Merge branch 'master' into optimized_bonelimits

.github/workflows/ccpp.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v2
     - name: configure
       run: cmake CMakeLists.txt
     - name: build
@@ -23,7 +23,7 @@ jobs:
     runs-on: macos-latest
     
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v2
     - name: configure
       run: cmake CMakeLists.txt
     - name: build
@@ -35,7 +35,7 @@ jobs:
     runs-on: windows-latest
     
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v2
     - name: configure
       run: cmake CMakeLists.txt
     - name: build

CMakeLists.txt

@@ -238,11 +238,6 @@ SET(LIBASSIMP-DEV_COMPONENT "libassimp${ASSIMP_VERSION_MAJOR}.${ASSIMP_VERSION_M
 SET(CPACK_COMPONENTS_ALL assimp-bin ${LIBASSIMP_COMPONENT} ${LIBASSIMP-DEV_COMPONENT} assimp-dev)
 SET(ASSIMP_LIBRARY_SUFFIX "" CACHE STRING "Suffix to append to library names")
 
-IF( UNIX )
-  # Use GNUInstallDirs for Unix predefined directories
-  INCLUDE(GNUInstallDirs)
-ENDIF()
-
 # Grouped compiler settings
 IF ((CMAKE_C_COMPILER_ID MATCHES "GNU") AND NOT CMAKE_COMPILER_IS_MINGW)
   IF(NOT ASSIMP_HUNTER_ENABLED)
@@ -350,14 +345,6 @@ ELSE()
   SET(CMAKE_RUNTIME_OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/bin")
 ENDIF ()
 
-# Cache these to allow the user to override them manually.
-SET( ASSIMP_LIB_INSTALL_DIR "lib" CACHE STRING
-  "Path the built library files are installed to." )
-SET( ASSIMP_INCLUDE_INSTALL_DIR "include" CACHE STRING
-  "Path the header files are installed to." )
-SET( ASSIMP_BIN_INSTALL_DIR "bin" CACHE STRING
-  "Path the tool executables are installed to." )
-
 get_cmake_property(is_multi_config GENERATOR_IS_MULTI_CONFIG)
 
 IF (ASSIMP_INJECT_DEBUG_POSTFIX AND (is_multi_config OR CMAKE_BUILD_TYPE STREQUAL "Debug"))
@@ -417,6 +404,28 @@ ELSE()
   else()
     set(BUILD_LIB_TYPE STATIC)
   endif()
+
+  IF( UNIX )
+    # Use GNUInstallDirs for Unix predefined directories
+    INCLUDE(GNUInstallDirs)
+
+    SET( ASSIMP_LIB_INSTALL_DIR ${CMAKE_INSTALL_LIBDIR})
+    SET( ASSIMP_INCLUDE_INSTALL_DIR ${CMAKE_INSTALL_INCLUDEDIR})
+    SET( ASSIMP_BIN_INSTALL_DIR ${CMAKE_INSTALL_BINDIR})
+  ELSE()
+    # Cache these to allow the user to override them on non-Unix platforms
+    SET( ASSIMP_LIB_INSTALL_DIR "lib" CACHE STRING
+      "Path the built library files are installed to." )
+    SET( ASSIMP_INCLUDE_INSTALL_DIR "include" CACHE STRING
+      "Path the header files are installed to." )
+    SET( ASSIMP_BIN_INSTALL_DIR "bin" CACHE STRING
+      "Path the tool executables are installed to." )
+
+    SET(CMAKE_INSTALL_FULL_INCLUDEDIR ${CMAKE_INSTALL_PREFIX}/${ASSIMP_INCLUDE_INSTALL_DIR})
+    SET(CMAKE_INSTALL_FULL_LIBDIR ${CMAKE_INSTALL_PREFIX}/${ASSIMP_LIB_INSTALL_DIR})
+    SET(CMAKE_INSTALL_FULL_BINDIR ${CMAKE_INSTALL_PREFIX}/${ASSIMP_BIN_INSTALL_DIR})
+  ENDIF()
+
   CONFIGURE_FILE("${CMAKE_CURRENT_SOURCE_DIR}/assimp-config.cmake.in"         "${CMAKE_CURRENT_BINARY_DIR}/assimp-config.cmake" @ONLY IMMEDIATE)
   CONFIGURE_FILE("${CMAKE_CURRENT_SOURCE_DIR}/assimpTargets.cmake.in"         "${CMAKE_CURRENT_BINARY_DIR}/assimpTargets.cmake" @ONLY IMMEDIATE)
   IF (is_multi_config)

assimp.pc.in

@@ -1,7 +1,5 @@
-prefix=@CMAKE_INSTALL_PREFIX@
-exec_prefix=@CMAKE_INSTALL_PREFIX@/
-libdir=@CMAKE_INSTALL_PREFIX@/@ASSIMP_LIB_INSTALL_DIR@
-includedir=@CMAKE_INSTALL_PREFIX@/@ASSIMP_INCLUDE_INSTALL_DIR@
+libdir=@CMAKE_INSTALL_FULL_LIBDIR@
+includedir=@CMAKE_INSTALL_FULL_INCLUDEDIR@
 
