-fno-strict-aliasing ${CMAKE_C_FLAGS}")
+	SET(LIBSTDC++_LIBRARIES -lstdc++)
   ENDIF()
 ELSEIF(MSVC)
   # enable multi-core compilation with MSVC
   IF(CMAKE_CXX_COMPILER_ID MATCHES "Clang" ) # clang-cl
-    ADD_COMPILE_OPTIONS(/bigobj)
+    ADD_COMPILE_OPTIONS(/bigobj /W4 /WX )
   ELSE() # msvc
-    ADD_COMPILE_OPTIONS(/MP /bigobj)
+    ADD_COMPILE_OPTIONS(/MP /bigobj /W4 /WX)
   ENDIF()
-  
   # disable "elements of array '' will be default initialized" warning on MSVC2013
   IF(MSVC12)
     ADD_COMPILE_OPTIONS(/wd4351)	
   ENDIF()
-  # supress warning for double to float conversion if Double precission is activated
-  ADD_COMPILE_OPTIONS(/wd4244) 
+  ADD_COMPILE_OPTIONS(/wd4244) #supress warning for double to float conversion if Double precission is activated
   SET(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} /D_DEBUG /Zi /Od")
-  SET(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE}")
+  SET(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} /Zi")
   SET(CMAKE_SHARED_LINKER_FLAGS_RELEASE "${CMAKE_SHARED_LINKER_FLAGS_RELEASE} /DEBUG:FULL /PDBALTPATH:%_PDB% /OPT:REF /OPT:ICF")
 ELSEIF (CMAKE_CXX_COMPILER_ID MATCHES "Clang" )
   IF(NOT ASSIMP_HUNTER_ENABLED)
+    SET(CMAKE_CXX_STANDARD 11)
     SET(CMAKE_POSITION_INDEPENDENT_CODE ON)
   ENDIF()
   SET(CMAKE_CXX_FLAGS "-fvisibility=hidden -fno-strict-aliasing -Wall -Wno-long-long ${CMAKE_CXX_FLAGS}" )
   SET(CMAKE_C_FLAGS "-fno-strict-aliasing ${CMAKE_C_FLAGS}")
-ELSEIF( MINGW )
+ELSEIF( CMAKE_COMPILER_IS_MINGW )
   IF (CMAKE_CXX_COMPILER_VERSION VERSION_LESS 7.0)
     message(FATAL_ERROR "MinGW is too old to be supported. Please update MinGW and try again.")
   ELSEIF(CMAKE_CXX_COMPILER_VERSION VERSION_LESS 7.3)
     message(WARNING "MinGW is old, if you experience errors, update MinGW.")
   ENDIF()
   IF(NOT ASSIMP_HUNTER_ENABLED)
-    SET(CMAKE_CXX_FLAGS "-std=gnu++17 ${CMAKE_CXX_FLAGS}")
+    SET(CMAKE_CXX_FLAGS "-std=gnu++11 ${CMAKE_CXX_FLAGS}")
     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}")
-    ELSE()
-      SET(CMAKE_CXX_FLAGS "-fvisibility=hidden -fno-strict-aliasing -Wall -Wno-long-long -Wa,-mbig-obj -O3 ${CMAKE_CXX_FLAGS}")
-    ENDIF()
-    SET(CMAKE_C_FLAGS "-fno-strict-aliasing ${CMAKE_C_FLAGS}")
+  SET(CMAKE_CXX_FLAGS "-fvisibility=hidden -fno-strict-aliasing -Wall -Wno-long-long -Wa,-mbig-obj -O3 ${CMAKE_CXX_FLAGS}")
+  SET(CMAKE_C_FLAGS "-fno-strict-aliasing ${CMAKE_C_FLAGS}")
 ENDIF()
 
 IF ( IOS AND NOT ASSIMP_HUNTER_ENABLED)
   IF (CMAKE_BUILD_TYPE STREQUAL "Debug")
-    SET(CMAKE_C_FLAGS   "${CMAKE_C_FLAGS} -fembed-bitcode -Og")
+    SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fembed-bitcode -Og")
     SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fembed-bitcode -Og")
   ELSE()
-    SET(CMAKE_C_FLAGS   "${CMAKE_C_FLAGS} -fembed-bitcode -O3")
+    SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fembed-bitcode -O3")
     SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fembed-bitcode -O3")
+    # Experimental for pdb generation
   ENDIF()
 ENDIF()
 
 IF (ASSIMP_COVERALLS)
   MESSAGE(STATUS "Coveralls enabled")
-  
   INCLUDE(Coveralls)
   SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -g -O0 -fprofile-arcs -ftest-coverage")
   SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -g -O0 -fprofile-arcs -ftest-coverage")
 ENDIF()
 
+IF (ASSIMP_ERROR_MAX)
+  MESSAGE(STATUS "Turning on all warnings")
+  IF (MSVC)
+    ADD_COMPILE_OPTIONS(/W4) # NB: there is a /Wall option, pedantic mode
+  ELSE()
+    SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall")
+    SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall")
+  ENDIF()
+ENDIF()
+
 IF (ASSIMP_ASAN)
   MESSAGE(STATUS "AddressSanitizer enabled")
-  
   SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=address")
-  SET(CMAKE_C_FLAGS   "${CMAKE_C_FLAGS} -fsanitize=address")
+  SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fsanitize=address")
 ENDIF()
 
 IF (ASSIMP_UBSAN)
   MESSAGE(STATUS "Undefined Behavior sanitizer enabled")
-
   SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=undefined,shift,shift-exponent,integer-divide-by-zero,unreachable,vla-bound,null,return,signed-integer-overflow,bounds,float-divide-by-zero,float-cast-overflow,nonnull-attribute,returns-nonnull-attribute,bool,enum,vptr,pointer-overflow,builtin -fno-sanitize-recover=all")
-  SET(CMAKE_C_FLAGS   "${CMAKE_C_FLAGS} -fsanitize=undefined,shift,shift-exponent,integer-divide-by-zero,unreachable,vla-bound,null,return,signed-integer-overflow,bounds,float-divide-by-zero,float-cast-overflow,nonnull-attribute,returns-nonnull-attribute,bool,enum,vptr,pointer-overflow,builtin -fno-sanitize-recover=all")
+  SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fsanitize=undefined,shift,shift-exponent,integer-divide-by-zero,unreachable,vla-bound,null,return,signed-integer-overflow,bounds,float-divide-by-zero,float-cast-overflow,nonnull-attribute,returns-nonnull-attribute,bool,enum,vptr,pointer-overflow,builtin -fno-sanitize-recover=all")
 ENDIF()
 
 INCLUDE (FindPkgMacros)
 INCLUDE (PrecompiledHeader)
 
 # Set Assimp project output directory variables.
-# Will respect top-level CMAKE_*_OUTPUT_DIRECTORY variables if any are set.
-IF(NOT DEFINED CMAKE_RUNTIME_OUTPUT_DIRECTORY)
-  SET(ASSIMP_RUNTIME_OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/bin" CACHE STRING "Path for runtime output files")
-ELSE()
-  SET(ASSIMP_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_RUNTIME_OUTPUT_DIRECTORY} CACHE STRING "Path for runtime output files")
-ENDIF()
-
-IF(NOT DEFINED CMAKE_LIBRARY_OUTPUT_DIRECTORY)
-  SET(ASSIMP_LIBRARY_OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/bin" CACHE STRING "Path for library output files")
-ELSE()
-  SET(ASSIMP_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_LIBRARY_OUTPUT_DIRECTORY} CACHE STRING "Path for runtime output files")
-ENDIF()
-
-IF(NOT DEFINED CMAKE_ARCHIVE_OUTPUT_DIRECTORY)
-  SET(ASSIMP_ARCHIVE_OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/lib" CACHE STRING "Path for library output files")
-ELSE()
-  SET(ASSIMP_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_ARCHIVE_OUTPUT_DIRECTORY} CACHE STRING "Path for runtime output files")
-ENDIF()
+SET(ASSIMP_RUNTIME_OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/bin" CACHE STRING "Path for runtime output files")
+SET(ASSIMP_LIBRARY_OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/bin" CACHE STRING "Path for library output files")
+SET(ASSIMP_ARCHIVE_OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/lib" CACHE STRING "Path for archive output files")
 
 # Macro used to set the output directories of a target to the
 # respective Assimp output directories.
@@ -398,6 +368,13 @@ IF (NOT TARGET uninstall AND ASSIMP_INSTALL)
   ADD_CUSTOM_TARGET(uninstall "${CMAKE_COMMAND}" -P "${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake")
 ENDIF()
 
+# cmake configuration files
+if(${BUILD_SHARED_LIBS})
+  set(BUILD_LIB_TYPE SHARED)
+else()
+  set(BUILD_LIB_TYPE STATIC)
+endif()
+
 IF( UNIX )
   # Use GNUInstallDirs for Unix predefined directories
   INCLUDE(GNUInstallDirs)
@@ -490,11 +467,7 @@ ELSE()
     FIND_PACKAGE(ZLIB)
   ENDIF()
 
-  IF ( NOT ZLIB_FOUND AND NOT ASSIMP_BUILD_ZLIB )
-    message( FATAL_ERROR
-      "Build configured with -DASSIMP_BUILD_ZLIB=OFF but unable to find zlib"
-    )
-  ELSEIF( NOT ZLIB_FOUND )
+  IF( NOT ZLIB_FOUND )
     MESSAGE(STATUS "compiling zlib from sources")
     INCLUDE(CheckIncludeFile)
     INCLUDE(CheckTypeSize)
@@ -567,11 +540,7 @@ IF (ASSIMP_BUILD_NONFREE_C4D_IMPORTER)
     SET(C4D_INCLUDES "${CMAKE_CURRENT_SOURCE_DIR}/contrib/Cineware/includes")
 
     # pick the correct prebuilt library
-    IF(MSVC143)
-      SET(C4D_LIB_POSTFIX "_2022")
-    ELSEIF(MSV142)
-      SET(C4D_LIB_POSTFIX "_2019")
-    ELSEIF(MSVC15)
+    IF(MSVC15)
       SET(C4D_LIB_POSTFIX "_2017")
     ELSEIF(MSVC14)
       SET(C4D_LIB_POSTFIX "_2015")
@@ -583,7 +552,7 @@ 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 is currently only supported with MSVC 10, 11, 12, 14"
       )
     ENDIF()
 
@@ -668,13 +637,13 @@ ELSE()
       set_target_properties(draco_encoder draco_decoder PROPERTIES
         EXCLUDE_FROM_ALL TRUE
         EXCLUDE_FROM_DEFAULT_BUILD TRUE
-      )
+        )
 
       # Do build the draco shared library
       set_target_properties(${draco_LIBRARIES} PROPERTIES
         EXCLUDE_FROM_ALL FALSE
         EXCLUDE_FROM_DEFAULT_BUILD FALSE
-      )
+        )
 
       TARGET_USE_COMMON_OUTPUT_DIRECTORY(${draco_LIBRARIES})
       TARGET_USE_COMMON_OUTPUT_DIRECTORY(draco_encoder)
@@ -691,24 +660,21 @@ ELSE()
         FRAMEWORK DESTINATION ${ASSIMP_LIB_INSTALL_DIR}
         COMPONENT ${LIBASSIMP_COMPONENT}
         INCLUDES DESTINATION include
-      )
+    )
+
     ENDIF()
   ENDIF()
 ENDIF()
 
 # Main assimp code
 ADD_SUBDIRECTORY( code/ )
-
 IF ( ASSIMP_BUILD_ASSIMP_TOOLS )
   # The viewer for windows only
-  IF (WIN32)
-    FIND_PACKAGE(DirectX)
-    OPTION ( ASSIMP_BUILD_ASSIMP_VIEW "If the Assimp view tool is built. (requires DirectX)" ${DirectX_FOUND} )
+  IF ( WIN32 )
+    OPTION ( ASSIMP_BUILD_ASSIMP_VIEW "If the Assimp view tool is built. (requires DirectX)" OFF )
     IF ( ASSIMP_BUILD_ASSIMP_VIEW )
       ADD_SUBDIRECTORY( tools/assimp_view/ )
     ENDIF ()
-  ELSE()
-    MESSAGE("Building Assimp Viewer only supported on Windows.")
   ENDIF ()
   # The command line tool
   ADD_SUBDIRECTORY( tools/assimp_cmd/ )
@@ -728,22 +694,12 @@ IF ( ASSIMP_BUILD_TESTS )
   ADD_SUBDIRECTORY( test/ )
 ENDIF ()
 
-# Generate a pkg-config .pc, revision.h, and config.h for the Assimp library.
+# Generate a pkg-config .pc for the Assimp library.
 CONFIGURE_FILE( "${PROJECT_SOURCE_DIR}/assimp.pc.in" "${PROJECT_BINARY_DIR}/assimp.pc" @ONLY )
 IF ( ASSIMP_INSTALL )
   INSTALL( FILES "${PROJECT_BINARY_DIR}/assimp.pc" DESTINATION ${ASSIMP_LIB_INSTALL_DIR}/pkgconfig/ COMPONENT ${LIBASSIMP-DEV_COMPONENT})
 ENDIF()
 
-CONFIGURE_FILE(
-  ${CMAKE_CURRENT_LIST_DIR}/revision.h.in
-  ${CMAKE_CURRENT_BINARY_DIR}/revision.h
-)
-
-CONFIGURE_FILE(
-  ${CMAKE_CURRENT_LIST_DIR}/include/assimp/config.h.in
-  ${CMAKE_CURRENT_BINARY_DIR}/include/assimp/config.h
-)
-
 IF ( ASSIMP_INSTALL )
   IF(CMAKE_CPACK_COMMAND AND UNIX AND ASSIMP_OPT_BUILD_PACKAGES)
     # Packing information
@@ -806,7 +762,7 @@ if(WIN32)
 
   IF(MSVC_TOOLSET_VERSION)
     SET(MSVC_PREFIX "vc${MSVC_TOOLSET_VERSION}")
-    SET(ASSIMP_MSVC_VERSION ${MSVC_PREFIX})
+    SET(ASSIMP_MSVC_VERSION ${MCVS_PREFIX})
   ELSE()
     IF(MSVC12)
       SET(ASSIMP_MSVC_VERSION "vc120")
@@ -814,10 +770,6 @@ if(WIN32)
       SET(ASSIMP_MSVC_VERSION "vc140")
     ELSEIF(MSVC15)
       SET(ASSIMP_MSVC_VERSION "vc141")
-    ELSEIF(MSV142)
-      SET(ASSIMP_MSVC_VERSION "vc142")
-    ELSEIF(MSVC143)
-      SET(ASSIMP_MSVC_VERSION "vc143")
     ENDIF()
   ENDIF()
 

CODE_OF_CONDUCT.md

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

Dockerfile

@@ -1,9 +1,14 @@
-FROM ubuntu:22.04
+FROM ubuntu:14.04
 
-RUN apt-get update && apt-get install -y ninja-build \
+RUN apt-get update && apt-get install -y \
     git cmake build-essential software-properties-common
 
-RUN add-apt-repository ppa:ubuntu-toolchain-r/test && apt-get update 
+RUN add-apt-repository ppa:ubuntu-toolchain-r/test && apt-get update && apt-get install -y gcc-4.9 g++-4.9 && \
+    cd /usr/bin && \
+    rm gcc g++ cpp && \
+    ln -s gcc-4.9 gcc && \
+    ln -s g++-4.9 g++ && \
+    ln -s cpp-4.9 cpp
 
 WORKDIR /opt
 
@@ -14,8 +19,7 @@ WORKDIR /opt/assimp
 
 RUN git checkout master \
     && mkdir build && cd build && \
-    cmake -G 'Ninja' \
+    cmake \
     -DCMAKE_BUILD_TYPE=Release \
-    -DASSIMP_BUILD_ASSIMP_TOOLS=ON \
     .. && \
-    ninja -j4 && ninja install
+    make && make install

INSTALL

@@ -14,4 +14,4 @@ https://assimp-docs.readthedocs.io/en/latest/
 Building Assimp 
 ------------------------------
 
-Just check the build-instructions which you can find here: https://github.com/assimp/assimp/blob/master/Build.md
+Just check the build-instaructions which you can find here: https://github.com/assimp/assimp/blob/master/Build.md

README

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

Readme.md

@@ -1,8 +1,6 @@
 Open Asset Import Library (assimp)
 ==================================
-
-Open Asset Import Library is a library to load various 3d file formats into a shared, in-memory format. It supports more than __40 file formats__ for import and a growing selection of file formats for export.
-
+A library to import and export various 3d-model-formats including scene-post-processing to generate missing render data.
 ### Current project status ###
 [![Financial Contributors on Open Collective](https://opencollective.com/assimp/all/badge.svg?label=financial+contributors)](https://opencollective.com/assimp) 
 ![C/C++ CI](https://github.com/assimp/assimp/workflows/C/C++%20CI/badge.svg)
@@ -11,11 +9,10 @@ Open Asset Import Library is a library to load various 3d file formats into a sh
        src="https://scan.coverity.com/projects/5607/badge.svg"/>
 </a>
 [![Codacy Badge](https://app.codacy.com/project/badge/Grade/9973693b7bdd4543b07084d5d9cf4745)](https://www.codacy.com/gh/assimp/assimp/dashboard?utm_source=github.com&amp;utm_medium=referral&amp;utm_content=assimp/assimp&amp;utm_campaign=Badge_Grade)
-
 [![Coverage Status](https://coveralls.io/repos/github/assimp/assimp/badge.svg?branch=master)](https://coveralls.io/github/assimp/assimp?branch=master)
 [![Join the chat at https://gitter.im/assimp/assimp](https://badges.gitter.im/assimp/assimp.svg)](https://gitter.im/assimp/assimp?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
 [![Average time to resolve an issue](http://isitmaintained.com/badge/resolution/assimp/assimp.svg)](http://isitmaintained.com/project/assimp/assimp "Average time to resolve an issue")
-[![Percentage of issues still open](http://isitmaintained.com/badge/open/assimp/assimp.svg)](http://isitmaintained.com/project/assimp/assimp "Percentage of issues still open")
+[![Total alerts](https://img.shields.io/lgtm/alerts/g/assimp/assimp.svg?logo=lgtm&logoWidth=18)](https://lgtm.com/projects/g/assimp/assimp/alerts/)
 <br>
 
 APIs are provided for C and C++. There are various bindings to other languages (C#, Java, Python, Delphi, D). Assimp also runs on Android and iOS.
@@ -24,19 +21,15 @@ Additionally, assimp features various __mesh post processing tools__: normals an
 ### Latest Doc's ###
 Please check the latest documents at [Asset-Importer-Lib-Doc](https://assimp-docs.readthedocs.io/en/latest/). 
 
-### Prebuild binaries ###
-Please check our [Itchi Projectspace](https://kimkulling.itch.io/the-asset-importer-lib)
+### Get involved ###
+This is the development repo containing the latest features and bugfixes. For productive use though, we recommend one of the stable releases available from [Github Assimp Releases](https://github.com/assimp/assimp/releases).
+<br>
+You find a bug in the docs? Use [Doc-Repo](https://github.com/assimp/assimp-docs).
+<br>
+Please check our Wiki as well: https://github.com/assimp/assimp/wiki
 
 If you want to check our Model-Database, use the following repo: https://github.com/assimp/assimp-mdb
 
-### Communities ###
-- Ask a question at [The Assimp-Discussion Board](https://github.com/assimp/assimp/discussions)
-- Ask on [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)
 
@@ -65,24 +58,30 @@ Open Asset Import Library is implemented in C++. The directory structure looks l
 	/code		Source code
 	/contrib	Third-party libraries
 	/doc		Documentation (doxysource and pre-compiled docs)
-	/fuzz           Contains the test-code for the Google-Fuzzer project
 	/include	Public header C and C++ header files
 	/scripts 	Scripts used to generate the loading code for some formats
 	/port		Ports to other languages and scripts to maintain those.
 	/test		Unit- and regression tests, test suite of models
 	/tools		Tools (old assimp viewer, command line `assimp`)
-	/samples	A small number of samples to illustrate possible use-cases for Assimp
+	/samples	A small number of samples to illustrate possible
+                        use cases for Assimp
 
 The source code is organized in the following way:
 
 	code/Common			The base implementation for importers and the infrastructure
-	code/CApi                       Special implementations which are only used for the C-API
-	code/Geometry                   A collection of geometry tools
-	code/Material                   The material system
-	code/PBR                        An exporter for physical based models
 	code/PostProcessing		The post-processing steps
 	code/AssetLib/<FormatName>	Implementation for import and export for the format
 
+### Where to get help ###
+For more information, visit [our website](http://assimp.org/). Or check out the `./doc`- folder, which contains the official documentation in HTML format.
+(CHMs for Windows are included in some release packages and should be located right here in the root folder).
+
+If the docs don't solve your problem, ask on [StackOverflow with the assimp-tag](http://stackoverflow.com/questions/tagged/assimp?sort=newest). If you think you found a bug, please open an issue on Github.
+
+Open Asset Import Library is a library to load various 3d file formats into a shared, in-memory format. It supports more than __40 file formats__ for import and a growing selection of file formats for export.
+
+And we also have a Gitter-channel:Gitter [![Join the chat at https://gitter.im/assimp/assimp](https://badges.gitter.im/assimp/assimp.svg)](https://gitter.im/assimp/assimp?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)<br>
+
 ### Contributing ###
 Contributions to assimp are highly appreciated. The easiest way to get involved is to submit
 a pull request with your changes against the main repository's `master` branch.

SECURITY.md

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

cmake-modules/FindDirectX.cmake

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

cmake-modules/FindPkgMacros.cmake

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

code/AssetLib/3DS/3DSConverter.cpp

@@ -3,7 +3,7 @@
 Open Asset Import Library (assimp)
 ---------------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2021, assimp team
 
 All rights reserved.
 
@@ -262,7 +262,6 @@ void Discreet3DSImporter::ConvertMaterial(D3DS::Material &oldMat,
         unsigned int iWire = 1;
         mat.AddProperty<int>((int *)&iWire, 1, AI_MATKEY_ENABLE_WIREFRAME);
     }
-    [[fallthrough]];
 
     case D3DS::Discreet3DS::Gouraud:
         eShading = aiShadingMode_Gouraud;

code/AssetLib/3DS/3DSExporter.cpp

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2021, assimp team
 
 
 All rights reserved.
@@ -209,7 +209,9 @@ Discreet3DSExporter::Discreet3DSExporter(std::shared_ptr<IOStream> &outfile, con
 }
 
 // ------------------------------------------------------------------------------------------------
-Discreet3DSExporter::~Discreet3DSExporter() = default;
+Discreet3DSExporter::~Discreet3DSExporter() {
+    // empty
+}
 
 // ------------------------------------------------------------------------------------------------
 int Discreet3DSExporter::WriteHierarchy(const aiNode &node, int seq, int sibling_level) {

code/AssetLib/3DS/3DSExporter.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2021, 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) 2006-2021, assimp team
 
 
 All rights reserved.
@@ -322,6 +322,7 @@ struct Texture {
     //! Default constructor
     Texture() AI_NO_EXCEPT
             : mTextureBlend(0.0f),
+              mMapName(),
               mOffsetU(0.0),
               mOffsetV(0.0),
               mScaleU(1.0),
@@ -333,11 +334,51 @@ struct Texture {
         mTextureBlend = get_qnan();
     }
 
-    Texture(const Texture &other) = default;
+    Texture(const Texture &other) :
+            mTextureBlend(other.mTextureBlend),
+            mMapName(other.mMapName),
+            mOffsetU(other.mOffsetU),
+            mOffsetV(other.mOffsetV),
+            mScaleU(other.mScaleU),
+            mScaleV(other.mScaleV),
+            mRotation(other.mRotation),
+            mMapMode(other.mMapMode),
+            bPrivate(other.bPrivate),
+            iUVSrc(other.iUVSrc) {
+        // empty
+    }
 
-    Texture(Texture &&other) AI_NO_EXCEPT = default;
+    Texture(Texture &&other) AI_NO_EXCEPT : mTextureBlend(other.mTextureBlend),
+                                            mMapName(std::move(other.mMapName)),
+                                            mOffsetU(other.mOffsetU),
+                                            mOffsetV(other.mOffsetV),
+                                            mScaleU(other.mScaleU),
+                                            mScaleV(other.mScaleV),
+                                            mRotation(other.mRotation),
+                                            mMapMode(other.mMapMode),
+                                            bPrivate(other.bPrivate),
+                                            iUVSrc(other.iUVSrc) {
+        // empty
+    }
 
-    Texture &operator=(Texture &&other) AI_NO_EXCEPT = default;
+    Texture &operator=(Texture &&other) AI_NO_EXCEPT {
+        if (this == &other) {
+            return *this;
+        }
+
+        mTextureBlend = other.mTextureBlend;
+        mMapName = std::move(other.mMapName);
+        mOffsetU = other.mOffsetU;
+        mOffsetV = other.mOffsetV;
+        mScaleU = other.mScaleU;
+        mScaleV = other.mScaleV;
+        mRotation = other.mRotation;
+        mMapMode = other.mMapMode;
+        bPrivate = other.bPrivate;
+        iUVSrc = other.iUVSrc;
+
+        return *this;
+    }
 
     //! Specifies the blend factor for the texture
     ai_real mTextureBlend;
@@ -395,9 +436,83 @@ struct Material {
         // empty
     }
 
-    Material(const Material &other) = default;
+    Material(const Material &other) :
+            mName(other.mName),
+            mDiffuse(other.mDiffuse),
+            mSpecularExponent(other.mSpecularExponent),
+            mShininessStrength(other.mShininessStrength),
+            mSpecular(other.mSpecular),
+            mAmbient(other.mAmbient),
+            mShading(other.mShading),
+            mTransparency(other.mTransparency),
+            sTexDiffuse(other.sTexDiffuse),
+            sTexOpacity(other.sTexOpacity),
+            sTexSpecular(other.sTexSpecular),
+            sTexReflective(other.sTexReflective),
+            sTexBump(other.sTexBump),
+            sTexEmissive(other.sTexEmissive),
+            sTexShininess(other.sTexShininess),
+            mBumpHeight(other.mBumpHeight),
+            mEmissive(other.mEmissive),
+            sTexAmbient(other.sTexAmbient),
+            mTwoSided(other.mTwoSided) {
+        // empty
+    }
 
-    virtual ~Material() = default;
+    //! Move constructor. This is explicitly written because MSVC doesn't support defaulting it
+    Material(Material &&other) AI_NO_EXCEPT : mName(std::move(other.mName)),
+                                              mDiffuse(other.mDiffuse),
+                                              mSpecularExponent(other.mSpecularExponent),
+                                              mShininessStrength(other.mShininessStrength),
+                                              mSpecular(other.mSpecular),
+                                              mAmbient(other.mAmbient),
+                                              mShading(other.mShading),
+                                              mTransparency(other.mTransparency),
+                                              sTexDiffuse(std::move(other.sTexDiffuse)),
+                                              sTexOpacity(std::move(other.sTexOpacity)),
+                                              sTexSpecular(std::move(other.sTexSpecular)),
+                                              sTexReflective(std::move(other.sTexReflective)),
+                                              sTexBump(std::move(other.sTexBump)),
+                                              sTexEmissive(std::move(other.sTexEmissive)),
+                                              sTexShininess(std::move(other.sTexShininess)),
+                                              mBumpHeight(other.mBumpHeight),
+                                              mEmissive(other.mEmissive),
+                                              sTexAmbient(std::move(other.sTexAmbient)),
+                                              mTwoSided(other.mTwoSided) {
+        // empty
+    }
+
+    Material &operator=(Material &&other) AI_NO_EXCEPT {
+        if (this == &other) {
+            return *this;
+        }
+
+        mName = std::move(other.mName);
+        mDiffuse = other.mDiffuse;
+        mSpecularExponent = other.mSpecularExponent;
+        mShininessStrength = other.mShininessStrength,
+        mSpecular = other.mSpecular;
+        mAmbient = other.mAmbient;
+        mShading = other.mShading;
+        mTransparency = other.mTransparency;
+        sTexDiffuse = std::move(other.sTexDiffuse);
+        sTexOpacity = std::move(other.sTexOpacity);
+        sTexSpecular = std::move(other.sTexSpecular);
+        sTexReflective = std::move(other.sTexReflective);
+        sTexBump = std::move(other.sTexBump);
+        sTexEmissive = std::move(other.sTexEmissive);
+        sTexShininess = std::move(other.sTexShininess);
+        mBumpHeight = other.mBumpHeight;
+        mEmissive = other.mEmissive;
+        sTexAmbient = std::move(other.sTexAmbient);
+        mTwoSided = other.mTwoSided;
+
+        return *this;
+    }
+
+    virtual ~Material() {
+        // empty
+    }
 
     //! Name of the material
     std::string mName;

code/AssetLib/3DS/3DSLoader.cpp

@@ -3,7 +3,7 @@
 Open Asset Import Library (assimp)
 ---------------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2021, assimp team
 
 All rights reserved.
 
