Merge branch 'master' into master

2019-05-16 11:13:48 +02:00 · 2019-05-16 11:13:48 +02:00 · 77281b75b2
parent e83671f494 524d8c281e
commit 77281b75b2
50 changed files with 998 additions and 554 deletions
--- a/.gitignore
+++ b/.gitignore
@ -17,6 +17,7 @@ CMakeLists.txt.user
 # Generated
 assimp.pc
 assimp.aps
 revision.h
 contrib/zlib/zconf.h
 contrib/zlib/zlib.pc
--- a/Build.md
+++ b/Build.md
@ -1,32 +1,32 @@
-# Install CMake
+# Build Instructions
 ## Install CMake
 Asset-Importer-Lib can be build for a lot of different platforms. We are using cmake to generate the build environment for these via cmake. So you have to make sure that you have a working cmake-installation on your system. You can download it at https://cmake.org/ or for linux install it via
-```
+```bash
 sudo apt-get install cmake
 ```
-# Get the source
+## Get the source
 Make sure you have a working git-installation. Open a command prompt and clone the Asset-Importer-Lib via:
-```
+```bash
 git clone https://github.com/assimp/assimp.git
 ```
-# Build instructions for Windows with Visual-Studio
+## 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/
 To generate the build environment for your IDE open a command prompt, navigate to your repo and type:
-```
+```bash
-> cmake CMakeLists.txt
+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.
-# Build instructions for Windows with UWP
+## Build instructions for Windows with UWP
-See https://stackoverflow.com/questions/40803170/cmake-uwp-using-cmake-to-build-universal-windows-app
+See <https://stackoverflow.com/questions/40803170/cmake-uwp-using-cmake-to-build-universal-windows-app>
-
+## Build instructions for Linux / Unix
 # Build instrcutions for Linux / Unix
 Open a terminal and got to your repository. You can generate the makefiles and build the library via:
-```
+```bash
 cmake CMakeLists.txt
 make -j4
 ```
@ -34,7 +34,23 @@ The option -j descripes the number of parallel processes for the build. In this
 If you want to use a IDE for linux you can try QTCreator for instance. 
-# CMake build options
+## Build instructions for MinGW
 Older versions of MinGW's compiler (e.g. 5.1.0) do not support the -mbig_obj flag 
 required to compile some of assimp's files, especially for debug builds.
 Version 7.3.0 of g++-mingw-w64 & gcc-mingw-w64 appears to work.
 Please see [CMake Cross Compiling](https://cmake.org/cmake/help/latest/manual/cmake-toolchains.7.html#cross-compiling) for general information on CMake Toolchains.
 Some users have had success building assimp using MinGW on Linux using [polly](https://github.com/ruslo/polly/).
 The following toolchain, which is not maintained by assimp, seems to work on Linux: [linux-mingw-w64-gnuxx11.cmake](https://github.com/ruslo/polly/blob/master/linux-mingw-w64-gnuxx11.cmake)
 The following toolchain may or may not be helpful for building assimp using MinGW on Windows (untested):
 [mingw-cxx17.cmake](https://github.com/ruslo/polly/blob/master/mingw-cxx17.cmake)
 Besides the toolchain, compilation should be the same as for Linux / Unix.
 ## CMake build options
 The cmake-build-environment provides options to configure the build. The following options can be used:
 - **BUILD_SHARED_LIBS ( default ON )**: Generation of shared libs ( dll for windows, so for Linux ). Set this to OFF to get a static lib.
 - **BUILD_FRAMEWORK ( default OFF, MacOnly)**: Build package as Mac OS X Framework bundle
@ -55,4 +71,3 @@ The cmake-build-environment provides options to configure the build. The followi
 - **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.
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@ -106,7 +106,7 @@ OPTION ( BUILD_DOCS
  OFF
 )
 OPTION( INJECT_DEBUG_POSTFIX
-  "Inject debug postfix in .a/.so lib names"
+  "Inject debug postfix in .a/.so/.dll lib names"
  ON
 )
@ -127,12 +127,15 @@ if (WIN32)
  ADD_DEFINITIONS( -DWIN32_LEAN_AND_MEAN )
 endif()
 IF(MSVC)
  OPTION( ASSIMP_INSTALL_PDB
    "Install MSVC debug files."
    ON
  )
  IF(NOT (MSVC_VERSION LESS 1900))
    # Multibyte character set is deprecated since at least MSVC2015 (possibly earlier)
    ADD_DEFINITIONS( -DUNICODE -D_UNICODE )
  ENDIF()
 ENDIF(MSVC)
 IF (BUILD_FRAMEWORK)
@ -148,8 +151,8 @@ ELSE()
 ENDIF(NOT BUILD_SHARED_LIBS)
 # Define here the needed parameters
-SET (ASSIMP_VERSION_MAJOR 4)
+SET (ASSIMP_VERSION_MAJOR 5)
-SET (ASSIMP_VERSION_MINOR 1)
+SET (ASSIMP_VERSION_MINOR 0)
 SET (ASSIMP_VERSION_PATCH 0)
 SET (ASSIMP_VERSION ${ASSIMP_VERSION_MAJOR}.${ASSIMP_VERSION_MINOR}.${ASSIMP_VERSION_PATCH})
 SET (ASSIMP_SOVERSION 4)
@ -234,6 +237,11 @@ ELSEIF ( "${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang" )
  SET(CMAKE_CXX_FLAGS "-g -fvisibility=hidden -fPIC -fno-strict-aliasing -Wall -Wno-long-long -std=c++11 ${CMAKE_CXX_FLAGS}" )
  SET(CMAKE_C_FLAGS "-fPIC -fno-strict-aliasing ${CMAKE_C_FLAGS}")
 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()
  SET( CMAKE_CXX_FLAGS "-fvisibility=hidden -fno-strict-aliasing -Wall -Wno-long-long -std=c++11 -Wa,-mbig-obj ${CMAKE_CXX_FLAGS}" )
  SET(CMAKE_C_FLAGS "-fPIC -fno-strict-aliasing ${CMAKE_C_FLAGS} ")
  ADD_DEFINITIONS( -U__STRICT_ANSI__ )
@ -247,6 +255,7 @@ IF (CMAKE_BUILD_TYPE STREQUAL "Debug")
 ELSE()
  SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fembed-bitcode -O3")
  SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fembed-bitcode -O3")
  # Experimental for pdb generation
 ENDIF()
 ENDIF( IOS )
@ -301,7 +310,9 @@ SET( ASSIMP_INCLUDE_INSTALL_DIR "include" CACHE STRING
 SET( ASSIMP_BIN_INSTALL_DIR "bin" CACHE STRING
  "Path the tool executables are installed to." )
-IF (CMAKE_BUILD_TYPE STREQUAL "Debug")
+get_cmake_property(is_multi_config GENERATOR_IS_MULTI_CONFIG)
 IF (is_multi_config OR (CMAKE_BUILD_TYPE STREQUAL "Debug"))
  SET(CMAKE_DEBUG_POSTFIX "d" CACHE STRING "Debug Postfix for lib, samples and tools")
 ELSE()
  SET(CMAKE_DEBUG_POSTFIX "" CACHE STRING "Debug Postfix for lib, samples and tools")
@ -543,18 +554,22 @@ if(WIN32)
  if (CMAKE_SIZEOF_VOID_P EQUAL 8)
    SET(BIN_DIR "${PROJECT_SOURCE_DIR}/bin64/")
    SET(LIB_DIR "${PROJECT_SOURCE_DIR}/lib64/")
-  elseif()
+  else()
    SET(BIN_DIR "${PROJECT_SOURCE_DIR}/bin32/")
    SET(LIB_DIR "${PROJECT_SOURCE_DIR}/lib32/")
  ENDIF()
-  IF(MSVC12)
+  IF(MSVC_TOOLSET_VERSION)
-    SET(ASSIMP_MSVC_VERSION "vc120")
+    set(MSVC_PREFIX "vc${MSVC_TOOLSET_VERSION}")
-  ELSEIF(MSVC14)
+  ELSE()
-    SET(ASSIMP_MSVC_VERSION "vc140")
+    IF(MSVC12)
-  ELSEIF(MSVC15)
+      SET(ASSIMP_MSVC_VERSION "vc120")
-    SET(ASSIMP_MSVC_VERSION "vc141")
+    ELSEIF(MSVC14)
-  ENDIF(MSVC12)
+      SET(ASSIMP_MSVC_VERSION "vc140")
    ELSEIF(MSVC15)
      SET(ASSIMP_MSVC_VERSION "vc141")
    ENDIF(MSVC12)
  ENDIF()
  IF(MSVC12 OR MSVC14 OR MSVC15 )
    ADD_CUSTOM_TARGET(UpdateAssimpLibsDebugSymbolsAndDLLs COMMENT "Copying Assimp Libraries ..." VERBATIM)
--- a/Readme.md
+++ b/Readme.md
@ -17,6 +17,8 @@ A library to import and export various 3d-model-formats including scene-post-pro
 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.
 [Check the latest doc](https://assimp-docs.readthedocs.io/en/latest/).
 Additionally, assimp features various __mesh post processing tools__: normals and tangent space generation, triangulation, vertex cache locality optimization, removal of degenerate primitives and duplicate vertices, sorting by primitive type, merging of redundant materials and many more.
 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).
--- a/appveyor.yml
+++ b/appveyor.yml
@ -15,8 +15,8 @@ matrix:
 image:
  - Visual Studio 2013
-  - Previous Visual Studio 2015
+  - Visual Studio 2015
-  - Previous Visual Studio 2017
+  - Visual Studio 2017
 platform:
  - Win32
@ -28,10 +28,10 @@ install:
  - set PATH=C:\Ruby24-x64\bin;%PATH%
  - set CMAKE_DEFINES -DASSIMP_WERROR=ON
  - if "%APPVEYOR_BUILD_WORKER_IMAGE%"=="Visual Studio 2013" set CMAKE_GENERATOR_NAME=Visual Studio 12 2013
-  - if "%APPVEYOR_BUILD_WORKER_IMAGE%"=="Previous Visual Studio 2015" set CMAKE_GENERATOR_NAME=Visual Studio 14 2015
+  - if "%APPVEYOR_BUILD_WORKER_IMAGE%"=="Visual Studio 2015" set CMAKE_GENERATOR_NAME=Visual Studio 14 2015
-  - if "%APPVEYOR_BUILD_WORKER_IMAGE%"=="Previous Visual Studio 2017" set CMAKE_GENERATOR_NAME=Visual Studio 15 2017
+  - if "%APPVEYOR_BUILD_WORKER_IMAGE%"=="Visual Studio 2017" set CMAKE_GENERATOR_NAME=Visual Studio 15 2017
  - if "%platform%"=="x64" set CMAKE_GENERATOR_NAME=%CMAKE_GENERATOR_NAME% Win64
-  - cmake %CMAKE_DEFINES% -G "%CMAKE_GENERATOR_NAME%"
+  - cmake %CMAKE_DEFINES% -G "%CMAKE_GENERATOR_NAME%" .
  - set PATH=%PATH%;"C:\\Program Files (x86)\\Inno Setup 5"
  - ps: Invoke-WebRequest -Uri https://download.microsoft.com/download/5/7/b/57b2947c-7221-4f33-b35e-2fc78cb10df4/vc_redist.x64.exe -OutFile .\packaging\windows-innosetup\vc_redist.x64.exe
  - ps: Invoke-WebRequest -Uri https://download.microsoft.com/download/1/d/8/1d8137db-b5bb-4925-8c5d-927424a2e4de/vc_redist.x86.exe -OutFile .\packaging\windows-innosetup\vc_redist.x86.exe
@ -53,7 +53,13 @@ build:
  project: Assimp.sln
 after_build:
-  - if "%APPVEYOR_BUILD_WORKER_IMAGE%"=="Visual Studio 2017" iscc packaging\windows-innosetup\script.iss
+  - if "%APPVEYOR_BUILD_WORKER_IMAGE%"=="Visual Studio 2017" (
        if "%platform%"=="x64" (
            iscc packaging\windows-innosetup\script_x64.iss
        ) else (
            iscc packaging\windows-innosetup\script_x86.iss
        )
    )
  - 7z a assimp.7z bin\%CONFIGURATION%\* lib\%CONFIGURATION%\*
 test_script:
--- a/assimpTargets-release.cmake.in
+++ b/assimpTargets-release.cmake.in
@ -53,6 +53,7 @@ endif()
 set(CMAKE_IMPORT_FILE_VERSION)
 get_filename_component(ASSIMP_ROOT_DIR "@CMAKE_INSTALL_PREFIX@" REALPATH)
 set( ASSIMP_CXX_FLAGS ) # dynamically linked library
 set( ASSIMP_LINK_FLAGS "" )
 set( ASSIMP_LIBRARY_DIRS "${ASSIMP_ROOT_DIR}/@ASSIMP_LIB_INSTALL_DIR@")
--- a/code/ASELoader.cpp
+++ b/code/ASELoader.cpp
@ -1299,7 +1299,7 @@ void ASEImporter::BuildMaterialIndices()
        }
    }
-    // Dekete our temporary array
+    // Delete our temporary array
    delete[] pcIntMaterials;
 }
--- a/code/ASEParser.cpp
+++ b/code/ASEParser.cpp
@ -45,7 +45,6 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *  @brief Implementation of the ASE parser class
 */
 #ifndef ASSIMP_BUILD_NO_ASE_IMPORTER
 #ifndef ASSIMP_BUILD_NO_3DS_IMPORTER
--- a/code/ASEParser.h
+++ b/code/ASEParser.h
@ -188,10 +188,11 @@ struct Animation {
    } mRotationType, mScalingType, mPositionType;
    Animation() AI_NO_EXCEPT
-        :   mRotationType   (TRACK)
+    :   mRotationType   (TRACK)
-        ,   mScalingType    (TRACK)
+    ,   mScalingType    (TRACK)
-        ,   mPositionType   (TRACK)
+    ,   mPositionType   (TRACK) {
-    {}
+        // empty
    }
    //! List of track rotation keyframes
    std::vector< aiQuatKey > akeyRotations;
@ -243,7 +244,6 @@ struct BaseNode {
        mTargetPosition.x = qnan;
    }
    //! Name of the mesh
    std::string mName;
--- a/code/AssbinLoader.cpp
+++ b/code/AssbinLoader.cpp
@ -68,7 +68,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 using namespace Assimp;
 static const aiImporterDesc desc = {
-    ".assbin Importer",
+    "Assimp Binary Importer",
    "Gargaj / Conspiracy",
    "",
    "",
--- a/code/CMakeLists.txt
+++ b/code/CMakeLists.txt
@ -145,6 +145,10 @@ SET( Core_SRCS
  Assimp.cpp
 )
 IF(MSVC)
  list(APPEND Core_SRCS "res/assimp.rc")
 ENDIF(MSVC)
 SET( Logging_SRCS
  ${HEADER_PATH}/DefaultLogger.hpp
  ${HEADER_PATH}/LogStream.hpp
@ -800,6 +804,18 @@ ADD_ASSIMP_IMPORTER( MMD
  MMDVmdParser.h
 )