 Name: @CMAKE_PROJECT_NAME@
 Description: Import various well-known 3D model formats in an uniform manner.

assimpTargets-debug.cmake.in

@@ -7,6 +7,8 @@ set(CMAKE_IMPORT_FILE_VERSION 1)
 
 set(ASSIMP_BUILD_SHARED_LIBS @BUILD_SHARED_LIBS@)
 
+get_property(LIB64 GLOBAL PROPERTY FIND_LIBRARY_USE_LIB64_PATHS)
+
 if(MSVC)
   if(MSVC_TOOLSET_VERSION)
     set(MSVC_PREFIX "vc${MSVC_TOOLSET_VERSION}")
@@ -35,8 +37,6 @@ if(MSVC)
   endif()
   set(ASSIMP_LIBRARY_SUFFIX "@ASSIMP_LIBRARY_SUFFIX@-${MSVC_PREFIX}-mt" CACHE STRING "the suffix for the assimp windows library" )
 
-  file(TO_NATIVE_PATH "${_IMPORT_PREFIX}" _IMPORT_PREFIX)
-
   if(ASSIMP_BUILD_SHARED_LIBS)
     set(sharedLibraryName "assimp${ASSIMP_LIBRARY_SUFFIX}@CMAKE_DEBUG_POSTFIX@@CMAKE_SHARED_LIBRARY_SUFFIX@")
     set(importLibraryName "assimp${ASSIMP_LIBRARY_SUFFIX}@CMAKE_DEBUG_POSTFIX@@CMAKE_IMPORT_LIBRARY_SUFFIX@")
@@ -44,22 +44,22 @@ if(MSVC)
     # Import target "assimp::assimp" for configuration "Debug"
     set_property(TARGET assimp::assimp APPEND PROPERTY IMPORTED_CONFIGURATIONS DEBUG)
     set_target_properties(assimp::assimp PROPERTIES
-      IMPORTED_IMPLIB_DEBUG "${_IMPORT_PREFIX}/lib/${importLibraryName}"
-      IMPORTED_LOCATION_DEBUG "${_IMPORT_PREFIX}/bin/${sharedLibraryName}"
+      IMPORTED_IMPLIB_DEBUG "@CMAKE_INSTALL_FULL_LIBDIR@/${importLibraryName}"
+      IMPORTED_LOCATION_DEBUG "@CMAKE_INSTALL_FULL_BINDIR@/${sharedLibraryName}"
     )
     list(APPEND _IMPORT_CHECK_TARGETS assimp::assimp )
-    list(APPEND _IMPORT_CHECK_FILES_FOR_assimp::assimp "${_IMPORT_PREFIX}/lib/${importLibraryName}")
-    list(APPEND _IMPORT_CHECK_FILES_FOR_assimp::assimp "${_IMPORT_PREFIX}/bin/${sharedLibraryName}" )
+    list(APPEND _IMPORT_CHECK_FILES_FOR_assimp::assimp "@CMAKE_INSTALL_FULL_LIBDIR@/${importLibraryName}")
+    list(APPEND _IMPORT_CHECK_FILES_FOR_assimp::assimp "@CMAKE_INSTALL_FULL_BINDIR@/${sharedLibraryName}" )
   else()
     set(staticLibraryName "assimp${ASSIMP_LIBRARY_SUFFIX}@CMAKE_DEBUG_POSTFIX@@CMAKE_STATIC_LIBRARY_SUFFIX@")
 
     # Import target "assimp::assimp" for configuration "Debug"
     set_property(TARGET assimp::assimp APPEND PROPERTY IMPORTED_CONFIGURATIONS DEBUG)
     set_target_properties(assimp::assimp PROPERTIES
-      IMPORTED_LOCATION_DEBUG "${_IMPORT_PREFIX}/lib/${staticLibraryName}"
+      IMPORTED_LOCATION_DEBUG "@CMAKE_INSTALL_FULL_LIBDIR@/${staticLibraryName}"
     )
     list(APPEND _IMPORT_CHECK_TARGETS assimp::assimp )
-    list(APPEND _IMPORT_CHECK_FILES_FOR_assimp::assimp "${_IMPORT_PREFIX}/lib/${staticLibraryName}")
+    list(APPEND _IMPORT_CHECK_FILES_FOR_assimp::assimp "@CMAKE_INSTALL_FULL_LIBDIR@/${staticLibraryName}")
   endif()
 
