Merge branch 'master' into isue_1621

2018-04-06 20:54:01 +02:00 · 2018-04-06 20:54:01 +02:00 · 483541ee25
parent 183224f045 4a645223f8
commit 483541ee25
150 changed files with 7899 additions and 2509 deletions
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@ -110,7 +110,6 @@ if (WIN32)
 endif()
 IF(MSVC)
  SET (CMAKE_PREFIX_PATH "D:\\libs\\devil")
  OPTION( ASSIMP_INSTALL_PDB
    "Install MSVC debug files."
    ON
@ -139,8 +138,7 @@ SET (PROJECT_VERSION "${ASSIMP_VERSION}")
 SET( ASSIMP_PACKAGE_VERSION "0" CACHE STRING "the package-specific version used for uploading the sources" )
-# Needed for openddl_parser config, no use of c++11 at this moment
+# Enable C++1 globally
 ADD_DEFINITIONS( -DOPENDDL_NO_USE_CPP11 )
 set_property( GLOBAL PROPERTY CXX_STANDARD 11 )
 # Get the current working branch
@ -162,7 +160,7 @@ EXECUTE_PROCESS(
 )
 IF(NOT GIT_COMMIT_HASH)
-    SET(GIT_COMMIT_HASH 0)
+  SET(GIT_COMMIT_HASH 0)
 ENDIF(NOT GIT_COMMIT_HASH)
 IF(ASSIMP_DOUBLE_PRECISION)
@ -180,10 +178,10 @@ CONFIGURE_FILE(
 )
 INCLUDE_DIRECTORIES(
-    ./
+  ./
-	include
+  include
-    ${CMAKE_CURRENT_BINARY_DIR}
+  ${CMAKE_CURRENT_BINARY_DIR}
-    ${CMAKE_CURRENT_BINARY_DIR}/include
+  ${CMAKE_CURRENT_BINARY_DIR}/include
 )
 LIST(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake-modules" )
@ -193,14 +191,6 @@ SET(CPACK_COMPONENTS_ALL assimp-bin ${LIBASSIMP_COMPONENT} ${LIBASSIMP-DEV_COMPO
 SET(ASSIMP_LIBRARY_SUFFIX "" CACHE STRING "Suffix to append to library names")
 IF( UNIX )
  # Ensure that we do not run into issues like http://www.tcm.phy.cam.ac.uk/sw/inodes64.html on 32 bit linux
  IF( ${OPERATING_SYSTEM} MATCHES "Android")
  ELSE()
    IF ( CMAKE_SIZEOF_VOID_P EQUAL 4) # only necessary for 32-bit linux
      #ADD_DEFINITIONS(-D_FILE_OFFSET_BITS=64 )
    ENDIF()
  ENDIF()
  # Use GNUInstallDirs for Unix predefined directories
  INCLUDE(GNUInstallDirs)
 ENDIF( UNIX )
@ -213,13 +203,13 @@ IF ((CMAKE_C_COMPILER_ID MATCHES "GNU") AND NOT CMAKE_COMPILER_IS_MINGW)
  SET(LIBSTDC++_LIBRARIES -lstdc++)
 ELSEIF(MSVC)
  # enable multi-core compilation with MSVC
-  add_compile_options(/MP)
+  ADD_COMPILE_OPTIONS(/MP)
-  if("${CMAKE_GENERATOR}" MATCHES "(Win64|IA64)")
+  IF("${CMAKE_GENERATOR}" MATCHES "(Win64|IA64)")
-    add_compile_options( /bigobj )
+    ADD_COMPILE_OPTIONS( /bigobj )
-  endif()
+  ENDIF()
  # disable "elements of array '' will be default initialized" warning on MSVC2013
  IF(MSVC12)
-    add_compile_options(/wd4351)
+    ADD_COMPILE_OPTIONS(/wd4351)
  ENDIF()
 ELSEIF ( "${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang" )
  SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -g -fvisibility=hidden -fPIC -Wall -Wno-long-long -std=c++11" )
@ -230,34 +220,39 @@ ELSEIF( CMAKE_COMPILER_IS_MINGW )
  ADD_DEFINITIONS( -U__STRICT_ANSI__ )
 ENDIF()
-if (ASSIMP_COVERALLS)
+IF (IOS)
-    MESSAGE(STATUS "Coveralls enabled")
+  SET(CMAKE_C_FLAGS   "${CMAKE_C_FLAGS}   -fembed-bitcode -O3")
-    INCLUDE(Coveralls)
+  SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fembed-bitcode -O3")
-    SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -g -O0 -fprofile-arcs -ftest-coverage")
+ENDIF()
    SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -g -O0 -fprofile-arcs -ftest-coverage")
 endif()
-if (ASSIMP_WERROR)
+IF (ASSIMP_COVERALLS)
  MESSAGE(STATUS "Coveralls enabled")
  INCLUDE(Coveralls)
  SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -g -O0 -fprofile-arcs -ftest-coverage")
  SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -g -O0 -fprofile-arcs -ftest-coverage")
 ENDIF()
 IF (ASSIMP_WERROR)
  MESSAGE(STATUS "Treating warnings as errors")
  IF (MSVC)
-    add_compile_options(/WX)
+    ADD_COMPILE_OPTIONS(/WX)
  ELSE()
    SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Werror")
    SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Werror")
  ENDIF()
-endif()
+ENDIF()
-if (ASSIMP_ASAN)
+IF (ASSIMP_ASAN)
-    MESSAGE(STATUS "AddressSanitizer enabled")
+  MESSAGE(STATUS "AddressSanitizer enabled")
-    SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=address")
+  SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=address")
-    SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fsanitize=address")
+  SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fsanitize=address")
-endif()
+ENDIF()
-if (ASSIMP_UBSAN)
+IF (ASSIMP_UBSAN)
-    MESSAGE(STATUS "Undefined Behavior sanitizer enabled")
+  MESSAGE(STATUS "Undefined Behavior sanitizer enabled")
-    SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=undefined -fno-sanitize-recover=all")
+  SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=undefined -fno-sanitize-recover=all")
-    SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fsanitize=undefined -fno-sanitize-recover=all")
+  SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fsanitize=undefined -fno-sanitize-recover=all")
-endif()
+ENDIF()
 INCLUDE (FindPkgMacros)
 INCLUDE (PrecompiledHeader)
@ -290,42 +285,42 @@ ENDIF()
 IF (NOT TARGET uninstall)
  # add make uninstall capability
  CONFIGURE_FILE("${CMAKE_CURRENT_SOURCE_DIR}/cmake-modules/cmake_uninstall.cmake.in" "${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake" IMMEDIATE @ONLY)
-  add_custom_target(uninstall "${CMAKE_COMMAND}" -P "${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake")
+  ADD_CUSTOM_TARGET(uninstall "${CMAKE_COMMAND}" -P "${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake")
 ENDIF()
 # cmake configuration files
 CONFIGURE_FILE("${CMAKE_CURRENT_SOURCE_DIR}/assimp-config.cmake.in"         "${CMAKE_CURRENT_BINARY_DIR}/assimp-config.cmake" @ONLY IMMEDIATE)
 CONFIGURE_FILE("${CMAKE_CURRENT_SOURCE_DIR}/assimp-config-version.cmake.in" "${CMAKE_CURRENT_BINARY_DIR}/assimp-config-version.cmake" @ONLY IMMEDIATE)
-install(FILES "${CMAKE_CURRENT_BINARY_DIR}/assimp-config.cmake"             "${CMAKE_CURRENT_BINARY_DIR}/assimp-config-version.cmake" DESTINATION "${ASSIMP_LIB_INSTALL_DIR}/cmake/assimp-${ASSIMP_VERSION_MAJOR}.${ASSIMP_VERSION_MINOR}" COMPONENT ${LIBASSIMP-DEV_COMPONENT})
+INSTALL(FILES "${CMAKE_CURRENT_BINARY_DIR}/assimp-config.cmake"             "${CMAKE_CURRENT_BINARY_DIR}/assimp-config-version.cmake" DESTINATION "${ASSIMP_LIB_INSTALL_DIR}/cmake/assimp-${ASSIMP_VERSION_MAJOR}.${ASSIMP_VERSION_MINOR}" COMPONENT ${LIBASSIMP-DEV_COMPONENT})
 FIND_PACKAGE( DirectX )
 IF( BUILD_DOCS )
-    add_subdirectory(doc)
+  ADD_SUBDIRECTORY(doc)
 ENDIF( BUILD_DOCS )
 # Look for system installed irrXML
 IF ( SYSTEM_IRRXML )
-    find_package( IrrXML REQUIRED )
+  FIND_PACKAGE( IrrXML REQUIRED )
 ENDIF( SYSTEM_IRRXML )
 # Search for external dependencies, and build them from source if not found
 # Search for zlib
 IF ( NOT ASSIMP_BUILD_ZLIB )
-    find_package(ZLIB)
+  FIND_PACKAGE(ZLIB)
 ENDIF( NOT ASSIMP_BUILD_ZLIB )
 IF( NOT ZLIB_FOUND )
-  message(STATUS "compiling zlib from souces")
+  MESSAGE(STATUS "compiling zlib from souces")
  INCLUDE(CheckIncludeFile)
  INCLUDE(CheckTypeSize)
  INCLUDE(CheckFunctionExists)
  # compile from sources
-  add_subdirectory(contrib/zlib)
+  ADD_SUBDIRECTORY(contrib/zlib)
  SET(ZLIB_FOUND 1)
  SET(ZLIB_LIBRARIES zlibstatic)
  SET(ZLIB_INCLUDE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/contrib/zlib ${CMAKE_CURRENT_BINARY_DIR}/contrib/zlib)
-else(NOT ZLIB_FOUND)
+ELSE(NOT ZLIB_FOUND)
  ADD_DEFINITIONS(-DASSIMP_BUILD_NO_OWN_ZLIB)
  SET(ZLIB_LIBRARIES_LINKED -lz)
 ENDIF(NOT ZLIB_FOUND)
@ -367,7 +362,9 @@ IF (ASSIMP_BUILD_NONFREE_C4D_IMPORTER)
    SET(C4D_INCLUDES "${CMAKE_CURRENT_SOURCE_DIR}/contrib/Melange/includes")
    # pick the correct prebuilt library
-    IF(MSVC14)
+    IF(MSVC15)
      SET(C4D_LIB_POSTFIX "_2017")
    ELSEIF(MSVC14)
      SET(C4D_LIB_POSTFIX "_2015")
    ELSEIF(MSVC12)
      SET(C4D_LIB_POSTFIX "_2013")
@ -408,7 +405,7 @@ ADD_SUBDIRECTORY(contrib)
 ADD_SUBDIRECTORY( code/ )
 IF ( ASSIMP_BUILD_ASSIMP_TOOLS )
  IF ( WIN32 AND DirectX_D3DX9_LIBRARY )
-    option ( ASSIMP_BUILD_ASSIMP_VIEW "If the Assimp view tool is built. (requires DirectX)" ${DirectX_FOUND} )
+    OPTION ( ASSIMP_BUILD_ASSIMP_VIEW "If the Assimp view tool is built. (requires DirectX)" ${DirectX_FOUND} )
    IF ( ASSIMP_BUILD_ASSIMP_VIEW )
      ADD_SUBDIRECTORY( tools/assimp_view/ )
    ENDIF ( ASSIMP_BUILD_ASSIMP_VIEW )
@ -472,8 +469,8 @@ IF(CMAKE_CPACK_COMMAND AND UNIX AND ASSIMP_OPT_BUILD_PACKAGES)
  SET(CPACK_PACKAGE_INSTALL_DIRECTORY       "assimp${ASSIMP_VERSION_MAJOR}.${ASSIMP_VERSION_MINOR}")
  SET(CPACK_RESOURCE_FILE_LICENSE           "${CMAKE_CURRENT_SOURCE_DIR}/LICENSE")
-  string(TOUPPER ${LIBASSIMP_COMPONENT}     "LIBASSIMP_COMPONENT_UPPER")
+  STRING(TOUPPER ${LIBASSIMP_COMPONENT}     "LIBASSIMP_COMPONENT_UPPER")
-  string(TOUPPER ${LIBASSIMP-DEV_COMPONENT} "LIBASSIMP-DEV_COMPONENT_UPPER")
+  STRING(TOUPPER ${LIBASSIMP-DEV_COMPONENT} "LIBASSIMP-DEV_COMPONENT_UPPER")
  SET(CPACK_COMPONENT_ASSIMP-BIN_DISPLAY_NAME                       "tools")
  SET(CPACK_COMPONENT_ASSIMP-BIN_DEPENDS                            "${LIBASSIMP_COMPONENT}" )
@ -503,8 +500,8 @@ IF(CMAKE_CPACK_COMMAND AND UNIX AND ASSIMP_OPT_BUILD_PACKAGES)
    SET(CPACK_DEBIAN_DISTRIBUTION_RELEASES lucid maverick natty oneiric precise CACHE STRING "Release code-names of the distrubiton release")
  ENDIF()
  SET(DPUT_HOST "" CACHE STRING "PPA repository to upload the debian sources")
-  include(CPack)
+  INCLUDE(CPack)
-  include(DebSourcePPA)
+  INCLUDE(DebSourcePPA)
 ENDIF()
 if(WIN32)
@ -516,14 +513,16 @@ if(WIN32)
    SET(LIB_DIR "${PROJECT_SOURCE_DIR}/lib32/")
  ENDIF()
-  if(MSVC12)
+  IF(MSVC12)
    SET(ASSIMP_MSVC_VERSION "vc120")
-  elseif(MSVC14)
+  ELSEIF(MSVC14)
    SET(ASSIMP_MSVC_VERSION "vc140")
  ELSEIF(MSVC15)
    SET(ASSIMP_MSVC_VERSION "vc141")
  ENDIF(MSVC12)
-  if(MSVC12 OR MSVC14)
+  IF(MSVC12 OR MSVC14 OR MSVC15 )
-    add_custom_target(UpdateAssimpLibsDebugSymbolsAndDLLs COMMENT "Copying Assimp Libraries ..." VERBATIM)
+    ADD_CUSTOM_TARGET(UpdateAssimpLibsDebugSymbolsAndDLLs COMMENT "Copying Assimp Libraries ..." VERBATIM)
    IF(CMAKE_GENERATOR MATCHES "^Visual Studio")
      ADD_CUSTOM_COMMAND(TARGET UpdateAssimpLibsDebugSymbolsAndDLLs COMMAND ${CMAKE_COMMAND} -E copy ${CMAKE_BINARY_DIR}/code/Release/assimp-${ASSIMP_MSVC_VERSION}-mt.dll	${BIN_DIR}assimp-${ASSIMP_MSVC_VERSION}-mt.dll VERBATIM)
      ADD_CUSTOM_COMMAND(TARGET UpdateAssimpLibsDebugSymbolsAndDLLs COMMAND ${CMAKE_COMMAND} -E copy ${CMAKE_BINARY_DIR}/code/Release/assimp-${ASSIMP_MSVC_VERSION}-mt.exp	${LIB_DIR}assimp-${ASSIMP_MSVC_VERSION}-mt.exp VERBATIM)
@ -544,5 +543,5 @@ if(WIN32)
      ADD_CUSTOM_COMMAND(TARGET UpdateAssimpLibsDebugSymbolsAndDLLs COMMAND ${CMAKE_COMMAND} -E copy ${CMAKE_BINARY_DIR}/code/assimp-${ASSIMP_MSVC_VERSION}-mtd.pdb		${LIB_DIR}assimp-${ASSIMP_MSVC_VERSION}-mtd.pdb VERBATIM)
      ADD_CUSTOM_COMMAND(TARGET UpdateAssimpLibsDebugSymbolsAndDLLs COMMAND ${CMAKE_COMMAND} -E copy ${CMAKE_BINARY_DIR}/code/assimp-${ASSIMP_MSVC_VERSION}-mtd.pdb		${LIB_DIR}assimp-${ASSIMP_MSVC_VERSION}-mtd.pdb VERBATIM)
    ENDIF()
-  ENDIF(MSVC12 OR MSVC14)
+  ENDIF(MSVC12 OR MSVC14 OR MSVC15 )
 ENDIF (WIN32)
--- a/17
+++ b/17
@ -157,12 +157,27 @@ Contributed ExportProperties interface
 Contributed X File exporter
 Contributed Step (stp) exporter
 - Thomas Iorns (mesilliac)
 Initial FBX Export support
 For a more detailed list just check: https://github.com/assimp/assimp/network/members
-Patreons:
+
 ========
 Patreons
 ========
 Huge thanks to our Patreons!
 - migenius
 - Marcus
 - Cort
 - elect
 - Steffen
 ===================
 Commercial Sponsors
 ===================
 - MyDidimo (mydidimo.com): Sponsored development of FBX Export support
--- a/Readme.md
+++ b/Readme.md
@ -32,32 +32,32 @@ Please check our Wiki as well: https://github.com/assimp/assimp/wiki
 #### Supported file formats ####
 A full list [is here](http://assimp.org/main_features_formats.html).
 __Importers__:
 - 3D
- 3DS
+- [3DS](https://en.wikipedia.org/wiki/.3ds)
- 3MF
+- [3MF](https://en.wikipedia.org/wiki/3D_Manufacturing_Format)
 - AC
- AC3D
+- [AC3D](https://en.wikipedia.org/wiki/AC3D)
 - ACC
 - AMJ
 - ASE
 - ASK
 - B3D
- BLEND (Blender)
+- [BLEND](https://en.wikipedia.org/wiki/.blend_(file_format))
- BVH
+- [BVH](https://en.wikipedia.org/wiki/Biovision_Hierarchy)
 - COB
 - CMS
- DAE/Collada
+- COB
- DXF
+- [DAE/Collada](https://en.wikipedia.org/wiki/COLLADA)
 - [DXF](https://en.wikipedia.org/wiki/AutoCAD_DXF)
 - ENFF
- FBX
+- [FBX](https://en.wikipedia.org/wiki/FBX)
- glTF 1.0 + GLB
+- [glTF 1.0](https://en.wikipedia.org/wiki/GlTF#glTF_1.0) + GLB
- glTF 2.0
+- [glTF 2.0](https://en.wikipedia.org/wiki/GlTF#glTF_2.0)
 - HMB
 - IFC-STEP
 - IRR / IRRMESH
- LWO
+- [LWO](https://en.wikipedia.org/wiki/LightWave_3D)
 - LWS
 - LXO
 - MD2
@ -70,10 +70,10 @@ __Importers__:
 - MS3D
 - NDO
 - NFF
- OBJ
+- [OBJ](https://en.wikipedia.org/wiki/Wavefront_.obj_file)
- OFF
+- [OFF](https://en.wikipedia.org/wiki/OFF_(file_format))
- OGEX
+- [OGEX](https://en.wikipedia.org/wiki/Open_Game_Engine_Exchange)
- PLY
+- [PLY](https://en.wikipedia.org/wiki/PLY_(file_format))
 - PMX
 - PRJ
 - Q3O
@ -82,19 +82,19 @@ __Importers__:
 - SCN
 - SIB
 - SMD
- STL
+- [STP](https://en.wikipedia.org/wiki/ISO_10303-21)
- STP
+- [STL](https://en.wikipedia.org/wiki/STL_(file_format))
 - TER
 - UC
 - VTA
 - X
- X3D
+- [X3D](https://en.wikipedia.org/wiki/X3D)
 - XGL
 - ZGL
 Additionally, some formats are supported by dependency on non-free code or external SDKs (not built by default):
- C4D (https://github.com/assimp/assimp/wiki/Cinema4D-&-Melange)
+- [C4D](https://en.wikipedia.org/wiki/Cinema_4D) (https://github.com/assimp/assimp/wiki/Cinema4D-&-Melange)
 __Exporters__:
@ -109,6 +109,8 @@ __Exporters__:
 - STEP
 - glTF 1.0 (partial)
 - glTF 2.0 (partial)
 - 3MF ( experimental )
 - FBX ( experimental )
 ### Building ###
 Take a look into the `INSTALL` file. Our build system is CMake, if you used CMake before there is a good chance you know what to do.
@ -120,7 +122,7 @@ Take a look into the `INSTALL` file. Our build system is CMake, if you used CMak
 * [Pascal](port/AssimpPascal/Readme.md)
 * [Javascript (Alpha)](https://github.com/makc/assimp2json)
 * [Unity 3d Plugin](https://www.assetstore.unity3d.com/en/#!/content/91777)
-* [JVM](https://github.com/kotlin-graphics/assimp) Full jvm port (currently supported obj, ply, stl, collada, md2)
+* [JVM](https://github.com/kotlin-graphics/assimp) Full jvm port (current [status](https://github.com/kotlin-graphics/assimp/wiki/Status))
 ### Other tools ###
 [open3mod](https://github.com/acgessler/open3mod) is a powerful 3D model viewer based on Assimp's import and export abilities.
--- a/assimp-config.cmake.in
+++ b/assimp-config.cmake.in
@ -34,36 +34,18 @@ if( MSVC )
  else()
    set(MSVC_PREFIX "vc150")
  endif()
-  set(ASSIMP_LIBRARY_SUFFIX "@ASSIMP_LIBRARY_SUFFIX@-${MSVC_PREFIX}-mt" CACHE STRING "the suffix for the assimp windows library" FORCE)
+  set(ASSIMP_LIBRARY_SUFFIX "@ASSIMP_LIBRARY_SUFFIX@-${MSVC_PREFIX}-mt" CACHE STRING "the suffix for the assimp windows library" )
 else()
-  set(ASSIMP_LIBRARY_SUFFIX "@ASSIMP_LIBRARY_SUFFIX@" CACHE STRING "the suffix for the openrave libraries" FORCE)
+  set(ASSIMP_LIBRARY_SUFFIX "@ASSIMP_LIBRARY_SUFFIX@" CACHE STRING "the suffix for the openrave libraries" )
 endif()
 set( ASSIMP_CXX_FLAGS ) # dynamically linked library
 if( WIN32 )
  # for visual studio linking, most of the time boost dlls will be used
  set( ASSIMP_CXX_FLAGS " -DBOOST_ALL_DYN_LINK -DBOOST_ALL_NO_LIB")
 endif()
 set( ASSIMP_LINK_FLAGS "" )
 set( ASSIMP_LIBRARY_DIRS "${ASSIMP_ROOT_DIR}/@ASSIMP_LIB_INSTALL_DIR@")
 set( ASSIMP_INCLUDE_DIRS "${ASSIMP_ROOT_DIR}/@ASSIMP_INCLUDE_INSTALL_DIR@")
 set( ASSIMP_LIBRARIES assimp${ASSIMP_LIBRARY_SUFFIX})
 set( ASSIMP_LIBRARIES ${ASSIMP_LIBRARIES}@CMAKE_DEBUG_POSTFIX@)
 # search for the boost version assimp was compiled with
 #set(Boost_USE_MULTITHREAD ON)
 #set(Boost_USE_STATIC_LIBS OFF)
 #set(Boost_USE_STATIC_RUNTIME OFF)
 #find_package(Boost ${ASSIMP_Boost_VERSION} EXACT COMPONENTS thread date_time)
 #if(Boost_VERSION AND NOT "${Boost_VERSION}" STREQUAL "0")
 #	set( ASSIMP_INCLUDE_DIRS "${ASSIMP_INCLUDE_DIRS}" ${Boost_INCLUDE_DIRS})
 #else(Boost_VERSION AND NOT "${Boost_VERSION}" STREQUAL "0")
 #	message(WARNING "Failed to find Boost ${ASSIMP_Boost_VERSION} necessary for assimp")
 #endif(Boost_VERSION AND NOT "${Boost_VERSION}" STREQUAL "0")
 # the boost version assimp was compiled with
 set( ASSIMP_Boost_VERSION "@Boost_MAJOR_VERSION@.@Boost_MINOR_VERSION@")
 # for compatibility with pkg-config
 set(ASSIMP_CFLAGS_OTHER "${ASSIMP_CXX_FLAGS}")
 set(ASSIMP_LDFLAGS_OTHER "${ASSIMP_LINK_FLAGS}")
@ -74,7 +56,6 @@ MARK_AS_ADVANCED(
  ASSIMP_LINK_FLAGS
  ASSIMP_INCLUDE_DIRS
  ASSIMP_LIBRARIES
  ASSIMP_Boost_VERSION
  ASSIMP_CFLAGS_OTHER
  ASSIMP_LDFLAGS_OTHER
  ASSIMP_LIBRARY_SUFFIX
--- a/code/3DSConverter.cpp
+++ b/code/3DSConverter.cpp
@ -72,7 +72,7 @@ void Discreet3DSImporter::ReplaceDefaultMaterial()
    unsigned int idx( NotSet );
    for (unsigned int i = 0; i < mScene->mMaterials.size();++i)
    {
-        std::string s = mScene->mMaterials[i].mName;
+        std::string &s = mScene->mMaterials[i].mName;
        for ( std::string::iterator it = s.begin(); it != s.end(); ++it ) {
            *it = static_cast< char >( ::tolower( *it ) );
        }
--- a/code/3DSExporter.cpp
+++ b/code/3DSExporter.cpp
@ -184,7 +184,7 @@ void ExportScene3DS(const char* pFile, IOSystem* pIOSystem, const aiScene* pScen
 } // end of namespace Assimp
 // ------------------------------------------------------------------------------------------------
-Discreet3DSExporter:: Discreet3DSExporter(std::shared_ptr<IOStream> outfile, const aiScene* scene)
+Discreet3DSExporter:: Discreet3DSExporter(std::shared_ptr<IOStream> &outfile, const aiScene* scene)
 : scene(scene)
 , writer(outfile)
 {
--- a/code/3DSExporter.h
+++ b/code/3DSExporter.h
@ -67,7 +67,7 @@ namespace Assimp
 // ------------------------------------------------------------------------------------------------
 class Discreet3DSExporter {
 public:
-    Discreet3DSExporter(std::shared_ptr<IOStream> outfile, const aiScene* pScene);
+    Discreet3DSExporter(std::shared_ptr<IOStream> &outfile, const aiScene* pScene);
    ~Discreet3DSExporter();
 private:
--- a/code/3DSLoader.cpp
+++ b/code/3DSLoader.cpp
@ -71,7 +71,7 @@ static const aiImporterDesc desc = {
    0,
    0,
    0,
-    "3ds prj"
+    "3ds prj 3DS PRJ"
 };
@ -113,22 +113,24 @@ Discreet3DSImporter::Discreet3DSImporter()
 , mScene()
 , mMasterScale()
 , bHasBG()
-, bIsPrj()
+, bIsPrj() {
-{}
+    // empty
 }
 // ------------------------------------------------------------------------------------------------
 // Destructor, private as well
-Discreet3DSImporter::~Discreet3DSImporter()
+Discreet3DSImporter::~Discreet3DSImporter() {
-{}
+    // empty
 }
 // ------------------------------------------------------------------------------------------------
 // Returns whether the class can handle the format of the given file.
-bool Discreet3DSImporter::CanRead( const std::string& pFile, IOSystem* pIOHandler, bool checkSig) const
+bool Discreet3DSImporter::CanRead( const std::string& pFile, IOSystem* pIOHandler, bool checkSig) const {
 {
    std::string extension = GetExtension(pFile);
-    if(extension == "3ds" || extension == "prj" ) {
+    if(extension == "3ds" || extension == "3DS" || extension == "prj"|| extension == "PRJ" ) {
        return true;
    }
    if (!extension.length() || checkSig) {
        uint16_t token[3];
        token[0] = 0x4d4d;
@ -210,7 +212,7 @@ void Discreet3DSImporter::InternReadFile( const std::string& pFile,
    ConvertScene(pScene);
    // Generate the node graph for the scene. This is a little bit
-    // tricky since we'll need to split some meshes into submeshes
+    // tricky since we'll need to split some meshes into sub-meshes
    GenerateNodeGraph(pScene);
    // Now apply the master scaling factor to the scene
@ -347,7 +349,7 @@ void Discreet3DSImporter::ParseObjectChunk()
    case Discreet3DS::CHUNK_MAT_MATERIAL:
        // Add a new material to the list
-        mScene->mMaterials.push_back(D3DS::Material(std::string("UNNAMED_" + std::to_string(mScene->mMaterials.size()))));
+        mScene->mMaterials.push_back(D3DS::Material(std::string("UNNAMED_" + to_string(mScene->mMaterials.size()))));
        ParseMaterialChunk();
        break;
--- a/code/3MFXmlTags.h
+++ b/code/3MFXmlTags.h
@ -45,6 +45,11 @@ namespace Assimp {
 namespace D3MF {
 namespace XmlTag {
    // Meta-data
    static const std::string meta = "metadata";
    static const std::string meta_name = "name";
    // Model-data specific tags
    static const std::string model = "model";
    static const std::string model_unit = "unit";
    static const std::string metadata = "metadata";
@ -62,6 +67,8 @@ namespace XmlTag {
    static const std::string v2 = "v2";
    static const std::string v3 = "v3";
    static const std::string id = "id";
    static const std::string pid = "pid";
    static const std::string p1 = "p1";
    static const std::string name = "name";
    static const std::string type = "type";
    static const std::string build = "build";
@ -69,6 +76,14 @@ namespace XmlTag {
    static const std::string objectid = "objectid";
    static const std::string transform = "transform";
    // Material definitions
    static const std::string basematerials = "basematerials";
    static const std::string basematerials_id = "id";
    static const std::string basematerials_base = "base";
    static const std::string basematerials_name = "name";
    static const std::string basematerials_displaycolor = "displaycolor";
    // Meta info tags
    static const std::string CONTENT_TYPES_ARCHIVE = "[Content_Types].xml";
    static const std::string ROOT_RELATIONSHIPS_ARCHIVE = "_rels/.rels";
    static const std::string SCHEMA_CONTENTTYPES = "http://schemas.openxmlformats.org/package/2006/content-types";
@ -83,7 +98,6 @@ namespace XmlTag {
    static const std::string PACKAGE_TEXTURE_RELATIONSHIP_TYPE = "http://schemas.microsoft.com/3dmanufacturing/2013/01/3dtexture";
    static const std::string PACKAGE_CORE_PROPERTIES_RELATIONSHIP_TYPE = "http://schemas.openxmlformats.org/package/2006/relationships/metadata/core-properties";
    static const std::string PACKAGE_THUMBNAIL_RELATIONSHIP_TYPE = "http://schemas.openxmlformats.org/package/2006/relationships/metadata/thumbnail";
 }
 } // Namespace D3MF
--- a/code/AMFImporter_Postprocess.cpp
+++ b/code/AMFImporter_Postprocess.cpp
@ -156,10 +156,11 @@ size_t AMFImporter::PostprocessHelper_GetTextureID_Or_Create(const std::string&
 	TextureConverted_Index = 0;
 	for(const SPP_Texture& tex_convd: mTexture_Converted)
 	{
-		if(tex_convd.ID == TextureConverted_ID)
+        if ( tex_convd.ID == TextureConverted_ID ) {
-			return TextureConverted_Index;
+            return TextureConverted_Index;
-		else
+        } else {
-			TextureConverted_Index++;
+            ++TextureConverted_Index;
        }
 	}
 	//
--- a/code/ASELoader.cpp
+++ b/code/ASELoader.cpp
@ -583,7 +583,7 @@ void ASEImporter::AddNodes (const std::vector<BaseNode*>& nodes,
        node->mTransformation = mParentAdjust*snode->mTransform;
        // Add sub nodes - prevent stack overflow due to recursive parenting
-        if (node->mName != node->mParent->mName) {
+        if (node->mName != node->mParent->mName && node->mName != node->mParent->mParent->mName ) {
            AddNodes(nodes,node,node->mName.data,snode->mTransform);
        }
--- a/code/ASEParser.cpp
+++ b/code/ASEParser.cpp
@ -267,7 +267,9 @@ void Parser::Parse()
                // at the file extension (ASE, ASK, ASC)
                // *************************************************************
-                if (fmt)iFileFormat = fmt;
+                if ( fmt ) {
                    iFileFormat = fmt;
                }
                continue;
            }
            // main scene information
@ -427,28 +429,25 @@ void Parser::ParseLV1SoftSkinBlock()
                        // Reserve enough storage
                        vert.mBoneWeights.reserve(numWeights);
-                        for (unsigned int w = 0; w < numWeights;++w)
+                        std::string bone;
-                        {
+                        for (unsigned int w = 0; w < numWeights;++w) {
-                            std::string bone;
+                            bone.clear();
                            ParseString(bone,"*MESH_SOFTSKINVERTS.Bone");
                            // Find the bone in the mesh's list
                            std::pair<int,ai_real> me;
                            me.first = -1;
-                            for (unsigned int n = 0; n < curMesh->mBones.size();++n)
+                            for (unsigned int n = 0; n < curMesh->mBones.size();++n) {
-                            {
+                                if (curMesh->mBones[n].mName == bone) {
                                if (curMesh->mBones[n].mName == bone)
                                {
                                    me.first = n;
                                    break;
                                }
                            }
-                            if (-1 == me.first)
+                            if (-1 == me.first) {
                            {
                                // We don't have this bone yet, so add it to the list
-                                me.first = (int)curMesh->mBones.size();
+                                me.first = static_cast<int>( curMesh->mBones.size() );
-                                curMesh->mBones.push_back(ASE::Bone(bone));
+                                curMesh->mBones.push_back( ASE::Bone( bone ) );
                            }
                            ParseLV4MeshFloat( me.second );
@ -745,6 +744,7 @@ void Parser::ParseLV3MapBlock(Texture& map)
    // empty the texture won't be used later.
    // ***********************************************************
    bool parsePath = true;
    std::string temp;
    while (true)
    {
        if ('*' == *filePtr)
@ -753,7 +753,7 @@ void Parser::ParseLV3MapBlock(Texture& map)
            // type of map
            if (TokenMatch(filePtr,"MAP_CLASS" ,9))
            {
-                std::string temp;
+                temp.clear();
                if(!ParseString(temp,"*MAP_CLASS"))
                    SkipToNextToken();
                if (temp != "Bitmap" && temp != "Normal Bump")
--- a/code/BVHLoader.cpp
+++ b/code/BVHLoader.cpp
@ -199,6 +199,7 @@ aiNode* BVHLoader::ReadNode()
    Node& internNode = mNodes.back();
    // now read the node's contents
    std::string siteToken;
    while( 1)
    {
        std::string token = GetNextToken();
@ -218,7 +219,8 @@ aiNode* BVHLoader::ReadNode()
        else if( token == "End")
        {
            // The real symbol is "End Site". Second part comes in a separate token
-            std::string siteToken = GetNextToken();
+            siteToken.clear();
            siteToken = GetNextToken();
            if( siteToken != "Site")
                ThrowException( format() << "Expected \"End Site\" keyword, but found \"" << token << " " << siteToken << "\"." );
@ -262,21 +264,18 @@ aiNode* BVHLoader::ReadEndSite( const std::string& pParentName)
    aiNode* node = new aiNode( "EndSite_" + pParentName);
    // now read the node's contents. Only possible entry is "OFFSET"
-    while( 1)
+    std::string token;
-    {
+    while( 1) {
-        std::string token = GetNextToken();
+        token.clear();
        token = GetNextToken();
        // end node's offset
-        if( token == "OFFSET")
+        if( token == "OFFSET") {
        {
            ReadNodeOffset( node);
-        }
+        } else if( token == "}") {
        else if( token == "}")
        {
            // we're done with the end node
            break;
-        } else
+        } else {
        {
            // everything else is a parse error
            ThrowException( format() << "Unknown keyword \"" << token << "\"." );
        }
@ -296,8 +295,10 @@ void BVHLoader::ReadNodeOffset( aiNode* pNode)
    offset.z = GetNextTokenAsFloat();
    // build a transformation matrix from it
-    pNode->mTransformation = aiMatrix4x4( 1.0f, 0.0f, 0.0f, offset.x, 0.0f, 1.0f, 0.0f, offset.y,
+    pNode->mTransformation = aiMatrix4x4( 1.0f, 0.0f, 0.0f, offset.x,
-        0.0f, 0.0f, 1.0f, offset.z, 0.0f, 0.0f, 0.0f, 1.0f);
+                                          0.0f, 1.0f, 0.0f, offset.y,
                                          0.0f, 0.0f, 1.0f, offset.z,
                                          0.0f, 0.0f, 0.0f, 1.0f);
 }
 // ------------------------------------------------------------------------------------------------
--- a/code/BVHLoader.h
+++ b/code/BVHLoader.h
@ -84,7 +84,10 @@ class BVHLoader : public BaseImporter
        std::vector<ChannelType> mChannels;
        std::vector<float> mChannelValues; // motion data values for that node. Of size NumChannels * NumFrames
-        Node() { }
+        Node()
        : mNode(nullptr)
        { }
        explicit Node( const aiNode* pNode) : mNode( pNode) { }
    };
--- a/code/BaseImporter.cpp
+++ b/code/BaseImporter.cpp
@ -115,13 +115,12 @@ void BaseImporter::SetupProperties(const Importer* /*pImp*/)
 }
 // ------------------------------------------------------------------------------------------------
-void BaseImporter::GetExtensionList(std::set<std::string>& extensions)
+void BaseImporter::GetExtensionList(std::set<std::string>& extensions) {
 {
    const aiImporterDesc* desc = GetInfo();
-    ai_assert(desc != NULL);
+    ai_assert(desc != nullptr);
    const char* ext = desc->mFileExtensions;
-    ai_assert(ext != NULL);
+    ai_assert(ext != nullptr );
    const char* last = ext;
    do {
@ -145,21 +144,19 @@ void BaseImporter::GetExtensionList(std::set<std::string>& extensions)
    unsigned int        searchBytes /* = 200 */,
    bool                tokensSol /* false */)
 {
-    ai_assert( NULL != tokens );
+    ai_assert( nullptr != tokens );
    ai_assert( 0 != numTokens );
    ai_assert( 0 != searchBytes);
-    if (!pIOHandler)
+    if ( nullptr == pIOHandler ) {
        return false;
    }
    std::unique_ptr<IOStream> pStream (pIOHandler->Open(pFile));
    if (pStream.get() ) {
        // read 200 characters from the file
        std::unique_ptr<char[]> _buffer (new char[searchBytes+1 /* for the '\0' */]);
        char* buffer = _buffer.get();
        if( NULL == buffer ) {
            return false;
        }
        const size_t read = pStream->Read(buffer,1,searchBytes);
        if( !read ) {
@ -181,9 +178,17 @@ void BaseImporter::GetExtensionList(std::set<std::string>& extensions)
        }
        *cur2 = '\0';
-        for (unsigned int i = 0; i < numTokens;++i) {
+        std::string token;
-            ai_assert(NULL != tokens[i]);
+        for (unsigned int i = 0; i < numTokens; ++i ) {
-            const char* r = strstr(buffer,tokens[i]);
+            ai_assert( nullptr != tokens[i] );
            const size_t len( strlen( tokens[ i ] ) );
            token.clear();
            const char *ptr( tokens[ i ] );
            for ( size_t tokIdx = 0; tokIdx < len; ++tokIdx ) {
                token.push_back( tolower( *ptr ) );
                ++ptr;
            }
            const char* r = strstr( buffer, token.c_str() );
            if( !r ) {
                continue;
            }
@ -246,7 +251,8 @@ void BaseImporter::GetExtensionList(std::set<std::string>& extensions)
 /* static */ bool BaseImporter::CheckMagicToken(IOSystem* pIOHandler, const std::string& pFile,
    const void* _magic, unsigned int num, unsigned int offset, unsigned int size)
 {
-    ai_assert(size <= 16 && _magic);
+    ai_assert( size <= 16 );
    ai_assert( _magic );
    if (!pIOHandler) {
        return false;
--- a/code/BlenderDNA.cpp
+++ b/code/BlenderDNA.cpp
@ -58,12 +58,11 @@ using namespace Assimp::Formatter;
 static bool match4(StreamReaderAny& stream, const char* string) {
    ai_assert( nullptr != string );
-    char tmp[] = {
+    char tmp[4];
-        (const char)(stream).GetI1(),
+    tmp[ 0 ] = ( stream ).GetI1();
-        (const char)(stream).GetI1(),
+    tmp[ 1 ] = ( stream ).GetI1();
-        (const char)(stream).GetI1(),
+    tmp[ 2 ] = ( stream ).GetI1();
-        (const char)(stream).GetI1()
+    tmp[ 3 ] = ( stream ).GetI1();
    };
    return (tmp[0]==string[0] && tmp[1]==string[1] && tmp[2]==string[2] && tmp[3]==string[3]);
 }
--- a/code/BlenderDNA.h
+++ b/code/BlenderDNA.h
@ -205,7 +205,7 @@ enum ErrorPolicy {
 // -------------------------------------------------------------------------------
 /** Represents a data structure in a BLEND file. A Structure defines n fields
- *  and their locatios and encodings the input stream. Usually, every
+ *  and their locations and encodings the input stream. Usually, every
 *  Structure instance pertains to one equally-named data structure in the
 *  BlenderScene.h header. This class defines various utilities to map a
 *  binary `blob` read from the file to such a structure instance with
--- a/code/BlenderDNA.inl
+++ b/code/BlenderDNA.inl
@ -502,7 +502,7 @@ const FileBlockHead* Structure :: LocateFileBlockForAddress(const Pointer & ptrv
 {
    // the file blocks appear in list sorted by
    // with ascending base addresses so we can run a
-    // binary search to locate the pointee quickly.
+    // binary search to locate the pointer quickly.
    // NOTE: Blender seems to distinguish between side-by-side
    // data (stored in the same data block) and far pointers,
--- a/code/BlenderIntermediate.h
+++ b/code/BlenderIntermediate.h
@ -122,9 +122,11 @@ namespace Blender {
 #   pragma warning(disable:4351)
 #endif
    // As counter-intuitive as it may seem, a comparator must return false for equal values.
    // The C++ standard defines and expects this behavior: true if lhs < rhs, false otherwise.
    struct ObjectCompare {
        bool operator() (const Object* left, const Object* right) const {
-            return ::strncmp(left->id.name, right->id.name, strlen( left->id.name ) ) == 0;
+            return ::strncmp(left->id.name, right->id.name, strlen( left->id.name ) ) < 0;
        }
    };
@ -143,9 +145,11 @@ namespace Blender {
            , db(db)
        {}
        // As counter-intuitive as it may seem, a comparator must return false for equal values.
        // The C++ standard defines and expects this behavior: true if lhs < rhs, false otherwise.
        struct ObjectCompare {
            bool operator() (const Object* left, const Object* right) const {
-                return ::strncmp( left->id.name, right->id.name, strlen( left->id.name ) ) == 0;
+                return ::strncmp( left->id.name, right->id.name, strlen( left->id.name ) ) < 0;
            }
        };
--- a/code/BlenderLoader.cpp
+++ b/code/BlenderLoader.cpp
@ -154,14 +154,6 @@ void BlenderImporter::SetupProperties(const Importer* /*pImp*/)
    // nothing to be done for the moment
 }
 struct free_it {
    free_it(void* free) : free(free) {}
    ~free_it() {
        ::free(this->free);
    }
    void* free;
 };
 // ------------------------------------------------------------------------------------------------
 // Imports the given file into the given scene structure.