 # Workaround for issue #2406 - force problematic large file to be optimized to prevent string table overflow error
 # Used -Os instead of -O2 as previous issues had mentioned, since -Os is roughly speaking -O2, excluding any
 # optimizations that take up extra space. Given that the issue is a string table overflowing, -Os seemed appropriate
 # Also, I'm not positive if both link & compile flags are needed, but this hopefully ensures that the issue should not
 # recur for edge cases such as static builds.
 if ((CMAKE_COMPILER_IS_MINGW) AND (CMAKE_BUILD_TYPE MATCHES Debug))
  message("-- Applying MinGW StepFileGen1.cpp Debug Workaround")
  SET_SOURCE_FILES_PROPERTIES(Importer/StepFile/StepFileGen1.cpp PROPERTIES COMPILE_FLAGS -Os )
  SET_SOURCE_FILES_PROPERTIES(Importer/StepFile/StepFileGen1.cpp PROPERTIES LINK_FLAGS -Os )
  SET_SOURCE_FILES_PROPERTIES(Importer/StepFile/StepFileGen1.cpp PROPERTIES STATIC_LIBRARY_FLAGS -Os )
 endif()
 ADD_ASSIMP_IMPORTER( STEP
    STEPFile.h
    Importer/StepFile/StepFileImporter.h
@ -1033,6 +1049,10 @@ ENDIF (ASSIMP_BUILD_NONFREE_C4D_IMPORTER)
 if( MSVC )
  # in order to prevent DLL hell, each of the DLLs have to be suffixed with the major version and msvc prefix
  # CMake 3.12 added a variable for this
  if(MSVC_TOOLSET_VERSION)
    set(MSVC_PREFIX "vc${MSVC_TOOLSET_VERSION}")
  else()
  if( MSVC70 OR MSVC71 )
    set(MSVC_PREFIX "vc70")
  elseif( MSVC80 )
@ -1047,9 +1067,12 @@ if( MSVC )
    set(MSVC_PREFIX "vc120")
  elseif( MSVC14 )
    set(MSVC_PREFIX "vc140")
  elseif( MSVC15 )
    set(MSVC_PREFIX "vc141")
  else()
    set(MSVC_PREFIX "vc150")
  endif()
  endif()
  set(LIBRARY_SUFFIX "${ASSIMP_LIBRARY_SUFFIX}-${MSVC_PREFIX}-mt" CACHE STRING "the suffix for the assimp windows library")
 endif()
--- a/code/ColladaExporter.cpp
+++ b/code/ColladaExporter.cpp
@ -64,13 +64,11 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 using namespace Assimp;
-namespace Assimp
+namespace Assimp {
 {
 // ------------------------------------------------------------------------------------------------
 // Worker function for exporting a scene to Collada. Prototyped and registered in Exporter.cpp
-void ExportSceneCollada(const char* pFile, IOSystem* pIOSystem, const aiScene* pScene, const ExportProperties* /*pProperties*/)
+void ExportSceneCollada(const char* pFile, IOSystem* pIOSystem, const aiScene* pScene, const ExportProperties* /*pProperties*/) {
 {
    std::string path = DefaultIOSystem::absolutePath(std::string(pFile));
    std::string file = DefaultIOSystem::completeBaseName(std::string(pFile));
@ -93,12 +91,12 @@ void ExportSceneCollada(const char* pFile, IOSystem* pIOSystem, const aiScene* p
 } // end of namespace Assimp
 // ------------------------------------------------------------------------------------------------
 // Constructor for a specific scene to export
-ColladaExporter::ColladaExporter( const aiScene* pScene, IOSystem* pIOSystem, const std::string& path, const std::string& file) : mIOSystem(pIOSystem), mPath(path), mFile(file)
+ColladaExporter::ColladaExporter( const aiScene* pScene, IOSystem* pIOSystem, const std::string& path, const std::string& file) 
-{
+: mIOSystem(pIOSystem)
 , mPath(path)
 , mFile(file) {
    // make sure that all formatting happens using the standard, C locale and not the user's current locale
    mOutput.imbue( std::locale("C") );
    mOutput.precision(16);
@ -115,17 +113,15 @@ ColladaExporter::ColladaExporter( const aiScene* pScene, IOSystem* pIOSystem, co
 // ------------------------------------------------------------------------------------------------
 // Destructor
-ColladaExporter::~ColladaExporter()
+ColladaExporter::~ColladaExporter() {
-{
+    if ( mSceneOwned ) {
    if(mSceneOwned) {
        delete mScene;
    }
 }
 // ------------------------------------------------------------------------------------------------
 // Starts writing the contents
-void ColladaExporter::WriteFile()
+void ColladaExporter::WriteFile() {
 {
    // write the DTD
    mOutput << "<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\" ?>" << endstr;
    // COLLADA element start
@ -158,8 +154,7 @@ void ColladaExporter::WriteFile()
 // ------------------------------------------------------------------------------------------------
 // Writes the asset header
-void ColladaExporter::WriteHeader()
+void ColladaExporter::WriteHeader() {
 {
    static const ai_real epsilon = ai_real( 0.00001 );
    static const aiQuaternion x_rot(aiMatrix3x3(
        0, -1,  0,
@ -238,25 +233,64 @@ void ColladaExporter::WriteHeader()
    mOutput << startstr << "<contributor>" << endstr;
    PushTag();
-    aiMetadata* meta = mScene->mRootNode->mMetaData;
+    // If no Scene metadata, use root node metadata
    aiMetadata* meta = mScene->mMetaData;
    if (nullptr == meta) {
        meta = mScene->mRootNode->mMetaData;
    }
    aiString value;
-    if (!meta || !meta->Get("Author", value))
+    if (!meta || !meta->Get("Author", value)) {
        mOutput << startstr << "<author>" << "Assimp" << "</author>" << endstr;
-    else
+    } else {
        mOutput << startstr << "<author>" << XMLEscape(value.C_Str()) << "</author>" << endstr;
    }
-    if (!meta || !meta->Get("AuthoringTool", value))
+    if (nullptr == meta || !meta->Get("AuthoringTool", value)) {
        mOutput << startstr << "<authoring_tool>" << "Assimp Exporter" << "</authoring_tool>" << endstr;
-    else
+    } else {
        mOutput << startstr << "<authoring_tool>" << XMLEscape(value.C_Str()) << "</authoring_tool>" << endstr;
    }
-    //mOutput << startstr << "<author>" << mScene->author.C_Str() << "</author>" << endstr;
+    if (meta) {
-    //mOutput << startstr << "<authoring_tool>" << mScene->authoringTool.C_Str() << "</authoring_tool>" << endstr;
+        if (meta->Get("Comments", value)) {
            mOutput << startstr << "<comments>" << XMLEscape(value.C_Str()) << "</comments>" << endstr;
        }
        if (meta->Get("Copyright", value)) {
            mOutput << startstr << "<copyright>" << XMLEscape(value.C_Str()) << "</copyright>" << endstr;
        }
        if (meta->Get("SourceData", value)) {
            mOutput << startstr << "<source_data>" << XMLEscape(value.C_Str()) << "</source_data>" << endstr;
        }
    }
    PopTag();
    mOutput << startstr << "</contributor>" << endstr;
-    mOutput << startstr << "<created>" << date_str << "</created>" << endstr;
+
    if (nullptr == meta || !meta->Get("Created", value)) {
        mOutput << startstr << "<created>" << date_str << "</created>" << endstr;
    } else {
        mOutput << startstr << "<created>" << XMLEscape(value.C_Str()) << "</created>" << endstr;
    }
    // Modified date is always the date saved
    mOutput << startstr << "<modified>" << date_str << "</modified>" << endstr;
    if (meta) {
        if (meta->Get("Keywords", value)) {
            mOutput << startstr << "<keywords>" << XMLEscape(value.C_Str()) << "</keywords>" << endstr;
        }
        if (meta->Get("Revision", value)) {
            mOutput << startstr << "<revision>" << XMLEscape(value.C_Str()) << "</revision>" << endstr;
        }
        if (meta->Get("Subject", value)) {
            mOutput << startstr << "<subject>" << XMLEscape(value.C_Str()) << "</subject>" << endstr;
        }
        if (meta->Get("Title", value)) {
            mOutput << startstr << "<title>" << XMLEscape(value.C_Str()) << "</title>" << endstr;
        }
    }
    mOutput << startstr << "<unit name=\"meter\" meter=\"" << scale << "\" />" << endstr;
    mOutput << startstr << "<up_axis>" << up_axis << "</up_axis>" << endstr;
    PopTag();
@ -269,12 +303,15 @@ void ColladaExporter::WriteTextures() {
    static const unsigned int buffer_size = 1024;
    char str[buffer_size];
-    if(mScene->HasTextures()) {
+    if (mScene->HasTextures()) {
        for(unsigned int i = 0; i < mScene->mNumTextures; i++) {
            // It would be great to be able to create a directory in portable standard C++, but it's not the case,
            // so we just write the textures in the current directory.
            aiTexture* texture = mScene->mTextures[i];
            if ( nullptr == texture ) {
                continue;
            }
            ASSIMP_itoa10(str, buffer_size, i + 1);
@ -428,6 +465,7 @@ void ColladaExporter::WritePointLight(const aiLight *const light){
    mOutput << startstr << "</point>" << endstr;
 }
 void ColladaExporter::WriteDirectionalLight(const aiLight *const light){
    const aiColor3D &color=  light->mColorDiffuse;
    mOutput << startstr << "<directional>" << endstr;
@ -440,6 +478,7 @@ void ColladaExporter::WriteDirectionalLight(const aiLight *const light){
    mOutput << startstr << "</directional>" << endstr;
 }
 void ColladaExporter::WriteSpotLight(const aiLight *const light){
    const aiColor3D &color=  light->mColorDiffuse;
@ -496,18 +535,16 @@ void ColladaExporter::WriteAmbienttLight(const aiLight *const light){
 // ------------------------------------------------------------------------------------------------
 // Reads a single surface entry from the given material keys
-void ColladaExporter::ReadMaterialSurface( Surface& poSurface, const aiMaterial* pSrcMat, aiTextureType pTexture, const char* pKey, size_t pType, size_t pIndex)
+void ColladaExporter::ReadMaterialSurface( Surface& poSurface, const aiMaterial* pSrcMat, 
-{
+                                          aiTextureType pTexture, const char* pKey, size_t pType, size_t pIndex) {
-  if( pSrcMat->GetTextureCount( pTexture) > 0 )
+  if( pSrcMat->GetTextureCount( pTexture) > 0 ) {
  {
    aiString texfile;
    unsigned int uvChannel = 0;
    pSrcMat->GetTexture( pTexture, 0, &texfile, NULL, &uvChannel);
    std::string index_str(texfile.C_Str());
-    if(index_str.size() != 0 && index_str[0] == '*')
+    if(index_str.size() != 0 && index_str[0] == '*') {
    {
        unsigned int index;
        index_str = index_str.substr(1, std::string::npos);
@ -525,15 +562,13 @@ void ColladaExporter::ReadMaterialSurface( Surface& poSurface, const aiMaterial*
        } else {
            throw DeadlyExportError("could not find embedded texture at index " + index_str);
        }
-    } else
+    } else {
    {
        poSurface.texture = texfile.C_Str();
    }
    poSurface.channel = uvChannel;
    poSurface.exist = true;
-  } else
+  } else {
  {
    if( pKey )
      poSurface.exist = pSrcMat->Get( pKey, static_cast<unsigned int>(pType), static_cast<unsigned int>(pIndex), poSurface.color) == aiReturn_SUCCESS;
  }
@ -541,15 +576,13 @@ void ColladaExporter::ReadMaterialSurface( Surface& poSurface, const aiMaterial*
 // ------------------------------------------------------------------------------------------------
 // Reimplementation of isalnum(,C locale), because AppVeyor does not see standard version.