@@ -105,13 +105,26 @@ Discreet3DSImporter::Discreet3DSImporter() :
 
 // ------------------------------------------------------------------------------------------------
 // Destructor, private as well
-Discreet3DSImporter::~Discreet3DSImporter() = default;
+Discreet3DSImporter::~Discreet3DSImporter() {
+    // empty
+}
 
 // ------------------------------------------------------------------------------------------------
 // Returns whether the class can handle the format of the given file.
-bool Discreet3DSImporter::CanRead(const std::string &pFile, IOSystem *pIOHandler, bool /*checkSig*/) const {
-    static const uint16_t token[] = { 0x4d4d, 0x3dc2 /*, 0x3daa */ };
-    return CheckMagicToken(pIOHandler, pFile, token, AI_COUNT_OF(token), 0, sizeof token[0]);
+bool Discreet3DSImporter::CanRead(const std::string &pFile, IOSystem *pIOHandler, bool checkSig) const {
+    std::string extension = GetExtension(pFile);
+    if (extension == "3ds" || extension == "prj") {
+        return true;
+    }
+
+    if (!extension.length() || checkSig) {
+        uint16_t token[3];
+        token[0] = 0x4d4d;
+        token[1] = 0x3dc2;
+        //token[2] = 0x3daa;
+        return CheckMagicToken(pIOHandler, pFile, token, 2, 0, 2);
+    }
+    return false;
 }
 
 // ------------------------------------------------------------------------------------------------
@@ -266,15 +279,8 @@ void Discreet3DSImporter::ParseMainChunk() {
     };
 
     ASSIMP_3DS_END_CHUNK();
-#if defined(__clang__)
-#pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Wunreachable-code-return"
-#endif
     // recursively continue processing this hierarchy level
     return ParseMainChunk();
-#if defined(__clang__)
-#pragma clang diagnostic pop
-#endif
 }
 
 // ------------------------------------------------------------------------------------------------
@@ -324,7 +330,7 @@ void Discreet3DSImporter::ParseObjectChunk() {
     case Discreet3DS::CHUNK_MAT_MATERIAL:
 
         // Add a new material to the list
-        mScene->mMaterials.emplace_back(std::string("UNNAMED_" + ai_to_string(mScene->mMaterials.size())));
+        mScene->mMaterials.push_back(D3DS::Material(std::string("UNNAMED_" + ai_to_string(mScene->mMaterials.size()))));
         ParseMaterialChunk();
         break;
 
@@ -375,7 +381,7 @@ void Discreet3DSImporter::ParseChunk(const char *name, unsigned int num) {
     switch (chunk.Flag) {
     case Discreet3DS::CHUNK_TRIMESH: {
         // this starts a new triangle mesh
-        mScene->mMeshes.emplace_back(std::string(name, num));
+        mScene->mMeshes.push_back(D3DS::Mesh(std::string(name, num)));
 
         // Read mesh chunks
         ParseMeshChunk();
@@ -1004,7 +1010,7 @@ void Discreet3DSImporter::ParseMeshChunk() {
         mMesh.mFaces.reserve(num);
         while (num-- > 0) {
             // 3DS faces are ALWAYS triangles
-            mMesh.mFaces.emplace_back();
+            mMesh.mFaces.push_back(D3DS::Face());
             D3DS::Face &sFace = mMesh.mFaces.back();
 
             sFace.mIndices[0] = (uint16_t)stream->GetI2();
@@ -1289,7 +1295,7 @@ void Discreet3DSImporter::ParseColorChunk(aiColor3D *out, bool acceptPercent) {
     switch (chunk.Flag) {
     case Discreet3DS::CHUNK_LINRGBF:
         bGamma = true;
-    // fallthrough
+
     case Discreet3DS::CHUNK_RGBF:
         if (sizeof(float) * 3 > diff) {
             *out = clrError;
@@ -1302,7 +1308,6 @@ void Discreet3DSImporter::ParseColorChunk(aiColor3D *out, bool acceptPercent) {
 
     case Discreet3DS::CHUNK_LINRGBB:
         bGamma = true;
-            // fallthrough
     case Discreet3DS::CHUNK_RGBB: {
         if (sizeof(char) * 3 > diff) {
             *out = clrError;

code/AssetLib/3DS/3DSLoader.h

@@ -3,7 +3,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2021, assimp team
 
 
 All rights reserved.
@@ -68,7 +68,7 @@ using namespace D3DS;
 class Discreet3DSImporter : public BaseImporter {
 public:
     Discreet3DSImporter();
-    ~Discreet3DSImporter() override;
+    ~Discreet3DSImporter();
 
     // -------------------------------------------------------------------
     /** Returns whether the class can handle the format of the given file.

code/AssetLib/3MF/3MFTypes.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2021, assimp team
 
 All rights reserved.
 
@@ -69,7 +69,9 @@ public:
         // empty
     }
 
-    virtual ~Resource() = default;
+    virtual ~Resource() {
+        // empty
+    }
 
     virtual ResourceType getType() const {
         return ResourceType::RT_Unknown;
@@ -93,7 +95,7 @@ public:
         // empty
     }
 
-    ~EmbeddedTexture() override = default;
+    ~EmbeddedTexture() = default;
 
     ResourceType getType() const override {
         return ResourceType::RT_EmbeddedTexture2D;
@@ -110,7 +112,7 @@ public:
         // empty
     }
 
-    ~Texture2DGroup() override = default;
+    ~Texture2DGroup() = default;
 
     ResourceType getType() const override {
         return ResourceType::RT_Texture2DGroup;
@@ -127,7 +129,7 @@ public:
         // empty
     }
 
-    ~BaseMaterials() override = default;
+    ~BaseMaterials() = default;
 
     ResourceType getType() const override {
         return ResourceType::RT_BaseMaterials;
@@ -152,7 +154,7 @@ public:
         // empty
     }
 
-    ~Object() override = default;
+    ~Object() = default;
 
     ResourceType getType() const override {
         return ResourceType::RT_Object;

code/AssetLib/3MF/3MFXmlTags.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2021, assimp team
 
 All rights reserved.
 
@@ -74,8 +74,6 @@ namespace XmlTag {
     const char* const pid = "pid";
     const char* const pindex = "pindex";
     const char* const p1 = "p1";
-    const char *const p2 = "p2";
-    const char *const p3 = "p3";
     const char* const name = "name";
     const char* const type = "type";
     const char* const build = "build";

code/AssetLib/3MF/D3MFExporter.cpp

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2021, assimp team
 
 All rights reserved.
 
@@ -83,7 +83,7 @@ void ExportScene3MF(const char *pFile, IOSystem *pIOSystem, const aiScene *pScen
 namespace D3MF {
 
 D3MFExporter::D3MFExporter(const char *pFile, const aiScene *pScene) :
-        mArchiveName(pFile), m_zipArchive(nullptr), mScene(pScene) {
+        mArchiveName(pFile), m_zipArchive(nullptr), mScene(pScene), mModelOutput(), mRelOutput(), mContentOutput(), mBuildItems(), mRelations() {
     // empty
 }
 

code/AssetLib/3MF/D3MFExporter.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2021, 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) 2006-2021, assimp team
 
 All rights reserved.
 
@@ -81,16 +81,33 @@ static const aiImporterDesc desc = {
     "3mf"
 };
 
-D3MFImporter::D3MFImporter() = default;
+D3MFImporter::D3MFImporter() :
+        BaseImporter() {
+    // empty
+}
 
-D3MFImporter::~D3MFImporter() = default;
+D3MFImporter::~D3MFImporter() {
+    // empty
+}
 
-bool D3MFImporter::CanRead(const std::string &filename, IOSystem *pIOHandler, bool /*checkSig*/) const {
-    if (!ZipArchiveIOSystem::isZipArchive(pIOHandler, filename)) {
-        return false;
+bool D3MFImporter::CanRead(const std::string &filename, IOSystem *pIOHandler, bool checkSig) const {
+    const std::string extension(GetExtension(filename));
+    if (extension == desc.mFileExtensions) {
+        return true;
+    } 
+
+    if (!extension.length() || checkSig) {
+        if (nullptr == pIOHandler) {
+            return false;
+        }
+        if (!ZipArchiveIOSystem::isZipArchive(pIOHandler, filename)) {
+            return false;
+        }
+        D3MFOpcPackage opcPackage(pIOHandler, filename);
+        return opcPackage.validate();
     }
-    D3MF::D3MFOpcPackage opcPackage(pIOHandler, filename);
-    return opcPackage.validate();
+
+    return false;
 }
 
 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) 2006-2021, 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) 2006-2021, assimp team
 
 All rights reserved.
 
@@ -160,7 +160,7 @@ D3MFOpcPackage::D3MFOpcPackage(IOSystem *pIOHandler, const std::string &rFile) :
                     // deal with zip-bug
                     rootFile = rootFile.substr(1);
                 }
-            }
+            } 
 
             ASSIMP_LOG_VERBOSE_DEBUG(rootFile);
 
@@ -186,9 +186,6 @@ D3MFOpcPackage::D3MFOpcPackage(IOSystem *pIOHandler, const std::string &rFile) :
 D3MFOpcPackage::~D3MFOpcPackage() {
     mZipArchive->Close(mRootStream);
     delete mZipArchive;
-    for (auto tex : mEmbeddedTextures) {
-        delete tex;
-    }
 }
 
 IOStream *D3MFOpcPackage::RootStream() const {

code/AssetLib/3MF/D3MFOpcPackage.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2021, 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) 2006-2021, assimp team
 
 All rights reserved.
 
@@ -44,8 +44,6 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "3MFTypes.h"
 #include <assimp/scene.h>
 
-#include <utility>
-
 namespace Assimp {
 namespace D3MF {
 
@@ -66,7 +64,7 @@ bool validateColorString(const char *color) {
     return true;
 }
 
-aiFace ReadTriangle(XmlNode &node, int &texId0, int &texId1, int &texId2) {
+aiFace ReadTriangle(XmlNode &node) {
     aiFace face;
 
     face.mNumIndices = 3;
@@ -75,11 +73,6 @@ 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;
-    XmlParser::getIntAttribute(node, XmlTag::p1, texId0);
-    XmlParser::getIntAttribute(node, XmlTag::p2, texId1);
-    XmlParser::getIntAttribute(node, XmlTag::p3, texId2);
-
     return face;
 }
 
@@ -113,7 +106,7 @@ bool getNodeAttribute(const XmlNode &node, const std::string &attribute, int &va
     return false;
 }
 
-aiMatrix4x4 parseTransformMatrix(const std::string& matrixStr) {
+aiMatrix4x4 parseTransformMatrix(std::string matrixStr) {
     // split the string
     std::vector<float> numbers;
     std::string currentNumber;
@@ -216,7 +209,7 @@ void XmlSerializer::ImportXml(aiScene *scene) {
     if (nullptr == scene) {
         return;
     }
-
+    
     scene->mRootNode = new aiNode(XmlTag::RootTag);
     XmlNode node = mXmlParser->getRootNode().child(XmlTag::model);
     if (node.empty()) {
@@ -419,9 +412,6 @@ void XmlSerializer::ImportTriangles(XmlNode &node, aiMesh *mesh) {
             bool hasPid = getNodeAttribute(currentNode, D3MF::XmlTag::pid, pid);
             bool hasP1 = getNodeAttribute(currentNode, D3MF::XmlTag::p1, p1);
 
-            int texId[3];
-            Texture2DGroup *group = nullptr;
-            aiFace face = ReadTriangle(currentNode, texId[0], texId[1], texId[2]);
             if (hasPid && hasP1) {
                 auto it = mResourcesDictionnary.find(pid);
                 if (it != mResourcesDictionnary.end()) {
@@ -430,34 +420,23 @@ void XmlSerializer::ImportTriangles(XmlNode &node, aiMesh *mesh) {
                         mesh->mMaterialIndex = baseMaterials->mMaterialIndex[p1];
                     } else if (it->second->getType() == ResourceType::RT_Texture2DGroup) {
                         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);
+                            Texture2DGroup *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()) {
                                     mesh->mMaterialIndex = static_cast<unsigned int>(i);
                                 }
                             }
-                            mesh->mTextureCoords[0] = new aiVector3D[mesh->mNumVertices];
+                            mesh->mTextureCoords[0] = new aiVector3D[group->mTex2dCoords.size()];
+                            for (unsigned int i = 0; i < group->mTex2dCoords.size(); ++i) {
+                                mesh->mTextureCoords[0][i] = aiVector3D(group->mTex2dCoords[i].x, group->mTex2dCoords[i].y, 0);
+                            }
                         }
-                    }
+                    } 
                 }
             }
 
-            // Load texture coordinates into mesh, when any
-            if (group != nullptr) {
-                size_t i0 = face.mIndices[0];
-                size_t i1 = face.mIndices[1];
-                size_t i2 = face.mIndices[2];
-                mesh->mTextureCoords[0][i0] = aiVector3D(group->mTex2dCoords[texId[0]].x, group->mTex2dCoords[texId[0]].y, 0.0f);
-                mesh->mTextureCoords[0][i1] = aiVector3D(group->mTex2dCoords[texId[1]].x, group->mTex2dCoords[texId[1]].y, 0.0f);
-                mesh->mTextureCoords[0][i2] = aiVector3D(group->mTex2dCoords[texId[2]].x, group->mTex2dCoords[texId[2]].y, 0.0f);
-            }
-
+            aiFace face = ReadTriangle(currentNode);
             faces.push_back(face);
         }
     }
@@ -584,7 +563,7 @@ aiMaterial *XmlSerializer::readMaterialDef(XmlNode &node, unsigned int basemater
     stdMaterialName += strId;
     stdMaterialName += "_";
     if (hasName) {
-        stdMaterialName += name;
+        stdMaterialName += std::string(name);
     } else {
         stdMaterialName += "basemat_";
         stdMaterialName += ai_to_string(mMaterials.size());
@@ -599,15 +578,11 @@ aiMaterial *XmlSerializer::readMaterialDef(XmlNode &node, unsigned int basemater
 }
 
 void XmlSerializer::StoreMaterialsInScene(aiScene *scene) {
-    if (nullptr == scene) {
+    if (nullptr == scene || mMaterials.empty()) {
         return;
     }
 
     scene->mNumMaterials = static_cast<unsigned int>(mMaterials.size());
-    if (scene->mNumMaterials == 0) {
-        return;
-    }
-
     scene->mMaterials = new aiMaterial *[scene->mNumMaterials];
     for (size_t i = 0; i < mMaterials.size(); ++i) {
         scene->mMaterials[i] = mMaterials[i];

code/AssetLib/3MF/XmlSerializer.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2021, assimp team
 
 All rights reserved.
 

code/AssetLib/AC/ACLoader.cpp

@@ -3,7 +3,7 @@
 Open Asset Import Library (assimp)
 ---------------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2021, assimp team
 
 All rights reserved.
 
@@ -146,13 +146,24 @@ AC3DImporter::AC3DImporter() :
 
 // ------------------------------------------------------------------------------------------------
 // Destructor, private as well
-AC3DImporter::~AC3DImporter() = default;
+AC3DImporter::~AC3DImporter() {
+    // nothing to be done here
+}
 
 // ------------------------------------------------------------------------------------------------
 // Returns whether the class can handle the format of the given file.
-bool AC3DImporter::CanRead(const std::string &pFile, IOSystem *pIOHandler, bool /*checkSig*/) const {
-    static const uint32_t tokens[] = { AI_MAKE_MAGIC("AC3D") };
-    return CheckMagicToken(pIOHandler, pFile, tokens, AI_COUNT_OF(tokens));
+bool AC3DImporter::CanRead(const std::string &pFile, IOSystem *pIOHandler, bool checkSig) const {
+    std::string extension = GetExtension(pFile);
+
+    // fixme: are acc and ac3d *really* used? Some sources say they are
+    if (extension == "ac" || extension == "ac3d" || extension == "acc") {
+        return true;
+    }
+    if (!extension.length() || checkSig) {
+        uint32_t token = AI_MAKE_MAGIC("AC3D");
+        return CheckMagicToken(pIOHandler, pFile, &token, 1, 0);
+    }
+    return false;
 }
 
 // ------------------------------------------------------------------------------------------------
@@ -178,7 +189,7 @@ void AC3DImporter::LoadObjectSection(std::vector<Object> &objects) {
 
     ++mNumMeshes;
 
-    objects.emplace_back();
+    objects.push_back(Object());
     Object &obj = objects.back();
 
     aiLight *light = nullptr;
@@ -227,9 +238,7 @@ void AC3DImporter::LoadObjectSection(std::vector<Object> &objects) {
             }
         } else if (TokenMatch(buffer, "texture", 7)) {
             SkipSpaces(&buffer);
-            std::string texture;
-            buffer = AcGetString(buffer, texture);
-            obj.textures.push_back(texture);
+            buffer = AcGetString(buffer, obj.texture);
         } else if (TokenMatch(buffer, "texrep", 6)) {
             SkipSpaces(&buffer);
             buffer = TAcCheckedLoadFloatArray(buffer, "", 0, 2, &obj.texRepeat);
@@ -267,7 +276,7 @@ void AC3DImporter::LoadObjectSection(std::vector<Object> &objects) {
                     --buffer; // make sure the line is processed a second time
                     break;
                 }
-                obj.vertices.emplace_back();
+                obj.vertices.push_back(aiVector3D());
                 aiVector3D &v = obj.vertices.back();
                 buffer = TAcCheckedLoadFloatArray(buffer, "", 0, 3, &v.x);
             }
@@ -293,11 +302,11 @@ void AC3DImporter::LoadObjectSection(std::vector<Object> &objects) {
                     Q3DWorkAround = true;
                 }
                 SkipSpaces(&buffer);
-                obj.surfaces.emplace_back();
+                obj.surfaces.push_back(Surface());
                 Surface &surf = obj.surfaces.back();
                 surf.flags = strtoul_cppstyle(buffer);
 
-                while (true) {
+                while (1) {
                     if (!GetNextLine()) {
                         throw DeadlyImportError("AC3D: Unexpected EOF: surface is incomplete");
                     }
@@ -324,7 +333,7 @@ void AC3DImporter::LoadObjectSection(std::vector<Object> &objects) {
                                 ASSIMP_LOG_ERROR("AC3D: Unexpected EOF: surface references are incomplete");
                                 break;
                             }
-                            surf.entries.emplace_back();
+                            surf.entries.push_back(Surface::SurfaceEntry());
                             Surface::SurfaceEntry &entry = surf.entries.back();
 
                             entry.first = strtoul10(buffer, &buffer);
@@ -353,8 +362,8 @@ void AC3DImporter::ConvertMaterial(const Object &object,
         s.Set(matSrc.name);
         matDest.AddProperty(&s, AI_MATKEY_NAME);
     }
-    if (!object.textures.empty()) {
-        s.Set(object.textures[0]);
+    if (object.texture.length()) {
+        s.Set(object.texture);
         matDest.AddProperty(&s, AI_MATKEY_TEXTURE_DIFFUSE(0));
 
         // UV transformation
@@ -534,7 +543,7 @@ aiNode *AC3DImporter::ConvertObjectSection(Object &object,
                 // allocate UV coordinates, but only if the texture name for the
                 // surface is not empty
                 aiVector3D *uv = nullptr;
-                if (!object.textures.empty()) {
+                if (object.texture.length()) {
                     uv = mesh->mTextureCoords[0] = new aiVector3D[mesh->mNumVertices];
                     mesh->mNumUVComponents[0] = 2;
                 }
@@ -752,7 +761,7 @@ void AC3DImporter::InternReadFile(const std::string &pFile,
     std::unique_ptr<IOStream> file(pIOHandler->Open(pFile, "rb"));
 
     // Check whether we can read from the file
-    if (file == nullptr) {
+    if (file.get() == nullptr) {
         throw DeadlyImportError("Failed to open AC3D file ", pFile, ".");
     }
 
@@ -786,7 +795,7 @@ void AC3DImporter::InternReadFile(const std::string &pFile,
 
     while (GetNextLine()) {
         if (TokenMatch(buffer, "MATERIAL", 8)) {
-            materials.emplace_back();
+            materials.push_back(Material());
             Material &mat = materials.back();
 
             // manually parse the material ... sscanf would use the buldin atof ...
@@ -813,7 +822,7 @@ void AC3DImporter::InternReadFile(const std::string &pFile,
     }
     if (materials.empty()) {
         ASSIMP_LOG_WARN("AC3D: No material has been found");
-        materials.emplace_back();
+        materials.push_back(Material());
     }
 
     mNumMeshes += (mNumMeshes >> 2u) + 1;

code/AssetLib/AC/ACLoader.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2021, assimp team
 
 All rights reserved.
 
@@ -125,6 +125,7 @@ public:
                 type(World),
                 name(),
                 children(),
+                texture(),
                 texRepeat(1.f, 1.f),
                 texOffset(0.0f, 0.0f),
                 rotation(),
@@ -150,8 +151,7 @@ public:
         std::vector<Object> children;
 
         // texture to be assigned to all surfaces of the object
-        // the .acc format supports up to 4 textures
-        std::vector<std::string> textures;
+        std::string texture;
 
         // texture repat factors (scaling for all coordinates)
         aiVector2D texRepeat, texOffset;

code/AssetLib/AMF/AMFImporter.cpp

@@ -3,7 +3,7 @@
 Open Asset Import Library (assimp)
 ---------------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2021, assimp team
 
 All rights reserved.
 
@@ -83,7 +83,11 @@ void AMFImporter::Clear() {
 
 AMFImporter::AMFImporter() AI_NO_EXCEPT :
         mNodeElement_Cur(nullptr),
-        mXmlParser(nullptr) {
+        mXmlParser(nullptr),
+        mUnit(),
+        mVersion(),
+        mMaterial_Converted(),
+        mTexture_Converted() {
     // empty
 }
 
@@ -257,7 +261,7 @@ void AMFImporter::ParseFile(const std::string &pFile, IOSystem *pIOHandler) {
     std::unique_ptr<IOStream> file(pIOHandler->Open(pFile, "rb"));
 
     // Check whether we can read from the file
-    if (file == nullptr) {
+    if (file.get() == nullptr) {
         throw DeadlyImportError("Failed to open AMF file ", pFile, ".");
     }
 
@@ -499,9 +503,19 @@ void AMFImporter::ParseNode_Metadata(XmlNode &node) {
     mNodeElement_List.push_back(ne); // and to node element list because its a new object in graph.
 }
 
-bool AMFImporter::CanRead(const std::string &pFile, IOSystem *pIOHandler, bool /*pCheckSig*/) const {
-    static const char *tokens[] = { "<amf" };
-    return SearchFileHeaderForToken(pIOHandler, pFile, tokens, AI_COUNT_OF(tokens));
+bool AMFImporter::CanRead(const std::string &pFile, IOSystem *pIOHandler, bool pCheckSig) const {
+    const std::string extension = GetExtension(pFile);
+
+    if (extension == "amf") {
+        return true;
+    }
+
+    if (extension.empty() || pCheckSig) {
+        static const char * const tokens[] = { "<amf" };
+        return SearchFileHeaderForToken(pIOHandler, pFile, tokens, 1);
+    }
+
+    return false;
 }
 
 const aiImporterDesc *AMFImporter::GetInfo() const {

code/AssetLib/AMF/AMFImporter.hpp

@@ -3,7 +3,7 @@
 Open Asset Import Library (assimp)
 ---------------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2021, assimp team
 
 All rights reserved.
 
@@ -282,11 +282,11 @@ public:
     bool Find_NodeElement(const std::string &pID, const AMFNodeElementBase::EType pType, AMFNodeElementBase **pNodeElement) const;
     bool Find_ConvertedNode(const std::string &pID, NodeArray &nodeArray, aiNode **pNode) const;
     bool Find_ConvertedMaterial(const std::string &pID, const SPP_Material **pConvertedMaterial) const;
-    AI_WONT_RETURN void Throw_CloseNotFound(const std::string &nodeName) AI_WONT_RETURN_SUFFIX;
-    AI_WONT_RETURN void Throw_IncorrectAttr(const std::string &nodeName, const std::string &pAttrName) AI_WONT_RETURN_SUFFIX;
-    AI_WONT_RETURN void Throw_IncorrectAttrValue(const std::string &nodeName, const std::string &pAttrName) AI_WONT_RETURN_SUFFIX;
-    AI_WONT_RETURN void Throw_MoreThanOnceDefined(const std::string &nodeName, const std::string &pNodeType, const std::string &pDescription) AI_WONT_RETURN_SUFFIX;
-    AI_WONT_RETURN void Throw_ID_NotFound(const std::string &pID) const AI_WONT_RETURN_SUFFIX;
+    void Throw_CloseNotFound(const std::string &nodeName);
+    void Throw_IncorrectAttr(const std::string &nodeName, const std::string &pAttrName);
+    void Throw_IncorrectAttrValue(const std::string &nodeName, const std::string &pAttrName);
+    void Throw_MoreThanOnceDefined(const std::string &nodeName, const std::string &pNodeType, const std::string &pDescription);
+    void Throw_ID_NotFound(const std::string &pID) const;
     void XML_CheckNode_MustHaveChildren(pugi::xml_node &node);
     bool XML_SearchNode(const std::string &nodeName);
     void ParseHelper_FixTruncatedFloatString(const char *pInStr, std::string &pOutString);

code/AssetLib/AMF/AMFImporter_Geometry.cpp

@@ -3,7 +3,7 @@
 Open Asset Import Library (assimp)
 ---------------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2021, 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) 2006-2021, 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) 2006-2021, assimp team
 
 All rights reserved.
 
@@ -88,7 +88,9 @@ public:
 	std::list<AMFNodeElementBase *> Child; ///< Child elements.
 
 public: /// Destructor, virtual..
-	virtual ~AMFNodeElementBase() = default;
+	virtual ~AMFNodeElementBase() {
+		// empty
+	}
 
 	/// Disabled copy constructor and co.
 	AMFNodeElementBase(const AMFNodeElementBase &pNodeElement) = delete;
@@ -101,7 +103,7 @@ protected:
 	/// \param [in] pType - element type.
 	/// \param [in] pParent - parent element.
 	AMFNodeElementBase(const EType pType, AMFNodeElementBase *pParent) :
-			Type(pType), Parent(pParent) {
+			Type(pType), ID(), Parent(pParent), Child() {
 		// empty
 	}
 }; // class IAMFImporter_NodeElement
@@ -172,7 +174,7 @@ struct AMFColor : public AMFNodeElementBase {
 	/// @brief  Constructor.
 	/// @param [in] pParent - pointer to parent node.
 	AMFColor(AMFNodeElementBase *pParent) :
-			AMFNodeElementBase(ENET_Color, pParent), Composed(false), Color() {
+			AMFNodeElementBase(ENET_Color, pParent), Composed(false), Color(), Profile() {
 		// empty
 	}
 };
@@ -268,7 +270,7 @@ struct AMFTexMap : public AMFNodeElementBase {
 	/// Constructor.
 	/// \param [in] pParent - pointer to parent node.
 	AMFTexMap(AMFNodeElementBase *pParent) :
-			AMFNodeElementBase(ENET_TexMap, pParent), TextureCoordinate{} {
+			AMFNodeElementBase(ENET_TexMap, pParent), TextureCoordinate{}, TextureID_R(), TextureID_G(), TextureID_B(), TextureID_A() {
 		// empty
 	}
 };

code/AssetLib/AMF/AMFImporter_Postprocess.cpp

@@ -3,7 +3,7 @@
 Open Asset Import Library (assimp)
 ---------------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2021, assimp team
 
 All rights reserved.
 