@ -169,8 +161,7 @@ void BlenderImporter::InternReadFile( const std::string& pFile,
    aiScene* pScene, IOSystem* pIOHandler)
 {
 #ifndef ASSIMP_BUILD_NO_COMPRESSED_BLEND
-    Bytef* dest = NULL;
+    std::vector<Bytef> uncompressed;
    free_it free_it_really(dest);
 #endif
@ -218,6 +209,7 @@ void BlenderImporter::InternReadFile( const std::string& pFile,
        size_t total = 0l;
        // TODO: be smarter about this, decompress directly into heap buffer
        // and decompress the data .... do 1k chunks in the hope that we won't kill the stack
 #define MYBLOCK 1024
        Bytef block[MYBLOCK];
@ -232,8 +224,8 @@ void BlenderImporter::InternReadFile( const std::string& pFile,
            }
            const size_t have = MYBLOCK - zstream.avail_out;
            total += have;
-            dest = reinterpret_cast<Bytef*>( realloc(dest,total) );
+            uncompressed.resize(total);
-            memcpy(dest + total - have,block,have);
+            memcpy(uncompressed.data() + total - have,block,have);
        }
        while (ret != Z_STREAM_END);
@ -241,7 +233,7 @@ void BlenderImporter::InternReadFile( const std::string& pFile,
        inflateEnd(&zstream);
        // replace the input stream with a memory stream
-        stream.reset(new MemoryIOStream(reinterpret_cast<uint8_t*>(dest),total));
+        stream.reset(new MemoryIOStream(reinterpret_cast<uint8_t*>(uncompressed.data()),total));
        // .. and retry
        stream->Read(magic,7,1);
--- a/code/BlenderScene.cpp
+++ b/code/BlenderScene.cpp
@ -116,7 +116,7 @@ template <> void Structure :: Convert<MTex> (
    ReadField<ErrorPolicy_Igno>(temp,"projy",db);
    dest.projy = static_cast<Assimp::Blender::MTex::Projection>(temp);
    ReadField<ErrorPolicy_Igno>(temp,"projz",db);
-    dest.projx = static_cast<Assimp::Blender::MTex::Projection>(temp);
+    dest.projz = static_cast<Assimp::Blender::MTex::Projection>(temp);
    ReadField<ErrorPolicy_Igno>(dest.mapping,"mapping",db);
    ReadFieldArray<ErrorPolicy_Igno>(dest.ofs,"ofs",db);
    ReadFieldArray<ErrorPolicy_Igno>(dest.size,"size",db);
--- a/code/CMakeLists.txt
+++ b/code/CMakeLists.txt
@ -72,6 +72,7 @@ SET( PUBLIC_HEADERS
  ${HEADER_PATH}/matrix4x4.h
  ${HEADER_PATH}/matrix4x4.inl
  ${HEADER_PATH}/mesh.h
  ${HEADER_PATH}/pbrmaterial.h
  ${HEADER_PATH}/postprocess.h
  ${HEADER_PATH}/quaternion.h
  ${HEADER_PATH}/quaternion.inl
@ -176,8 +177,6 @@ SET( Common_SRCS
  SkeletonMeshBuilder.cpp
  SplitByBoneCountProcess.cpp
  SplitByBoneCountProcess.h
  ScaleProcess.cpp
  ScaleProcess.h
  StandardShapes.cpp
  TargetAnimation.cpp
  TargetAnimation.h
@ -187,6 +186,8 @@ SET( Common_SRCS
  Bitmap.cpp
  Version.cpp
  CreateAnimMesh.cpp
  simd.h
  simd.cpp
 )
 SOURCE_GROUP(Common FILES ${Common_SRCS})
@ -484,9 +485,9 @@ ADD_ASSIMP_IMPORTER( IFC
 )
 if (ASSIMP_BUILD_IFC_IMPORTER)
  if (MSVC)
-    set_source_files_properties(IFCReaderGen1.cpp IFCReaderGen2.cpp PROPERTIES COMPILE_FLAGS "/bigobj")
+    set_source_files_properties(Importer/IFC/IFCReaderGen1_2x3.cpp Importer/IFC/IFCReaderGen2_2x3.cpp PROPERTIES COMPILE_FLAGS "/bigobj")
  elseif(CMAKE_COMPILER_IS_MINGW)
-    set_source_files_properties(IFCReaderGen1.cpp IFCReaderGen2.cpp PROPERTIES COMPILE_FLAGS "-O2 -Wa,-mbig-obj")
+    set_source_files_properties(Importer/IFC/IFCReaderGen1_2x3.cpp Importer/IFC/IFCReaderGen2_2x3.cpp PROPERTIES COMPILE_FLAGS "-O2 -Wa,-mbig-obj")
  endif()
 endif (ASSIMP_BUILD_IFC_IMPORTER)
@ -522,6 +523,13 @@ ADD_ASSIMP_IMPORTER( FBX
  FBXDeformer.cpp
  FBXBinaryTokenizer.cpp
  FBXDocumentUtil.cpp
  FBXExporter.h
  FBXExporter.cpp
  FBXExportNode.h
  FBXExportNode.cpp
  FBXExportProperty.h
  FBXExportProperty.cpp
  FBXCommon.h
 )
 SET( PostProcessing_SRCS
@ -578,6 +586,8 @@ SET( PostProcessing_SRCS
  PolyTools.h
  MakeVerboseFormat.cpp
  MakeVerboseFormat.h
  ScaleProcess.cpp
  ScaleProcess.h
 )
 SOURCE_GROUP( PostProcessing FILES ${PostProcessing_SRCS})
@ -641,7 +651,7 @@ ADD_ASSIMP_IMPORTER( X
  XFileExporter.cpp
 )
-ADD_ASSIMP_IMPORTER(X3D
+ADD_ASSIMP_IMPORTER( X3D
  X3DExporter.cpp
  X3DExporter.hpp
  X3DImporter.cpp
--- a/code/COBLoader.cpp
+++ b/code/COBLoader.cpp
@ -47,11 +47,10 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #ifndef ASSIMP_BUILD_NO_COB_IMPORTER
 #include "COBLoader.h"
 #include "COBScene.h"
-
+#include "ConvertToLHProcess.h"
 #include <assimp/StreamReader.h>
 #include <assimp/ParsingUtils.h>
 #include <assimp/fast_atof.h>
 #include <assimp/LineSplitter.h>
 #include <assimp/TinyFormatter.h>
 #include <memory>
@ -105,7 +104,7 @@ COBImporter::~COBImporter()
 bool COBImporter::CanRead( const std::string& pFile, IOSystem* pIOHandler, bool checkSig) const
 {
    const std::string& extension = GetExtension(pFile);
-    if (extension == "cob" || extension == "scn") {
+    if (extension == "cob" || extension == "scn" || extension == "COB" || extension == "SCN") {
        return true;
    }
@ -225,6 +224,9 @@ void COBImporter::InternReadFile( const std::string& pFile,
    }
    pScene->mRootNode = BuildNodes(*root.get(),scene,pScene);
 	//flip normals after import
    FlipWindingOrderProcess flip;
    flip.Execute( pScene );
 }
 // ------------------------------------------------------------------------------------------------
@ -1299,3 +1301,4 @@ void COBImporter::ReadUnit_Binary(COB::Scene& out, StreamReaderLE& reader, const
 #endif
--- a/code/CSMLoader.cpp
+++ b/code/CSMLoader.cpp
@ -136,7 +136,7 @@ void CSMImporter::InternReadFile( const std::string& pFile,
    TextFileToBuffer(file.get(),mBuffer2);
    const char* buffer = &mBuffer2[0];
-    aiAnimation* anim = new aiAnimation();
+    std::unique_ptr<aiAnimation> anim(new aiAnimation());
    int first = 0, last = 0x00ffffff;
    // now process the file and look out for '$' sections
@ -294,8 +294,8 @@ void CSMImporter::InternReadFile( const std::string& pFile,
    // Store the one and only animation in the scene
    pScene->mAnimations    = new aiAnimation*[pScene->mNumAnimations=1];
    pScene->mAnimations[0] = anim;
    anim->mName.Set("$CSM_MasterAnim");
    pScene->mAnimations[0] = anim.release();
    // mark the scene as incomplete and run SkeletonMeshBuilder on it
    pScene->mFlags |= AI_SCENE_FLAGS_INCOMPLETE;
--- a/code/CalcTangentsProcess.cpp
+++ b/code/CalcTangentsProcess.cpp
@ -190,7 +190,7 @@ bool CalcTangentsProcess::ProcessMesh( aiMesh* pMesh, unsigned int meshIndex)
        float tx = meshTex[p2].x - meshTex[p0].x, ty = meshTex[p2].y - meshTex[p0].y;
        float dirCorrection = (tx * sy - ty * sx) < 0.0f ? -1.0f : 1.0f;
        // when t1, t2, t3 in same position in UV space, just use default UV direction.
-        if ( 0 == sx && 0 ==sy && 0 == tx && 0 == ty ) {
+        if (  sx * ty == sy * tx ) {
            sx = 0.0; sy = 1.0;
            tx = 1.0; ty = 0.0;
        }
--- a/code/ColladaExporter.cpp
+++ b/code/ColladaExporter.cpp
@ -1269,7 +1269,8 @@ void ColladaExporter::WriteAnimationLibrary(size_t pIndex)
 	mOutput << startstr << "<animation id=\"" + idstrEscaped + "\" name=\"" + animation_name_escaped + "\">" << endstr;
 	PushTag();
-	
+
    std::string node_idstr;
 	for (size_t a = 0; a < anim->mNumChannels; ++a) {
 		const aiNodeAnim * nodeAnim = anim->mChannels[a];
@ -1277,7 +1278,9 @@ void ColladaExporter::WriteAnimationLibrary(size_t pIndex)
 		if ( nodeAnim->mNumPositionKeys != nodeAnim->mNumScalingKeys ||  nodeAnim->mNumPositionKeys != nodeAnim->mNumRotationKeys ) continue;
 		{
-			const std::string node_idstr = nodeAnim->mNodeName.data + std::string("_matrix-input");
+            node_idstr.clear();
            node_idstr += nodeAnim->mNodeName.data;
            node_idstr += std::string( "_matrix-input" );
 			std::vector<ai_real> frames;
 			for( size_t i = 0; i < nodeAnim->mNumPositionKeys; ++i) {
@ -1289,12 +1292,14 @@ void ColladaExporter::WriteAnimationLibrary(size_t pIndex)
 		}
 		{
-			const std::string node_idstr = nodeAnim->mNodeName.data + std::string("_matrix-output");
+            node_idstr.clear();
            node_idstr += nodeAnim->mNodeName.data;
            node_idstr += std::string("_matrix-output");
 			std::vector<ai_real> keyframes;
 			keyframes.reserve(nodeAnim->mNumPositionKeys * 16);
 			for( size_t i = 0; i < nodeAnim->mNumPositionKeys; ++i) {
 				aiVector3D Scaling = nodeAnim->mScalingKeys[i].mValue;
 				aiMatrix4x4 ScalingM;  // identity
 				ScalingM[0][0] = Scaling.x; ScalingM[1][1] = Scaling.y; ScalingM[2][2] = Scaling.z;
@ -1361,7 +1366,6 @@ void ColladaExporter::WriteAnimationLibrary(size_t pIndex)
 			PopTag();
 			mOutput << startstr << "</source>" << endstr;
 		}
 	}
 	for (size_t a = 0; a < anim->mNumChannels; ++a) {
--- a/code/ColladaLoader.cpp
+++ b/code/ColladaLoader.cpp
@ -131,6 +131,7 @@ void ColladaLoader::SetupProperties(const Importer* pImp)
 {
    noSkeletonMesh = pImp->GetPropertyInteger(AI_CONFIG_IMPORT_NO_SKELETON_MESHES,0) != 0;
    ignoreUpDirection = pImp->GetPropertyInteger(AI_CONFIG_IMPORT_COLLADA_IGNORE_UP_DIRECTION,0) != 0;
    useColladaName = pImp->GetPropertyInteger(AI_CONFIG_IMPORT_COLLADA_USE_COLLADA_NAMES,0) != 0;
 }
 // ------------------------------------------------------------------------------------------------
@ -1120,6 +1121,7 @@ void ColladaLoader::CreateAnimation( aiScene* pScene, const ColladaParser& pPars
            continue;
        // now check all channels if they affect the current node
        std::string targetID, subElement;
        for( std::vector<Collada::AnimationChannel>::const_iterator cit = pSrcAnim->mChannels.begin();
            cit != pSrcAnim->mChannels.end(); ++cit)
        {
@ -1146,7 +1148,9 @@ void ColladaLoader::CreateAnimation( aiScene* pScene, const ColladaParser& pPars
            }
            if( srcChannel.mTarget.find( '/', slashPos+1) != std::string::npos)
                continue;
-            std::string targetID = srcChannel.mTarget.substr( 0, slashPos);
+
            targetID.clear();
            targetID = srcChannel.mTarget.substr( 0, slashPos);
            if( targetID != srcNode->mID)
                continue;
@ -1159,7 +1163,8 @@ void ColladaLoader::CreateAnimation( aiScene* pScene, const ColladaParser& pPars
                entry.mTransformId = srcChannel.mTarget.substr( slashPos+1, dotPos - slashPos - 1);
-                std::string subElement = srcChannel.mTarget.substr( dotPos+1);
+                subElement.clear();
                subElement = srcChannel.mTarget.substr( dotPos+1);
                if( subElement == "ANGLE")
                    entry.mSubElement = 3; // last number in an Axis-Angle-Transform is the angle
                else if( subElement == "X")
@ -1180,7 +1185,8 @@ void ColladaLoader::CreateAnimation( aiScene* pScene, const ColladaParser& pPars
            if (bracketPos != std::string::npos)
            {
                entry.mTransformId = srcChannel.mTarget.substr(slashPos + 1, bracketPos - slashPos - 1);
-                std::string subElement = srcChannel.mTarget.substr(bracketPos);
+                subElement.clear();
                subElement = srcChannel.mTarget.substr(bracketPos);
                if (subElement == "(0)(0)")
                    entry.mSubElement = 0;
@ -1214,7 +1220,6 @@ void ColladaLoader::CreateAnimation( aiScene* pScene, const ColladaParser& pPars
                    entry.mSubElement = 14;
                else if (subElement == "(3)(3)")
                    entry.mSubElement = 15;
            }
            // determine which transform step is affected by this channel
@ -1913,6 +1918,11 @@ const Collada::Node* ColladaLoader::FindNodeBySID( const Collada::Node* pNode, c
 // The name must be unique for proper node-bone association.
 std::string ColladaLoader::FindNameForNode( const Collada::Node* pNode)
 {
    // If explicitly requested, just use the collada name.
    if (useColladaName) {
        return pNode->mName;
    }
    // Now setup the name of the assimp node. The collada name might not be
    // unique, so we use the collada ID.
    if (!pNode->mID.empty())
--- a/code/ColladaLoader.h
+++ b/code/ColladaLoader.h
@ -248,6 +248,7 @@ protected:
    bool noSkeletonMesh;
    bool ignoreUpDirection;
    bool useColladaName;
    /** Used by FindNameForNode() to generate unique node names */
    unsigned int mNodeNameCounter;
--- a/code/ColladaParser.cpp
+++ b/code/ColladaParser.cpp
@ -222,6 +222,7 @@ void ColladaParser::ReadStructure()
    }
 	PostProcessRootAnimations();
    PostProcessControllers();
 }
 // ------------------------------------------------------------------------------------------------
@ -360,6 +361,21 @@ void ColladaParser::ReadAnimationClipLibrary()
 	}
 }
 void ColladaParser::PostProcessControllers()
 {
  for (ControllerLibrary::iterator it = mControllerLibrary.begin(); it != mControllerLibrary.end(); ++it)
  {
    std::string meshId = it->second.mMeshId;
    ControllerLibrary::iterator findItr = mControllerLibrary.find(meshId);
    while(findItr != mControllerLibrary.end()) {
      meshId = findItr->second.mMeshId;
      findItr = mControllerLibrary.find(meshId);
    }
    it->second.mMeshId = meshId;
  }
 }
 // ------------------------------------------------------------------------------------------------
 // Re-build animations from animation clip library, if present, otherwise combine single-channel animations
 void ColladaParser::PostProcessRootAnimations()
--- a/code/ColladaParser.h
+++ b/code/ColladaParser.h
@ -87,6 +87,9 @@ namespace Assimp
 		/** Reads the animation clip library */
 		void ReadAnimationClipLibrary();
        /** Unwrap controllers dependency hierarchy */
        void PostProcessControllers();
 		/** Re-build animations from animation clip library, if present, otherwise combine single-channel animations */
 		void PostProcessRootAnimations();
--- a/code/ConvertToLHProcess.cpp
+++ b/code/ConvertToLHProcess.cpp
@ -91,12 +91,14 @@ void MakeLeftHandedProcess::Execute( aiScene* pScene)
    ProcessNode( pScene->mRootNode, aiMatrix4x4());
    // process the meshes accordingly
-    for( unsigned int a = 0; a < pScene->mNumMeshes; ++a)
+    for ( unsigned int a = 0; a < pScene->mNumMeshes; ++a ) {
-        ProcessMesh( pScene->mMeshes[a]);
+        ProcessMesh( pScene->mMeshes[ a ] );
    }
    // process the materials accordingly
-    for( unsigned int a = 0; a < pScene->mNumMaterials; ++a)
+    for ( unsigned int a = 0; a < pScene->mNumMaterials; ++a ) {
-        ProcessMaterial( pScene->mMaterials[a]);
+        ProcessMaterial( pScene->mMaterials[ a ] );
    }
    // transform all animation channels as well
    for( unsigned int a = 0; a < pScene->mNumAnimations; a++)
@ -136,8 +138,11 @@ void MakeLeftHandedProcess::ProcessNode( aiNode* pNode, const aiMatrix4x4& pPare
 // ------------------------------------------------------------------------------------------------
 // Converts a single mesh to left handed coordinates.
-void MakeLeftHandedProcess::ProcessMesh( aiMesh* pMesh)
+void MakeLeftHandedProcess::ProcessMesh( aiMesh* pMesh) {
-{
+    if ( nullptr == pMesh ) {
        DefaultLogger::get()->error( "Nullptr to mesh found." );
        return;
    }
    // mirror positions, normals and stuff along the Z axis
    for( size_t a = 0; a < pMesh->mNumVertices; ++a)
    {
@ -173,8 +178,12 @@ void MakeLeftHandedProcess::ProcessMesh( aiMesh* pMesh)
 // ------------------------------------------------------------------------------------------------
 // Converts a single material to left handed coordinates.
-void MakeLeftHandedProcess::ProcessMaterial( aiMaterial* _mat)
+void MakeLeftHandedProcess::ProcessMaterial( aiMaterial* _mat) {
-{
+    if ( nullptr == _mat ) {
        DefaultLogger::get()->error( "Nullptr to aiMaterial found." );
        return;
    }
    aiMaterial* mat = (aiMaterial*)_mat;
    for (unsigned int a = 0; a < mat->mNumProperties;++a)   {
        aiMaterialProperty* prop = mat->mProperties[a];
@ -183,7 +192,6 @@ void MakeLeftHandedProcess::ProcessMaterial( aiMaterial* _mat)
        if (!::strcmp( prop->mKey.data, "$tex.mapaxis"))    {
            ai_assert( prop->mDataLength >= sizeof(aiVector3D)); /* something is wrong with the validation if we end up here */
            aiVector3D* pff = (aiVector3D*)prop->mData;
            pff->z *= -1.f;
        }
    }
--- a/code/D3MFExporter.cpp
+++ b/code/D3MFExporter.cpp
@ -49,8 +49,9 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include <assimp/IOStream.hpp>
 #include <assimp/Exporter.hpp>
 #include <assimp/DefaultLogger.hpp>
-
+#include <assimp/StringUtils.h>
 #include <assimp/Exceptional.h>
 #include "3MFXmlTags.h"
 #include "D3MFOpcPackage.h"
@ -116,6 +117,7 @@ bool D3MFExporter::exportArchive( const char *file ) {
    if ( nullptr == m_zipArchive ) {
        return false;
    }
    ok |= exportContentTypes();
    ok |= export3DModel();
    ok |= exportRelations();
@ -126,7 +128,6 @@ bool D3MFExporter::exportArchive( const char *file ) {
    return ok;
 }
 bool D3MFExporter::exportContentTypes() {
    mContentOutput.clear();
@ -153,7 +154,11 @@ bool D3MFExporter::exportRelations() {
    mRelOutput << "<Relationships xmlns=\"http://schemas.openxmlformats.org/package/2006/relationships\">";
    for ( size_t i = 0; i < mRelations.size(); ++i ) {
-        mRelOutput << "<Relationship Target=\"/" << mRelations[ i ]->target << "\" ";
+        if ( mRelations[ i ]->target[ 0 ] == '/' ) {
            mRelOutput << "<Relationship Target=\"" << mRelations[ i ]->target << "\" ";
        } else {
            mRelOutput << "<Relationship Target=\"/" << mRelations[ i ]->target << "\" ";
        }
        mRelOutput << "Id=\"" << mRelations[i]->id << "\" ";
        mRelOutput << "Type=\"" << mRelations[ i ]->type << "\" />";
        mRelOutput << std::endl;
@ -177,6 +182,10 @@ bool D3MFExporter::export3DModel() {
    mModelOutput << "<" << XmlTag::resources << ">";
    mModelOutput << std::endl;
    writeMetaData();
    writeBaseMaterials();
    writeObjects();
@ -203,6 +212,63 @@ void D3MFExporter::writeHeader() {
    mModelOutput << std::endl;
 }
 void D3MFExporter::writeMetaData() {
    if ( nullptr == mScene->mMetaData ) {
        return;
    }
    const unsigned int numMetaEntries( mScene->mMetaData->mNumProperties );
    if ( 0 == numMetaEntries ) {
        return;
    }
    const aiString *key;
    const aiMetadataEntry *entry(nullptr);
    for ( size_t i = 0; i < numMetaEntries; ++i ) {
        mScene->mMetaData->Get( i, key, entry );
        std::string k( key->C_Str() );
        aiString value;
        mScene->mMetaData->Get(  k, value );
        mModelOutput << "<" << XmlTag::meta << " " << XmlTag::meta_name << "=\"" << key->C_Str() << "\">";
        mModelOutput << value.C_Str();
        mModelOutput << "</" << XmlTag::meta << ">" << std::endl;
    }
 }
 void D3MFExporter::writeBaseMaterials() {
    mModelOutput << "<basematerials id=\"1\">\n";
    std::string strName, hexDiffuseColor , tmp;
    for ( size_t i = 0; i < mScene->mNumMaterials; ++i ) {
        aiMaterial *mat = mScene->mMaterials[ i ];
        aiString name;
        if ( mat->Get( AI_MATKEY_NAME, name ) != aiReturn_SUCCESS ) {
            strName = "basemat_" + to_string( i );
        } else {
            strName = name.C_Str();
        }
        aiColor4D color;
        if ( mat->Get( AI_MATKEY_COLOR_DIFFUSE, color ) == aiReturn_SUCCESS ) {
            hexDiffuseColor.clear();
            tmp.clear();
            hexDiffuseColor = "#";
            tmp = DecimalToHexa( color.r );
            hexDiffuseColor += tmp;
            tmp = DecimalToHexa( color.g );
            hexDiffuseColor += tmp;
            tmp = DecimalToHexa( color.b );
            hexDiffuseColor += tmp;
            tmp = DecimalToHexa( color.a );
            hexDiffuseColor += tmp;
        } else {
            hexDiffuseColor = "#FFFFFFFF";
        }
        mModelOutput << "<base name=\""+strName+"\" "+" displaycolor=\""+hexDiffuseColor+"\" />\n";
    }
    mModelOutput << "</basematerials>\n";
 }
 void D3MFExporter::writeObjects() {
    if ( nullptr == mScene->mRootNode ) {
        return;
@ -242,7 +308,9 @@ void D3MFExporter::writeMesh( aiMesh *mesh ) {
    }
    mModelOutput << "</" << XmlTag::vertices << ">" << std::endl;
-    writeFaces( mesh );
+    const unsigned int matIdx( mesh->mMaterialIndex );
    writeFaces( mesh, matIdx );
    mModelOutput << "</" << XmlTag::mesh << ">" << std::endl;
 }
@ -252,7 +320,7 @@ void D3MFExporter::writeVertex( const aiVector3D &pos ) {
    mModelOutput << std::endl;
 }
-void D3MFExporter::writeFaces( aiMesh *mesh ) {
+void D3MFExporter::writeFaces( aiMesh *mesh, unsigned int matIdx ) {
    if ( nullptr == mesh ) {
        return;
    }
@ -264,7 +332,8 @@ void D3MFExporter::writeFaces( aiMesh *mesh ) {
    for ( unsigned int i = 0; i < mesh->mNumFaces; ++i ) {
        aiFace &currentFace = mesh->mFaces[ i ];
        mModelOutput << "<" << XmlTag::triangle << " v1=\"" << currentFace.mIndices[ 0 ] << "\" v2=\""
-                << currentFace.mIndices[ 1 ] << "\" v3=\"" << currentFace.mIndices[ 2 ] << "\"/>";
+                << currentFace.mIndices[ 1 ] << "\" v3=\"" << currentFace.mIndices[ 2 ]
                << "\" pid=\"1\" p1=\""+to_string(matIdx)+"\" />";
        mModelOutput << std::endl;
    }
    mModelOutput << "</" << XmlTag::triangles << ">";
--- a/code/D3MFExporter.h
+++ b/code/D3MFExporter.h
@ -76,10 +76,12 @@ public:
 protected:
    void writeHeader();
    void writeMetaData();
    void writeBaseMaterials();
    void writeObjects();
    void writeMesh( aiMesh *mesh );
    void writeVertex( const aiVector3D &pos );
-    void writeFaces( aiMesh *mesh );
+    void writeFaces( aiMesh *mesh, unsigned int matIdx );
    void writeBuild();
    void exportContentTyp( const std::string &filename );
    void writeModelToArchive( const std::string &folder, const std::string &modelName );
--- a/code/D3MFImporter.cpp
+++ b/code/D3MFImporter.cpp
@ -61,14 +61,24 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include <unzip.h>
 #include <assimp/irrXMLWrapper.h>
 #include "3MFXmlTags.h"
 #include <assimp/fast_atof.h>
 #include <iomanip>
 namespace Assimp {
 namespace D3MF {
 class XmlSerializer {
 public:
    using MatArray = std::vector<aiMaterial*>;
    using MatId2MatArray = std::map<unsigned int, std::vector<unsigned int>>;
    XmlSerializer(XmlReader* xmlReader)
-    : xmlReader(xmlReader) {
+    : mMeshes()
    , mMatArray()
    , mActiveMatGroup( 99999999 )
    , mMatId2MatArray()
    , xmlReader(xmlReader){
 		// empty
    }
@ -77,14 +87,24 @@ public:
    }
    void ImportXml(aiScene* scene) {
        if ( nullptr == scene ) {
            return;
        }
        scene->mRootNode = new aiNode();
        std::vector<aiNode*> children;
        std::string nodeName;
        while(ReadToEndElement(D3MF::XmlTag::model)) {
-            if(xmlReader->getNodeName() == D3MF::XmlTag::object) {
+            nodeName = xmlReader->getNodeName();
            if( nodeName == D3MF::XmlTag::object) {
                children.push_back(ReadObject(scene));
-            } else if(xmlReader->getNodeName() == D3MF::XmlTag::build) {
+            } else if( nodeName == D3MF::XmlTag::build) {
-
+                // 
            } else if ( nodeName == D3MF::XmlTag::basematerials ) {
                ReadBaseMaterials();
            } else if ( nodeName == D3MF::XmlTag::meta ) {
                ReadMetadata();
            }
        }
@ -92,31 +112,47 @@ public:
            scene->mRootNode->mName.Set( "3MF" );
        }
-        scene->mNumMeshes = static_cast<unsigned int>(meshes.size());
+        // import the metadata
        if ( !mMetaData.empty() ) {
            const size_t numMeta( mMetaData.size() );
            scene->mMetaData = aiMetadata::Alloc( numMeta );
            for ( size_t i = 0; i < numMeta; ++i ) {
                aiString val( mMetaData[ i ].value );
                scene->mMetaData->Set( i, mMetaData[ i ].name, val );
            }
        }
        // import the meshes
        scene->mNumMeshes = static_cast<unsigned int>( mMeshes.size());
        scene->mMeshes = new aiMesh*[scene->mNumMeshes]();
        std::copy( mMeshes.begin(), mMeshes.end(), scene->mMeshes);
-        std::copy(meshes.begin(), meshes.end(), scene->mMeshes);
+        // import the materials
        scene->mNumMaterials = static_cast<unsigned int>( mMatArray.size() );
        if ( 0 != scene->mNumMaterials ) {
            scene->mMaterials = new aiMaterial*[ scene->mNumMaterials ];
            std::copy( mMatArray.begin(), mMatArray.end(), scene->mMaterials );
        }
        // create the scenegraph
        scene->mRootNode->mNumChildren = static_cast<unsigned int>(children.size());
        scene->mRootNode->mChildren = new aiNode*[scene->mRootNode->mNumChildren]();
        std::copy(children.begin(), children.end(), scene->mRootNode->mChildren);
    }
 private:
-    aiNode* ReadObject(aiScene* scene)
+    aiNode* ReadObject(aiScene* scene) {
    {
        std::unique_ptr<aiNode> node(new aiNode());
        std::vector<unsigned long> meshIds;
        const char *attrib( nullptr );
        std::string name, type;
-        attrib = xmlReader->getAttributeValue( D3MF::XmlTag::name.c_str() );
+        attrib = xmlReader->getAttributeValue( D3MF::XmlTag::id.c_str() );
        if ( nullptr != attrib ) {
            name = attrib;
        }
-        attrib = xmlReader->getAttributeValue( D3MF::XmlTag::name.c_str() );
+        attrib = xmlReader->getAttributeValue( D3MF::XmlTag::type.c_str() );
        if ( nullptr != attrib ) {
            type = attrib;
        }
@ -124,19 +160,16 @@ private:
        node->mParent = scene->mRootNode;
        node->mName.Set(name);
-        size_t meshIdx = meshes.size();
+        size_t meshIdx = mMeshes.size();
-        while(ReadToEndElement(D3MF::XmlTag::object))
+        while(ReadToEndElement(D3MF::XmlTag::object)) {
-        {
+            if(xmlReader->getNodeName() == D3MF::XmlTag::mesh) {
            if(xmlReader->getNodeName() == D3MF::XmlTag::mesh)
            {
                auto mesh = ReadMesh();
                mesh->mName.Set(name);
-                meshes.push_back(mesh);
+                mMeshes.push_back(mesh);
                meshIds.push_back(static_cast<unsigned long>(meshIdx));
-                meshIdx++;
+                ++meshIdx;
            }
        }
@ -147,19 +180,14 @@ private:
        std::copy(meshIds.begin(), meshIds.end(), node->mMeshes);
        return node.release();
    }
-    aiMesh* ReadMesh() {
+    aiMesh *ReadMesh() {
        aiMesh* mesh = new aiMesh();
-        while(ReadToEndElement(D3MF::XmlTag::mesh))
+        while(ReadToEndElement(D3MF::XmlTag::mesh)) {
-        {
+            if(xmlReader->getNodeName() == D3MF::XmlTag::vertices) {
            if(xmlReader->getNodeName() == D3MF::XmlTag::vertices)
            {
                ImportVertices(mesh);
-            }
+            } else if(xmlReader->getNodeName() == D3MF::XmlTag::triangles) {
            else if(xmlReader->getNodeName() == D3MF::XmlTag::triangles)
            {
                ImportTriangles(mesh);
            }
        }
@ -167,14 +195,25 @@ private:
        return mesh;
    }
-    void ImportVertices(aiMesh* mesh)
+    void ReadMetadata() {
-    {
+        const std::string name = xmlReader->getAttributeValue( D3MF::XmlTag::meta_name.c_str() );
-        std::vector<aiVector3D> vertices;
+        xmlReader->read();
        const std::string value = xmlReader->getNodeData();
-        while(ReadToEndElement(D3MF::XmlTag::vertices))
+        if ( name.empty() ) {
-        {
+            return;
-            if(xmlReader->getNodeName() == D3MF::XmlTag::vertex)
+        }
-            {
+
        MetaEntry entry;
        entry.name = name;
        entry.value = value;
        mMetaData.push_back( entry );
    }
    void ImportVertices(aiMesh* mesh) {
        std::vector<aiVector3D> vertices;
        while(ReadToEndElement(D3MF::XmlTag::vertices)) {
            if(xmlReader->getNodeName() == D3MF::XmlTag::vertex) {
                vertices.push_back(ReadVertex());
            }
        }
@ -182,11 +221,9 @@ private:
        mesh->mVertices = new aiVector3D[mesh->mNumVertices];
        std::copy(vertices.begin(), vertices.end(), mesh->mVertices);
    }
-    aiVector3D ReadVertex()
+    aiVector3D ReadVertex() {
    {
        aiVector3D vertex;
        vertex.x = ai_strtof(xmlReader->getAttributeValue(D3MF::XmlTag::x.c_str()), nullptr);
@ -196,16 +233,18 @@ private:
        return vertex;
    }
-    void ImportTriangles(aiMesh* mesh)
+    void ImportTriangles(aiMesh* mesh) {
    {
         std::vector<aiFace> faces;
-
+         while(ReadToEndElement(D3MF::XmlTag::triangles)) {
-         while(ReadToEndElement(D3MF::XmlTag::triangles))
+             const std::string nodeName( xmlReader->getNodeName() );
-         {
+             if(xmlReader->getNodeName() == D3MF::XmlTag::triangle) {
             if(xmlReader->getNodeName() == D3MF::XmlTag::triangle)
             {
                 faces.push_back(ReadTriangle());
                 const char *pidToken( xmlReader->getAttributeValue( D3MF::XmlTag::p1.c_str() ) );
                 if ( nullptr != pidToken ) {
                     int matIdx( std::atoi( pidToken ) );
                     mesh->mMaterialIndex = matIdx;
                 }
             }
         }
@ -216,8 +255,7 @@ private:
        std::copy(faces.begin(), faces.end(), mesh->mFaces);
    }
-    aiFace ReadTriangle()
+    aiFace ReadTriangle() {
    {
        aiFace face;
        face.mNumIndices = 3;
@ -229,45 +267,150 @@ private:
        return face;
    }
-private:
+    void ReadBaseMaterials() {
-    bool ReadToStartElement(const std::string& startTag)
+        std::vector<unsigned int> MatIdArray;
-    {
+        const char *baseMaterialId( xmlReader->getAttributeValue( D3MF::XmlTag::basematerials_id.c_str() ) );
-        while(xmlReader->read())
+        if ( nullptr != baseMaterialId ) {
-        {
+            unsigned int id = std::atoi( baseMaterialId );
-            if (xmlReader->getNodeType() == irr::io::EXN_ELEMENT && xmlReader->getNodeName() == startTag)
+            const size_t newMatIdx( mMatArray.size() );
-            {
+            if ( id != mActiveMatGroup ) {
-                return true;
+                mActiveMatGroup = id;
                MatId2MatArray::const_iterator it( mMatId2MatArray.find( id ) );
                if ( mMatId2MatArray.end() == it ) {
                    MatIdArray.clear();
                    mMatId2MatArray[ id ] = MatIdArray;
                } else {
                    MatIdArray = it->second;
                }
            }
-            else if (xmlReader->getNodeType() == irr::io::EXN_ELEMENT_END &&
+            MatIdArray.push_back( static_cast<unsigned int>( newMatIdx ) );
-                     xmlReader->getNodeName() == startTag)
+            mMatId2MatArray[ mActiveMatGroup ] = MatIdArray;
-            {
+        }
        while ( ReadToEndElement( D3MF::XmlTag::basematerials ) ) {
            mMatArray.push_back( readMaterialDef() );
        }
    }
    bool parseColor( const char *color, aiColor4D &diffuse ) {
        if ( nullptr == color ) {
            return false;
        }
        const size_t len( strlen( color ) );
        if ( 9 != len ) {
            return false;
        }
        const char *buf( color );
        if ( '#' != *buf ) {
            return false;
        }
        ++buf;
        char comp[ 3 ] = { 0,0,'\0' };
        comp[ 0 ] = *buf;
        ++buf;
        comp[ 1 ] = *buf;
        ++buf;
        diffuse.r = static_cast<ai_real>( strtol( comp, NULL, 16 ) );
        comp[ 0 ] = *buf;
        ++buf;
        comp[ 1 ] = *buf;
        ++buf;
        diffuse.g = static_cast< ai_real >( strtol( comp, NULL, 16 ) );
        comp[ 0 ] = *buf;
        ++buf;
        comp[ 1 ] = *buf;
        ++buf;
        diffuse.b = static_cast< ai_real >( strtol( comp, NULL, 16 ) );
        comp[ 0 ] = *buf;
        ++buf;
        comp[ 1 ] = *buf;
        ++buf;
        diffuse.a = static_cast< ai_real >( strtol( comp, NULL, 16 ) );
        return true;
    }
    void assignDiffuseColor( aiMaterial *mat ) {
        const char *color = xmlReader->getAttributeValue( D3MF::XmlTag::basematerials_displaycolor.c_str() );
        aiColor4D diffuse;
        if ( parseColor( color, diffuse ) ) {
            mat->AddProperty<aiColor4D>( &diffuse, 1, AI_MATKEY_COLOR_DIFFUSE );
        }
    }
    aiMaterial *readMaterialDef() {
        aiMaterial *mat( nullptr );
        const char *name( nullptr );
        const std::string nodeName( xmlReader->getNodeName() );
        if ( nodeName == D3MF::XmlTag::basematerials_base ) {
            name = xmlReader->getAttributeValue( D3MF::XmlTag::basematerials_name.c_str() );
            std::string stdMatName;
            aiString matName;
            std::string strId( to_string( mActiveMatGroup ) );
            stdMatName += "id";
            stdMatName += strId;
            stdMatName += "_";
            if ( nullptr != name ) {
                stdMatName += std::string( name );
            } else {
                stdMatName += "basemat";
            }
            matName.Set( stdMatName );
            mat = new aiMaterial;
            mat->AddProperty( &matName, AI_MATKEY_NAME );
            assignDiffuseColor( mat );
        }
        return mat;
    }
 private:
    bool ReadToStartElement(const std::string& startTag) {
        while(xmlReader->read()) {
            const std::string &nodeName( xmlReader->getNodeName() );
            if (xmlReader->getNodeType() == irr::io::EXN_ELEMENT && nodeName == startTag) {
                return true;
            } else if (xmlReader->getNodeType() == irr::io::EXN_ELEMENT_END && nodeName == startTag) {
                return false;
            }
        }
-        //DefaultLogger::get()->error("unexpected EOF, expected closing <" + closeTag + "> tag");
+
        return false;
    }
-    bool ReadToEndElement(const std::string& closeTag)
+    bool ReadToEndElement(const std::string& closeTag) {
-    {
+        while(xmlReader->read()) {
-        while(xmlReader->read())
+            const std::string &nodeName( xmlReader->getNodeName() );
        {
            if (xmlReader->getNodeType() == irr::io::EXN_ELEMENT) {
                return true;
-            }
+            } else if (xmlReader->getNodeType() == irr::io::EXN_ELEMENT_END && nodeName == closeTag) {
            else if (xmlReader->getNodeType() == irr::io::EXN_ELEMENT_END
                     && xmlReader->getNodeName() == closeTag)
            {
                return false;
            }
        }
        DefaultLogger::get()->error("unexpected EOF, expected closing <" + closeTag + "> tag");
        return false;
    }
 private:
-    std::vector<aiMesh*> meshes;
+    struct MetaEntry {
        std::string name;
        std::string value;
    };
    std::vector<MetaEntry> mMetaData;
    std::vector<aiMesh*> mMeshes;
    MatArray mMatArray;
    unsigned int mActiveMatGroup;
    MatId2MatArray mMatId2MatArray;
    XmlReader* xmlReader;
 };
@ -288,7 +431,6 @@ static const aiImporterDesc desc = {
    Extension.c_str()
 };
 D3MFImporter::D3MFImporter()
 : BaseImporter() {
    // empty
@ -298,14 +440,19 @@ D3MFImporter::~D3MFImporter() {
    // empty
 }
-bool D3MFImporter::CanRead(const std::string &pFile, IOSystem *pIOHandler, bool checkSig) const {
+bool D3MFImporter::CanRead(const std::string &filename, IOSystem *pIOHandler, bool checkSig) const {
-    const std::string extension = GetExtension(pFile);
+    const std::string extension( GetExtension( filename ) );
    if(extension == Extension ) {
        return true;
    } else if ( !extension.length() || checkSig ) {
-        if (nullptr == pIOHandler ) {
+        if ( nullptr == pIOHandler ) {
-            return true;
+            return false;
        }
        if ( !D3MF::D3MFOpcPackage::isZipArchive( pIOHandler, filename ) ) {
            return false;
        }
        D3MF::D3MFOpcPackage opcPackage( pIOHandler, filename );
        return opcPackage.validate();
    }
    return false;
@ -319,8 +466,8 @@ const aiImporterDesc *D3MFImporter::GetInfo() const {
    return &desc;
 }
-void D3MFImporter::InternReadFile(const std::string &pFile, aiScene *pScene, IOSystem *pIOHandler) {
+void D3MFImporter::InternReadFile( const std::string &filename, aiScene *pScene, IOSystem *pIOHandler ) {
-    D3MF::D3MFOpcPackage opcPackage(pIOHandler, pFile);
+    D3MF::D3MFOpcPackage opcPackage(pIOHandler, filename);
    std::unique_ptr<CIrrXML_IOStreamReader> xmlStream(new CIrrXML_IOStreamReader(opcPackage.RootStream()));
    std::unique_ptr<D3MF::XmlReader> xmlReader(irr::io::createIrrXMLReader(xmlStream.get()));
--- a/code/D3MFOpcPackage.cpp
+++ b/code/D3MFOpcPackage.cpp
@ -247,13 +247,13 @@ private:
 // ------------------------------------------------------------------------------------------------
 //  Constructor.