-static bool isalnum_C(char c)
+static bool isalnum_C(char c) {
 {
  return ( nullptr != strchr("0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz",c) );
 }
 // ------------------------------------------------------------------------------------------------
 // Writes an image entry for the given surface
-void ColladaExporter::WriteImageEntry( const Surface& pSurface, const std::string& pNameAdd)
+void ColladaExporter::WriteImageEntry( const Surface& pSurface, const std::string& pNameAdd) {
 {
  if( !pSurface.texture.empty() )
  {
    mOutput << startstr << "<image id=\"" << XMLEscape(pNameAdd) << "\">" << endstr;
@ -803,8 +836,9 @@ void ColladaExporter::WriteControllerLibrary()
    mOutput << startstr << "<library_controllers>" << endstr;
    PushTag();
-    for( size_t a = 0; a < mScene->mNumMeshes; ++a)
+    for( size_t a = 0; a < mScene->mNumMeshes; ++a) {
        WriteController( a);
    }
    PopTag();
    mOutput << startstr << "</library_controllers>" << endstr;
--- a/code/ColladaLoader.cpp
+++ b/code/ColladaLoader.cpp
@ -207,6 +207,17 @@ void ColladaLoader::InternReadFile( const std::string& pFile, aiScene* pScene, I
                0,  0,  0,  1);
    }
    // Store scene metadata
    if (!parser.mAssetMetaData.empty()) {
        const size_t numMeta(parser.mAssetMetaData.size());
        pScene->mMetaData = aiMetadata::Alloc(static_cast<unsigned int>(numMeta));
        size_t i = 0;
        for (auto it = parser.mAssetMetaData.cbegin(); it != parser.mAssetMetaData.cend(); ++it, ++i)
        {
            pScene->mMetaData->Set(static_cast<unsigned int>(i), (*it).first, (*it).second);
        }
    }
    // store all meshes
    StoreSceneMeshes( pScene);
--- a/code/ColladaParser.cpp
+++ b/code/ColladaParser.cpp
@ -264,14 +264,19 @@ void ColladaParser::ReadAssetInfo()
                // check element end
                TestClosing( "up_axis");
-            } else
+            }
            else if(IsElement("contributor"))
            {
-                SkipElement();
+                ReadContributorInfo();
            }
            else
            {
                ReadMetaDataItem(mAssetMetaData);
            }
        }
        else if( mReader->getNodeType() == irr::io::EXN_ELEMENT_END)
        {
-            if( strcmp( mReader->getNodeName(), "asset") != 0)
+            if (strcmp( mReader->getNodeName(), "asset") != 0)
                ThrowException( "Expected end of <asset> element.");
            break;
@ -279,6 +284,75 @@ void ColladaParser::ReadAssetInfo()
    }
 }
 // ------------------------------------------------------------------------------------------------
 // Reads the contributor info
 void ColladaParser::ReadContributorInfo()
 {
    if (mReader->isEmptyElement())
        return;
    while (mReader->read())
    {
        if (mReader->getNodeType() == irr::io::EXN_ELEMENT)
        {
            ReadMetaDataItem(mAssetMetaData);
        }
        else if (mReader->getNodeType() == irr::io::EXN_ELEMENT_END)
        {
            if (strcmp(mReader->getNodeName(), "contributor") != 0)
                ThrowException("Expected end of <contributor> element.");
            break;
        }
    }
 }
 // ------------------------------------------------------------------------------------------------
 // Reads a single string metadata item
 void ColladaParser::ReadMetaDataItem(StringMetaData &metadata)
 {
    // Metadata such as created, keywords, subject etc
    const char* key_char = mReader->getNodeName();
    if (key_char != nullptr)
    {
        const std::string key_str(key_char);
        const char* value_char = TestTextContent();
        if (value_char != nullptr)
        {
            std::string camel_key_str = key_str;
            ToCamelCase(camel_key_str);
            aiString aistr;
            aistr.Set(value_char);
            metadata.emplace(camel_key_str, aistr);
            TestClosing(key_str.c_str());
        }
        else
            SkipElement();
    }
    else
        SkipElement();
 }
 // ------------------------------------------------------------------------------------------------
 // Convert underscore_seperated to CamelCase: "authoring_tool" becomes "AuthoringTool"
 void ColladaParser::ToCamelCase(std::string &text)
 {
    if (text.empty())
        return;
    // Capitalise first character
    text[0] = ToUpper(text[0]);
    for (auto it = text.begin(); it != text.end(); /*iterated below*/)
    {
        if ((*it) == '_')
        {
            it = text.erase(it);
            if (it != text.end())
                (*it) = ToUpper(*it);
        }
        else
            ++it;
    }
 }
 // ------------------------------------------------------------------------------------------------
 // Reads the animation clips
 void ColladaParser::ReadAnimationClipLibrary()
--- a/code/ColladaParser.h
+++ b/code/ColladaParser.h
@ -66,6 +66,9 @@ namespace Assimp
        friend class ColladaLoader;
    protected:
        /** Map for generic metadata as aiString */
        typedef std::map<std::string, aiString> StringMetaData;
        /** Constructor from XML file */
        ColladaParser( IOSystem* pIOHandler, const std::string& pFile);
@ -81,6 +84,15 @@ namespace Assimp
        /** Reads asset information such as coordinate system information and legal blah */
        void ReadAssetInfo();
        /** Reads contributor information such as author and legal blah */
        void ReadContributorInfo();
        /** Reads generic metadata into provided map */
        void ReadMetaDataItem(StringMetaData &metadata);
        /** Convert underscore_seperated to CamelCase "authoring_tool" becomes "AuthoringTool" */
        static void ToCamelCase(std::string &text);
        /** Reads the animation library */
        void ReadAnimationLibrary();
@ -343,6 +355,9 @@ namespace Assimp
        /** Which is the up vector */
        enum { UP_X, UP_Y, UP_Z } mUpDirection;
        /** Asset metadata (global for scene) */
        StringMetaData mAssetMetaData;
        /** Collada file format version */
        Collada::FormatVersion mFormat;
    };
--- a/code/Exporter.cpp
+++ b/code/Exporter.cpp
@ -288,7 +288,7 @@ void Exporter::SetProgressHandler(ProgressHandler* pHandler) {
 // ------------------------------------------------------------------------------------------------
 const aiExportDataBlob* Exporter::ExportToBlob( const aiScene* pScene, const char* pFormatId,
-                                                unsigned int, const ExportProperties* /*pProperties*/ ) {
+                                                unsigned int pPreprocessing, const ExportProperties* pProperties) {
    if (pimpl->blob) {
        delete pimpl->blob;
        pimpl->blob = nullptr;
@ -298,7 +298,7 @@ const aiExportDataBlob* Exporter::ExportToBlob( const aiScene* pScene, const cha
    BlobIOSystem* blobio = new BlobIOSystem();
    pimpl->mIOSystem = std::shared_ptr<IOSystem>( blobio );
-    if (AI_SUCCESS != Export(pScene,pFormatId,blobio->GetMagicFileName())) {
+    if (AI_SUCCESS != Export(pScene,pFormatId,blobio->GetMagicFileName(), pPreprocessing, pProperties)) {
        pimpl->mIOSystem = old;
        return nullptr;
    }
--- a/code/FBXCommon.h
+++ b/code/FBXCommon.h
@ -47,7 +47,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #ifndef ASSIMP_BUILD_NO_FBX_EXPORTER
-
+namespace Assimp {
 namespace FBX
 {
    const std::string NULL_RECORD = { // 13 null bytes
@ -80,7 +80,7 @@ namespace FBX
        TransformInheritance_MAX // end-of-enum sentinel
    };
 }
-
+}
 #endif // ASSIMP_BUILD_NO_FBX_EXPORTER
 #endif // AI_FBXCOMMON_H_INC
--- a/code/FBXConverter.cpp
+++ b/code/FBXConverter.cpp
@ -67,6 +67,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include <sstream>
 #include <iomanip>
 namespace Assimp {
    namespace FBX {
@ -76,7 +77,7 @@ namespace Assimp {
 #define CONVERT_FBX_TIME(time) static_cast<double>(time) / 46186158000L
-        FBXConverter::FBXConverter(aiScene* out, const Document& doc)
+        FBXConverter::FBXConverter(aiScene* out, const Document& doc, bool removeEmptyBones, FbxUnit unit )
        : defaultMaterialIndex()
        , lights()
        , cameras()
@ -89,7 +90,9 @@ namespace Assimp {
        , mNodeNames()
        , anim_fps()
        , out(out)
-        , doc(doc) {
+        , doc(doc)
        , mRemoveEmptyBones( removeEmptyBones )
        , mCurrentUnit(FbxUnit::cm) {
            // 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.
@ -117,6 +120,7 @@ namespace Assimp {
            ConvertGlobalSettings();
            TransferDataToScene();
            ConvertToUnitScale(unit);
            // if we didn't read any meshes set the AI_SCENE_FLAGS_INCOMPLETE
            // to make sure the scene passes assimp's validation. FBX files
@ -387,6 +391,7 @@ namespace Assimp {
                break;
            default:
                ai_assert(false);
                break;
            }
        }
@ -977,7 +982,9 @@ namespace Assimp {
            unsigned int epcount = 0;
            for (unsigned i = 0; i < indices.size(); i++)
            {
-                if (indices[i] < 0) epcount++;
+                if (indices[i] < 0) {
                    epcount++;
                }
            }
            unsigned int pcount = static_cast<unsigned int>( indices.size() );
            unsigned int scount = out_mesh->mNumFaces = pcount - epcount;
@ -1407,7 +1414,7 @@ namespace Assimp {
                    const WeightIndexArray& indices = cluster->GetIndices();
-                    if (indices.empty()) {
+                    if (indices.empty() && mRemoveEmptyBones ) {
                        continue;
                    }
@ -1439,13 +1446,11 @@ namespace Assimp {
                                if (index_out_indices.back() == no_index_sentinel) {
                                    index_out_indices.back() = out_indices.size();
                                }
                                if (no_mat_check) {
                                    out_indices.push_back(out_idx[i]);
-                                }
+                                } else {
                                else {
                                    // this extra lookup is in O(logn), so the entire algorithm becomes O(nlogn)
                                    const std::vector<unsigned int>::iterator it = std::lower_bound(
                                        outputVertStartIndices->begin(),
@ -1465,7 +1470,7 @@ namespace Assimp {
                    // if we found at least one, generate the output bones
                    // XXX this could be heavily simplified by collecting the bone
                    // data in a single step.
-                    if (ok) {
+                    if (ok && mRemoveEmptyBones) {
                        ConvertCluster(bones, model, *cluster, out_indices, index_out_indices,
                            count_out_indices, node_global_transform);
                    }
@ -1596,6 +1601,13 @@ namespace Assimp {
                out_mat->AddProperty(&str, AI_MATKEY_NAME);
            }
            // Set the shading mode as best we can: The FBX specification only mentions Lambert and Phong, and only Phong is mentioned in Assimp's aiShadingMode enum.
            if (material.GetShadingModel() == "phong")
            {
                aiShadingMode shadingMode = aiShadingMode_Phong;
                out_mat->AddProperty<aiShadingMode>(&shadingMode, 1, AI_MATKEY_SHADING_MODEL);               
            }
            // shading stuff and colors
            SetShadingPropertiesCommon(out_mat, props);
            SetShadingPropertiesRaw( out_mat, props, material.Textures(), mesh );
@ -3407,8 +3419,9 @@ void FBXConverter::SetShadingPropertiesRaw(aiMaterial* out_mat, const PropertyTa
            na->mNumScalingKeys = static_cast<unsigned int>(keys.size());
            na->mScalingKeys = new aiVectorKey[keys.size()];
-            if (keys.size() > 0)
+            if (keys.size() > 0) {
                InterpolateKeys(na->mScalingKeys, keys, inputs, aiVector3D(1.0f, 1.0f, 1.0f), maxTime, minTime);
            }
        }
        void FBXConverter::ConvertTranslationKeys(aiNodeAnim* na, const std::vector<const AnimationCurveNode*>& nodes,
@ -3472,6 +3485,46 @@ void FBXConverter::SetShadingPropertiesRaw(aiMaterial* out_mat, const PropertyTa
            out->mMetaData->Set(14, "CustomFrameRate", doc.GlobalSettings().CustomFrameRate());
        }
        void FBXConverter::ConvertToUnitScale( FbxUnit unit ) {
            if (mCurrentUnit == unit) {
                return;
            }
            ai_real scale = 1.0;
            if (mCurrentUnit == FbxUnit::cm) {
                if (unit == FbxUnit::m) {
                    scale = (ai_real)0.01;
                } else if (unit == FbxUnit::km) {
                    scale = (ai_real)0.00001;
                }
            } else if (mCurrentUnit == FbxUnit::m) {
                if (unit == FbxUnit::cm) {
                    scale = (ai_real)100.0;
                } else if (unit == FbxUnit::km) {
                    scale = (ai_real)0.001;
                }
            } else if (mCurrentUnit == FbxUnit::km) {
                if (unit == FbxUnit::cm) {
                    scale = (ai_real)100000.0;
                } else if (unit == FbxUnit::m) {
                    scale = (ai_real)1000.0;
                }
            }
            for (auto mesh : meshes) {
                if (nullptr == mesh) {
                    continue;
                }
                if (mesh->HasPositions()) {
                    for (unsigned int i = 0; i < mesh->mNumVertices; ++i) {
                        aiVector3D &pos = mesh->mVertices[i];
                        pos *= scale;
                    }
                }
            }
        }
        void FBXConverter::TransferDataToScene()
        {
            ai_assert(!out->mMeshes);
@ -3525,9 +3578,9 @@ void FBXConverter::SetShadingPropertiesRaw(aiMaterial* out_mat, const PropertyTa
        }
        // ------------------------------------------------------------------------------------------------
-        void ConvertToAssimpScene(aiScene* out, const Document& doc)
+        void ConvertToAssimpScene(aiScene* out, const Document& doc, bool removeEmptyBones, FbxUnit unit)
        {
-            FBXConverter converter(out, doc);
+            FBXConverter converter(out, doc, removeEmptyBones, unit);
        }
    } // !FBX
--- a/code/FBXConverter.h
+++ b/code/FBXConverter.h
@ -76,12 +76,22 @@ namespace FBX {
 class Document;
 enum class FbxUnit {
    cm = 0,
    m,
    km,
    NumUnits,
    Undefined
 };
 /** 
 *  Convert a FBX #Document to #aiScene
 *  @param out Empty scene to be populated
 *  @param doc Parsed FBX document
 *  @param removeEmptyBones Will remove bones, which do not have any references to vertices.
 */
-void ConvertToAssimpScene(aiScene* out, const Document& doc);
+void ConvertToAssimpScene(aiScene* out, const Document& doc, bool removeEmptyBones, FbxUnit unit);
 /** Dummy class to encapsulate the conversion process */
 class FBXConverter {
@ -112,7 +122,7 @@ public:
    };
 public:
-    FBXConverter(aiScene* out, const Document& doc);
+    FBXConverter(aiScene* out, const Document& doc, bool removeEmptyBones, FbxUnit unit);
    ~FBXConverter();
 private:
@ -414,6 +424,10 @@ private:
    void ConvertGlobalSettings();
    // ------------------------------------------------------------------------------------------------
    //  Will perform the conversion from a given unit to the requested unit.
    void ConvertToUnitScale(FbxUnit unit);
    // ------------------------------------------------------------------------------------------------
    // copy generated meshes, animations, lights, cameras and textures to the output scene
    void TransferDataToScene();
@ -453,6 +467,10 @@ private:
    aiScene* const out;
    const FBX::Document& doc;
    bool mRemoveEmptyBones;
    FbxUnit mCurrentUnit;
 };
 }
--- a/code/FBXExportNode.cpp
+++ b/code/FBXExportNode.cpp
@ -54,6 +54,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include <sstream> // ostringstream
 #include <memory> // shared_ptr
 namespace Assimp {
 // AddP70<type> helpers... there's no usable pattern here,
 // so all are defined as separate functions.
 // Even "animatable" properties are often completely different
@ -252,7 +253,8 @@ void FBX::Node::DumpChildren(
    } else {
        std::ostringstream ss;
        DumpChildrenAscii(ss, indent);
-        s.PutString(ss.str());
+        if (ss.tellp() > 0)
            s.PutString(ss.str());
    }
 }
@ -266,7 +268,8 @@ void FBX::Node::End(
    } else {
        std::ostringstream ss;
        EndAscii(ss, indent, has_children);
-        s.PutString(ss.str());
+        if (ss.tellp() > 0)
            s.PutString(ss.str());
    }
 }
@ -367,7 +370,7 @@ void FBX::Node::EndBinary(
    bool has_children
 ) {
    // if there were children, add a null record
-    if (has_children) { s.PutString(FBX::NULL_RECORD); }
+    if (has_children) { s.PutString(Assimp::FBX::NULL_RECORD); }
    // now go back and write initial pos
    this->end_pos = s.Tell();
@ -563,6 +566,6 @@ void FBX::Node::WritePropertyNode(
        FBX::Node::WritePropertyNodeAscii(name, v, s, indent);
    }
 }
-
+}
 #endif // ASSIMP_BUILD_NO_FBX_EXPORTER
 #endif // ASSIMP_BUILD_NO_EXPORT
--- a/code/FBXExportNode.h
+++ b/code/FBXExportNode.h
@ -54,16 +54,16 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include <string>
 #include <vector>
 namespace Assimp {
 namespace FBX {
    class Node;
 }
-class FBX::Node
+class FBX::Node {
-{
+public: 
 public: // public data members
    // TODO: accessors
    std::string name; // node name
-    std::vector<FBX::Property> properties; // node properties
+    std::vector<FBX::FBXExportProperty> properties; // node properties
    std::vector<FBX::Node> children; // child nodes
    // some nodes always pretend they have children...