@@ -815,7 +815,6 @@ nl_clean_loop:
             for (; next_it != nodeArray.end(); ++next_it) {
                 if ((*next_it)->FindNode((*nl_it)->mName) != nullptr) {
                     // if current top node(nl_it) found in another top node then erase it from node_list and restart search loop.
-                    // FIXME: this leaks memory on test models test8.amf and test9.amf
                     nodeArray.erase(nl_it);
 
                     goto nl_clean_loop;

code/AssetLib/ASE/ASELoader.cpp

@@ -3,7 +3,7 @@
 Open Asset Import Library (assimp)
 ---------------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2021, assimp team
 
 All rights reserved.
 
@@ -44,6 +44,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef ASSIMP_BUILD_NO_ASE_IMPORTER
+
 #ifndef ASSIMP_BUILD_NO_3DS_IMPORTER
 
 // internal headers
@@ -86,11 +87,27 @@ ASEImporter::ASEImporter() :
     // empty
 }
 
+// ------------------------------------------------------------------------------------------------
+// Destructor, private as well
+ASEImporter::~ASEImporter() {
+    // empty
+}
+
 // ------------------------------------------------------------------------------------------------
 // Returns whether the class can handle the format of the given file.
-bool ASEImporter::CanRead(const std::string &pFile, IOSystem *pIOHandler, bool /*checkSig*/) const {
-    static const char *tokens[] = { "*3dsmax_asciiexport" };
-    return SearchFileHeaderForToken(pIOHandler, pFile, tokens, AI_COUNT_OF(tokens));
+bool ASEImporter::CanRead(const std::string &pFile, IOSystem *pIOHandler, bool cs) const {
+    // check file extension
+    const std::string extension = GetExtension(pFile);
+
+    if (extension == "ase" || extension == "ask") {
+        return true;
+    }
+
+    if ((!extension.length() || cs) && pIOHandler) {
+        static const char * const tokens[] = { "*3dsmax_asciiexport" };
+        return SearchFileHeaderForToken(pIOHandler, pFile, tokens, 1);
+    }
+    return false;
 }
 
 // ------------------------------------------------------------------------------------------------
@@ -117,7 +134,7 @@ void ASEImporter::InternReadFile(const std::string &pFile,
     std::unique_ptr<IOStream> file(pIOHandler->Open(pFile, "rb"));
 
     // Check whether we can read from the file
-    if (file == nullptr) {
+    if (file.get() == nullptr) {
         throw DeadlyImportError("Failed to open ASE file ", pFile, ".");
     }
 
@@ -258,7 +275,7 @@ void ASEImporter::GenerateDefaultMaterial() {
     }
     if (bHas || mParser->m_vMaterials.empty()) {
         // add a simple material without submaterials to the parser's list
-        mParser->m_vMaterials.emplace_back(AI_DEFAULT_MATERIAL_NAME);
+        mParser->m_vMaterials.push_back(ASE::Material(AI_DEFAULT_MATERIAL_NAME));
         ASE::Material &mat = mParser->m_vMaterials.back();
 
         mat.mDiffuse = aiColor3D(0.6f, 0.6f, 0.6f);
@@ -321,6 +338,21 @@ void ASEImporter::BuildAnimations(const std::vector<BaseNode *> &nodes) {
                 aiNodeAnim *nd = pcAnim->mChannels[iNum++] = new aiNodeAnim();
                 nd->mNodeName.Set(me->mName + ".Target");
 
+                // If there is no input position channel we will need
+                // to supply the default position from the node's
+                // local transformation matrix.
+                /*TargetAnimationHelper helper;
+                if (me->mAnim.akeyPositions.empty())
+                {
+                    aiMatrix4x4& mat = (*i)->mTransform;
+                    helper.SetFixedMainAnimationChannel(aiVector3D(
+                        mat.a4, mat.b4, mat.c4));
+                }
+                else helper.SetMainAnimationChannel (&me->mAnim.akeyPositions);
+                helper.SetTargetAnimationChannel (&me->mTargetAnim.akeyPositions);
+
+                helper.Process(&me->mTargetAnim.akeyPositions);*/
+
                 // Allocate the key array and fill it
                 nd->mNumPositionKeys = (unsigned int)me->mTargetAnim.akeyPositions.size();
                 nd->mPositionKeys = new aiVectorKey[nd->mNumPositionKeys];
@@ -848,7 +880,6 @@ void ASEImporter::ConvertMaterial(ASE::Material &mat) {
         unsigned int iWire = 1;
         mat.pcInstance->AddProperty<int>((int *)&iWire, 1, AI_MATKEY_ENABLE_WIREFRAME);
     }
-    // fallthrough
     case D3DS::Discreet3DS::Gouraud:
         eShading = aiShadingMode_Gouraud;
         break;
@@ -983,8 +1014,8 @@ void ASEImporter::ConvertMeshes(ASE::Mesh &mesh, std::vector<aiMesh *> &avOutMes
                                             blubb != mesh.mBoneVertices[iIndex2].mBoneWeights.end(); ++blubb) {
 
                                         // NOTE: illegal cases have already been filtered out
-                                        avOutputBones[(*blubb).first].emplace_back(
-                                                iBase, (*blubb).second);
+                                        avOutputBones[(*blubb).first].push_back(std::pair<unsigned int, float>(
+                                                iBase, (*blubb).second));
                                     }
                                 }
                             }

code/AssetLib/ASE/ASELoader.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2021, assimp team
 
 All rights reserved.
 
@@ -62,7 +62,7 @@ namespace Assimp {
 class ASEImporter : public BaseImporter {
 public:
     ASEImporter();
-    ~ASEImporter() override = default;
+    ~ASEImporter() override;
 
     // -------------------------------------------------------------------
     /** Returns whether the class can handle the format of the given file.

code/AssetLib/ASE/ASEParser.cpp

@@ -3,7 +3,7 @@
 Open Asset Import Library (assimp)
 ---------------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2021, assimp team
 
 All rights reserved.
 
@@ -74,7 +74,7 @@ using namespace Assimp::ASE;
             return;                                \
         }                                          \
     }                                              \
-    if ('\0' == *filePtr) {                        \
+    else if ('\0' == *filePtr) {                   \
         return;                                    \
     }                                              \
     if (IsLineEnd(*filePtr) && !bLastWasEndLine) { \
@@ -112,7 +112,6 @@ using namespace Assimp::ASE;
 // ------------------------------------------------------------------------------------------------
 Parser::Parser(const char *szFile, unsigned int fileFormatDefault) {
     ai_assert(nullptr != szFile);
-
     filePtr = szFile;
     iFileFormat = fileFormatDefault;
 
@@ -264,7 +263,7 @@ void Parser::Parse() {
             if (TokenMatch(filePtr, "GEOMOBJECT", 10))
 
             {
-                m_vMeshes.emplace_back("UNNAMED");
+                m_vMeshes.push_back(Mesh("UNNAMED"));
                 ParseLV1ObjectBlock(m_vMeshes.back());
                 continue;
             }
@@ -272,7 +271,7 @@ void Parser::Parse() {
             if (TokenMatch(filePtr, "HELPEROBJECT", 12))
 
             {
-                m_vDummies.emplace_back();
+                m_vDummies.push_back(Dummy());
                 ParseLV1ObjectBlock(m_vDummies.back());
                 continue;
             }
@@ -280,13 +279,13 @@ void Parser::Parse() {
             if (TokenMatch(filePtr, "LIGHTOBJECT", 11))
 
             {
-                m_vLights.emplace_back("UNNAMED");
+                m_vLights.push_back(Light("UNNAMED"));
                 ParseLV1ObjectBlock(m_vLights.back());
                 continue;
             }
             // camera object
             if (TokenMatch(filePtr, "CAMERAOBJECT", 12)) {
-                m_vCameras.emplace_back("UNNAMED");
+                m_vCameras.push_back(Camera("UNNAMED"));
                 ParseLV1ObjectBlock(m_vCameras.back());
                 continue;
             }
@@ -304,6 +303,7 @@ void Parser::Parse() {
         }
         AI_ASE_HANDLE_TOP_LEVEL_SECTION();
     }
+    return;
 }
 
 // ------------------------------------------------------------------------------------------------
@@ -384,7 +384,7 @@ void Parser::ParseLV1SoftSkinBlock() {
                         unsigned int numWeights;
                         ParseLV4MeshLong(numWeights);
 
-                        curMesh->mBoneVertices.emplace_back();
+                        curMesh->mBoneVertices.push_back(ASE::BoneVertex());
                         ASE::BoneVertex &vert = curMesh->mBoneVertices.back();
 
                         // Reserve enough storage
@@ -408,7 +408,7 @@ void Parser::ParseLV1SoftSkinBlock() {
                             if (-1 == me.first) {
                                 // We don't have this bone yet, so add it to the list
                                 me.first = static_cast<int>(curMesh->mBones.size());
-                                curMesh->mBones.emplace_back(bone);
+                                curMesh->mBones.push_back(ASE::Bone(bone));
                             }
                             ParseLV4MeshFloat(me.second);
 
@@ -419,8 +419,6 @@ void Parser::ParseLV1SoftSkinBlock() {
                 }
             }
         }
-        if (*filePtr == '\0')
-            return;
         ++filePtr;
         SkipSpacesAndLineEnd(&filePtr);
     }
@@ -479,11 +477,6 @@ void Parser::ParseLV1MaterialListBlock() {
             if (TokenMatch(filePtr, "MATERIAL_COUNT", 14)) {
                 ParseLV4MeshLong(iMaterialCount);
 
-                if (UINT_MAX - iOldMaterialCount < iMaterialCount) {
-                    LogWarning("Out of range: material index is too large");
-                    return;
-                }
-
                 // now allocate enough storage to hold all materials
                 m_vMaterials.resize(iOldMaterialCount + iMaterialCount, Material("INVALID"));
                 continue;
@@ -495,7 +488,6 @@ void Parser::ParseLV1MaterialListBlock() {
                 if (iIndex >= iMaterialCount) {
                     LogWarning("Out of range: material index is too large");
                     iIndex = iMaterialCount - 1;
-                    return;
                 }
 
                 // get a reference to the material
@@ -652,13 +644,10 @@ void Parser::ParseLV2MaterialBlock(ASE::Material &mat) {
                 }
 
                 // get a reference to the material
-                if (iIndex < mat.avSubMaterials.size()) {
-                    Material &sMat = mat.avSubMaterials[iIndex];
-
-                    // parse the material block
-                    ParseLV2MaterialBlock(sMat);
-                }
+                Material &sMat = mat.avSubMaterials[iIndex];
 
+                // parse the material block
+                ParseLV2MaterialBlock(sMat);
                 continue;
             }
         }
@@ -738,6 +727,7 @@ void Parser::ParseLV3MapBlock(Texture &map) {
         }
         AI_ASE_HANDLE_SECTION("3", "*MAP_XXXXXX");
     }
+    return;
 }
 
 // ------------------------------------------------------------------------------------------------
@@ -862,6 +852,7 @@ void Parser::ParseLV1ObjectBlock(ASE::BaseNode &node) {
         }
         AI_ASE_HANDLE_TOP_LEVEL_SECTION();
     }
+    return;
 }
 
 // ------------------------------------------------------------------------------------------------
@@ -885,6 +876,7 @@ void Parser::ParseLV2CameraSettingsBlock(ASE::Camera &camera) {
         }
         AI_ASE_HANDLE_SECTION("2", "CAMERA_SETTINGS");
     }
+    return;
 }
 
 // ------------------------------------------------------------------------------------------------
@@ -912,6 +904,7 @@ void Parser::ParseLV2LightSettingsBlock(ASE::Light &light) {
         }
         AI_ASE_HANDLE_SECTION("2", "LIGHT_SETTINGS");
     }
+    return;
 }
 
 // ------------------------------------------------------------------------------------------------
@@ -1012,7 +1005,7 @@ void Parser::ParseLV3ScaleAnimationBlock(ASE::Animation &anim) {
                 anim.mScalingType = ASE::Animation::TCB;
             }
             if (b) {
-                anim.akeyScaling.emplace_back();
+                anim.akeyScaling.push_back(aiVectorKey());
                 aiVectorKey &key = anim.akeyScaling.back();
                 ParseLV4MeshFloatTriple(&key.mValue.x, iIndex);
                 key.mTime = (double)iIndex;
@@ -1051,7 +1044,7 @@ void Parser::ParseLV3PosAnimationBlock(ASE::Animation &anim) {
                 anim.mPositionType = ASE::Animation::TCB;
             }
             if (b) {
-                anim.akeyPositions.emplace_back();
+                anim.akeyPositions.push_back(aiVectorKey());
                 aiVectorKey &key = anim.akeyPositions.back();
                 ParseLV4MeshFloatTriple(&key.mValue.x, iIndex);
                 key.mTime = (double)iIndex;
@@ -1090,7 +1083,7 @@ void Parser::ParseLV3RotAnimationBlock(ASE::Animation &anim) {
                 anim.mRotationType = ASE::Animation::TCB;
             }
             if (b) {
-                anim.akeyRotations.emplace_back();
+                anim.akeyRotations.push_back(aiQuatKey());
                 aiQuatKey &key = anim.akeyRotations.back();
                 aiVector3D v;
                 ai_real f;
@@ -1190,6 +1183,7 @@ void Parser::ParseLV2NodeTransformBlock(ASE::BaseNode &mesh) {
         }
         AI_ASE_HANDLE_SECTION("2", "*NODE_TM");
     }
+    return;
 }
 // ------------------------------------------------------------------------------------------------
 void Parser::ParseLV2MeshBlock(ASE::Mesh &mesh) {
@@ -1310,6 +1304,7 @@ void Parser::ParseLV2MeshBlock(ASE::Mesh &mesh) {
         }
         AI_ASE_HANDLE_SECTION("2", "*MESH");
     }
+    return;
 }
 // ------------------------------------------------------------------------------------------------
 void Parser::ParseLV3MeshWeightsBlock(ASE::Mesh &mesh) {
@@ -1343,6 +1338,7 @@ void Parser::ParseLV3MeshWeightsBlock(ASE::Mesh &mesh) {
         }
         AI_ASE_HANDLE_SECTION("3", "*MESH_WEIGHTS");
     }
+    return;
 }
 // ------------------------------------------------------------------------------------------------
 void Parser::ParseLV4MeshBones(unsigned int iNumBones, ASE::Mesh &mesh) {
@@ -1412,6 +1408,7 @@ void Parser::ParseLV4MeshBonesVertices(unsigned int iNumVertices, ASE::Mesh &mes
         }
         AI_ASE_HANDLE_SECTION("4", "*MESH_BONE_VERTEX");
     }
+    return;
 }
 // ------------------------------------------------------------------------------------------------
 void Parser::ParseLV3MeshVertexListBlock(
@@ -1440,6 +1437,7 @@ void Parser::ParseLV3MeshVertexListBlock(
         }
         AI_ASE_HANDLE_SECTION("3", "*MESH_VERTEX_LIST");
     }
+    return;
 }
 // ------------------------------------------------------------------------------------------------
 void Parser::ParseLV3MeshFaceListBlock(unsigned int iNumFaces, ASE::Mesh &mesh) {
@@ -1466,6 +1464,7 @@ void Parser::ParseLV3MeshFaceListBlock(unsigned int iNumFaces, ASE::Mesh &mesh)
         }
         AI_ASE_HANDLE_SECTION("3", "*MESH_FACE_LIST");
     }
+    return;
 }
 // ------------------------------------------------------------------------------------------------
 void Parser::ParseLV3MeshTListBlock(unsigned int iNumVertices,
@@ -1498,6 +1497,7 @@ void Parser::ParseLV3MeshTListBlock(unsigned int iNumVertices,
         }
         AI_ASE_HANDLE_SECTION("3", "*MESH_TVERT_LIST");
     }
+    return;
 }
 // ------------------------------------------------------------------------------------------------
 void Parser::ParseLV3MeshTFaceListBlock(unsigned int iNumFaces,
@@ -1526,6 +1526,7 @@ void Parser::ParseLV3MeshTFaceListBlock(unsigned int iNumFaces,
         }
         AI_ASE_HANDLE_SECTION("3", "*MESH_TFACE_LIST");
     }
+    return;
 }
 // ------------------------------------------------------------------------------------------------
 void Parser::ParseLV3MappingChannel(unsigned int iChannel, ASE::Mesh &mesh) {
@@ -1560,6 +1561,7 @@ void Parser::ParseLV3MappingChannel(unsigned int iChannel, ASE::Mesh &mesh) {
         }
         AI_ASE_HANDLE_SECTION("3", "*MESH_MAPPING_CHANNEL");
     }
+    return;
 }
 // ------------------------------------------------------------------------------------------------
 void Parser::ParseLV3MeshCListBlock(unsigned int iNumVertices, ASE::Mesh &mesh) {
@@ -1587,6 +1589,7 @@ void Parser::ParseLV3MeshCListBlock(unsigned int iNumVertices, ASE::Mesh &mesh)
         }
         AI_ASE_HANDLE_SECTION("3", "*MESH_CVERTEX_LIST");
     }
+    return;
 }
 // ------------------------------------------------------------------------------------------------
 void Parser::ParseLV3MeshCFaceListBlock(unsigned int iNumFaces, ASE::Mesh &mesh) {
@@ -1614,6 +1617,7 @@ void Parser::ParseLV3MeshCFaceListBlock(unsigned int iNumFaces, ASE::Mesh &mesh)
         }
         AI_ASE_HANDLE_SECTION("3", "*MESH_CFACE_LIST");
     }
+    return;
 }
 // ------------------------------------------------------------------------------------------------
 void Parser::ParseLV3MeshNormalListBlock(ASE::Mesh &sMesh) {
@@ -1671,6 +1675,7 @@ void Parser::ParseLV3MeshNormalListBlock(ASE::Mesh &sMesh) {
         }
         AI_ASE_HANDLE_SECTION("3", "*MESH_NORMALS");
     }
+    return;
 }
 // ------------------------------------------------------------------------------------------------
 void Parser::ParseLV4MeshFace(ASE::Face &out) {
@@ -1763,13 +1768,7 @@ void Parser::ParseLV4MeshFace(ASE::Face &out) {
         // FIX: There needn't always be a value, sad but true
         while (true) {
             if (*filePtr < '9' && *filePtr >= '0') {
-                uint32_t value = strtoul10(filePtr, &filePtr);
-                if (value < 32) {
-                    out.iSmoothGroup |= (1 << strtoul10(filePtr, &filePtr));
-                } else {
-                    const std::string message = std::string("Unable to set smooth group, value with ") + ai_to_string(value) + std::string(" out of range");
-                    LogWarning(message.c_str());
-                }
+                out.iSmoothGroup |= (1 << strtoul10(filePtr, &filePtr));
             }
             SkipSpaces(&filePtr);
             if (',' != *filePtr) {
@@ -1782,9 +1781,7 @@ void Parser::ParseLV4MeshFace(ASE::Face &out) {
 
     // *MESH_MTLID  is optional, too
     while (true) {
-        if ('*' == *filePtr) {
-            break;
-        }
+        if ('*' == *filePtr) break;
         if (IsLineEnd(*filePtr)) {
             return;
         }
@@ -1833,9 +1830,8 @@ void Parser::ParseLV4MeshFloatTriple(ai_real *apOut, unsigned int &rIndexOut) {
 void Parser::ParseLV4MeshFloatTriple(ai_real *apOut) {
     ai_assert(nullptr != apOut);
 
-    for (unsigned int i = 0; i < 3; ++i) {
+    for (unsigned int i = 0; i < 3; ++i)
         ParseLV4MeshFloat(apOut[i]);
-    }
 }
 // ------------------------------------------------------------------------------------------------
 void Parser::ParseLV4MeshFloat(ai_real &fOut) {

code/AssetLib/ASE/ASEParser.h

@@ -2,7 +2,8 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2021, assimp team
+
 
 All rights reserved.
 
@@ -115,7 +116,7 @@ struct Material : public D3DS::Material {
         return *this;
     }
 
-    ~Material() = default;
+    ~Material() {}
 
     //! Contains all sub materials of this material
     std::vector<Material> avSubMaterials;
@@ -384,10 +385,12 @@ struct Dummy : public BaseNode {
 /** \brief Class to parse ASE files
  */
 class Parser {
-public:
-    /// @brief No default constructor.
-    Parser() = delete;
+private:
+    Parser() AI_NO_EXCEPT {
+        // empty
+    }
 
+public:
     // -------------------------------------------------------------------
     //! Construct a parser from a given input file which is
     //! guaranteed to be terminated with zero.

code/AssetLib/Assbin/AssbinExporter.cpp

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2021, 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) 2006-2021, assimp team
 
 All rights reserved.
 
@@ -56,5 +56,5 @@ namespace Assimp {
 void ASSIMP_API ExportSceneAssbin(const char* pFile, IOSystem* pIOSystem, const aiScene* pScene, const ExportProperties* /*pProperties*/);
 
 }
-#endif
+#endif 
 #endif // AI_ASSBINEXPORTER_H_INC

code/AssetLib/Assbin/AssbinFileWriter.cpp

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2021, assimp team
 
 All rights reserved.
 
@@ -130,7 +130,7 @@ inline size_t Write<double>(IOStream *stream, const double &f) {
 // Serialize a vec3
 template <>
 inline size_t Write<aiVector3D>(IOStream *stream, const aiVector3D &v) {
-    size_t t = Write<ai_real>(stream, v.x);
+    size_t t = Write<float>(stream, v.x);
     t += Write<float>(stream, v.y);
     t += Write<float>(stream, v.z);
 
@@ -141,7 +141,7 @@ inline size_t Write<aiVector3D>(IOStream *stream, const aiVector3D &v) {
 // Serialize a color value
 template <>
 inline size_t Write<aiColor3D>(IOStream *stream, const aiColor3D &v) {
-    size_t t = Write<ai_real>(stream, v.r);
+    size_t t = Write<float>(stream, v.r);
     t += Write<float>(stream, v.g);
     t += Write<float>(stream, v.b);
 
@@ -152,7 +152,7 @@ inline size_t Write<aiColor3D>(IOStream *stream, const aiColor3D &v) {
 // Serialize a color value
 template <>
 inline size_t Write<aiColor4D>(IOStream *stream, const aiColor4D &v) {
-    size_t t = Write<ai_real>(stream, v.r);
+    size_t t = Write<float>(stream, v.r);
     t += Write<float>(stream, v.g);
     t += Write<float>(stream, v.b);
     t += Write<float>(stream, v.a);
@@ -164,7 +164,7 @@ inline size_t Write<aiColor4D>(IOStream *stream, const aiColor4D &v) {
 // Serialize a quaternion
 template <>
 inline size_t Write<aiQuaternion>(IOStream *stream, const aiQuaternion &v) {
-    size_t t = Write<ai_real>(stream, v.w);
+    size_t t = Write<float>(stream, v.w);
     t += Write<float>(stream, v.x);
     t += Write<float>(stream, v.y);
     t += Write<float>(stream, v.z);
@@ -182,19 +182,17 @@ inline size_t Write<aiVertexWeight>(IOStream *stream, const aiVertexWeight &v) {
     return t + Write<float>(stream, v.mWeight);
 }
 
-constexpr size_t MatrixSize = 64;
-
 // -----------------------------------------------------------------------------------
 // Serialize a mat4x4
 template <>
 inline size_t Write<aiMatrix4x4>(IOStream *stream, const aiMatrix4x4 &m) {
     for (unsigned int i = 0; i < 4; ++i) {
         for (unsigned int i2 = 0; i2 < 4; ++i2) {
-            Write<ai_real>(stream, m[i][i2]);
+            Write<float>(stream, m[i][i2]);
         }
     }
 
-    return MatrixSize;
+    return 64;
 }
 
 // -----------------------------------------------------------------------------------
@@ -291,15 +289,15 @@ public:
     size_t Read(void * /*pvBuffer*/, size_t /*pSize*/, size_t /*pCount*/) override {
         return 0;
     }
-
+    
     aiReturn Seek(size_t /*pOffset*/, aiOrigin /*pOrigin*/) override {
         return aiReturn_FAILURE;
     }
-
+    
     size_t Tell() const override {
         return cursor;
     }
-
+    
     void Flush() override {
         // not implemented
     }
@@ -642,10 +640,6 @@ protected:
         Write<aiString>(&chunk, l->mName);
         Write<unsigned int>(&chunk, l->mType);
 
-        Write<aiVector3D>(&chunk, l->mPosition);
-        Write<aiVector3D>(&chunk, l->mDirection);
-        Write<aiVector3D>(&chunk, l->mUp);
-
         if (l->mType != aiLightSource_DIRECTIONAL) {
             Write<float>(&chunk, l->mAttenuationConstant);
             Write<float>(&chunk, l->mAttenuationLinear);

code/AssetLib/Assbin/AssbinFileWriter.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2021, 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) 2006-2021, assimp team
 
 All rights reserved.
 