 D3MFZipArchive::D3MFZipArchive(IOSystem* pIOHandler, const std::string& rFile)
-: m_ZipFileHandle(NULL)
+: m_ZipFileHandle( nullptr )
 , m_ArchiveMap() {
    if (! rFile.empty()) {                
        zlib_filefunc_def mapping = IOSystem2Unzip::get(pIOHandler);            
        m_ZipFileHandle = unzOpen2(rFile.c_str(), &mapping);
-        if(m_ZipFileHandle != NULL) {            
+        if(m_ZipFileHandle != nullptr ) {
            mapArchive();
        }
    }
@ -267,32 +267,32 @@ D3MFZipArchive::~D3MFZipArchive() {
    }
    m_ArchiveMap.clear();
-    if(m_ZipFileHandle != NULL) {
+    if(m_ZipFileHandle != nullptr) {
        unzClose(m_ZipFileHandle);
-        m_ZipFileHandle = NULL;
+        m_ZipFileHandle = nullptr;
    }
 }
 // ------------------------------------------------------------------------------------------------
 //  Returns true, if the archive is already open.
 bool D3MFZipArchive::isOpen() const {
-    return (m_ZipFileHandle != NULL);
+    return (m_ZipFileHandle != nullptr );
 }
 // ------------------------------------------------------------------------------------------------
 //  Returns true, if the filename is part of the archive.
 bool D3MFZipArchive::Exists(const char* pFile) const {
-    ai_assert(pFile != NULL);
+    ai_assert(pFile != nullptr );
-    bool exist = false;
+    if ( pFile == nullptr ) {
        return false;
    }
-    if (pFile != NULL) {
+    std::string filename(pFile);
-        std::string rFile(pFile);
+    std::map<std::string, ZipFile*>::const_iterator it = m_ArchiveMap.find(filename);
-        std::map<std::string, ZipFile*>::const_iterator it = m_ArchiveMap.find(rFile);
+    bool exist( false );
-
+    if(it != m_ArchiveMap.end()) {
-        if(it != m_ArchiveMap.end()) {
+        exist = true;
            exist = true;
        }
    }
    return exist;
@ -434,8 +434,8 @@ public:
    std::vector<OpcPackageRelationshipPtr> m_relationShips;
 };
 // ------------------------------------------------------------------------------------------------
 // ------------------------------------------------------------------------------------------------
 D3MFOpcPackage::D3MFOpcPackage(IOSystem* pIOHandler, const std::string& rFile)
 : mRootStream(nullptr)
 , mZipArchive() {    
@ -460,7 +460,7 @@ D3MFOpcPackage::D3MFOpcPackage(IOSystem* pIOHandler, const std::string& rFile)
            if ( rootFile.size() > 0 && rootFile[ 0 ] == '/' ) {
                rootFile = rootFile.substr( 1 );
                if ( rootFile[ 0 ] == '/' ) {
-                    // deal with zipbug
+                    // deal with zip-bug
                    rootFile = rootFile.substr( 1 );
                }
            }
@ -470,18 +470,9 @@ D3MFOpcPackage::D3MFOpcPackage(IOSystem* pIOHandler, const std::string& rFile)
            mRootStream = mZipArchive->Open(rootFile.c_str());
            ai_assert( mRootStream != nullptr );
            if ( nullptr == mRootStream ) {
-                throw DeadlyExportError( "Cannot open rootfile in archive : " + rootFile );
+                throw DeadlyExportError( "Cannot open root-file in archive : " + rootFile );
            }
        //    const size_t size = zipArchive->FileSize();
        //    m_Data.resize( size );
        //    const size_t readSize = pMapFile->Read( &m_Data[0], sizeof( char ), size );
        //    if ( readSize != size )
        //    {
        //        m_Data.clear();
        //        return false;
        //    }
            mZipArchive->Close( fileStream );
        } else if( file == D3MF::XmlTag::CONTENT_TYPES_ARCHIVE) {
@ -498,6 +489,25 @@ IOStream* D3MFOpcPackage::RootStream() const {
    return mRootStream;
 }
 static const std::string ModelRef = "3D/3dmodel.model";
 bool D3MFOpcPackage::validate() {
    if ( nullptr == mRootStream || nullptr == mZipArchive ) {
        return false;
    }
    return mZipArchive->Exists( ModelRef.c_str() );
 }
 bool D3MFOpcPackage::isZipArchive( IOSystem* pIOHandler, const std::string& rFile ) {
    D3MF::D3MFZipArchive ar( pIOHandler, rFile );
    if ( !ar.isOpen() ) {
        return false;
    }
    return true;
 }
 std::string D3MFOpcPackage::ReadPackageRootRelationship(IOStream* stream) {
    std::unique_ptr<CIrrXML_IOStreamReader> xmlStream(new CIrrXML_IOStreamReader(stream));
    std::unique_ptr<XmlReader> xml(irr::io::createIrrXMLReader(xmlStream.get()));
@ -508,14 +518,14 @@ std::string D3MFOpcPackage::ReadPackageRootRelationship(IOStream* stream) {
        return rel->type == XmlTag::PACKAGE_START_PART_RELATIONSHIP_TYPE;
    });
-    if(itr == reader.m_relationShips.end())
+    if ( itr == reader.m_relationShips.end() ) {
-        throw DeadlyImportError("Cannot find " + XmlTag::PACKAGE_START_PART_RELATIONSHIP_TYPE);
+        throw DeadlyImportError( "Cannot find " + XmlTag::PACKAGE_START_PART_RELATIONSHIP_TYPE );
    }
    return (*itr)->target;
 }
 } // Namespace D3MF
 } // Namespace Assimp
 #endif //ASSIMP_BUILD_NO_3MF_IMPORTER
--- a/code/D3MFOpcPackage.h
+++ b/code/D3MFOpcPackage.h
@ -51,8 +51,8 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 namespace Assimp {
 namespace D3MF {
-typedef irr::io::IrrXMLReader XmlReader;
+using XmlReader = irr::io::IrrXMLReader ;
-typedef std::shared_ptr<XmlReader> XmlReaderPtr;
+using XmlReaderPtr = std::shared_ptr<XmlReader> ;
 struct OpcPackageRelationship {
    std::string id;
@ -64,9 +64,11 @@ class D3MFZipArchive;
 class D3MFOpcPackage {
 public:
-    D3MFOpcPackage(IOSystem* pIOHandler, const std::string& rFile);
+    D3MFOpcPackage( IOSystem* pIOHandler, const std::string& rFile );
    ~D3MFOpcPackage();
    IOStream* RootStream() const;
    bool validate();
    static bool isZipArchive( IOSystem* pIOHandler, const std::string& rFile );
 protected:
    std::string ReadPackageRootRelationship(IOStream* stream);
@ -76,7 +78,7 @@ private:
    std::unique_ptr<D3MFZipArchive> mZipArchive;
 };
-}
+} // Namespace D3MF
-}
+} // Namespace Assimp
 #endif // D3MFOPCPACKAGE_H
--- a/code/DXFHelper.h
+++ b/code/DXFHelper.h
@ -169,7 +169,6 @@ public:
    }
 private:
    LineSplitter splitter;
    int groupcode;
    std::string value;
--- a/code/DefaultIOSystem.cpp
+++ b/code/DefaultIOSystem.cpp
@ -76,7 +76,7 @@ bool DefaultIOSystem::Exists( const char* pFile) const
 #ifdef _WIN32
    wchar_t fileName16[PATHLIMIT];
-    bool isUnicode = IsTextUnicode(pFile, strlen(pFile), NULL);
+    bool isUnicode = IsTextUnicode(pFile, static_cast<int>(strlen(pFile)), NULL);
    if (isUnicode) {
        MultiByteToWideChar(CP_UTF8, MB_PRECOMPOSED, pFile, -1, fileName16, PATHLIMIT);
@ -110,7 +110,7 @@ IOStream* DefaultIOSystem::Open( const char* strFile, const char* strMode)
    FILE* file;
 #ifdef _WIN32
    wchar_t fileName16[PATHLIMIT];
-    bool isUnicode = IsTextUnicode(strFile, strlen(strFile), NULL );
+    bool isUnicode = IsTextUnicode(strFile, static_cast<int>(strlen(strFile)), NULL );
    if (isUnicode) {
        MultiByteToWideChar(CP_UTF8, MB_PRECOMPOSED, strFile, -1, fileName16, PATHLIMIT);
        std::string mode8(strMode);
@ -158,7 +158,7 @@ inline static void MakeAbsolutePath (const char* in, char* _out)
 {
    ai_assert(in && _out);
 #if defined( _MSC_VER ) || defined( __MINGW32__ )
-    bool isUnicode = IsTextUnicode(in, strlen(in), NULL);
+    bool isUnicode = IsTextUnicode(in, static_cast<int>(strlen(in)), NULL);
    if (isUnicode) {
        wchar_t out16[PATHLIMIT];
        wchar_t in16[PATHLIMIT];
--- a/code/DefaultLogger.cpp
+++ b/code/DefaultLogger.cpp
@ -45,7 +45,6 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *  @brief Implementation of DefaultLogger (and Logger)
 */
 // Default log streams
 #include "Win32DebugLogStream.h"
 #include "StdOStreamLogStream.h"
@ -62,8 +61,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #ifndef ASSIMP_BUILD_SINGLETHREADED
 #   include <thread>
 #   include <mutex>
-
+    std::mutex loggerMutex;
 std::mutex loggerMutex;
 #endif
 namespace Assimp    {
@ -76,22 +74,19 @@ static const unsigned int SeverityAll = Logger::Info | Logger::Err | Logger::War
 // ----------------------------------------------------------------------------------
 // Represents a log-stream + its error severity
-struct LogStreamInfo
+struct LogStreamInfo {
-{
+    unsigned int  m_uiErrorSeverity;
-    unsigned int m_uiErrorSeverity;
+    LogStream    *m_pStream;
    LogStream *m_pStream;
    // Constructor
    LogStreamInfo( unsigned int uiErrorSev, LogStream *pStream ) :
        m_uiErrorSeverity( uiErrorSev ),
-        m_pStream( pStream )
+        m_pStream( pStream ) {
    {
        // empty
    }
    // Destructor
-    ~LogStreamInfo()
+    ~LogStreamInfo() {
    {
        delete m_pStream;
    }
 };
@ -109,7 +104,7 @@ LogStream* LogStream::createDefaultStream(aiDefaultLogStream    streams,
 #ifdef WIN32
        return new Win32DebugLogStream();
 #else
-        return NULL;
+        return nullptr;
 #endif
        // Platform-independent default streams
@ -118,7 +113,7 @@ LogStream* LogStream::createDefaultStream(aiDefaultLogStream    streams,
    case aiDefaultLogStream_STDOUT:
        return new StdOStreamLogStream(std::cout);
    case aiDefaultLogStream_FILE:
-        return (name && *name ? new FileLogStream(name,io) : NULL);
+        return (name && *name ? new FileLogStream(name,io) : nullptr );
    default:
        // We don't know this default log stream, so raise an assertion
        ai_assert(false);
@ -134,34 +129,38 @@ LogStream* LogStream::createDefaultStream(aiDefaultLogStream    streams,
 Logger *DefaultLogger::create(const char* name /*= "AssimpLog.txt"*/,
    LogSeverity severity                       /*= NORMAL*/,
    unsigned int defStreams                    /*= aiDefaultLogStream_DEBUGGER | aiDefaultLogStream_FILE*/,
-    IOSystem* io                               /*= NULL*/)
+    IOSystem* io                               /*= NULL*/) {
 {
    // enter the mutex here to avoid concurrency problems
 #ifndef ASSIMP_BUILD_SINGLETHREADED
    std::lock_guard<std::mutex> lock(loggerMutex);
 #endif
-    if (m_pLogger && !isNullLogger() )
+    if ( m_pLogger && !isNullLogger() ) {
        delete m_pLogger;
    }
    m_pLogger = new DefaultLogger( severity );
    // Attach default log streams
    // Stream the log to the MSVC debugger?
-    if (defStreams & aiDefaultLogStream_DEBUGGER)
+    if ( defStreams & aiDefaultLogStream_DEBUGGER ) {
-        m_pLogger->attachStream( LogStream::createDefaultStream(aiDefaultLogStream_DEBUGGER));
+        m_pLogger->attachStream( LogStream::createDefaultStream( aiDefaultLogStream_DEBUGGER ) );
    }
    // Stream the log to COUT?
-    if (defStreams & aiDefaultLogStream_STDOUT)
+    if ( defStreams & aiDefaultLogStream_STDOUT ) {
-        m_pLogger->attachStream( LogStream::createDefaultStream(aiDefaultLogStream_STDOUT));
+        m_pLogger->attachStream( LogStream::createDefaultStream( aiDefaultLogStream_STDOUT ) );
    }
    // Stream the log to CERR?
-    if (defStreams & aiDefaultLogStream_STDERR)
+    if ( defStreams & aiDefaultLogStream_STDERR ) {
-         m_pLogger->attachStream( LogStream::createDefaultStream(aiDefaultLogStream_STDERR));
+        m_pLogger->attachStream( LogStream::createDefaultStream( aiDefaultLogStream_STDERR ) );
    }
    // Stream the log to a file
-    if (defStreams & aiDefaultLogStream_FILE && name && *name)
+    if ( defStreams & aiDefaultLogStream_FILE && name && *name ) {
-        m_pLogger->attachStream( LogStream::createDefaultStream(aiDefaultLogStream_FILE,name,io));
+        m_pLogger->attachStream( LogStream::createDefaultStream( aiDefaultLogStream_FILE, name, io ) );
    }
    return m_pLogger;
 }
@ -200,7 +199,6 @@ void Logger::warn(const char* message)  {
 // ----------------------------------------------------------------------------------
 void Logger::error(const char* message) {
    // SECURITY FIX: see above
    if (strlen(message)>MAX_LOG_MESSAGE_LENGTH) {
        return;
@ -209,23 +207,24 @@ void Logger::error(const char* message) {
 }
 // ----------------------------------------------------------------------------------
-void DefaultLogger::set( Logger *logger )
+void DefaultLogger::set( Logger *logger ) {
 {
    // enter the mutex here to avoid concurrency problems
 #ifndef ASSIMP_BUILD_SINGLETHREADED
    std::lock_guard<std::mutex> lock(loggerMutex);
 #endif
-    if (!logger)logger = &s_pNullLogger;
+    if ( nullptr == logger ) {
-    if (m_pLogger && !isNullLogger() )
+        logger = &s_pNullLogger;
    }
    if ( nullptr != m_pLogger && !isNullLogger() ) {
        delete m_pLogger;
    }
    DefaultLogger::m_pLogger = logger;
 }
 // ----------------------------------------------------------------------------------
-bool DefaultLogger::isNullLogger()
+bool DefaultLogger::isNullLogger() {
 {
    return m_pLogger == &s_pNullLogger;
 }
@ -236,8 +235,7 @@ Logger *DefaultLogger::get() {
 // ----------------------------------------------------------------------------------
 //  Kills the only instance
-void DefaultLogger::kill()
+void DefaultLogger::kill() {
 {
    // enter the mutex here to avoid concurrency problems
 #ifndef ASSIMP_BUILD_SINGLETHREADED
    std::lock_guard<std::mutex> lock(loggerMutex);
@ -252,10 +250,10 @@ void DefaultLogger::kill()
 // ----------------------------------------------------------------------------------
 //  Debug message
-void DefaultLogger::OnDebug( const char* message )
+void DefaultLogger::OnDebug( const char* message ) {
-{
+    if ( m_Severity == Logger::NORMAL ) {
-	if ( m_Severity == Logger::NORMAL )
+        return;
-		return;
+    }
 	static const size_t Size = MAX_LOG_MESSAGE_LENGTH + 16;
 	char msg[Size];
@ -266,8 +264,7 @@ void DefaultLogger::OnDebug( const char* message )
 // ----------------------------------------------------------------------------------
 //  Logs an info
-void DefaultLogger::OnInfo( const char* message )
+void DefaultLogger::OnInfo( const char* message ){
 {
 	static const size_t Size = MAX_LOG_MESSAGE_LENGTH + 16;
 	char msg[Size];
    ai_snprintf(msg, Size, "Info,  T%u: %s", GetThreadID(), message );
@ -277,8 +274,7 @@ void DefaultLogger::OnInfo( const char* message )
 // ----------------------------------------------------------------------------------
 //  Logs a warning
-void DefaultLogger::OnWarn( const char* message )
+void DefaultLogger::OnWarn( const char* message ) {
 {
 	static const size_t Size = MAX_LOG_MESSAGE_LENGTH + 16;
 	char msg[Size];
 	ai_snprintf(msg, Size, "Warn,  T%u: %s", GetThreadID(), message );
@ -288,8 +284,7 @@ void DefaultLogger::OnWarn( const char* message )
 // ----------------------------------------------------------------------------------
 //  Logs an error
-void DefaultLogger::OnError( const char* message )
+void DefaultLogger::OnError( const char* message ) {
 {
 	static const size_t Size = MAX_LOG_MESSAGE_LENGTH + 16;
 	char msg[ Size ];
    ai_snprintf(msg, Size, "Error, T%u: %s", GetThreadID(), message );
@ -299,10 +294,10 @@ void DefaultLogger::OnError( const char* message )
 // ----------------------------------------------------------------------------------
 //  Will attach a new stream
-bool DefaultLogger::attachStream( LogStream *pStream, unsigned int severity )
+bool DefaultLogger::attachStream( LogStream *pStream, unsigned int severity ) {
-{
+    if ( nullptr == pStream ) {
    if (!pStream)
        return false;
    }
    if (0 == severity)  {
        severity = Logger::Info | Logger::Err | Logger::Warn | Logger::Debugging;
@ -312,8 +307,7 @@ bool DefaultLogger::attachStream( LogStream *pStream, unsigned int severity )
        it != m_StreamArray.end();
        ++it )
    {
-        if ( (*it)->m_pStream == pStream )
+        if ( (*it)->m_pStream == pStream ) {
        {
            (*it)->m_uiErrorSeverity |= severity;
            return true;
        }
@ -326,34 +320,31 @@ bool DefaultLogger::attachStream( LogStream *pStream, unsigned int severity )
 // ----------------------------------------------------------------------------------
 //  Detach a stream
-bool DefaultLogger::detatchStream( LogStream *pStream, unsigned int severity )
+bool DefaultLogger::detatchStream( LogStream *pStream, unsigned int severity ) {
-{
+    if ( nullptr == pStream ) {
    if (!pStream)
        return false;
    }
    if (0 == severity)  {
        severity = SeverityAll;
    }
-    for ( StreamIt it = m_StreamArray.begin();
+    bool res( false );
-        it != m_StreamArray.end();
+    for ( StreamIt it = m_StreamArray.begin(); it != m_StreamArray.end(); ++it ) {
-        ++it )
+        if ( (*it)->m_pStream == pStream ) {
    {
        if ( (*it)->m_pStream == pStream )
        {
            (*it)->m_uiErrorSeverity &= ~severity;
-            if ( (*it)->m_uiErrorSeverity == 0 )
+            if ( (*it)->m_uiErrorSeverity == 0 ) {
            {
                // don't delete the underlying stream 'cause the caller gains ownership again
-                (**it).m_pStream = NULL;
+                (**it).m_pStream = nullptr;
                delete *it;
                m_StreamArray.erase( it );
                res = true;
                break;
            }
            return true;
        }
    }
-    return false;
+    return res;
 }
 // ----------------------------------------------------------------------------------
@ -361,15 +352,13 @@ bool DefaultLogger::detatchStream( LogStream *pStream, unsigned int severity )
 DefaultLogger::DefaultLogger(LogSeverity severity)
    :   Logger  ( severity )
    ,   noRepeatMsg (false)
-    ,   lastLen( 0 )
+    ,   lastLen( 0 ) {
 {
    lastMsg[0] = '\0';
 }
 // ----------------------------------------------------------------------------------
 //  Destructor
-DefaultLogger::~DefaultLogger()
+DefaultLogger::~DefaultLogger() {
 {
    for ( StreamIt it = m_StreamArray.begin(); it != m_StreamArray.end(); ++it ) {
        // also frees the underlying stream, we are its owner.
        delete *it;
@ -378,9 +367,8 @@ DefaultLogger::~DefaultLogger()
 // ----------------------------------------------------------------------------------
 //  Writes message to stream
-void DefaultLogger::WriteToStreams(const char *message, ErrorSeverity ErrorSev )
+void DefaultLogger::WriteToStreams(const char *message, ErrorSeverity ErrorSev ) {
-{
+    ai_assert(nullptr != message);
    ai_assert(NULL != message);
    // Check whether this is a repeated message
    if (! ::strncmp( message,lastMsg, lastLen-1))
--- a/code/EmbedTexturesProcess.cpp
+++ b/code/EmbedTexturesProcess.cpp
@ -99,22 +99,22 @@ void EmbedTexturesProcess::Execute(aiScene* pScene) {
 }
 bool EmbedTexturesProcess::addTexture(aiScene* pScene, std::string path) const {
-    uint32_t imageSize = 0;
+    std::streampos imageSize = 0;
-    std::string imagePath = path;
+    std::string    imagePath = path;
    // Test path directly
    std::ifstream file(imagePath, std::ios::binary | std::ios::ate);
-    if ((imageSize = file.tellg()) == -1u) {
+    if ((imageSize = file.tellg()) == std::streampos(-1)) {
        DefaultLogger::get()->warn("EmbedTexturesProcess: Cannot find image: " + imagePath + ". Will try to find it in root folder.");
        // Test path in root path
        imagePath = mRootPath + path;
        file.open(imagePath, std::ios::binary | std::ios::ate);
-        if ((imageSize = file.tellg()) == -1u) {
+        if ((imageSize = file.tellg()) == std::streampos(-1)) {
            // Test path basename in root path
            imagePath = mRootPath + path.substr(path.find_last_of("\\/") + 1u);
            file.open(imagePath, std::ios::binary | std::ios::ate);
-            if ((imageSize = file.tellg()) == -1u) {
+            if ((imageSize = file.tellg()) == std::streampos(-1)) {
                DefaultLogger::get()->error("EmbedTexturesProcess: Unable to embed texture: " + path + ".");
                return false;
            }
@ -134,7 +134,7 @@ bool EmbedTexturesProcess::addTexture(aiScene* pScene, std::string path) const {
    // Add the new texture
    auto pTexture = new aiTexture();
    pTexture->mHeight = 0; // Means that this is still compressed
-    pTexture->mWidth = imageSize;
+    pTexture->mWidth = static_cast<uint32_t>(imageSize);
    pTexture->pcData = imageContent;
    auto extension = path.substr(path.find_last_of('.') + 1u);
--- a/code/Exporter.cpp
+++ b/code/Exporter.cpp
@ -97,6 +97,8 @@ void ExportSceneGLB2(const char*, IOSystem*, const aiScene*, const ExportPropert
 void ExportSceneAssbin(const char*, IOSystem*, const aiScene*, const ExportProperties*);
 void ExportSceneAssxml(const char*, IOSystem*, const aiScene*, const ExportProperties*);
 void ExportSceneX3D(const char*, IOSystem*, const aiScene*, const ExportProperties*);
 void ExportSceneFBX(const char*, IOSystem*, const aiScene*, const ExportProperties*);
 void ExportSceneFBXA(const char*, IOSystem*, const aiScene*, const ExportProperties*);
 void ExportScene3MF( const char*, IOSystem*, const aiScene*, const ExportProperties* );
 // ------------------------------------------------------------------------------------------------
@ -169,6 +171,11 @@ Exporter::ExportFormatEntry gExporters[] =
    Exporter::ExportFormatEntry( "x3d", "Extensible 3D", "x3d" , &ExportSceneX3D, 0 ),
 #endif
 #ifndef ASSIMP_BUILD_NO_FBX_EXPORTER
    Exporter::ExportFormatEntry( "fbx", "Autodesk FBX (binary)", "fbx", &ExportSceneFBX, 0 ),
    Exporter::ExportFormatEntry( "fbxa", "Autodesk FBX (ascii)", "fbx", &ExportSceneFBXA, 0 ),
 #endif
 #ifndef ASSIMP_BUILD_NO_3MF_EXPORTER
    Exporter::ExportFormatEntry( "3mf", "The 3MF-File-Format", "3mf", &ExportScene3MF, 0 )
 #endif
@ -301,7 +308,8 @@ bool IsVerboseFormat(const aiScene* pScene) {
 }
 // ------------------------------------------------------------------------------------------------
-aiReturn Exporter::Export( const aiScene* pScene, const char* pFormatId, const char* pPath, unsigned int pPreprocessing, const ExportProperties* pProperties) {
+aiReturn Exporter::Export( const aiScene* pScene, const char* pFormatId, const char* pPath,
        unsigned int pPreprocessing, const ExportProperties* pProperties) {
    ASSIMP_BEGIN_EXCEPTION_REGION();
    // when they create scenes from scratch, users will likely create them not in verbose
--- a/code/FBXCommon.h
+++ b/code/FBXCommon.h
@ -0,0 +1,86 @@
 /*
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 Copyright (c) 2006-2018, assimp team
 All rights reserved.
 Redistribution and use of this software in source and binary forms,
 with or without modification, are permitted provided that the
 following conditions are met:
 * Redistributions of source code must retain the above
 copyright notice, this list of conditions and the
 following disclaimer.
 * Redistributions in binary form must reproduce the above
 copyright notice, this list of conditions and the
 following disclaimer in the documentation and/or other
 materials provided with the distribution.
 * Neither the name of the assimp team, nor the names of its
 contributors may be used to endorse or promote products
 derived from this software without specific prior
 written permission of the assimp team.
 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ----------------------------------------------------------------------
 */
 /** @file FBXCommon.h
 * Some useful constants and enums for dealing with FBX files.
 */
 #ifndef AI_FBXCOMMON_H_INC
 #define AI_FBXCOMMON_H_INC
 #ifndef ASSIMP_BUILD_NO_FBX_EXPORTER
 namespace FBX
 {
    const std::string NULL_RECORD = { // 13 null bytes
        '\0','\0','\0','\0','\0','\0','\0','\0','\0','\0','\0','\0','\0'
    }; // who knows why
    const std::string SEPARATOR = {'\x00', '\x01'}; // for use inside strings
    const std::string MAGIC_NODE_TAG = "_$AssimpFbx$"; // from import
    const int64_t SECOND = 46186158000; // FBX's kTime unit
    // rotation order. We'll probably use EulerXYZ for everything
    enum RotOrder {
        RotOrder_EulerXYZ = 0,
        RotOrder_EulerXZY,
        RotOrder_EulerYZX,
        RotOrder_EulerYXZ,
        RotOrder_EulerZXY,
        RotOrder_EulerZYX,
        RotOrder_SphericXYZ,
        RotOrder_MAX // end-of-enum sentinel
    };
    // transformation inheritance method. Most of the time RSrs
    enum TransformInheritance {
        TransformInheritance_RrSs = 0,
        TransformInheritance_RSrs,
        TransformInheritance_Rrs,
        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
@ -61,6 +61,8 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include <memory>
 #include <iterator>
 #include <vector>
 #include <sstream>
 #include <iomanip>
 namespace Assimp {
 namespace FBX {
@ -133,15 +135,14 @@ void Converter::ConvertRootNode() {
    ConvertNodes( 0L, *out->mRootNode );
 }
-
+void Converter::ConvertNodes( uint64_t id, aiNode& parent, const aiMatrix4x4& parent_transform ) {
 void Converter::ConvertNodes( uint64_t id, aiNode& parent, const aiMatrix4x4& parent_transform )
 {
    const std::vector<const Connection*>& conns = doc.GetConnectionsByDestinationSequenced( id, "Model" );
    std::vector<aiNode*> nodes;
    nodes.reserve( conns.size() );
    std::vector<aiNode*> nodes_chain;
    std::vector<aiNode*> post_nodes_chain;
    try {
        for( const Connection* con : conns ) {
@ -152,15 +153,16 @@ void Converter::ConvertNodes( uint64_t id, aiNode& parent, const aiMatrix4x4& pa
            }
            const Object* const object = con->SourceObject();
-            if ( !object ) {
+            if ( nullptr == object ) {
                FBXImporter::LogWarn( "failed to convert source object for Model link" );
                continue;
            }
            const Model* const model = dynamic_cast<const Model*>( object );
-            if ( model ) {
+            if ( nullptr != model ) {
                nodes_chain.clear();
                post_nodes_chain.clear();
                aiMatrix4x4 new_abs_transform = parent_transform;
@ -168,11 +170,11 @@ void Converter::ConvertNodes( uint64_t id, aiNode& parent, const aiMatrix4x4& pa
                // assimp (or rather: the complicated transformation chain that
                // is employed by fbx) means that we may need multiple aiNode's
                // to represent a fbx node's transformation.
-                GenerateTransformationNodeChain( *model, nodes_chain );
+                GenerateTransformationNodeChain( *model, nodes_chain, post_nodes_chain );
                ai_assert( nodes_chain.size() );
-                const std::string& original_name = FixNodeName( model->Name() );
+                std::string original_name = FixNodeName( model->Name() );
                // check if any of the nodes in the chain has the name the fbx node
                // is supposed to have. If there is none, add another node to
@ -187,7 +189,15 @@ void Converter::ConvertNodes( uint64_t id, aiNode& parent, const aiMatrix4x4& pa
                }
                if ( !name_carrier ) {
                    NodeNameCache::const_iterator it( std::find( mNodeNames.begin(), mNodeNames.end(), original_name ) );
                    if ( it != mNodeNames.end() ) {
                        original_name = original_name + std::string( "001" );
                    }
                    mNodeNames.push_back( original_name );
                    nodes_chain.push_back( new aiNode( original_name ) );
                } else {
                    original_name = nodes_chain.back()->mName.C_Str();
                }
                //setup metadata on newest node
@ -213,15 +223,46 @@ void Converter::ConvertNodes( uint64_t id, aiNode& parent, const aiMatrix4x4& pa
                // attach geometry
                ConvertModel( *model, *nodes_chain.back(), new_abs_transform );
-                // attach sub-nodes
+                // check if there will be any child nodes
-                ConvertNodes( model->ID(), *nodes_chain.back(), new_abs_transform );
+                const std::vector<const Connection*>& child_conns
                    = doc.GetConnectionsByDestinationSequenced( model->ID(), "Model" );
                // if so, link the geometric transform inverse nodes
                // before we attach any child nodes
                if (child_conns.size()) {
                    for( aiNode* postnode : post_nodes_chain ) {
                        ai_assert( postnode );
                        if ( last_parent != &parent ) {
                            last_parent->mNumChildren = 1;
                            last_parent->mChildren = new aiNode*[ 1 ];
                            last_parent->mChildren[ 0 ] = postnode;
                        }
                        postnode->mParent = last_parent;
                        last_parent = postnode;
                        new_abs_transform *= postnode->mTransformation;
                    }
                } else {
                    // free the nodes we allocated as we don't need them
                    Util::delete_fun<aiNode> deleter;
                    std::for_each(
                        post_nodes_chain.begin(),
                        post_nodes_chain.end(),
                        deleter
                    );
                }
                // attach sub-nodes (if any)
                ConvertNodes( model->ID(), *last_parent, new_abs_transform );
                if ( doc.Settings().readLights ) {
-                    ConvertLights( *model );
+                    ConvertLights( *model, original_name );
                }
                if ( doc.Settings().readCameras ) {
-                    ConvertCameras( *model );
+                    ConvertCameras( *model, original_name );
                }
                nodes.push_back( nodes_chain.front() );
@ -240,38 +281,36 @@ void Converter::ConvertNodes( uint64_t id, aiNode& parent, const aiMatrix4x4& pa
        Util::delete_fun<aiNode> deleter;
        std::for_each( nodes.begin(), nodes.end(), deleter );
        std::for_each( nodes_chain.begin(), nodes_chain.end(), deleter );
        std::for_each( post_nodes_chain.begin(), post_nodes_chain.end(), deleter );
    }
 }
-void Converter::ConvertLights( const Model& model )
+void Converter::ConvertLights( const Model& model, const std::string &orig_name ) {
 {
    const std::vector<const NodeAttribute*>& node_attrs = model.GetAttributes();
    for( const NodeAttribute* attr : node_attrs ) {
        const Light* const light = dynamic_cast<const Light*>( attr );
        if ( light ) {
-            ConvertLight( model, *light );
+            ConvertLight( *light, orig_name );
        }
    }
 }
-void Converter::ConvertCameras( const Model& model )
+void Converter::ConvertCameras( const Model& model, const std::string &orig_name ) {
 {
    const std::vector<const NodeAttribute*>& node_attrs = model.GetAttributes();
    for( const NodeAttribute* attr : node_attrs ) {
        const Camera* const cam = dynamic_cast<const Camera*>( attr );
        if ( cam ) {
-            ConvertCamera( model, *cam );
+            ConvertCamera( *cam, orig_name );
        }
    }
 }
-void Converter::ConvertLight( const Model& model, const Light& light )
+void Converter::ConvertLight( const Light& light, const std::string &orig_name ) {
 {
    lights.push_back( new aiLight() );
    aiLight* const out_light = lights.back();
-    out_light->mName.Set( FixNodeName( model.Name() ) );
+    out_light->mName.Set( orig_name );
    const float intensity = light.Intensity() / 100.0f;
    const aiVector3D& col = light.Color();
@ -344,12 +383,12 @@ void Converter::ConvertLight( const Model& model, const Light& light )
    }
 }
-void Converter::ConvertCamera( const Model& model, const Camera& cam )
+void Converter::ConvertCamera( const Camera& cam, const std::string &orig_name )
 {
    cameras.push_back( new aiCamera() );
    aiCamera* const out_camera = cameras.back();
-    out_camera->mName.Set( FixNodeName( model.Name() ) );
+    out_camera->mName.Set( orig_name );
    out_camera->mAspect = cam.AspectWidth() / cam.AspectHeight();
@ -363,6 +402,31 @@ void Converter::ConvertCamera( const Model& model, const Camera& cam )
    out_camera->mClipPlaneFar = cam.FarPlane();
 }
 static bool HasName( NodeNameCache &cache, const std::string &name ) {
    NodeNameCache::const_iterator it( std::find( cache.begin(), cache.end(), name ) );
    return it != cache.end();
 }
 void Converter::GetUniqueName( const std::string &name, std::string uniqueName ) {
    if ( !HasName( mNodeNames, name ) ) {
        uniqueName = name;
        return;
    }
    int i( 0 );
    std::string newName;
    while ( HasName( mNodeNames, newName ) ) {
        ++i;
        newName.clear();
        newName += name;
        std::stringstream ext;
        ext << std::setfill( '0' ) << std::setw( 3 ) << i;
        newName += ext.str();
    }
    uniqueName = newName;
    mNodeNames.push_back( uniqueName );
 }
 const char* Converter::NameTransformationComp( TransformationComp comp )
 {
@ -396,6 +460,12 @@ const char* Converter::NameTransformationComp( TransformationComp comp )
        return "GeometricRotation";
    case TransformationComp_GeometricTranslation:
        return "GeometricTranslation";
    case TransformationComp_GeometricScalingInverse:
        return "GeometricScalingInverse";
    case TransformationComp_GeometricRotationInverse:
        return "GeometricRotationInverse";
    case TransformationComp_GeometricTranslationInverse:
        return "GeometricTranslationInverse";
    case TransformationComp_MAXIMUM: // this is to silence compiler warnings
    default:
        break;
@ -437,6 +507,12 @@ const char* Converter::NameTransformationCompProperty( TransformationComp comp )
        return "GeometricRotation";
    case TransformationComp_GeometricTranslation:
        return "GeometricTranslation";
    case TransformationComp_GeometricScalingInverse:
        return "GeometricScalingInverse";
    case TransformationComp_GeometricRotationInverse:
        return "GeometricRotationInverse";
    case TransformationComp_GeometricTranslationInverse:
        return "GeometricTranslationInverse";
    case TransformationComp_MAXIMUM: // this is to silence compiler warnings
        break;
    }
@ -548,17 +624,25 @@ bool Converter::NeedsComplexTransformationChain( const Model& model )
    bool ok;
    const float zero_epsilon = 1e-6f;
    const aiVector3D all_ones(1.0f, 1.0f, 1.0f);
    for ( size_t i = 0; i < TransformationComp_MAXIMUM; ++i ) {
        const TransformationComp comp = static_cast< TransformationComp >( i );
-        if ( comp == TransformationComp_Rotation || comp == TransformationComp_Scaling || comp == TransformationComp_Translation ||
+        if ( comp == TransformationComp_Rotation || comp == TransformationComp_Scaling || comp == TransformationComp_Translation ) {
                comp == TransformationComp_GeometricScaling || comp == TransformationComp_GeometricRotation || comp == TransformationComp_GeometricTranslation ) {
            continue;
        }
        bool scale_compare = ( comp == TransformationComp_GeometricScaling || comp == TransformationComp_Scaling );
        const aiVector3D& v = PropertyGet<aiVector3D>( props, NameTransformationCompProperty( comp ), ok );
-        if ( ok && v.SquareLength() > zero_epsilon ) {
+        if ( ok && scale_compare ) {
-            return true;
+            if ( (v - all_ones).SquareLength() > zero_epsilon ) {
                return true;
            }
        } else if ( ok ) {
            if ( v.SquareLength() > zero_epsilon ) {
                return true;
            }
        }
    }
@ -570,7 +654,7 @@ std::string Converter::NameTransformationChainNode( const std::string& name, Tra
    return name + std::string( MAGIC_NODE_TAG ) + "_" + NameTransformationComp( comp );
 }
-void Converter::GenerateTransformationNodeChain( const Model& model, std::vector<aiNode*>& output_nodes )
+void Converter::GenerateTransformationNodeChain( const Model& model, std::vector<aiNode*>& output_nodes, std::vector<aiNode*>& post_output_nodes )
 {
    const PropertyTable& props = model.Props();
    const Model::RotOrder rot = model.RotationOrder();
@ -582,20 +666,21 @@ void Converter::GenerateTransformationNodeChain( const Model& model, std::vector
    // generate transformation matrices for all the different transformation components
    const float zero_epsilon = 1e-6f;
    const aiVector3D all_ones(1.0f, 1.0f, 1.0f);
    bool is_complex = false;
    const aiVector3D& PreRotation = PropertyGet<aiVector3D>( props, "PreRotation", ok );
    if ( ok && PreRotation.SquareLength() > zero_epsilon ) {
        is_complex = true;
-        GetRotationMatrix( rot, PreRotation, chain[ TransformationComp_PreRotation ] );
+        GetRotationMatrix( Model::RotOrder::RotOrder_EulerXYZ, PreRotation, chain[ TransformationComp_PreRotation ] );
    }
    const aiVector3D& PostRotation = PropertyGet<aiVector3D>( props, "PostRotation", ok );
    if ( ok && PostRotation.SquareLength() > zero_epsilon ) {
        is_complex = true;
-        GetRotationMatrix( rot, PostRotation, chain[ TransformationComp_PostRotation ] );
+        GetRotationMatrix( Model::RotOrder::RotOrder_EulerXYZ, PostRotation, chain[ TransformationComp_PostRotation ] );
    }
    const aiVector3D& RotationPivot = PropertyGet<aiVector3D>( props, "RotationPivot", ok );
@ -634,7 +719,7 @@ void Converter::GenerateTransformationNodeChain( const Model& model, std::vector
    }
    const aiVector3D& Scaling = PropertyGet<aiVector3D>( props, "Lcl Scaling", ok );
-    if ( ok && std::fabs( Scaling.SquareLength() - 1.0f ) > zero_epsilon ) {
+    if ( ok && (Scaling - all_ones).SquareLength() > zero_epsilon ) {
        aiMatrix4x4::Scaling( Scaling, chain[ TransformationComp_Scaling ] );
    }
@ -644,18 +729,38 @@ void Converter::GenerateTransformationNodeChain( const Model& model, std::vector
    }
    const aiVector3D& GeometricScaling = PropertyGet<aiVector3D>( props, "GeometricScaling", ok );
-    if ( ok && std::fabs( GeometricScaling.SquareLength() - 1.0f ) > zero_epsilon ) {
+    if ( ok && (GeometricScaling - all_ones).SquareLength() > zero_epsilon ) {
        is_complex = true;
        aiMatrix4x4::Scaling( GeometricScaling, chain[ TransformationComp_GeometricScaling ] );
        aiVector3D GeometricScalingInverse = GeometricScaling;
        bool canscale = true;
        for (unsigned int i = 0; i < 3; ++i) {
            if ( std::fabs( GeometricScalingInverse[i] ) > zero_epsilon ) {
                GeometricScalingInverse[i] = 1.0f / GeometricScaling[i];
            } else {
                FBXImporter::LogError( "cannot invert geometric scaling matrix with a 0.0 scale component" );
                canscale = false;
                break;
            }
        }
        if (canscale) {
            aiMatrix4x4::Scaling( GeometricScalingInverse, chain[ TransformationComp_GeometricScalingInverse ] );
        }
    }
    const aiVector3D& GeometricRotation = PropertyGet<aiVector3D>( props, "GeometricRotation", ok );
    if ( ok && GeometricRotation.SquareLength() > zero_epsilon ) {
        is_complex = true;
        GetRotationMatrix( rot, GeometricRotation, chain[ TransformationComp_GeometricRotation ] );
        GetRotationMatrix( rot, GeometricRotation, chain[ TransformationComp_GeometricRotationInverse ] );
        chain[ TransformationComp_GeometricRotationInverse ].Inverse();
    }
    const aiVector3D& GeometricTranslation = PropertyGet<aiVector3D>( props, "GeometricTranslation", ok );
    if ( ok && GeometricTranslation.SquareLength() > zero_epsilon ) {
        is_complex = true;
        aiMatrix4x4::Translation( GeometricTranslation, chain[ TransformationComp_GeometricTranslation ] );
        aiMatrix4x4::Translation( -GeometricTranslation, chain[ TransformationComp_GeometricTranslationInverse ] );
    }
    // is_complex needs to be consistent with NeedsComplexTransformationChain()
@ -663,7 +768,7 @@ void Converter::GenerateTransformationNodeChain( const Model& model, std::vector
    // not be guaranteed.
    ai_assert( NeedsComplexTransformationChain( model ) == is_complex );
-    const std::string& name = FixNodeName( model.Name() );
+    std::string name = FixNodeName( model.Name() );
    // now, if we have more than just Translation, Scaling and Rotation,
    // we need to generate a full node chain to accommodate for assimp's
@ -690,10 +795,18 @@ void Converter::GenerateTransformationNodeChain( const Model& model, std::vector
            }
            aiNode* nd = new aiNode();
            output_nodes.push_back( nd );
            nd->mName.Set( NameTransformationChainNode( name, comp ) );
            nd->mTransformation = chain[ i ];
            // geometric inverses go in a post-node chain
            if ( comp == TransformationComp_GeometricScalingInverse ||
                 comp == TransformationComp_GeometricRotationInverse ||
                 comp == TransformationComp_GeometricTranslationInverse
            ) {
                post_output_nodes.push_back( nd );
            } else {
                output_nodes.push_back( nd );
            }
        }
        ai_assert( output_nodes.size() );
@ -703,8 +816,10 @@ void Converter::GenerateTransformationNodeChain( const Model& model, std::vector
    // else, we can just multiply the matrices together
    aiNode* nd = new aiNode();
    output_nodes.push_back( nd );
    std::string uniqueName;
    GetUniqueName( name, uniqueName );
-    nd->mName.Set( name );
+    nd->mName.Set( uniqueName );
    for (const auto &transform : chain) {
        nd->mTransformation = nd->mTransformation * transform;
@ -1559,9 +1674,8 @@ void Converter::TrySetTextureProperties( aiMaterial* out_mat, const TextureMap&
 }
 void Converter::TrySetTextureProperties( aiMaterial* out_mat, const LayeredTextureMap& layeredTextures,
-    const std::string& propName,
+        const std::string& propName,
-    aiTextureType target, const MeshGeometry* const mesh )
+        aiTextureType target, const MeshGeometry* const mesh ) {
 {
    LayeredTextureMap::const_iterator it = layeredTextures.find( propName );
    if ( it == layeredTextures.end() ) {
        return;
@ -1805,11 +1919,11 @@ void Converter::SetShadingPropertiesCommon( aiMaterial* out_mat, const PropertyT
    // TransparentColor / TransparencyFactor... gee thanks FBX :rolleyes:
    const aiColor3D& Transparent = GetColorPropertyFactored( props, "TransparentColor", "TransparencyFactor", ok );
-    float CalculatedOpacity = 1.0;
+    float CalculatedOpacity = 1.0f;
    if ( ok ) {
        out_mat->AddProperty( &Transparent, 1, AI_MATKEY_COLOR_TRANSPARENT );
        // as calculated by FBX SDK 2017:
-        CalculatedOpacity = 1.0 - ((Transparent.r + Transparent.g + Transparent.b) / 3.0);
+        CalculatedOpacity = 1.0f - ((Transparent.r + Transparent.g + Transparent.b) / 3.0f);
    }
    // use of TransparencyFactor is inconsistent.