@ -214,7 +214,7 @@ public: // static member functions
        Assimp::StreamWriterLE& s,
        bool binary, int indent
    ) {
-        FBX::Property p(value);
+        FBX::FBXExportProperty p(value);
        FBX::Node node(name, p);
        node.Dump(s, binary, indent);
    }
@ -264,7 +264,7 @@ private: // static helper functions
    );
 };
-
+}
 #endif // ASSIMP_BUILD_NO_FBX_EXPORTER
--- a/code/FBXExportProperty.cpp
+++ b/code/FBXExportProperty.cpp
@ -52,187 +52,210 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include <locale>
 #include <sstream> // ostringstream
 namespace Assimp {
 namespace FBX {
 // constructors for single element properties
-FBX::Property::Property(bool v)
+FBXExportProperty::FBXExportProperty(bool v)
-    : type('C'), data(1)
+: type('C')
-{
+, data(1) {
-    data = {uint8_t(v)};
+    data = {
        uint8_t(v)
    };
 }
-FBX::Property::Property(int16_t v) : type('Y'), data(2)
+FBXExportProperty::FBXExportProperty(int16_t v)
-{
+: type('Y')
 , data(2) {
    uint8_t* d = data.data();
    (reinterpret_cast<int16_t*>(d))[0] = v;
 }
-FBX::Property::Property(int32_t v) : type('I'), data(4)
+FBXExportProperty::FBXExportProperty(int32_t v)
-{
+: type('I')
 , data(4) {
    uint8_t* d = data.data();
    (reinterpret_cast<int32_t*>(d))[0] = v;
 }
-FBX::Property::Property(float v) : type('F'), data(4)
+FBXExportProperty::FBXExportProperty(float v)
-{
+: type('F')
 , data(4) {
    uint8_t* d = data.data();
    (reinterpret_cast<float*>(d))[0] = v;
 }
-FBX::Property::Property(double v) : type('D'), data(8)
+FBXExportProperty::FBXExportProperty(double v)
-{
+: type('D')
 , data(8) {
    uint8_t* d = data.data();
    (reinterpret_cast<double*>(d))[0] = v;
 }
-FBX::Property::Property(int64_t v) : type('L'), data(8)
+FBXExportProperty::FBXExportProperty(int64_t v)
-{
+: type('L')
 , data(8) {
    uint8_t* d = data.data();
    (reinterpret_cast<int64_t*>(d))[0] = v;
 }
 // constructors for array-type properties
-FBX::Property::Property(const char* c, bool raw)
+FBXExportProperty::FBXExportProperty(const char* c, bool raw)
-    : Property(std::string(c), raw)
+: FBXExportProperty(std::string(c), raw) {
-{}
+    // empty
 }
 // strings can either be saved as "raw" (R) data, or "string" (S) data
-FBX::Property::Property(const std::string& s, bool raw)
+FBXExportProperty::FBXExportProperty(const std::string& s, bool raw)
-    : type(raw ? 'R' : 'S'), data(s.size())
+: type(raw ? 'R' : 'S')
-{
+, data(s.size()) {
    for (size_t i = 0; i < s.size(); ++i) {
        data[i] = uint8_t(s[i]);
    }
 }
-FBX::Property::Property(const std::vector<uint8_t>& r)
+FBXExportProperty::FBXExportProperty(const std::vector<uint8_t>& r)
-    : type('R'), data(r)
+: type('R')
-{}
+, data(r) {
    // empty
 }
-FBX::Property::Property(const std::vector<int32_t>& va)
+FBXExportProperty::FBXExportProperty(const std::vector<int32_t>& va)
-    : type('i'), data(4*va.size())
+: type('i')
-{
+, data(4 * va.size() ) {
    int32_t* d = reinterpret_cast<int32_t*>(data.data());
-    for (size_t i = 0; i < va.size(); ++i) { d[i] = va[i]; }
+    for (size_t i = 0; i < va.size(); ++i) {
        d[i] = va[i];
    }
 }
-FBX::Property::Property(const std::vector<int64_t>& va)
+FBXExportProperty::FBXExportProperty(const std::vector<int64_t>& va)
-    : type('l'), data(8*va.size())
+: type('l')
-{
+, data(8 * va.size()) {
    int64_t* d = reinterpret_cast<int64_t*>(data.data());
-    for (size_t i = 0; i < va.size(); ++i) { d[i] = va[i]; }
+    for (size_t i = 0; i < va.size(); ++i) {
        d[i] = va[i];
    }
 }
-FBX::Property::Property(const std::vector<float>& va)
+FBXExportProperty::FBXExportProperty(const std::vector<float>& va)
-    : type('f'), data(4*va.size())
+: type('f')
-{
+, data(4 * va.size()) {
    float* d = reinterpret_cast<float*>(data.data());
-    for (size_t i = 0; i < va.size(); ++i) { d[i] = va[i]; }
+    for (size_t i = 0; i < va.size(); ++i) {
        d[i] = va[i];
    }
 }
-FBX::Property::Property(const std::vector<double>& va)
+FBXExportProperty::FBXExportProperty(const std::vector<double>& va)
-    : type('d'), data(8*va.size())
+: type('d')
-{
+, data(8 * va.size()) {
    double* d = reinterpret_cast<double*>(data.data());
-    for (size_t i = 0; i < va.size(); ++i) { d[i] = va[i]; }
+    for (size_t i = 0; i < va.size(); ++i) {
        d[i] = va[i];
    }
 }
-FBX::Property::Property(const aiMatrix4x4& vm)
+FBXExportProperty::FBXExportProperty(const aiMatrix4x4& vm)
-    : type('d'), data(8*16)
+: type('d')
-{
+, data(8 * 16) {
    double* d = reinterpret_cast<double*>(data.data());
    for (unsigned int c = 0; c < 4; ++c) {
        for (unsigned int r = 0; r < 4; ++r) {
-            d[4*c+r] = vm[r][c];
+            d[4 * c + r] = vm[r][c];
        }
    }
 }
 // public member functions
-size_t FBX::Property::size()
+size_t FBXExportProperty::size() {
 {
    switch (type) {
-    case 'C': case 'Y': case 'I': case 'F': case 'D': case 'L':
+        case 'C':
-        return data.size() + 1;
+        case 'Y':
-    case 'S': case 'R':
+        case 'I':
-        return data.size() + 5;
+        case 'F':
-    case 'i': case 'd':
+        case 'D':
-        return data.size() + 13;
+        case 'L':
-    default:
+            return data.size() + 1;
-        throw DeadlyExportError("Requested size on property of unknown type");
+        case 'S':
        case 'R':
            return data.size() + 5;
        case 'i':
        case 'd':
            return data.size() + 13;
        default:
            throw DeadlyExportError("Requested size on property of unknown type");
    }
 }
-void FBX::Property::DumpBinary(Assimp::StreamWriterLE &s)
+void FBXExportProperty::DumpBinary(Assimp::StreamWriterLE& s) {
 {
    s.PutU1(type);
    uint8_t* d = data.data();
    size_t N;
    switch (type) {
-    case 'C': s.PutU1(*(reinterpret_cast<uint8_t*>(d))); return;
+        case 'C': s.PutU1(*(reinterpret_cast<uint8_t*>(d))); return;
-    case 'Y': s.PutI2(*(reinterpret_cast<int16_t*>(d))); return;
+        case 'Y': s.PutI2(*(reinterpret_cast<int16_t*>(d))); return;
-    case 'I': s.PutI4(*(reinterpret_cast<int32_t*>(d))); return;
+        case 'I': s.PutI4(*(reinterpret_cast<int32_t*>(d))); return;
-    case 'F': s.PutF4(*(reinterpret_cast<float*>(d))); return;
+        case 'F': s.PutF4(*(reinterpret_cast<float*>(d))); return;
-    case 'D': s.PutF8(*(reinterpret_cast<double*>(d))); return;
+        case 'D': s.PutF8(*(reinterpret_cast<double*>(d))); return;
-    case 'L': s.PutI8(*(reinterpret_cast<int64_t*>(d))); return;
+        case 'L': s.PutI8(*(reinterpret_cast<int64_t*>(d))); return;
-    case 'S':
+        case 'S':
-    case 'R':
+        case 'R':
-        s.PutU4(uint32_t(data.size()));
+            s.PutU4(uint32_t(data.size()));
-        for (size_t i = 0; i < data.size(); ++i) { s.PutU1(data[i]); }
+            for (size_t i = 0; i < data.size(); ++i) { s.PutU1(data[i]); }
-        return;
+            return;
-    case 'i':
+        case 'i':
-        N = data.size() / 4;
+            N = data.size() / 4;
-        s.PutU4(uint32_t(N)); // number of elements
+            s.PutU4(uint32_t(N)); // number of elements
-        s.PutU4(0); // no encoding (1 would be zip-compressed)
+            s.PutU4(0); // no encoding (1 would be zip-compressed)
-        // TODO: compress if large?
+            // TODO: compress if large?
-        s.PutU4(uint32_t(data.size())); // data size
+            s.PutU4(uint32_t(data.size())); // data size
-        for (size_t i = 0; i < N; ++i) {
+            for (size_t i = 0; i < N; ++i) {
-            s.PutI4((reinterpret_cast<int32_t*>(d))[i]);
+                s.PutI4((reinterpret_cast<int32_t*>(d))[i]);
-        }
+            }
-        return;
+            return;
-    case 'l':
+        case 'l':
-        N = data.size() / 8;
+            N = data.size() / 8;
-        s.PutU4(uint32_t(N)); // number of elements
+            s.PutU4(uint32_t(N)); // number of elements
-        s.PutU4(0); // no encoding (1 would be zip-compressed)
+            s.PutU4(0); // no encoding (1 would be zip-compressed)
-        // TODO: compress if large?
+            // TODO: compress if large?
-        s.PutU4(uint32_t(data.size())); // data size
+            s.PutU4(uint32_t(data.size())); // data size
-        for (size_t i = 0; i < N; ++i) {
+            for (size_t i = 0; i < N; ++i) {
-            s.PutI8((reinterpret_cast<int64_t*>(d))[i]);
+                s.PutI8((reinterpret_cast<int64_t*>(d))[i]);
-        }
+            }
-        return;
+            return;
-    case 'f':
+        case 'f':
-        N = data.size() / 4;
+            N = data.size() / 4;
-        s.PutU4(uint32_t(N)); // number of elements
+            s.PutU4(uint32_t(N)); // number of elements
-        s.PutU4(0); // no encoding (1 would be zip-compressed)
+            s.PutU4(0); // no encoding (1 would be zip-compressed)
-        // TODO: compress if large?
+            // TODO: compress if large?
-        s.PutU4(uint32_t(data.size())); // data size
+            s.PutU4(uint32_t(data.size())); // data size
-        for (size_t i = 0; i < N; ++i) {
+            for (size_t i = 0; i < N; ++i) {
-            s.PutF4((reinterpret_cast<float*>(d))[i]);
+                s.PutF4((reinterpret_cast<float*>(d))[i]);
-        }
+            }
-        return;
+            return;
-    case 'd':
+        case 'd':
-        N = data.size() / 8;
+            N = data.size() / 8;
-        s.PutU4(uint32_t(N)); // number of elements
+            s.PutU4(uint32_t(N)); // number of elements
-        s.PutU4(0); // no encoding (1 would be zip-compressed)
+            s.PutU4(0); // no encoding (1 would be zip-compressed)
-        // TODO: compress if large?
+            // TODO: compress if large?
-        s.PutU4(uint32_t(data.size())); // data size
+            s.PutU4(uint32_t(data.size())); // data size
-        for (size_t i = 0; i < N; ++i) {
+            for (size_t i = 0; i < N; ++i) {
-            s.PutF8((reinterpret_cast<double*>(d))[i]);
+                s.PutF8((reinterpret_cast<double*>(d))[i]);
-        }
+            }
-        return;
+            return;
-    default:
+        default:
-        std::ostringstream err;
+            std::ostringstream err;
-        err << "Tried to dump property with invalid type '";
+            err << "Tried to dump property with invalid type '";
-        err << type << "'!";
+            err << type << "'!";
-        throw DeadlyExportError(err.str());
+            throw DeadlyExportError(err.str());
    }
 }
-void FBX::Property::DumpAscii(Assimp::StreamWriterLE &outstream, int indent)
+void FBXExportProperty::DumpAscii(Assimp::StreamWriterLE& outstream, int indent) {
 {
    std::ostringstream ss;
    ss.imbue(std::locale::classic());
    ss.precision(15); // this seems to match official FBX SDK exports
@ -240,8 +263,7 @@ void FBX::Property::DumpAscii(Assimp::StreamWriterLE &outstream, int indent)
    outstream.PutString(ss.str());
 }
-void FBX::Property::DumpAscii(std::ostream& s, int indent)
+void FBXExportProperty::DumpAscii(std::ostream& s, int indent) {
 {
    // no writing type... or anything. just shove it into the stream.
    uint8_t* d = data.data();
    size_t N;
@ -360,5 +382,8 @@ void FBX::Property::DumpAscii(std::ostream& s, int indent)
    }
 }
 } // Namespace FBX
 } // Namespace Assimp
 #endif // ASSIMP_BUILD_NO_FBX_EXPORTER
 #endif // ASSIMP_BUILD_NO_EXPORT
--- a/code/FBXExportProperty.h
+++ b/code/FBXExportProperty.h
@ -47,7 +47,6 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #ifndef ASSIMP_BUILD_NO_FBX_EXPORTER
 #include <assimp/types.h> // aiMatrix4x4
 #include <assimp/StreamWriter.h> // StreamWriterLE
@ -56,11 +55,10 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include <ostream>
 #include <type_traits> // is_void
 namespace Assimp {
 namespace FBX {
    class Property;
 }
-/** FBX::Property
+/** @brief FBX::Property
 *
 *  Holds a value of any of FBX's recognized types,
 *  each represented by a particular one-character code.
@ -78,35 +76,34 @@ namespace FBX {
 *  S : string (array of 1-byte char)
 *  R : raw data (array of bytes)
 */
-class FBX::Property
+class FBXExportProperty {
 {
 public:
    // constructors for basic types.
    // all explicit to avoid accidental typecasting
-    explicit Property(bool v);
+    explicit FBXExportProperty(bool v);
    // TODO: determine if there is actually a byte type,
    // or if this always means <bool>. 'C' seems to imply <char>,
    // so possibly the above was intended to represent both.