@@ -556,10 +556,6 @@ void AssbinImporter::ReadBinaryLight(IOStream *stream, aiLight *l) {
     l->mName = Read<aiString>(stream);
     l->mType = (aiLightSourceType)Read<unsigned int>(stream);
 
-    l->mPosition = Read<aiVector3D>(stream);
-    l->mDirection = Read<aiVector3D>(stream);
-    l->mUp = Read<aiVector3D>(stream);
-
     if (l->mType != aiLightSource_DIRECTIONAL) {
         l->mAttenuationConstant = Read<float>(stream);
         l->mAttenuationLinear = Read<float>(stream);

code/AssetLib/Assbin/AssbinLoader.h

@@ -3,7 +3,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2021, assimp team
 
 All rights reserved.
 

code/AssetLib/Assjson/cencode.c

@@ -7,7 +7,7 @@ For details, see http://sourceforge.net/projects/libb64
 
 #include "cencode.h" // changed from <B64/cencode.h>
 
-static const int CHARS_PER_LINE = 72;
+const int CHARS_PER_LINE = 72;
 
 #ifdef _MSC_VER
 #pragma warning(push)

code/AssetLib/Assjson/json_exporter.cpp

@@ -10,7 +10,6 @@ Licensed under a 3-clause BSD license. See the LICENSE file for more information
 #ifndef ASSIMP_BUILD_NO_ASSJSON_EXPORTER
 
 #include <assimp/scene.h>
-#include <assimp/ai_assert.h>
 #include <assimp/Exporter.hpp>
 #include <assimp/IOStream.hpp>
 #include <assimp/IOSystem.hpp>
@@ -24,15 +23,16 @@ Licensed under a 3-clause BSD license. See the LICENSE file for more information
 
 #define CURRENT_FORMAT_VERSION 100
 
+// grab scoped_ptr from assimp to avoid a dependency on boost.
+//#include <assimp/../../code/BoostWorkaround/boost/scoped_ptr.hpp>
+
 #include "mesh_splitter.h"
 
 extern "C" {
-#   include "cencode.h"
+#include "cencode.h"
 }
-
 namespace Assimp {
 
-// Forward declarations
 void ExportAssimp2Json(const char *, Assimp::IOSystem *, const aiScene *, const Assimp::ExportProperties *);
 
 // small utility class to simplify serializing the aiScene to Json
@@ -43,7 +43,7 @@ public:
         Flag_WriteSpecialFloats = 0x2,
         Flag_SkipWhitespaces = 0x4
     };
-
+    
     JSONWriter(Assimp::IOStream &out, unsigned int flags = 0u) :
             out(out), indent (""), newline("\n"), space(" "), buff (), first(false), flags(flags) {
         // make sure that all formatting happens using the standard, C locale and not the user's current locale
@@ -179,6 +179,7 @@ private:
         // escape backslashes and single quotes, both would render the JSON invalid if left as is
         t.reserve(s.length);
         for (size_t i = 0; i < s.length; ++i) {
+
             if (s.data[i] == '\\' || s.data[i] == '\'' || s.data[i] == '\"') {
                 t.push_back('\\');
             }
@@ -240,7 +241,7 @@ private:
     unsigned int flags;
 };
 
-static void Write(JSONWriter &out, const aiVector3D &ai, bool is_elem = true) {
+void Write(JSONWriter &out, const aiVector3D &ai, bool is_elem = true) {
     out.StartArray(is_elem);
     out.Element(ai.x);
     out.Element(ai.y);
@@ -248,7 +249,7 @@ static void Write(JSONWriter &out, const aiVector3D &ai, bool is_elem = true) {
     out.EndArray();
 }
 
-static void Write(JSONWriter &out, const aiQuaternion &ai, bool is_elem = true) {
+void Write(JSONWriter &out, const aiQuaternion &ai, bool is_elem = true) {
     out.StartArray(is_elem);
     out.Element(ai.w);
     out.Element(ai.x);
@@ -257,7 +258,7 @@ static void Write(JSONWriter &out, const aiQuaternion &ai, bool is_elem = true)
     out.EndArray();
 }
 
-static void Write(JSONWriter &out, const aiColor3D &ai, bool is_elem = true) {
+void Write(JSONWriter &out, const aiColor3D &ai, bool is_elem = true) {
     out.StartArray(is_elem);
     out.Element(ai.r);
     out.Element(ai.g);
@@ -265,7 +266,7 @@ static void Write(JSONWriter &out, const aiColor3D &ai, bool is_elem = true) {
     out.EndArray();
 }
 
-static void Write(JSONWriter &out, const aiMatrix4x4 &ai, bool is_elem = true) {
+void Write(JSONWriter &out, const aiMatrix4x4 &ai, bool is_elem = true) {
     out.StartArray(is_elem);
     for (unsigned int x = 0; x < 4; ++x) {
         for (unsigned int y = 0; y < 4; ++y) {
@@ -275,7 +276,7 @@ static void Write(JSONWriter &out, const aiMatrix4x4 &ai, bool is_elem = true) {
     out.EndArray();
 }
 
-static void Write(JSONWriter &out, const aiBone &ai, bool is_elem = true) {
+void Write(JSONWriter &out, const aiBone &ai, bool is_elem = true) {
     out.StartObj(is_elem);
 
     out.Key("name");
@@ -296,7 +297,7 @@ static void Write(JSONWriter &out, const aiBone &ai, bool is_elem = true) {
     out.EndObj();
 }
 
-static void Write(JSONWriter &out, const aiFace &ai, bool is_elem = true) {
+void Write(JSONWriter &out, const aiFace &ai, bool is_elem = true) {
     out.StartArray(is_elem);
     for (unsigned int i = 0; i < ai.mNumIndices; ++i) {
         out.Element(ai.mIndices[i]);
@@ -304,7 +305,7 @@ static void Write(JSONWriter &out, const aiFace &ai, bool is_elem = true) {
     out.EndArray();
 }
 
-static void Write(JSONWriter &out, const aiMesh &ai, bool is_elem = true) {
+void Write(JSONWriter &out, const aiMesh &ai, bool is_elem = true) {
     out.StartObj(is_elem);
 
     out.Key("name");
@@ -415,7 +416,7 @@ static void Write(JSONWriter &out, const aiMesh &ai, bool is_elem = true) {
     out.EndObj();
 }
 
-static void Write(JSONWriter &out, const aiNode &ai, bool is_elem = true) {
+void Write(JSONWriter &out, const aiNode &ai, bool is_elem = true) {
     out.StartObj(is_elem);
 
     out.Key("name");
@@ -445,7 +446,7 @@ static void Write(JSONWriter &out, const aiNode &ai, bool is_elem = true) {
     out.EndObj();
 }
 
-static void Write(JSONWriter &out, const aiMaterial &ai, bool is_elem = true) {
+void Write(JSONWriter &out, const aiMaterial &ai, bool is_elem = true) {
     out.StartObj(is_elem);
 
     out.Key("properties");
@@ -465,55 +466,41 @@ static void Write(JSONWriter &out, const aiMaterial &ai, bool is_elem = true) {
 
         out.Key("value");
         switch (prop->mType) {
-            case aiPTI_Float:
-                if (prop->mDataLength / sizeof(float) > 1) {
-                    out.StartArray();
-                    for (unsigned int ii = 0; ii < prop->mDataLength / sizeof(float); ++ii) {
-                        out.Element(reinterpret_cast<float *>(prop->mData)[ii]);
-                    }
-                    out.EndArray();
-                } else {
-                    out.SimpleValue(*reinterpret_cast<float *>(prop->mData));
+        case aiPTI_Float:
+            if (prop->mDataLength / sizeof(float) > 1) {
+                out.StartArray();
+                for (unsigned int ii = 0; ii < prop->mDataLength / sizeof(float); ++ii) {
+                    out.Element(reinterpret_cast<float *>(prop->mData)[ii]);
                 }
-                break;
-            case aiPTI_Double:
-                if (prop->mDataLength / sizeof(double) > 1) {
-                    out.StartArray();
-                    for (unsigned int ii = 0; ii < prop->mDataLength / sizeof(double); ++ii) {
-                        out.Element(reinterpret_cast<double*>(prop->mData)[ii]);
-                    }
-                    out.EndArray();
-                } else {
-                    out.SimpleValue(*reinterpret_cast<double*>(prop->mData));
-                }
-                break;
-            case aiPTI_Integer:
-                if (prop->mDataLength / sizeof(int) > 1) {
-                    out.StartArray();
-                    for (unsigned int ii = 0; ii < prop->mDataLength / sizeof(int); ++ii) {
-                        out.Element(reinterpret_cast<int *>(prop->mData)[ii]);
-                    }
-                    out.EndArray();
-                } else {
-                    out.SimpleValue(*reinterpret_cast<int *>(prop->mData));
-                }
-                break;
+                out.EndArray();
+            } else {
+                out.SimpleValue(*reinterpret_cast<float *>(prop->mData));
+            }
+            break;
 
-            case aiPTI_String:
-                {
-                    aiString s;
-                    aiGetMaterialString(&ai, prop->mKey.data, prop->mSemantic, prop->mIndex, &s);
-                    out.SimpleValue(s);
+        case aiPTI_Integer:
+            if (prop->mDataLength / sizeof(int) > 1) {
+                out.StartArray();
+                for (unsigned int ii = 0; ii < prop->mDataLength / sizeof(int); ++ii) {
+                    out.Element(reinterpret_cast<int *>(prop->mData)[ii]);
                 }
-                break;
-            case aiPTI_Buffer:
-                {
-                    // binary data is written as series of hex-encoded octets
-                    out.SimpleValue(prop->mData, prop->mDataLength);
-                }
-                break;
-            default:
-                ai_assert(false);
+                out.EndArray();
+            } else {
+                out.SimpleValue(*reinterpret_cast<int *>(prop->mData));
+            }
+            break;
+
+        case aiPTI_String: {
+            aiString s;
+            aiGetMaterialString(&ai, prop->mKey.data, prop->mSemantic, prop->mIndex, &s);
+            out.SimpleValue(s);
+        } break;
+        case aiPTI_Buffer: {
+            // binary data is written as series of hex-encoded octets
+            out.SimpleValue(prop->mData, prop->mDataLength);
+        } break;
+        default:
+            assert(false);
         }
 
         out.EndObj();
@@ -523,7 +510,7 @@ static void Write(JSONWriter &out, const aiMaterial &ai, bool is_elem = true) {
     out.EndObj();
 }
 
-static void Write(JSONWriter &out, const aiTexture &ai, bool is_elem = true) {
+void Write(JSONWriter &out, const aiTexture &ai, bool is_elem = true) {
     out.StartObj(is_elem);
 
     out.Key("width");
@@ -559,7 +546,7 @@ static void Write(JSONWriter &out, const aiTexture &ai, bool is_elem = true) {
     out.EndObj();
 }
 
-static void Write(JSONWriter &out, const aiLight &ai, bool is_elem = true) {
+void Write(JSONWriter &out, const aiLight &ai, bool is_elem = true) {
     out.StartObj(is_elem);
 
     out.Key("name");
@@ -607,7 +594,7 @@ static void Write(JSONWriter &out, const aiLight &ai, bool is_elem = true) {
     out.EndObj();
 }
 
-static void Write(JSONWriter &out, const aiNodeAnim &ai, bool is_elem = true) {
+void Write(JSONWriter &out, const aiNodeAnim &ai, bool is_elem = true) {
     out.StartObj(is_elem);
 
     out.Key("name");
@@ -660,7 +647,7 @@ static void Write(JSONWriter &out, const aiNodeAnim &ai, bool is_elem = true) {
     out.EndObj();
 }
 
-static void Write(JSONWriter &out, const aiAnimation &ai, bool is_elem = true) {
+void Write(JSONWriter &out, const aiAnimation &ai, bool is_elem = true) {
     out.StartObj(is_elem);
 
     out.Key("name");
@@ -681,7 +668,7 @@ static void Write(JSONWriter &out, const aiAnimation &ai, bool is_elem = true) {
     out.EndObj();
 }
 
-static void Write(JSONWriter &out, const aiCamera &ai, bool is_elem = true) {
+void Write(JSONWriter &out, const aiCamera &ai, bool is_elem = true) {
     out.StartObj(is_elem);
 
     out.Key("name");
@@ -708,7 +695,7 @@ static void Write(JSONWriter &out, const aiCamera &ai, bool is_elem = true) {
     out.EndObj();
 }
 
-static void WriteFormatInfo(JSONWriter &out) {
+void WriteFormatInfo(JSONWriter &out) {
     out.StartObj();
     out.Key("format");
     out.SimpleValue("\"assimp2json\"");
@@ -717,7 +704,7 @@ static void WriteFormatInfo(JSONWriter &out) {
     out.EndObj();
 }
 
-static void Write(JSONWriter &out, const aiScene &ai) {
+void Write(JSONWriter &out, const aiScene &ai) {
     out.StartObj();
 
     out.Key("__metadata__");

code/AssetLib/Assjson/mesh_splitter.cpp

@@ -304,7 +304,7 @@ void MeshSplitter :: SplitMesh(unsigned int a, aiMesh* in_mesh, std::vector<std:
 		}
 
 		// add the newly created mesh to the list
-		source_mesh_map.emplace_back(out_mesh,a);
+		source_mesh_map.push_back(std::make_pair(out_mesh,a));
 
 		if (base == in_mesh->mNumFaces) {
 			break;

code/AssetLib/Assxml/AssxmlExporter.cpp

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2021, 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) 2006-2021, 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) 2006-2021, assimp team
 
 
 All rights reserved.
@@ -365,7 +365,7 @@ static void WriteDump(const char *pFile, const char *cmd, const aiScene *scene,
 
                 ioprintf(io, "\t\t\t<MatProperty key=\"%s\" \n\t\t\ttype=\"%s\" tex_usage=\"%s\" tex_index=\"%u\"",
                         prop->mKey.data, sz,
-                        ::aiTextureTypeToString((aiTextureType)prop->mSemantic), prop->mIndex);
+                        ::TextureTypeToString((aiTextureType)prop->mSemantic), prop->mIndex);
 
                 if (prop->mType == aiPTI_Float) {
                     ioprintf(io, " size=\"%i\">\n\t\t\t\t",
@@ -652,7 +652,7 @@ void DumpSceneToAssxml(
         const char *pFile, const char *cmd, IOSystem *pIOSystem,
         const aiScene *pScene, bool shortened) {
     std::unique_ptr<IOStream> file(pIOSystem->Open(pFile, "wt"));
-    if (!file) {
+    if (!file.get()) {
         throw std::runtime_error("Unable to open output file " + std::string(pFile) + '\n');
     }
 

code/AssetLib/Assxml/AssxmlFileWriter.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2021, 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) 2006-2021, assimp team
 
 All rights reserved.
 
@@ -81,17 +81,19 @@ static const aiImporterDesc desc = {
 
 //#define DEBUG_B3D
 
-template<typename T>
+template <typename T>
 void DeleteAllBarePointers(std::vector<T> &x) {
     for (auto p : x) {
         delete p;
     }
 }
 
-B3DImporter::~B3DImporter() = default;
+B3DImporter::~B3DImporter() {
+}
 
 // ------------------------------------------------------------------------------------------------
 bool B3DImporter::CanRead(const std::string &pFile, IOSystem * /*pIOHandler*/, bool /*checkSig*/) const {
+
     size_t pos = pFile.find_last_of('.');
     if (pos == string::npos) {
         return false;
@@ -116,7 +118,7 @@ void B3DImporter::InternReadFile(const std::string &pFile, aiScene *pScene, IOSy
     std::unique_ptr<IOStream> file(pIOHandler->Open(pFile));
 
     // Check whether we can read from the file
-    if (file == nullptr) {
+    if (file.get() == nullptr) {
         throw DeadlyImportError("Failed to open B3D file ", pFile, ".");
     }
 
@@ -150,7 +152,7 @@ AI_WONT_RETURN void B3DImporter::Fail(const string &str) {
 
 // ------------------------------------------------------------------------------------------------
 int B3DImporter::ReadByte() {
-    if (_pos >= _buf.size()) {
+    if (_pos > _buf.size()) {
         Fail("EOF");
     }
 
@@ -253,7 +255,7 @@ size_t B3DImporter::ChunkSize() {
 template <class T>
 T *B3DImporter::to_array(const vector<T> &v) {
     if (v.empty()) {
-        return nullptr;
+        return 0;
     }
     T *p = new T[v.size()];
     for (size_t i = 0; i < v.size(); ++i) {
@@ -266,7 +268,7 @@ T *B3DImporter::to_array(const vector<T> &v) {
 template <class T>
 T **unique_to_array(vector<std::unique_ptr<T>> &v) {
     if (v.empty()) {
-        return nullptr;
+        return 0;
     }
     T **p = new T *[v.size()];
     for (size_t i = 0; i < v.size(); ++i) {
@@ -418,6 +420,7 @@ void B3DImporter::ReadTRIS(int v0) {
             ASSIMP_LOG_ERROR("Bad triangle index: i0=", i0, ", i1=", i1, ", i2=", i2);
 #endif
             Fail("Bad triangle index");
+            continue;
         }
         face->mNumIndices = 3;
         face->mIndices = new unsigned[3];
@@ -476,13 +479,13 @@ void B3DImporter::ReadKEYS(aiNodeAnim *nodeAnim) {
     while (ChunkSize()) {
         int frame = ReadInt();
         if (flags & 1) {
-            trans.emplace_back(frame, ReadVec3());
+            trans.push_back(aiVectorKey(frame, ReadVec3()));
         }
         if (flags & 2) {
-            scale.emplace_back(frame, ReadVec3());
+            scale.push_back(aiVectorKey(frame, ReadVec3()));
         }
         if (flags & 4) {
-            rot.emplace_back(frame, ReadQuat());
+            rot.push_back(aiQuatKey(frame, ReadQuat()));
         }
     }
 
@@ -616,7 +619,7 @@ void B3DImporter::ReadBB3D(aiScene *scene) {
             } else if (chunk == "BRUS") {
                 ReadBRUS();
             } else if (chunk == "NODE") {
-                ReadNODE(nullptr);
+                ReadNODE(0);
             }
             ExitChunk();
         }
@@ -641,7 +644,7 @@ void B3DImporter::ReadBB3D(aiScene *scene) {
             int n_tris = mesh->mNumFaces;
             int n_verts = mesh->mNumVertices = n_tris * 3;
 
-            aiVector3D *mv = mesh->mVertices = new aiVector3D[n_verts], *mn = nullptr, *mc = nullptr;
+            aiVector3D *mv = mesh->mVertices = new aiVector3D[n_verts], *mn = 0, *mc = 0;
             if (_vflags & 1) {
                 mn = mesh->mNormals = new aiVector3D[n_verts];
             }
@@ -670,7 +673,7 @@ void B3DImporter::ReadBB3D(aiScene *scene) {
                         int bone = v.bones[k];
                         float weight = v.weights[k];
 
-                        vweights[bone].emplace_back(vertIdx + faceIndex, weight);
+                        vweights[bone].push_back(aiVertexWeight(vertIdx + faceIndex, weight));
                     }
                 }
                 ++face;

code/AssetLib/B3D/B3DImporter.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2021, 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) 2006-2021, assimp team
 
 
 
@@ -88,13 +88,22 @@ BVHLoader::BVHLoader() :
 
 // ------------------------------------------------------------------------------------------------
 // Destructor, private as well
-BVHLoader::~BVHLoader() = default;
+BVHLoader::~BVHLoader() {}
 
 // ------------------------------------------------------------------------------------------------
 // Returns whether the class can handle the format of the given file.
-bool BVHLoader::CanRead(const std::string &pFile, IOSystem *pIOHandler, bool /*checkSig*/) const {
-    static const char *tokens[] = { "HIERARCHY" };
-    return SearchFileHeaderForToken(pIOHandler, pFile, tokens, AI_COUNT_OF(tokens));
+bool BVHLoader::CanRead(const std::string &pFile, IOSystem *pIOHandler, bool cs) const {
+    // check file extension
+    const std::string extension = GetExtension(pFile);
+
+    if (extension == "bvh")
+        return true;
+
+    if ((!extension.length() || cs) && pIOHandler) {
+        static const char * const tokens[] = { "HIERARCHY" };
+        return SearchFileHeaderForToken(pIOHandler, pFile, tokens, 1);
+    }
+    return false;
 }
 
 // ------------------------------------------------------------------------------------------------
@@ -115,7 +124,7 @@ void BVHLoader::InternReadFile(const std::string &pFile, aiScene *pScene, IOSyst
 
     // read file into memory
     std::unique_ptr<IOStream> file(pIOHandler->Open(pFile));
-    if (file == nullptr) {
+    if (file.get() == nullptr) {
         throw DeadlyImportError("Failed to open file ", pFile, ".");
     }
 
@@ -186,12 +195,12 @@ aiNode *BVHLoader::ReadNode() {
     std::vector<aiNode *> childNodes;
 
     // and create an bone entry for it
-    mNodes.emplace_back(node);
+    mNodes.push_back(Node(node));
     Node &internNode = mNodes.back();
 
     // now read the node's contents
     std::string siteToken;
-    while (true) {
+    while (1) {
         std::string token = GetNextToken();
 
         // node offset to parent node
@@ -247,7 +256,7 @@ aiNode *BVHLoader::ReadEndSite(const std::string &pParentName) {
 
     // now read the node's contents. Only possible entry is "OFFSET"
     std::string token;
-    while (true) {
+    while (1) {
         token.clear();
         token = GetNextToken();
 

code/AssetLib/BVH/BVHLoader.h

@@ -4,7 +4,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2021, 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) 2006-2021, assimp team
 All rights reserved.
 
 Redistribution and use of this software in source and binary forms,
@@ -52,7 +52,8 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 namespace Assimp {
 template <>
 const char *LogFunctions<BlenderBMeshConverter>::Prefix() {
-    return "BLEND_BMESH: ";
+    static auto prefix = "BLEND_BMESH: ";
+    return prefix;
 }
 } // namespace Assimp
 
@@ -139,7 +140,7 @@ void BlenderBMeshConverter::ConvertPolyToFaces(const MPoly &poly) {
                 ThrowException("BMesh uv loop array has incorrect size");
             }
             const MLoopUV *loopUV = &BMesh->mloopuv[poly.loopstart];
-            AddTFace(loopUV[0].uv, loopUV[1].uv, loopUV[2].uv, poly.totloop == 4 ? loopUV[3].uv : nullptr);
+            AddTFace(loopUV[0].uv, loopUV[1].uv, loopUV[2].uv, poly.totloop == 4 ? loopUV[3].uv : 0);
         }
     } else if (poly.totloop > 4) {
 #if ASSIMP_BLEND_WITH_GLU_TESSELLATE

code/AssetLib/Blender/BlenderBMesh.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2021, assimp team
 All rights reserved.
 
 Redistribution and use of this software in source and binary forms,
@@ -80,7 +80,7 @@ namespace Assimp
         void DestroyTriMesh( );
         void ConvertPolyToFaces( const Blender::MPoly& poly );
         void AddFace( int v1, int v2, int v3, int v4 = 0 );
-        void AddTFace(const float *uv1, const float *uv2, const float *uv3, const float *uv4 = nullptr);
+        void AddTFace( const float* uv1, const float* uv2, const float *uv3, const float* uv4 = 0 );
 
         const Blender::Mesh* BMesh;
         Blender::Mesh* triMesh;

code/AssetLib/Blender/BlenderCustomData.cpp

@@ -96,8 +96,7 @@ struct CustomDataTypeDescription {
         *           other (like CD_ORCO, ...) uses arrays of rawtypes or even arrays of Structures
         *           use a special readfunction for that cases
         */
-static std::array<CustomDataTypeDescription, CD_NUMTYPES> customDataTypeDescriptions = { {
-        DECL_STRUCT_CUSTOMDATATYPEDESCRIPTION(MVert),
+std::array<CustomDataTypeDescription, CD_NUMTYPES> customDataTypeDescriptions = { { DECL_STRUCT_CUSTOMDATATYPEDESCRIPTION(MVert),
         DECL_UNSUPPORTED_CUSTOMDATATYPEDESCRIPTION,
         DECL_UNSUPPORTED_CUSTOMDATATYPEDESCRIPTION,
         DECL_STRUCT_CUSTOMDATATYPEDESCRIPTION(MEdge),

code/AssetLib/Blender/BlenderDNA.cpp

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2021, assimp team
 
 
 All rights reserved.
@@ -72,7 +72,7 @@ struct Type {
 
 // ------------------------------------------------------------------------------------------------
 void DNAParser::Parse() {
-    StreamReaderAny &stream = *db.reader;
+    StreamReaderAny &stream = *db.reader.get();
     DNA &dna = db.dna;
 
     if (!match4(stream, "SDNA")) {
@@ -325,10 +325,10 @@ void SectionParser ::Next() {
     stream.SetCurrentPos(current.start + current.size);
 
     const char tmp[] = {
-        (char)stream.GetI1(),
-        (char)stream.GetI1(),
-        (char)stream.GetI1(),
-        (char)stream.GetI1()
+        (const char)stream.GetI1(),
+        (const char)stream.GetI1(),
+        (const char)stream.GetI1(),
+        (const char)stream.GetI1()
     };
     current.id = std::string(tmp, tmp[3] ? 4 : tmp[2] ? 3 : tmp[1] ? 2 : 1);
 

code/AssetLib/Blender/BlenderDNA.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2021, assimp team
 
 
 All rights reserved.
@@ -106,7 +106,9 @@ struct ElemBase {
         // empty
     }
 
-    virtual ~ElemBase() = default;
+    virtual ~ElemBase() {
+        // empty
+    }
 
     /** Type name of the element. The type
      * string points is the `c_str` of the `name` attribute of the
@@ -414,10 +416,10 @@ template <>
 struct Structure::_defaultInitializer<ErrorPolicy_Fail> {
 
     template <typename T>
-    void operator()(T & /*out*/, const char *message = "") {
+    void operator()(T & /*out*/, const char * = "") {
         // obviously, it is crucial that _DefaultInitializer is used
         // only from within a catch clause.
-        throw DeadlyImportError("Constructing BlenderDNA Structure encountered an error: ", message);
+        throw DeadlyImportError("Constructing BlenderDNA Structure encountered an error");
     }
 };
 
@@ -429,17 +431,6 @@ inline bool Structure ::ResolvePointer<std::shared_ptr, ElemBase>(std::shared_pt
         const Field &f,
         bool) const;
 
-template <> bool Structure :: ResolvePointer<std::shared_ptr,ElemBase>(
-    std::shared_ptr<ElemBase>& out, const Pointer & ptrval,
-    const FileDatabase& db, const Field&, bool) const;
-template <> inline void Structure :: Convert<int>    (int& dest,const FileDatabase& db) const;
-template<> inline void Structure :: Convert<short>  (short& dest,const FileDatabase& db) const;
-template <> inline void Structure :: Convert<char>   (char& dest,const FileDatabase& db) const;
-template <> inline void Structure::Convert<unsigned char>(unsigned char& dest, const FileDatabase& db) const;
-template <> inline void Structure :: Convert<float>  (float& dest,const FileDatabase& db) const;
-template <> inline void Structure :: Convert<double> (double& dest,const FileDatabase& db) const;
-template <> inline void Structure :: Convert<Pointer> (Pointer& dest,const FileDatabase& db) const;
-
 // -------------------------------------------------------------------------------
 /** Represents the full data structure information for a single BLEND file.
  *  This data is extracted from the DNA1 chunk in the file.

code/AssetLib/Blender/BlenderDNA.inl

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2021, 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) 2006-2021, assimp team
 
 
 All rights reserved.
@@ -65,7 +65,8 @@ namespace Blender {
     struct TempArray    {
         typedef TCLASS< T*,std::allocator<T*> > mywrap;
 
-        TempArray() = default;
+        TempArray() {
+        }
 
         ~TempArray () {
             for(T* elem : arr) {

code/AssetLib/Blender/BlenderLoader.cpp

@@ -3,7 +3,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2021, assimp team
 
 
 All rights reserved.
@@ -63,24 +63,22 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include <assimp/StringComparison.h>
 
 #include <cctype>
-#include <memory>
-#include <utility>
 
 // zlib is needed for compressed blend files
 #ifndef ASSIMP_BUILD_NO_COMPRESSED_BLEND
-#include "Common/Compression.h"
-/* #ifdef ASSIMP_BUILD_NO_OWN_ZLIB
+#  ifdef ASSIMP_BUILD_NO_OWN_ZLIB
 #    include <zlib.h>
 #  else
 #    include "../contrib/zlib/zlib.h"
-#  endif*/
+#  endif
 #endif
 
 namespace Assimp {
 
 template <>
 const char *LogFunctions<BlenderImporter>::Prefix() {
-    return "BLEND: ";
+    static auto prefix = "BLEND: ";
+    return prefix;
 }
 
 } // namespace Assimp
@@ -115,12 +113,23 @@ BlenderImporter::~BlenderImporter() {
     delete modifier_cache;
 }
 
-static const char Token[] = "BLENDER";
+static const char * const Tokens[] = { "BLENDER" };
+static const char * const TokensForSearch[] = { "blender" };
 
 // ------------------------------------------------------------------------------------------------
 // Returns whether the class can handle the format of the given file.
-bool BlenderImporter::CanRead(const std::string &pFile, IOSystem *pIOHandler, bool /*checkSig*/) const {
-    return ParseMagicToken(pFile, pIOHandler).error.empty();
+bool BlenderImporter::CanRead(const std::string &pFile, IOSystem *pIOHandler, bool checkSig) const {
+    const std::string &extension = GetExtension(pFile);
+    if (extension == "blend") {
+        return true;
+    }
+
+    if ((!extension.length() || checkSig) && pIOHandler) {
+        // note: this won't catch compressed files
+        return SearchFileHeaderForToken(pIOHandler, pFile, TokensForSearch, 1);
+    }
+
+    return false;
 }
 
 // ------------------------------------------------------------------------------------------------
@@ -139,25 +148,98 @@ void BlenderImporter::SetupProperties(const Importer * /*pImp*/) {
 // Imports the given file into the given scene structure.
 void BlenderImporter::InternReadFile(const std::string &pFile,
         aiScene *pScene, IOSystem *pIOHandler) {
+#ifndef ASSIMP_BUILD_NO_COMPRESSED_BLEND
+    std::vector<Bytef> uncompressed;
+#endif
+
     FileDatabase file;
-    StreamOrError streamOrError = ParseMagicToken(pFile, pIOHandler);
-    if (!streamOrError.error.empty()) {
-        ThrowException(streamOrError.error);
+    std::shared_ptr<IOStream> stream(pIOHandler->Open(pFile, "rb"));
+    if (!stream) {
+        ThrowException("Could not open file for reading");
     }
-    std::shared_ptr<IOStream> stream = std::move(streamOrError.stream);
 
-    char version[4] = { 0 };
-    file.i64bit = (stream->Read(version, 1, 1), version[0] == '-');
-    file.little = (stream->Read(version, 1, 1), version[0] == 'v');
+    char magic[8] = { 0 };
+    stream->Read(magic, 7, 1);
+    if (strcmp(magic, Tokens[0])) {
+        // Check for presence of the gzip header. If yes, assume it is a
+        // compressed blend file and try uncompressing it, else fail. This is to
+        // avoid uncompressing random files which our loader might end up with.
+#ifdef ASSIMP_BUILD_NO_COMPRESSED_BLEND
+        ThrowException("BLENDER magic bytes are missing, is this file compressed (Assimp was built without decompression support)?");
+#else
 
-    stream->Read(version, 3, 1);
-    version[3] = '\0';
+        if (magic[0] != 0x1f || static_cast<uint8_t>(magic[1]) != 0x8b) {
+            ThrowException("BLENDER magic bytes are missing, couldn't find GZIP header either");
+        }
 