@ -1923,81 +2037,17 @@ void Converter::ConvertAnimations()
    }
 }
-void Converter::RenameNode( const std::string& fixed_name, const std::string& new_name ) {
+std::string Converter::FixNodeName( const std::string& name ) {
    if ( node_names.find( fixed_name ) == node_names.end() ) {
        FBXImporter::LogError( "Cannot rename node " + fixed_name + ", not existing.");
        return;
    }
    if ( node_names.find( new_name ) != node_names.end() ) {
        FBXImporter::LogError( "Cannot rename node " + fixed_name + " to " + new_name +", name already existing." );
        return;
    }
    ai_assert( node_names.find( fixed_name ) != node_names.end() );
    ai_assert( node_names.find( new_name ) == node_names.end() );
    renamed_nodes[ fixed_name ] = new_name;
    const aiString fn( fixed_name );
    for( aiCamera* cam : cameras ) {
        if ( cam->mName == fn ) {
            cam->mName.Set( new_name );
            break;
        }
    }
    for( aiLight* light : lights ) {
        if ( light->mName == fn ) {
            light->mName.Set( new_name );
            break;
        }
    }
    for( aiAnimation* anim : animations ) {
        for ( unsigned int i = 0; i < anim->mNumChannels; ++i ) {
            aiNodeAnim* const na = anim->mChannels[ i ];
            if ( na->mNodeName == fn ) {
                na->mNodeName.Set( new_name );
                break;
            }
        }
    }
 }
 std::string Converter::FixNodeName( const std::string& name )
 {
    // strip Model:: prefix, avoiding ambiguities (i.e. don't strip if
    // this causes ambiguities, well possible between empty identifiers,
    // such as "Model::" and ""). Make sure the behaviour is consistent
    // across multiple calls to FixNodeName().
    if ( name.substr( 0, 7 ) == "Model::" ) {
        std::string temp = name.substr( 7 );
-
+        return temp;
        const NodeNameMap::const_iterator it = node_names.find( temp );
        if ( it != node_names.end() ) {
            if ( !( *it ).second ) {
                return FixNodeName( name + "_" );
            }
        }
        node_names[ temp ] = true;
        const NameNameMap::const_iterator rit = renamed_nodes.find( temp );
        return rit == renamed_nodes.end() ? temp : ( *rit ).second;
    }
-    const NodeNameMap::const_iterator it = node_names.find( name );
+    return name;
    if ( it != node_names.end() ) {
        if ( ( *it ).second ) {
            return FixNodeName( name + "_" );
        }
    }
    node_names[ name ] = false;
    const NameNameMap::const_iterator rit = renamed_nodes.find( name );
    return rit == renamed_nodes.end() ? name : ( *rit ).second;
 }
 void Converter::ConvertAnimationStack( const AnimationStack& st )
@ -2209,8 +2259,7 @@ void Converter::GenerateNodeAnimations( std::vector<aiNodeAnim*>& node_anims,
            has_any = true;
-            if ( comp != TransformationComp_Rotation && comp != TransformationComp_Scaling && comp != TransformationComp_Translation &&
+            if ( comp != TransformationComp_Rotation && comp != TransformationComp_Scaling && comp != TransformationComp_Translation )
                comp != TransformationComp_GeometricScaling && comp != TransformationComp_GeometricRotation && comp != TransformationComp_GeometricTranslation )
            {
                has_complex = true;
            }
--- a/code/FBXConverter.h
+++ b/code/FBXConverter.h
@ -68,6 +68,8 @@ namespace FBX {
 class Document;
 using NodeNameCache = std::vector<std::string>;
 /** 
 *  Convert a FBX #Document to #aiScene
 *  @param out Empty scene to be populated
@ -82,7 +84,10 @@ public:
    *  The different parts that make up the final local transformation of a fbx-node
    */
    enum TransformationComp {
-        TransformationComp_Translation = 0,
+        TransformationComp_GeometricScalingInverse = 0,
        TransformationComp_GeometricRotationInverse,
        TransformationComp_GeometricTranslationInverse,
        TransformationComp_Translation,
        TransformationComp_RotationOffset,
        TransformationComp_RotationPivot,
        TransformationComp_PreRotation,
@ -114,16 +119,19 @@ private:
    void ConvertNodes(uint64_t id, aiNode& parent, const aiMatrix4x4& parent_transform = aiMatrix4x4());
    // ------------------------------------------------------------------------------------------------
-    void ConvertLights(const Model& model);
+    void ConvertLights(const Model& model, const std::string &orig_name );
    // ------------------------------------------------------------------------------------------------
-    void ConvertCameras(const Model& model);
+    void ConvertCameras(const Model& model, const std::string &orig_name );
    // ------------------------------------------------------------------------------------------------
-    void ConvertLight(const Model& model, const Light& light);
+    void ConvertLight( const Light& light, const std::string &orig_name );
    // ------------------------------------------------------------------------------------------------
-    void ConvertCamera(const Model& model, const Camera& cam);
+    void ConvertCamera( const Camera& cam, const std::string &orig_name );
    // ------------------------------------------------------------------------------------------------
    void GetUniqueName( const std::string &name, std::string uniqueName );
    // ------------------------------------------------------------------------------------------------
    // this returns unified names usable within assimp identifiers (i.e. no space characters -
@ -153,7 +161,7 @@ private:
    /**
    *  note: memory for output_nodes will be managed by the caller
    */
-    void GenerateTransformationNodeChain(const Model& model, std::vector<aiNode*>& output_nodes);
+    void GenerateTransformationNodeChain(const Model& model, std::vector<aiNode*>& output_nodes, std::vector<aiNode*>& post_output_nodes);
    // ------------------------------------------------------------------------------------------------
    void SetupNodeMetadata(const Model& model, aiNode& nd);
@ -255,18 +263,6 @@ private:
    // convert animation data to aiAnimation et al
    void ConvertAnimations();
    // ------------------------------------------------------------------------------------------------
    // rename a node already partially converted. fixed_name is a string previously returned by
    // FixNodeName, new_name specifies the string FixNodeName should return on all further invocations
    // which would previously have returned the old value.
    //
    // this also updates names in node animations, cameras and light sources and is thus slow.
    //
    // NOTE: the caller is responsible for ensuring that the new name is unique and does
    // not collide with any other identifiers. The best way to ensure this is to only
    // append to the old name, which is guaranteed to match these requirements.
    void RenameNode(const std::string& fixed_name, const std::string& new_name);
    // ------------------------------------------------------------------------------------------------
    // takes a fbx node name and returns the identifier to be used in the assimp output scene.
    // the function is guaranteed to provide consistent results over multiple invocations
@ -278,7 +274,6 @@ private:
    // XXX: better use multi_map ..
    typedef std::map<std::string, std::vector<const AnimationCurveNode*> > NodeMap;
    // ------------------------------------------------------------------------------------------------
    void ConvertAnimationStack(const AnimationStack& st);
@ -429,13 +424,7 @@ private:
    typedef std::map<std::string, unsigned int> NodeAnimBitMap;
    NodeAnimBitMap node_anim_chain_bits;
-    // name -> has had its prefix_stripped?
+    NodeNameCache mNodeNames;
    typedef std::map<std::string, bool> NodeNameMap;
    NodeNameMap node_names;
    typedef std::map<std::string, std::string> NameNameMap;
    NameNameMap renamed_nodes;
    double anim_fps;
    aiScene* const out;
--- a/code/FBXDocument.cpp
+++ b/code/FBXDocument.cpp
@ -351,7 +351,9 @@ void Document::ReadGlobalSettings()
        return;
    }
-    std::shared_ptr<const PropertyTable> props = GetPropertyTable(*this, "", *ehead, *ehead->Compound(), true);
+    std::shared_ptr<const PropertyTable> props = GetPropertyTable( *this, "", *ehead, *ehead->Compound(), true );
    //double v = PropertyGet<float>( *props.get(), std::string("UnitScaleFactor"), 1.0 );
    if(!props) {
        DOMError("GlobalSettings dictionary contains no property table");
--- a/code/FBXDocument.h
+++ b/code/FBXDocument.h
@ -1022,8 +1022,8 @@ public:
    fbx_simple_property(CoordAxisSign, int, 1)
    fbx_simple_property(OriginalUpAxis, int, 0)
    fbx_simple_property(OriginalUpAxisSign, int, 1)
-    fbx_simple_property(UnitScaleFactor, double, 1)
+    fbx_simple_property(UnitScaleFactor, float, 1)
-    fbx_simple_property(OriginalUnitScaleFactor, double, 1)
+    fbx_simple_property(OriginalUnitScaleFactor, float, 1)
    fbx_simple_property(AmbientColor, aiVector3D, aiVector3D(0,0,0))
    fbx_simple_property(DefaultCamera, std::string, "")
--- a/code/FBXExportNode.cpp
+++ b/code/FBXExportNode.cpp
@ -0,0 +1,568 @@
 /*
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 Copyright (c) 2006-2018, assimp team
 All rights reserved.
 Redistribution and use of this software in source and binary forms,
 with or without modification, are permitted provided that the
 following conditions are met:
 * Redistributions of source code must retain the above
 copyright notice, this list of conditions and the
 following disclaimer.
 * Redistributions in binary form must reproduce the above
 copyright notice, this list of conditions and the
 following disclaimer in the documentation and/or other
 materials provided with the distribution.
 * Neither the name of the assimp team, nor the names of its
 contributors may be used to endorse or promote products
 derived from this software without specific prior
 written permission of the assimp team.
 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ----------------------------------------------------------------------
 */
 #ifndef ASSIMP_BUILD_NO_EXPORT
 #ifndef ASSIMP_BUILD_NO_FBX_EXPORTER
 #include "FBXExportNode.h"
 #include "FBXCommon.h"
 #include <assimp/StreamWriter.h> // StreamWriterLE
 #include <assimp/Exceptional.h> // DeadlyExportError
 #include <assimp/ai_assert.h>
 #include <assimp/StringUtils.h> // ai_snprintf
 #include <string>
 #include <ostream>
 #include <sstream> // ostringstream
 #include <memory> // shared_ptr
 // AddP70<type> helpers... there's no usable pattern here,
 // so all are defined as separate functions.
 // Even "animatable" properties are often completely different
 // from the standard (nonanimated) property definition,
 // so they are specified with an 'A' suffix.
 void FBX::Node::AddP70int(
    const std::string& name, int32_t value
 ) {
    FBX::Node n("P");
    n.AddProperties(name, "int", "Integer", "", value);
    AddChild(n);
 }
 void FBX::Node::AddP70bool(
    const std::string& name, bool value
 ) {
    FBX::Node n("P");
    n.AddProperties(name, "bool", "", "", int32_t(value));
    AddChild(n);
 }
 void FBX::Node::AddP70double(
    const std::string& name, double value
 ) {
    FBX::Node n("P");
    n.AddProperties(name, "double", "Number", "", value);
    AddChild(n);
 }
 void FBX::Node::AddP70numberA(
    const std::string& name, double value
 ) {
    FBX::Node n("P");
    n.AddProperties(name, "Number", "", "A", value);
    AddChild(n);
 }
 void FBX::Node::AddP70color(
    const std::string& name, double r, double g, double b
 ) {
    FBX::Node n("P");
    n.AddProperties(name, "ColorRGB", "Color", "", r, g, b);
    AddChild(n);
 }
 void FBX::Node::AddP70colorA(
    const std::string& name, double r, double g, double b
 ) {
    FBX::Node n("P");
    n.AddProperties(name, "Color", "", "A", r, g, b);
    AddChild(n);
 }
 void FBX::Node::AddP70vector(
    const std::string& name, double x, double y, double z
 ) {
    FBX::Node n("P");
    n.AddProperties(name, "Vector3D", "Vector", "", x, y, z);
    AddChild(n);
 }
 void FBX::Node::AddP70vectorA(
    const std::string& name, double x, double y, double z
 ) {
    FBX::Node n("P");
    n.AddProperties(name, "Vector", "", "A", x, y, z);
    AddChild(n);
 }
 void FBX::Node::AddP70string(
    const std::string& name, const std::string& value
 ) {
    FBX::Node n("P");
    n.AddProperties(name, "KString", "", "", value);
    AddChild(n);
 }
 void FBX::Node::AddP70enum(
    const std::string& name, int32_t value
 ) {
    FBX::Node n("P");
    n.AddProperties(name, "enum", "", "", value);
    AddChild(n);
 }
 void FBX::Node::AddP70time(
    const std::string& name, int64_t value
 ) {
    FBX::Node n("P");
    n.AddProperties(name, "KTime", "Time", "", value);
    AddChild(n);
 }
 // public member functions for writing nodes to stream
 void FBX::Node::Dump(
    std::shared_ptr<Assimp::IOStream> outfile,
    bool binary, int indent
 ) {
    if (binary) {
        Assimp::StreamWriterLE outstream(outfile);
        DumpBinary(outstream);
    } else {
        std::ostringstream ss;
        DumpAscii(ss, indent);
        std::string s = ss.str();
        outfile->Write(s.c_str(), s.size(), 1);
    }
 }
 void FBX::Node::Dump(
    Assimp::StreamWriterLE &outstream,
    bool binary, int indent
 ) {
    if (binary) {
        DumpBinary(outstream);
    } else {
        std::ostringstream ss;
        DumpAscii(ss, indent);
        outstream.PutString(ss.str());
    }
 }
 // public member functions for low-level writing
 void FBX::Node::Begin(
    Assimp::StreamWriterLE &s,
    bool binary, int indent
 ) {
    if (binary) {
        BeginBinary(s);
    } else {
        // assume we're at the correct place to start already
        (void)indent;
        std::ostringstream ss;
        BeginAscii(ss, indent);
        s.PutString(ss.str());
    }
 }
 void FBX::Node::DumpProperties(
    Assimp::StreamWriterLE& s,
    bool binary, int indent
 ) {
    if (binary) {
        DumpPropertiesBinary(s);
    } else {
        std::ostringstream ss;
        DumpPropertiesAscii(ss, indent);
        s.PutString(ss.str());
    }
 }
 void FBX::Node::EndProperties(
    Assimp::StreamWriterLE &s,
    bool binary, int indent
 ) {
    EndProperties(s, binary, indent, properties.size());
 }
 void FBX::Node::EndProperties(
    Assimp::StreamWriterLE &s,
    bool binary, int indent,
    size_t num_properties
 ) {
    if (binary) {
        EndPropertiesBinary(s, num_properties);
    } else {
        // nothing to do
        (void)indent;
    }
 }
 void FBX::Node::BeginChildren(
    Assimp::StreamWriterLE &s,
    bool binary, int indent
 ) {
    if (binary) {
        // nothing to do
    } else {
        std::ostringstream ss;
        BeginChildrenAscii(ss, indent);
        s.PutString(ss.str());
    }
 }
 void FBX::Node::DumpChildren(
    Assimp::StreamWriterLE& s,
    bool binary, int indent
 ) {
    if (binary) {
        DumpChildrenBinary(s);
    } else {
        std::ostringstream ss;
        DumpChildrenAscii(ss, indent);
        s.PutString(ss.str());
    }
 }
 void FBX::Node::End(
    Assimp::StreamWriterLE &s,
    bool binary, int indent,
    bool has_children
 ) {
    if (binary) {
        EndBinary(s, has_children);
    } else {
        std::ostringstream ss;
        EndAscii(ss, indent, has_children);
        s.PutString(ss.str());
    }
 }
 // public member functions for writing to binary fbx
 void FBX::Node::DumpBinary(Assimp::StreamWriterLE &s)
 {
    // write header section (with placeholders for some things)
    BeginBinary(s);
    // write properties
    DumpPropertiesBinary(s);
    // go back and fill in property related placeholders
    EndPropertiesBinary(s, properties.size());
    // write children
    DumpChildrenBinary(s);
    // finish, filling in end offset placeholder
    EndBinary(s, force_has_children || !children.empty());
 }
 // public member functions for writing to ascii fbx
 void FBX::Node::DumpAscii(std::ostream &s, int indent)
 {
    // write name
    BeginAscii(s, indent);
    // write properties
    DumpPropertiesAscii(s, indent);
    if (force_has_children || !children.empty()) {
        // begin children (with a '{')
        BeginChildrenAscii(s, indent + 1);
        // write children
        DumpChildrenAscii(s, indent + 1);
    }
    // finish (also closing the children bracket '}')
    EndAscii(s, indent, force_has_children || !children.empty());
 }
 // private member functions for low-level writing to fbx
 void FBX::Node::BeginBinary(Assimp::StreamWriterLE &s)
 {
    // remember start pos so we can come back and write the end pos
    this->start_pos = s.Tell();
    // placeholders for end pos and property section info
    s.PutU4(0); // end pos
    s.PutU4(0); // number of properties
    s.PutU4(0); // total property section length
    // node name
    s.PutU1(uint8_t(name.size())); // length of node name
    s.PutString(name); // node name as raw bytes
    // property data comes after here
    this->property_start = s.Tell();
 }
 void FBX::Node::DumpPropertiesBinary(Assimp::StreamWriterLE& s)
 {
    for (auto &p : properties) {
        p.DumpBinary(s);
    }
 }
 void FBX::Node::EndPropertiesBinary(
    Assimp::StreamWriterLE &s,
    size_t num_properties
 ) {
    if (num_properties == 0) { return; }
    size_t pos = s.Tell();
    ai_assert(pos > property_start);
    size_t property_section_size = pos - property_start;
    s.Seek(start_pos + 4);
    s.PutU4(uint32_t(num_properties));
    s.PutU4(uint32_t(property_section_size));
    s.Seek(pos);
 }
 void FBX::Node::DumpChildrenBinary(Assimp::StreamWriterLE& s)
 {
    for (FBX::Node& child : children) {
        child.DumpBinary(s);
    }
 }
 void FBX::Node::EndBinary(
    Assimp::StreamWriterLE &s,
    bool has_children
 ) {
    // if there were children, add a null record
    if (has_children) { s.PutString(FBX::NULL_RECORD); }
    // now go back and write initial pos
    this->end_pos = s.Tell();
    s.Seek(start_pos);
    s.PutU4(uint32_t(end_pos));
    s.Seek(end_pos);
 }
 void FBX::Node::BeginAscii(std::ostream& s, int indent)
 {
    s << '\n';
    for (int i = 0; i < indent; ++i) { s << '\t'; }
    s << name << ": ";
 }
 void FBX::Node::DumpPropertiesAscii(std::ostream &s, int indent)
 {
    for (size_t i = 0; i < properties.size(); ++i) {
        if (i > 0) { s << ", "; }
        properties[i].DumpAscii(s, indent);
    }
 }
 void FBX::Node::BeginChildrenAscii(std::ostream& s, int indent)
 {
    // only call this if there are actually children
    s << " {";
    (void)indent;
 }
 void FBX::Node::DumpChildrenAscii(std::ostream& s, int indent)
 {
    // children will need a lot of padding and corralling
    if (children.size() || force_has_children) {
        for (size_t i = 0; i < children.size(); ++i) {
            // no compression in ascii files, so skip this node if it exists
            if (children[i].name == "EncryptionType") { continue; }
            // the child can dump itself
            children[i].DumpAscii(s, indent);
        }
    }
 }
 void FBX::Node::EndAscii(std::ostream& s, int indent, bool has_children)
 {
    if (!has_children) { return; } // nothing to do
    s << '\n';
    for (int i = 0; i < indent; ++i) { s << '\t'; }
    s << "}";
 }
 // private helpers for static member functions
 // ascii property node from vector of doubles
 void FBX::Node::WritePropertyNodeAscii(
    const std::string& name,
    const std::vector<double>& v,
    Assimp::StreamWriterLE& s,
    int indent
 ){
    char buffer[32];
    FBX::Node node(name);
    node.Begin(s, false, indent);
    std::string vsize = std::to_string(v.size());
    // *<size> {
    s.PutChar('*'); s.PutString(vsize); s.PutString(" {\n");
    // indent + 1
    for (int i = 0; i < indent + 1; ++i) { s.PutChar('\t'); }
    // a: value,value,value,...
    s.PutString("a: ");
    int count = 0;
    for (size_t i = 0; i < v.size(); ++i) {
        if (i > 0) { s.PutChar(','); }
        int len = ai_snprintf(buffer, sizeof(buffer), "%f", v[i]);
        count += len;
        if (count > 2048) { s.PutChar('\n'); count = 0; }
        if (len < 0 || len > 31) {
            // this should never happen
            throw DeadlyExportError("failed to convert double to string");
        }
        for (int j = 0; j < len; ++j) { s.PutChar(buffer[j]); }
    }
    // }
    s.PutChar('\n');
    for (int i = 0; i < indent; ++i) { s.PutChar('\t'); }
    s.PutChar('}'); s.PutChar(' ');
    node.End(s, false, indent, false);
 }
 // ascii property node from vector of int32_t
 void FBX::Node::WritePropertyNodeAscii(
    const std::string& name,
    const std::vector<int32_t>& v,
    Assimp::StreamWriterLE& s,
    int indent
 ){
    char buffer[32];
    FBX::Node node(name);
    node.Begin(s, false, indent);
    std::string vsize = std::to_string(v.size());
    // *<size> {
    s.PutChar('*'); s.PutString(vsize); s.PutString(" {\n");
    // indent + 1
    for (int i = 0; i < indent + 1; ++i) { s.PutChar('\t'); }
    // a: value,value,value,...
    s.PutString("a: ");
    int count = 0;
    for (size_t i = 0; i < v.size(); ++i) {
        if (i > 0) { s.PutChar(','); }
        int len = ai_snprintf(buffer, sizeof(buffer), "%d", v[i]);
        count += len;
        if (count > 2048) { s.PutChar('\n'); count = 0; }
        if (len < 0 || len > 31) {
            // this should never happen
            throw DeadlyExportError("failed to convert double to string");
        }
        for (int j = 0; j < len; ++j) { s.PutChar(buffer[j]); }
    }
    // }
    s.PutChar('\n');
    for (int i = 0; i < indent; ++i) { s.PutChar('\t'); }
    s.PutChar('}'); s.PutChar(' ');
    node.End(s, false, indent, false);
 }
 // binary property node from vector of doubles
 // TODO: optional zip compression!
 void FBX::Node::WritePropertyNodeBinary(
    const std::string& name,
    const std::vector<double>& v,
    Assimp::StreamWriterLE& s
 ){
    FBX::Node node(name);
    node.BeginBinary(s);
    s.PutU1('d');
    s.PutU4(uint32_t(v.size())); // number of elements
    s.PutU4(0); // no encoding (1 would be zip-compressed)
    s.PutU4(uint32_t(v.size()) * 8); // data size
    for (auto it = v.begin(); it != v.end(); ++it) { s.PutF8(*it); }
    node.EndPropertiesBinary(s, 1);
    node.EndBinary(s, false);
 }
 // binary property node from vector of int32_t
 // TODO: optional zip compression!
 void FBX::Node::WritePropertyNodeBinary(
    const std::string& name,
    const std::vector<int32_t>& v,
    Assimp::StreamWriterLE& s
 ){
    FBX::Node node(name);
    node.BeginBinary(s);
    s.PutU1('i');
    s.PutU4(uint32_t(v.size())); // number of elements
    s.PutU4(0); // no encoding (1 would be zip-compressed)
    s.PutU4(uint32_t(v.size()) * 4); // data size
    for (auto it = v.begin(); it != v.end(); ++it) { s.PutI4(*it); }
    node.EndPropertiesBinary(s, 1);
    node.EndBinary(s, false);
 }
 // public static member functions
 // convenience function to create and write a property node,
 // holding a single property which is an array of values.
 // does not copy the data, so is efficient for large arrays.
 void FBX::Node::WritePropertyNode(
    const std::string& name,
    const std::vector<double>& v,
    Assimp::StreamWriterLE& s,
    bool binary, int indent
 ){
    if (binary) {
        FBX::Node::WritePropertyNodeBinary(name, v, s);
    } else {
        FBX::Node::WritePropertyNodeAscii(name, v, s, indent);
    }
 }
 // convenience function to create and write a property node,
 // holding a single property which is an array of values.
 // does not copy the data, so is efficient for large arrays.
 void FBX::Node::WritePropertyNode(
    const std::string& name,
    const std::vector<int32_t>& v,
    Assimp::StreamWriterLE& s,
    bool binary, int indent
 ){
    if (binary) {
        FBX::Node::WritePropertyNodeBinary(name, v, s);
    } else {
        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
@ -0,0 +1,258 @@
 /*
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 Copyright (c) 2006-2018, assimp team
 All rights reserved.
 Redistribution and use of this software in source and binary forms,
 with or without modification, are permitted provided that the
 following conditions are met:
 * Redistributions of source code must retain the above
 copyright notice, this list of conditions and the
 following disclaimer.
 * Redistributions in binary form must reproduce the above
 copyright notice, this list of conditions and the
 following disclaimer in the documentation and/or other
 materials provided with the distribution.
 * Neither the name of the assimp team, nor the names of its
 contributors may be used to endorse or promote products
 derived from this software without specific prior
 written permission of the assimp team.
 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ----------------------------------------------------------------------
 */
 /** @file FBXExportNode.h
 * Declares the FBX::Node helper class for fbx export.
 */
 #ifndef AI_FBXEXPORTNODE_H_INC
 #define AI_FBXEXPORTNODE_H_INC
 #ifndef ASSIMP_BUILD_NO_FBX_EXPORTER
 #include "FBXExportProperty.h"
 #include <assimp/StreamWriter.h> // StreamWriterLE
 #include <string>
 #include <vector>
 namespace FBX {
    class Node;
 }
 class FBX::Node
 {
 public: // public data members
    // TODO: accessors
    std::string name; // node name
    std::vector<FBX::Property> properties; // node properties
    std::vector<FBX::Node> children; // child nodes
    // some nodes always pretend they have children...
    bool force_has_children = false;
 public: // constructors
    Node() = default;
    Node(const std::string& n) : name(n) {}
    // convenience template to construct with properties directly
    template <typename... More>
    Node(const std::string& n, const More... more)
        : name(n)
        { AddProperties(more...); }
 public: // functions to add properties or children
    // add a single property to the node
    template <typename T>
    void AddProperty(T value) {
        properties.emplace_back(value);
    }
    // convenience function to add multiple properties at once
    template <typename T, typename... More>
    void AddProperties(T value, More... more) {
        properties.emplace_back(value);
        AddProperties(more...);
    }
    void AddProperties() {}
    // add a child node directly
    void AddChild(const Node& node) { children.push_back(node); }
    // convenience function to add a child node with a single property
    template <typename... More>
    void AddChild(
        const std::string& name,
        More... more
    ) {
        FBX::Node c(name);
        c.AddProperties(more...);
        children.push_back(c);
    }
 public: // support specifically for dealing with Properties70 nodes
    // it really is simpler to make these all separate functions.
    // the versions with 'A' suffixes are for animatable properties.
    // those often follow a completely different format internally in FBX.
    void AddP70int(const std::string& name, int32_t value);
    void AddP70bool(const std::string& name, bool value);
    void AddP70double(const std::string& name, double value);
    void AddP70numberA(const std::string& name, double value);
    void AddP70color(const std::string& name, double r, double g, double b);
    void AddP70colorA(const std::string& name, double r, double g, double b);
    void AddP70vector(const std::string& name, double x, double y, double z);
    void AddP70vectorA(const std::string& name, double x, double y, double z);
    void AddP70string(const std::string& name, const std::string& value);
    void AddP70enum(const std::string& name, int32_t value);
    void AddP70time(const std::string& name, int64_t value);
    // template for custom P70 nodes.
    // anything that doesn't fit in the above can be created manually.
    template <typename... More>
    void AddP70(
        const std::string& name,
        const std::string& type,
        const std::string& type2,
        const std::string& flags,
        More... more
    ) {
        Node n("P");
        n.AddProperties(name, type, type2, flags, more...);
        AddChild(n);
    }
 public: // member functions for writing data to a file or stream
    // write the full node to the given file or stream
    void Dump(
        std::shared_ptr<Assimp::IOStream> outfile,
        bool binary, int indent
    );
    void Dump(Assimp::StreamWriterLE &s, bool binary, int indent);
    // these other functions are for writing data piece by piece.
    // they must be used carefully.
    // for usage examples see FBXExporter.cpp.
    void Begin(Assimp::StreamWriterLE &s, bool binary, int indent);
    void DumpProperties(Assimp::StreamWriterLE& s, bool binary, int indent);
    void EndProperties(Assimp::StreamWriterLE &s, bool binary, int indent);
    void EndProperties(
        Assimp::StreamWriterLE &s, bool binary, int indent,
        size_t num_properties
    );
    void BeginChildren(Assimp::StreamWriterLE &s, bool binary, int indent);
    void DumpChildren(Assimp::StreamWriterLE& s, bool binary, int indent);
    void End(
        Assimp::StreamWriterLE &s, bool binary, int indent,
        bool has_children
    );
 private: // internal functions used for writing
    void DumpBinary(Assimp::StreamWriterLE &s);
    void DumpAscii(Assimp::StreamWriterLE &s, int indent);
    void DumpAscii(std::ostream &s, int indent);
    void BeginBinary(Assimp::StreamWriterLE &s);
    void DumpPropertiesBinary(Assimp::StreamWriterLE& s);
    void EndPropertiesBinary(Assimp::StreamWriterLE &s);
    void EndPropertiesBinary(Assimp::StreamWriterLE &s, size_t num_properties);
    void DumpChildrenBinary(Assimp::StreamWriterLE& s);
    void EndBinary(Assimp::StreamWriterLE &s, bool has_children);
    void BeginAscii(std::ostream &s, int indent);
    void DumpPropertiesAscii(std::ostream &s, int indent);
    void BeginChildrenAscii(std::ostream &s, int indent);
    void DumpChildrenAscii(std::ostream &s, int indent);
    void EndAscii(std::ostream &s, int indent, bool has_children);
 private: // data used for binary dumps
    size_t start_pos; // starting position in stream
    size_t end_pos; // ending position in stream
    size_t property_start; // starting position of property section
 public: // static member functions
    // convenience function to create a node with a single property,
    // and write it to the stream.
    template <typename T>
    static void WritePropertyNode(
        const std::string& name,
        const T value,
        Assimp::StreamWriterLE& s,
        bool binary, int indent
    ) {
        FBX::Property p(value);
        FBX::Node node(name, p);
        node.Dump(s, binary, indent);
    }
    // convenience function to create and write a property node,
    // holding a single property which is an array of values.
    // does not copy the data, so is efficient for large arrays.
    static void WritePropertyNode(
        const std::string& name,
        const std::vector<double>& v,
        Assimp::StreamWriterLE& s,
        bool binary, int indent
    );
    // convenience function to create and write a property node,
    // holding a single property which is an array of values.
    // does not copy the data, so is efficient for large arrays.
    static void WritePropertyNode(
        const std::string& name,
        const std::vector<int32_t>& v,
        Assimp::StreamWriterLE& s,
        bool binary, int indent
    );
 private: // static helper functions
    static void WritePropertyNodeAscii(
        const std::string& name,
        const std::vector<double>& v,
        Assimp::StreamWriterLE& s,
        int indent
    );
    static void WritePropertyNodeAscii(
        const std::string& name,
        const std::vector<int32_t>& v,
        Assimp::StreamWriterLE& s,
        int indent
    );
    static void WritePropertyNodeBinary(
        const std::string& name,
        const std::vector<double>& v,
        Assimp::StreamWriterLE& s
    );
    static void WritePropertyNodeBinary(
        const std::string& name,
        const std::vector<int32_t>& v,
        Assimp::StreamWriterLE& s
    );
 };
 #endif // ASSIMP_BUILD_NO_FBX_EXPORTER
 #endif // AI_FBXEXPORTNODE_H_INC
--- a/code/FBXExportProperty.cpp
+++ b/code/FBXExportProperty.cpp
@ -0,0 +1,364 @@
 /*
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 Copyright (c) 2006-2018, assimp team
 All rights reserved.
 Redistribution and use of this software in source and binary forms,
 with or without modification, are permitted provided that the
 following conditions are met:
 * Redistributions of source code must retain the above
 copyright notice, this list of conditions and the
 following disclaimer.
 * Redistributions in binary form must reproduce the above
 copyright notice, this list of conditions and the
 following disclaimer in the documentation and/or other
 materials provided with the distribution.
 * Neither the name of the assimp team, nor the names of its
 contributors may be used to endorse or promote products
 derived from this software without specific prior
 written permission of the assimp team.
 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ----------------------------------------------------------------------
 */
 #ifndef ASSIMP_BUILD_NO_EXPORT
 #ifndef ASSIMP_BUILD_NO_FBX_EXPORTER
 #include "FBXExportProperty.h"
 #include <assimp/StreamWriter.h> // StreamWriterLE
 #include <assimp/Exceptional.h> // DeadlyExportError
 #include <string>
 #include <vector>
 #include <ostream>
 #include <locale>
 #include <sstream> // ostringstream
 // constructors for single element properties
 FBX::Property::Property(bool v)
    : type('C'), data(1)
 {
    data = {uint8_t(v)};
 }
 FBX::Property::Property(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)
 {
    uint8_t* d = data.data();
    (reinterpret_cast<int32_t*>(d))[0] = v;
 }
 FBX::Property::Property(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)
 {
    uint8_t* d = data.data();
    (reinterpret_cast<double*>(d))[0] = v;
 }
 FBX::Property::Property(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)
    : Property(std::string(c), raw)
 {}
 // strings can either be saved as "raw" (R) data, or "string" (S) data
 FBX::Property::Property(const std::string& s, bool raw)
    : 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)
    : type('R'), data(r)
 {}
 FBX::Property::Property(const std::vector<int32_t>& va)
    : 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]; }
 }
 FBX::Property::Property(const std::vector<int64_t>& va)
    : 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]; }
 }
 FBX::Property::Property(const std::vector<float>& va)
    : 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]; }
 }
 FBX::Property::Property(const std::vector<double>& va)
    : 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]; }
 }
 FBX::Property::Property(const aiMatrix4x4& vm)
    : 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];
        }
    }
 }
 // public member functions
 size_t FBX::Property::size()
 {
    switch (type) {
    case 'C': case 'Y': case 'I': case 'F': case 'D': case 'L':
        return data.size() + 1;
    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)
 {
    s.PutU1(type);
    uint8_t* d = data.data();
    size_t N;
    switch (type) {
    case 'C': s.PutU1(*(reinterpret_cast<uint8_t*>(d))); return;
    case 'Y': s.PutI2(*(reinterpret_cast<int16_t*>(d))); return;
    case 'I': s.PutI4(*(reinterpret_cast<int32_t*>(d))); return;
    case 'F': s.PutF4(*(reinterpret_cast<float*>(d))); return;
    case 'D': s.PutF8(*(reinterpret_cast<double*>(d))); return;
    case 'L': s.PutI8(*(reinterpret_cast<int64_t*>(d))); return;
    case 'S':
    case 'R':
        s.PutU4(uint32_t(data.size()));
        for (size_t i = 0; i < data.size(); ++i) { s.PutU1(data[i]); }
        return;
    case 'i':
        N = data.size() / 4;
        s.PutU4(uint32_t(N)); // number of elements
        s.PutU4(0); // no encoding (1 would be zip-compressed)
        // TODO: compress if large?
        s.PutU4(uint32_t(data.size())); // data size
        for (size_t i = 0; i < N; ++i) {
            s.PutI4((reinterpret_cast<int32_t*>(d))[i]);
        }
        return;
    case 'l':
        N = data.size() / 8;
        s.PutU4(uint32_t(N)); // number of elements
        s.PutU4(0); // no encoding (1 would be zip-compressed)
        // TODO: compress if large?
        s.PutU4(uint32_t(data.size())); // data size
        for (size_t i = 0; i < N; ++i) {
            s.PutI8((reinterpret_cast<int64_t*>(d))[i]);
        }
        return;
    case 'f':
        N = data.size() / 4;
        s.PutU4(uint32_t(N)); // number of elements
        s.PutU4(0); // no encoding (1 would be zip-compressed)
        // TODO: compress if large?
        s.PutU4(uint32_t(data.size())); // data size
        for (size_t i = 0; i < N; ++i) {
            s.PutF4((reinterpret_cast<float*>(d))[i]);
        }
        return;
    case 'd':
        N = data.size() / 8;
        s.PutU4(uint32_t(N)); // number of elements
        s.PutU4(0); // no encoding (1 would be zip-compressed)
        // TODO: compress if large?
        s.PutU4(uint32_t(data.size())); // data size
        for (size_t i = 0; i < N; ++i) {
            s.PutF8((reinterpret_cast<double*>(d))[i]);
        }
        return;
    default:
        std::ostringstream err;
        err << "Tried to dump property with invalid type '";
        err << type << "'!";
        throw DeadlyExportError(err.str());
    }
 }
 void FBX::Property::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
    DumpAscii(ss, indent);
    outstream.PutString(ss.str());
 }
 void FBX::Property::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;
    size_t swap = data.size();
    size_t count = 0;
    switch (type) {
    case 'C':
        if (*(reinterpret_cast<uint8_t*>(d))) { s << 'T'; }
        else { s << 'F'; }
        return;
    case 'Y': s << *(reinterpret_cast<int16_t*>(d)); return;
    case 'I': s << *(reinterpret_cast<int32_t*>(d)); return;
    case 'F': s << *(reinterpret_cast<float*>(d)); return;
    case 'D': s << *(reinterpret_cast<double*>(d)); return;
    case 'L': s << *(reinterpret_cast<int64_t*>(d)); return;
    case 'S':
        // first search to see if it has "\x00\x01" in it -
        // which separates fields which are reversed in the ascii version.
        // yeah.
        // FBX, yeah.
        for (size_t i = 0; i < data.size(); ++i) {
            if (data[i] == '\0') {
                swap = i;
                break;
            }
        }
    case 'R':
        s << '"';
        // we might as well check this now,
        // probably it will never happen
        for (size_t i = 0; i < data.size(); ++i) {
            char c = data[i];
            if (c == '"') {
                throw runtime_error("can't handle quotes in property string");
            }
        }
        // first write the SWAPPED member (if any)
        for (size_t i = swap + 2; i < data.size(); ++i) {
            char c = data[i];
            s << c;
        }
        // then a separator
        if (swap != data.size()) {
            s << "::";
        }
        // then the initial member
        for (size_t i = 0; i < swap; ++i) {
            char c = data[i];
            s << c;
        }
        s << '"';
        return;
    case 'i':
        N = data.size() / 4; // number of elements
        s << '*' << N << " {\n";
        for (int i = 0; i < indent + 1; ++i) { s << '\t'; }
        s << "a: ";
        for (size_t i = 0; i < N; ++i) {
            if (i > 0) { s << ','; }
            if (count++ > 120) { s << '\n'; count = 0; }
            s << (reinterpret_cast<int32_t*>(d))[i];
        }
        s << '\n';
        for (int i = 0; i < indent; ++i) { s << '\t'; }
        s << "} ";
        return;
    case 'l':
        N = data.size() / 8;
        s << '*' << N << " {\n";
        for (int i = 0; i < indent + 1; ++i) { s << '\t'; }
        s << "a: ";
        for (size_t i = 0; i < N; ++i) {
            if (i > 0) { s << ','; }
            if (count++ > 120) { s << '\n'; count = 0; }
            s << (reinterpret_cast<int64_t*>(d))[i];
        }
        s << '\n';
        for (int i = 0; i < indent; ++i) { s << '\t'; }
        s << "} ";
        return;
    case 'f':
        N = data.size() / 4;
        s << '*' << N << " {\n";
        for (int i = 0; i < indent + 1; ++i) { s << '\t'; }
        s << "a: ";
        for (size_t i = 0; i < N; ++i) {
            if (i > 0) { s << ','; }
            if (count++ > 120) { s << '\n'; count = 0; }
            s << (reinterpret_cast<float*>(d))[i];
        }
        s << '\n';
        for (int i = 0; i < indent; ++i) { s << '\t'; }
        s << "} ";
        return;
    case 'd':
        N = data.size() / 8;
        s << '*' << N << " {\n";
        for (int i = 0; i < indent + 1; ++i) { s << '\t'; }
        s << "a: ";
        // set precision to something that can handle doubles
        s.precision(15);
        for (size_t i = 0; i < N; ++i) {
            if (i > 0) { s << ','; }
            if (count++ > 120) { s << '\n'; count = 0; }
            s << (reinterpret_cast<double*>(d))[i];
        }
        s << '\n';
        for (int i = 0; i < indent; ++i) { s << '\t'; }
        s << "} ";
        return;
    default:
        std::ostringstream err;
        err << "Tried to dump property with invalid type '";
        err << type << "'!";
        throw runtime_error(err.str());
    }
 }
 #endif // ASSIMP_BUILD_NO_FBX_EXPORTER
 #endif // ASSIMP_BUILD_NO_EXPORT
--- a/code/FBXExportProperty.h
+++ b/code/FBXExportProperty.h
@ -0,0 +1,129 @@
 /*
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 Copyright (c) 2006-2018, assimp team
 All rights reserved.
 Redistribution and use of this software in source and binary forms,
 with or without modification, are permitted provided that the
 following conditions are met:
 * Redistributions of source code must retain the above
 copyright notice, this list of conditions and the
 following disclaimer.
 * Redistributions in binary form must reproduce the above
 copyright notice, this list of conditions and the
 following disclaimer in the documentation and/or other
 materials provided with the distribution.
 * Neither the name of the assimp team, nor the names of its
 contributors may be used to endorse or promote products
 derived from this software without specific prior
 written permission of the assimp team.
 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ----------------------------------------------------------------------
 */
 /** @file FBXExportProperty.h
 * Declares the FBX::Property helper class for fbx export.
 */
 #ifndef AI_FBXEXPORTPROPERTY_H_INC
 #define AI_FBXEXPORTPROPERTY_H_INC
 #ifndef ASSIMP_BUILD_NO_FBX_EXPORTER
 #include <assimp/types.h> // aiMatrix4x4
 #include <assimp/StreamWriter.h> // StreamWriterLE
 #include <string>
 #include <vector>
 #include <ostream>
 #include <type_traits> // is_void
 namespace FBX {
    class Property;
 }
 /** FBX::Property
 *
 *  Holds a value of any of FBX's recognized types,
 *  each represented by a particular one-character code.
 *  C : 1-byte uint8, usually 0x00 or 0x01 to represent boolean false and true
 *  Y : 2-byte int16
 *  I : 4-byte int32
 *  F : 4-byte float
 *  D : 8-byte double
 *  L : 8-byte int64
 *  i : array of int32
 *  f : array of float
 *  d : array of double
 *  l : array of int64
 *  b : array of 1-byte booleans (0x00 or 0x01)
 *  S : string (array of 1-byte char)
 *  R : raw data (array of bytes)
 */
 class FBX::Property
 {
 public:
    // constructors for basic types.
    // all explicit to avoid accidental typecasting
    explicit Property(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 Property(int32_t v);
    explicit Property(float v);
    explicit Property(double v);
    explicit Property(int64_t v);
    // strings can either be stored as 'R' (raw) or 'S' (string) type
    explicit Property(const char* c, bool raw=false);
    explicit Property(const std::string& s, bool raw=false);
    explicit Property(const std::vector<uint8_t>& r);
    explicit Property(const std::vector<int32_t>& va);
    explicit Property(const std::vector<int64_t>& va);
    explicit Property(const std::vector<double>& va);
    explicit Property(const std::vector<float>& va);
    explicit Property(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') {
        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
    // the size of this property node in a binary file, in bytes
    size_t size();
    // write this property node as binary data to the given stream
    void DumpBinary(Assimp::StreamWriterLE &s);
    void DumpAscii(Assimp::StreamWriterLE &s, int indent=0);
    void DumpAscii(std::ostream &s, int indent=0);
    // note: make sure the ostream is in classic "C" locale
 private:
    char type;
    std::vector<uint8_t> data;
 };
 #endif // ASSIMP_BUILD_NO_FBX_EXPORTER
 #endif // AI_FBXEXPORTPROPERTY_H_INC
--- a/code/FBXExporter.cpp
+++ b/code/FBXExporter.cpp
--- a/code/FBXExporter.h
+++ b/code/FBXExporter.h
@ -0,0 +1,178 @@
 /*
 Open Asset Import Library (assimp)
 ----------------------------------------------------------------------
 Copyright (c) 2006-2018, assimp team
 All rights reserved.