-    explicit Property(int16_t v);
+    explicit FBXExportProperty(int16_t v);
-    explicit Property(int32_t v);
+    explicit FBXExportProperty(int32_t v);
-    explicit Property(float v);
+    explicit FBXExportProperty(float v);
-    explicit Property(double v);
+    explicit FBXExportProperty(double v);
-    explicit Property(int64_t v);
+    explicit FBXExportProperty(int64_t v);
    // strings can either be stored as 'R' (raw) or 'S' (string) type
-    explicit Property(const char* c, bool raw=false);
+    explicit FBXExportProperty(const char* c, bool raw = false);
-    explicit Property(const std::string& s, bool raw=false);
+    explicit FBXExportProperty(const std::string& s, bool raw = false);
-    explicit Property(const std::vector<uint8_t>& r);
+    explicit FBXExportProperty(const std::vector<uint8_t>& r);
-    explicit Property(const std::vector<int32_t>& va);
+    explicit FBXExportProperty(const std::vector<int32_t>& va);
-    explicit Property(const std::vector<int64_t>& va);
+    explicit FBXExportProperty(const std::vector<int64_t>& va);
-    explicit Property(const std::vector<double>& va);
+    explicit FBXExportProperty(const std::vector<double>& va);
-    explicit Property(const std::vector<float>& va);
+    explicit FBXExportProperty(const std::vector<float>& va);
-    explicit Property(const aiMatrix4x4& vm);
+    explicit FBXExportProperty(const aiMatrix4x4& vm);
    // this will catch any type not defined above,
    // so that we don't accidentally convert something we don't want.
    // for example (const char*) --> (bool)... seriously wtf C++
    template <class T>
-    explicit Property(T v) : type('X') {
+    explicit FBXExportProperty(T v) : type('X') {
        static_assert(std::is_void<T>::value, "TRIED TO CREATE FBX PROPERTY WITH UNSUPPORTED TYPE, CHECK YOUR PROPERTY INSTANTIATION");
    } // note: no line wrap so it appears verbatim on the compiler error
@ -114,9 +111,9 @@ public:
    size_t size();
    // write this property node as binary data to the given stream
-    void DumpBinary(Assimp::StreamWriterLE &s);
+    void DumpBinary(Assimp::StreamWriterLE& s);
-    void DumpAscii(Assimp::StreamWriterLE &s, int indent=0);
+    void DumpAscii(Assimp::StreamWriterLE& s, int indent = 0);
-    void DumpAscii(std::ostream &s, int indent=0);
+    void DumpAscii(std::ostream& s, int indent = 0);
    // note: make sure the ostream is in classic "C" locale
 private:
@ -124,6 +121,9 @@ private:
    std::vector<uint8_t> data;
 };
 } // Namespace FBX
 } // Namespace Assimp
 #endif // ASSIMP_BUILD_NO_FBX_EXPORTER
 #endif // AI_FBXEXPORTPROPERTY_H_INC
--- a/code/FBXExporter.cpp
+++ b/code/FBXExporter.cpp
@ -45,6 +45,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "FBXExportNode.h"
 #include "FBXExportProperty.h"
 #include "FBXCommon.h"
 #include "FBXUtil.h"
 #include <assimp/version.h> // aiGetVersion
 #include <assimp/IOSystem.hpp>
@ -73,7 +74,11 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 const ai_real DEG = ai_real( 57.29577951308232087679815481 ); // degrees per radian
 using namespace Assimp;
 using namespace Assimp::FBX;
 // some constants that we'll use for writing metadata
 namespace Assimp {
 namespace FBX {
    const std::string EXPORT_VERSION_STR = "7.4.0";
    const uint32_t EXPORT_VERSION_INT = 7400; // 7.4 == 2014/2015
@ -92,11 +97,6 @@ namespace FBX {
        ";------------------------------------------------------------------";
 }
 using namespace Assimp;
 using namespace FBX;
 namespace Assimp {
    // ---------------------------------------------------------------------
    // Worker function for exporting a scene to binary FBX.
    // Prototyped and registered in Exporter.cpp
@ -121,6 +121,7 @@ namespace Assimp {
        IOSystem* pIOSystem,
        const aiScene* pScene,
        const ExportProperties* pProperties
    ){
        // initialize the exporter
        FBXExporter exporter(pScene, pProperties);
@ -1393,10 +1394,6 @@ void FBXExporter::WriteObjects ()
    // FbxVideo - stores images used by textures.
    for (const auto &it : uid_by_image) {
        if (it.first.compare(0, 1, "*") == 0) {
            // TODO: embedded textures
            continue;
        }
        FBX::Node n("Video");
        const int64_t& uid = it.second;
        const std::string name = ""; // TODO: ... name???
@ -1406,7 +1403,33 @@ void FBXExporter::WriteObjects ()
        // TODO: get full path... relative path... etc... ugh...
        // for now just use the same path for everything,
        // and hopefully one of them will work out.
-        const std::string& path = it.first;
+        std::string path = it.first;
        // try get embedded texture
        const aiTexture* embedded_texture = mScene->GetEmbeddedTexture(it.first.c_str());
        if (embedded_texture != nullptr) {
            // change the path (use original filename, if available. If name is empty, concatenate texture index with file extension)
            std::stringstream newPath;
            if (embedded_texture->mFilename.length > 0) {
                newPath << embedded_texture->mFilename.C_Str();
            } else if (embedded_texture->achFormatHint[0]) {
                int texture_index = std::stoi(path.substr(1, path.size() - 1));
                newPath << texture_index << "." << embedded_texture->achFormatHint;
            }
            path = newPath.str();
            // embed the texture
            size_t texture_size = static_cast<size_t>(embedded_texture->mWidth * std::max(embedded_texture->mHeight, 1u));
            if (binary) {
                // embed texture as binary data
                std::vector<uint8_t> tex_data;
                tex_data.resize(texture_size);
                memcpy(&tex_data[0], (char*)embedded_texture->pcData, texture_size);
                n.AddChild("Content", tex_data);
            } else {
                // embed texture in base64 encoding
                std::string encoded_texture = FBX::Util::EncodeBase64((char*)embedded_texture->pcData, texture_size);
                n.AddChild("Content", encoded_texture);
            }
        }
        p.AddP70("Path", "KString", "XRefUrl", "", path);
        n.AddChild(p);
        n.AddChild("UseMipMap", int32_t(0));
@ -1419,17 +1442,17 @@ void FBXExporter::WriteObjects ()
    // referenced by material_index/texture_type pairs.
    std::map<std::pair<size_t,size_t>,int64_t> texture_uids;
    const std::map<aiTextureType,std::string> prop_name_by_tt = {
-        {aiTextureType_DIFFUSE, "DiffuseColor"},
+        {aiTextureType_DIFFUSE,      "DiffuseColor"},
-        {aiTextureType_SPECULAR, "SpecularColor"},
+        {aiTextureType_SPECULAR,     "SpecularColor"},
-        {aiTextureType_AMBIENT, "AmbientColor"},
+        {aiTextureType_AMBIENT,      "AmbientColor"},
-        {aiTextureType_EMISSIVE, "EmissiveColor"},
+        {aiTextureType_EMISSIVE,     "EmissiveColor"},
-        {aiTextureType_HEIGHT, "Bump"},
+        {aiTextureType_HEIGHT,       "Bump"},
-        {aiTextureType_NORMALS, "NormalMap"},
+        {aiTextureType_NORMALS,      "NormalMap"},
-        {aiTextureType_SHININESS, "ShininessExponent"},
+        {aiTextureType_SHININESS,    "ShininessExponent"},
-        {aiTextureType_OPACITY, "TransparentColor"},
+        {aiTextureType_OPACITY,      "TransparentColor"},
        {aiTextureType_DISPLACEMENT, "DisplacementColor"},
        //{aiTextureType_LIGHTMAP, "???"},
-        {aiTextureType_REFLECTION, "ReflectionColor"}
+        {aiTextureType_REFLECTION,   "ReflectionColor"}
        //{aiTextureType_UNKNOWN, ""}
    };
    for (size_t i = 0; i < mScene->mNumMaterials; ++i) {
@ -1575,11 +1598,22 @@ void FBXExporter::WriteObjects ()
    // one sticky point is that the number of vertices may not match,
    // because assimp splits vertices by normal, uv, etc.
    // functor for aiNode sorting
    struct SortNodeByName
    {
        bool operator()(const aiNode *lhs, const aiNode *rhs) const
        {
            return strcmp(lhs->mName.C_Str(), rhs->mName.C_Str()) < 0;
        }
    };
    // first we should mark the skeleton for each mesh.
    // the skeleton must include not only the aiBones,
    // but also all their parent nodes.
    // anything that affects the position of any bone node must be included.
-    std::vector<std::set<const aiNode*>> skeleton_by_mesh(mScene->mNumMeshes);
+    // Use SorNodeByName to make sure the exported result will be the same across all systems
    // Otherwise the aiNodes of the skeleton would be sorted based on the pointer address, which isn't consistent
    std::vector<std::set<const aiNode*, SortNodeByName>> skeleton_by_mesh(mScene->mNumMeshes);
    // at the same time we can build a list of all the skeleton nodes,
    // which will be used later to mark them as type "limbNode".
    std::unordered_set<const aiNode*> limbnodes;
@ -1587,7 +1621,7 @@ void FBXExporter::WriteObjects ()
    std::map<std::string,aiNode*> node_by_bone;
    for (size_t mi = 0; mi < mScene->mNumMeshes; ++mi) {
        const aiMesh* m = mScene->mMeshes[mi];
-        std::set<const aiNode*> skeleton;
+        std::set<const aiNode*, SortNodeByName> skeleton;
        for (size_t bi =0; bi < m->mNumBones; ++bi) {
            const aiBone* b = m->mBones[bi];
            const std::string name(b->mName.C_Str());
@ -1728,7 +1762,7 @@ void FBXExporter::WriteObjects ()
        aiMatrix4x4 mesh_xform = get_world_transform(mesh_node, mScene);
        // now make a subdeformer for each bone in the skeleton
-        const std::set<const aiNode*> &skeleton = skeleton_by_mesh[mi];
+        const std::set<const aiNode*, SortNodeByName> skeleton= skeleton_by_mesh[mi];
        for (const aiNode* bone_node : skeleton) {
            // if there's a bone for this node, find it
            const aiBone* b = nullptr;
@ -2237,8 +2271,8 @@ void FBXExporter::WriteModelNode(
    // not sure what these are for,
    // but they seem to be omnipresent
-    m.AddChild("Shading", Property(true));
+    m.AddChild("Shading", FBXExportProperty(true));
-    m.AddChild("Culling", Property("CullingOff"));
+    m.AddChild("Culling", FBXExportProperty("CullingOff"));
    m.Dump(outstream, binary, 1);
 }
@ -2351,7 +2385,7 @@ void FBXExporter::WriteModelNodes(
        na.AddProperties(
            node_attribute_uid, FBX::SEPARATOR + "NodeAttribute", "LimbNode"
        );
-        na.AddChild("TypeFlags", Property("Skeleton"));
+        na.AddChild("TypeFlags", FBXExportProperty("Skeleton"));
        na.Dump(outstream, binary, 1);
        // and connect them
        connections.emplace_back("C", "OO", node_attribute_uid, node_uid);
--- a/code/FBXImportSettings.h
+++ b/code/FBXImportSettings.h
@ -53,19 +53,22 @@ namespace FBX {
 struct ImportSettings
 {
    ImportSettings()
-        : strictMode(true)
+    : strictMode(true)
-        , readAllLayers(true)
+    , readAllLayers(true)
-        , readAllMaterials(false)
+    , readAllMaterials(false)
-        , readMaterials(true)
+    , readMaterials(true)
-        , readTextures(true)
+    , readTextures(true)
-        , readCameras(true)
+    , readCameras(true)
-        , readLights(true)
+    , readLights(true)
-        , readAnimations(true)
+    , readAnimations(true)
-        , readWeights(true)
+    , readWeights(true)
-        , preservePivots(true)
+    , preservePivots(true)
-        , optimizeEmptyAnimationCurves(true)
+    , optimizeEmptyAnimationCurves(true)
-        , useLegacyEmbeddedTextureNaming(false)
+    , useLegacyEmbeddedTextureNaming(false)
-    {}
+    , removeEmptyBones( true )
    , convertToMeters( false ) {
        // empty
    }
    /** enable strict mode:
@ -141,8 +144,16 @@ struct ImportSettings
    bool optimizeEmptyAnimationCurves;
    /** use legacy naming for embedded textures eg: (*0, *1, *2)
-    **/
+    */
    bool useLegacyEmbeddedTextureNaming;
    /** Empty bones shall be removed
    */
    bool removeEmptyBones;
    /** Set to true to perform a conversion from cm to meter after the import
    */
    bool convertToMeters;
 };
--- a/code/FBXImporter.cpp
+++ b/code/FBXImporter.cpp
@ -140,6 +140,8 @@ void FBXImporter::SetupProperties(const Importer* pImp)
    settings.preservePivots = pImp->GetPropertyBool(AI_CONFIG_IMPORT_FBX_PRESERVE_PIVOTS, true);
    settings.optimizeEmptyAnimationCurves = pImp->GetPropertyBool(AI_CONFIG_IMPORT_FBX_OPTIMIZE_EMPTY_ANIMATION_CURVES, true);
    settings.useLegacyEmbeddedTextureNaming = pImp->GetPropertyBool(AI_CONFIG_IMPORT_FBX_EMBEDDED_TEXTURES_LEGACY_NAMING, false);
    settings.removeEmptyBones = pImp->GetPropertyBool(AI_CONFIG_IMPORT_REMOVE_EMPTY_BONES, true);
    settings.convertToMeters = pImp->GetPropertyBool(AI_CONFIG_FBX_CONVERT_TO_M, false);
 }
 // ------------------------------------------------------------------------------------------------
@ -183,8 +185,12 @@ void FBXImporter::InternReadFile( const std::string& pFile, aiScene* pScene, IOS
        // take the raw parse-tree and convert it to a FBX DOM
        Document doc(parser,settings);
        FbxUnit unit(FbxUnit::cm);
        if (settings.convertToMeters) {
            unit = FbxUnit::m;
        }
        // convert the FBX DOM to aiScene
-        ConvertToAssimpScene(pScene,doc);
+        ConvertToAssimpScene(pScene,doc, settings.removeEmptyBones, unit);
        std::for_each(tokens.begin(),tokens.end(),Util::delete_fun<Token>());
    }
--- a/code/FBXMeshGeometry.cpp
+++ b/code/FBXMeshGeometry.cpp
@ -568,15 +568,15 @@ void MeshGeometry::ReadVertexDataColors(std::vector<aiColor4D>& colors_out, cons
 }
 // ------------------------------------------------------------------------------------------------
-static const std::string TangentIndexToken = "TangentIndex";
+static const char *TangentIndexToken = "TangentIndex";
-static const std::string TangentsIndexToken = "TangentsIndex";
+static const char *TangentsIndexToken = "TangentsIndex";
 void MeshGeometry::ReadVertexDataTangents(std::vector<aiVector3D>& tangents_out, const Scope& source,
    const std::string& MappingInformationType,
    const std::string& ReferenceInformationType)
 {
    const char * str = source.Elements().count( "Tangents" ) > 0 ? "Tangents" : "Tangent";
-    const char * strIdx = source.Elements().count( "Tangents" ) > 0 ? TangentsIndexToken.c_str() : TangentIndexToken.c_str();
+    const char * strIdx = source.Elements().count( "Tangents" ) > 0 ? TangentsIndexToken : TangentIndexToken;
    ResolveVertexDataArray(tangents_out,source,MappingInformationType,ReferenceInformationType,
        str,
        strIdx,
--- a/code/FBXParser.cpp
+++ b/code/FBXParser.cpp
@ -117,7 +117,7 @@ namespace FBX {
 Element::Element(const Token& key_token, Parser& parser)
 : key_token(key_token)
 {
-    TokenPtr n = NULL;
+    TokenPtr n = nullptr;
    do {
        n = parser.AdvanceToNextToken();
        if(!n) {
--- a/code/FBXUtil.cpp
+++ b/code/FBXUtil.cpp
@ -157,6 +157,66 @@ size_t DecodeBase64(const char* in, size_t inLength, uint8_t*& out)
    return outLength;
 }
 static const char to_base64_string[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
 char EncodeBase64(char byte)
 {
    return to_base64_string[(size_t)byte];
 }
 /** Encodes a block of 4 bytes to base64 encoding
 *
 *  @param bytes Bytes to encode.