-    LogInfo("Blender version is ", version[0], ".", version + 1,
+        LogDebug("Found no BLENDER magic word but a GZIP header, might be a compressed file");
+        if (magic[2] != 8) {
+            ThrowException("Unsupported GZIP compression method");
+        }
+
+        // http://www.gzip.org/zlib/rfc-gzip.html#header-trailer
+        stream->Seek(0L, aiOrigin_SET);
+        std::shared_ptr<StreamReaderLE> reader = std::shared_ptr<StreamReaderLE>(new StreamReaderLE(stream));
+
+        // build a zlib stream
+        z_stream zstream;
+        zstream.opaque = Z_NULL;
+        zstream.zalloc = Z_NULL;
+        zstream.zfree = Z_NULL;
+        zstream.data_type = Z_BINARY;
+
+        // http://hewgill.com/journal/entries/349-how-to-decompress-gzip-stream-with-zlib
+        inflateInit2(&zstream, 16 + MAX_WBITS);
+
+        zstream.next_in = reinterpret_cast<Bytef *>(reader->GetPtr());
+        zstream.avail_in = (uInt)reader->GetRemainingSize();
+
+        size_t total = 0l;
+
+        // TODO: be smarter about this, decompress directly into heap buffer
+        // and decompress the data .... do 1k chunks in the hope that we won't kill the stack
+#define MYBLOCK 1024
+        Bytef block[MYBLOCK];
+        int ret;
+        do {
+            zstream.avail_out = MYBLOCK;
+            zstream.next_out = block;
+            ret = inflate(&zstream, Z_NO_FLUSH);
+
+            if (ret != Z_STREAM_END && ret != Z_OK) {
+                ThrowException("Failure decompressing this file using gzip, seemingly it is NOT a compressed .BLEND file");
+            }
+            const size_t have = MYBLOCK - zstream.avail_out;
+            total += have;
+            uncompressed.resize(total);
+            memcpy(uncompressed.data() + total - have, block, have);
+        } while (ret != Z_STREAM_END);
+
+        // terminate zlib
+        inflateEnd(&zstream);
+
+        // replace the input stream with a memory stream
+        stream.reset(new MemoryIOStream(reinterpret_cast<uint8_t *>(uncompressed.data()), total));
+
+        // .. and retry
+        stream->Read(magic, 7, 1);
+        if (strcmp(magic, "BLENDER")) {
+            ThrowException("Found no BLENDER magic word in decompressed GZIP file");
+        }
+#endif
+    }
+
+    file.i64bit = (stream->Read(magic, 1, 1), magic[0] == '-');
+    file.little = (stream->Read(magic, 1, 1), magic[0] == 'v');
+
+    stream->Read(magic, 3, 1);
+    magic[3] = '\0';
+
+    LogInfo("Blender version is ", magic[0], ".", magic + 1,
             " (64bit: ", file.i64bit ? "true" : "false",
             ", little endian: ", file.little ? "true" : "false", ")");
 
-    ParseBlendFile(file, std::move(stream));
+    ParseBlendFile(file, stream);
 
     Scene scene;
     ExtractScene(scene, file);
@@ -174,7 +256,7 @@ void BlenderImporter::ParseBlendFile(FileDatabase &out, std::shared_ptr<IOStream
 
     out.entries.reserve(128);
     { // even small BLEND files tend to consist of many file blocks
-        SectionParser parser(*out.reader, out.i64bit);
+        SectionParser parser(*out.reader.get(), out.i64bit);
 
         // first parse the file in search for the DNA and insert all other sections into the database
         while ((parser.Next(), 1)) {
@@ -237,7 +319,7 @@ void BlenderImporter::ExtractScene(Scene &out, const FileDatabase &file) {
 }
 
 // ------------------------------------------------------------------------------------------------
-void BlenderImporter::ParseSubCollection(const Blender::Scene &in, aiNode *root, const std::shared_ptr<Collection>& collection, ConversionData &conv_data) {
+void BlenderImporter::ParseSubCollection(const Blender::Scene &in, aiNode *root, std::shared_ptr<Collection> collection, ConversionData &conv_data) {
 
     std::deque<Object *> root_objects;
     // Count number of objects
@@ -942,7 +1024,7 @@ void BlenderImporter::ConvertMesh(const Scene & /*in*/, const Object * /*obj*/,
     // key is material number, value is the TextureUVMapping for the material
     typedef std::map<uint32_t, TextureUVMapping> MaterialTextureUVMappings;
     MaterialTextureUVMappings matTexUvMappings;
-    const uint32_t maxMat = static_cast<uint32_t>(mesh->mat.size());
+    const uint32_t maxMat = static_cast<const uint32_t>(mesh->mat.size());
     for (uint32_t m = 0; m < maxMat; ++m) {
         // get material by index
         const std::shared_ptr<Material> pMat = mesh->mat[m];
@@ -1293,55 +1375,4 @@ aiNode *BlenderImporter::ConvertNode(const Scene &in, const Object *obj, Convers
     return node.release();
 }
 
-BlenderImporter::StreamOrError BlenderImporter::ParseMagicToken(const std::string &pFile, IOSystem *pIOHandler) const {
-    std::shared_ptr<IOStream> stream(pIOHandler->Open(pFile, "rb"));
-    if (stream == nullptr) {
-        return {{}, {}, "Could not open file for reading"};
-    }
-
-    char magic[8] = { 0 };
-    stream->Read(magic, 7, 1);
-    if (strcmp(magic, Token) == 0) {
-        return {stream, {}, {}};
-    }
-
-    // Check for presence of the gzip header. If yes, assume it is a
-    // compressed blend file and try uncompressing it, else fail. This is to
-    // avoid uncompressing random files which our loader might end up with.
-#ifdef ASSIMP_BUILD_NO_COMPRESSED_BLEND
-    return {{}, {}, "BLENDER magic bytes are missing, is this file compressed (Assimp was built without decompression support)?"};
-#else
-    if (magic[0] != 0x1f || static_cast<uint8_t>(magic[1]) != 0x8b) {
-        return {{}, {}, "BLENDER magic bytes are missing, couldn't find GZIP header either"};
-    }
-
-    LogDebug("Found no BLENDER magic word but a GZIP header, might be a compressed file");
-    if (magic[2] != 8) {
-        return {{}, {}, "Unsupported GZIP compression method"};
-    }
-
-    // http://www.gzip.org/zlib/rfc-gzip.html#header-trailer
-    stream->Seek(0L, aiOrigin_SET);
-    std::shared_ptr<StreamReaderLE> reader = std::shared_ptr<StreamReaderLE>(new StreamReaderLE(stream));
-
-    size_t total = 0;
-    Compression compression;
-    auto uncompressed = std::make_shared<std::vector<char>>();
-    if (compression.open(Compression::Format::Binary, Compression::FlushMode::NoFlush, 16 + Compression::MaxWBits)) {
-        total = compression.decompress((unsigned char *)reader->GetPtr(), reader->GetRemainingSize(), *uncompressed);
-        compression.close();
-    }
-
-    // replace the input stream with a memory stream
-    stream = std::make_shared<MemoryIOStream>(reinterpret_cast<uint8_t *>(uncompressed->data()), total);
-
-    // .. and retry
-    stream->Read(magic, 7, 1);
-    if (strcmp(magic, Token) == 0) {
-        return {stream, uncompressed, {}};
-    }
-    return {{}, {}, "Found no BLENDER magic word in decompressed GZIP file"};
-#endif
-}
-
 #endif // ASSIMP_BUILD_NO_BLEND_IMPORTER

code/AssetLib/Blender/BlenderLoader.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2021, assimp team
 
 All rights reserved.
 
@@ -117,7 +117,7 @@ protected:
     void InternReadFile(const std::string &pFile, aiScene *pScene, IOSystem *pIOHandler) override;
     void ParseBlendFile(Blender::FileDatabase &out, std::shared_ptr<IOStream> stream);
     void ExtractScene(Blender::Scene &out, const Blender::FileDatabase &file);
-    void ParseSubCollection(const Blender::Scene &in, aiNode *root, const std::shared_ptr<Blender::Collection>& collection, Blender::ConversionData &conv_data);
+    void ParseSubCollection(const Blender::Scene &in, aiNode *root, std::shared_ptr<Blender::Collection> collection, Blender::ConversionData &conv_data);
     void ConvertBlendFile(aiScene *out, const Blender::Scene &in, const Blender::FileDatabase &file);
 
 private:
@@ -180,19 +180,6 @@ private:
             const Blender::MTex *tex,
             Blender::ConversionData &conv_data);
 
-    // TODO: Move to a std::variant, once c++17 is supported.
-    struct StreamOrError {
-        std::shared_ptr<IOStream> stream;
-        std::shared_ptr<std::vector<char>> input;
-        std::string error;
-    };
-
-    // Returns either a stream (and optional input data for the stream) or
-    // an error if it can't parse the magic token.
-    StreamOrError ParseMagicToken(
-            const std::string &pFile,
-            IOSystem *pIOHandler) const;
-
 private: // static stuff, mostly logging and error reporting.
     // --------------------
     static void CheckActualType(const Blender::ElemBase *dt,

code/AssetLib/Blender/BlenderModifier.cpp

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2021, assimp team
 
 
 All rights reserved.
@@ -71,6 +71,10 @@ static const fpCreateModifier creators[] = {
     nullptr // sentinel
 };
 
+// ------------------------------------------------------------------------------------------------
+struct SharedModifierData : ElemBase {
+    ModifierData modifier;
+};
 
 // ------------------------------------------------------------------------------------------------
 void BlenderModifierShowcase::ApplyModifiers(aiNode &out, ConversionData &conv_data, const Scene &in, const Object &orig_object) {
@@ -153,7 +157,6 @@ void BlenderModifier_Mirror ::DoIt(aiNode &out, ConversionData &conv_data, const
     // hijacking the ABI, see the big note in BlenderModifierShowcase::ApplyModifiers()
     const MirrorModifierData &mir = static_cast<const MirrorModifierData &>(orig_modifier);
     ai_assert(mir.modifier.type == ModifierData::eModifierType_Mirror);
-    std::shared_ptr<Object> mirror_ob = mir.mirror_ob.lock();
 
     conv_data.meshes->reserve(conv_data.meshes->size() + out.mNumMeshes);
 
@@ -168,8 +171,8 @@ void BlenderModifier_Mirror ::DoIt(aiNode &out, ConversionData &conv_data, const
         const float ys = mir.flag & MirrorModifierData::Flags_AXIS_Y ? -1.f : 1.f;
         const float zs = mir.flag & MirrorModifierData::Flags_AXIS_Z ? -1.f : 1.f;
 
-        if (mirror_ob) {
-            const aiVector3D center(mirror_ob->obmat[3][0], mirror_ob->obmat[3][1], mirror_ob->obmat[3][2]);
+        if (mir.mirror_ob) {
+            const aiVector3D center(mir.mirror_ob->obmat[3][0], mir.mirror_ob->obmat[3][1], mir.mirror_ob->obmat[3][2]);
             for (unsigned int j = 0; j < mesh->mNumVertices; ++j) {
                 aiVector3D &v = mesh->mVertices[j];
 

code/AssetLib/Blender/BlenderModifier.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2021, assimp team
 
 
 All rights reserved.
@@ -62,7 +62,9 @@ public:
     /**
      *  The class destructor, virtual.
      */
-    virtual ~BlenderModifier() = default;
+    virtual ~BlenderModifier() {
+        // empty
+    }
 
     // --------------------
     /**

code/AssetLib/Blender/BlenderScene.cpp

@@ -49,8 +49,8 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "BlenderDNA.h"
 #include "BlenderSceneGen.h"
 
-namespace Assimp {
-namespace Blender {
+using namespace Assimp;
+using namespace Assimp::Blender;
 
 //--------------------------------------------------------------------------------
 template <>
@@ -102,6 +102,10 @@ void Structure::Convert<CollectionObject>(
 
     ReadFieldPtr<ErrorPolicy_Fail>(dest.next, "*next", db);
     {
+        //std::shared_ptr<CollectionObject> prev;
+        //ReadFieldPtr<ErrorPolicy_Fail>(prev, "*prev", db);
+        //dest.prev = prev.get();
+
         std::shared_ptr<Object> ob;
         ReadFieldPtr<ErrorPolicy_Igno>(ob, "*ob", db);
         dest.ob = ob.get();
@@ -565,7 +569,7 @@ void Structure ::Convert<MVert>(
         const FileDatabase &db) const {
 
     ReadFieldArray<ErrorPolicy_Fail>(dest.co, "co", db);
-    ReadFieldArray<ErrorPolicy_Warn>(dest.no, "no", db);
+    ReadFieldArray<ErrorPolicy_Fail>(dest.no, "no", db);
     ReadField<ErrorPolicy_Igno>(dest.flag, "flag", db);
     //ReadField<ErrorPolicy_Warn>(dest.mat_nr,"mat_nr",db);
     ReadField<ErrorPolicy_Igno>(dest.bweight, "bweight", db);
@@ -620,9 +624,7 @@ void Structure ::Convert<ListBase>(
         const FileDatabase &db) const {
 
     ReadFieldPtr<ErrorPolicy_Igno>(dest.first, "*first", db);
-    std::shared_ptr<ElemBase> last;
-    ReadFieldPtr<ErrorPolicy_Igno>(last, "*last", db);
-    dest.last = last;
+    ReadFieldPtr<ErrorPolicy_Igno>(dest.last, "*last", db);
 
     db.reader->IncPtr(size);
 }
@@ -646,9 +648,7 @@ void Structure ::Convert<ModifierData>(
         const FileDatabase &db) const {
 
     ReadFieldPtr<ErrorPolicy_Warn>(dest.next, "*next", db);
-    std::shared_ptr<ElemBase> prev;
-    ReadFieldPtr<ErrorPolicy_Warn>(prev, "*prev", db);
-    dest.prev = prev;
+    ReadFieldPtr<ErrorPolicy_Warn>(dest.prev, "*prev", db);
     ReadField<ErrorPolicy_Igno>(dest.type, "type", db);
     ReadField<ErrorPolicy_Igno>(dest.mode, "mode", db);
     ReadFieldArray<ErrorPolicy_Igno>(dest.name, "name", db);
@@ -772,9 +772,7 @@ void Structure ::Convert<MirrorModifierData>(
     ReadField<ErrorPolicy_Igno>(dest.axis, "axis", db);
     ReadField<ErrorPolicy_Igno>(dest.flag, "flag", db);
     ReadField<ErrorPolicy_Igno>(dest.tolerance, "tolerance", db);
-    std::shared_ptr<Object> mirror_ob;
-    ReadFieldPtr<ErrorPolicy_Igno>(mirror_ob, "*mirror_ob", db);
-    dest.mirror_ob = mirror_ob;
+    ReadFieldPtr<ErrorPolicy_Igno>(dest.mirror_ob, "*mirror_ob", db);
 
     db.reader->IncPtr(size);
 }
@@ -835,9 +833,9 @@ void Structure::Convert<CustomDataLayer>(
     ReadField<ErrorPolicy_Fail>(dest.flag, "flag", db);
     ReadField<ErrorPolicy_Fail>(dest.active, "active", db);
     ReadField<ErrorPolicy_Fail>(dest.active_rnd, "active_rnd", db);
-    ReadField<ErrorPolicy_Warn>(dest.active_clone, "active_clone", db);
-    ReadField<ErrorPolicy_Warn>(dest.active_mask, "active_mask", db);
-    ReadField<ErrorPolicy_Warn>(dest.uid, "uid", db);
+    ReadField<ErrorPolicy_Fail>(dest.active_clone, "active_clone", db);
+    ReadField<ErrorPolicy_Fail>(dest.active_mask, "active_mask", db);
+    ReadField<ErrorPolicy_Fail>(dest.uid, "uid", db);
     ReadFieldArray<ErrorPolicy_Warn>(dest.name, "name", db);
     ReadCustomDataPtr<ErrorPolicy_Fail>(dest.data, dest.type, "*data", db);
 
@@ -887,7 +885,4 @@ void DNA::RegisterConverters() {
     converters["CollectionObject"] = DNA::FactoryPair(&Structure::Allocate<CollectionObject>, &Structure::Convert<CollectionObject>);
 }
 
-} // namespace Blender
-} //namespace Assimp
-
 #endif // ASSIMP_BUILD_NO_BLEND_IMPORTER

code/AssetLib/Blender/BlenderScene.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2021, assimp team
 
 
 All rights reserved.
@@ -124,7 +124,7 @@ struct ID : ElemBase {
 // -------------------------------------------------------------------------------
 struct ListBase : ElemBase {
     std::shared_ptr<ElemBase> first;
-    std::weak_ptr<ElemBase> last;
+    std::shared_ptr<ElemBase> last;
 };
 
 // -------------------------------------------------------------------------------
@@ -182,7 +182,7 @@ struct MVert : ElemBase {
     int bweight;
 
     MVert() :
-            flag(0), mat_nr(0), bweight(0) {}
+            ElemBase(), flag(0), mat_nr(0), bweight(0) {}
 };
 
 // -------------------------------------------------------------------------------
@@ -417,6 +417,7 @@ struct CustomDataLayer : ElemBase {
     std::shared_ptr<ElemBase> data; // must be converted to real type according type member
 
     CustomDataLayer() :
+            ElemBase(),
             type(0),
             offset(0),
             flag(0),
@@ -641,21 +642,14 @@ struct ModifierData : ElemBase {
     };
 
     std::shared_ptr<ElemBase> next WARN;
-    std::weak_ptr<ElemBase> prev WARN;
+    std::shared_ptr<ElemBase> prev WARN;
 
     int type, mode;
     char name[32];
 };
 
-
-// ------------------------------------------------------------------------------------------------
-struct SharedModifierData : ElemBase {
-    ModifierData modifier;
-};
-
-
 // -------------------------------------------------------------------------------
-struct SubsurfModifierData : SharedModifierData {
+struct SubsurfModifierData : ElemBase {
 
     enum Type {
 
@@ -668,6 +662,7 @@ struct SubsurfModifierData : SharedModifierData {
         FLAGS_SubsurfUV = 1 << 3
     };
 
+    ModifierData modifier FAIL;
     short subdivType WARN;
     short levels FAIL;
     short renderLevels;
@@ -675,7 +670,7 @@ struct SubsurfModifierData : SharedModifierData {
 };
 
 // -------------------------------------------------------------------------------
-struct MirrorModifierData : SharedModifierData {
+struct MirrorModifierData : ElemBase {
 
     enum Flags {
         Flags_CLIPPING = 1 << 0,
@@ -687,9 +682,11 @@ struct MirrorModifierData : SharedModifierData {
         Flags_VGROUP = 1 << 6
     };
 
+    ModifierData modifier FAIL;
+
     short axis, flag;
     float tolerance;
-    std::weak_ptr<Object> mirror_ob;
+    std::shared_ptr<Object> mirror_ob;
 };
 
 // -------------------------------------------------------------------------------
@@ -728,7 +725,7 @@ struct Object : ElemBase {
     ListBase modifiers;
 
     Object() :
-            type(Type_EMPTY), parent(nullptr) {
+            ElemBase(), type(Type_EMPTY), parent(nullptr), track(), proxy(), proxy_from(), data() {
         // empty
     }
 };
@@ -740,7 +737,8 @@ struct Base : ElemBase {
     std::shared_ptr<Object> object WARN;
 
     Base() :
-            prev(nullptr) {
+            ElemBase(), prev(nullptr), next(), object() {
+        // empty
         // empty
     }
 };
@@ -756,7 +754,10 @@ struct Scene : ElemBase {
 
     ListBase base;
 
-    Scene() = default;
+    Scene() :
+            ElemBase(), camera(), world(), basact(), master_collection() {
+        // empty
+    }
 };
 
 // -------------------------------------------------------------------------------
@@ -786,7 +787,10 @@ struct Image : ElemBase {
 
     short gen_x, gen_y, gen_type;
 
-    Image() = default;
+    Image() :
+            ElemBase() {
+        // empty
+    }
 };
 
 // -------------------------------------------------------------------------------
@@ -876,7 +880,7 @@ struct Tex : ElemBase {
     //char use_nodes;
 
     Tex() :
-            imaflag(ImageFlags_INTERPOL), type(Type_CLOUDS) {
+            ElemBase(), imaflag(ImageFlags_INTERPOL), type(Type_CLOUDS), ima() {
         // empty
     }
 };
@@ -968,7 +972,10 @@ struct MTex : ElemBase {
     //float shadowfac;
     //float zenupfac, zendownfac, blendfac;
 
-    MTex() = default;
+    MTex() :
+            ElemBase() {
+        // empty
+    }
 };
 
 } // namespace Blender

code/AssetLib/Blender/BlenderTessellator.cpp

@@ -2,7 +2,8 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2021, assimp team
+
 
 All rights reserved.
 
@@ -39,8 +40,10 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ----------------------------------------------------------------------
 */
 
-/// @file  BlenderTessellator.cpp
-/// @brief A simple tessellation wrapper
+/** @file  BlenderTessellator.cpp
+ *  @brief A simple tessellation wrapper
+ */
+
 
 #ifndef ASSIMP_BUILD_NO_BLEND_IMPORTER
 
@@ -59,7 +62,8 @@ namspace Assimp
 {
     template< > const char* LogFunctions< BlenderTessellatorGL >::Prefix()
     {
-        return "BLEND_TESS_GL: ";
+        static auto prefix = "BLEND_TESS_GL: ";
+        return prefix;
     }
 }
 
@@ -77,7 +81,9 @@ BlenderTessellatorGL::BlenderTessellatorGL( BlenderBMeshConverter& converter ):
 }
 
 // ------------------------------------------------------------------------------------------------
-BlenderTessellatorGL::~BlenderTessellatorGL() = default;
+BlenderTessellatorGL::~BlenderTessellatorGL( )
+{
+}
 
 // ------------------------------------------------------------------------------------------------
 void BlenderTessellatorGL::Tessellate( const MLoop* polyLoop, int vertexCount, const std::vector< MVert >& vertices )
@@ -253,7 +259,8 @@ namespace Assimp
 {
     template< > const char* LogFunctions< BlenderTessellatorP2T >::Prefix()
     {
-        return "BLEND_TESS_P2T: ";
+        static auto prefix = "BLEND_TESS_P2T: ";
+        return prefix;
     }
 }
 
@@ -267,7 +274,9 @@ BlenderTessellatorP2T::BlenderTessellatorP2T( BlenderBMeshConverter& converter )
 }
 
 // ------------------------------------------------------------------------------------------------
-
+BlenderTessellatorP2T::~BlenderTessellatorP2T( )
+{
+}
 
 // ------------------------------------------------------------------------------------------------
 void BlenderTessellatorP2T::Tessellate( const MLoop* polyLoop, int vertexCount, const std::vector< MVert >& vertices )

code/AssetLib/Blender/BlenderTessellator.h

@@ -2,7 +2,8 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2021, assimp team
+
 
 All rights reserved.
 
@@ -143,7 +144,11 @@ namespace Assimp
 
 #if ASSIMP_BLEND_WITH_POLY_2_TRI
 
-#include "contrib/poly2tri/poly2tri/poly2tri.h"
+#ifdef ASSIMP_USE_HUNTER
+#  include <poly2tri/poly2tri.h>
+#else
+#  include "../contrib/poly2tri/poly2tri/poly2tri.h"
+#endif
 
 namespace Assimp
 {
@@ -181,7 +186,7 @@ namespace Assimp
     {
     public:
         BlenderTessellatorP2T( BlenderBMeshConverter& converter );
-        ~BlenderTessellatorP2T( ) = default;
+        ~BlenderTessellatorP2T( );
 
         void Tessellate( const Blender::MLoop* polyLoop, int vertexCount, const std::vector< Blender::MVert >& vertices );
 

code/AssetLib/C4D/C4DImporter.cpp

@@ -86,7 +86,8 @@ void GetWriterInfo(int &id, String &appname) {
 
 namespace Assimp {
     template<> const char* LogFunctions<C4DImporter>::Prefix() {
-        return "C4D: ";
+        static auto prefix = "C4D: ";
+        return prefix;
     }
 }
 
@@ -105,13 +106,7 @@ static const aiImporterDesc desc = {
 
 
 // ------------------------------------------------------------------------------------------------
-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;

code/AssetLib/COB/COBLoader.cpp

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2021, assimp team
 
 All rights reserved.
 
@@ -91,17 +91,29 @@ static const aiImporterDesc desc = {
 
 // ------------------------------------------------------------------------------------------------
 // Constructor to be privately used by Importer
-COBImporter::COBImporter() = default;
+COBImporter::COBImporter() {
+    // empty
+}
 
 // ------------------------------------------------------------------------------------------------
 // Destructor, private as well
-COBImporter::~COBImporter() = default;
+COBImporter::~COBImporter() {
+    // empty
+}
 
 // ------------------------------------------------------------------------------------------------
 // Returns whether the class can handle the format of the given file.
-bool COBImporter::CanRead(const std::string &pFile, IOSystem *pIOHandler, bool /*checkSig*/) const {
-    static const char *tokens[] = { "Caligary" };
-    return SearchFileHeaderForToken(pIOHandler, pFile, tokens, AI_COUNT_OF(tokens));
+bool COBImporter::CanRead(const std::string &pFile, IOSystem *pIOHandler, bool checkSig) const {
+    const std::string &extension = GetExtension(pFile);
+    if (extension == "cob" || extension == "scn" || extension == "COB" || extension == "SCN") {
+        return true;
+    }
+
+    else if ((!extension.length() || checkSig) && pIOHandler) {
+        static const char * const tokens[] = { "Caligary" };
+        return SearchFileHeaderForToken(pIOHandler, pFile, tokens, 1);
+    }
+    return false;
 }
 
 // ------------------------------------------------------------------------------------------------
@@ -158,7 +170,7 @@ void COBImporter::InternReadFile(const std::string &pFile, aiScene *pScene, IOSy
     // sort faces by material indices
     for (std::shared_ptr<Node> &n : scene.nodes) {
         if (n->type == Node::TYPE_MESH) {
-            Mesh &mesh = (Mesh &)(*n);
+            Mesh &mesh = (Mesh &)(*n.get());
             for (Face &f : mesh.faces) {
                 mesh.temp_map[f.material].push_back(&f);
             }
@@ -168,7 +180,7 @@ void COBImporter::InternReadFile(const std::string &pFile, aiScene *pScene, IOSy
     // count meshes
     for (std::shared_ptr<Node> &n : scene.nodes) {
         if (n->type == Node::TYPE_MESH) {
-            Mesh &mesh = (Mesh &)(*n);
+            Mesh &mesh = (Mesh &)(*n.get());
             if (mesh.vertex_positions.size() && mesh.texture_coords.size()) {
                 pScene->mNumMeshes += static_cast<unsigned int>(mesh.temp_map.size());
             }
@@ -211,7 +223,7 @@ void COBImporter::InternReadFile(const std::string &pFile, aiScene *pScene, IOSy
         }
     }
 
-    pScene->mRootNode = BuildNodes(*root, scene, pScene);
+    pScene->mRootNode = BuildNodes(*root.get(), scene, pScene);
     //flip normals after import
     FlipWindingOrderProcess flip;
     flip.Execute(pScene);
@@ -518,7 +530,7 @@ void COBImporter::ReadMat1_Ascii(Scene &out, LineSplitter &splitter, const Chunk
         return;
     }
 
-    out.materials.emplace_back();
+    out.materials.push_back(Material());
     Material &mat = out.materials.back();
     mat = nfo;
 
@@ -749,7 +761,7 @@ void COBImporter::ReadPolH_Ascii(Scene &out, LineSplitter &splitter, const Chunk
                     ThrowException("Expected Face line");
                 }
 
-                msh.faces.emplace_back();
+                msh.faces.push_back(Face());
                 Face &face = msh.faces.back();
 
                 face.indices.resize(strtoul10(splitter[2]));
@@ -868,7 +880,7 @@ void COBImporter::ReadBinaryFile(Scene &out, StreamReaderLE *reader) {
         return;
     }
 
-    while (true) {
+    while (1) {
         std::string type;
         type += reader->GetI1();
         type += reader->GetI1();
@@ -952,7 +964,7 @@ void COBImporter::ReadPolH_Binary(COB::Scene &out, StreamReaderLE &reader, const
                 ThrowException(format("A hole is the first entity in the `PolH` chunk with id ") << nfo.id);
             }
         } else
-            msh.faces.emplace_back();
+            msh.faces.push_back(Face());
         Face &f = msh.faces.back();
 
         const size_t num = reader.GetI2();
@@ -964,7 +976,7 @@ void COBImporter::ReadPolH_Binary(COB::Scene &out, StreamReaderLE &reader, const
         }
 
         for (size_t x = 0; x < num; ++x) {
-            f.indices.emplace_back();
+            f.indices.push_back(VertexIndex());
 
             VertexIndex &v = f.indices.back();
             v.pos_idx = reader.GetI4();
@@ -1004,7 +1016,7 @@ void COBImporter::ReadMat1_Binary(COB::Scene &out, StreamReaderLE &reader, const
 
     const chunk_guard cn(nfo, reader);
 
-    out.materials.emplace_back();
+    out.materials.push_back(Material());
     Material &mat = out.materials.back();
     mat = nfo;
 
@@ -1054,7 +1066,7 @@ void COBImporter::ReadMat1_Binary(COB::Scene &out, StreamReaderLE &reader, const
     id[0] = reader.GetI1(), id[1] = reader.GetI1();
 
     if (id[0] == 'e' && id[1] == ':') {
-        mat.tex_env = std::make_shared<Texture>();
+        mat.tex_env.reset(new Texture());
 
         reader.GetI1();
         ReadString_Binary(mat.tex_env->path, reader);
@@ -1064,7 +1076,7 @@ void COBImporter::ReadMat1_Binary(COB::Scene &out, StreamReaderLE &reader, const
     }
 
     if (id[0] == 't' && id[1] == ':') {
-        mat.tex_color = std::make_shared<Texture>();
+        mat.tex_color.reset(new Texture());
 
         reader.GetI1();
         ReadString_Binary(mat.tex_color->path, reader);
@@ -1080,7 +1092,7 @@ void COBImporter::ReadMat1_Binary(COB::Scene &out, StreamReaderLE &reader, const
     }
 
     if (id[0] == 'b' && id[1] == ':') {
-        mat.tex_bump = std::make_shared<Texture>();
+        mat.tex_bump.reset(new Texture());
 
         reader.GetI1();
         ReadString_Binary(mat.tex_bump->path, reader);

code/AssetLib/COB/COBLoader.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2021, assimp team
 
 
 All rights reserved.

code/AssetLib/COB/COBScene.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2021, assimp team
 
 All rights reserved.
 