 Redistribution and use of this software in source and binary forms,
 with or without modification, are permitted provided that the
 following conditions are met:
 * Redistributions of source code must retain the above
 copyright notice, this list of conditions and the
 following disclaimer.
 * Redistributions in binary form must reproduce the above
 copyright notice, this list of conditions and the
 following disclaimer in the documentation and/or other
 materials provided with the distribution.
 * Neither the name of the assimp team, nor the names of its
 contributors may be used to endorse or promote products
 derived from this software without specific prior
 written permission of the assimp team.
 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ----------------------------------------------------------------------
 */
 /** @file FBXExporter.h
 * Declares the exporter class to write a scene to an fbx file
 */
 #ifndef AI_FBXEXPORTER_H_INC
 #define AI_FBXEXPORTER_H_INC
 #ifndef ASSIMP_BUILD_NO_FBX_EXPORTER
 #include "FBXExportNode.h" // FBX::Node
 #include "FBXCommon.h" // FBX::TransformInheritance
 #include <assimp/types.h>
 //#include <assimp/material.h>
 #include <assimp/StreamWriter.h> // StreamWriterLE
 #include <assimp/Exceptional.h> // DeadlyExportError
 #include <vector>
 #include <map>
 #include <unordered_set>
 #include <memory> // shared_ptr
 #include <sstream> // stringstream
 struct aiScene;
 struct aiNode;
 //struct aiMaterial;
 namespace Assimp
 {
    class IOSystem;
    class IOStream;
    class ExportProperties;
    // ---------------------------------------------------------------------
    /** Helper class to export a given scene to an FBX file. */
    // ---------------------------------------------------------------------
    class FBXExporter
    {
    public:
        /// Constructor for a specific scene to export
        FBXExporter(const aiScene* pScene, const ExportProperties* pProperties);
        // call one of these methods to export
        void ExportBinary(const char* pFile, IOSystem* pIOSystem);
        void ExportAscii(const char* pFile, IOSystem* pIOSystem);
    private:
        bool binary; // whether current export is in binary or ascii format
        const aiScene* mScene; // the scene to export
        const ExportProperties* mProperties; // currently unused
        std::shared_ptr<IOStream> outfile; // file to write to
        std::vector<FBX::Node> connections; // conection storage
        std::vector<int64_t> mesh_uids;
        std::vector<int64_t> material_uids;
        std::map<const aiNode*,int64_t> node_uids;
        // this crude unique-ID system is actually fine
        int64_t last_uid = 999999;
        int64_t generate_uid() { return ++last_uid; }
        // binary files have a specific header and footer,
        // in addition to the actual data
        void WriteBinaryHeader();
        void WriteBinaryFooter();
        // ascii files have a comment at the top
        void WriteAsciiHeader();
        // WriteAllNodes does the actual export.
        // It just calls all the Write<Section> methods below in order.
        void WriteAllNodes();
        // Methods to write individual sections.
        // The order here matches the order inside an FBX file.
        // Each method corresponds to a top-level FBX section,
        // except WriteHeader which also includes some binary-only sections
        // and WriteFooter which is binary data only.
        void WriteHeaderExtension();
        // WriteFileId(); // binary-only, included in WriteHeader
        // WriteCreationTime(); // binary-only, included in WriteHeader
        // WriteCreator(); // binary-only, included in WriteHeader
        void WriteGlobalSettings();
        void WriteDocuments();
        void WriteReferences();
        void WriteDefinitions();
        void WriteObjects();
        void WriteConnections();
        // WriteTakes(); // deprecated since at least 2015 (fbx 7.4)
        // helpers
        void WriteAsciiSectionHeader(const std::string& title);
        void WriteModelNodes(
            Assimp::StreamWriterLE& s,
            const aiNode* node,
            int64_t parent_uid,
            const std::unordered_set<const aiNode*>& limbnodes
        );
        void WriteModelNodes( // usually don't call this directly
            StreamWriterLE& s,
            const aiNode* node,
            int64_t parent_uid,
            const std::unordered_set<const aiNode*>& limbnodes,
            std::vector<std::pair<std::string,aiVector3D>>& transform_chain
        );
        void WriteModelNode( // nor this
            StreamWriterLE& s,
            bool binary,
            const aiNode* node,
            int64_t node_uid,
            const std::string& type,
            const std::vector<std::pair<std::string,aiVector3D>>& xfm_chain,
            FBX::TransformInheritance ti_type=FBX::TransformInheritance_RSrs
        );
        void WriteAnimationCurveNode(
            StreamWriterLE& outstream,
            int64_t uid,
            std::string name, // "T", "R", or "S"
            aiVector3D default_value,
            std::string property_name, // "Lcl Translation" etc
            int64_t animation_layer_uid,
            int64_t node_uid
        );
        void WriteAnimationCurve(
            StreamWriterLE& outstream,
            double default_value,
            const std::vector<int64_t>& times,
            const std::vector<float>& values,
            int64_t curvenode_id,
            const std::string& property_link // "d|X", "d|Y", etc
        );
    };
 }
 #endif // ASSIMP_BUILD_NO_FBX_EXPORTER
 #endif // AI_FBXEXPORTER_H_INC
--- a/code/FBXMaterial.cpp
+++ b/code/FBXMaterial.cpp
@ -54,6 +54,8 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "FBXProperties.h"
 #include <assimp/ByteSwapper.h>
 #include <algorithm> // std::transform
 namespace Assimp {
 namespace FBX {
@ -82,11 +84,12 @@ Material::Material(uint64_t id, const Element& element, const Document& doc, con
    std::string templateName;
-    const char* const sh = shading.c_str();
+    // lower-case shading because Blender (for example) writes "Phong"
-    if(!strcmp(sh,"phong")) {
+    std::transform(shading.begin(), shading.end(), shading.begin(), ::tolower);
    if(shading == "phong") {
        templateName = "Material.FbxSurfacePhong";
    }
-    else if(!strcmp(sh,"lambert")) {
+    else if(shading == "lambert") {
        templateName = "Material.FbxSurfaceLambert";
    }
    else {
--- a/code/FBXMeshGeometry.cpp
+++ b/code/FBXMeshGeometry.cpp
@ -79,14 +79,13 @@ Geometry::Geometry(uint64_t id, const Element& element, const std::string& name,
 // ------------------------------------------------------------------------------------------------
 Geometry::~Geometry()
 {
-
+    // empty
 }
 const Skin* Geometry::DeformerSkin() const {
    return skin;
 }
 // ------------------------------------------------------------------------------------------------
 MeshGeometry::MeshGeometry(uint64_t id, const Element& element, const std::string& name, const Document& doc)
 : Geometry(id, element,name, doc)
@ -186,9 +185,8 @@ MeshGeometry::MeshGeometry(uint64_t id, const Element& element, const std::strin
 }
 // ------------------------------------------------------------------------------------------------
-MeshGeometry::~MeshGeometry()
+MeshGeometry::~MeshGeometry() {
-{
+    // empty
 }
 // ------------------------------------------------------------------------------------------------
@ -308,7 +306,6 @@ void MeshGeometry::ReadLayerElement(const Scope& layerElement)
        << type << ", index: " << typedIndex);
 }
 // ------------------------------------------------------------------------------------------------
 void MeshGeometry::ReadVertexData(const std::string& type, int index, const Scope& source)
 {
@ -412,7 +409,6 @@ void MeshGeometry::ReadVertexData(const std::string& type, int index, const Scop
    }
 }
 // ------------------------------------------------------------------------------------------------
 // Lengthy utility function to read and resolve a FBX vertex data array - that is, the
 // output is in polygon vertex order. This logic is used for reading normals, UVs, colors,
@ -428,16 +424,19 @@ void ResolveVertexDataArray(std::vector<T>& data_out, const Scope& source,
    const std::vector<unsigned int>& mapping_offsets,
    const std::vector<unsigned int>& mappings)
 {
    bool isDirect = ReferenceInformationType == "Direct";
    bool isIndexToDirect = ReferenceInformationType == "IndexToDirect";
    // fall-back to direct data if there is no index data element
    if ( isIndexToDirect && !HasElement( source, indexDataElementName ) ) {
        isDirect = true;
        isIndexToDirect = false;
    }
    // handle permutations of Mapping and Reference type - it would be nice to
    // deal with this more elegantly and with less redundancy, but right
    // now it seems unavoidable.
-    if (MappingInformationType == "ByVertice" && ReferenceInformationType == "Direct") {
+    if (MappingInformationType == "ByVertice" && isDirect) {
        if ( !HasElement( source, indexDataElementName ) ) {
            return;
        }
        std::vector<T> tempData;
 		ParseVectorDataArray(tempData, GetRequiredElement(source, dataElementName));
@ -450,14 +449,11 @@ void ResolveVertexDataArray(std::vector<T>& data_out, const Scope& source,
            }
        }
    }
-    else if (MappingInformationType == "ByVertice" && ReferenceInformationType == "IndexToDirect") {
+    else if (MappingInformationType == "ByVertice" && isIndexToDirect) {
 		std::vector<T> tempData;
 		ParseVectorDataArray(tempData, GetRequiredElement(source, dataElementName));
        data_out.resize(vertex_count);
        if ( !HasElement( source, indexDataElementName ) ) {
            return;
        }
        std::vector<int> uvIndices;
        ParseVectorDataArray(uvIndices,GetRequiredElement(source,indexDataElementName));
@ -472,7 +468,7 @@ void ResolveVertexDataArray(std::vector<T>& data_out, const Scope& source,
            }
        }
    }
-    else if (MappingInformationType == "ByPolygonVertex" && ReferenceInformationType == "Direct") {
+    else if (MappingInformationType == "ByPolygonVertex" && isDirect) {
 		std::vector<T> tempData;
 		ParseVectorDataArray(tempData, GetRequiredElement(source, dataElementName));
@ -485,7 +481,7 @@ void ResolveVertexDataArray(std::vector<T>& data_out, const Scope& source,
 		data_out.swap(tempData);
    }
-    else if (MappingInformationType == "ByPolygonVertex" && ReferenceInformationType == "IndexToDirect") {
+    else if (MappingInformationType == "ByPolygonVertex" && isIndexToDirect) {
 		std::vector<T> tempData;
 		ParseVectorDataArray(tempData, GetRequiredElement(source, dataElementName));
@ -499,9 +495,14 @@ void ResolveVertexDataArray(std::vector<T>& data_out, const Scope& source,
            return;
        }
        const T empty;
        unsigned int next = 0;
        for(int i : uvIndices) {
-			if (static_cast<size_t>(i) >= tempData.size()) {
+            if ( -1 == i ) {
                data_out[ next++ ] = empty;
                continue;
            }
            if (static_cast<size_t>(i) >= tempData.size()) {
                DOMError("index out of range",&GetRequiredElement(source,indexDataElementName));
            }
@ -528,7 +529,6 @@ void MeshGeometry::ReadVertexDataNormals(std::vector<aiVector3D>& normals_out, c
        m_mappings);
 }
 // ------------------------------------------------------------------------------------------------
 void MeshGeometry::ReadVertexDataUV(std::vector<aiVector2D>& uv_out, const Scope& source,
    const std::string& MappingInformationType,
@ -543,7 +543,6 @@ void MeshGeometry::ReadVertexDataUV(std::vector<aiVector2D>& uv_out, const Scope
        m_mappings);
 }
 // ------------------------------------------------------------------------------------------------
 void MeshGeometry::ReadVertexDataColors(std::vector<aiColor4D>& colors_out, const Scope& source,
    const std::string& MappingInformationType,
--- a/code/FBXMeshGeometry.h
+++ b/code/FBXMeshGeometry.h
@ -68,7 +68,6 @@ private:
    const Skin* skin;
 };
 typedef std::vector<int> MatIndexArray;
@ -95,8 +94,8 @@ public:
    *  if no tangents are specified */
    const std::vector<aiVector3D>& GetTangents() const;
-    /** Get a list of all vertex binormals or an empty array
+    /** Get a list of all vertex bi-normals or an empty array
-    *  if no binormals are specified */
+    *  if no bi-normals are specified */
    const std::vector<aiVector3D>& GetBinormals() const;
    /** Return list of faces - each entry denotes a face and specifies
--- a/code/FileSystemFilter.h
+++ b/code/FileSystemFilter.h
@ -42,13 +42,14 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *  Implements a filter system to filter calls to Exists() and Open()
 *  in order to improve the success rate of file opening ...
 */
 #pragma once
 #ifndef AI_FILESYSTEMFILTER_H_INC
 #define AI_FILESYSTEMFILTER_H_INC
-#include "../include/assimp/IOSystem.hpp"
+#include <assimp/IOSystem.hpp>
-#include "../include/assimp/DefaultLogger.hpp"
+#include <assimp/DefaultLogger.hpp>
-#include "../include/assimp/fast_atof.h"
+#include <assimp/fast_atof.h>
-#include "../include/assimp/ParsingUtils.h"
+#include <assimp/ParsingUtils.h>
 namespace Assimp    {
@ -64,90 +65,89 @@ class FileSystemFilter : public IOSystem
 public:
    /** Constructor. */
    FileSystemFilter(const std::string& file, IOSystem* old)
-        : wrapped  (old)
+    : mWrapped  (old)
-        , src_file (file)
+    , mSrc_file(file)
-        , sep(wrapped->getOsSeparator())
+    , sep(mWrapped->getOsSeparator()) {
-    {
+        ai_assert(nullptr != mWrapped);
        ai_assert(NULL != wrapped);
        // Determine base directory
-        base = src_file;
+        mBase = mSrc_file;
        std::string::size_type ss2;
-        if (std::string::npos != (ss2 = base.find_last_of("\\/")))  {
+        if (std::string::npos != (ss2 = mBase.find_last_of("\\/")))  {
-            base.erase(ss2,base.length()-ss2);
+            mBase.erase(ss2,mBase.length()-ss2);
-        }
+        } else {
-        else {
+            mBase = "";
            base = "";
        //  return;
        }
        // make sure the directory is terminated properly
        char s;
-        if (base.length() == 0) {
+        if ( mBase.empty() ) {
-            base = ".";
+            mBase = ".";
-            base += getOsSeparator();
+            mBase += getOsSeparator();
-        }
+        } else if ((s = *(mBase.end()-1)) != '\\' && s != '/') {
-        else if ((s = *(base.end()-1)) != '\\' && s != '/') {
+            mBase += getOsSeparator();
            base += getOsSeparator();
        }
-        DefaultLogger::get()->info("Import root directory is \'" + base + "\'");
+        DefaultLogger::get()->info("Import root directory is \'" + mBase + "\'");
    }
    /** Destructor. */
-    ~FileSystemFilter()
+    ~FileSystemFilter() {
-    {
+        // empty
        // haha
    }
    // -------------------------------------------------------------------
    /** Tests for the existence of a file at the given path. */
-    bool Exists( const char* pFile) const
+    bool Exists( const char* pFile) const {
-    {
+        ai_assert( nullptr != mWrapped );
        std::string tmp = pFile;
        // Currently this IOSystem is also used to open THE ONE FILE.
-        if (tmp != src_file)    {
+        if (tmp != mSrc_file)    {
            BuildPath(tmp);
            Cleanup(tmp);
        }
-        return wrapped->Exists(tmp);
+        return mWrapped->Exists(tmp);
    }
    // -------------------------------------------------------------------
    /** Returns the directory separator. */
-    char getOsSeparator() const
+    char getOsSeparator() const {
    {
        return sep;
    }
    // -------------------------------------------------------------------
    /** Open a new file with a given path. */
-    IOStream* Open( const char* pFile, const char* pMode = "rb")
+    IOStream* Open( const char* pFile, const char* pMode = "rb") {
-    {
+        ai_assert( nullptr != mWrapped );
-        ai_assert(pFile);
+        if ( nullptr == pFile || nullptr == pMode ) {
-        ai_assert(pMode);
+            return nullptr;
        }
        ai_assert( nullptr != pFile );
        ai_assert( nullptr != pMode );
        // First try the unchanged path
-        IOStream* s = wrapped->Open(pFile,pMode);
+        IOStream* s = mWrapped->Open(pFile,pMode);
-        if (!s) {
+        if (nullptr == s) {
            std::string tmp = pFile;
            // Try to convert between absolute and relative paths
            BuildPath(tmp);
-            s = wrapped->Open(tmp,pMode);
+            s = mWrapped->Open(tmp,pMode);
-            if (!s) {
+            if (nullptr == s) {
                // Finally, look for typical issues with paths
                // and try to correct them. This is our last
                // resort.
                tmp = pFile;
                Cleanup(tmp);
                BuildPath(tmp);
-                s = wrapped->Open(tmp,pMode);
+                s = mWrapped->Open(tmp,pMode);
            }
        }
@ -156,27 +156,75 @@ public:
    // -------------------------------------------------------------------
    /** Closes the given file and releases all resources associated with it. */
-    void Close( IOStream* pFile)
+    void Close( IOStream* pFile) {
-    {
+        ai_assert( nullptr != mWrapped );
-        return wrapped->Close(pFile);
+        return mWrapped->Close(pFile);
    }
    // -------------------------------------------------------------------
    /** Compare two paths */
-    bool ComparePaths (const char* one, const char* second) const
+    bool ComparePaths (const char* one, const char* second) const {
-    {
+        ai_assert( nullptr != mWrapped );
-        return wrapped->ComparePaths (one,second);
+        return mWrapped->ComparePaths (one,second);
    }
    // -------------------------------------------------------------------
    /** Pushes a new directory onto the directory stack. */
    bool PushDirectory(const std::string &path ) {
        ai_assert( nullptr != mWrapped );
        return mWrapped->PushDirectory(path);
    }
    // -------------------------------------------------------------------
    /** Returns the top directory from the stack. */
    const std::string &CurrentDirectory() const {
        ai_assert( nullptr != mWrapped );
        return mWrapped->CurrentDirectory();
    }
    // -------------------------------------------------------------------
    /** Returns the number of directories stored on the stack. */
    size_t StackSize() const {
        ai_assert( nullptr != mWrapped );
        return mWrapped->StackSize();
    }
    // -------------------------------------------------------------------
    /** Pops the top directory from the stack. */
    bool PopDirectory() {
        ai_assert( nullptr != mWrapped );
        return mWrapped->PopDirectory();
    }
    // -------------------------------------------------------------------
    /** Creates an new directory at the given path. */
    bool CreateDirectory(const std::string &path) {
        ai_assert( nullptr != mWrapped );
        return mWrapped->CreateDirectory(path);
    }
    // -------------------------------------------------------------------
    /** Will change the current directory to the given path. */
    bool ChangeDirectory(const std::string &path) {
        ai_assert( nullptr != mWrapped );
        return mWrapped->ChangeDirectory(path);
    }
    // -------------------------------------------------------------------
    /** Delete file. */
    bool DeleteFile(const std::string &file) {
        ai_assert( nullptr != mWrapped );
        return mWrapped->DeleteFile(file);
    }
 private:
    // -------------------------------------------------------------------
    /** Build a valid path from a given relative or absolute path.
     */
-    void BuildPath (std::string& in) const
+    void BuildPath (std::string& in) const {
-    {
+        ai_assert( nullptr != mWrapped );
        // if we can already access the file, great.
-        if (in.length() < 3 || wrapped->Exists(in)) {
+        if (in.length() < 3 || mWrapped->Exists(in)) {
            return;
        }
@ -184,8 +232,8 @@ private:
        if (in[1] != ':') {
            // append base path and try
-            const std::string tmp = base + in;
+            const std::string tmp = mBase + in;
-            if (wrapped->Exists(tmp)) {
+            if (mWrapped->Exists(tmp)) {
                in = tmp;
                return;
            }
@ -207,7 +255,7 @@ private:
            std::string::size_type last_dirsep = std::string::npos;
            while(true) {
-                tmp = base;
+                tmp = mBase;
                tmp += sep;
                std::string::size_type dirsep = in.rfind('/', last_dirsep);
@ -223,7 +271,7 @@ private:
                last_dirsep = dirsep-1;
                tmp += in.substr(dirsep+1, in.length()-pos);
-                if (wrapped->Exists(tmp)) {
+                if (mWrapped->Exists(tmp)) {
                    in = tmp;
                    return;
                }
@ -236,15 +284,14 @@ private:
    // -------------------------------------------------------------------
    /** Cleanup the given path
     */
-    void Cleanup (std::string& in) const
+    void Cleanup (std::string& in) const {
    {
        char last = 0;
        if(in.empty()) {
            return;
        }
        // Remove a very common issue when we're parsing file names: spaces at the
        // beginning of the path.
        char last = 0;
        std::string::iterator it = in.begin();
        while (IsSpaceOrNewLine( *it ))++it;
        if (it != in.begin()) {
@ -274,9 +321,7 @@ private:
                    it = in.erase(it);
                    --it;
                }
-            }
+            } else if (*it == '%' && in.end() - it > 2) {
            else if (*it == '%' && in.end() - it > 2) {
                // Hex sequence in URIs
                if( IsHex((&*it)[0]) && IsHex((&*it)[1]) ) {
                    *it = HexOctetToDecimal(&*it);
@ -290,8 +335,8 @@ private:
    }
 private:
-    IOSystem* wrapped;
+    IOSystem *mWrapped;
-    std::string src_file, base;
+    std::string mSrc_file, mBase;
    char sep;
 };
--- a/code/FindInstancesProcess.h
+++ b/code/FindInstancesProcess.h
@ -60,9 +60,9 @@ namespace Assimp    {
 *  @param in Input mesh
 *  @return Hash.
 */
-inline uint64_t GetMeshHash(aiMesh* in)
+inline
-{
+uint64_t GetMeshHash(aiMesh* in) {
-    ai_assert(NULL != in);
+    ai_assert(nullptr != in);
    // ... get an unique value representing the vertex format of the mesh
    const unsigned int fhash = GetMeshVFormatUnique(in);
@ -78,14 +78,14 @@ inline uint64_t GetMeshHash(aiMesh* in)
 /** @brief Perform a component-wise comparison of two arrays
 *
 *  @param first First array
- *  @param second Second aray
+ *  @param second Second array
 *  @param size Size of both arrays
 *  @param e Epsilon
 *  @return true if the arrays are identical
 */
-inline bool CompareArrays(const aiVector3D* first, const aiVector3D* second,
+inline
-    unsigned int size, float e)
+bool CompareArrays(const aiVector3D* first, const aiVector3D* second,
-{
+        unsigned int size, float e) {
    for (const aiVector3D* end = first+size; first != end; ++first,++second) {
        if ( (*first - *second).SquareLength() >= e)
            return false;
--- a/code/IRRLoader.cpp
+++ b/code/IRRLoader.cpp
@ -100,26 +100,22 @@ IRRImporter::~IRRImporter()
 // ------------------------------------------------------------------------------------------------
 // Returns whether the class can handle the format of the given file.
-bool IRRImporter::CanRead( const std::string& pFile, IOSystem* pIOHandler, bool checkSig) const
+bool IRRImporter::CanRead( const std::string& pFile, IOSystem* pIOHandler, bool checkSig) const {
 {
    /* NOTE: A simple check for the file extension is not enough
     * here. Irrmesh and irr are easy, but xml is too generic
     * and could be collada, too. So we need to open the file and
     * search for typical tokens.
     */
    const std::string extension = GetExtension(pFile);
-
+    if ( extension == "irr" ) {
-    if (extension == "irr")return true;
+        return true;
-    else if (extension == "xml" || checkSig)
+    } else if (extension == "xml" || checkSig) {
    {
        /*  If CanRead() is called in order to check whether we
         *  support a specific file extension in general pIOHandler
         *  might be NULL and it's our duty to return true here.
         */
-        if (!pIOHandler)return true;
+        if ( nullptr == pIOHandler ) {
            return true;
        }
        const char* tokens[] = {"irr_scene"};
        return SearchFileHeaderForToken(pIOHandler,pFile,tokens,1);
    }
    return false;
 }
--- a/code/Importer.cpp
+++ b/code/Importer.cpp
@ -190,7 +190,7 @@ Importer::~Importer()
    delete pimpl->mIOHandler;
    delete pimpl->mProgressHandler;
-    // Kill imported scene. Destructors should do that recursivly
+    // Kill imported scene. Destructor's should do that recursively
    delete pimpl->mScene;
    // Delete shared post-processing data
@ -200,18 +200,6 @@ Importer::~Importer()
    delete pimpl;
 }
 // ------------------------------------------------------------------------------------------------
 // Copy constructor - copies the config of another Importer, not the scene
 Importer::Importer(const Importer &other)
 	: pimpl(NULL) {
    new(this) Importer();
    pimpl->mIntProperties    = other.pimpl->mIntProperties;
    pimpl->mFloatProperties  = other.pimpl->mFloatProperties;
    pimpl->mStringProperties = other.pimpl->mStringProperties;
    pimpl->mMatrixProperties = other.pimpl->mMatrixProperties;
 }
 // ------------------------------------------------------------------------------------------------
 // Register a custom post-processing step
 aiReturn Importer::RegisterPPStep(BaseProcess* pImp)
@ -634,7 +622,6 @@ const aiScene* Importer::ReadFile( const char* _pFile, unsigned int pFlags)
            if (s != std::string::npos) {
                DefaultLogger::get()->info("File extension not known, trying signature-based detection");
                for( unsigned int a = 0; a < pimpl->mImporter.size(); a++)  {
                    if( pimpl->mImporter[a]->CanRead( pFile, pimpl->mIOHandler, true)) {
                        imp = pimpl->mImporter[a];
                        break;
@ -959,6 +946,7 @@ BaseImporter* Importer::GetImporter (const char* szExtension) const
 size_t Importer::GetImporterIndex (const char* szExtension) const
 {
    ai_assert(szExtension);
    ASSIMP_BEGIN_EXCEPTION_REGION();
    // skip over wildcard and dot characters at string head --
--- a/code/Importer/IFC/IFCLoader.cpp
+++ b/code/Importer/IFC/IFCLoader.cpp
@ -141,7 +141,8 @@ bool IFCImporter::CanRead( const std::string& pFile, IOSystem* pIOHandler, bool
        // it is only unambiguous as long as we don't support any further
        // file formats with STEP as their encoding.
        const char* tokens[] = {"ISO-10303-21"};
-        return SearchFileHeaderForToken(pIOHandler,pFile,tokens,1);
+        const bool found( SearchFileHeaderForToken( pIOHandler, pFile, tokens, 1 ) );
        return found;
    }
    return false;
 }
@ -582,9 +583,8 @@ typedef std::map<std::string, std::string> Metadata;
 // ------------------------------------------------------------------------------------------------
 void ProcessMetadata(const Schema_2x3::ListOf< Schema_2x3::Lazy< Schema_2x3::IfcProperty >, 1, 0 >& set, ConversionData& conv, Metadata& properties,
-    const std::string& prefix = "",
+        const std::string& prefix = "",
-    unsigned int nest = 0)
+        unsigned int nest = 0) {
 {
    for(const Schema_2x3::IfcProperty& property : set) {
        const std::string& key = prefix.length() > 0 ? (prefix + "." + property.Name) : property.Name;
        if (const Schema_2x3::IfcPropertySingleValue* const singleValue = property.ToPtr<Schema_2x3::IfcPropertySingleValue>()) {
--- a/code/Importer/IFC/IFCReaderGen_4.cpp
+++ b/code/Importer/IFC/IFCReaderGen_4.cpp
@ -40,13 +40,14 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 /** MACHINE-GENERATED by scripts/ICFImporter/CppGenerator.py */
 #include "AssimpPCH.h"
 #ifndef ASSIMP_BUILD_NO_IFC_IMPORTER
-#include "IFCReaderGen.h"
+#include "AssimpPCH.h"
 #include "IFCReaderGen4.h"
 namespace Assimp {
 using namespace IFC;
 using namespace ::Assimp::IFC::Schema_4;
 namespace {
--- a/code/Importer/IFC/IFCReaderGen_4.h
+++ b/code/Importer/IFC/IFCReaderGen_4.h
--- a/code/LWOLoader.cpp
+++ b/code/LWOLoader.cpp
@ -432,7 +432,6 @@ void LWOImporter::InternReadFile( const std::string& pFile,
        unsigned int num = static_cast<unsigned int>(apcMeshes.size() - meshStart);
        if (layer.mName != "<LWODefault>" || num > 0) {
            aiNode* pcNode = new aiNode();
            apcNodes[layer.mIndex] = pcNode;
            pcNode->mName.Set(layer.mName);
            pcNode->mParent = (aiNode*)&layer;
            pcNode->mNumMeshes = num;
@ -442,6 +441,7 @@ void LWOImporter::InternReadFile( const std::string& pFile,
                for (unsigned int p = 0; p < pcNode->mNumMeshes;++p)
                    pcNode->mMeshes[p] = p + meshStart;
            }
            apcNodes[layer.mIndex] = pcNode;
        }
    }
@ -584,7 +584,7 @@ void LWOImporter::GenerateNodeGraph(std::map<uint16_t,aiNode*>& apcNodes)
    //Set parent of all children, inserting pivots
    //std::cout << "Set parent of all children" << std::endl;
    std::map<uint16_t, aiNode*> mapPivot;
-    for (std::map<uint16_t,aiNode*>::iterator itapcNodes = apcNodes.begin(); itapcNodes != apcNodes.end(); ++itapcNodes) {
+    for (auto itapcNodes = apcNodes.begin(); itapcNodes != apcNodes.end(); ++itapcNodes) {
        //Get the parent index
        LWO::Layer* nodeLayer = (LWO::Layer*)(itapcNodes->second->mParent);
@ -593,7 +593,6 @@ void LWOImporter::GenerateNodeGraph(std::map<uint16_t,aiNode*>& apcNodes)
        //Create pivot node, store it into the pivot map, and set the parent as the pivot
        aiNode* pivotNode = new aiNode();
        pivotNode->mName.Set("Pivot-"+std::string(itapcNodes->second->mName.data));
        mapPivot[-(itapcNodes->first+2)] = pivotNode;
        itapcNodes->second->mParent = pivotNode;
        //Look for the parent node to attach the pivot to
@ -611,18 +610,19 @@ void LWOImporter::GenerateNodeGraph(std::map<uint16_t,aiNode*>& apcNodes)
        pivotNode->mTransformation.a4 = nodeLayer->mPivot.x;
        pivotNode->mTransformation.b4 = nodeLayer->mPivot.y;
        pivotNode->mTransformation.c4 = nodeLayer->mPivot.z;
        mapPivot[-(itapcNodes->first+2)] = pivotNode;
    }
    //Merge pivot map into node map
    //std::cout << "Merge pivot map into node map" << std::endl;
-    for (std::map<uint16_t, aiNode*>::iterator itMapPivot = mapPivot.begin(); itMapPivot != mapPivot.end(); ++itMapPivot) {
+    for (auto itMapPivot = mapPivot.begin(); itMapPivot != mapPivot.end(); ++itMapPivot) {
        apcNodes[itMapPivot->first] = itMapPivot->second;
    }
    //Set children of all parents
    apcNodes[-1] = root;
-    for (std::map<uint16_t,aiNode*>::iterator itMapParentNodes = apcNodes.begin(); itMapParentNodes != apcNodes.end(); ++itMapParentNodes) {
+    for (auto itMapParentNodes = apcNodes.begin(); itMapParentNodes != apcNodes.end(); ++itMapParentNodes) {
-        for (std::map<uint16_t,aiNode*>::iterator itMapChildNodes = apcNodes.begin(); itMapChildNodes != apcNodes.end(); ++itMapChildNodes) {
+        for (auto itMapChildNodes = apcNodes.begin(); itMapChildNodes != apcNodes.end(); ++itMapChildNodes) {
            if ((itMapParentNodes->first != itMapChildNodes->first) && (itMapParentNodes->second == itMapChildNodes->second->mParent)) {
                ++(itMapParentNodes->second->mNumChildren);
            }
@ -630,7 +630,7 @@ void LWOImporter::GenerateNodeGraph(std::map<uint16_t,aiNode*>& apcNodes)
        if (itMapParentNodes->second->mNumChildren) {
            itMapParentNodes->second->mChildren = new aiNode* [ itMapParentNodes->second->mNumChildren ];
            uint16_t p = 0;
-            for (std::map<uint16_t,aiNode*>::iterator itMapChildNodes = apcNodes.begin(); itMapChildNodes != apcNodes.end(); ++itMapChildNodes) {
+            for (auto itMapChildNodes = apcNodes.begin(); itMapChildNodes != apcNodes.end(); ++itMapChildNodes) {
                if ((itMapParentNodes->first != itMapChildNodes->first) && (itMapParentNodes->second == itMapChildNodes->second->mParent)) {
                    itMapParentNodes->second->mChildren[p++] = itMapChildNodes->second;
                }
--- a/code/LimitBoneWeightsProcess.h
+++ b/code/LimitBoneWeightsProcess.h
@ -120,7 +120,11 @@ public:
    {
        unsigned int mBone; ///< Index of the bone
        float mWeight;      ///< Weight of that bone on this vertex
-        Weight() { }
+        Weight()
        : mBone(0)
        , mWeight(0.0f)
        { }
        Weight( unsigned int pBone, float pWeight)
        {
            mBone = pBone;
--- a/code/MDLFileData.h
+++ b/code/MDLFileData.h
@ -844,11 +844,11 @@ struct IntGroupInfo_MDL7
 struct IntGroupData_MDL7
 {
    IntGroupData_MDL7()
-        : pcFaces(NULL), bNeed2UV(false)
+        : bNeed2UV(false)
    {}
    //! Array of faces that belong to the group
-    MDL::IntFace_MDL7* pcFaces;
+    std::vector<MDL::IntFace_MDL7> pcFaces;
    //! Array of vertex positions
    std::vector<aiVector3D>     vPositions;
--- a/code/MDLLoader.cpp
+++ b/code/MDLLoader.cpp
@ -1502,7 +1502,7 @@ void MDLImporter::InternReadFile_3DGS_MDL7( )
                    groupData.bNeed2UV = true;
                }
            }
-            groupData.pcFaces = new MDL::IntFace_MDL7[groupInfo.pcGroup->numtris];
+            groupData.pcFaces.resize(groupInfo.pcGroup->numtris);
            // read all faces into the preallocated arrays
            ReadFaces_3DGS_MDL7(groupInfo, groupData);
--- a/code/ObjExporter.cpp
+++ b/code/ObjExporter.cpp
@ -132,18 +132,18 @@ ObjExporter::ObjExporter(const char* _filename, const aiScene* pScene, bool noMt
    mOutputMat.precision(16);
    WriteGeometryFile(noMtl);
-    if (!noMtl)
+    if ( !noMtl ) {
        WriteMaterialFile();
    }
 }
 // ------------------------------------------------------------------------------------------------
 ObjExporter::~ObjExporter() {
-
+    // empty
 }
 // ------------------------------------------------------------------------------------------------
-std::string ObjExporter :: GetMaterialLibName()
+std::string ObjExporter::GetMaterialLibName() {
 {
    // within the Obj file, we use just the relative file name with the path stripped
    const std::string& s = GetMaterialLibFileName();
    std::string::size_type il = s.find_last_of("/\\");
@ -158,8 +158,9 @@ std::string ObjExporter :: GetMaterialLibName()
 std::string ObjExporter::GetMaterialLibFileName() {
    // Remove existing .obj file extension so that the final material file name will be fileName.mtl and not fileName.obj.mtl
    size_t lastdot = filename.find_last_of('.');
-    if (lastdot != std::string::npos)
+    if ( lastdot != std::string::npos ) {
-        return filename.substr(0, lastdot) + MaterialExt;
+        return filename.substr( 0, lastdot ) + MaterialExt;
    }
    return filename + MaterialExt;
 }
@ -172,8 +173,7 @@ void ObjExporter::WriteHeader(std::ostringstream& out) {
 }
 // ------------------------------------------------------------------------------------------------
-std::string ObjExporter::GetMaterialName(unsigned int index)
+std::string ObjExporter::GetMaterialName(unsigned int index) {
 {
    const aiMaterial* const mat = pScene->mMaterials[index];
    if ( nullptr == mat ) {
        static const std::string EmptyStr;
@ -191,8 +191,7 @@ std::string ObjExporter::GetMaterialName(unsigned int index)
 }
 // ------------------------------------------------------------------------------------------------
-void ObjExporter::WriteMaterialFile()
+void ObjExporter::WriteMaterialFile() {
 {
    WriteHeader(mOutputMat);
    for(unsigned int i = 0; i < pScene->mNumMaterials; ++i) {
@ -310,8 +309,9 @@ void ObjExporter::WriteGeometryFile(bool noMtl) {
        if (!m.name.empty()) {
            mOutput << "g " << m.name << endl;
        }
-        if (!noMtl)
+        if ( !noMtl ) {
            mOutput << "usemtl " << m.matname << endl;
        }
        for(const Face& f : m.faces) {
            mOutput << f.kind << ' ';
@ -382,7 +382,7 @@ void ObjExporter::colIndexMap::getColors( std::vector<aiColor4D> &colors ) {
 // ------------------------------------------------------------------------------------------------
 void ObjExporter::AddMesh(const aiString& name, const aiMesh* m, const aiMatrix4x4& mat) {
-    mMeshes.push_back(MeshInstance());
+    mMeshes.push_back(MeshInstance() );
    MeshInstance& mesh = mMeshes.back();
    mesh.name = std::string( name.data, name.length );
@ -436,8 +436,7 @@ void ObjExporter::AddMesh(const aiString& name, const aiMesh* m, const aiMatrix4
 }
 // ------------------------------------------------------------------------------------------------
-void ObjExporter::AddNode(const aiNode* nd, const aiMatrix4x4& mParent)
+void ObjExporter::AddNode(const aiNode* nd, const aiMatrix4x4& mParent) {
 {
    const aiMatrix4x4& mAbs = mParent * nd->mTransformation;
    for(unsigned int i = 0; i < nd->mNumMeshes; ++i) {
--- a/code/ObjFileImporter.cpp
+++ b/code/ObjFileImporter.cpp
@ -207,30 +207,24 @@ void ObjFileImporter::CreateDataFromImport(const ObjFile::Model* pModel, aiScene
    // Create the root node of the scene
    pScene->mRootNode = new aiNode;
-    if ( !pModel->m_ModelName.empty() )
+    if ( !pModel->m_ModelName.empty() ) {
    {
        // Set the name of the scene
        pScene->mRootNode->mName.Set(pModel->m_ModelName);
-    }
+    } else {
    else
    {
        // This is a fatal error, so break down the application
        ai_assert(false);
    }
    // Create nodes for the whole scene
    std::vector<aiMesh*> MeshArray;
-    for (size_t index = 0; index < pModel->m_Objects.size(); index++)
+    for (size_t index = 0; index < pModel->m_Objects.size(); ++index ) {
    {
        createNodes(pModel, pModel->m_Objects[ index ], pScene->mRootNode, pScene, MeshArray);
    }
    // Create mesh pointer buffer for this scene
-    if (pScene->mNumMeshes > 0)
+    if (pScene->mNumMeshes > 0) {
    {
        pScene->mMeshes = new aiMesh*[ MeshArray.size() ];
-        for (size_t index =0; index < MeshArray.size(); index++)
+        for (size_t index =0; index < MeshArray.size(); ++index ) {
        {
            pScene->mMeshes[ index ] = MeshArray[ index ];
        }
    }
@ -261,8 +255,7 @@ aiNode *ObjFileImporter::createNodes(const ObjFile::Model* pModel, const ObjFile
        appendChildToParentNode( pParent, pNode );
    }
-    for ( size_t i=0; i< pObject->m_Meshes.size(); i++ )
+    for ( size_t i=0; i< pObject->m_Meshes.size(); ++i ) {
    {
        unsigned int meshId = pObject->m_Meshes[ i ];
        aiMesh *pMesh = createTopology( pModel, pObject, meshId );
        if( pMesh ) {
@ -275,8 +268,7 @@ aiNode *ObjFileImporter::createNodes(const ObjFile::Model* pModel, const ObjFile
    }
    // Create all nodes from the sub-objects stored in the current object
-    if ( !pObject->m_SubObjects.empty() )
+    if ( !pObject->m_SubObjects.empty() ) {
    {
        size_t numChilds = pObject->m_SubObjects.size();
        pNode->mNumChildren = static_cast<unsigned int>( numChilds );
        pNode->mChildren = new aiNode*[ numChilds ];
@ -286,16 +278,14 @@ aiNode *ObjFileImporter::createNodes(const ObjFile::Model* pModel, const ObjFile
    // Set mesh instances into scene- and node-instances
    const size_t meshSizeDiff = MeshArray.size()- oldMeshSize;
-    if ( meshSizeDiff > 0 )
+    if ( meshSizeDiff > 0 ) {
    {
        pNode->mMeshes = new unsigned int[ meshSizeDiff ];
        pNode->mNumMeshes = static_cast<unsigned int>( meshSizeDiff );
        size_t index = 0;
-        for (size_t i = oldMeshSize; i < MeshArray.size(); i++)
+        for (size_t i = oldMeshSize; i < MeshArray.size(); ++i ) {
        {
            pNode->mMeshes[ index ] = pScene->mNumMeshes;
            pScene->mNumMeshes++;
-            index++;
+            ++index;
        }
    }
--- a/code/ObjFileMtlImporter.cpp
+++ b/code/ObjFileMtlImporter.cpp
@ -303,11 +303,12 @@ void ObjFileMtlImporter::createMaterial()
        // New Material created
        m_pModel->m_pCurrentMaterial = new ObjFile::Material();
        m_pModel->m_pCurrentMaterial->MaterialName.Set( name );
        m_pModel->m_MaterialLib.push_back( name );
        m_pModel->m_MaterialMap[ name ] = m_pModel->m_pCurrentMaterial;
        if (m_pModel->m_pCurrentMesh) {
            m_pModel->m_pCurrentMesh->m_uiMaterialIndex = static_cast<unsigned int>(m_pModel->m_MaterialLib.size() - 1);
        }
        m_pModel->m_MaterialLib.push_back( name );
        m_pModel->m_MaterialMap[ name ] = m_pModel->m_pCurrentMaterial;
    } else {
        // Use older material
        m_pModel->m_pCurrentMaterial = (*it).second;
--- a/code/ObjFileParser.cpp
+++ b/code/ObjFileParser.cpp
@ -612,13 +612,14 @@ void ObjFileParser::getMaterialLib() {
        if ( '/' != *path.rbegin() ) {
          path += '/';
        }
-        absName = path + strMatName;
+        absName += path;
        absName += strMatName;
    } else {
        absName = strMatName;
    }
    IOStream *pFile = m_pIO->Open( absName );
-    if (!pFile ) {
+    IOStream *pFile = m_pIO->Open( absName );
    if ( nullptr == pFile ) {
        DefaultLogger::get()->error("OBJ: Unable to locate material file " + strMatName);
        std::string strMatFallbackName = m_originalObjFileName.substr(0, m_originalObjFileName.length() - 3) + "mtl";
        DefaultLogger::get()->info("OBJ: Opening fallback material file " + strMatFallbackName);
--- a/code/OgreParsingUtils.h
+++ b/code/OgreParsingUtils.h
@ -52,27 +52,23 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include <sstream>
 #include <cctype>
-namespace Assimp
+namespace Assimp {
-{
+namespace Ogre {
 namespace Ogre
 {
 /// Returns a lower cased copy of @s.