 *  @param out_string String to write encoded values to.
 *  @param string_pos Position in out_string.*/
 void EncodeByteBlock(const char* bytes, std::string& out_string, size_t string_pos)
 {
    char b0 = (bytes[0] & 0xFC) >> 2;
    char b1 = (bytes[0] & 0x03) << 4 | ((bytes[1] & 0xF0) >> 4);
    char b2 = (bytes[1] & 0x0F) << 2 | ((bytes[2] & 0xC0) >> 6);
    char b3 = (bytes[2] & 0x3F);
    out_string[string_pos + 0] = EncodeBase64(b0);
    out_string[string_pos + 1] = EncodeBase64(b1);
    out_string[string_pos + 2] = EncodeBase64(b2);
    out_string[string_pos + 3] = EncodeBase64(b3);
 }
 std::string EncodeBase64(const char* data, size_t length)
 {
    // calculate extra bytes needed to get a multiple of 3
    size_t extraBytes = 3 - length % 3;
    // number of base64 bytes
    size_t encodedBytes = 4 * (length + extraBytes) / 3;
    std::string encoded_string(encodedBytes, '=');
    // read blocks of 3 bytes
    for (size_t ib3 = 0; ib3 < length / 3; ib3++)
    {
        const size_t iByte = ib3 * 3;
        const size_t iEncodedByte = ib3 * 4;
        const char* currData = &data[iByte];
        EncodeByteBlock(currData, encoded_string, iEncodedByte);
    }
    // if size of data is not a multiple of 3, also encode the final bytes (and add zeros where needed)
    if (extraBytes > 0)
    {
        char finalBytes[4] = { 0,0,0,0 };
        memcpy(&finalBytes[0], &data[length - length % 3], length % 3);
        const size_t iEncodedByte = encodedBytes - 4;
        EncodeByteBlock(&finalBytes[0], encoded_string, iEncodedByte);
        // add '=' at the end
        for (size_t i = 0; i < 4 * extraBytes / 3; i++)
            encoded_string[encodedBytes - i - 1] = '=';
    }
    return encoded_string;
 }
 } // !Util
 } // !FBX
 } // !Assimp
--- a/code/FBXUtil.h
+++ b/code/FBXUtil.h
@ -113,6 +113,15 @@ uint8_t DecodeBase64(char ch);
 *  @return size of the decoded data (number of bytes)*/
 size_t DecodeBase64(const char* in, size_t inLength, uint8_t*& out);
 char EncodeBase64(char byte);
 /** Encode bytes in base64-encoding
 *
 *  @param data Binary data to encode.
 *  @param inLength Number of bytes to encode.
 *  @return base64-encoded string*/
 std::string EncodeBase64(const char* data, size_t length);
 }
 }
 }
--- a/code/ObjFileParser.cpp
+++ b/code/ObjFileParser.cpp
@ -151,7 +151,7 @@ void ObjFileParser::parseFile( IOStreamBuffer<char> &streamBuffer ) {
                } else if (*m_DataIt == 't') {
                    // read in texture coordinate ( 2D or 3D )
                    ++m_DataIt;
-                    size_t dim = getVector(m_pModel->m_TextureCoord);
+                    size_t dim = getTexCoordVector(m_pModel->m_TextureCoord);
                    m_pModel->m_TextureCoordDim = std::max(m_pModel->m_TextureCoordDim, (unsigned int)dim);
                } else if (*m_DataIt == 'n') {
                    // Read in normal vector definition
@ -272,6 +272,17 @@ static bool isDataDefinitionEnd( const char *tmp ) {
    return false;
 }
 static bool isNanOrInf(const char * in) {
    // Look for "nan" or "inf", case insensitive
    if ((in[0] == 'N' || in[0] == 'n') && ASSIMP_strincmp(in, "nan", 3) == 0) {
        return true;
    }
    else if ((in[0] == 'I' || in[0] == 'i') && ASSIMP_strincmp(in, "inf", 3) == 0) {
        return true;
    }
    return false;
 }
 size_t ObjFileParser::getNumComponentsInDataDefinition() {
    size_t numComponents( 0 );
    const char* tmp( &m_DataIt[0] );
@ -285,7 +296,7 @@ size_t ObjFileParser::getNumComponentsInDataDefinition() {
        if ( !SkipSpaces( &tmp ) ) {
            break;
        }
-        const bool isNum( IsNumeric( *tmp ) );
+        const bool isNum( IsNumeric( *tmp ) || isNanOrInf(tmp));
        SkipToken( tmp );
        if ( isNum ) {
            ++numComponents;
@ -297,7 +308,7 @@ size_t ObjFileParser::getNumComponentsInDataDefinition() {
    return numComponents;
 }
-size_t ObjFileParser::getVector( std::vector<aiVector3D> &point3d_array ) {
+size_t ObjFileParser::getTexCoordVector( std::vector<aiVector3D> &point3d_array ) {
    size_t numComponents = getNumComponentsInDataDefinition();
    ai_real x, y, z;
    if( 2 == numComponents ) {
@ -319,6 +330,17 @@ size_t ObjFileParser::getVector( std::vector<aiVector3D> &point3d_array ) {
    } else {
        throw DeadlyImportError( "OBJ: Invalid number of components" );
    }
    // Coerce nan and inf to 0 as is the OBJ default value
    if (!std::isfinite(x))
        x = 0;
    if (!std::isfinite(y))
        y = 0;
    if (!std::isfinite(z))
        z = 0;
    point3d_array.push_back( aiVector3D( x, y, z ) );
    m_DataIt = skipLine<DataArrayIt>( m_DataIt, m_DataItEnd, m_uiLine );
    return numComponents;
@ -429,13 +451,6 @@ void ObjFileParser::getFace( aiPrimitiveType type ) {
            if (type == aiPrimitiveType_POINT) {
                ASSIMP_LOG_ERROR("Obj: Separator unexpected in point statement");
            }
            if (iPos == 0) {
                //if there are no texture coordinates in the file, but normals
                if (!vt && vn) {
                    iPos = 1;
                    iStep++;
                }
            }
            iPos++;
        } else if( IsSpaceOrNewLine( *m_DataIt ) ) {
            iPos = 0;
@ -452,6 +467,9 @@ void ObjFileParser::getFace( aiPrimitiveType type ) {
                ++iStep;
            }
            if (iPos == 1 && !vt && vn)
                iPos = 2; // skip texture coords for normals if there are no tex coords
            if ( iVal > 0 ) {
                // Store parsed index
                if ( 0 == iPos ) {
--- a/code/ObjFileParser.h
+++ b/code/ObjFileParser.h
@ -96,7 +96,7 @@ protected:
    /// Get the number of components in a line.
    size_t getNumComponentsInDataDefinition();
    /// Stores the vector
-    size_t getVector( std::vector<aiVector3D> &point3d_array );
+    size_t getTexCoordVector( std::vector<aiVector3D> &point3d_array );
    /// Stores the following 3d vector.
    void getVector3( std::vector<aiVector3D> &point3d_array );
    /// Stores the following homogeneous vector as a 3D vector
--- a/code/ValidateDataStructure.cpp
+++ b/code/ValidateDataStructure.cpp
@ -46,8 +46,6 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *    the data structure returned by Assimp.
 */
 // internal headers
 #include "ValidateDataStructure.h"
 #include <assimp/BaseImporter.h>
@ -110,8 +108,8 @@ void ValidateDSProcess::ReportWarning(const char* msg,...)
 }
 // ------------------------------------------------------------------------------------------------
-inline int HasNameMatch(const aiString& in, aiNode* node)
+inline
-{
+int HasNameMatch(const aiString& in, aiNode* node) {
    int result = (node->mName == in ? 1 : 0 );
    for (unsigned int i = 0; i < node->mNumChildren;++i)    {
        result += HasNameMatch(in,node->mChildren[i]);
@ -121,9 +119,8 @@ inline int HasNameMatch(const aiString& in, aiNode* node)
 // ------------------------------------------------------------------------------------------------
 template <typename T>
-inline void ValidateDSProcess::DoValidation(T** parray, unsigned int size,
+inline
-    const char* firstName, const char* secondName)
+void ValidateDSProcess::DoValidation(T** parray, unsigned int size, const char* firstName, const char* secondName) {
 {
    // validate all entries
    if (size)
    {
@ -181,7 +178,8 @@ inline void ValidateDSProcess::DoValidationEx(T** parray, unsigned int size,
 // ------------------------------------------------------------------------------------------------
 template <typename T>
 inline
-void ValidateDSProcess::DoValidationWithNameCheck(T** array, unsigned int size, const char* firstName, const char* secondName) {
+void ValidateDSProcess::DoValidationWithNameCheck(T** array, unsigned int size, const char* firstName,
        const char* secondName) {
    // validate all entries
    DoValidationEx(array,size,firstName,secondName);
@ -201,9 +199,8 @@ void ValidateDSProcess::DoValidationWithNameCheck(T** array, unsigned int size,
 // ------------------------------------------------------------------------------------------------
 // Executes the post processing step on the given imported data.
-void ValidateDSProcess::Execute( aiScene* pScene)
+void ValidateDSProcess::Execute( aiScene* pScene) {
-{
+    mScene = pScene;
    this->mScene = pScene;
    ASSIMP_LOG_DEBUG("ValidateDataStructureProcess begin");
    // validate the node graph of the scene
@ -516,13 +513,11 @@ void ValidateDSProcess::Validate( const aiMesh* pMesh)
 }
 // ------------------------------------------------------------------------------------------------
-void ValidateDSProcess::Validate( const aiMesh* pMesh,
+void ValidateDSProcess::Validate( const aiMesh* pMesh, const aiBone* pBone,float* afSum) {
    const aiBone* pBone,float* afSum)
 {
    this->Validate(&pBone->mName);
    if (!pBone->mNumWeights)    {
-        ReportError("aiBone::mNumWeights is zero");
+        //ReportError("aiBone::mNumWeights is zero");
    }
    // check whether all vertices affected by this bone are valid
@ -563,9 +558,6 @@ void ValidateDSProcess::Validate( const aiAnimation* pAnimation)
    else {
    	ReportError("aiAnimation::mNumChannels is 0. At least one node animation channel must be there.");
    }
    // Animation duration is allowed to be zero in cases where the anim contains only a single key frame.
    // if (!pAnimation->mDuration)this->ReportError("aiAnimation::mDuration is zero");
 }
 // ------------------------------------------------------------------------------------------------
@ -746,8 +738,9 @@ void ValidateDSProcess::Validate( const aiMaterial* pMaterial)
                    "AI_MATKEY_SHININESS_STRENGTH key is 0.0");
            }
            break;
-        default: ;
+        default:
-        };
+            break;
        }
    }
    if (AI_SUCCESS == aiGetMaterialFloat( pMaterial,AI_MATKEY_OPACITY,&fTemp) && (!fTemp || fTemp > 1.01)) {
--- a/code/glTF2Importer.cpp
+++ b/code/glTF2Importer.cpp
@ -789,13 +789,16 @@ static void BuildVertexWeightMapping(Mesh::Primitive& primitive, std::vector<std
    delete[] indices16;
 }
 static std::string GetNodeName(const Node& node)
 {
    return node.name.empty() ? node.id : node.name;
 }
 aiNode* ImportNode(aiScene* pScene, glTF2::Asset& r, std::vector<unsigned int>& meshOffsets, glTF2::Ref<glTF2::Node>& ptr)
 {
    Node& node = *ptr;
-    std::string nameOrId = node.name.empty() ? node.id : node.name;
+    aiNode* ainode = new aiNode(GetNodeName(node));
    aiNode* ainode = new aiNode(nameOrId);
    if (!node.children.empty()) {
        ainode->mNumChildren = unsigned(node.children.size());
@ -921,7 +924,7 @@ struct AnimationSamplers {
 aiNodeAnim* CreateNodeAnim(glTF2::Asset& r, Node& node, AnimationSamplers& samplers)
 {
    aiNodeAnim* anim = new aiNodeAnim();
-    anim->mNodeName = node.name;
+    anim->mNodeName = GetNodeName(node);
    static const float kMillisecondsFromSeconds = 1000.f;