@@ -107,7 +107,7 @@ struct Node : public ChunkInfo
         TYPE_MESH,TYPE_GROUP,TYPE_LIGHT,TYPE_CAMERA,TYPE_BONE
     };
 
-    virtual ~Node() = default;
+    virtual ~Node() {}
     Node(Type type) : type(type), unit_scale(1.f){}
 
     Type type;

code/AssetLib/CSM/CSMLoader.cpp

@@ -3,7 +3,7 @@
 Open Asset Import Library (assimp)
 ---------------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2021, assimp team
 
 
 
@@ -85,14 +85,24 @@ CSMImporter::CSMImporter()
 
 // ------------------------------------------------------------------------------------------------
 // Destructor, private as well
-CSMImporter::~CSMImporter() = default;
+CSMImporter::~CSMImporter()
+{}
 
 // ------------------------------------------------------------------------------------------------
 // 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[] = {"$Filename"};
-    return SearchFileHeaderForToken(pIOHandler,pFile,tokens,AI_COUNT_OF(tokens));
+    // check file extension
+    const std::string extension = GetExtension(pFile);
+
+    if( extension == "csm")
+        return true;
+
+    if ((checkSig || !extension.length()) && pIOHandler) {
+        static const char * const tokens[] = {"$Filename"};
+        return SearchFileHeaderForToken(pIOHandler,pFile,tokens,1);
+    }
+    return false;
 }
 
 // ------------------------------------------------------------------------------------------------
@@ -117,7 +127,7 @@ void CSMImporter::InternReadFile( const std::string& pFile,
     std::unique_ptr<IOStream> file( pIOHandler->Open( pFile, "rb"));
 
     // Check whether we can read from the file
-    if (file == nullptr) {
+    if( file.get() == nullptr) {
         throw DeadlyImportError( "Failed to open CSM file ", pFile, ".");
     }
 
@@ -130,7 +140,7 @@ void CSMImporter::InternReadFile( const std::string& pFile,
     int first = 0, last = 0x00ffffff;
 
     // now process the file and look out for '$' sections
-    while (true) {
+    while (1)   {
         SkipSpaces(&buffer);
         if ('\0' == *buffer)
             break;
@@ -154,7 +164,7 @@ void CSMImporter::InternReadFile( const std::string& pFile,
             else if (TokenMatchI(buffer,"order",5)) {
                 std::vector< aiNodeAnim* > anims_temp;
                 anims_temp.reserve(30);
-                while (true) {
+                while (1)   {
                     SkipSpaces(&buffer);
                     if (IsLineEnd(*buffer) && SkipSpacesAndLineEnd(&buffer) && *buffer == '$')
                         break; // next section
@@ -196,7 +206,7 @@ void CSMImporter::InternReadFile( const std::string& pFile,
                 unsigned int filled = 0;
 
                 // Now read all point data.
-                while (true) {
+                while (1)   {
                     SkipSpaces(&buffer);
                     if (IsLineEnd(*buffer) && (!SkipSpacesAndLineEnd(&buffer) || *buffer == '$'))   {
                         break; // next section

code/AssetLib/CSM/CSMLoader.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2021, 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) 2006-2021, assimp team
 
 
 All rights reserved.
@@ -91,7 +91,7 @@ void ExportSceneCollada(const char *pFile, IOSystem *pIOSystem, const aiScene *p
 // Encodes a string into a valid XML ID using the xsd:ID schema qualifications.
 static const std::string XMLIDEncode(const std::string &name) {
     const char XML_ID_CHARS[] = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz_-.";
-    const unsigned int XML_ID_CHARS_COUNT = sizeof(XML_ID_CHARS) / sizeof(char) - 1;
+    const unsigned int XML_ID_CHARS_COUNT = sizeof(XML_ID_CHARS) / sizeof(char);
 
     if (name.length() == 0) {
         return name;
@@ -154,7 +154,8 @@ ColladaExporter::ColladaExporter(const aiScene *pScene, IOSystem *pIOSystem, con
 
 // ------------------------------------------------------------------------------------------------
 // Destructor
-ColladaExporter::~ColladaExporter() = default;
+ColladaExporter::~ColladaExporter() {
+}
 
 // ------------------------------------------------------------------------------------------------
 // Starts writing the contents
@@ -246,7 +247,7 @@ void ColladaExporter::WriteHeader() {
     }
 
     // Assimp root nodes can have meshes, Collada Scenes cannot
-    if (mScene->mRootNode->mNumChildren == 0 || mScene->mRootNode->mMeshes != nullptr) {
+    if (mScene->mRootNode->mNumChildren == 0 || mScene->mRootNode->mMeshes != 0) {
         mAdd_root_node = true;
     }
 
@@ -448,7 +449,7 @@ void ColladaExporter::WriteLight(size_t pIndex) {
     PushTag();
     switch (light->mType) {
     case aiLightSource_AMBIENT:
-        WriteAmbientLight(light);
+        WriteAmbienttLight(light);
         break;
     case aiLightSource_DIRECTIONAL:
         WriteDirectionalLight(light);
@@ -543,7 +544,7 @@ void ColladaExporter::WriteSpotLight(const aiLight *const light) {
     mOutput << startstr << "</spot>" << endstr;
 }
 
-void ColladaExporter::WriteAmbientLight(const aiLight *const light) {
+void ColladaExporter::WriteAmbienttLight(const aiLight *const light) {
 
     const aiColor3D &color = light->mColorAmbient;
     mOutput << startstr << "<ambient>" << endstr;
@@ -1329,9 +1330,9 @@ void ColladaExporter::WriteAnimationLibrary(size_t pIndex) {
             std::vector<std::string> names;
             for (size_t i = 0; i < nodeAnim->mNumPositionKeys; ++i) {
                 if (nodeAnim->mPreState == aiAnimBehaviour_DEFAULT || nodeAnim->mPreState == aiAnimBehaviour_LINEAR || nodeAnim->mPreState == aiAnimBehaviour_REPEAT) {
-                    names.emplace_back("LINEAR");
+                    names.push_back("LINEAR");
                 } else if (nodeAnim->mPostState == aiAnimBehaviour_CONSTANT) {
-                    names.emplace_back("STEP");
+                    names.push_back("STEP");
                 }
             }
 

code/AssetLib/Collada/ColladaExporter.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2021, assimp team
 
 
 All rights reserved.
@@ -101,7 +101,7 @@ protected:
     void WritePointLight(const aiLight *const light);
     void WriteDirectionalLight(const aiLight *const light);
     void WriteSpotLight(const aiLight *const light);
-    void WriteAmbientLight(const aiLight *const light);
+    void WriteAmbienttLight(const aiLight *const light);
 
     /// Writes the controller library
     void WriteControllerLibrary();
@@ -233,7 +233,7 @@ public:
         Surface ambient, diffuse, specular, emissive, reflective, transparent, normal;
         Property shininess, transparency, index_refraction;
 
-        Material() = default;
+        Material() {}
     };
 
     std::map<unsigned int, std::string> textures;

code/AssetLib/Collada/ColladaHelper.cpp

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2021, 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) 2006-2021, assimp team
 
 All rights reserved.
 
@@ -621,11 +621,6 @@ struct Animation {
 
         for (std::vector<Animation *>::iterator it = pParent->mSubAnims.begin(); it != pParent->mSubAnims.end();) {
             Animation *anim = *it;
-            // Assign the first animation name to the parent if empty.
-            // This prevents the animation name from being lost when animations are combined
-            if (mName.empty()) {
-              mName = anim->mName;
-            }
             CombineSingleChannelAnimationsRecursively(anim);
 
             if (childrenAnimationsHaveDifferentChannels && anim->mChannels.size() == 1 &&
@@ -666,7 +661,7 @@ struct ChannelEntry {
     const Collada::Accessor *mTimeAccessor; ///> Collada accessor to the time values
     const Collada::Data *mTimeData; ///> Source data array for the time values
     const Collada::Accessor *mValueAccessor; ///> Collada accessor to the key value values
-    const Collada::Data *mValueData; ///> Source data array for the key value values
+    const Collada::Data *mValueData; ///> Source datat array for the key value values
 
     ChannelEntry() :
             mChannel(),

code/AssetLib/Collada/ColladaLoader.cpp

@@ -3,7 +3,7 @@
 Open Asset Import Library (assimp)
 ---------------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2021, assimp team
 
 All rights reserved.
 
@@ -92,10 +92,17 @@ inline void AddNodeMetaData(aiNode *node, const std::string &key, const T &value
 // ------------------------------------------------------------------------------------------------
 // Constructor to be privately used by Importer
 ColladaLoader::ColladaLoader() :
+        mFileName(),
+        mMeshIndexByID(),
+        mMaterialIndexByName(),
+        mMeshes(),
+        newMats(),
+        mCameras(),
+        mLights(),
+        mTextures(),
+        mAnims(),
         noSkeletonMesh(false),
-        removeEmptyBones(false),
         ignoreUpDirection(false),
-        ignoreUnitSize(false),
         useColladaName(false),
         mNodeNameCounter(0) {
     // empty
@@ -103,27 +110,49 @@ ColladaLoader::ColladaLoader() :
 
 // ------------------------------------------------------------------------------------------------
 // Destructor, private as well
-ColladaLoader::~ColladaLoader() = default;
+ColladaLoader::~ColladaLoader() {
+    // empty
+}
 
 // ------------------------------------------------------------------------------------------------
 // Returns whether the class can handle the format of the given file.
-bool ColladaLoader::CanRead(const std::string &pFile, IOSystem *pIOHandler, bool /*checkSig*/) const {
-    // Look for a DAE file inside, but don't extract it
-    ZipArchiveIOSystem zip_archive(pIOHandler, pFile);
-    if (zip_archive.isOpen()) {
-        return !ColladaParser::ReadZaeManifest(zip_archive).empty();
+bool ColladaLoader::CanRead(const std::string &pFile, IOSystem *pIOHandler, bool checkSig) const {
+    // check file extension
+    const std::string extension = GetExtension(pFile);
+    const bool readSig = checkSig && (pIOHandler != nullptr);
+    if (!readSig) {
+        if (extension == "dae" || extension == "zae") {
+            return true;
+        }
+    } else {
+        // Look for a DAE file inside, but don't extract it
+        ZipArchiveIOSystem zip_archive(pIOHandler, pFile);
+        if (zip_archive.isOpen()) {
+            return !ColladaParser::ReadZaeManifest(zip_archive).empty();
+        }
     }
 
-    static const char *tokens[] = { "<collada" };
-    return SearchFileHeaderForToken(pIOHandler, pFile, tokens, AI_COUNT_OF(tokens));
+    // XML - too generic, we need to open the file and search for typical keywords
+    if (extension == "xml" || !extension.length() || checkSig) {
+        //  If CanRead() is called in order to check whether we
+        //  support a specific file extension in general pIOHandler
+        //  might be nullptr and it's our duty to return true here.
+        if (nullptr == pIOHandler) {
+            return true;
+        }
+        static const char * const tokens[] = {
+            "<collada"
+        };
+        return SearchFileHeaderForToken(pIOHandler, pFile, tokens, 1);
+    }
+
+    return false;
 }
 
 // ------------------------------------------------------------------------------------------------
 void ColladaLoader::SetupProperties(const Importer *pImp) {
     noSkeletonMesh = pImp->GetPropertyInteger(AI_CONFIG_IMPORT_NO_SKELETON_MESHES, 0) != 0;
-    removeEmptyBones = pImp->GetPropertyInteger(AI_CONFIG_IMPORT_REMOVE_EMPTY_BONES, true) != 0;
     ignoreUpDirection = pImp->GetPropertyInteger(AI_CONFIG_IMPORT_COLLADA_IGNORE_UP_DIRECTION, 0) != 0;
-    ignoreUnitSize = pImp->GetPropertyInteger(AI_CONFIG_IMPORT_COLLADA_IGNORE_UNIT_SIZE, 0) != 0;
     useColladaName = pImp->GetPropertyInteger(AI_CONFIG_IMPORT_COLLADA_USE_COLLADA_NAMES, 0) != 0;
 }
 
@@ -172,15 +201,12 @@ void ColladaLoader::InternReadFile(const std::string &pFile, aiScene *pScene, IO
     // ... then fill the materials with the now adjusted settings
     FillMaterials(parser, pScene);
 
-    if (!ignoreUnitSize) {
-        // Apply unit-size scale calculation
-        pScene->mRootNode->mTransformation *= aiMatrix4x4(
-                parser.mUnitSize, 0, 0, 0,
-                0, parser.mUnitSize, 0, 0,
-                0, 0, parser.mUnitSize, 0,
-                0, 0, 0, 1);
-    }
-    
+    // Apply unit-size scale calculation
+
+    pScene->mRootNode->mTransformation *= aiMatrix4x4(parser.mUnitSize, 0, 0, 0,
+            0, parser.mUnitSize, 0, 0,
+            0, 0, parser.mUnitSize, 0,
+            0, 0, 0, 1);
     if (!ignoreUpDirection) {
         // Convert to Y_UP, if different orientation
         if (parser.mUpDirection == ColladaParser::UP_X) {
@@ -353,9 +379,9 @@ void ColladaLoader::BuildLightsForNode(const ColladaParser &pParser, const Node
             out->mAngleInnerCone = AI_DEG_TO_RAD(srcLight->mFalloffAngle);
 
             // ... some extension magic.
-            if (srcLight->mOuterAngle >= ASSIMP_COLLADA_LIGHT_ANGLE_NOT_SET * (1 - ai_epsilon)) {
+            if (srcLight->mOuterAngle >= ASSIMP_COLLADA_LIGHT_ANGLE_NOT_SET * (1 - 1e-6f)) {
                 // ... some deprecation magic.
-                if (srcLight->mPenumbraAngle >= ASSIMP_COLLADA_LIGHT_ANGLE_NOT_SET * (1 - ai_epsilon)) {
+                if (srcLight->mPenumbraAngle >= ASSIMP_COLLADA_LIGHT_ANGLE_NOT_SET * (1 - 1e-6f)) {
                     // Need to rely on falloff_exponent. I don't know how to interpret it, so I need to guess ....
                     // epsilon chosen to be 0.1
                     float f = 1.0f;
@@ -794,10 +820,9 @@ aiMesh *ColladaLoader::CreateMesh(const ColladaParser &pParser, const Mesh *pSrc
         // count the number of bones which influence vertices of the current submesh
         size_t numRemainingBones = 0;
         for (const auto & dstBone : dstBones) {
-            if (dstBone.empty() && removeEmptyBones) {
-                continue;
+            if (!dstBone.empty()) {
+                ++numRemainingBones;
             }
-            ++numRemainingBones;
         }
 
         // create bone array and copy bone weights one by one
@@ -806,7 +831,7 @@ aiMesh *ColladaLoader::CreateMesh(const ColladaParser &pParser, const Mesh *pSrc
         size_t boneCount = 0;
         for (size_t a = 0; a < numBones; ++a) {
             // omit bones without weights
-            if (dstBones[a].empty() && removeEmptyBones) {
+            if (dstBones[a].empty()) {
                 continue;
             }
 
@@ -1062,7 +1087,7 @@ void insertMorphTimeValue(std::vector<MorphTimeValues> &values, float time, floa
         return;
     }
     for (unsigned int i = 0; i < values.size(); i++) {
-        if (std::abs(time - values[i].mTime) < ai_epsilon) {
+        if (std::abs(time - values[i].mTime) < 1e-6f) {
             values[i].mKeys.push_back(k);
             return;
         } else if (time > values[i].mTime && time < values[i + 1].mTime) {
@@ -1260,12 +1285,12 @@ void ColladaLoader::CreateAnimation(aiScene *pScene, const ColladaParser &pParse
             // now for every unique point in time, find or interpolate the key values for that time
             // and apply them to the transform chain. Then the node's present transformation can be calculated.
             ai_real time = startTime;
-            while (true) {
+            while (1) {
                 for (ChannelEntry & e : entries) {
                     // find the keyframe behind the current point in time
                     size_t pos = 0;
                     ai_real postTime = 0.0;
-                    while (true) {
+                    while (1) {
                         if (pos >= e.mTimeAccessor->mCount) {
                             break;
                         }
@@ -1519,7 +1544,7 @@ void ColladaLoader::AddTexture(aiMaterial &mat,
         map = -1;
         for (std::string::const_iterator it = sampler.mUVChannel.begin(); it != sampler.mUVChannel.end(); ++it) {
             if (IsNumeric(*it)) {
-                map = strtoul10(&(*it));
+                map = strtoul10(&(*it));        
                 break;
             }
         }
@@ -1676,7 +1701,7 @@ aiString ColladaLoader::FindFilenameForEffectTexture(const ColladaParser &pParse
 
     // recurse through the param references until we end up at an image
     std::string name = pName;
-    while (true) {
+    while (1) {
         // the given string is a param entry. Find it
         Effect::ParamLibrary::const_iterator it = pEffect.mParams.find(name);
         // if not found, we're at the end of the recursion. The resulting string should be the image ID

code/AssetLib/Collada/ColladaLoader.h

@@ -4,7 +4,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2021, assimp team
 
 
 All rights reserved.
@@ -237,9 +237,7 @@ protected:
     std::vector<aiAnimation *> mAnims;
 
     bool noSkeletonMesh;
-    bool removeEmptyBones;
     bool ignoreUpDirection;
-    bool ignoreUnitSize;
     bool useColladaName;
 
     /** Used by FindNameForNode() to generate unique node names */

code/AssetLib/Collada/ColladaParser.cpp

@@ -3,7 +3,7 @@
 Open Asset Import Library (assimp)
 ---------------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2021, assimp team
 
 All rights reserved.
 
@@ -55,7 +55,6 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include <assimp/DefaultLogger.hpp>
 #include <assimp/IOSystem.hpp>
 #include <memory>
-#include <utility>
 
 using namespace Assimp;
 using namespace Assimp::Collada;
@@ -68,7 +67,7 @@ static void ReportWarning(const char *msg, ...) {
     va_start(args, msg);
 
     char szBuffer[3000];
-    const int iLen = vsnprintf(szBuffer, sizeof(szBuffer), msg, args);
+    const int iLen = vsprintf(szBuffer, msg, args);
     ai_assert(iLen > 0);
 
     va_end(args);
@@ -145,7 +144,7 @@ ColladaParser::ColladaParser(IOSystem *pIOHandler, const std::string &pFile) :
     } else {
         // attempt to open the file directly
         daefile.reset(pIOHandler->Open(pFile));
-        if (daefile == nullptr) {
+        if (daefile.get() == nullptr) {
             throw DeadlyImportError("Failed to open file '", pFile, "'.");
         }
     }
@@ -332,16 +331,7 @@ void ColladaParser::ReadAssetInfo(XmlNode &node) {
         const std::string &currentName = currentNode.name();
         if (currentName == "unit") {
             mUnitSize = 1.f;
-            std::string tUnitSizeString;
-            if (XmlParser::getStdStrAttribute(currentNode, "meter", tUnitSizeString)) {
-                try {
-                    fast_atoreal_move<ai_real>(tUnitSizeString.data(), mUnitSize);
-                } catch (const DeadlyImportError& die) {
-                    std::string warning("Collada: Failed to parse meter parameter to real number. Exception:\n");
-                    warning.append(die.what());
-                    ASSIMP_LOG_WARN(warning.data());
-                }
-            }
+            XmlParser::getRealAttribute(currentNode, "meter", mUnitSize);
         } else if (currentName == "up_axis") {
             std::string v;
             if (!XmlParser::getValueAsString(currentNode, v)) {
@@ -759,10 +749,9 @@ void ColladaParser::ReadControllerWeights(XmlNode &node, Collada::Controller &pC
             XmlParser::getValueAsString(currentNode, stdText);
             const char *text = stdText.c_str();
             for (std::vector<std::pair<size_t, size_t>>::iterator it = pController.mWeights.begin(); it != pController.mWeights.end(); ++it) {
-                if (text == nullptr) {
+                if (text == 0) {
                     throw DeadlyImportError("Out of data while reading <vertex_weights>");
                 }
-                SkipSpacesAndLineEnd(&text);
                 it->first = strtoul10(text, &text);
                 SkipSpacesAndLineEnd(&text);
                 if (*text == 0) {
@@ -1618,7 +1607,6 @@ void ColladaParser::ReadIndexData(XmlNode &node, Mesh &pMesh) {
                     XmlParser::getValueAsString(currentNode, v);
                     const char *content = v.c_str();
                     vcount.reserve(numPrimitives);
-                    SkipSpacesAndLineEnd(&content);
                     for (unsigned int a = 0; a < numPrimitives; a++) {
                         if (*content == 0) {
                             throw DeadlyImportError("Expected more values while reading <vcount> contents.");
@@ -1855,6 +1843,7 @@ size_t ColladaParser::ReadPrimitives(XmlNode &node, Mesh &pMesh, std::vector<Inp
         default:
             // LineStrip is not supported due to expected index unmangling
             throw DeadlyImportError("Unsupported primitive type.");
+            break;
         }
 
         // store the face size to later reconstruct the face from
@@ -1930,7 +1919,7 @@ void ColladaParser::ExtractDataObjectFromChannel(const InputChannel &pInput, siz
     switch (pInput.mType) {
     case IT_Position: // ignore all position streams except 0 - there can be only one position
         if (pInput.mIndex == 0) {
-            pMesh.mPositions.emplace_back(obj[0], obj[1], obj[2]);
+            pMesh.mPositions.push_back(aiVector3D(obj[0], obj[1], obj[2]));
         } else {
             ASSIMP_LOG_ERROR("Collada: just one vertex position stream supported");
         }
@@ -1942,7 +1931,7 @@ void ColladaParser::ExtractDataObjectFromChannel(const InputChannel &pInput, siz
 
         // ignore all normal streams except 0 - there can be only one normal
         if (pInput.mIndex == 0) {
-            pMesh.mNormals.emplace_back(obj[0], obj[1], obj[2]);
+            pMesh.mNormals.push_back(aiVector3D(obj[0], obj[1], obj[2]));
         } else {
             ASSIMP_LOG_ERROR("Collada: just one vertex normal stream supported");
         }
@@ -1954,7 +1943,7 @@ void ColladaParser::ExtractDataObjectFromChannel(const InputChannel &pInput, siz
 
         // ignore all tangent streams except 0 - there can be only one tangent
         if (pInput.mIndex == 0) {
-            pMesh.mTangents.emplace_back(obj[0], obj[1], obj[2]);
+            pMesh.mTangents.push_back(aiVector3D(obj[0], obj[1], obj[2]));
         } else {
             ASSIMP_LOG_ERROR("Collada: just one vertex tangent stream supported");
         }
@@ -1967,7 +1956,7 @@ void ColladaParser::ExtractDataObjectFromChannel(const InputChannel &pInput, siz
 
         // ignore all bitangent streams except 0 - there can be only one bitangent
         if (pInput.mIndex == 0) {
-            pMesh.mBitangents.emplace_back(obj[0], obj[1], obj[2]);
+            pMesh.mBitangents.push_back(aiVector3D(obj[0], obj[1], obj[2]));
         } else {
             ASSIMP_LOG_ERROR("Collada: just one vertex bitangent stream supported");
         }
@@ -1980,7 +1969,7 @@ void ColladaParser::ExtractDataObjectFromChannel(const InputChannel &pInput, siz
                 pMesh.mTexCoords[pInput.mIndex].insert(pMesh.mTexCoords[pInput.mIndex].end(),
                         pMesh.mPositions.size() - pMesh.mTexCoords[pInput.mIndex].size() - 1, aiVector3D(0, 0, 0));
 
-            pMesh.mTexCoords[pInput.mIndex].emplace_back(obj[0], obj[1], obj[2]);
+            pMesh.mTexCoords[pInput.mIndex].push_back(aiVector3D(obj[0], obj[1], obj[2]));
             if (0 != acc.mSubOffset[2] || 0 != acc.mSubOffset[3]) {
                 pMesh.mNumUVComponents[pInput.mIndex] = 3;
             }
@@ -2059,7 +2048,7 @@ void ColladaParser::ReadSceneNode(XmlNode &node, Node *pNode) {
                 XmlParser::getStdStrAttribute(currentNode, "id", child->mID);
             }
             if (XmlParser::hasAttribute(currentNode, "sid")) {
-                XmlParser::getStdStrAttribute(currentNode, "sid", child->mSID);
+                XmlParser::getStdStrAttribute(currentNode, "id", child->mSID);
             }
             if (XmlParser::hasAttribute(currentNode, "name")) {
                 XmlParser::getStdStrAttribute(currentNode, "name", child->mName);
@@ -2114,7 +2103,7 @@ void ColladaParser::ReadSceneNode(XmlNode &node, Node *pNode) {
                 if (s[0] != '#') {
                     ASSIMP_LOG_ERROR("Collada: Unresolved reference format of node");
                 } else {
-                    pNode->mNodeInstances.emplace_back();
+                    pNode->mNodeInstances.push_back(NodeInstance());
                     pNode->mNodeInstances.back().mNode = s.c_str() + 1;
                 }
             }
@@ -2130,7 +2119,7 @@ void ColladaParser::ReadSceneNode(XmlNode &node, Node *pNode) {
                     throw DeadlyImportError("Unknown reference format in <instance_light> element");
                 }
 
-                pNode->mLights.emplace_back();
+                pNode->mLights.push_back(LightInstance());
                 pNode->mLights.back().mLight = url.c_str() + 1;
             }
         } else if (currentName == "instance_camera") {
@@ -2141,7 +2130,7 @@ void ColladaParser::ReadSceneNode(XmlNode &node, Node *pNode) {
                 if (url[0] != '#') {
                     throw DeadlyImportError("Unknown reference format in <instance_camera> element");
                 }
-                pNode->mCameras.emplace_back();
+                pNode->mCameras.push_back(CameraInstance());
                 pNode->mCameras.back().mCamera = url.c_str() + 1;
             }
         }
@@ -2253,26 +2242,20 @@ void ColladaParser::ReadNodeGeometry(XmlNode &node, Node *pNode) {
         if (currentName == "bind_material") {
             XmlNode techNode = currentNode.child("technique_common");
             if (techNode) {
-                for (XmlNode instanceMatNode = techNode.child("instance_material"); instanceMatNode; instanceMatNode = instanceMatNode.next_sibling())
-                {
-                    const std::string &instance_name = instanceMatNode.name();
-                    if (instance_name == "instance_material")
-                    {
-                        // read ID of the geometry subgroup and the target material
-                        std::string group;
-                        XmlParser::getStdStrAttribute(instanceMatNode, "symbol", group);
-                        XmlParser::getStdStrAttribute(instanceMatNode, "target", url);
-                        const char *urlMat = url.c_str();
-                        Collada::SemanticMappingTable s;
-                        if (urlMat[0] == '#')
-                            urlMat++;
+                XmlNode instanceMatNode = techNode.child("instance_material");
+                // read ID of the geometry subgroup and the target material
+                std::string group;
+                XmlParser::getStdStrAttribute(instanceMatNode, "symbol", group);
+                XmlParser::getStdStrAttribute(instanceMatNode, "target", url);
+                const char *urlMat = url.c_str();
+                Collada::SemanticMappingTable s;
+                if (urlMat[0] == '#')
+                    urlMat++;
 
-                        s.mMatName = urlMat;
-                        // store the association
-                        instance.mMaterials[group] = s;
-                        ReadMaterialVertexInputBinding(instanceMatNode, s);
-                    }
-                }
+                s.mMatName = urlMat;
+                // store the association
+                instance.mMaterials[group] = s;
+                ReadMaterialVertexInputBinding(instanceMatNode, s);
             }
         }
     }
@@ -2306,7 +2289,7 @@ void ColladaParser::ReadScene(XmlNode &node) {
             // find the referred scene, skip the leading #
             NodeLibrary::const_iterator sit = mNodeLibrary.find(url.c_str() + 1);
             if (sit == mNodeLibrary.end()) {
-                throw DeadlyImportError("Unable to resolve visual_scene reference \"", std::string(std::move(url)), "\" in <instance_visual_scene> element.");
+                throw DeadlyImportError("Unable to resolve visual_scene reference \"", std::string(url), "\" in <instance_visual_scene> element.");
             }
             mRootNode = sit->second;
         }

code/AssetLib/Collada/ColladaParser.h

@@ -2,7 +2,7 @@
  Open Asset Import Library (assimp)
  ----------------------------------------------------------------------
 
- Copyright (c) 2006-2022, assimp team
+ Copyright (c) 2006-2021, 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) 2006-2021, assimp team
 
 
 All rights reserved.
@@ -65,6 +65,7 @@ public:
     LineReader(StreamReaderLE& reader)
     : splitter(reader,false,true)
     , groupcode( 0 )
+    , value()
     , end() {
         // empty
     }
@@ -185,7 +186,8 @@ struct InsertBlock {
     InsertBlock()
     : pos()
     , scale(1.f,1.f,1.f)
-    , angle() {
+    , angle()
+    , name() {
         // empty
     }
 

code/AssetLib/DXF/DXFLoader.cpp

@@ -3,7 +3,7 @@
 Open Asset Import Library (assimp)
 ---------------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2021, assimp team
 
 All rights reserved.
 