-static inline std::string ToLower(std::string s)
+static AI_FORCE_INLINE
 std::string ToLower(std::string s)
 {
    std::transform(s.begin(), s.end(), s.begin(), ::tolower);
    return s;
 }
 /// Returns if @c s ends with @c suffix. If @c caseSensitive is false, both strings will be lower cased before matching.
-static inline bool EndsWith(const std::string &s, const std::string &suffix, bool caseSensitive = true)
+static AI_FORCE_INLINE
-{
+bool EndsWith(const std::string &s, const std::string &suffix, bool caseSensitive = true) {
-    if (s.empty() || suffix.empty())
+    if (s.empty() || suffix.empty()) {
    {
        return false;
-    }
+    } else if (s.length() < suffix.length()) {
    else if (s.length() < suffix.length())
    {
        return false;
    }
@ -82,48 +78,43 @@ static inline bool EndsWith(const std::string &s, const std::string &suffix, boo
    size_t len = suffix.length();
    std::string sSuffix = s.substr(s.length()-len, len);
    return (ASSIMP_stricmp(sSuffix, suffix) == 0);
 }
 // Below trim functions adapted from http://stackoverflow.com/questions/216823/whats-the-best-way-to-trim-stdstring
 /// Trim from start
-static inline std::string &TrimLeft(std::string &s, bool newlines = true)
+static AI_FORCE_INLINE
-{
+std::string &TrimLeft(std::string &s, bool newlines = true) {
-    if (!newlines)
+    if (!newlines) {
    {
        s.erase(s.begin(), std::find_if(s.begin(), s.end(), [](char c) { return !Assimp::IsSpace<char>(c); }));
-    }
+    } else {
    else
    {
        s.erase(s.begin(), std::find_if(s.begin(), s.end(), [](char c) { return !Assimp::IsSpaceOrNewLine<char>(c); }));
    }
    return s;
 }
 /// Trim from end
-static inline std::string &TrimRight(std::string &s, bool newlines = true)
+static AI_FORCE_INLINE
-{
+std::string &TrimRight(std::string &s, bool newlines = true) {
-    if (!newlines)
+    if (!newlines) {
    {
        s.erase(std::find_if(s.rbegin(), s.rend(), [](char c) { return !Assimp::IsSpace<char>(c); }).base(),s.end());
-    }
+    } else {
    else
    {
        s.erase(s.begin(), std::find_if(s.begin(), s.end(), [](char c) { return !Assimp::IsSpaceOrNewLine<char>(c); }));
    }
    return s;
 }
 /// Trim from both ends
-static inline std::string &Trim(std::string &s, bool newlines = true)
+static AI_FORCE_INLINE
-{
+std::string &Trim(std::string &s, bool newlines = true) {
    return TrimLeft(TrimRight(s, newlines), newlines);
 }
 /// Skips a line from current @ss position until a newline. Returns the skipped part.
-static inline std::string SkipLine(std::stringstream &ss)
+static AI_FORCE_INLINE
-{
+std::string SkipLine(std::stringstream &ss) {
    std::string skipped;
    getline(ss, skipped);
    return skipped;
@ -131,8 +122,8 @@ static inline std::string SkipLine(std::stringstream &ss)
 /// Skips a line and reads next element from @c ss to @c nextElement.
 /** @return Skipped line content until newline. */
-static inline std::string NextAfterNewLine(std::stringstream &ss, std::string &nextElement)
+static AI_FORCE_INLINE
-{
+std::string NextAfterNewLine(std::stringstream &ss, std::string &nextElement) {
    std::string skipped = SkipLine(ss);
    ss >> nextElement;
    return skipped;
--- a/code/OgreXmlSerializer.cpp
+++ b/code/OgreXmlSerializer.cpp
@ -213,18 +213,18 @@ std::string &OgreXmlSerializer::SkipCurrentNode()
    DefaultLogger::get()->debug("Skipping node <" + m_currentNodeName + ">");
 #endif
-    for(;;)
+    for(;;) {
-    {
+        if (!m_reader->read()) {
        if (!m_reader->read())
        {
            m_currentNodeName = "";
            return m_currentNodeName;
        }
-        if (m_reader->getNodeType() != irr::io::EXN_ELEMENT_END)
+        if ( m_reader->getNodeType() != irr::io::EXN_ELEMENT_END ) {
            continue;
-        else if (std::string(m_reader->getNodeName()) == m_currentNodeName)
+        } else if ( std::string( m_reader->getNodeName() ) == m_currentNodeName ) {
            break;
        }
    }
    return NextNode();
 }
@ -303,17 +303,16 @@ static const char *anZ = "z";
 // Mesh
-MeshXml *OgreXmlSerializer::ImportMesh(XmlReader *reader)
+MeshXml *OgreXmlSerializer::ImportMesh(XmlReader *reader) {
 {
    OgreXmlSerializer serializer(reader);
    MeshXml *mesh = new MeshXml();
    serializer.ReadMesh(mesh);
    return mesh;
 }
-void OgreXmlSerializer::ReadMesh(MeshXml *mesh)
+void OgreXmlSerializer::ReadMesh(MeshXml *mesh) {
 {
    if (NextNode() != nnMesh) {
        throw DeadlyImportError("Root node is <" + m_currentNodeName + "> expecting <mesh>");
    }
@ -835,7 +834,7 @@ void OgreXmlSerializer::ReadAnimationTracks(Animation *dest)
 void OgreXmlSerializer::ReadAnimationKeyFrames(Animation *anim, VertexAnimationTrack *dest)
 {
-    static const aiVector3D zeroVec(0.f, 0.f, 0.f);
+    const aiVector3D zeroVec(0.f, 0.f, 0.f);
    NextNode();
    while(m_currentNodeName == nnKeyFrame)
--- a/code/OpenGEXImporter.cpp
+++ b/code/OpenGEXImporter.cpp
@ -221,12 +221,8 @@ static void propId2StdString( Property *prop, std::string &name, std::string &ke
 //------------------------------------------------------------------------------------------------
 OpenGEXImporter::VertexContainer::VertexContainer()
-: m_numVerts( 0 )
+: m_numColors( 0 )
 , m_vertices( nullptr )
 , m_numColors( 0 )
 , m_colors( nullptr )
 , m_numNormals( 0 )
 , m_normals( nullptr )
 , m_numUVComps()
 , m_textureCoords() {
    // empty
@ -234,9 +230,7 @@ OpenGEXImporter::VertexContainer::VertexContainer()
 //------------------------------------------------------------------------------------------------
 OpenGEXImporter::VertexContainer::~VertexContainer() {
    delete[] m_vertices;
    delete[] m_colors;
    delete[] m_normals;
    for(auto &texcoords : m_textureCoords) {
        delete [] texcoords;
@ -697,7 +691,8 @@ void OpenGEXImporter::handleTransformNode( ODDLParser::DDLNode *node, aiScene *
 void OpenGEXImporter::handleMeshNode( ODDLParser::DDLNode *node, aiScene *pScene ) {
    m_currentMesh = new aiMesh;
    const size_t meshidx( m_meshCache.size() );
-    m_meshCache.push_back( m_currentMesh );
+    // ownership is transfered but a reference remains in m_currentMesh
    m_meshCache.emplace_back( m_currentMesh );
    Property *prop = node->getProperties();
    if( nullptr != prop ) {
@ -736,17 +731,22 @@ enum MeshAttribute {
    TexCoord
 };
 static const std::string PosToken = "position";
 static const std::string ColToken = "color";
 static const std::string NormalToken = "normal";
 static const std::string TexCoordToken = "texcoord";
 //------------------------------------------------------------------------------------------------
 static MeshAttribute getAttributeByName( const char *attribName ) {
    ai_assert( nullptr != attribName  );
-    if ( 0 == strncmp( "position", attribName, strlen( "position" ) ) ) {
+    if ( 0 == strncmp( PosToken.c_str(), attribName, PosToken.size() ) ) {
        return Position;
-    } else if ( 0 == strncmp( "color", attribName, strlen( "color" ) ) ) {
+    } else if ( 0 == strncmp( ColToken.c_str(), attribName, ColToken.size() ) ) {
        return Color;
-    } else if( 0 == strncmp( "normal", attribName, strlen( "normal" ) ) ) {
+    } else if( 0 == strncmp( NormalToken.c_str(), attribName, NormalToken.size() ) ) {
        return Normal;
-    } else if( 0 == strncmp( "texcoord", attribName, strlen( "texcoord" ) ) ) {
+    } else if( 0 == strncmp( TexCoordToken.c_str(), attribName, TexCoordToken.size() ) ) {
        return TexCoord;
    }
@ -857,17 +857,15 @@ void OpenGEXImporter::handleVertexArrayNode( ODDLParser::DDLNode *node, aiScene
        const size_t numItems( countDataArrayListItems( vaList ) );
        if( Position == attribType ) {
-            m_currentVertices.m_numVerts = numItems;
+            m_currentVertices.m_vertices.resize( numItems );
-            m_currentVertices.m_vertices = new aiVector3D[ numItems ];
+            copyVectorArray( numItems, vaList, m_currentVertices.m_vertices.data() );
            copyVectorArray( numItems, vaList, m_currentVertices.m_vertices );
        } else if ( Color == attribType ) {
            m_currentVertices.m_numColors = numItems;
            m_currentVertices.m_colors = new aiColor4D[ numItems ];
            copyColor4DArray( numItems, vaList, m_currentVertices.m_colors );
        } else if( Normal == attribType ) {
-            m_currentVertices.m_numNormals = numItems;
+            m_currentVertices.m_normals.resize( numItems );
-            m_currentVertices.m_normals = new aiVector3D[ numItems ];
+            copyVectorArray( numItems, vaList, m_currentVertices.m_normals.data() );
            copyVectorArray( numItems, vaList, m_currentVertices.m_normals );
        } else if( TexCoord == attribType ) {
            m_currentVertices.m_numUVComps[ 0 ] = numItems;
            m_currentVertices.m_textureCoords[ 0 ] = new aiVector3D[ numItems ];
@ -904,7 +902,7 @@ void OpenGEXImporter::handleIndexArrayNode( ODDLParser::DDLNode *node, aiScene *
        hasColors = true;
    }
    bool hasNormalCoords( false );
-    if ( m_currentVertices.m_numNormals > 0 ) {
+    if ( !m_currentVertices.m_normals.empty() ) {
        m_currentMesh->mNormals = new aiVector3D[ m_currentMesh->mNumVertices ];
        hasNormalCoords = true;
    }
@ -922,7 +920,7 @@ void OpenGEXImporter::handleIndexArrayNode( ODDLParser::DDLNode *node, aiScene *
        Value *next( vaList->m_dataList );
        for( size_t indices = 0; indices < current.mNumIndices; indices++ ) {
            const int idx( next->getUnsignedInt32() );
-            ai_assert( static_cast<size_t>( idx ) <= m_currentVertices.m_numVerts );
+            ai_assert( static_cast<size_t>( idx ) <= m_currentVertices.m_vertices.size() );
            ai_assert( index < m_currentMesh->mNumVertices );
            aiVector3D &pos = ( m_currentVertices.m_vertices[ idx ] );
            m_currentMesh->mVertices[ index ].Set( pos.x, pos.y, pos.z );
@ -1105,14 +1103,12 @@ void OpenGEXImporter::handleParamNode( ODDLParser::DDLNode *node, aiScene * /*pS
            return;
        }
        const float floatVal( val->getFloat() );
-        if ( prop->m_value  != nullptr ) {
+        if ( 0 == ASSIMP_strincmp( "fov", prop->m_value->getString(), 3 ) ) {
-            if ( 0 == ASSIMP_strincmp( "fov", prop->m_value->getString(), 3 ) ) {
+            m_currentCamera->mHorizontalFOV = floatVal;
-                m_currentCamera->mHorizontalFOV = floatVal;
+        } else if ( 0 == ASSIMP_strincmp( "near", prop->m_value->getString(), 4 ) ) {
-            } else if ( 0 == ASSIMP_strincmp( "near", prop->m_value->getString(), 3 ) ) {
+            m_currentCamera->mClipPlaneNear = floatVal;
-                m_currentCamera->mClipPlaneNear = floatVal;
+        } else if ( 0 == ASSIMP_strincmp( "far", prop->m_value->getString(), 3 ) ) {
-            } else if ( 0 == ASSIMP_strincmp( "far", prop->m_value->getString(), 3 ) ) {
+            m_currentCamera->mClipPlaneFar = floatVal;
                m_currentCamera->mClipPlaneFar = floatVal;
            }
        }
    }
 }
@ -1145,7 +1141,9 @@ void OpenGEXImporter::copyMeshes( aiScene *pScene ) {
    pScene->mNumMeshes = static_cast<unsigned int>(m_meshCache.size());
    pScene->mMeshes = new aiMesh*[ pScene->mNumMeshes ];
-    std::copy( m_meshCache.begin(), m_meshCache.end(), pScene->mMeshes );
+    for (unsigned int i = 0; i < pScene->mNumMeshes; i++) {
        pScene->mMeshes[i] = m_meshCache[i].release();
    }
 }
 //------------------------------------------------------------------------------------------------
--- a/code/OpenGEXImporter.h
+++ b/code/OpenGEXImporter.h
@ -144,12 +144,10 @@ protected:
 private:
    struct VertexContainer {
-        size_t m_numVerts;
+        std::vector<aiVector3D> m_vertices;
        aiVector3D *m_vertices;
        size_t m_numColors;
        aiColor4D *m_colors;
-        size_t m_numNormals;
+        std::vector<aiVector3D> m_normals;
        aiVector3D *m_normals;
        size_t m_numUVComps[ AI_MAX_NUMBER_OF_TEXTURECOORDS ];
        aiVector3D *m_textureCoords[ AI_MAX_NUMBER_OF_TEXTURECOORDS ];
@ -185,7 +183,7 @@ private:
    typedef std::map<aiNode*, std::unique_ptr<ChildInfo> > NodeChildMap;
    NodeChildMap m_nodeChildMap;
-    std::vector<aiMesh*> m_meshCache;
+    std::vector<std::unique_ptr<aiMesh> > m_meshCache;
    typedef std::map<std::string, size_t> ReferenceMap;
    std::map<std::string, size_t> m_mesh2refMap;
    std::map<std::string, size_t> m_material2refMap;
@ -194,7 +192,7 @@ private:
    MetricInfo m_metrics[ MetricInfo::Max ];
    aiNode *m_currentNode;
    VertexContainer m_currentVertices;
-    aiMesh *m_currentMesh;
+    aiMesh *m_currentMesh;  // not owned, target is owned by m_meshCache
    aiMaterial *m_currentMaterial;
    aiLight *m_currentLight;
    aiCamera *m_currentCamera;
--- a/code/PlyExporter.cpp
+++ b/code/PlyExporter.cpp
@ -148,6 +148,17 @@ PlyExporter::PlyExporter(const char* _filename, const aiScene* pScene, bool bina
        << aiGetVersionMajor() << '.' << aiGetVersionMinor() << '.'
        << aiGetVersionRevision() << ")" << endl;
    // Look through materials for a diffuse texture, and add it if found
    for ( unsigned int i = 0; i < pScene->mNumMaterials; ++i )
    {
        const aiMaterial* const mat = pScene->mMaterials[i];
        aiString s;
        if ( AI_SUCCESS == mat->Get( AI_MATKEY_TEXTURE_DIFFUSE( 0 ), s ) )
        {
            mOutput << "comment TextureFile " << s.data << endl;
        }
    }
    // TODO: probably want to check here rather than just assume something
    //       definitely not good to always write float even if we might have double precision
--- a/code/PlyLoader.cpp
+++ b/code/PlyLoader.cpp
@ -58,16 +58,16 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 using namespace Assimp;
 static const aiImporterDesc desc = {
-  "Stanford Polygon Library (PLY) Importer",
+    "Stanford Polygon Library (PLY) Importer",
-  "",
+    "",
-  "",
+    "",
-  "",
+    "",
-  aiImporterFlags_SupportBinaryFlavour | aiImporterFlags_SupportTextFlavour,
+    aiImporterFlags_SupportBinaryFlavour | aiImporterFlags_SupportTextFlavour,
-  0,
+    0,
-  0,
+    0,
-  0,
+    0,
-  0,
+    0,
-  "ply"
+    "ply"
 };
@ -92,229 +92,188 @@ namespace
 // ------------------------------------------------------------------------------------------------
 // Constructor to be privately used by Importer
 PLYImporter::PLYImporter()
-  : mBuffer(nullptr)
+: mBuffer(nullptr)
-  , pcDOM(nullptr)
+, pcDOM(nullptr)
-  , mGeneratedMesh(nullptr){
+, mGeneratedMesh(nullptr) {
-  // empty
+    // empty
 }
 // ------------------------------------------------------------------------------------------------
 // Destructor, private as well
 PLYImporter::~PLYImporter() {
-  // empty
+    // empty
 }
 // ------------------------------------------------------------------------------------------------
 // Returns whether the class can handle the format of the given file.
-bool PLYImporter::CanRead(const std::string& pFile, IOSystem* pIOHandler, bool checkSig) const
+bool PLYImporter::CanRead(const std::string& pFile, IOSystem* pIOHandler, bool checkSig) const {
-{
+    const std::string extension = GetExtension(pFile);
  const std::string extension = GetExtension(pFile);
-  if (extension == "ply")
+    if ( extension == "ply" ) {
-    return true;
+        return true;
-  else if (!extension.length() || checkSig)
+    } else if (!extension.length() || checkSig) {
-  {
+        if ( !pIOHandler ) {
-    if (!pIOHandler)return true;
+            return true;
-    const char* tokens[] = { "ply" };
+        }
-    return SearchFileHeaderForToken(pIOHandler, pFile, tokens, 1);
+        static const char* tokens[] = { "ply" };
-  }
+        return SearchFileHeaderForToken(pIOHandler, pFile, tokens, 1);
-  return false;
+    }
    return false;
 }
 // ------------------------------------------------------------------------------------------------
-const aiImporterDesc* PLYImporter::GetInfo() const
+const aiImporterDesc* PLYImporter::GetInfo() const {
-{
+    return &desc;
  return &desc;
 }
 // ------------------------------------------------------------------------------------------------
 static bool isBigEndian(const char* szMe) {
-  ai_assert(NULL != szMe);
+    ai_assert(NULL != szMe);
-  // binary_little_endian
+    // binary_little_endian
-  // binary_big_endian
+    // binary_big_endian
-  bool isBigEndian(false);
+    bool isBigEndian(false);
 #if (defined AI_BUILD_BIG_ENDIAN)
-  if ( 'l' == *szMe || 'L' == *szMe ) {
+    if ( 'l' == *szMe || 'L' == *szMe ) {
-    isBigEndian = true;
+        isBigEndian = true;
-  }
+    }
 #else
-  if ('b' == *szMe || 'B' == *szMe) {
+    if ('b' == *szMe || 'B' == *szMe) {
-    isBigEndian = true;
+        isBigEndian = true;
-  }
+    }
 #endif // ! AI_BUILD_BIG_ENDIAN
-  return isBigEndian;
+    return isBigEndian;
 }
 // ------------------------------------------------------------------------------------------------
 // Imports the given file into the given scene structure.
-void PLYImporter::InternReadFile(const std::string& pFile,
+void PLYImporter::InternReadFile(const std::string& pFile, aiScene* pScene, IOSystem* pIOHandler) {
-  aiScene* pScene, IOSystem* pIOHandler)
+    static const std::string mode = "rb";
-{
+    std::unique_ptr<IOStream> fileStream(pIOHandler->Open(pFile, mode));
-  static const std::string mode = "rb";
+    if (!fileStream.get()) {
-  std::unique_ptr<IOStream> fileStream(pIOHandler->Open(pFile, mode));
+        throw DeadlyImportError("Failed to open file " + pFile + ".");
-  if (!fileStream.get()) {
+    }
    throw DeadlyImportError("Failed to open file " + pFile + ".");
  }
-  // Get the file-size
+    // Get the file-size
-  size_t fileSize = fileStream->FileSize();
+    const size_t fileSize( fileStream->FileSize() );
-  if ( 0 == fileSize ) {
+    if ( 0 == fileSize ) {
-      throw DeadlyImportError("File " + pFile + " is empty.");
+        throw DeadlyImportError("File " + pFile + " is empty.");
-  }
+    }
-  IOStreamBuffer<char> streamedBuffer(1024 * 1024);
+    IOStreamBuffer<char> streamedBuffer(1024 * 1024);
-  streamedBuffer.open(fileStream.get());
+    streamedBuffer.open(fileStream.get());
-  // the beginning of the file must be PLY - magic, magic
+    // the beginning of the file must be PLY - magic, magic
-  std::vector<char> headerCheck;
+    std::vector<char> headerCheck;
-  streamedBuffer.getNextLine(headerCheck);
+    streamedBuffer.getNextLine(headerCheck);
-  if ((headerCheck.size() < 3) ||
+    if ((headerCheck.size() < 3) ||
-      (headerCheck[0] != 'P' && headerCheck[0] != 'p') ||
+            (headerCheck[0] != 'P' && headerCheck[0] != 'p') ||
-      (headerCheck[1] != 'L' && headerCheck[1] != 'l') ||
+            (headerCheck[1] != 'L' && headerCheck[1] != 'l') ||
-      (headerCheck[2] != 'Y' && headerCheck[2] != 'y') )
+            (headerCheck[2] != 'Y' && headerCheck[2] != 'y') ) {
-  {
+        streamedBuffer.close();
-    streamedBuffer.close();
+        throw DeadlyImportError("Invalid .ply file: Magic number \'ply\' is no there");
-    throw DeadlyImportError("Invalid .ply file: Magic number \'ply\' is no there");
+    }
  }
-  std::vector<char> mBuffer2;
+    std::vector<char> mBuffer2;
-  streamedBuffer.getNextLine(mBuffer2);
+    streamedBuffer.getNextLine(mBuffer2);
-  mBuffer = (unsigned char*)&mBuffer2[0];
+    mBuffer = (unsigned char*)&mBuffer2[0];
-  char* szMe = (char*)&this->mBuffer[0];
+    char* szMe = (char*)&this->mBuffer[0];
-  SkipSpacesAndLineEnd(szMe, (const char**)&szMe);
+    SkipSpacesAndLineEnd(szMe, (const char**)&szMe);
-  // determine the format of the file data and construct the aimesh
+    // determine the format of the file data and construct the aimesh
-  PLY::DOM sPlyDom;
+    PLY::DOM sPlyDom;   
-  this->pcDOM = &sPlyDom;
+    this->pcDOM = &sPlyDom;
-  if (TokenMatch(szMe, "format", 6)) {
+    if (TokenMatch(szMe, "format", 6)) {
-    if (TokenMatch(szMe, "ascii", 5)) {
+        if (TokenMatch(szMe, "ascii", 5)) {
-      SkipLine(szMe, (const char**)&szMe);
+            SkipLine(szMe, (const char**)&szMe);
-      if (!PLY::DOM::ParseInstance(streamedBuffer, &sPlyDom, this))
+            if (!PLY::DOM::ParseInstance(streamedBuffer, &sPlyDom, this)) {
-      {
+                if (mGeneratedMesh != NULL) {
-        if (mGeneratedMesh != NULL)
+                    delete(mGeneratedMesh);
-        {
+                    mGeneratedMesh = nullptr;
-          delete(mGeneratedMesh);
+                }
-          mGeneratedMesh = nullptr;
+
                streamedBuffer.close();
                throw DeadlyImportError("Invalid .ply file: Unable to build DOM (#1)");
            }
        } else if (!::strncmp(szMe, "binary_", 7)) {
            szMe += 7;
            const bool bIsBE(isBigEndian(szMe));
            // skip the line, parse the rest of the header and build the DOM
            if (!PLY::DOM::ParseInstanceBinary(streamedBuffer, &sPlyDom, this, bIsBE)) {
                if (mGeneratedMesh != NULL) {
                    delete(mGeneratedMesh);
                    mGeneratedMesh = nullptr;
                }
                streamedBuffer.close();
                throw DeadlyImportError("Invalid .ply file: Unable to build DOM (#2)");
            }
        } else {
            if (mGeneratedMesh != NULL) {
                delete(mGeneratedMesh);
                mGeneratedMesh = nullptr;
            }
            streamedBuffer.close();
            throw DeadlyImportError("Invalid .ply file: Unknown file format");
        }
    } else {
        AI_DEBUG_INVALIDATE_PTR(this->mBuffer);
        if (mGeneratedMesh != NULL) {
            delete(mGeneratedMesh);
            mGeneratedMesh = nullptr;
        }
        streamedBuffer.close();
-        throw DeadlyImportError("Invalid .ply file: Unable to build DOM (#1)");
+        throw DeadlyImportError("Invalid .ply file: Missing format specification");
      }
    }
    else if (!::strncmp(szMe, "binary_", 7))
    {
      szMe += 7;
      const bool bIsBE(isBigEndian(szMe));
      // skip the line, parse the rest of the header and build the DOM
      if (!PLY::DOM::ParseInstanceBinary(streamedBuffer, &sPlyDom, this, bIsBE))
      {
        if (mGeneratedMesh != NULL)
        {
          delete(mGeneratedMesh);
          mGeneratedMesh = nullptr;
        }
        streamedBuffer.close();
        throw DeadlyImportError("Invalid .ply file: Unable to build DOM (#2)");
      }
    }
    else
    {
      if (mGeneratedMesh != NULL)
      {
        delete(mGeneratedMesh);
        mGeneratedMesh = nullptr;
      }
      streamedBuffer.close();
      throw DeadlyImportError("Invalid .ply file: Unknown file format");
    }
  }
  else
  {
    AI_DEBUG_INVALIDATE_PTR(this->mBuffer);
    if (mGeneratedMesh != NULL)
    {
      delete(mGeneratedMesh);
      mGeneratedMesh = nullptr;
    }
    //free the file buffer
    streamedBuffer.close();
    throw DeadlyImportError("Invalid .ply file: Missing format specification");
  }
-  //free the file buffer
+    if (mGeneratedMesh == NULL) {
-  streamedBuffer.close();
+        throw DeadlyImportError("Invalid .ply file: Unable to extract mesh data ");
  if (mGeneratedMesh == NULL)
  {
    throw DeadlyImportError("Invalid .ply file: Unable to extract mesh data ");
  }
  // if no face list is existing we assume that the vertex
  // list is containing a list of points
  bool pointsOnly = mGeneratedMesh->mFaces == NULL ? true : false;
  if (pointsOnly)
  {
    if (mGeneratedMesh->mNumVertices < 3)
    {
      if (mGeneratedMesh != NULL)
      {
        delete(mGeneratedMesh);
        mGeneratedMesh = nullptr;
      }
      streamedBuffer.close();
      throw DeadlyImportError("Invalid .ply file: Not enough "
        "vertices to build a proper face list. ");
    }
-    const unsigned int iNum = (unsigned int)mGeneratedMesh->mNumVertices / 3;
+    // if no face list is existing we assume that the vertex
-    mGeneratedMesh->mNumFaces = iNum;
+    // list is containing a list of points
-    mGeneratedMesh->mFaces = new aiFace[mGeneratedMesh->mNumFaces];
+    bool pointsOnly = mGeneratedMesh->mFaces == NULL ? true : false;
-
+    if (pointsOnly) {
-    for (unsigned int i = 0; i < iNum; ++i)
+      mGeneratedMesh->mPrimitiveTypes = aiPrimitiveType::aiPrimitiveType_POINT;
    {
      mGeneratedMesh->mFaces[i].mNumIndices = 3;
      mGeneratedMesh->mFaces[i].mIndices = new unsigned int[3];
      mGeneratedMesh->mFaces[i].mIndices[0] = (i * 3);
      mGeneratedMesh->mFaces[i].mIndices[1] = (i * 3) + 1;
      mGeneratedMesh->mFaces[i].mIndices[2] = (i * 3) + 2;
    }
  }
-  // now load a list of all materials
+    // now load a list of all materials
-  std::vector<aiMaterial*> avMaterials;
+    std::vector<aiMaterial*> avMaterials;
-  std::string defaultTexture;
+    std::string defaultTexture;
-  LoadMaterial(&avMaterials, defaultTexture, pointsOnly);
+    LoadMaterial(&avMaterials, defaultTexture, pointsOnly);
-  // now generate the output scene object. Fill the material list
+    // now generate the output scene object. Fill the material list
-  pScene->mNumMaterials = (unsigned int)avMaterials.size();
+    pScene->mNumMaterials = (unsigned int)avMaterials.size();
-  pScene->mMaterials = new aiMaterial*[pScene->mNumMaterials];
+    pScene->mMaterials = new aiMaterial*[pScene->mNumMaterials];
-  for (unsigned int i = 0; i < pScene->mNumMaterials; ++i) {
+    for (unsigned int i = 0; i < pScene->mNumMaterials; ++i) {
-    pScene->mMaterials[i] = avMaterials[i];
+        pScene->mMaterials[i] = avMaterials[i];
-  }
+    }
-  // fill the mesh list
+    // fill the mesh list
-  pScene->mNumMeshes = 1;
+    pScene->mNumMeshes = 1;
-  pScene->mMeshes = new aiMesh*[pScene->mNumMeshes];
+    pScene->mMeshes = new aiMesh*[pScene->mNumMeshes];
-  pScene->mMeshes[0] = mGeneratedMesh;
+    pScene->mMeshes[0] = mGeneratedMesh;
-  mGeneratedMesh = nullptr;
+    mGeneratedMesh = nullptr;
-  // generate a simple node structure
+    // generate a simple node structure
-  pScene->mRootNode = new aiNode();
+    pScene->mRootNode = new aiNode();
-  pScene->mRootNode->mNumMeshes = pScene->mNumMeshes;
+    pScene->mRootNode->mNumMeshes = pScene->mNumMeshes;
-  pScene->mRootNode->mMeshes = new unsigned int[pScene->mNumMeshes];
+    pScene->mRootNode->mMeshes = new unsigned int[pScene->mNumMeshes];
-  for (unsigned int i = 0; i < pScene->mRootNode->mNumMeshes; ++i) {
+    for (unsigned int i = 0; i < pScene->mRootNode->mNumMeshes; ++i) {
-    pScene->mRootNode->mMeshes[i] = i;
+        pScene->mRootNode->mMeshes[i] = i;
-  }
+    }
 }
 void PLYImporter::LoadVertex(const PLY::Element* pcElement, const PLY::ElementInstance* instElement, unsigned int pos) {
@ -521,9 +480,7 @@ void PLYImporter::LoadVertex(const PLY::Element* pcElement, const PLY::ElementIn
 // ------------------------------------------------------------------------------------------------
 // Convert a color component to [0...1]
-ai_real PLYImporter::NormalizeColorValue(PLY::PropertyInstance::ValueUnion val,
+ai_real PLYImporter::NormalizeColorValue(PLY::PropertyInstance::ValueUnion val, PLY::EDataType eType) {
  PLY::EDataType eType)
 {
  switch (eType)
  {
  case EDT_Float:
--- a/code/PlyLoader.h
+++ b/code/PlyLoader.h
@ -57,7 +57,6 @@ struct aiMesh;
 namespace Assimp {
 using namespace PLY;
 // ---------------------------------------------------------------------------
--- a/code/PlyParser.cpp
+++ b/code/PlyParser.cpp
@ -1043,71 +1043,91 @@ bool PLY::PropertyInstance::ParseValueBinary(IOStreamBuffer<char> &streamBuffer,
  switch (eType)
  {
  case EDT_UInt:
-    out->iUInt = (uint32_t)*((uint32_t*)pCur);
+  {
-    pCur += 4;
+    uint32_t t;
    memcpy(&t, pCur, sizeof(uint32_t));
    pCur += sizeof(uint32_t);
    // Swap endianness
-    if (p_bBE)ByteSwap::Swap((int32_t*)&out->iUInt);
+    if (p_bBE)ByteSwap::Swap(&t);
    out->iUInt = t;
    break;
  }
  case EDT_UShort:
  {
-    uint16_t i = *((uint16_t*)pCur);
+    uint16_t t;
    memcpy(&t, pCur, sizeof(uint16_t));
    pCur += sizeof(uint16_t);
    // Swap endianness
-    if (p_bBE)ByteSwap::Swap(&i);
+    if (p_bBE)ByteSwap::Swap(&t);
-    out->iUInt = (uint32_t)i;
+    out->iUInt = t;
    pCur += 2;
    break;
  }
  case EDT_UChar:
  {
-    out->iUInt = (uint32_t)(*((uint8_t*)pCur));
+    uint8_t t;
-    pCur++;
+    memcpy(&t, pCur, sizeof(uint8_t));
    pCur += sizeof(uint8_t);
    out->iUInt = t;
    break;
  }
  case EDT_Int:
-    out->iInt = *((int32_t*)pCur);
+  {
-    pCur += 4;
+    int32_t t;
    memcpy(&t, pCur, sizeof(int32_t));
    pCur += sizeof(int32_t);
    // Swap endianness
-    if (p_bBE)ByteSwap::Swap(&out->iInt);
+    if (p_bBE)ByteSwap::Swap(&t);
    out->iInt = t;
    break;
  }
  case EDT_Short:
  {
-    int16_t i = *((int16_t*)pCur);
+    int16_t t;
    memcpy(&t, pCur, sizeof(int16_t));
    pCur += sizeof(int16_t);
    // Swap endianness
-    if (p_bBE)ByteSwap::Swap(&i);
+    if (p_bBE)ByteSwap::Swap(&t);
-    out->iInt = (int32_t)i;
+    out->iInt = t;
    pCur += 2;
    break;
  }
  case EDT_Char:
-    out->iInt = (int32_t)*((int8_t*)pCur);
+  {
-    pCur++;
+    int8_t t;
    memcpy(&t, pCur, sizeof(int8_t));
    pCur += sizeof(int8_t);
    out->iInt = t;
    break;
  }
  case EDT_Float:
  {
-    out->fFloat = *((float*)pCur);
+    float t;
    memcpy(&t, pCur, sizeof(float));
    pCur += sizeof(float);
    // Swap endianness
-    if (p_bBE)ByteSwap::Swap((int32_t*)&out->fFloat);
+    if (p_bBE)ByteSwap::Swap(&t);
-    pCur += 4;
+    out->fFloat = t;
    break;
  }
  case EDT_Double:
  {
-    out->fDouble = *((double*)pCur);
+    double t;
    memcpy(&t, pCur, sizeof(double));
    pCur += sizeof(double);
    // Swap endianness
-    if (p_bBE)ByteSwap::Swap((int64_t*)&out->fDouble);
+    if (p_bBE)ByteSwap::Swap(&t);
-    pCur += 8;
+    out->fDouble = t;
    break;
  }
  default:
--- a/code/PlyParser.h
+++ b/code/PlyParser.h
@ -39,12 +39,11 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ----------------------------------------------------------------------
 */
 /** @file Defines the helper data structures for importing PLY files  */
 #pragma once
 #ifndef AI_PLYFILEHELPER_H_INC
 #define AI_PLYFILEHELPER_H_INC
 #include <assimp/ParsingUtils.h>
 #include <assimp/IOStreamBuffer.h>
 #include <vector>
@ -58,8 +57,7 @@ class PLYImporter;
 // http://local.wasp.uwa.edu.au/~pbourke/dataformats/ply/
 // http://w3.impa.br/~lvelho/outgoing/sossai/old/ViHAP_D4.4.2_PLY_format_v1.1.pdf
 // http://www.okino.com/conv/exp_ply.htm
-namespace PLY
+namespace PLY {
 {
 // ---------------------------------------------------------------------------------
 /*
@ -78,8 +76,7 @@ int8
 int16
 uint8 ... forms are also used
 */
-enum EDataType
+enum EDataType {
 {
    EDT_Char = 0x0u,
    EDT_UChar,
    EDT_Short,
@ -98,8 +95,7 @@ enum EDataType
 *
 * Semantics define the usage of a property, e.g. x coordinate
 */
-enum ESemantic
+enum ESemantic {
 {
    //! vertex position x coordinate
    EST_XCoord = 0x0u,
    //! vertex position x coordinate
@ -182,15 +178,14 @@ enum ESemantic
 *
 * Semantics define the usage of an element, e.g. vertex or material
 */
-enum EElementSemantic
+enum EElementSemantic {
 {
    //! The element is a vertex
    EEST_Vertex = 0x0u,
    //! The element is a face description (index table)
    EEST_Face,
-    //! The element is a tristrip description (index table)
+    //! The element is a triangle-strip description (index table)
    EEST_TriStrip,
    //! The element is an edge description (ignored)
@ -211,17 +206,16 @@ enum EElementSemantic
 *
 * This can e.g. be a part of the vertex declaration
 */
-class Property
+class Property {
 {
 public:
    //! Default constructor
    Property()
-        : eType (EDT_Int),
+    : eType (EDT_Int)
-        Semantic(),
+    , Semantic()
-        bIsList(false),
+    , bIsList(false)
-        eFirstType(EDT_UChar)
+    , eFirstType(EDT_UChar) {
-    {}
+        // empty
    }
    //! Data type of the property
    EDataType eType;
@ -260,15 +254,14 @@ public:
 * This can e.g. be the vertex declaration. Elements contain a
 * well-defined number of properties.
 */
-class Element
+class Element {
 {
 public:
    //! Default constructor
    Element()
-        :   eSemantic (EEST_INVALID)
+    : eSemantic (EEST_INVALID)
-        ,   NumOccur(0)
+    , NumOccur(0) {
-    {}
+        // empty
    }
    //! List of properties assigned to the element
    //! std::vector to support operator[]
--- a/code/PostStepRegistry.cpp
+++ b/code/PostStepRegistry.cpp
@ -125,6 +125,9 @@ corresponding preprocessor flag to selectively disable steps.
 #ifndef ASSIMP_BUILD_NO_DEBONE_PROCESS
 #   include "DeboneProcess.h"
 #endif
 #if (!defined ASSIMP_BUILD_NO_GLOBALSCALE_PROCESS)
 #   include "ScaleProcess.h"
 #endif
 namespace Assimp {
@ -136,7 +139,7 @@ void GetPostProcessingStepInstanceList(std::vector< BaseProcess* >& out)
    // of sequence it is executed. Steps that are added here are not
    // validated - as RegisterPPStep() does - all dependencies must be given.
    // ----------------------------------------------------------------------------
-    out.reserve(30);
+    out.reserve(31);
 #if (!defined ASSIMP_BUILD_NO_MAKELEFTHANDED_PROCESS)
    out.push_back( new MakeLeftHandedProcess());
 #endif
@ -197,7 +200,9 @@ void GetPostProcessingStepInstanceList(std::vector< BaseProcess* >& out)
 #if (!defined ASSIMP_BUILD_NO_GENFACENORMALS_PROCESS)
    out.push_back( new GenFaceNormalsProcess());
 #endif
-
+#if (!defined ASSIMP_BUILD_NO_GLOBALSCALE_PROCESS)
    out.push_back( new ScaleProcess());
 #endif
    // .........................................................................
    // DON'T change the order of these five ..