--- a/code/makefile.mingw
+++ b/code/makefile.mingw
@ -1,105 +0,0 @@
 ### USE OF THIS MAKEFILE IS NOT RECOMMENDED.
 ### It is no longer maintained. Use CMAKE instead.
 # ---------------------------------------------------------------------------
 # Makefile for Open Asset Import Library (MinGW32-make)
 # aramis_acg@users.sourceforge.net
 #   - just a quick'n'dirty one, could be buggy ...
 #
 # Usage: mingw32-make -f makefile.mingw <target> <macros>
 # TARGETS:
 #   all                  Build a shared so from the whole library
 #   clean                Cleanup object files, prepare for rebuild
 #   static               Build a static library (*.a)
 # MACROS: (make clean before you change one)
 #   NOBOOST=1            Build against boost workaround
 #   SINGLETHREADED=1     Build single-threaded library
 #   DEBUG=1              Build debug build of library
 # 
 # ---------------------------------------------------------------------------
 # C++ object files
 OBJECTS   := $(patsubst %.cpp,%.o,  $(wildcard *.cpp)) 
 OBJECTS   += $(patsubst %.cpp,%.o,  $(wildcard extra/*.cpp)) 
 OBJECTS   += $(patsubst %.cpp,%.o,  $(wildcard ./../contrib/irrXML/*.cpp)) 
 # C object files 
 OBJECTSC  := $(patsubst %.c,%.oc,   $(wildcard ./../contrib/zlib/*.c))
 OBJECTSC  += $(patsubst %.c,%.oc,   $(wildcard ./../contrib/ConvertUTF/*.c))
 OBJECTSC  += $(patsubst %.c,%.oc,   $(wildcard ./../contrib/unzip/*.c))
 # Include flags for gcc
 INCLUDEFLAGS =
 # Preprocessor defines for gcc
 DEFINEFLAGS = 
 # Suffix for the output binary, represents build type
 NAMESUFFIX = 
 # Output path for binaries
 BINPATH = ../bin/mingw/
 # GCC compiler flags 
 CPPFLAGS=-Wall 
 # Setup environment for noboost build
 ifeq ($(NOBOOST),1)
 	SINGLETHREADED = 1
 	INCLUDEFLAGS  += -I./BoostWorkaround/
 	DEFINEFLAGS   += -DASSIMP_BUILD_BOOST_WORKAROUND 
 #	NAMESUFFIX    += -noboost
 else
 	# adjust this manually if your boost is stored elsewhere
 	INCLUDEFLAGS  += -I"C:/Program Files/boost/boost_1_38"
 	#INCLUDEFLAGS  += -I"$(BOOST_DIR)"
 endif
 # Setup environment for st build
 ifeq ($(SINGLETHREADED),1)
 	DEFINEFLAGS   += -DASSIMP_BUILD_SINGLETHREADED
 #	NAMESUFFIX    += -st
 endif
 # Setup environment for debug build
 ifeq ($(DEBUG),1)
 	DEFINEFLAGS   += -D_DEBUG -DDEBUG
 	CPPFLAGS      += -g
 #	NAMESUFFIX    += -debug
 else
 	CPPFLAGS      += -O2 -s
 	DEFINEFLAGS   += -DNDEBUG -D_NDEBUG
 endif
 # Output name of shared library
 SHARED_TARGET = $(BINPATH)/libassimp$(NAMESUFFIX).so
 # Output name of static library
 STATIC = $(BINPATH)/libassimp$(NAMESUFFIX).a
 # target: all
 # usage : build a shared library (*.so)
 all:	$(SHARED_TARGET)
 $(SHARED_TARGET):  $(OBJECTS)  $(OBJECTSC)
 	gcc -o $@ $(OBJECTS) $(OBJECTSC) -shared -lstdc++ 
 %.o:%.cpp
 	$(CXX) -c  $(CPPFLAGS) $? -o $@ $(INCLUDEFLAGS) $(DEFINEFLAGS)
 %.oc:%.c
 	$(CXX) -x c -c -ansi $(CPPFLAGS) $? -o $@ 
 # target: clean
 # usage : cleanup all object files, prepare for a rebuild
 .PHONY: clean
 clean:
 	-del *.o .\..\contrib\irrXML\*.o .\..\contrib\zlib\*.oc .\..\contrib\unzip\*.oc .\..\contrib\ConvertUTF\*.oc
 # target: static
 # usage : build a static library (*.a)
 static:    $(STATIC) 
 $(STATIC):    $(OBJECTS) $(OBJECTSC)
 	ar rcs $@ $(OBJECTS) $(OBJECTSC)
--- a/code/res/assimp.rc
+++ b/code/res/assimp.rc
@ -1,7 +1,7 @@
 // Microsoft Visual C++ generated resource script.
 //
 #include "resource.h"
-#include "..\..\revision.h"
+#include "revision.h"
 #define APSTUDIO_READONLY_SYMBOLS
 /////////////////////////////////////////////////////////////////////////////
@ -31,8 +31,8 @@ LANGUAGE LANG_GERMAN, SUBLANG_GERMAN
 //
 VS_VERSION_INFO VERSIONINFO
- FILEVERSION 1,1,SVNRevision, 0
+ FILEVERSION VER_FILEVERSION
- PRODUCTVERSION 1,1,SVNRevision,0
+ PRODUCTVERSION VER_FILEVERSION
 FILEFLAGSMASK 0x17L
 #ifdef _DEBUG
 FILEFLAGS 0x1L
@ -50,12 +50,12 @@ BEGIN
            VALUE "Comments", "Licensed under a 3-clause BSD license"
            VALUE "CompanyName", "assimp team"
            VALUE "FileDescription", "Open Asset Import Library"
-            VALUE "FileVersion", 1,1,SVNRevision,0
+            VALUE "FileVersion", VER_FILEVERSION
            VALUE "InternalName", "assimp "
            VALUE "LegalCopyright", "Copyright (C) 2006-2010"
            VALUE "OriginalFilename", "assimpNN.dll"
            VALUE "ProductName", "Open Asset Import Library"
-            VALUE "ProductVersion", 1,1,SVNRevision,0
+            VALUE "ProductVersion", VER_FILEVERSION_STR
 		,0
        END
    END
--- a/include/assimp/Exporter.hpp
+++ b/include/assimp/Exporter.hpp
@ -190,7 +190,7 @@ public:
    * @note Use aiCopyScene() to get a modifiable copy of a previously
    *   imported scene. */
    const aiExportDataBlob* ExportToBlob(const aiScene* pScene, const char* pFormatId,
-        unsigned int pPreprocessing = 0u, const ExportProperties* = nullptr);
+        unsigned int pPreprocessing = 0u, const ExportProperties* pProperties = nullptr);
    const aiExportDataBlob* ExportToBlob(  const aiScene* pScene, const std::string& pFormatId,
        unsigned int pPreprocessing = 0u, const ExportProperties* pProperties = nullptr);
--- a/include/assimp/color4.inl
+++ b/include/assimp/color4.inl
@ -85,6 +85,8 @@ AI_FORCE_INLINE TReal aiColor4t<TReal>::operator[](unsigned int i) const {
            return g;
        case 2:
            return b;
        case 3:
            return a;
        default:
            break;
    }
@ -100,6 +102,8 @@ AI_FORCE_INLINE TReal& aiColor4t<TReal>::operator[](unsigned int i) {
            return g;
        case 2:
            return b;
        case 3:
            return a;
        default:
            break;
    }
--- a/include/assimp/config.h.in
+++ b/include/assimp/config.h.in
@ -651,13 +651,28 @@ enum aiComponent
 // ---------------------------------------------------------------------------
 /** @brief Set whether the fbx importer will use the legacy embedded texture naming.
-*
+ *
-* The default value is false (0)
+ * The default value is false (0)
-* Property type: bool
+ * Property type: bool
-*/
+ */
 #define AI_CONFIG_IMPORT_FBX_EMBEDDED_TEXTURES_LEGACY_NAMING \
 	"AI_CONFIG_IMPORT_FBX_EMBEDDED_TEXTURES_LEGACY_NAMING"
 // ---------------------------------------------------------------------------
 /** @brief  Set wether the importer shall not remove empty bones.
 *  
 *  Empty bone are often used to define connections for other models.
 */
 #define AI_CONFIG_IMPORT_REMOVE_EMPTY_BONES \
    "AI_CONFIG_IMPORT_REMOVE_EMPTY_BONES"
 // ---------------------------------------------------------------------------
 /** @brief  Set wether the FBX importer shall convert the unit from cm to m.
 */
 #define AI_CONFIG_FBX_CONVERT_TO_M \
    "AI_CONFIG_FBX_CONVERT_TO_M"
 // ---------------------------------------------------------------------------
 /** @brief  Set the vertex animation keyframe to be imported
 *
--- a/include/assimp/scene.h
+++ b/include/assimp/scene.h
@ -389,6 +389,14 @@ struct aiScene
    //! Returns an embedded texture
    const aiTexture* GetEmbeddedTexture(const char* filename) const {
        // lookup using texture ID (if referenced like: "*1", "*2", etc.)
        if ('*' == *filename) {
            int index = std::atoi(filename + 1);
            if (0 > index || mNumTextures <= static_cast<unsigned>(index))
                return nullptr;
            return mTextures[index];
        }
        // lookup using filename
        const char* shortFilename = GetShortFilename(filename);
        for (unsigned int i = 0; i < mNumTextures; i++) {
            const char* shortTextureFilename = GetShortFilename(mTextures[i]->mFilename.C_Str());
--- a/packaging/windows-innosetup/script.iss
+++ b/packaging/windows-innosetup/script.iss
@ -1,103 +0,0 @@
 ; Setup script for use with Inno Setup.
 [Setup]
 AppName=Open Asset Import Library - SDK
 AppVerName=Open Asset Import Library - SDK (v4.1.0)
 DefaultDirName={pf}\Assimp
 DefaultGroupName=Assimp
 UninstallDisplayIcon={app}\bin\x86\assimp.exe
 OutputDir=out
 AppCopyright=Assimp Development Team
 SetupIconFile=..\..\tools\shared\assimp_tools_icon.ico
 WizardImageFile=compiler:WizModernImage-IS.BMP
 WizardSmallImageFile=compiler:WizModernSmallImage-IS.BMP
 LicenseFile=License.rtf
 OutputBaseFileName=assimp-sdk-4.1.0-setup
 VersionInfoVersion=4.1.0.0
 VersionInfoTextVersion=4.1.0
 VersionInfoCompany=Assimp Development Team
 ArchitecturesInstallIn64BitMode=x64
 [Types]
 Name: "full";    Description: "Full installation"
 Name: "compact"; Description: "Compact installation, no test models or language bindings"
 Name: "custom";  Description: "Custom installation"; Flags: iscustom
 [Components]
 Name: "main";        Description: "Main Files (32 and 64 Bit)"; Types: full compact custom; Flags: fixed
 Name: "tools";       Description: "Asset Viewer & Command Line Tools (32 and 64 Bit)"; Types: full compact
 Name: "help";        Description: "Help Files"; Types: full compact
 Name: "samples";     Description: "Samples"; Types: full
 Name: "test";        Description: "Test Models (BSD-licensed)"; Types: full
 Name: "test_nonbsd"; Description: "Test Models (other (free) licenses)"; Types: full
 ;Name: "pyassimp";    Description: "Python Bindings"; Types: full
 ;Name: "dassimp";     Description: "D Bindings"; Types: full
 ;Name: "assimp_net";  Description: "C#/.NET Bindings"; Types: full
 [Run]
 ;Filename: "{app}\stub\vc_redist.x86.exe"; Parameters: "/qb"; StatusMsg: "Installing VS2017 redistributable package (32 Bit)"; Check: not IsWin64
 Filename: "{app}\stub\vc_redist.x64.exe"; Parameters: "/qb"; StatusMsg: "Installing VS2017 redistributable package (64 Bit)"; Check: IsWin64
 [Files]
 Source: "readme_installer.txt"; DestDir: "{app}"; Flags: isreadme
 ; Installer stub
 ;Source: "vc_redist.x86.exe"; DestDir: "{app}\stub\"; Check: not IsWin64
 Source: "vc_redist.x64.exe"; DestDir: "{app}\stub\"; Check: IsWin64
 ; Common stuff
 Source: "..\..\CREDITS"; DestDir: "{app}"
 Source: "..\..\LICENSE"; DestDir: "{app}"
 Source: "..\..\README"; DestDir: "{app}"
 Source: "WEB"; DestDir: "{app}"
 Source: "..\..\scripts\*"; DestDir: "{app}\scripts"; Flags: recursesubdirs
 ; x86 binaries
 ;Source: "..\..\bin\release\x86\assimp-vc140-mt.dll";  DestDir: "{app}\bin\x86"
 ;Source: "..\..\bin\release\x86\assimp_viewer.exe";    DestDir: "{app}\bin\x86"; Components: tools
 ;Source: "C:\Windows\SysWOW64\D3DCompiler_42.dll";     DestDir: "{app}\bin\x86"; Components: tools
 ;Source: "C:\Windows\SysWOW64\D3DX9_42.dll";           DestDir: "{app}\bin\x86"; Components: tools
 ;Source: "..\..\bin\release\x86\assimp.exe";           DestDir: "{app}\bin\x86"; Components: tools
 ; x64 binaries
 Source: "..\..\bin\release\assimp-vc140-mt.dll";  DestDir: "{app}\bin\x64"
 Source: "..\..\bin\release\assimp_viewer.exe";    DestDir: "{app}\bin\x64"; Components: tools
 Source: "C:\Windows\SysWOW64\D3DCompiler_42.dll"; DestDir: "{app}\bin\x64"; DestName: "D3DCompiler_42.dll"; Components: tools
 Source: "C:\Windows\SysWOW64\D3DX9_42.dll";       DestDir: "{app}\bin\x64"; DestName: "D3DX9_42.dll"; Components: tools
 Source: "..\..\bin\release\assimp.exe";           DestDir: "{app}\bin\x64"; Components: tools
 ; Documentation
 ;Source: "..\..\doc\AssimpDoc_Html\AssimpDoc.chm"; DestDir: "{app}\doc"; Components: help
 ;Source: "..\..\doc\AssimpCmdDoc_Html\AssimpCmdDoc.chm"; DestDir: "{app}\doc"; Components: help
 ;Source: "..\..\doc\datastructure.xml"; DestDir: "{app}\doc"; Components: help
 ; Import libraries
 ;Source: "..\..\lib\release\x86\assimp.lib"; DestDir: "{app}\lib\x86"
 Source: "..\..\lib\release\assimp-vc140-mt.lib"; DestDir: "{app}\lib\x64"
 ; Samples
 Source: "..\..\samples\*"; DestDir: "{app}\samples"; Flags: recursesubdirs; Components: samples
 ; Include files
 Source: "..\..\include\*"; DestDir: "{app}\include"; Flags: recursesubdirs
 ; dAssimp
 ;Source: "..\..\port\dAssimp\*"; DestDir: "{app}\port\D"; Flags: recursesubdirs; Components: dassimp
 ; Assimp.NET
 ;Source: "..\..\port\Assimp.NET\*"; DestDir: "{app}\port\C#"; Flags: recursesubdirs; Components: assimp_net
 ; PyAssimp
 ;Source: "..\..\port\PyAssimp\*"; DestDir: "{app}\port\Python"; Excludes: "*.pyc,*.dll"; Flags: recursesubdirs; Components: pyassimp
 ; Test repository
 ;Source: "..\..\test\models\*"; DestDir: "{app}\test\models"; Flags: recursesubdirs; Components: test
 ;Source: "..\..\test\regression\*"; DestDir: "{app}\test\regression"; Flags: recursesubdirs; Components: test
 ;Source: "..\..\test\models-nonbsd\*"; DestDir: "{app}\test\models-nonbsd"; Flags: recursesubdirs; Components: test_nonbsd
 [Icons]
 Name: "{group}\Assimp Manual"; Filename: "{app}\doc\AssimpDoc.chm" ; Components: help
 Name: "{group}\Assimp Command Line Manual"; Filename: "{app}\doc\AssimpCmdDoc.chm"; Components: help
 Name: "{group}\AssimpView"; Filename: "{app}\bin\x64\assimp_view.exe"; Components: tools; Check: IsWin64
 Name: "{group}\AssimpView"; Filename: "{app}\bin\x86\assimp_view.exe"; Components: tools; Check: not IsWin64
--- a/packaging/windows-innosetup/script_x64.iss
+++ b/packaging/windows-innosetup/script_x64.iss
@ -0,0 +1,74 @@
 ; Setup script for use with Inno Setup.