@@ -57,7 +57,6 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include <assimp/importerdesc.h>
 
 #include <numeric>
-#include <utility>
 
 using namespace Assimp;
 
@@ -71,7 +70,7 @@ 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
 // taken directly from the DXF spec.
 static aiColor4D g_aclrDxfIndexColors[] = {
-    aiColor4D(0.6f, 0.6f, 0.6f, 1.0f),
+    aiColor4D (0.6f, 0.6f, 0.6f, 1.0f),
     aiColor4D (1.0f, 0.0f, 0.0f, 1.0f), // red
     aiColor4D (0.0f, 1.0f, 0.0f, 1.0f), // green
     aiColor4D (0.0f, 0.0f, 1.0f, 1.0f), // blue
@@ -88,7 +87,6 @@ static aiColor4D g_aclrDxfIndexColors[] = {
     aiColor4D (1.0f, 1.0f, 1.0f, 1.0f), // white
     aiColor4D (0.6f, 0.0f, 1.0f, 1.0f)  // violet
 };
-
 #define AI_DXF_NUM_INDEX_COLORS (sizeof(g_aclrDxfIndexColors)/sizeof(g_aclrDxfIndexColors[0]))
 #define AI_DXF_ENTITIES_MAGIC_BLOCK "$ASSIMP_ENTITIES_MAGIC"
 
@@ -110,11 +108,33 @@ static const aiImporterDesc desc = {
     "dxf"
 };
 
+// ------------------------------------------------------------------------------------------------
+// Constructor to be privately used by Importer
+DXFImporter::DXFImporter()
+: BaseImporter() {
+    // empty
+}
+
+// ------------------------------------------------------------------------------------------------
+// Destructor, private as well
+DXFImporter::~DXFImporter() {
+    // empty
+}
+
 // ------------------------------------------------------------------------------------------------
 // Returns whether the class can handle the format of the given file.
-bool DXFImporter::CanRead( const std::string& filename, IOSystem* pIOHandler, bool /*checkSig*/ ) const {
-    static const char *tokens[] = { "SECTION", "HEADER", "ENDSEC", "BLOCKS" };
-    return SearchFileHeaderForToken(pIOHandler, filename, tokens, AI_COUNT_OF(tokens), 32);
+bool DXFImporter::CanRead( const std::string& filename, IOSystem* pIOHandler, bool checkSig ) const {
+    const std::string& extension = GetExtension( filename );
+    if ( extension == desc.mFileExtensions ) {
+        return true;
+    }
+
+    if ( extension.empty() || checkSig ) {
+        static const char * const pTokens[] = { "SECTION", "HEADER", "ENDSEC", "BLOCKS" };
+        return SearchFileHeaderForToken(pIOHandler, filename, pTokens, 4, 32 );
+    }
+
+    return false;
 }
 
 // ------------------------------------------------------------------------------------------------
@@ -129,7 +149,7 @@ void DXFImporter::InternReadFile( const std::string& filename, aiScene* pScene,
     std::shared_ptr<IOStream> file = std::shared_ptr<IOStream>( pIOHandler->Open( filename) );
 
     // Check whether we can read the file
-    if (file == nullptr) {
+    if( file.get() == nullptr ) {
         throw DeadlyImportError( "Failed to open DXF file ", filename, "");
     }
 
@@ -144,7 +164,7 @@ void DXFImporter::InternReadFile( const std::string& filename, aiScene* pScene,
     // DXF files can grow very large, so read them via the StreamReader,
     // which will choose a suitable strategy.
     file->Seek(0,aiOrigin_SET);
-    StreamReaderLE stream( std::move(file) );
+    StreamReaderLE stream( file );
 
     DXF::LineReader reader (stream);
     DXF::FileData output;
@@ -222,7 +242,7 @@ void DXFImporter::ConvertMeshes(aiScene* pScene, DXF::FileData& output) {
         ASSIMP_LOG_VERBOSE_DEBUG("DXF: Unexpanded polycount is ", icount, ", vertex count is ", vcount);
     }
 
-    if (output.blocks.empty()) {
+    if (! output.blocks.size()  ) {
         throw DeadlyImportError("DXF: no data blocks loaded");
     }
 
@@ -357,14 +377,12 @@ void DXFImporter::ExpandBlockReferences(DXF::Block& bl,const DXF::BlockMap& bloc
         // XXX this would be the place to implement recursive expansion if needed.
         const DXF::Block& bl_src = *(*it).second;
 
-        const size_t size = bl_src.lines.size(); // the size may increase in the loop
-        for (size_t i = 0; i < size; ++i) {
-            std::shared_ptr<const DXF::PolyLine> pl_in = bl_src.lines[i];
+        for (std::shared_ptr<const DXF::PolyLine> pl_in : bl_src.lines) {
             if (!pl_in) {
                 ASSIMP_LOG_ERROR("DXF: PolyLine instance is nullptr, skipping.");
                 continue;
             }
-
+            
             std::shared_ptr<DXF::PolyLine> pl_out = std::shared_ptr<DXF::PolyLine>(new DXF::PolyLine(*pl_in));
 
             if (bl_src.base.Length() || insert.scale.x!=1.f || insert.scale.y!=1.f || insert.scale.z!=1.f || insert.angle || insert.pos.Length()) {
@@ -464,7 +482,7 @@ void DXFImporter::ParseBlocks(DXF::LineReader& reader, DXF::FileData& output) {
 // ------------------------------------------------------------------------------------------------
 void DXFImporter::ParseBlock(DXF::LineReader& reader, DXF::FileData& output) {
     // push a new block onto the stack.
-    output.blocks.emplace_back();
+    output.blocks.push_back( DXF::Block() );
     DXF::Block& block = output.blocks.back();
 
     while( !reader.End() && !reader.Is(0,"ENDBLK")) {
@@ -509,7 +527,7 @@ void DXFImporter::ParseBlock(DXF::LineReader& reader, DXF::FileData& output) {
 // ------------------------------------------------------------------------------------------------
 void DXFImporter::ParseEntities(DXF::LineReader& reader, DXF::FileData& output) {
     // Push a new block onto the stack.
-    output.blocks.emplace_back();
+    output.blocks.push_back( DXF::Block() );
     DXF::Block& block = output.blocks.back();
 
     block.name = AI_DXF_ENTITIES_MAGIC_BLOCK;
@@ -539,7 +557,7 @@ void DXFImporter::ParseEntities(DXF::LineReader& reader, DXF::FileData& output)
 }
 
 void DXFImporter::ParseInsertion(DXF::LineReader& reader, DXF::FileData& output) {
-    output.blocks.back().insertions.emplace_back();
+    output.blocks.back().insertions.push_back( DXF::InsertBlock() );
     DXF::InsertBlock& bl = output.blocks.back().insertions.back();
 
     while( !reader.End() && !reader.Is(0)) {
@@ -580,11 +598,10 @@ void DXFImporter::ParseInsertion(DXF::LineReader& reader, DXF::FileData& output)
     }
 }
 
-static constexpr unsigned int DXF_POLYLINE_FLAG_CLOSED = 0x1;
-// Currently unused
-//static constexpr unsigned int DXF_POLYLINE_FLAG_3D_POLYLINE = 0x8;
-//static constexpr unsigned int DXF_POLYLINE_FLAG_3D_POLYMESH = 0x10;
-static constexpr unsigned int DXF_POLYLINE_FLAG_POLYFACEMESH = 0x40;
+#define DXF_POLYLINE_FLAG_CLOSED        0x1
+#define DXF_POLYLINE_FLAG_3D_POLYLINE   0x8
+#define DXF_POLYLINE_FLAG_3D_POLYMESH   0x10
+#define DXF_POLYLINE_FLAG_POLYFACEMESH  0x40
 
 // ------------------------------------------------------------------------------------------------
 void DXFImporter::ParsePolyLine(DXF::LineReader& reader, DXF::FileData& output) {
@@ -633,6 +650,12 @@ void DXFImporter::ParsePolyLine(DXF::LineReader& reader, DXF::FileData& output)
         reader++;
     }
 
+    //if (!(line.flags & DXF_POLYLINE_FLAG_POLYFACEMESH))   {
+    //  DefaultLogger::get()->warn((Formatter::format("DXF: polyline not currently supported: "),line.flags));
+    //  output.blocks.back().lines.pop_back();
+    //  return;
+    //}
+
     if (vguess && line.positions.size() != vguess) {
         ASSIMP_LOG_WARN("DXF: unexpected vertex count in polymesh: ",
             line.positions.size(),", expected ", vguess );
@@ -722,18 +745,12 @@ void DXFImporter::ParsePolyLineVertex(DXF::LineReader& reader, DXF::PolyLine& li
         case 71:
         case 72:
         case 73:
-        case 74: {
-                if (cnti == 4) {
-                    ASSIMP_LOG_WARN("DXF: more than 4 indices per face not supported; ignoring");
-                    break;
-                }
-                const int index = reader.ValueAsSignedInt();
-                if (index >= 0) {
-                    indices[cnti++] = static_cast<unsigned int>(index);
-                } else {
-                    indices[cnti++] = static_cast<unsigned int>(-index);
-                }
+        case 74:
+            if (cnti == 4) {
+                ASSIMP_LOG_WARN("DXF: more than 4 indices per face not supported; ignoring");
+                break;
             }
+            indices[cnti++] = reader.ValueAsUnsignedInt();
             break;
 
         // color
@@ -771,7 +788,8 @@ void DXFImporter::ParsePolyLineVertex(DXF::LineReader& reader, DXF::PolyLine& li
 }
 
 // ------------------------------------------------------------------------------------------------
-void DXFImporter::Parse3DFace(DXF::LineReader& reader, DXF::FileData& output) {
+void DXFImporter::Parse3DFace(DXF::LineReader& reader, DXF::FileData& output)
+{
     // (note) this is also used for for parsing line entities, so we
     // must handle the vertex_count == 2 case as well.
 
@@ -788,7 +806,8 @@ void DXFImporter::Parse3DFace(DXF::LineReader& reader, DXF::FileData& output) {
         if (reader.GroupCode() == 0) {
             break;
         }
-        switch (reader.GroupCode()) {
+        switch (reader.GroupCode())
+        {
 
         // 8 specifies the layer
         case 8:

code/AssetLib/DXF/DXFLoader.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2021, assimp team
 
 All rights reserved.
 
@@ -68,8 +68,8 @@ namespace DXF {
  */
 class DXFImporter : public BaseImporter {
 public:
-    DXFImporter() = default;
-    ~DXFImporter() override = default;
+    DXFImporter();
+    ~DXFImporter() override;
 
     // -------------------------------------------------------------------
     /** Returns whether the class can handle the format of the given file.

code/AssetLib/FBX/FBXAnimation.cpp

@@ -2,7 +2,8 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2021, assimp team
+
 
 All rights reserved.
 
@@ -86,6 +87,11 @@ AnimationCurve::AnimationCurve(uint64_t id, const Element &element, const std::s
     }
 }
 
+// ------------------------------------------------------------------------------------------------
+AnimationCurve::~AnimationCurve() {
+    // empty
+}
+
 // ------------------------------------------------------------------------------------------------
 AnimationCurveNode::AnimationCurveNode(uint64_t id, const Element &element, const std::string &name,
         const Document &doc, const char *const *target_prop_whitelist /*= nullptr*/,
@@ -141,6 +147,11 @@ AnimationCurveNode::AnimationCurveNode(uint64_t id, const Element &element, cons
     props = GetPropertyTable(doc, "AnimationCurveNode.FbxAnimCurveNode", element, sc, false);
 }
 
+// ------------------------------------------------------------------------------------------------
+AnimationCurveNode::~AnimationCurveNode() {
+    // empty
+}
+
 // ------------------------------------------------------------------------------------------------
 const AnimationCurveMap &AnimationCurveNode::Curves() const {
     if (curves.empty()) {
@@ -182,6 +193,11 @@ AnimationLayer::AnimationLayer(uint64_t id, const Element &element, const std::s
     props = GetPropertyTable(doc, "AnimationLayer.FbxAnimLayer", element, sc, true);
 }
 
+// ------------------------------------------------------------------------------------------------
+AnimationLayer::~AnimationLayer() {
+    // empty
+}
+
 // ------------------------------------------------------------------------------------------------
 AnimationCurveNodeList AnimationLayer::Nodes(const char *const *target_prop_whitelist /*= nullptr*/,
         size_t whitelist_size /*= 0*/) const {
@@ -263,6 +279,11 @@ AnimationStack::AnimationStack(uint64_t id, const Element &element, const std::s
     }
 }
 
+// ------------------------------------------------------------------------------------------------
+AnimationStack::~AnimationStack() {
+    // empty
+}
+
 } // namespace FBX
 } // namespace Assimp
 

code/AssetLib/FBX/FBXBinaryTokenizer.cpp

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2021, assimp team
 
 
 All rights reserved.
@@ -139,7 +139,6 @@ size_t Offset(const char* begin, const char* cursor) {
 }
 
 // ------------------------------------------------------------------------------------------------
-AI_WONT_RETURN void TokenizeError(const std::string& message, const char* begin, const char* cursor) AI_WONT_RETURN_SUFFIX;
 void TokenizeError(const std::string& message, const char* begin, const char* cursor) {
     TokenizeError(message, Offset(begin, cursor));
 }
@@ -342,7 +341,8 @@ void ReadData(const char*& sbegin_out, const char*& send_out, const char* input,
 
 
 // ------------------------------------------------------------------------------------------------
-bool ReadScope(TokenList &output_tokens, StackAllocator &token_allocator, const char *input, const char *&cursor, const char *end, bool const is64bits) {
+bool ReadScope(TokenList& output_tokens, const char* input, const char*& cursor, const char* end, bool const is64bits)
+{
     // the first word contains the offset at which this block ends
 	const uint64_t end_offset = is64bits ? ReadDoubleWord(input, cursor, end) : ReadWord(input, cursor, end);
 
@@ -408,7 +408,7 @@ bool ReadScope(TokenList &output_tokens, StackAllocator &token_allocator, const
 
         // XXX this is vulnerable to stack overflowing ..
         while(Offset(input, cursor) < end_offset - sentinel_block_length) {
-            ReadScope(output_tokens, token_allocator, input, cursor, input + end_offset - sentinel_block_length, is64bits);
+			ReadScope(output_tokens, input, cursor, input + end_offset - sentinel_block_length, is64bits);
         }
         output_tokens.push_back(new_Token(cursor, cursor + 1, TokenType_CLOSE_BRACKET, Offset(input, cursor) ));
 
@@ -431,7 +431,8 @@ bool ReadScope(TokenList &output_tokens, StackAllocator &token_allocator, const
 
 // ------------------------------------------------------------------------------------------------
 // TODO: Test FBX Binary files newer than the 7500 version to check if the 64 bits address behaviour is consistent
-void TokenizeBinary(TokenList &output_tokens, const char *input, size_t length, StackAllocator &token_allocator) {
+void TokenizeBinary(TokenList& output_tokens, const char* input, size_t length)
+{
 	ai_assert(input);
 	ASSIMP_LOG_DEBUG("Tokenizing binary FBX file");
 
@@ -464,14 +465,14 @@ void TokenizeBinary(TokenList &output_tokens, const char *input, size_t length,
     try
     {
         while (cursor < end ) {
-            if (!ReadScope(output_tokens, token_allocator, input, cursor, input + length, is64bits)) {
+		    if (!ReadScope(output_tokens, input, cursor, input + length, is64bits)) {
                 break;
             }
         }
     }
     catch (const DeadlyImportError& e)
     {
-        if (!is64bits && (length > std::numeric_limits<uint32_t>::max())) {
+        if (!is64bits && (length > std::numeric_limits<std::uint32_t>::max())) {
             throw DeadlyImportError("The FBX file is invalid. This may be because the content is too big for this older version (", ai_to_string(version), ") of the FBX format. (", e.what(), ")");
         }
         throw;

code/AssetLib/FBX/FBXCommon.h

@@ -2,7 +2,7 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2021, assimp team
 
 All rights reserved.
 
@@ -50,12 +50,10 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 namespace Assimp {
 namespace FBX {
 
-static constexpr size_t NumNullRecords = 25;
-const char NULL_RECORD[NumNullRecords] = { // 25 null bytes in 64-bit and 13 null bytes in 32-bit
+const std::string NULL_RECORD = { // 25 null bytes in 64-bit and 13 null bytes in 32-bit
     '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0',
     '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0'
 }; // who knows why, it looks like two integers 32/64 bit (compressed and uncompressed sizes?) + 1 byte (might be compression type?)
-static std::string NULL_RECORD_STRING(NumNullRecords, '\0');
 const std::string SEPARATOR = { '\x00', '\x01' }; // for use inside strings
 const std::string MAGIC_NODE_TAG = "_$AssimpFbx$"; // from import
 const int64_t SECOND = 46186158000; // FBX's kTime unit
@@ -82,10 +80,8 @@ enum TransformInheritance {
 
     TransformInheritance_MAX // end-of-enum sentinel
 };
-
 } // namespace FBX
 } // namespace Assimp
-
 #endif // ASSIMP_BUILD_NO_FBX_EXPORTER
 
 #endif // AI_FBXCOMMON_H_INC

code/AssetLib/FBX/FBXCompileConfig.h

@@ -2,7 +2,8 @@
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 
-Copyright (c) 2006-2022, assimp team
+Copyright (c) 2006-2021, 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) 2006-2021, assimp team
 
 All rights reserved.
 
@@ -65,9 +65,12 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include <stdlib.h>
 #include <cstdint>
 #include <iomanip>
+#include <iostream>
 #include <iterator>
 #include <memory>
 #include <sstream>
+#include <tuple>
+#include <vector>
 
 namespace Assimp {
 namespace FBX {
@@ -76,7 +79,7 @@ using namespace Util;
 
 #define MAGIC_NODE_TAG "_$AssimpFbx$"
 
-#define CONVERT_FBX_TIME(time) static_cast<double>(time) / 46186158000LL
+#define CONVERT_FBX_TIME(time) (static_cast<double>(time) * 1000.0 / 46186158000LL)
 
 FBXConverter::FBXConverter(aiScene *out, const Document &doc, bool removeEmptyBones) :
         defaultMaterialIndex(),
@@ -93,8 +96,6 @@ FBXConverter::FBXConverter(aiScene *out, const Document &doc, bool removeEmptyBo
         mSceneOut(out),
         doc(doc),
         mRemoveEmptyBones(removeEmptyBones) {
-
-
     // animations need to be converted first since this will
     // populate the node_anim_chain_bits map, which is needed
     // to determine which nodes need to be generated.
@@ -121,7 +122,7 @@ FBXConverter::FBXConverter(aiScene *out, const Document &doc, bool removeEmptyBo
             if (mat) {
 
                 if (materials_converted.find(mat) == materials_converted.end()) {
-                    ConvertMaterial(*mat, nullptr);
+                    ConvertMaterial(*mat, 0);
                 }
             }
         }
@@ -186,7 +187,8 @@ std::string FBXConverter::MakeUniqueNodeName(const Model *const model, const aiN
 
 /// This struct manages nodes which may or may not end up in the node hierarchy.
 /// When a node becomes a child of another node, that node becomes its owner and mOwnership should be released.
-struct FBXConverter::PotentialNode {
+struct FBXConverter::PotentialNode
+{
     PotentialNode() : mOwnership(new aiNode), mNode(mOwnership.get()) {}
     PotentialNode(const std::string& name) : mOwnership(new aiNode(name)), mNode(mOwnership.get()) {}
     aiNode* operator->() { return mNode; }
@@ -229,6 +231,7 @@ void FBXConverter::ConvertNodes(uint64_t id, aiNode *parent, aiNode *root_node)
         if (nullptr != model) {
             nodes_chain.clear();
             post_nodes_chain.clear();
+
             aiMatrix4x4 new_abs_transform = parent->mTransformation;
             std::string node_name = FixNodeName(model->Name());
             // even though there is only a single input node, the design of
@@ -244,7 +247,7 @@ void FBXConverter::ConvertNodes(uint64_t id, aiNode *parent, aiNode *root_node)
             ai_assert(nodes_chain.size());
 
             if (need_additional_node) {
-                nodes_chain.emplace_back(node_name);
+                nodes_chain.emplace_back(PotentialNode(node_name));
             }
 
             //setup metadata on newest node
@@ -263,6 +266,8 @@ void FBXConverter::ConvertNodes(uint64_t id, aiNode *parent, aiNode *root_node)
 
                 child->mParent = last_parent;
                 last_parent = child.mNode;
+
+                new_abs_transform *= child->mTransformation;
             }
 
             // attach geometry
@@ -285,6 +290,8 @@ void FBXConverter::ConvertNodes(uint64_t id, aiNode *parent, aiNode *root_node)
 
                     postnode->mParent = last_parent;
                     last_parent = postnode.mNode;
+
+                    new_abs_transform *= postnode->mTransformation;
                 }
             } else {
                 // free the nodes we allocated as we don't need them
@@ -307,16 +314,19 @@ void FBXConverter::ConvertNodes(uint64_t id, aiNode *parent, aiNode *root_node)
         }
     }
 
-    if (nodes.empty()) {
+    if (nodes.size()) {
+        parent->mChildren = new aiNode *[nodes.size()]();
+        parent->mNumChildren = static_cast<unsigned int>(nodes.size());
+
+        for (unsigned int i = 0; i < nodes.size(); ++i)
+        {
+            parent->mChildren[i] = nodes[i].mOwnership.release();
+        }
+        nodes.clear();
+    } else {
         parent->mNumChildren = 0;
         parent->mChildren = nullptr;
     }
-
-    parent->mChildren = new aiNode *[nodes.size()]();
-    parent->mNumChildren = static_cast<unsigned int>(nodes.size());
-    for (unsigned int i = 0; i < nodes.size(); ++i) {
-        parent->mChildren[i] = nodes[i].mOwnership.release();
-    }
 }
 
 void FBXConverter::ConvertLights(const Model &model, const std::string &orig_name) {
@@ -423,32 +433,16 @@ void FBXConverter::ConvertCamera(const Camera &cam, const std::string &orig_name
 
     out_camera->mAspect = cam.AspectWidth() / cam.AspectHeight();
 
-    // NOTE: Camera mPosition, mLookAt and mUp must be set to default here.
-    // All transformations to the camera will be handled by its node in the scenegraph.
     out_camera->mPosition = aiVector3D(0.0f);
     out_camera->mLookAt = aiVector3D(1.0f, 0.0f, 0.0f);
     out_camera->mUp = aiVector3D(0.0f, 1.0f, 0.0f);
 
-    // NOTE: Some software (maya) does not put FieldOfView in FBX, so we compute
-    // mHorizontalFOV from FocalLength and FilmWidth with unit conversion.
+    out_camera->mHorizontalFOV = AI_DEG_TO_RAD(cam.FieldOfView());
 
-    // TODO: This is not a complete solution for how FBX cameras can be stored.
-    // TODO: Incorporate non-square pixel aspect ratio.
-    // TODO: FBX aperture mode might be storing vertical FOV in need of conversion with aspect ratio.
-
-    float fov_deg = cam.FieldOfView();
-    // If FOV not specified in file, compute using FilmWidth and FocalLength.
-    if (fov_deg == kFovUnknown) {
-        float film_width_inches = cam.FilmWidth();
-        float focal_length_mm = cam.FocalLength();
-        ASSIMP_LOG_VERBOSE_DEBUG("FBX FOV unspecified. Computing from FilmWidth (", film_width_inches, "inches) and FocalLength (", focal_length_mm, "mm).");
-        double half_fov_rad = std::atan2(film_width_inches * 25.4 * 0.5, focal_length_mm);
-        out_camera->mHorizontalFOV = static_cast<float>(half_fov_rad);
-    } else {
-        // FBX fov is full-view degrees. We want half-view radians.
-        out_camera->mHorizontalFOV = AI_DEG_TO_RAD(fov_deg) * 0.5f;
-    }
+    out_camera->mClipPlaneNear = cam.NearPlane();
+    out_camera->mClipPlaneFar = cam.FarPlane();
 
+    out_camera->mHorizontalFOV = AI_DEG_TO_RAD(cam.FieldOfView());
     out_camera->mClipPlaneNear = cam.NearPlane();
     out_camera->mClipPlaneFar = cam.FarPlane();
 }
@@ -458,7 +452,7 @@ void FBXConverter::GetUniqueName(const std::string &name, std::string &uniqueNam
     auto it_pair = mNodeNames.insert({ name, 0 }); // duplicate node name instance count
     unsigned int &i = it_pair.first->second;
     while (!it_pair.second) {
-        ++i;
+        i++;
         std::ostringstream ext;
         ext << name << std::setfill('0') << std::setw(3) << i;
         uniqueName = ext.str();
@@ -657,8 +651,9 @@ void FBXConverter::GetRotationMatrix(Model::RotOrder mode, const aiVector3D &rot
 
 bool FBXConverter::NeedsComplexTransformationChain(const Model &model) {
     const PropertyTable &props = model.Props();
+    bool ok;
 
-    const auto zero_epsilon = Math::getEpsilon<ai_real>();
+    const float zero_epsilon = 1e-6f;
     const aiVector3D all_ones(1.0f, 1.0f, 1.0f);
     for (size_t i = 0; i < TransformationComp_MAXIMUM; ++i) {
         const TransformationComp comp = static_cast<TransformationComp>(i);
@@ -670,7 +665,6 @@ bool FBXConverter::NeedsComplexTransformationChain(const Model &model) {
 
         bool scale_compare = (comp == TransformationComp_GeometricScaling || comp == TransformationComp_Scaling);
 