    // XXX this is actually a design weakness that dates back to the time
--- a/code/PretransformVertices.cpp
+++ b/code/PretransformVertices.cpp
@ -651,7 +651,8 @@ void PretransformVertices::Execute( aiScene* pScene)
            // generate mesh nodes
            for (unsigned int i = 0; i < pScene->mNumMeshes;++i,++nodes)
            {
-                aiNode* pcNode = *nodes = new aiNode();
+                aiNode* pcNode = new aiNode();
                *nodes = pcNode;
                pcNode->mParent = pScene->mRootNode;
                pcNode->mName = pScene->mMeshes[i]->mName;
@ -663,7 +664,8 @@ void PretransformVertices::Execute( aiScene* pScene)
            // generate light nodes
            for (unsigned int i = 0; i < pScene->mNumLights;++i,++nodes)
            {
-                aiNode* pcNode = *nodes = new aiNode();
+                aiNode* pcNode = new aiNode();
                *nodes = pcNode;
                pcNode->mParent = pScene->mRootNode;
                pcNode->mName.length = ai_snprintf(pcNode->mName.data, MAXLEN, "light_%u",i);
                pScene->mLights[i]->mName = pcNode->mName;
@ -671,7 +673,8 @@ void PretransformVertices::Execute( aiScene* pScene)
            // generate camera nodes
            for (unsigned int i = 0; i < pScene->mNumCameras;++i,++nodes)
            {
-                aiNode* pcNode = *nodes = new aiNode();
+                aiNode* pcNode = new aiNode();
                *nodes = pcNode;
                pcNode->mParent = pScene->mRootNode;
                pcNode->mName.length = ::ai_snprintf(pcNode->mName.data,MAXLEN,"cam_%u",i);
                pScene->mCameras[i]->mName = pcNode->mName;
--- a/code/STLExporter.cpp
+++ b/code/STLExporter.cpp
@ -172,12 +172,16 @@ void STLExporter :: WriteMeshBinary(const aiMesh* m)
            }
            nor.Normalize();
        }
-        ai_real nx = nor.x, ny = nor.y, nz = nor.z;
+        // STL binary files use 4-byte floats. This may possibly cause loss of precision
        // for clients using 8-byte doubles
        float nx = (float) nor.x;
        float ny = (float) nor.y;
        float nz = (float) nor.z;
        AI_SWAP4(nx); AI_SWAP4(ny); AI_SWAP4(nz);
        mOutput.write((char *)&nx, 4); mOutput.write((char *)&ny, 4); mOutput.write((char *)&nz, 4);
        for(unsigned int a = 0; a < f.mNumIndices; ++a) {
            const aiVector3D& v  = m->mVertices[f.mIndices[a]];
-            ai_real vx = v.x, vy = v.y, vz = v.z;
+            float vx = (float) v.x, vy = (float) v.y, vz = (float) v.z;
            AI_SWAP4(vx); AI_SWAP4(vy); AI_SWAP4(vz);
            mOutput.write((char *)&vx, 4); mOutput.write((char *)&vy, 4); mOutput.write((char *)&vz, 4);
        }
--- a/code/STLLoader.cpp
+++ b/code/STLLoader.cpp
@ -449,26 +449,43 @@ bool STLImporter::LoadBinaryFile()
    aiVector3D *vp = pMesh->mVertices = new aiVector3D[pMesh->mNumVertices];
    aiVector3D *vn = pMesh->mNormals = new aiVector3D[pMesh->mNumVertices];
    typedef aiVector3t<float> aiVector3F;
    aiVector3F* theVec;
    aiVector3F theVec3F;
    for ( unsigned int i = 0; i < pMesh->mNumFaces; ++i ) {
        // NOTE: Blender sometimes writes empty normals ... this is not
        // our fault ... the RemoveInvalidData helper step should fix that
-        ::memcpy( vn, sz, sizeof( aiVector3D ) );
+
-        sz += sizeof(aiVector3D);
+        // There's one normal for the face in the STL; use it three times
        // for vertex normals
        theVec = (aiVector3F*) sz;
        ::memcpy( &theVec3F, theVec, sizeof(aiVector3F) );
        vn->x = theVec3F.x; vn->y = theVec3F.y; vn->z = theVec3F.z;
        *(vn+1) = *vn;
        *(vn+2) = *vn;
        ++theVec;
        vn += 3;
-        ::memcpy( vp, sz, sizeof( aiVector3D ) );
+        // vertex 1
        ::memcpy( &theVec3F, theVec, sizeof(aiVector3F) );
        vp->x = theVec3F.x; vp->y = theVec3F.y; vp->z = theVec3F.z;
        ++theVec;
        ++vp;
        sz += sizeof(aiVector3D);
-        ::memcpy( vp, sz, sizeof( aiVector3D ) );
+        // vertex 2
        ::memcpy( &theVec3F, theVec, sizeof(aiVector3F) );
        vp->x = theVec3F.x; vp->y = theVec3F.y; vp->z = theVec3F.z;
        ++theVec;
        ++vp;
        sz += sizeof(aiVector3D);
-        ::memcpy( vp, sz, sizeof( aiVector3D ) );
+        // vertex 3
        ::memcpy( &theVec3F, theVec, sizeof(aiVector3F) );
        vp->x = theVec3F.x; vp->y = theVec3F.y; vp->z = theVec3F.z;
        ++theVec;
        ++vp;
-        sz += sizeof(aiVector3D);
+        
        sz = (const unsigned char*) theVec;
        uint16_t color = *((uint16_t*)sz);
        sz += 2;
--- a/code/ScaleProcess.cpp
+++ b/code/ScaleProcess.cpp
@ -39,6 +39,8 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ----------------------------------------------------------------------
 */
 #ifndef ASSIMP_BUILD_NO_GLOBALSCALE_PROCESS
 #include "ScaleProcess.h"
 #include <assimp/scene.h>
@ -86,13 +88,6 @@ void ScaleProcess::Execute( aiScene* pScene ) {
 void ScaleProcess::traverseNodes( aiNode *node ) {
    applyScaling( node );
    /*for ( unsigned int i = 0; i < node->mNumChildren; ++i ) {
        aiNode *currentNode = currentNode->mChildren[ i ];
        if ( nullptr != currentNode ) {
            traverseNodes( currentNode );
        }
    }*/
 }
 void ScaleProcess::applyScaling( aiNode *currentNode ) {
@ -104,3 +99,5 @@ void ScaleProcess::applyScaling( aiNode *currentNode ) {
 }
 } // Namespace Assimp
 #endif // !! ASSIMP_BUILD_NO_GLOBALSCALE_PROCESS
--- a/code/SceneCombiner.cpp
+++ b/code/SceneCombiner.cpp
@ -55,6 +55,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include <assimp/SceneCombiner.h>
 #include <assimp/StringUtils.h>
 #include <assimp/fast_atof.h>
 #include <assimp/metadata.h>
 #include <assimp/Hash.h>
 #include "time.h"
 #include <assimp/DefaultLogger.hpp>
@ -806,8 +807,9 @@ void SceneCombiner::MergeMeshes(aiMesh** _out, unsigned int /*flags*/,
            for (std::vector<aiMesh*>::const_iterator it = begin; it != end;++it)   {
                if ((*it)->mNormals)    {
                    ::memcpy(pv2,(*it)->mNormals,(*it)->mNumVertices*sizeof(aiVector3D));
                } else {
                    DefaultLogger::get()->warn( "JoinMeshes: Normals expected but input mesh contains no normals" );
                }
                else DefaultLogger::get()->warn("JoinMeshes: Normals expected but input mesh contains no normals");
                pv2 += (*it)->mNumVertices;
            }
        }
@ -817,28 +819,29 @@ void SceneCombiner::MergeMeshes(aiMesh** _out, unsigned int /*flags*/,
            pv2 = out->mTangents = new aiVector3D[out->mNumVertices];
            aiVector3D* pv2b = out->mBitangents = new aiVector3D[out->mNumVertices];
-            for (std::vector<aiMesh*>::const_iterator it = begin; it != end;++it)   {
+            for (std::vector<aiMesh*>::const_iterator it = begin; it != end;++it) {
                if ((*it)->mTangents)   {
                    ::memcpy(pv2, (*it)->mTangents,  (*it)->mNumVertices*sizeof(aiVector3D));
                    ::memcpy(pv2b,(*it)->mBitangents,(*it)->mNumVertices*sizeof(aiVector3D));
                } else {
                    DefaultLogger::get()->warn( "JoinMeshes: Tangents expected but input mesh contains no tangents" );
                }
                else DefaultLogger::get()->warn("JoinMeshes: Tangents expected but input mesh contains no tangents");
                pv2  += (*it)->mNumVertices;
                pv2b += (*it)->mNumVertices;
            }
        }
        // copy texture coordinates
        unsigned int n = 0;
-        while ((**begin).HasTextureCoords(n))   {
+        while ((**begin).HasTextureCoords(n)) {
            out->mNumUVComponents[n] = (*begin)->mNumUVComponents[n];
            pv2 = out->mTextureCoords[n] = new aiVector3D[out->mNumVertices];
            for (std::vector<aiMesh*>::const_iterator it = begin; it != end;++it)   {
                if ((*it)->mTextureCoords[n])   {
                    ::memcpy(pv2,(*it)->mTextureCoords[n],(*it)->mNumVertices*sizeof(aiVector3D));
                } else {
                    DefaultLogger::get()->warn( "JoinMeshes: UVs expected but input mesh contains no UVs" );
                }
                else DefaultLogger::get()->warn("JoinMeshes: UVs expected but input mesh contains no UVs");
                pv2 += (*it)->mNumVertices;
            }
            ++n;
@ -848,11 +851,11 @@ void SceneCombiner::MergeMeshes(aiMesh** _out, unsigned int /*flags*/,
        while ((**begin).HasVertexColors(n))    {
            aiColor4D* pv2 = out->mColors[n] = new aiColor4D[out->mNumVertices];
            for (std::vector<aiMesh*>::const_iterator it = begin; it != end;++it)   {
                if ((*it)->mColors[n])  {
                    ::memcpy(pv2,(*it)->mColors[n],(*it)->mNumVertices*sizeof(aiColor4D));
                } else {
                    DefaultLogger::get()->warn( "JoinMeshes: VCs expected but input mesh contains no VCs" );
                }
                else DefaultLogger::get()->warn("JoinMeshes: VCs expected but input mesh contains no VCs");
                pv2 += (*it)->mNumVertices;
            }
            ++n;
@ -1001,7 +1004,12 @@ void SceneCombiner::CopyScene(aiScene** _dest,const aiScene* src,bool allocate)
        *_dest = new aiScene();
    }
    aiScene* dest = *_dest;
-    ai_assert(dest);
+    ai_assert(nullptr != dest);
    // copy metadata
    if ( nullptr != src->mMetaData ) {
        dest->mMetaData = new aiMetadata( *src->mMetaData );
    }
    // copy animations
    dest->mNumAnimations = src->mNumAnimations;
@ -1256,29 +1264,30 @@ void SceneCombiner::Copy(aiMetadata** _dest, const aiMetadata* src) {
        aiMetadataEntry& out = dest->mValues[i];
        out.mType = in.mType;
        switch (dest->mValues[i].mType) {
-        case AI_BOOL:
+            case AI_BOOL:
-            out.mData = new bool(*static_cast<bool*>(in.mData));
+                out.mData = new bool(*static_cast<bool*>(in.mData));
-            break;
+                break;
-        case AI_INT32:
+            case AI_INT32:
-            out.mData = new int32_t(*static_cast<int32_t*>(in.mData));
+                out.mData = new int32_t(*static_cast<int32_t*>(in.mData));
-            break;
+                break;
-        case AI_UINT64:
+            case AI_UINT64:
-            out.mData = new uint64_t(*static_cast<uint64_t*>(in.mData));
+                out.mData = new uint64_t(*static_cast<uint64_t*>(in.mData));
-            break;
+                break;
-        case AI_FLOAT:
+            case AI_FLOAT:
-            out.mData = new float(*static_cast<float*>(in.mData));
+                out.mData = new float(*static_cast<float*>(in.mData));
-            break;
+                break;
-        case AI_DOUBLE:
+            case AI_DOUBLE:
-            out.mData = new double(*static_cast<double*>(in.mData));
+                out.mData = new double(*static_cast<double*>(in.mData));
-            break;
+                break;
-        case AI_AISTRING:
+            case AI_AISTRING:
-            out.mData = new aiString(*static_cast<aiString*>(in.mData));
+                out.mData = new aiString(*static_cast<aiString*>(in.mData));
-            break;
+                break;
-        case AI_AIVECTOR3D:
+            case AI_AIVECTOR3D:
-            out.mData = new aiVector3D(*static_cast<aiVector3D*>(in.mData));
+                out.mData = new aiVector3D(*static_cast<aiVector3D*>(in.mData));
-            break;
+                break;
-        default:
+            default:
-            ai_assert(false);
+                ai_assert(false);
                break;
        }
    }
 }
--- a/code/ScenePrivate.h
+++ b/code/ScenePrivate.h
@ -42,22 +42,25 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 /** @file Stuff to deal with aiScene::mPrivate
 */
 #pragma once
 #ifndef AI_SCENEPRIVATE_H_INCLUDED
 #define AI_SCENEPRIVATE_H_INCLUDED
 #include <assimp/ai_assert.h>
 #include <assimp/scene.h>
-namespace Assimp    {
+namespace Assimp {
 // Forward declarations
 class Importer;
 struct ScenePrivateData {
    ScenePrivateData()
-        : mOrigImporter()
+    : mOrigImporter( nullptr )
-        , mPPStepsApplied()
+    , mPPStepsApplied( 0 )
-        , mIsCopy()
+    , mIsCopy( false ) {
-    {}
+        // empty
    }
    // Importer that originally loaded the scene though the C-API
    // If set, this object is owned by this private data instance.
@ -75,14 +78,24 @@ struct ScenePrivateData {
 };
 // Access private data stored in the scene
-inline ScenePrivateData* ScenePriv(aiScene* in) {
+inline
 ScenePrivateData* ScenePriv(aiScene* in) {
    ai_assert( nullptr != in );
    if ( nullptr == in ) {
        return nullptr;
    }
    return static_cast<ScenePrivateData*>(in->mPrivate);
 }
-inline const ScenePrivateData* ScenePriv(const aiScene* in) {
+inline
 const ScenePrivateData* ScenePriv(const aiScene* in) {
    ai_assert( nullptr != in );
    if ( nullptr == in ) {
        return nullptr;
    }
    return static_cast<const ScenePrivateData*>(in->mPrivate);
 }
-}
+} // Namespace Assimp
-#endif
+#endif // AI_SCENEPRIVATE_H_INCLUDED
--- a/code/SpatialSort.cpp
+++ b/code/SpatialSort.cpp
@ -294,7 +294,7 @@ void SpatialSort::FindIdenticalPositions( const aiVector3D& pPosition,
        index++;
    // Now start iterating from there until the first position lays outside of the distance range.
-    // Add all positions inside the distance range within the tolerance to the result aray
+    // Add all positions inside the distance range within the tolerance to the result array
    std::vector<Entry>::const_iterator it = mPositions.begin() + index;
    while( ToBinary(it->mDistance) < maxDistBinary)
    {
--- a/code/VertexTriangleAdjacency.cpp
+++ b/code/VertexTriangleAdjacency.cpp
@ -48,7 +48,6 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "VertexTriangleAdjacency.h"
 #include <assimp/mesh.h>
 using namespace Assimp;
 // ------------------------------------------------------------------------------------------------
@ -60,8 +59,8 @@ VertexTriangleAdjacency::VertexTriangleAdjacency(aiFace *pcFaces,
    // compute the number of referenced vertices if it wasn't specified by the caller
    const aiFace* const pcFaceEnd = pcFaces + iNumFaces;
    if (!iNumVertices)  {
        for (aiFace* pcFace = pcFaces; pcFace != pcFaceEnd; ++pcFace)   {
            ai_assert( nullptr != pcFace );
            ai_assert(3 == pcFace->mNumIndices);
            iNumVertices = std::max(iNumVertices,pcFace->mIndices[0]);
            iNumVertices = std::max(iNumVertices,pcFace->mIndices[1]);
@ -69,19 +68,18 @@ VertexTriangleAdjacency::VertexTriangleAdjacency(aiFace *pcFaces,
        }
    }
-    this->iNumVertices = iNumVertices;
+    mNumVertices = iNumVertices;
    unsigned int* pi;
    // allocate storage
    if (bComputeNumTriangles)   {
        pi = mLiveTriangles = new unsigned int[iNumVertices+1];
-        memset(mLiveTriangles,0,sizeof(unsigned int)*(iNumVertices+1));
+        ::memset(mLiveTriangles,0,sizeof(unsigned int)*(iNumVertices+1));
        mOffsetTable = new unsigned int[iNumVertices+2]+1;
-    }
+    } else {
    else {
        pi = mOffsetTable = new unsigned int[iNumVertices+2]+1;
-        memset(mOffsetTable,0,sizeof(unsigned int)*(iNumVertices+1));
+        ::memset(mOffsetTable,0,sizeof(unsigned int)*(iNumVertices+1));
        mLiveTriangles = NULL; // important, otherwise the d'tor would crash
    }
@ -90,8 +88,7 @@ VertexTriangleAdjacency::VertexTriangleAdjacency(aiFace *pcFaces,
    *piEnd++ = 0u;
    // first pass: compute the number of faces referencing each vertex
-    for (aiFace* pcFace = pcFaces; pcFace != pcFaceEnd; ++pcFace)
+    for (aiFace* pcFace = pcFaces; pcFace != pcFaceEnd; ++pcFace) {
    {
        pi[pcFace->mIndices[0]]++;
        pi[pcFace->mIndices[1]]++;
        pi[pcFace->mIndices[2]]++;
--- a/code/VertexTriangleAdjacency.h
+++ b/code/VertexTriangleAdjacency.h
@ -60,10 +60,8 @@ namespace Assimp    {
 *  @note Although it is called #VertexTriangleAdjacency, the current version does also
 *    support arbitrary polygons. */
 // --------------------------------------------------------------------------------------------
-class ASSIMP_API VertexTriangleAdjacency
+class ASSIMP_API VertexTriangleAdjacency {
 {
 public:
    // ----------------------------------------------------------------------------
    /** @brief Construction from an existing index buffer
     *  @param pcFaces Index buffer
@ -77,39 +75,30 @@ public:
        unsigned int iNumVertices = 0,
        bool bComputeNumTriangles = true);
    // ----------------------------------------------------------------------------
    /** @brief Destructor */
    ~VertexTriangleAdjacency();
 public:
    // ----------------------------------------------------------------------------
    /** @brief Get all triangles adjacent to a vertex
     *  @param iVertIndex Index of the vertex
     *  @return A pointer to the adjacency list. */
-    unsigned int* GetAdjacentTriangles(unsigned int iVertIndex) const
+    unsigned int* GetAdjacentTriangles(unsigned int iVertIndex) const {
-    {
+        ai_assert(iVertIndex < mNumVertices);
        ai_assert(iVertIndex < iNumVertices);
        return &mAdjacencyTable[ mOffsetTable[iVertIndex]];
    }
    // ----------------------------------------------------------------------------
    /** @brief Get the number of triangles that are referenced by
     *    a vertex. This function returns a reference that can be modified
     *  @param iVertIndex Index of the vertex
     *  @return Number of referenced triangles */
-    unsigned int& GetNumTrianglesPtr(unsigned int iVertIndex)
+    unsigned int& GetNumTrianglesPtr(unsigned int iVertIndex) {
-    {
+        ai_assert( iVertIndex < mNumVertices );
-        ai_assert(iVertIndex < iNumVertices && NULL != mLiveTriangles);
+        ai_assert( nullptr != mLiveTriangles );
        return mLiveTriangles[iVertIndex];
    }
 public:
    //! Offset table
    unsigned int* mOffsetTable;
@ -120,9 +109,9 @@ public:
    unsigned int* mLiveTriangles;
    //! Debug: Number of referenced vertices
-    unsigned int iNumVertices;
+    unsigned int mNumVertices;
 };
-}
+
 } //! ns Assimp
 #endif // !! AI_VTADJACENCY_H_INC
--- a/code/XFileImporter.cpp
+++ b/code/XFileImporter.cpp
@ -5,8 +5,6 @@ Open Asset Import Library (assimp)
 Copyright (c) 2006-2018, assimp team
 All rights reserved.
 Redistribution and use of this software in source and binary forms,
@ -44,7 +42,6 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *  @brief Implementation of the XFile importer class
 */
 #ifndef ASSIMP_BUILD_NO_X_IMPORTER
 #include "XFileImporter.h"
@ -79,17 +76,19 @@ static const aiImporterDesc desc = {
 // ------------------------------------------------------------------------------------------------
 // Constructor to be privately used by Importer
 XFileImporter::XFileImporter()
-{}
+: mBuffer() {
    // empty
 }
 // ------------------------------------------------------------------------------------------------
 // Destructor, private as well
-XFileImporter::~XFileImporter()
+XFileImporter::~XFileImporter() {
-{}
+    // empty
 }
 // ------------------------------------------------------------------------------------------------
 // Returns whether the class can handle the format of the given file.
-bool XFileImporter::CanRead( const std::string& pFile, IOSystem* pIOHandler, bool checkSig) const
+bool XFileImporter::CanRead( const std::string& pFile, IOSystem* pIOHandler, bool checkSig) const {
 {
    std::string extension = GetExtension(pFile);
    if(extension == "x") {
        return true;
@ -104,23 +103,24 @@ bool XFileImporter::CanRead( const std::string& pFile, IOSystem* pIOHandler, boo
 // ------------------------------------------------------------------------------------------------
 // Get file extension list
-const aiImporterDesc* XFileImporter::GetInfo () const
+const aiImporterDesc* XFileImporter::GetInfo () const {
 {
    return &desc;
 }
 // ------------------------------------------------------------------------------------------------
 // Imports the given file into the given scene structure.
-void XFileImporter::InternReadFile( const std::string& pFile, aiScene* pScene, IOSystem* pIOHandler)
+void XFileImporter::InternReadFile( const std::string& pFile, aiScene* pScene, IOSystem* pIOHandler) {
 {
    // read file into memory
    std::unique_ptr<IOStream> file( pIOHandler->Open( pFile));
-    if( file.get() == NULL)
+    if ( file.get() == NULL ) {
-        throw DeadlyImportError( "Failed to open file " + pFile + ".");
+        throw DeadlyImportError( "Failed to open file " + pFile + "." );
    }
    static const size_t MinSize = 16;
    size_t fileSize = file->FileSize();
-    if( fileSize < 16)
+    if ( fileSize < MinSize ) {
-        throw DeadlyImportError( "XFile is too small.");
+        throw DeadlyImportError( "XFile is too small." );
    }
    // in the hope that binary files will never start with a BOM ...
    mBuffer.resize( fileSize + 1);
@ -134,8 +134,9 @@ void XFileImporter::InternReadFile( const std::string& pFile, aiScene* pScene, I
    CreateDataRepresentationFromImport( pScene, parser.GetImportedData());
    // if nothing came from it, report it as error
-    if( !pScene->mRootNode)
+    if ( !pScene->mRootNode ) {
-        throw DeadlyImportError( "XFile is ill-formatted - no content imported.");
+        throw DeadlyImportError( "XFile is ill-formatted - no content imported." );
    }
 }
 // ------------------------------------------------------------------------------------------------
@ -146,17 +147,15 @@ void XFileImporter::CreateDataRepresentationFromImport( aiScene* pScene, XFile::
    ConvertMaterials( pScene, pData->mGlobalMaterials);
    // copy nodes, extracting meshes and materials on the way
-    pScene->mRootNode = CreateNodes( pScene, NULL, pData->mRootNode);
+    pScene->mRootNode = CreateNodes( pScene, nullptr, pData->mRootNode);
    // extract animations
    CreateAnimations( pScene, pData);
    // read the global meshes that were stored outside of any node
-    if( pData->mGlobalMeshes.size() > 0)
+    if( !pData->mGlobalMeshes.empty() )  {
    {
        // create a root node to hold them if there isn't any, yet
-        if( pScene->mRootNode == NULL)
+        if( pScene->mRootNode == nullptr ) {
        {
            pScene->mRootNode = new aiNode;
            pScene->mRootNode->mName.Set( "$dummy_node");
        }
@ -180,8 +179,7 @@ void XFileImporter::CreateDataRepresentationFromImport( aiScene* pScene, XFile::
    flipper.Execute(pScene);
    // finally: create a dummy material if not material was imported
-    if( pScene->mNumMaterials == 0)
+    if( pScene->mNumMaterials == 0) {
    {
        pScene->mNumMaterials = 1;
        // create the Material
        aiMaterial* mat = new aiMaterial;
@ -205,10 +203,10 @@ void XFileImporter::CreateDataRepresentationFromImport( aiScene* pScene, XFile::
 // ------------------------------------------------------------------------------------------------
 // Recursively creates scene nodes from the imported hierarchy.
-aiNode* XFileImporter::CreateNodes( aiScene* pScene, aiNode* pParent, const XFile::Node* pNode)
+aiNode* XFileImporter::CreateNodes( aiScene* pScene, aiNode* pParent, const XFile::Node* pNode) {
-{
+    if ( !pNode ) {
-    if( !pNode)
+        return nullptr;
-        return NULL;
+    }
    // create node
    aiNode* node = new aiNode;
@ -222,13 +220,13 @@ aiNode* XFileImporter::CreateNodes( aiScene* pScene, aiNode* pParent, const XFil
    CreateMeshes( pScene, node, pNode->mMeshes);
    // handle childs
-    if( pNode->mChildren.size() > 0)
+    if( !pNode->mChildren.empty() ) {
    {
        node->mNumChildren = (unsigned int)pNode->mChildren.size();
        node->mChildren = new aiNode* [node->mNumChildren];
-        for( unsigned int a = 0; a < pNode->mChildren.size(); a++)
+        for ( unsigned int a = 0; a < pNode->mChildren.size(); ++a ) {
-            node->mChildren[a] = CreateNodes( pScene, node, pNode->mChildren[a]);
+            node->mChildren[ a ] = CreateNodes( pScene, node, pNode->mChildren[ a ] );
        }
    }
    return node;
@ -236,16 +234,14 @@ aiNode* XFileImporter::CreateNodes( aiScene* pScene, aiNode* pParent, const XFil
 // ------------------------------------------------------------------------------------------------
 // Creates the meshes for the given node.
-void XFileImporter::CreateMeshes( aiScene* pScene, aiNode* pNode, const std::vector<XFile::Mesh*>& pMeshes)
+void XFileImporter::CreateMeshes( aiScene* pScene, aiNode* pNode, const std::vector<XFile::Mesh*>& pMeshes) {
 {
    if (pMeshes.empty()) {
        return;
    }
    // create a mesh for each mesh-material combination in the source node
    std::vector<aiMesh*> meshes;
-    for( unsigned int a = 0; a < pMeshes.size(); a++)
+    for( unsigned int a = 0; a < pMeshes.size(); ++a ) {
    {
        XFile::Mesh* sourceMesh = pMeshes[a];
        if ( nullptr == sourceMesh ) {
            continue;
@ -255,35 +251,30 @@ void XFileImporter::CreateMeshes( aiScene* pScene, aiNode* pNode, const std::vec
        ConvertMaterials( pScene, sourceMesh->mMaterials);
        unsigned int numMaterials = std::max( (unsigned int)sourceMesh->mMaterials.size(), 1u);
-        for( unsigned int b = 0; b < numMaterials; b++)
+        for( unsigned int b = 0; b < numMaterials; ++b ) {
        {
            // collect the faces belonging to this material
            std::vector<unsigned int> faces;
            unsigned int numVertices = 0;
-            if( sourceMesh->mFaceMaterials.size() > 0)
+            if( !sourceMesh->mFaceMaterials.empty() ) {
            {
                // if there is a per-face material defined, select the faces with the corresponding material
-                for( unsigned int c = 0; c < sourceMesh->mFaceMaterials.size(); c++)
+                for( unsigned int c = 0; c < sourceMesh->mFaceMaterials.size(); ++c ) {
-                {
+                    if( sourceMesh->mFaceMaterials[c] == b) {
                    if( sourceMesh->mFaceMaterials[c] == b)
                    {
                        faces.push_back( c);
                        numVertices += (unsigned int)sourceMesh->mPosFaces[c].mIndices.size();
                    }
                }
-            } else
+            } else {
            {
                // if there is no per-face material, place everything into one mesh
-                for( unsigned int c = 0; c < sourceMesh->mPosFaces.size(); c++)
+                for( unsigned int c = 0; c < sourceMesh->mPosFaces.size(); ++c ) {
                {
                    faces.push_back( c);
                    numVertices += (unsigned int)sourceMesh->mPosFaces[c].mIndices.size();
                }
            }
            // no faces/vertices using this material? strange...
-            if( numVertices == 0)
+            if ( numVertices == 0 ) {
                continue;
            }
            // create a submesh using this material
            aiMesh* mesh = new aiMesh;
@ -291,11 +282,9 @@ void XFileImporter::CreateMeshes( aiScene* pScene, aiNode* pNode, const std::vec
            // find the material in the scene's material list. Either own material
            // or referenced material, it should already have a valid index
-            if( sourceMesh->mFaceMaterials.size() > 0)
+            if( !sourceMesh->mFaceMaterials.empty() ) {
            {
                mesh->mMaterialIndex = static_cast<unsigned int>(sourceMesh->mMaterials[b].sceneIndex);
-            } else
+            } else {
            {
                mesh->mMaterialIndex = 0;
            }
@ -310,28 +299,28 @@ void XFileImporter::CreateMeshes( aiScene* pScene, aiNode* pNode, const std::vec
            mesh->mName.Set(sourceMesh->mName);
            // normals?
-            if( sourceMesh->mNormals.size() > 0)
+            if ( sourceMesh->mNormals.size() > 0 ) {
-                mesh->mNormals = new aiVector3D[numVertices];
+                mesh->mNormals = new aiVector3D[ numVertices ];
            }
            // texture coords
-            for( unsigned int c = 0; c < AI_MAX_NUMBER_OF_TEXTURECOORDS; c++)
+            for( unsigned int c = 0; c < AI_MAX_NUMBER_OF_TEXTURECOORDS; ++c ) {
-            {
+                if ( !sourceMesh->mTexCoords[ c ].empty() ) {
-                if( sourceMesh->mTexCoords[c].size() > 0)
+                    mesh->mTextureCoords[ c ] = new aiVector3D[ numVertices ];
-                    mesh->mTextureCoords[c] = new aiVector3D[numVertices];
+                }
            }
            // vertex colors
-            for( unsigned int c = 0; c < AI_MAX_NUMBER_OF_COLOR_SETS; c++)
+            for( unsigned int c = 0; c < AI_MAX_NUMBER_OF_COLOR_SETS; ++c ) {
-            {
+                if ( !sourceMesh->mColors[ c ].empty() ) {
-                if( sourceMesh->mColors[c].size() > 0)
+                    mesh->mColors[ c ] = new aiColor4D[ numVertices ];
-                    mesh->mColors[c] = new aiColor4D[numVertices];
+                }
            }
            // now collect the vertex data of all data streams present in the imported mesh
-            unsigned int newIndex = 0;
+            unsigned int newIndex( 0 );
            std::vector<unsigned int> orgPoints; // from which original point each new vertex stems
            orgPoints.resize( numVertices, 0);
-            for( unsigned int c = 0; c < faces.size(); c++)
+            for( unsigned int c = 0; c < faces.size(); ++c ) {
            {
                unsigned int f = faces[c]; // index of the source face
                const XFile::Face& pf = sourceMesh->mPosFaces[f]; // position source face
@ -341,30 +330,30 @@ void XFileImporter::CreateMeshes( aiScene* pScene, aiNode* pNode, const std::vec
                df.mIndices = new unsigned int[ df.mNumIndices];
                // collect vertex data for indices of this face
-                for( unsigned int d = 0; d < df.mNumIndices; d++)
+                for( unsigned int d = 0; d < df.mNumIndices; ++d ) {
                {
                    df.mIndices[d] = newIndex;
                    orgPoints[newIndex] = pf.mIndices[d];
                    // Position
                    mesh->mVertices[newIndex] = sourceMesh->mPositions[pf.mIndices[d]];
                    // Normal, if present
-                    if( mesh->HasNormals())
+                    if ( mesh->HasNormals() ) {
-                        mesh->mNormals[newIndex] = sourceMesh->mNormals[sourceMesh->mNormFaces[f].mIndices[d]];
+                        mesh->mNormals[ newIndex ] = sourceMesh->mNormals[ sourceMesh->mNormFaces[ f ].mIndices[ d ] ];
                    }
                    // texture coord sets
-                    for( unsigned int e = 0; e < AI_MAX_NUMBER_OF_TEXTURECOORDS; e++)
+                    for( unsigned int e = 0; e < AI_MAX_NUMBER_OF_TEXTURECOORDS; ++e ) {
-                    {
+                        if( mesh->HasTextureCoords( e)) {
                        if( mesh->HasTextureCoords( e))
                        {
                            aiVector2D tex = sourceMesh->mTexCoords[e][pf.mIndices[d]];
                            mesh->mTextureCoords[e][newIndex] = aiVector3D( tex.x, 1.0f - tex.y, 0.0f);
                        }
                    }
                    // vertex color sets
-                    for( unsigned int e = 0; e < AI_MAX_NUMBER_OF_COLOR_SETS; e++)
+                    for ( unsigned int e = 0; e < AI_MAX_NUMBER_OF_COLOR_SETS; ++e ) {
-                        if( mesh->HasVertexColors( e))
+                        if ( mesh->HasVertexColors( e ) ) {
-                            mesh->mColors[e][newIndex] = sourceMesh->mColors[e][pf.mIndices[d]];
+                            mesh->mColors[ e ][ newIndex ] = sourceMesh->mColors[ e ][ pf.mIndices[ d ] ];
                        }
                    }
                    newIndex++;
                }
@ -376,28 +365,29 @@ void XFileImporter::CreateMeshes( aiScene* pScene, aiNode* pNode, const std::vec
            // convert all bones of the source mesh which influence vertices in this newly created mesh
            const std::vector<XFile::Bone>& bones = sourceMesh->mBones;
            std::vector<aiBone*> newBones;
-            for( unsigned int c = 0; c < bones.size(); c++)
+            for( unsigned int c = 0; c < bones.size(); ++c ) {
            {
                const XFile::Bone& obone = bones[c];
                // set up a vertex-linear array of the weights for quick searching if a bone influences a vertex
                std::vector<ai_real> oldWeights( sourceMesh->mPositions.size(), 0.0);
-                for( unsigned int d = 0; d < obone.mWeights.size(); d++)
+                for ( unsigned int d = 0; d < obone.mWeights.size(); ++d ) {
-                    oldWeights[obone.mWeights[d].mVertex] = obone.mWeights[d].mWeight;
+                    oldWeights[ obone.mWeights[ d ].mVertex ] = obone.mWeights[ d ].mWeight;
                }
                // collect all vertex weights that influence a vertex in the new mesh
                std::vector<aiVertexWeight> newWeights;
                newWeights.reserve( numVertices);
-                for( unsigned int d = 0; d < orgPoints.size(); d++)
+                for( unsigned int d = 0; d < orgPoints.size(); ++d ) {
                {
                    // does the new vertex stem from an old vertex which was influenced by this bone?
                    ai_real w = oldWeights[orgPoints[d]];
-                    if( w > 0.0)
+                    if ( w > 0.0 ) {
-                        newWeights.push_back( aiVertexWeight( d, w));
+                        newWeights.push_back( aiVertexWeight( d, w ) );
                    }
                }
                // if the bone has no weights in the newly created mesh, ignore it
-                if( newWeights.size() == 0)
+                if ( newWeights.empty() ) {
                    continue;
                }
                // create
                aiBone* nbone = new aiBone;
@ -407,14 +397,14 @@ void XFileImporter::CreateMeshes( aiScene* pScene, aiNode* pNode, const std::vec
                nbone->mOffsetMatrix = obone.mOffsetMatrix;
                nbone->mNumWeights = (unsigned int)newWeights.size();
                nbone->mWeights = new aiVertexWeight[nbone->mNumWeights];
-                for( unsigned int d = 0; d < newWeights.size(); d++)
+                for ( unsigned int d = 0; d < newWeights.size(); ++d ) {
-                    nbone->mWeights[d] = newWeights[d];
+                    nbone->mWeights[ d ] = newWeights[ d ];
                }
            }
            // store the bones in the mesh
            mesh->mNumBones = (unsigned int)newBones.size();
-            if( newBones.size() > 0)
+            if( !newBones.empty()) {
            {
                mesh->mBones = new aiBone*[mesh->mNumBones];
                std::copy( newBones.begin(), newBones.end(), mesh->mBones);
            }
@ -424,8 +414,7 @@ void XFileImporter::CreateMeshes( aiScene* pScene, aiNode* pNode, const std::vec
    // reallocate scene mesh array to be large enough
    aiMesh** prevArray = pScene->mMeshes;
    pScene->mMeshes = new aiMesh*[pScene->mNumMeshes + meshes.size()];
-    if( prevArray)
+    if( prevArray) {
    {
        memcpy( pScene->mMeshes, prevArray, pScene->mNumMeshes * sizeof( aiMesh*));
        delete [] prevArray;
    }
@ -435,8 +424,7 @@ void XFileImporter::CreateMeshes( aiScene* pScene, aiNode* pNode, const std::vec
    pNode->mMeshes = new unsigned int[pNode->mNumMeshes];
    // store all meshes in the mesh library of the scene and store their indices in the node
-    for( unsigned int a = 0; a < meshes.size(); a++)
+    for( unsigned int a = 0; a < meshes.size(); a++) {
    {
        pScene->mMeshes[pScene->mNumMeshes] = meshes[a];
        pNode->mMeshes[a] = pScene->mNumMeshes;
        pScene->mNumMeshes++;
@ -445,16 +433,15 @@ void XFileImporter::CreateMeshes( aiScene* pScene, aiNode* pNode, const std::vec
 // ------------------------------------------------------------------------------------------------
 // Converts the animations from the given imported data and creates them in the scene.
-void XFileImporter::CreateAnimations( aiScene* pScene, const XFile::Scene* pData)
+void XFileImporter::CreateAnimations( aiScene* pScene, const XFile::Scene* pData) {
 {
    std::vector<aiAnimation*> newAnims;
-    for( unsigned int a = 0; a < pData->mAnims.size(); a++)
+    for( unsigned int a = 0; a < pData->mAnims.size(); ++a ) {
    {
        const XFile::Animation* anim = pData->mAnims[a];
        // some exporters mock me with empty animation tags.
-        if( anim->mAnims.size() == 0)
+        if ( anim->mAnims.empty() ) {
            continue;
        }
        // create a new animation to hold the data
        aiAnimation* nanim = new aiAnimation;
@ -466,15 +453,14 @@ void XFileImporter::CreateAnimations( aiScene* pScene, const XFile::Scene* pData
        nanim->mNumChannels = (unsigned int)anim->mAnims.size();
        nanim->mChannels = new aiNodeAnim*[nanim->mNumChannels];
-        for( unsigned int b = 0; b < anim->mAnims.size(); b++)
+        for( unsigned int b = 0; b < anim->mAnims.size(); ++b ) {
        {
            const XFile::AnimBone* bone = anim->mAnims[b];
            aiNodeAnim* nbone = new aiNodeAnim;
            nbone->mNodeName.Set( bone->mBoneName);
            nanim->mChannels[b] = nbone;
            // keyframes are given as combined transformation matrix keys
-            if( bone->mTrafoKeys.size() > 0)
+            if( !bone->mTrafoKeys.empty() )
            {
                nbone->mNumPositionKeys = (unsigned int)bone->mTrafoKeys.size();
                nbone->mPositionKeys = new aiVectorKey[nbone->mNumPositionKeys];
@ -483,8 +469,7 @@ void XFileImporter::CreateAnimations( aiScene* pScene, const XFile::Scene* pData
                nbone->mNumScalingKeys = (unsigned int)bone->mTrafoKeys.size();
                nbone->mScalingKeys = new aiVectorKey[nbone->mNumScalingKeys];
-                for( unsigned int c = 0; c < bone->mTrafoKeys.size(); c++)
+                for( unsigned int c = 0; c < bone->mTrafoKeys.size(); ++c)  {
                {
                    // deconstruct each matrix into separate position, rotation and scaling
                    double time = bone->mTrafoKeys[c].mTime;
                    aiMatrix4x4 trafo = bone->mTrafoKeys[c].mMatrix;
@ -516,13 +501,11 @@ void XFileImporter::CreateAnimations( aiScene* pScene, const XFile::Scene* pData
                // longest lasting key sequence determines duration
                nanim->mDuration = std::max( nanim->mDuration, bone->mTrafoKeys.back().mTime);
-            } else
+            } else {
            {
                // separate key sequences for position, rotation, scaling
                nbone->mNumPositionKeys = (unsigned int)bone->mPosKeys.size();
                nbone->mPositionKeys = new aiVectorKey[nbone->mNumPositionKeys];
-                for( unsigned int c = 0; c < nbone->mNumPositionKeys; c++)
+                for( unsigned int c = 0; c < nbone->mNumPositionKeys; ++c ) {
                {
                    aiVector3D pos = bone->mPosKeys[c].mValue;
                    nbone->mPositionKeys[c].mTime = bone->mPosKeys[c].mTime;
@ -532,8 +515,7 @@ void XFileImporter::CreateAnimations( aiScene* pScene, const XFile::Scene* pData
                // rotation
                nbone->mNumRotationKeys = (unsigned int)bone->mRotKeys.size();
                nbone->mRotationKeys = new aiQuatKey[nbone->mNumRotationKeys];
-                for( unsigned int c = 0; c < nbone->mNumRotationKeys; c++)
+                for( unsigned int c = 0; c < nbone->mNumRotationKeys; ++c ) {
                {
                    aiMatrix3x3 rotmat = bone->mRotKeys[c].mValue.GetMatrix();
                    nbone->mRotationKeys[c].mTime = bone->mRotKeys[c].mTime;
@ -573,56 +555,51 @@ void XFileImporter::CreateAnimations( aiScene* pScene, const XFile::Scene* pData
 void XFileImporter::ConvertMaterials( aiScene* pScene, std::vector<XFile::Material>& pMaterials)
 {
    // count the non-referrer materials in the array
-    unsigned int numNewMaterials = 0;
+    unsigned int numNewMaterials( 0 );
-    for( unsigned int a = 0; a < pMaterials.size(); a++)
+    for ( unsigned int a = 0; a < pMaterials.size(); ++a ) {
-        if( !pMaterials[a].mIsReference)
+        if ( !pMaterials[ a ].mIsReference ) {
-            numNewMaterials++;
+            ++numNewMaterials;
        }
    }
    // resize the scene's material list to offer enough space for the new materials
-  if( numNewMaterials > 0 )
+    if( numNewMaterials > 0 ) {
-  {
+        aiMaterial** prevMats = pScene->mMaterials;
-      aiMaterial** prevMats = pScene->mMaterials;
+        pScene->mMaterials = new aiMaterial*[pScene->mNumMaterials + numNewMaterials];
-      pScene->mMaterials = new aiMaterial*[pScene->mNumMaterials + numNewMaterials];
+        if( nullptr != prevMats)  {
-      if( prevMats)
+            ::memcpy( pScene->mMaterials, prevMats, pScene->mNumMaterials * sizeof( aiMaterial*));
-      {
+            delete [] prevMats;
-          memcpy( pScene->mMaterials, prevMats, pScene->mNumMaterials * sizeof( aiMaterial*));
+        }
-          delete [] prevMats;
+    }
      }
  }
    // convert all the materials given in the array
-    for( unsigned int a = 0; a < pMaterials.size(); a++)
+    for( unsigned int a = 0; a < pMaterials.size(); ++a ) {
    {
        XFile::Material& oldMat = pMaterials[a];
-        if( oldMat.mIsReference)
+        if( oldMat.mIsReference) {
-    {
+            // find the material it refers to by name, and store its index
-      // find the material it refers to by name, and store its index
+            for( size_t a = 0; a < pScene->mNumMaterials; ++a ) {
-      for( size_t a = 0; a < pScene->mNumMaterials; ++a )
+                aiString name;
-      {
+                pScene->mMaterials[a]->Get( AI_MATKEY_NAME, name);
-        aiString name;
+                if( strcmp( name.C_Str(), oldMat.mName.data()) == 0 ) {
-        pScene->mMaterials[a]->Get( AI_MATKEY_NAME, name);
+                    oldMat.sceneIndex = a;
-        if( strcmp( name.C_Str(), oldMat.mName.data()) == 0 )
+                    break;
-        {
+                }
-          oldMat.sceneIndex = a;
+            }
-          break;
+
            if( oldMat.sceneIndex == SIZE_MAX ) {
                DefaultLogger::get()->warn( format() << "Could not resolve global material reference \"" << oldMat.mName << "\"" );
                oldMat.sceneIndex = 0;
            }
            continue;
        }
      }
      if( oldMat.sceneIndex == SIZE_MAX )
      {
        DefaultLogger::get()->warn( format() << "Could not resolve global material reference \"" << oldMat.mName << "\"" );
        oldMat.sceneIndex = 0;
      }
      continue;
    }
        aiMaterial* mat = new aiMaterial;
        aiString name;
        name.Set( oldMat.mName);
        mat->AddProperty( &name, AI_MATKEY_NAME);
-        // Shading model: hardcoded to PHONG, there is no such information in an XFile
+        // Shading model: hard-coded to PHONG, there is no such information in an XFile
        // FIX (aramis): If the specular exponent is 0, use gouraud shading. This is a bugfix
        // for some models in the SDK (e.g. good old tiny.x)
        int shadeMode = (int)oldMat.mSpecularExponent == 0.0f
@ -630,8 +607,8 @@ void XFileImporter::ConvertMaterials( aiScene* pScene, std::vector<XFile::Materi
        mat->AddProperty<int>( &shadeMode, 1, AI_MATKEY_SHADING_MODEL);
        // material colours
-    // Unclear: there's no ambient colour, but emissive. What to put for ambient?
+        // Unclear: there's no ambient colour, but emissive. What to put for ambient?
-    // Probably nothing at all, let the user select a suitable default.