 [Setup]
 AppName=Open Asset Import Library - SDK
 AppVerName=Open Asset Import Library - SDK (v5.0.0)
 DefaultDirName={pf}\Assimp
 DefaultGroupName=Assimp
 UninstallDisplayIcon={app}\bin\x64\assimp.exe
 OutputDir=out
 AppCopyright=Assimp Development Team
 SetupIconFile=..\..\tools\shared\assimp_tools_icon.ico
 WizardImageFile=compiler:WizModernImage-IS.BMP
 WizardSmallImageFile=compiler:WizModernSmallImage-IS.BMP
 LicenseFile=License.rtf
 OutputBaseFileName=assimp-sdk-5.0.0-setup
 VersionInfoVersion=5.0.0.0
 VersionInfoTextVersion=5.0.0
 VersionInfoCompany=Assimp Development Team
 ArchitecturesInstallIn64BitMode=x64
 [Types]
 Name: "full";    Description: "Full installation"
 Name: "compact"; Description: "Compact installation, no test models or language bindings"
 Name: "custom";  Description: "Custom installation"; Flags: iscustom
 [Components]
 Name: "main";        Description: "Main Files ( 64 Bit )"; Types: full compact custom; Flags: fixed
 Name: "tools";       Description: "Asset Viewer & Command Line Tools (32 and 64 Bit)"; Types: full compact
 Name: "help";        Description: "Help Files"; Types: full compact
 Name: "samples";     Description: "Samples"; Types: full
 Name: "test";        Description: "Test Models (BSD-licensed)"; Types: full
 Name: "test_nonbsd"; Description: "Test Models (other (free) licenses)"; Types: full
 [Run]
 Filename: "{app}\stub\vc_redist.x64.exe"; Parameters: "/qb /passive /quiet"; StatusMsg: "Installing VS2017 redistributable package (64 Bit)"; Check: IsWin64
 [Files]
 Source: "readme_installer.txt"; DestDir: "{app}"; Flags: isreadme
 ; Installer stub
 Source: "vc_redist.x64.exe"; DestDir: "{app}\stub\"; Check: IsWin64
 ; Common stuff
 Source: "..\..\CREDITS"; DestDir: "{app}"
 Source: "..\..\LICENSE"; DestDir: "{app}"
 Source: "..\..\README"; DestDir: "{app}"
 Source: "WEB"; DestDir: "{app}"
 Source: "..\..\scripts\*"; DestDir: "{app}\scripts"; Flags: recursesubdirs
 ; x64 binaries
 Source: "..\..\bin\release\assimp-vc141-mt.dll";  DestDir: "{app}\bin\x64"
 Source: "..\..\bin\release\assimp_viewer.exe";    DestDir: "{app}\bin\x64"; Components: tools
 Source: "C:\Windows\SysWOW64\D3DCompiler_42.dll"; DestDir: "{app}\bin\x64"; DestName: "D3DCompiler_42.dll"; Components: tools
 Source: "C:\Windows\SysWOW64\D3DX9_42.dll";       DestDir: "{app}\bin\x64"; DestName: "D3DX9_42.dll"; Components: tools
 Source: "..\..\bin\release\assimp.exe";           DestDir: "{app}\bin\x64"; Components: tools
 ; Import libraries
 Source: "..\..\lib\release\assimp-vc141-mt.lib"; DestDir: "{app}\lib\x64"
 ; Samples
 Source: "..\..\samples\*"; DestDir: "{app}\samples"; Flags: recursesubdirs; Components: samples
 ; Include files
 Source: "..\..\include\*"; DestDir: "{app}\include"; Flags: recursesubdirs
 ; CMake files
 Source: "..\..\cmake-modules\*"; DestDir: "{app}\cmake-modules"; Flags: recursesubdirs
 [Icons]
 ; Name: "{group}\Assimp Manual"; Filename: "{app}\doc\AssimpDoc.chm" ; Components: help
 ; Name: "{group}\Assimp Command Line Manual"; Filename: "{app}\doc\AssimpCmdDoc.chm"; Components: help
 ; Name: "{group}\AssimpView"; Filename: "{app}\bin\x64\assimp_view.exe"; Components: tools; Check: IsWin64
 ; Name: "{group}\AssimpView"; Filename: "{app}\bin\x86\assimp_view.exe"; Components: tools; Check: not IsWin64
--- a/packaging/windows-innosetup/script_x86.iss
+++ b/packaging/windows-innosetup/script_x86.iss
@ -0,0 +1,75 @@
 ; Setup script for use with Inno Setup.
 [Setup]
 AppName=Open Asset Import Library - SDK
 AppVerName=Open Asset Import Library - SDK (v5.0.0)
 DefaultDirName={pf}\Assimp
 DefaultGroupName=Assimp
 UninstallDisplayIcon={app}\bin\x86\assimp.exe
 OutputDir=out
 AppCopyright=Assimp Development Team
 SetupIconFile=..\..\tools\shared\assimp_tools_icon.ico
 WizardImageFile=compiler:WizModernImage-IS.BMP
 WizardSmallImageFile=compiler:WizModernSmallImage-IS.BMP
 LicenseFile=License.rtf
 OutputBaseFileName=assimp-sdk-5.0.0-setup
 VersionInfoVersion=4.1.0.0
 VersionInfoTextVersion=4.1.0
 VersionInfoCompany=Assimp Development Team
 ;ArchitecturesInstallIn64BitMode=x64
 [Types]
 Name: "full";    Description: "Full installation"
 Name: "compact"; Description: "Compact installation, no test models or language bindings"
 Name: "custom";  Description: "Custom installation"; Flags: iscustom
 [Components]
 Name: "main";        Description: "Main Files (32 and 64 Bit)"; Types: full compact custom; Flags: fixed
 Name: "tools";       Description: "Asset Viewer & Command Line Tools (32 and 64 Bit)"; Types: full compact
 Name: "help";        Description: "Help Files"; Types: full compact
 Name: "samples";     Description: "Samples"; Types: full
 Name: "test";        Description: "Test Models (BSD-licensed)"; Types: full
 Name: "test_nonbsd"; Description: "Test Models (other (free) licenses)"; Types: full
 [Run]
 Filename: "{app}\stub\vc_redist.x86.exe"; Parameters: "/qb /passive /quiet"; StatusMsg: "Installing VS2017 redistributable package (32 Bit)"; Check: not IsWin64
 [Files]
 Source: "readme_installer.txt"; DestDir: "{app}"; Flags: isreadme
 ; Installer stub
 Source: "vc_redist.x86.exe"; DestDir: "{app}\stub\"; Check: not IsWin64
 ; Common stuff
 Source: "..\..\CREDITS"; DestDir: "{app}"
 Source: "..\..\LICENSE"; DestDir: "{app}"
 Source: "..\..\README"; DestDir: "{app}"
 Source: "WEB"; DestDir: "{app}"
 Source: "..\..\scripts\*"; DestDir: "{app}\scripts"; Flags: recursesubdirs
 ; x86 binaries
 Source: "..\..\bin\release\assimp-vc141-mt.dll";  DestDir: "{app}\bin\x86"
 Source: "..\..\bin\release\assimp_viewer.exe";    DestDir: "{app}\bin\x86"; Components: tools
 Source: "C:\Windows\SysWOW64\D3DCompiler_42.dll";     DestDir: "{app}\bin\x86"; Components: tools
 Source: "C:\Windows\SysWOW64\D3DX9_42.dll";           DestDir: "{app}\bin\x86"; Components: tools
 Source: "..\..\bin\release\assimp.exe";           DestDir: "{app}\bin\x86"; Components: tools
 ; Import libraries
 Source: "..\..\lib\release\assimp-vc141-mt.lib"; DestDir: "{app}\lib\x86"
 ; Samples
 Source: "..\..\samples\*"; DestDir: "{app}\samples"; Flags: recursesubdirs; Components: samples
 ; Include files
 Source: "..\..\include\*"; DestDir: "{app}\include"; Flags: recursesubdirs
 ; CMake files
 Source: "..\..\cmake-modules\*"; DestDir: "{app}\cmake-modules"; Flags: recursesubdirs
 [Icons]
 ; Name: "{group}\Assimp Manual"; Filename: "{app}\doc\AssimpDoc.chm" ; Components: help
 ; Name: "{group}\Assimp Command Line Manual"; Filename: "{app}\doc\AssimpCmdDoc.chm"; Components: help
 ; Name: "{group}\AssimpView"; Filename: "{app}\bin\x64\assimp_view.exe"; Components: tools; Check: IsWin64
 ; Name: "{group}\AssimpView"; Filename: "{app}\bin\x86\assimp_view.exe"; Components: tools; Check: not IsWin64
--- a/port/AndroidJNI/README.md
+++ b/port/AndroidJNI/README.md
@ -1,6 +1,6 @@
 Build Asset Importer Lib for Android
 ====================================
-This module provides a fascade for the io-stream-access to files behind the android-asset-management within 
+This module provides a facade for the io-stream-access to files behind the android-asset-management within 
 an Android-native application.
 - It is built as a static library
 - It requires Android NDK with android API > 9 support.
--- a/port/PyAssimp/pyassimp/core.py
+++ b/port/PyAssimp/pyassimp/core.py
@ -93,7 +93,7 @@ def _is_init_type(obj):
        return False
    tname = obj.__class__.__name__
    return not (tname[:2] == 'c_' or tname == 'Structure' \
-            or tname == 'POINTER') and not isinstance(obj,int)
+            or tname == 'POINTER') and not isinstance(obj, (int, str, bytes))
 def _init(self, target = None, parent = None):
    """
--- a/revision.h.in
+++ b/revision.h.in
@ -4,4 +4,15 @@
 #define GitVersion 0x@GIT_COMMIT_HASH@
 #define GitBranch "@GIT_BRANCH@"
 #define VER_MAJOR @ASSIMP_VERSION_MAJOR@
 #define VER_MINOR @ASSIMP_VERSION_MINOR@
 #define VER_PATCH @ASSIMP_VERSION_PATCH@
 #define VER_BUILD @ASSIMP_PACKAGE_VERSION@
 #define STR_HELP(x) #x
 #define STR(x) STR_HELP(x)
 #define VER_FILEVERSION             VER_MAJOR,VER_MINOR,VER_PATCH,VER_BUILD
 #define VER_FILEVERSION_STR         STR(VER_MAJOR) "." STR(VER_MINOR) "." STR(VER_PATCH) "." STR(VER_BUILD)
 #endif // ASSIMP_REVISION_H_INC
--- a/test/models/PLY/cube_test.ply
+++ b/test/models/PLY/cube_test.ply
@ -1,6 +1,6 @@
 ply
 format ascii 1.0
-comment Created by Open Asset Import Library - http://assimp.sf.net (v4.1.412856994)
+comment Created by Open Asset Import Library - http://assimp.sf.net (v4.1.3297435427)
 element vertex 8
 property float x
 property float y
--- a/test/unit/utObjImportExport.cpp
+++ b/test/unit/utObjImportExport.cpp
@ -391,6 +391,39 @@ TEST_F(utObjImportExport, invalid_normals_uvs) {
    EXPECT_NE(nullptr, scene);
 }
 TEST_F(utObjImportExport, no_vt_just_vns) {
    static const char *ObjModel =
 		"v 0 0 0\n"
 		"v 0 0 0\n"
 		"v 0 0 0\n"
 		"v 0 0 0\n"
 		"v 0 0 0\n"
 		"v 0 0 0\n"
 		"v 0 0 0\n"
 		"v 0 0 0\n"
 		"v 0 0 0\n"
 		"v 0 0 0\n"
 		"v 10 0 0\n"
 		"v 0 10 0\n"
 		"vn 0 0 1\n"
 		"vn 0 0 1\n"
 		"vn 0 0 1\n"
 		"vn 0 0 1\n"
 		"vn 0 0 1\n"
 		"vn 0 0 1\n"
 		"vn 0 0 1\n"
 		"vn 0 0 1\n"
 		"vn 0 0 1\n"
 		"vn 0 0 1\n"
 		"vn 0 0 1\n"
 		"vn 0 0 1\n"
 		"f 10/10 11/11 12/12\n";
    Assimp::Importer myImporter;
    const aiScene *scene = myImporter.ReadFileFromMemory(ObjModel, strlen(ObjModel), 0);
    EXPECT_NE(nullptr, scene);
 }
 TEST_F( utObjImportExport, mtllib_after_g ) {
    ::Assimp::Importer importer;
    const aiScene *scene = importer.ReadFile( ASSIMP_TEST_MODELS_DIR "/OBJ/cube_mtllib_after_g.obj", aiProcess_ValidateDataStructure );
--- a/tools/assimp_qt_viewer/CMakeLists.txt
+++ b/tools/assimp_qt_viewer/CMakeLists.txt
@ -1,7 +1,8 @@
 set(PROJECT_VERSION "")
 project(assimp_qt_viewer)
-cmake_minimum_required(VERSION 3.0)
+# Qt5 requires cmake 3.1 or newer
 cmake_minimum_required(VERSION 3.1)
 FIND_PACKAGE(OpenGL QUIET)
--- a/tools/assimp_view/CMakeLists.txt
+++ b/tools/assimp_view/CMakeLists.txt
@ -88,6 +88,8 @@ SET_PROPERTY(TARGET assimp_viewer PROPERTY DEBUG_POSTFIX ${CMAKE_DEBUG_POSTFIX})
 IF ( MSVC )
  ADD_DEFINITIONS( -D_SCL_SECURE_NO_WARNINGS )
  ADD_DEFINITIONS( -D_CRT_SECURE_NO_WARNINGS )
  # assimp_viewer is ANSI (MBCS) throughout
  REMOVE_DEFINITIONS( -DUNICODE -D_UNICODE )
 ENDIF ( MSVC )