-        bool ok = true;
         const aiVector3D &v = PropertyGet<aiVector3D>(props, NameTransformationCompProperty(comp), ok);
         if (ok && scale_compare) {
             if ((v - all_ones).SquareLength() > zero_epsilon) {
@@ -891,12 +885,8 @@ void FBXConverter::SetupNodeMetadata(const Model &model, aiNode &nd) {
             data->Set(index++, prop.first, interpretedBool->Value());
         } else if (const TypedProperty<int> *interpretedInt = prop.second->As<TypedProperty<int>>()) {
             data->Set(index++, prop.first, interpretedInt->Value());
-        } else if (const TypedProperty<uint32_t> *interpretedUInt = prop.second->As<TypedProperty<uint32_t>>()) {
-            data->Set(index++, prop.first, interpretedUInt->Value());
         } else if (const TypedProperty<uint64_t> *interpretedUint64 = prop.second->As<TypedProperty<uint64_t>>()) {
             data->Set(index++, prop.first, interpretedUint64->Value());
-        } else if (const TypedProperty<int64_t> *interpretedint64 = prop.second->As<TypedProperty<int64_t>>()) {
-            data->Set(index++, prop.first, interpretedint64->Value());
         } else if (const TypedProperty<float> *interpretedFloat = prop.second->As<TypedProperty<float>>()) {
             data->Set(index++, prop.first, interpretedFloat->Value());
         } else if (const TypedProperty<std::string> *interpretedString = prop.second->As<TypedProperty<std::string>>()) {
@@ -909,17 +899,20 @@ void FBXConverter::SetupNodeMetadata(const Model &model, aiNode &nd) {
     }
 }
 
-void FBXConverter::ConvertModel(const Model &model, aiNode *parent, aiNode *root_node, const aiMatrix4x4 &absolute_transform) {
+void FBXConverter::ConvertModel(const Model &model, aiNode *parent, aiNode *root_node,
+        const aiMatrix4x4 &absolute_transform) {
     const std::vector<const Geometry *> &geos = model.GetGeometry();
 
     std::vector<unsigned int> meshes;
     meshes.reserve(geos.size());
 
     for (const Geometry *geo : geos) {
+
         const MeshGeometry *const mesh = dynamic_cast<const MeshGeometry *>(geo);
         const LineGeometry *const line = dynamic_cast<const LineGeometry *>(geo);
         if (mesh) {
-            const std::vector<unsigned int> &indices = ConvertMesh(*mesh, model, parent, root_node, absolute_transform);
+            const std::vector<unsigned int> &indices = ConvertMesh(*mesh, model, parent, root_node,
+                    absolute_transform);
             std::copy(indices.begin(), indices.end(), std::back_inserter(meshes));
         } else if (line) {
             const std::vector<unsigned int> &indices = ConvertLine(*line, root_node);
@@ -940,7 +933,8 @@ void FBXConverter::ConvertModel(const Model &model, aiNode *parent, aiNode *root
 }
 
 std::vector<unsigned int>
-FBXConverter::ConvertMesh(const MeshGeometry &mesh, const Model &model, aiNode *parent, aiNode *root_node, const aiMatrix4x4 &absolute_transform) {
+FBXConverter::ConvertMesh(const MeshGeometry &mesh, const Model &model, aiNode *parent, aiNode *root_node,
+        const aiMatrix4x4 &absolute_transform) {
     std::vector<unsigned int> temp;
 
     MeshMap::const_iterator it = meshes_converted.find(&mesh);
@@ -963,7 +957,7 @@ FBXConverter::ConvertMesh(const MeshGeometry &mesh, const Model &model, aiNode *
         const MatIndexArray::value_type base = mindices[0];
         for (MatIndexArray::value_type index : mindices) {
             if (index != base) {
-                return ConvertMeshMultiMaterial(mesh, model, absolute_transform, parent, root_node);
+                return ConvertMeshMultiMaterial(mesh, model, parent, root_node, absolute_transform);
             }
         }
     }
@@ -1037,36 +1031,9 @@ aiMesh *FBXConverter::SetupEmptyMesh(const Geometry &mesh, aiNode *parent) {
     return out_mesh;
 }
 
-static aiSkeleton *createAiSkeleton(SkeletonBoneContainer &sbc) {
-    if (sbc.MeshArray.empty() || sbc.SkeletonBoneToMeshLookup.empty()) {
-        return nullptr;
-    }
-
-    aiSkeleton *skeleton = new aiSkeleton;
-    for (auto *mesh : sbc.MeshArray) {
-        auto it = sbc.SkeletonBoneToMeshLookup.find(mesh);
-        if (it == sbc.SkeletonBoneToMeshLookup.end()) {
-            continue;
-        }
-        SkeletonBoneArray *ba = it->second;
-        if (ba == nullptr) {
-            continue;
-        }
-
-        skeleton->mNumBones = static_cast<unsigned int>(ba->size());
-        skeleton->mBones = new aiSkeletonBone*[skeleton->mNumBones];
-        size_t index = 0;
-        for (auto bone : (* ba)) {
-            skeleton->mBones[index] = bone;
-            ++index;
-        }
-    }
-
-    return skeleton;
-}
-
-unsigned int FBXConverter::ConvertMeshSingleMaterial(const MeshGeometry &mesh, const Model &model, const aiMatrix4x4 &absolute_transform,
-        aiNode *parent, aiNode *) {
+unsigned int FBXConverter::ConvertMeshSingleMaterial(const MeshGeometry &mesh, const Model &model,
+        const aiMatrix4x4 &absolute_transform, aiNode *parent,
+        aiNode *) {
     const MatIndexArray &mindices = mesh.GetMaterialIndices();
     aiMesh *const out_mesh = SetupEmptyMesh(mesh, parent);
 
@@ -1184,37 +1151,22 @@ unsigned int FBXConverter::ConvertMeshSingleMaterial(const MeshGeometry &mesh, c
         ConvertMaterialForMesh(out_mesh, model, mesh, mindices[0]);
     }
 
-    if (doc.Settings().readWeights && mesh.DeformerSkin() != nullptr && !doc.Settings().useSkeleton) {
+    if (doc.Settings().readWeights && mesh.DeformerSkin() != nullptr) {
         ConvertWeights(out_mesh, mesh, absolute_transform, parent, NO_MATERIAL_SEPARATION, nullptr);
-    } else if (doc.Settings().readWeights && mesh.DeformerSkin() != nullptr && doc.Settings().useSkeleton) {
-        SkeletonBoneContainer sbc;
-        ConvertWeightsToSkeleton(out_mesh, mesh, absolute_transform, parent, NO_MATERIAL_SEPARATION, nullptr, sbc);
-        aiSkeleton *skeleton = createAiSkeleton(sbc);
-        if (skeleton != nullptr) {
-            mSkeletons.emplace_back(skeleton);
-        }
     }
 
     std::vector<aiAnimMesh *> animMeshes;
     for (const BlendShape *blendShape : mesh.GetBlendShapes()) {
         for (const BlendShapeChannel *blendShapeChannel : blendShape->BlendShapeChannels()) {
-            const auto& shapeGeometries = blendShapeChannel->GetShapeGeometries();
-            for (const ShapeGeometry *shapeGeometry : shapeGeometries) {
+            const std::vector<const ShapeGeometry *> &shapeGeometries = blendShapeChannel->GetShapeGeometries();
+            for (size_t i = 0; i < shapeGeometries.size(); i++) {
                 aiAnimMesh *animMesh = aiCreateAnimMesh(out_mesh);
-                const auto &curVertices = shapeGeometry->GetVertices();
-                const auto &curNormals = shapeGeometry->GetNormals();
-                const auto &curIndices = shapeGeometry->GetIndices();
+                const ShapeGeometry *shapeGeometry = shapeGeometries.at(i);
+                const std::vector<aiVector3D> &curVertices = shapeGeometry->GetVertices();
+                const std::vector<aiVector3D> &curNormals = shapeGeometry->GetNormals();
+                const std::vector<unsigned int> &curIndices = shapeGeometry->GetIndices();
                 //losing channel name if using shapeGeometry->Name()
-                // if blendShapeChannel Name is empty or don't have a ".", add geoMetryName;
-                auto aniName = FixAnimMeshName(blendShapeChannel->Name());
-                auto geoMetryName = FixAnimMeshName(shapeGeometry->Name());
-                if (aniName.empty()) {
-                    aniName = geoMetryName;
-                }
-                else if (aniName.find('.') == aniName.npos) {
-                    aniName += "." + geoMetryName;
-                }
-                animMesh->mName.Set(aniName);
+                animMesh->mName.Set(FixAnimMeshName(blendShapeChannel->Name()));
                 for (size_t j = 0; j < curIndices.size(); j++) {
                     const unsigned int curIndex = curIndices.at(j);
                     aiVector3D vertex = curVertices.at(j);
@@ -1247,8 +1199,9 @@ unsigned int FBXConverter::ConvertMeshSingleMaterial(const MeshGeometry &mesh, c
 }
 
 std::vector<unsigned int>
-FBXConverter::ConvertMeshMultiMaterial(const MeshGeometry &mesh, const Model &model, const aiMatrix4x4 &absolute_transform, aiNode *parent,
-        aiNode *root_node) {
+FBXConverter::ConvertMeshMultiMaterial(const MeshGeometry &mesh, const Model &model, aiNode *parent,
+        aiNode *root_node,
+        const aiMatrix4x4 &absolute_transform) {
     const MatIndexArray &mindices = mesh.GetMaterialIndices();
     ai_assert(mindices.size());
 
@@ -1258,7 +1211,7 @@ FBXConverter::ConvertMeshMultiMaterial(const MeshGeometry &mesh, const Model &mo
     for (MatIndexArray::value_type index : mindices) {
         if (had.find(index) == had.end()) {
 
-            indices.push_back(ConvertMeshMultiMaterial(mesh, model, absolute_transform, index, parent, root_node));
+            indices.push_back(ConvertMeshMultiMaterial(mesh, model, index, parent, root_node, absolute_transform));
             had.insert(index);
         }
     }
@@ -1266,8 +1219,10 @@ FBXConverter::ConvertMeshMultiMaterial(const MeshGeometry &mesh, const Model &mo
     return indices;
 }
 
-unsigned int FBXConverter::ConvertMeshMultiMaterial(const MeshGeometry &mesh, const Model &model, const aiMatrix4x4 &absolute_transform,
-        MatIndexArray::value_type index, aiNode *parent, aiNode *) {
+unsigned int FBXConverter::ConvertMeshMultiMaterial(const MeshGeometry &mesh, const Model &model,
+        MatIndexArray::value_type index,
+        aiNode *parent, aiNode *,
+        const aiMatrix4x4 &absolute_transform) {
     aiMesh *const out_mesh = SetupEmptyMesh(mesh, parent);
 
     const MatIndexArray &mindices = mesh.GetMaterialIndices();
@@ -1312,7 +1267,7 @@ unsigned int FBXConverter::ConvertMeshMultiMaterial(const MeshGeometry &mesh, co
     const std::vector<aiVector3D> &normals = mesh.GetNormals();
     if (normals.size()) {
         ai_assert(normals.size() == vertices.size());
-        out_mesh->mNormals = new aiVector3D[count_vertices];
+        out_mesh->mNormals = new aiVector3D[vertices.size()];
     }
 
     // allocate tangents, binormals.
@@ -1340,8 +1295,8 @@ unsigned int FBXConverter::ConvertMeshMultiMaterial(const MeshGeometry &mesh, co
             ai_assert(tangents.size() == vertices.size());
             ai_assert(binormals->size() == vertices.size());
 
-            out_mesh->mTangents = new aiVector3D[count_vertices];
-            out_mesh->mBitangents = new aiVector3D[count_vertices];
+            out_mesh->mTangents = new aiVector3D[vertices.size()];
+            out_mesh->mBitangents = new aiVector3D[vertices.size()];
         }
     }
 
@@ -1353,7 +1308,7 @@ unsigned int FBXConverter::ConvertMeshMultiMaterial(const MeshGeometry &mesh, co
             break;
         }
 
-        out_mesh->mTextureCoords[i] = new aiVector3D[count_vertices];
+        out_mesh->mTextureCoords[i] = new aiVector3D[vertices.size()];
         out_mesh->mNumUVComponents[i] = 2;
     }
 
@@ -1365,7 +1320,7 @@ unsigned int FBXConverter::ConvertMeshMultiMaterial(const MeshGeometry &mesh, co
             break;
         }
 
-        out_mesh->mColors[i] = new aiColor4D[count_vertices];
+        out_mesh->mColors[i] = new aiColor4D[vertices.size()];
     }
 
     unsigned int cursor = 0, in_cursor = 0;
@@ -1436,12 +1391,13 @@ unsigned int FBXConverter::ConvertMeshMultiMaterial(const MeshGeometry &mesh, co
     std::vector<aiAnimMesh *> animMeshes;
     for (const BlendShape *blendShape : mesh.GetBlendShapes()) {
         for (const BlendShapeChannel *blendShapeChannel : blendShape->BlendShapeChannels()) {
-            const auto& shapeGeometries = blendShapeChannel->GetShapeGeometries();
-            for (const ShapeGeometry *shapeGeometry : shapeGeometries) {
+            const std::vector<const ShapeGeometry *> &shapeGeometries = blendShapeChannel->GetShapeGeometries();
+            for (size_t i = 0; i < shapeGeometries.size(); i++) {
                 aiAnimMesh *animMesh = aiCreateAnimMesh(out_mesh);
-                const auto& curVertices = shapeGeometry->GetVertices();
-                const auto& curNormals = shapeGeometry->GetNormals();
-                const auto& curIndices = shapeGeometry->GetIndices();
+                const ShapeGeometry *shapeGeometry = shapeGeometries.at(i);
+                const std::vector<aiVector3D> &curVertices = shapeGeometry->GetVertices();
+                const std::vector<aiVector3D> &curNormals = shapeGeometry->GetNormals();
+                const std::vector<unsigned int> &curIndices = shapeGeometry->GetIndices();
                 animMesh->mName.Set(FixAnimMeshName(shapeGeometry->Name()));
                 for (size_t j = 0; j < curIndices.size(); j++) {
                     unsigned int curIndex = curIndices.at(j);
@@ -1479,49 +1435,20 @@ unsigned int FBXConverter::ConvertMeshMultiMaterial(const MeshGeometry &mesh, co
     return static_cast<unsigned int>(mMeshes.size() - 1);
 }
 
-static void copyBoneToSkeletonBone(aiMesh *mesh, aiBone *bone, aiSkeletonBone *skeletonBone ) {
-    skeletonBone->mNumnWeights = bone->mNumWeights;
-    skeletonBone->mWeights = bone->mWeights;
-    skeletonBone->mOffsetMatrix = bone->mOffsetMatrix;
-    skeletonBone->mMeshId = mesh;
-#ifndef ASSIMP_BUILD_NO_ARMATUREPOPULATE_PROCESS
-    skeletonBone->mNode = bone->mNode;
-#endif
-    skeletonBone->mParent = -1;
-}
-
-void FBXConverter::ConvertWeightsToSkeleton(aiMesh *out, const MeshGeometry &geo, const aiMatrix4x4 &absolute_transform, aiNode *parent, unsigned int materialIndex,
-        std::vector<unsigned int> *outputVertStartIndices, SkeletonBoneContainer &skeletonContainer) {
-
-    if (skeletonContainer.SkeletonBoneToMeshLookup.find(out) != skeletonContainer.SkeletonBoneToMeshLookup.end()) {
-        return;
-    }
-
-    ConvertWeights(out, geo, absolute_transform, parent, materialIndex, outputVertStartIndices);
-    skeletonContainer.MeshArray.emplace_back(out);
-    SkeletonBoneArray *ba = new SkeletonBoneArray;
-    for (size_t i = 0; i < out->mNumBones; ++i) {
-        aiBone *bone = out->mBones[i];
-        if (bone == nullptr) {
-            continue;
-        }
-        aiSkeletonBone *skeletonBone = new aiSkeletonBone;
-        copyBoneToSkeletonBone(out, bone, skeletonBone);
-        ba->emplace_back(skeletonBone);
-    }
-    skeletonContainer.SkeletonBoneToMeshLookup[out] = ba;
-}
-
-void FBXConverter::ConvertWeights(aiMesh *out, const MeshGeometry &geo, const aiMatrix4x4 &absolute_transform,
+void FBXConverter::ConvertWeights(aiMesh *out, const MeshGeometry &geo,
+        const aiMatrix4x4 &absolute_transform,
         aiNode *parent, unsigned int materialIndex,
         std::vector<unsigned int> *outputVertStartIndices) {
     ai_assert(geo.DeformerSkin());
 
-    std::vector<size_t> out_indices, index_out_indices, count_out_indices;
+    std::vector<size_t> out_indices;
+    std::vector<size_t> index_out_indices;
+    std::vector<size_t> count_out_indices;
 
     const Skin &sk = *geo.DeformerSkin();
 
-    std::vector<aiBone*> bones;
+    std::vector<aiBone *> bones;
+
     const bool no_mat_check = materialIndex == NO_MATERIAL_SEPARATION;
     ai_assert(no_mat_check || outputVertStartIndices);
 
@@ -1594,20 +1521,26 @@ void FBXConverter::ConvertWeights(aiMesh *out, const MeshGeometry &geo, const ai
         out->mBones = nullptr;
         out->mNumBones = 0;
         return;
-    }
+    } else {
+        out->mBones = new aiBone *[bones.size()]();
+        out->mNumBones = static_cast<unsigned int>(bones.size());
 
-    out->mBones = new aiBone *[bones.size()]();
-    out->mNumBones = static_cast<unsigned int>(bones.size());
-    std::swap_ranges(bones.begin(), bones.end(), out->mBones);
+        std::swap_ranges(bones.begin(), bones.end(), out->mBones);
+    }
 }
 
-void FBXConverter::ConvertCluster(std::vector<aiBone*> &local_mesh_bones, const Cluster *cluster,
-        std::vector<size_t> &out_indices, std::vector<size_t> &index_out_indices,
-        std::vector<size_t> &count_out_indices, const aiMatrix4x4 & /* absolute_transform*/,
-        aiNode *) {
-    ai_assert(cluster != nullptr); // make sure cluster valid
+const aiNode *GetNodeByName(aiNode *current_node) {
+    aiNode *iter = current_node;
+    //printf("Child count: %d", iter->mNumChildren);
+    return iter;
+}
 
-    std::string deformer_name = cluster->TargetNode()->Name();
+void FBXConverter::ConvertCluster(std::vector<aiBone *> &local_mesh_bones, const Cluster *cl,
+        std::vector<size_t> &out_indices, std::vector<size_t> &index_out_indices,
+        std::vector<size_t> &count_out_indices, const aiMatrix4x4 &absolute_transform,
+        aiNode *) {
+    ai_assert(cl); // make sure cluster valid
+    std::string deformer_name = cl->TargetNode()->Name();
     aiString bone_name = aiString(FixNodeName(deformer_name));
 
     aiBone *bone = nullptr;
@@ -1620,16 +1553,14 @@ void FBXConverter::ConvertCluster(std::vector<aiBone*> &local_mesh_bones, const
         bone = new aiBone();
         bone->mName = bone_name;
 
-        bone->mOffsetMatrix = cluster->Transform();
         // store local transform link for post processing
-        /*
-        bone->mOffsetMatrix = cluster->TransformLink();
+        bone->mOffsetMatrix = cl->TransformLink();
         bone->mOffsetMatrix.Inverse();
 
         aiMatrix4x4 matrix = (aiMatrix4x4)absolute_transform;
 
         bone->mOffsetMatrix = bone->mOffsetMatrix * matrix; // * mesh_offset
-        */
+
         //
         // Now calculate the aiVertexWeights
         //
@@ -1640,7 +1571,7 @@ void FBXConverter::ConvertCluster(std::vector<aiBone*> &local_mesh_bones, const
         cursor = bone->mWeights = new aiVertexWeight[out_indices.size()];
 
         const size_t no_index_sentinel = std::numeric_limits<size_t>::max();
-        const WeightArray &weights = cluster->GetWeights();
+        const WeightArray &weights = cl->GetWeights();
 
         const size_t c = index_out_indices.size();
         for (size_t i = 0; i < c; ++i) {
@@ -2139,7 +2070,6 @@ void FBXConverter::SetTextureProperties(aiMaterial *out_mat, const LayeredTextur
     TrySetTextureProperties(out_mat, layeredTextures, "ShininessExponent", aiTextureType_SHININESS, mesh);
     TrySetTextureProperties(out_mat, layeredTextures, "EmissiveFactor", aiTextureType_EMISSIVE, mesh);
     TrySetTextureProperties(out_mat, layeredTextures, "TransparencyFactor", aiTextureType_OPACITY, mesh);
-    TrySetTextureProperties(out_mat, layeredTextures, "ReflectionFactor", aiTextureType_METALNESS, mesh);
 }
 
 aiColor3D FBXConverter::GetColorPropertyFactored(const PropertyTable &props, const std::string &colorName,
@@ -2230,9 +2160,6 @@ void FBXConverter::SetShadingPropertiesCommon(aiMaterial *out_mat, const Propert
     const float ShininessExponent = PropertyGet<float>(props, "ShininessExponent", ok);
     if (ok) {
         out_mat->AddProperty(&ShininessExponent, 1, AI_MATKEY_SHININESS);
-         // Match Blender behavior to extract roughness when only shininess is present
-        const float roughness = 1.0f - (sqrt(ShininessExponent) / 10.0f);
-        out_mat->AddProperty(&roughness, 1, AI_MATKEY_ROUGHNESS_FACTOR);
     }
 
     // TransparentColor / TransparencyFactor... gee thanks FBX :rolleyes:
@@ -2685,13 +2612,13 @@ void FBXConverter::ConvertAnimationStack(const AnimationStack &st) {
                 meshMorphAnim->mNumKeys = numKeys;
                 meshMorphAnim->mKeys = new aiMeshMorphKey[numKeys];
                 unsigned int j = 0;
-                for (auto &animIt : *animData) {
+                for (auto animIt : *animData) {
                     morphKeyData *keyData = animIt.second;
                     unsigned int numValuesAndWeights = static_cast<unsigned int>(keyData->values.size());
                     meshMorphAnim->mKeys[j].mNumValuesAndWeights = numValuesAndWeights;
                     meshMorphAnim->mKeys[j].mValues = new unsigned int[numValuesAndWeights];
                     meshMorphAnim->mKeys[j].mWeights = new double[numValuesAndWeights];
-                    meshMorphAnim->mKeys[j].mTime = CONVERT_FBX_TIME(animIt.first) * anim_fps;
+                    meshMorphAnim->mKeys[j].mTime = CONVERT_FBX_TIME(animIt.first);
                     for (unsigned int k = 0; k < numValuesAndWeights; k++) {
                         meshMorphAnim->mKeys[j].mValues[k] = keyData->values.at(k);
                         meshMorphAnim->mKeys[j].mWeights[k] = keyData->weights.at(k);
@@ -2709,8 +2636,8 @@ void FBXConverter::ConvertAnimationStack(const AnimationStack &st) {
         return;
     }
 
-    double start_time_fps = has_local_startstop ? (CONVERT_FBX_TIME(start_time) * anim_fps) : min_time;
-    double stop_time_fps = has_local_startstop ? (CONVERT_FBX_TIME(stop_time) * anim_fps) : max_time;
+    double start_time_fps = has_local_startstop ? CONVERT_FBX_TIME(start_time) : min_time;
+    double stop_time_fps = has_local_startstop ? CONVERT_FBX_TIME(stop_time) : max_time;
 
     // adjust relative timing for animation
     for (unsigned int c = 0; c < anim->mNumChannels; c++) {
@@ -3235,7 +3162,7 @@ aiNodeAnim* FBXConverter::GenerateSimpleNodeAnim(const std::string& name,
         InterpolateKeys(outTranslations, keytimes, keyframeLists[TransformationComp_Translation], defTranslate, maxTime, minTime);
     } else {
         for (size_t i = 0; i < keyCount; ++i) {
-            outTranslations[i].mTime = CONVERT_FBX_TIME(keytimes[i]) * anim_fps;
+            outTranslations[i].mTime = CONVERT_FBX_TIME(keytimes[i]);
             outTranslations[i].mValue = defTranslate;
         }
     }
@@ -3244,7 +3171,7 @@ aiNodeAnim* FBXConverter::GenerateSimpleNodeAnim(const std::string& name,
         InterpolateKeys(outRotations, keytimes, keyframeLists[TransformationComp_Rotation], defRotation, maxTime, minTime, rotOrder);
     } else {
         for (size_t i = 0; i < keyCount; ++i) {
-            outRotations[i].mTime = CONVERT_FBX_TIME(keytimes[i]) * anim_fps;
+            outRotations[i].mTime = CONVERT_FBX_TIME(keytimes[i]);
             outRotations[i].mValue = defQuat;
         }
     }
@@ -3253,14 +3180,13 @@ aiNodeAnim* FBXConverter::GenerateSimpleNodeAnim(const std::string& name,
         InterpolateKeys(outScales, keytimes, keyframeLists[TransformationComp_Scaling], defScale, maxTime, minTime);
     } else {
         for (size_t i = 0; i < keyCount; ++i) {
-            outScales[i].mTime = CONVERT_FBX_TIME(keytimes[i]) * anim_fps;
+            outScales[i].mTime = CONVERT_FBX_TIME(keytimes[i]);
             outScales[i].mValue = defScale;
         }
     }
 
     bool ok = false;
-
-    const auto zero_epsilon = ai_epsilon;
+    const float zero_epsilon = 1e-6f;
 
     const aiVector3D& preRotation = PropertyGet<aiVector3D>(props, "PreRotation", ok);
     if (ok && preRotation.SquareLength() > zero_epsilon) {
@@ -3347,7 +3273,7 @@ FBXConverter::KeyFrameListList FBXConverter::GetKeyframeList(const std::vector<c
                 }
             }
 
-            inputs.emplace_back(Keys, Values, mapto);
+            inputs.push_back(std::make_tuple(Keys, Values, mapto));
         }
     }
     return inputs; // pray for NRVO :-)
@@ -3398,17 +3324,13 @@ FBXConverter::KeyFrameListList FBXConverter::GetRotationKeyframeList(const std::
                 float vc = curve->GetValues().at(1);
                 for (size_t n = 1; n < count; n++) {
                     while (std::abs(vc - vp) >= 180.0f) {
-                        double step = std::floor(double(tc - tp) / std::abs(vc - vp) * 179.0f);
+                        float step = std::floor(float(tc - tp) / (vc - vp) * 179.0f);
                         int64_t tnew = tp + int64_t(step);
-                        float vnew = vp + (vc - vp) * float(step / (tc - tp));
+                        float vnew = vp + (vc - vp) * step / float(tc - tp);
                         if (tnew >= adj_start && tnew <= adj_stop) {
                             Keys->push_back(tnew);
                             Values->push_back(vnew);
                         }
-                        else {
-                            // Something broke
-                            break;
-                        }
                         tp = tnew;
                         vp = vnew;
                     }
@@ -3424,7 +3346,7 @@ FBXConverter::KeyFrameListList FBXConverter::GetRotationKeyframeList(const std::
                     }
                 }
             }
-            inputs.emplace_back(Keys, Values, mapto);
+            inputs.push_back(std::make_tuple(Keys, Values, mapto));
         }
     }
     return inputs;
@@ -3520,7 +3442,7 @@ void FBXConverter::InterpolateKeys(aiVectorKey *valOut, const KeyTimeList &keys,
         }
 
         // magic value to convert fbx times to seconds
-        valOut->mTime = CONVERT_FBX_TIME(time) * anim_fps;
+        valOut->mTime = CONVERT_FBX_TIME(time);
 
         min_time = std::min(min_time, valOut->mTime);
         max_time = std::max(max_time, valOut->mTime);
@@ -3709,12 +3631,6 @@ void FBXConverter::TransferDataToScene() {
 
         std::swap_ranges(textures.begin(), textures.end(), mSceneOut->mTextures);
     }
-
-    if (!mSkeletons.empty()) {
-        mSceneOut->mSkeletons = new aiSkeleton *[mSkeletons.size()];
-        mSceneOut->mNumSkeletons = static_cast<unsigned int>(mSkeletons.size());
-        std::swap_ranges(mSkeletons.begin(), mSkeletons.end(), mSceneOut->mSkeletons);
-    }
 }
 
 void FBXConverter::ConvertOrphanedEmbeddedTextures() {