+        // Probably nothing at all, let the user select a suitable default.
        mat->AddProperty( &oldMat.mEmissive, 1, AI_MATKEY_COLOR_EMISSIVE);
        mat->AddProperty( &oldMat.mDiffuse, 1, AI_MATKEY_COLOR_DIFFUSE);
        mat->AddProperty( &oldMat.mSpecular, 1, AI_MATKEY_COLOR_SPECULAR);
@ -639,36 +616,33 @@ void XFileImporter::ConvertMaterials( aiScene* pScene, std::vector<XFile::Materi
        // texture, if there is one
-        if (1 == oldMat.mTextures.size())
+        if (1 == oldMat.mTextures.size() ) {
        {
            const XFile::TexEntry& otex = oldMat.mTextures.back();
-            if (otex.mName.length())
+            if (otex.mName.length()) {
            {
                // if there is only one texture assume it contains the diffuse color
                aiString tex( otex.mName);
-                if( otex.mIsNormalMap)
+                if ( otex.mIsNormalMap ) {
-                    mat->AddProperty( &tex, AI_MATKEY_TEXTURE_NORMALS(0));
+                    mat->AddProperty( &tex, AI_MATKEY_TEXTURE_NORMALS( 0 ) );
-                else
+                } else {
-                    mat->AddProperty( &tex, AI_MATKEY_TEXTURE_DIFFUSE(0));
+                    mat->AddProperty( &tex, AI_MATKEY_TEXTURE_DIFFUSE( 0 ) );
                }
            }
-        }
+        } else {
        else
        {
            // Otherwise ... try to search for typical strings in the
            // texture's file name like 'bump' or 'diffuse'
            unsigned int iHM = 0,iNM = 0,iDM = 0,iSM = 0,iAM = 0,iEM = 0;
-            for( unsigned int b = 0; b < oldMat.mTextures.size(); b++)
+            for( unsigned int b = 0; b < oldMat.mTextures.size(); ++b ) {
            {
                const XFile::TexEntry& otex = oldMat.mTextures[b];
                std::string sz = otex.mName;
-                if (!sz.length())continue;
+                if ( !sz.length() ) {
-
+                    continue;
                }
                // find the file name
                //const size_t iLen = sz.length();
                std::string::size_type s = sz.find_last_of("\\/");
-                if (std::string::npos == s)
+                if ( std::string::npos == s ) {
                    s = 0;
                }
                // cut off the file extension
                std::string::size_type sExt = sz.find_last_of('.');
@ -677,36 +651,27 @@ void XFileImporter::ConvertMaterials( aiScene* pScene, std::vector<XFile::Materi
                }
                // convert to lower case for easier comparison
-                for( unsigned int c = 0; c < sz.length(); c++)
+                for ( unsigned int c = 0; c < sz.length(); ++c ) {
-                    if( isalpha( sz[c]))
+                    if ( isalpha( sz[ c ] ) ) {
-                        sz[c] = tolower( sz[c]);
+                        sz[ c ] = tolower( sz[ c ] );
-
+                    }
                }
                // Place texture filename property under the corresponding name
                aiString tex( oldMat.mTextures[b].mName);
                // bump map
-                if (std::string::npos != sz.find("bump", s) || std::string::npos != sz.find("height", s))
+                if (std::string::npos != sz.find("bump", s) || std::string::npos != sz.find("height", s)) {
                {
                    mat->AddProperty( &tex, AI_MATKEY_TEXTURE_HEIGHT(iHM++));
-                } else
+                } else if (otex.mIsNormalMap || std::string::npos != sz.find( "normal", s) || std::string::npos != sz.find("nm", s)) {
                if (otex.mIsNormalMap || std::string::npos != sz.find( "normal", s) || std::string::npos != sz.find("nm", s))
                {
                    mat->AddProperty( &tex, AI_MATKEY_TEXTURE_NORMALS(iNM++));
-                } else
+                } else if (std::string::npos != sz.find( "spec", s) || std::string::npos != sz.find( "glanz", s)) {
                if (std::string::npos != sz.find( "spec", s) || std::string::npos != sz.find( "glanz", s))
                {
                    mat->AddProperty( &tex, AI_MATKEY_TEXTURE_SPECULAR(iSM++));
-                } else
+                } else if (std::string::npos != sz.find( "ambi", s) || std::string::npos != sz.find( "env", s)) {
                if (std::string::npos != sz.find( "ambi", s) || std::string::npos != sz.find( "env", s))
                {
                    mat->AddProperty( &tex, AI_MATKEY_TEXTURE_AMBIENT(iAM++));
-                } else
+                } else if (std::string::npos != sz.find( "emissive", s) || std::string::npos != sz.find( "self", s)) {
                if (std::string::npos != sz.find( "emissive", s) || std::string::npos != sz.find( "self", s))
                {
                    mat->AddProperty( &tex, AI_MATKEY_TEXTURE_EMISSIVE(iEM++));
-                } else
+                } else {
                {
                    // Assume it is a diffuse texture
                    mat->AddProperty( &tex, AI_MATKEY_TEXTURE_DIFFUSE(iDM++));
                }
--- a/code/XFileParser.cpp
+++ b/code/XFileParser.cpp
@ -87,59 +87,60 @@ static void  dummy_free  (void* /*opaque*/, void* address)  {
 // ------------------------------------------------------------------------------------------------
 // Constructor. Creates a data structure out of the XFile given in the memory block.
 XFileParser::XFileParser( const std::vector<char>& pBuffer)
-{
+: mMajorVersion( 0 )
-    mMajorVersion = mMinorVersion = 0;
+, mMinorVersion( 0 )
-    mIsBinaryFormat = false;
+, mIsBinaryFormat( false )
-    mBinaryNumCount = 0;
+, mBinaryNumCount( 0 )
-    P = End = NULL;
+, mP( nullptr )
-    mLineNumber = 0;
+, mEnd( nullptr )
-    mScene = NULL;
+, mLineNumber( 0 )
-
+, mScene( nullptr ) {
    // vector to store uncompressed file for INFLATE'd X files
    std::vector<char> uncompressed;
    // set up memory pointers
-    P = &pBuffer.front();
+    mP = &pBuffer.front();
-    End = P + pBuffer.size() - 1;
+    mEnd = mP + pBuffer.size() - 1;
    // check header
-    if( strncmp( P, "xof ", 4) != 0)
+    if ( 0 != strncmp( mP, "xof ", 4 ) ) {
-        throw DeadlyImportError( "Header mismatch, file is not an XFile.");
+        throw DeadlyImportError( "Header mismatch, file is not an XFile." );
    }
    // read version. It comes in a four byte format such as "0302"
-    mMajorVersion = (unsigned int)(P[4] - 48) * 10 + (unsigned int)(P[5] - 48);
+    mMajorVersion = (unsigned int)(mP[4] - 48) * 10 + (unsigned int)(mP[5] - 48);
-    mMinorVersion = (unsigned int)(P[6] - 48) * 10 + (unsigned int)(P[7] - 48);
+    mMinorVersion = (unsigned int)(mP[6] - 48) * 10 + (unsigned int)(mP[7] - 48);
    bool compressed = false;
    // txt - pure ASCII text format
-    if( strncmp( P + 8, "txt ", 4) == 0)
+    if( strncmp( mP + 8, "txt ", 4) == 0)
        mIsBinaryFormat = false;
    // bin - Binary format
-    else if( strncmp( P + 8, "bin ", 4) == 0)
+    else if( strncmp( mP + 8, "bin ", 4) == 0)
        mIsBinaryFormat = true;
    // tzip - Inflate compressed text format
-    else if( strncmp( P + 8, "tzip", 4) == 0)
+    else if( strncmp( mP + 8, "tzip", 4) == 0)
    {
        mIsBinaryFormat = false;
        compressed = true;
    }
    // bzip - Inflate compressed binary format
-    else if( strncmp( P + 8, "bzip", 4) == 0)
+    else if( strncmp( mP + 8, "bzip", 4) == 0)
    {
        mIsBinaryFormat = true;
        compressed = true;
    }
    else ThrowException( format() << "Unsupported xfile format '" <<
-       P[8] << P[9] << P[10] << P[11] << "'");
+       mP[8] << mP[9] << mP[10] << mP[11] << "'");
    // float size
-    mBinaryFloatSize = (unsigned int)(P[12] - 48) * 1000
+    mBinaryFloatSize = (unsigned int)(mP[12] - 48) * 1000
-        + (unsigned int)(P[13] - 48) * 100
+        + (unsigned int)(mP[13] - 48) * 100
-        + (unsigned int)(P[14] - 48) * 10
+        + (unsigned int)(mP[14] - 48) * 10
-        + (unsigned int)(P[15] - 48);
+        + (unsigned int)(mP[15] - 48);
    if( mBinaryFloatSize != 32 && mBinaryFloatSize != 64)
        ThrowException( format() << "Unknown float size " << mBinaryFloatSize << " specified in xfile header." );
@ -147,7 +148,7 @@ XFileParser::XFileParser( const std::vector<char>& pBuffer)
    // The x format specifies size in bits, but we work in bytes
    mBinaryFloatSize /= 8;
-    P += 16;
+    mP += 16;
    // If this is a compressed X file, apply the inflate algorithm to it
    if (compressed)
@ -186,13 +187,13 @@ XFileParser::XFileParser( const std::vector<char>& pBuffer)
        ::inflateInit2(&stream, -MAX_WBITS);
        // skip unknown data (checksum, flags?)
-        P += 6;
+        mP += 6;
        // First find out how much storage we'll need. Count sections.
-        const char* P1       = P;
+        const char* P1       = mP;
        unsigned int est_out = 0;
-        while (P1 + 3 < End)
+        while (P1 + 3 < mEnd)
        {
            // read next offset
            uint16_t ofs = *((uint16_t*)P1);
@ -216,18 +217,18 @@ XFileParser::XFileParser( const std::vector<char>& pBuffer)
        // Allocate storage and terminating zero and do the actual uncompressing
        uncompressed.resize(est_out + 1);
        char* out = &uncompressed.front();
-        while (P + 3 < End)
+        while (mP + 3 < mEnd)
        {
-            uint16_t ofs = *((uint16_t*)P);
+            uint16_t ofs = *((uint16_t*)mP);
            AI_SWAP2(ofs);
-            P += 4;
+            mP += 4;
-            if (P + ofs > End + 2) {
+            if (mP + ofs > mEnd + 2) {
                throw DeadlyImportError("X: Unexpected EOF in compressed chunk");
            }
            // push data to the stream
-            stream.next_in   = (Bytef*)P;
+            stream.next_in   = (Bytef*)mP;
            stream.avail_in  = ofs;
            stream.next_out  = (Bytef*)out;
            stream.avail_out = MSZIP_BLOCK;
@ -242,15 +243,15 @@ XFileParser::XFileParser( const std::vector<char>& pBuffer)
            // and advance to the next offset
            out +=  MSZIP_BLOCK - stream.avail_out;
-            P   += ofs;
+            mP   += ofs;
        }
        // terminate zlib
        ::inflateEnd(&stream);
        // ok, update pointers to point to the uncompressed file data
-        P = &uncompressed[0];
+        mP = &uncompressed[0];
-        End = out;
+        mEnd = out;
        // FIXME: we don't need the compressed data anymore, could release
        // it already for better memory usage. Consider breaking const-co.
@ -465,12 +466,11 @@ void XFileParser::ParseDataObjectMesh( Mesh* pMesh)
    // read position faces
    unsigned int numPosFaces = ReadInt();
    pMesh->mPosFaces.resize( numPosFaces);
-    for( unsigned int a = 0; a < numPosFaces; a++)
+    for( unsigned int a = 0; a < numPosFaces; ++a) {
    {
        // read indices
        unsigned int numIndices = ReadInt();
        Face& face = pMesh->mPosFaces[a];
-        for (unsigned int b = 0; b < numIndices; b++) {
+        for (unsigned int b = 0; b < numIndices; ++b) {
            face.mIndices.push_back( ReadInt() );
        }
        TestForSeparator();
@ -478,11 +478,10 @@ void XFileParser::ParseDataObjectMesh( Mesh* pMesh)
    // here, other data objects may follow
    bool running = true;
-    while ( running )
+    while ( running ) {
    {
        std::string objectName = GetNextToken();
-        if( objectName.size() == 0)
+        if( objectName.empty() )
            ThrowException( "Unexpected end of file while parsing mesh structure");
        else
        if( objectName == "}")
@ -517,8 +516,10 @@ void XFileParser::ParseDataObjectMesh( Mesh* pMesh)
 }
 // ------------------------------------------------------------------------------------------------
-void XFileParser::ParseDataObjectSkinWeights( Mesh *pMesh)
+void XFileParser::ParseDataObjectSkinWeights( Mesh *pMesh) {
-{
+    if ( nullptr == pMesh ) {
        return;
    }
    readHeadOfDataObject();
    std::string transformNodeName;
@ -647,8 +648,8 @@ void XFileParser::ParseDataObjectMeshVertexColors( Mesh* pMesh)
        if( !mIsBinaryFormat)
        {
            FindNextNoneWhiteSpace();
-            if( *P == ';' || *P == ',')
+            if( *mP == ';' || *mP == ',')
-                P++;
+                mP++;
        }
    }
@ -678,8 +679,8 @@ void XFileParser::ParseDataObjectMeshMaterialList( Mesh* pMesh)
    // commented out version check, as version 03.03 exported from blender also has 2 semicolons
    if( !mIsBinaryFormat) // && MajorVersion == 3 && MinorVersion <= 2)
    {
-        if(P < End && *P == ';')
+        if(mP < mEnd && *mP == ';')
-            ++P;
+            ++mP;
    }
    // if there was only a single material index, replicate it on all faces
@ -1029,12 +1030,12 @@ void XFileParser::TestForSeparator()
    return;
  FindNextNoneWhiteSpace();
-  if( P >= End)
+  if( mP >= mEnd)
    return;
  // test and skip
-  if( *P == ';' || *P == ',')
+  if( *mP == ';' || *mP == ',')
-    P++;
+    mP++;
 }
 // ------------------------------------------------------------------------------------------------
@ -1046,62 +1047,73 @@ void XFileParser::readHeadOfDataObject( std::string* poName)
        if( poName)
            *poName = nameOrBrace;
-        if( GetNextToken() != "{")
+        if ( GetNextToken() != "{" ) {
-            ThrowException( "Opening brace expected.");
+            delete mScene;
            ThrowException( "Opening brace expected." );
        }
    }
 }
 // ------------------------------------------------------------------------------------------------
-std::string XFileParser::GetNextToken()
+std::string XFileParser::GetNextToken() {
 {
    std::string s;
    // process binary-formatted file
-    if( mIsBinaryFormat)
+    if( mIsBinaryFormat) {
    {
        // in binary mode it will only return NAME and STRING token
        // and (correctly) skip over other tokens.
-
+        if ( mEnd - mP < 2 ) {
-        if( End - P < 2) return s;
+            return s;
        }
        unsigned int tok = ReadBinWord();
        unsigned int len;
        // standalone tokens
-        switch( tok)
+        switch( tok ) {
-        {
+            case 1: {
            case 1:
                // name token
-                if( End - P < 4) return s;
+                if ( mEnd - mP < 4 ) {
                    return s;
                }
                len = ReadBinDWord();
-                if( End - P < int(len)) return s;
+                const int bounds = int( mEnd - mP );
-                s = std::string(P, len);
+                const int iLen   = int( len );
-                P += len;
+                if ( iLen < 0 ) {
-                return s;
+                    return s;
                }
                if ( bounds < iLen ) {
                    return s;
                }
                s = std::string( mP, len );
                mP += len;
            }
            return s;
            case 2:
                // string token
-                if( End - P < 4) return s;
+                if( mEnd - mP < 4) return s;
                len = ReadBinDWord();
-                if( End - P < int(len)) return s;
+                if( mEnd - mP < int(len)) return s;
-                s = std::string(P, len);
+                s = std::string(mP, len);
-                P += (len + 2);
+                mP += (len + 2);
                return s;
            case 3:
                // integer token
-                P += 4;
+                mP += 4;
                return "<integer>";
            case 5:
                // GUID token
-                P += 16;
+                mP += 16;
                return "<guid>";
            case 6:
-                if( End - P < 4) return s;
+                if( mEnd - mP < 4) return s;
                len = ReadBinDWord();
-                P += (len * 4);
+                mP += (len * 4);
                return "<int_list>";
            case 7:
-                if( End - P < 4) return s;
+                if( mEnd - mP < 4) return s;
                len = ReadBinDWord();
-                P += (len * mBinaryFloatSize);
+                mP += (len * mBinaryFloatSize);
                return "<flt_list>";
            case 0x0a:
                return "{";
@ -1159,19 +1171,19 @@ std::string XFileParser::GetNextToken()
    else
    {
        FindNextNoneWhiteSpace();
-        if( P >= End)
+        if( mP >= mEnd)
            return s;
-        while( (P < End) && !isspace( (unsigned char) *P))
+        while( (mP < mEnd) && !isspace( (unsigned char) *mP))
        {
            // either keep token delimiters when already holding a token, or return if first valid char
-            if( *P == ';' || *P == '}' || *P == '{' || *P == ',')
+            if( *mP == ';' || *mP == '}' || *mP == '{' || *mP == ',')
            {
                if( !s.size())
-                    s.append( P++, 1);
+                    s.append( mP++, 1);
                break; // stop for delimiter
            }
-            s.append( P++, 1);
+            s.append( mP++, 1);
        }
    }
    return s;
@ -1186,18 +1198,18 @@ void XFileParser::FindNextNoneWhiteSpace()
    bool running = true;
    while( running )
    {
-        while( P < End && isspace( (unsigned char) *P))
+        while( mP < mEnd && isspace( (unsigned char) *mP))
        {
-            if( *P == '\n')
+            if( *mP == '\n')
                mLineNumber++;
-            ++P;
+            ++mP;
        }
-        if( P >= End)
+        if( mP >= mEnd)
            return;
        // check if this is a comment
-        if( (P[0] == '/' && P[1] == '/') || P[0] == '#')
+        if( (mP[0] == '/' && mP[1] == '/') || mP[0] == '#')
            ReadUntilEndOfLine();
        else
            break;
@ -1214,22 +1226,30 @@ void XFileParser::GetNextTokenAsString( std::string& poString)
    }
    FindNextNoneWhiteSpace();
-    if( P >= End)
+    if ( mP >= mEnd ) {
-        ThrowException( "Unexpected end of file while parsing string");
+        delete mScene;
        ThrowException( "Unexpected end of file while parsing string" );
    }
-    if( *P != '"')
+    if ( *mP != '"' ) {
-        ThrowException( "Expected quotation mark.");
+        delete mScene;
-    ++P;
+        ThrowException( "Expected quotation mark." );
    }
    ++mP;
-    while( P < End && *P != '"')
+    while( mP < mEnd && *mP != '"')
-        poString.append( P++, 1);
+        poString.append( mP++, 1);
-    if( P >= End-1)
+    if ( mP >= mEnd - 1 ) {
-        ThrowException( "Unexpected end of file while parsing string");
+        delete mScene;
        ThrowException( "Unexpected end of file while parsing string" );
    }
-    if( P[1] != ';' || P[0] != '"')
+    if ( mP[ 1 ] != ';' || mP[ 0 ] != '"' ) {
-        ThrowException( "Expected quotation mark and semicolon at the end of a string.");
+        delete mScene;
-    P+=2;
+        ThrowException( "Expected quotation mark and semicolon at the end of a string." );
    }
    mP+=2;
 }
 // ------------------------------------------------------------------------------------------------
@ -1238,35 +1258,35 @@ void XFileParser::ReadUntilEndOfLine()
    if( mIsBinaryFormat)
        return;
-    while( P < End)
+    while( mP < mEnd)
    {
-        if( *P == '\n' || *P == '\r')
+        if( *mP == '\n' || *mP == '\r')
        {
-            ++P; mLineNumber++;
+            ++mP; mLineNumber++;
            return;
        }
-        ++P;
+        ++mP;
    }
 }
 // ------------------------------------------------------------------------------------------------
 unsigned short XFileParser::ReadBinWord()
 {
-    ai_assert(End - P >= 2);
+    ai_assert(mEnd - mP >= 2);
-    const unsigned char* q = (const unsigned char*) P;
+    const unsigned char* q = (const unsigned char*) mP;
    unsigned short tmp = q[0] | (q[1] << 8);
-    P += 2;
+    mP += 2;
    return tmp;
 }
 // ------------------------------------------------------------------------------------------------
-unsigned int XFileParser::ReadBinDWord()
+unsigned int XFileParser::ReadBinDWord() {
-{
+    ai_assert(mEnd - mP >= 4);
-    ai_assert(End - P >= 4);
+
-    const unsigned char* q = (const unsigned char*) P;
+    const unsigned char* q = (const unsigned char*) mP;
    unsigned int tmp = q[0] | (q[1] << 8) | (q[2] << 16) | (q[3] << 24);
-    P += 4;
+    mP += 4;
    return tmp;
 }
@ -1275,20 +1295,20 @@ unsigned int XFileParser::ReadInt()
 {
    if( mIsBinaryFormat)
    {
-        if( mBinaryNumCount == 0 && End - P >= 2)
+        if( mBinaryNumCount == 0 && mEnd - mP >= 2)
        {
            unsigned short tmp = ReadBinWord(); // 0x06 or 0x03
-            if( tmp == 0x06 && End - P >= 4) // array of ints follows
+            if( tmp == 0x06 && mEnd - mP >= 4) // array of ints follows
                mBinaryNumCount = ReadBinDWord();
            else // single int follows
                mBinaryNumCount = 1;
        }
        --mBinaryNumCount;
-        if ( End - P >= 4) {
+        if ( mEnd - mP >= 4) {
            return ReadBinDWord();
        } else {
-            P = End;
+            mP = mEnd;
            return 0;
        }
    } else
@ -1299,24 +1319,24 @@ unsigned int XFileParser::ReadInt()
        // check preceding minus sign
        bool isNegative = false;
-        if( *P == '-')
+        if( *mP == '-')
        {
            isNegative = true;
-            P++;
+            mP++;
        }
        // at least one digit expected
-        if( !isdigit( *P))
+        if( !isdigit( *mP))
            ThrowException( "Number expected.");
        // read digits
        unsigned int number = 0;
-        while( P < End)
+        while( mP < mEnd)
        {
-            if( !isdigit( *P))
+            if( !isdigit( *mP))
                break;
-            number = number * 10 + (*P - 48);
+            number = number * 10 + (*mP - 48);
-            P++;
+            mP++;
        }
        CheckForSeparator();
@ -1329,34 +1349,35 @@ ai_real XFileParser::ReadFloat()
 {
    if( mIsBinaryFormat)
    {
-        if( mBinaryNumCount == 0 && End - P >= 2)
+        if( mBinaryNumCount == 0 && mEnd - mP >= 2)
        {
            unsigned short tmp = ReadBinWord(); // 0x07 or 0x42
-            if( tmp == 0x07 && End - P >= 4) // array of floats following
+            if( tmp == 0x07 && mEnd - mP >= 4) // array of floats following
                mBinaryNumCount = ReadBinDWord();
            else // single float following
                mBinaryNumCount = 1;
        }
        --mBinaryNumCount;
-        if( mBinaryFloatSize == 8)
+        if( mBinaryFloatSize == 8) {
-        {
+            if( mEnd - mP >= 8) {
-            if( End - P >= 8) {
+                double res;
-                ai_real result = (ai_real) (*(double*) P);
+                ::memcpy( &res, mP, 8 );
-                P += 8;
+                mP += 8;
                const ai_real result( static_cast<ai_real>( res ) );
                return result;
            } else {
-                P = End;
+                mP = mEnd;
                return 0;
            }
-        } else
+        } else {
-        {
+            if( mEnd - mP >= 4) {
-            if( End - P >= 4) {
+                ai_real result;
-                ai_real result = *(ai_real*) P;
+                ::memcpy( &result, mP, 4 );
-                P += 4;
+                mP += 4;
                return result;
            } else {
-                P = End;
+                mP = mEnd;
                return 0;
            }
        }
@ -1367,21 +1388,21 @@ ai_real XFileParser::ReadFloat()
    // check for various special strings to allow reading files from faulty exporters
    // I mean you, Blender!
    // Reading is safe because of the terminating zero
-    if( strncmp( P, "-1.#IND00", 9) == 0 || strncmp( P, "1.#IND00", 8) == 0)
+    if( strncmp( mP, "-1.#IND00", 9) == 0 || strncmp( mP, "1.#IND00", 8) == 0)
    {
-        P += 9;
+        mP += 9;
        CheckForSeparator();
        return 0.0;
    } else
-    if( strncmp( P, "1.#QNAN0", 8) == 0)
+    if( strncmp( mP, "1.#QNAN0", 8) == 0)
    {
-        P += 8;
+        mP += 8;
        CheckForSeparator();
        return 0.0;
    }
    ai_real result = 0.0;
-    P = fast_atoreal_move<ai_real>( P, result);
+    mP = fast_atoreal_move<ai_real>( mP, result);
    CheckForSeparator();
@ -1438,15 +1459,14 @@ aiColor3D XFileParser::ReadRGB()
 // ------------------------------------------------------------------------------------------------
 // Throws an exception with a line number and the given text.
-AI_WONT_RETURN void XFileParser::ThrowException( const std::string& pText)
+AI_WONT_RETURN void XFileParser::ThrowException( const std::string& pText) {
-{
+    if ( mIsBinaryFormat ) {
-    if( mIsBinaryFormat)
+        throw DeadlyImportError( pText );
-        throw DeadlyImportError( pText);
+    } else {
    else
        throw DeadlyImportError( format() << "Line " << mLineNumber << ": " << pText );
    }
 }
 // ------------------------------------------------------------------------------------------------
 // Filters the imported hierarchy for some degenerated cases that some exporters produce.
 void XFileParser::FilterHierarchy( XFile::Node* pNode)
--- a/code/XFileParser.h
+++ b/code/XFileParser.h
@ -49,10 +49,8 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include <assimp/types.h>
-namespace Assimp
+namespace Assimp {
-{
+    namespace XFile {
    namespace XFile
    {
        struct Node;
        struct Mesh;
        struct Scene;
@ -61,21 +59,20 @@ namespace Assimp
        struct AnimBone;
    }
-/** The XFileParser reads a XFile either in text or binary form and builds a temporary
+/**
- * data structure out of it.
+  *     @brief  The XFileParser reads a XFile either in text or binary form and builds a temporary
- */
+  *             data structure out of it.
-class XFileParser
+  */
-{
+class XFileParser {
 public:
-    /** Constructor. Creates a data structure out of the XFile given in the memory block.
+    /// Constructor. Creates a data structure out of the XFile given in the memory block.
-     * @param pBuffer Null-terminated memory buffer containing the XFile
+    /// @param pBuffer Null-terminated memory buffer containing the XFile
     */
    explicit XFileParser( const std::vector<char>& pBuffer);
-    /** Destructor. Destroys all imported data along with it */
+    /// Destructor. Destroys all imported data along with it
    ~XFileParser();
-    /** Returns the temporary representation of the imported data */
+    /// Returns the temporary representation of the imported data.
    XFile::Scene* GetImportedData() const { return mScene; }
 protected:
@ -101,10 +98,10 @@ protected:
    //! places pointer to next begin of a token, and ignores comments
    void FindNextNoneWhiteSpace();
-    //! returns next parseable token. Returns empty string if no token there
+    //! returns next valid token. Returns empty string if no token there
    std::string GetNextToken();
-    //! reads header of dataobject including the opening brace.
+    //! reads header of data object including the opening brace.
    //! returns false if error happened, and writes name of object
    //! if there is one
    void readHeadOfDataObject( std::string* poName = NULL);
@ -118,8 +115,8 @@ protected:
    //! checks for a separator char, either a ',' or a ';'
    void CheckForSeparator();
-  /// tests and possibly consumes a separator char, but does nothing if there was no separator
+    /// tests and possibly consumes a separator char, but does nothing if there was no separator
-  void TestForSeparator();
+    void TestForSeparator();
    //! reads a x file style string
    void GetNextTokenAsString( std::string& poString);
@ -138,27 +135,23 @@ protected:
    /** Throws an exception with a line number and the given text. */
    AI_WONT_RETURN void ThrowException( const std::string& pText) AI_WONT_RETURN_SUFFIX;
-    /** Filters the imported hierarchy for some degenerated cases that some exporters produce.
+    /**
-     * @param pData The sub-hierarchy to filter
+      * @brief  Filters the imported hierarchy for some degenerated cases that some exporters produce.
-     */
+      * @param pData The sub-hierarchy to filter
      */
    void FilterHierarchy( XFile::Node* pNode);
 protected:
    unsigned int mMajorVersion, mMinorVersion; ///< version numbers
    bool mIsBinaryFormat; ///< true if the file is in binary, false if it's in text form
    unsigned int mBinaryFloatSize; ///< float size in bytes, either 4 or 8
-    // counter for number arrays in binary format
+    unsigned int mBinaryNumCount; /// < counter for number arrays in binary format
-    unsigned int mBinaryNumCount;
+    const char* mP;
-
+    const char* mEnd;
-    const char* P;
+    unsigned int mLineNumber; ///< Line number when reading in text format
-    const char* End;
+    XFile::Scene* mScene; ///< Imported data
    /// Line number when reading in text format
    unsigned int mLineNumber;
    /// Imported data
    XFile::Scene* mScene;
 };
-}
+} //! ns Assimp
 #endif // AI_XFILEPARSER_H_INC
--- a/code/XGLLoader.cpp
+++ b/code/XGLLoader.cpp
@ -72,17 +72,6 @@ using namespace irr::io;
 #endif
 // scopeguard for a malloc'ed buffer
 struct free_it
 {
    free_it(void* free) : free(free) {}
    ~free_it() {
        ::free(this->free);
    }
    void* free;
 };
 namespace Assimp { // this has to be in here because LogFunctions is in ::Assimp
    template<> const char* LogFunctions<XGLImporter>::Prefix()
    {
@ -155,8 +144,7 @@ void XGLImporter::InternReadFile( const std::string& pFile,
    aiScene* pScene, IOSystem* pIOHandler)
 {
 #ifndef ASSIMP_BUILD_NO_COMPRESSED_XGL
-    Bytef* dest = NULL;
+    std::vector<Bytef> uncompressed;
    free_it free_it_really(dest);
 #endif
    m_scene = pScene;
@ -192,6 +180,7 @@ void XGLImporter::InternReadFile( const std::string& pFile,
        size_t total = 0l;
        // TODO: be smarter about this, decompress directly into heap buffer
        // and decompress the data .... do 1k chunks in the hope that we won't kill the stack
    #define MYBLOCK 1024
        Bytef block[MYBLOCK];
@ -206,8 +195,8 @@ void XGLImporter::InternReadFile( const std::string& pFile,
            }
            const size_t have = MYBLOCK - zstream.avail_out;
            total += have;
-            dest = reinterpret_cast<Bytef*>( realloc(dest,total) );
+            uncompressed.resize(total);
-            memcpy(dest + total - have,block,have);
+            memcpy(uncompressed.data() + total - have,block,have);
        }
        while (ret != Z_STREAM_END);
@ -215,7 +204,7 @@ void XGLImporter::InternReadFile( const std::string& pFile,
        inflateEnd(&zstream);
        // replace the input stream with a memory stream
-        stream.reset(new MemoryIOStream(reinterpret_cast<uint8_t*>(dest),total));
+        stream.reset(new MemoryIOStream(reinterpret_cast<uint8_t*>(uncompressed.data()),total));
 #endif
    }
--- a/code/glTF2Asset.h
+++ b/code/glTF2Asset.h
@ -137,7 +137,7 @@ namespace glTF2
    // Vec/matrix types, as raw float arrays
    typedef float (vec3)[3];
    typedef float (vec4)[4];
-	typedef float (mat4)[16];
+    typedef float (mat4)[16];
    namespace Util
    {
@ -166,33 +166,8 @@ namespace glTF2
    //! Magic number for GLB files
 	#define AI_GLB_MAGIC_NUMBER "glTF"
 	#include <assimp/pbrmaterial.h>
    #define AI_MATKEY_GLTF_PBRMETALLICROUGHNESS_BASE_COLOR_FACTOR "$mat.gltf.pbrMetallicRoughness.baseColorFactor", 0, 0
 	#define AI_MATKEY_GLTF_PBRMETALLICROUGHNESS_METALLIC_FACTOR "$mat.gltf.pbrMetallicRoughness.metallicFactor", 0, 0
 	#define AI_MATKEY_GLTF_PBRMETALLICROUGHNESS_ROUGHNESS_FACTOR "$mat.gltf.pbrMetallicRoughness.roughnessFactor", 0, 0
    #define AI_MATKEY_GLTF_PBRMETALLICROUGHNESS_BASE_COLOR_TEXTURE aiTextureType_DIFFUSE, 1
 	#define AI_MATKEY_GLTF_PBRMETALLICROUGHNESS_METALLICROUGHNESS_TEXTURE aiTextureType_UNKNOWN, 0
 	#define AI_MATKEY_GLTF_ALPHAMODE "$mat.gltf.alphaMode", 0, 0
 	#define AI_MATKEY_GLTF_ALPHACUTOFF "$mat.gltf.alphaCutoff", 0, 0
 	#define AI_MATKEY_GLTF_PBRSPECULARGLOSSINESS "$mat.gltf.pbrSpecularGlossiness", 0, 0
 	#define AI_MATKEY_GLTF_PBRSPECULARGLOSSINESS_GLOSSINESS_FACTOR "$mat.gltf.pbrMetallicRoughness.glossinessFactor", 0, 0
 	#define _AI_MATKEY_GLTF_TEXTURE_TEXCOORD_BASE "$tex.file.texCoord"
 	#define _AI_MATKEY_GLTF_MAPPINGNAME_BASE "$tex.mappingname"
 	#define _AI_MATKEY_GLTF_MAPPINGID_BASE "$tex.mappingid"
 	#define _AI_MATKEY_GLTF_MAPPINGFILTER_MAG_BASE "$tex.mappingfiltermag"
 	#define _AI_MATKEY_GLTF_MAPPINGFILTER_MIN_BASE "$tex.mappingfiltermin"
    #define _AI_MATKEY_GLTF_SCALE_BASE "$tex.scale"
    #define _AI_MATKEY_GLTF_STRENGTH_BASE "$tex.strength"
 	#define AI_MATKEY_GLTF_TEXTURE_TEXCOORD _AI_MATKEY_GLTF_TEXTURE_TEXCOORD_BASE, type, N
 	#define AI_MATKEY_GLTF_MAPPINGNAME(type, N) _AI_MATKEY_GLTF_MAPPINGNAME_BASE, type, N
 	#define AI_MATKEY_GLTF_MAPPINGID(type, N) _AI_MATKEY_GLTF_MAPPINGID_BASE, type, N
 	#define AI_MATKEY_GLTF_MAPPINGFILTER_MAG(type, N) _AI_MATKEY_GLTF_MAPPINGFILTER_MAG_BASE, type, N
 	#define AI_MATKEY_GLTF_MAPPINGFILTER_MIN(type, N) _AI_MATKEY_GLTF_MAPPINGFILTER_MIN_BASE, type, N
    #define AI_MATKEY_GLTF_TEXTURE_SCALE(type, N) _AI_MATKEY_GLTF_SCALE_BASE, type, N
    #define AI_MATKEY_GLTF_TEXTURE_STRENGTH(type, N) _AI_MATKEY_GLTF_STRENGTH_BASE, type, N
    #ifdef ASSIMP_API
        #include "./../include/assimp/Compiler/pushpack1.h"
    #endif
--- a/code/glTF2Asset.inl
+++ b/code/glTF2Asset.inl
@ -669,7 +669,7 @@ inline Image::Image()
 }
-inline void Image::Read(Value& obj, Asset& /*r*/)
+inline void Image::Read(Value& obj, Asset& r)
 {
    if (!mDataLength) {
        if (Value* uri = FindString(obj, "uri")) {
@ -686,6 +686,19 @@ inline void Image::Read(Value& obj, Asset& /*r*/)
                this->uri = uristr;
            }
        }
        else if (Value* bufferViewVal = FindUInt(obj, "bufferView")) {
            this->bufferView = r.bufferViews.Retrieve(bufferViewVal->GetUint());
            Ref<Buffer> buffer = this->bufferView->buffer;
            this->mDataLength = this->bufferView->byteLength;
            // maybe this memcpy could be avoided if aiTexture does not delete[] pcData at destruction.
            this->mData = new uint8_t [this->mDataLength];
            memcpy(this->mData, buffer->GetPointer() + this->bufferView->byteOffset, this->mDataLength);
            if (Value* mtype = FindString(obj, "mimeType")) {
                this->mimeType = mtype->GetString();
            }
        }
    }
 }
--- a/code/glTF2Exporter.cpp
+++ b/code/glTF2Exporter.cpp
@ -316,11 +316,9 @@ void glTF2Exporter::GetMatTex(const aiMaterial* mat, Ref<Texture>& texture, aiTe
            std::string path = tex.C_Str();
            if (path.size() > 0) {
-                if (path[0] != '*') {
+                std::map<std::string, unsigned int>::iterator it = mTexturesByPath.find(path);
-                    std::map<std::string, unsigned int>::iterator it = mTexturesByPath.find(path);
+                if (it != mTexturesByPath.end()) {
-                    if (it != mTexturesByPath.end()) {
+                    texture = mAsset->textures.Get(it->second);
                        texture = mAsset->textures.Get(it->second);
                    }
                }
                if (!texture) {
--- a/code/glTFAsset.inl
+++ b/code/glTFAsset.inl
@ -948,24 +948,24 @@ Ref<Buffer> buf = pAsset_Root.buffers.Get(pCompression_Open3DGC.Buffer);
 	size_t size_coordindex = ifs.GetNCoordIndex() * 3;// See float attributes note.
 	if(primitives[0].indices->count != size_coordindex)
-		throw DeadlyImportError("GLTF: Open3DGC. Compressed indices count (" + std::to_string(size_coordindex) +
+		throw DeadlyImportError("GLTF: Open3DGC. Compressed indices count (" + to_string(size_coordindex) +
-								") not equal to uncompressed (" + std::to_string(primitives[0].indices->count) + ").");
+								") not equal to uncompressed (" + to_string(primitives[0].indices->count) + ").");
 	size_coordindex *= sizeof(IndicesType);
 	// Coordinates
 	size_t size_coord = ifs.GetNCoord();// See float attributes note.
 	if(primitives[0].attributes.position[0]->count != size_coord)
-		throw DeadlyImportError("GLTF: Open3DGC. Compressed positions count (" + std::to_string(size_coord) +
+		throw DeadlyImportError("GLTF: Open3DGC. Compressed positions count (" + to_string(size_coord) +
-								") not equal to uncompressed (" + std::to_string(primitives[0].attributes.position[0]->count) + ").");
+								") not equal to uncompressed (" + to_string(primitives[0].attributes.position[0]->count) + ").");
 	size_coord *= 3 * sizeof(float);
 	// Normals
 	size_t size_normal = ifs.GetNNormal();// See float attributes note.
 	if(primitives[0].attributes.normal[0]->count != size_normal)
-		throw DeadlyImportError("GLTF: Open3DGC. Compressed normals count (" + std::to_string(size_normal) +
+		throw DeadlyImportError("GLTF: Open3DGC. Compressed normals count (" + to_string(size_normal) +
-								") not equal to uncompressed (" + std::to_string(primitives[0].attributes.normal[0]->count) + ").");
+								") not equal to uncompressed (" + to_string(primitives[0].attributes.normal[0]->count) + ").");
 	size_normal *= 3 * sizeof(float);
 	// Additional attributes.
@ -989,8 +989,8 @@ Ref<Buffer> buf = pAsset_Root.buffers.Get(pCompression_Open3DGC.Buffer);
 				if(idx_texcoord < primitives[0].attributes.texcoord.size())
 				{
 					if(primitives[0].attributes.texcoord[idx]->count != tval)
-						throw DeadlyImportError("GLTF: Open3DGC. Compressed texture coordinates count (" + std::to_string(tval) +
+						throw DeadlyImportError("GLTF: Open3DGC. Compressed texture coordinates count (" + to_string(tval) +
-												") not equal to uncompressed (" + std::to_string(primitives[0].attributes.texcoord[idx]->count) + ").");
+												") not equal to uncompressed (" + to_string(primitives[0].attributes.texcoord[idx]->count) + ").");
 					idx_texcoord++;
 				}
--- a/code/glTFImporter.cpp
+++ b/code/glTFImporter.cpp
@ -194,9 +194,16 @@ void glTFImporter::ImportMaterials(glTF::Asset& r)
            aimat->AddProperty(&str, AI_MATKEY_NAME);
        }
-        SetMaterialColorProperty(embeddedTexIdxs, r, mat.diffuse, aimat, aiTextureType_DIFFUSE, AI_MATKEY_COLOR_DIFFUSE);
+        SetMaterialColorProperty(embeddedTexIdxs, r, mat.ambient,  aimat, aiTextureType_AMBIENT,  AI_MATKEY_COLOR_AMBIENT );
        SetMaterialColorProperty(embeddedTexIdxs, r, mat.diffuse,  aimat, aiTextureType_DIFFUSE,  AI_MATKEY_COLOR_DIFFUSE );
        SetMaterialColorProperty(embeddedTexIdxs, r, mat.specular, aimat, aiTextureType_SPECULAR, AI_MATKEY_COLOR_SPECULAR);
-        SetMaterialColorProperty(embeddedTexIdxs, r, mat.ambient, aimat, aiTextureType_AMBIENT, AI_MATKEY_COLOR_AMBIENT);
+        SetMaterialColorProperty(embeddedTexIdxs, r, mat.emission, aimat, aiTextureType_EMISSIVE, AI_MATKEY_COLOR_EMISSIVE);
        aimat->AddProperty(&mat.doubleSided, 1, AI_MATKEY_TWOSIDED);
        if (mat.transparent && (mat.transparency != 1.0f)) {
            aimat->AddProperty(&mat.transparency, 1, AI_MATKEY_OPACITY);
        }
        if (mat.shininess > 0.f) {
            aimat->AddProperty(&mat.shininess, 1, AI_MATKEY_SHININESS);
--- a/code/simd.cpp
+++ b/code/simd.cpp
@ -0,0 +1,78 @@
 /*
 ---------------------------------------------------------------------------
 Open Asset Import Library (assimp)
 ---------------------------------------------------------------------------
 Copyright (c) 2006-2018, assimp team
 All rights reserved.
 Redistribution and use of this software in source and binary forms,
 with or without modification, are permitted provided that the following
 conditions are met:
 * Redistributions of source code must retain the above
 copyright notice, this list of conditions and the
 following disclaimer.
 * Redistributions in binary form must reproduce the above
 copyright notice, this list of conditions and the
 following disclaimer in the documentation and/or other
 materials provided with the distribution.
 * Neither the name of the assimp team, nor the names of its
 contributors may be used to endorse or promote products
 derived from this software without specific prior
 written permission of the assimp team.
 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ---------------------------------------------------------------------------
 */
 #include "simd.h"
 namespace Assimp {
 bool CPUSupportsSSE2() {
 #if defined(__x86_64__) || defined(_M_X64)
    //* x86_64 always has SSE2 instructions */
    return true;
 #elif defined(__GNUC__) && defined(i386)
    // for GCC x86 we check cpuid
    unsigned int d;
    __asm__(
        "pushl %%ebx\n\t"
        "cpuid\n\t"
        "popl %%ebx\n\t"
        : "=d" ( d )
        :"a" ( 1 ) );
    return ( d & 0x04000000 ) != 0;
 #elif (defined(_MSC_VER) && defined(_M_IX86))
    // also check cpuid for MSVC x86
    unsigned int d;
    __asm {
        xor     eax, eax
        inc eax
        push ebx
        cpuid
        pop ebx
        mov d, edx
    }
    return ( d & 0x04000000 ) != 0;
 #else
    return false;
 #endif
 }
 } // Namespace Assimp
--- a/code/simd.h
+++ b/code/simd.h
@ -0,0 +1,53 @@
 /*
 ---------------------------------------------------------------------------
 Open Asset Import Library (assimp)
 ---------------------------------------------------------------------------
 Copyright (c) 2006-2018, assimp team
 All rights reserved.
 Redistribution and use of this software in source and binary forms,
 with or without modification, are permitted provided that the following
 conditions are met:
 * Redistributions of source code must retain the above
 copyright notice, this list of conditions and the
 following disclaimer.
 * Redistributions in binary form must reproduce the above
 copyright notice, this list of conditions and the
 following disclaimer in the documentation and/or other
 materials provided with the distribution.
 * Neither the name of the assimp team, nor the names of its
 contributors may be used to endorse or promote products
 derived from this software without specific prior
 written permission of the assimp team.
 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ---------------------------------------------------------------------------
 */
 #pragma once
 #include <assimp/defs.h>
 namespace Assimp {
 /// @brief  Checks if the platform supports SSE2 optimization
 /// @return true, if SSE2 is supported. false if SSE2 is not supported.
 bool ASSIMP_API CPUSupportsSSE2();
 } // Namespace Assimp
--- a/Show More
+++ b/Show More