 else()
@@ -75,23 +75,20 @@ else()
     endif()
     set_target_properties(assimp::assimp PROPERTIES
       IMPORTED_SONAME_DEBUG "${sharedLibraryName}"
-      IMPORTED_LOCATION_DEBUG "${_IMPORT_PREFIX}/lib/${sharedLibraryName}"
+      IMPORTED_LOCATION_DEBUG "@CMAKE_INSTALL_FULL_LIBDIR@/${sharedLibraryName}"
     )
     list(APPEND _IMPORT_CHECK_TARGETS assimp::assimp )
-    list(APPEND _IMPORT_CHECK_FILES_FOR_assimp::assimp "${_IMPORT_PREFIX}/lib/${sharedLibraryName}" )
+    list(APPEND _IMPORT_CHECK_FILES_FOR_assimp::assimp "@CMAKE_INSTALL_FULL_LIBDIR@/${sharedLibraryName}" )
   else()
     set(staticLibraryName "libassimp${ASSIMP_LIBRARY_SUFFIX}@CMAKE_DEBUG_POSTFIX@@CMAKE_STATIC_LIBRARY_SUFFIX@")
     set_target_properties(assimp::assimp PROPERTIES
-      IMPORTED_LOCATION_DEBUG "${_IMPORT_PREFIX}/lib/${staticLibraryName}"
+      IMPORTED_LOCATION_DEBUG "@CMAKE_INSTALL_FULL_LIBDIR@/${staticLibraryName}"
     )
     list(APPEND _IMPORT_CHECK_TARGETS assimp::assimp )
-    list(APPEND _IMPORT_CHECK_FILES_FOR_assimp::assimp "${_IMPORT_PREFIX}/lib/${staticLibraryName}" )
+    list(APPEND _IMPORT_CHECK_FILES_FOR_assimp::assimp "@CMAKE_INSTALL_FULL_LIBDIR@/${staticLibraryName}" )
   endif()
 endif()
 
-
-
-
 # Commands beyond this point should not need to know the version.
 set(CMAKE_IMPORT_FILE_VERSION)
 

assimpTargets-release.cmake.in

@@ -7,6 +7,8 @@ set(CMAKE_IMPORT_FILE_VERSION 1)
 
 set(ASSIMP_BUILD_SHARED_LIBS @BUILD_SHARED_LIBS@)
 
+get_property(LIB64 GLOBAL PROPERTY FIND_LIBRARY_USE_LIB64_PATHS)
+
 if(MSVC)
   if(MSVC_TOOLSET_VERSION)
     set(MSVC_PREFIX "vc${MSVC_TOOLSET_VERSION}")
@@ -34,8 +36,6 @@ if(MSVC)
     endif()
   endif()
   set(ASSIMP_LIBRARY_SUFFIX "@ASSIMP_LIBRARY_SUFFIX@-${MSVC_PREFIX}-mt" CACHE STRING "the suffix for the assimp windows library" )
-  	
-  file(TO_NATIVE_PATH "${_IMPORT_PREFIX}" _IMPORT_PREFIX)
 
   if(ASSIMP_BUILD_SHARED_LIBS)
     set(sharedLibraryName "assimp${ASSIMP_LIBRARY_SUFFIX}@CMAKE_SHARED_LIBRARY_SUFFIX@")
@@ -44,22 +44,22 @@ if(MSVC)
     # Import target "assimp::assimp" for configuration "Release"
     set_property(TARGET assimp::assimp APPEND PROPERTY IMPORTED_CONFIGURATIONS RELEASE)
     set_target_properties(assimp::assimp PROPERTIES
-      IMPORTED_IMPLIB_RELEASE "${_IMPORT_PREFIX}/lib/${importLibraryName}"
-      IMPORTED_LOCATION_RELEASE "${_IMPORT_PREFIX}/bin/${sharedLibraryName}"
+      IMPORTED_IMPLIB_RELEASE "@CMAKE_INSTALL_FULL_LIBDIR@/${importLibraryName}"
+      IMPORTED_LOCATION_RELEASE "@CMAKE_INSTALL_FULL_BINDIR@/${sharedLibraryName}"
     )
     list(APPEND _IMPORT_CHECK_TARGETS assimp::assimp )
-    list(APPEND _IMPORT_CHECK_FILES_FOR_assimp::assimp "${_IMPORT_PREFIX}/lib/${importLibraryName}")
-    list(APPEND _IMPORT_CHECK_FILES_FOR_assimp::assimp "${_IMPORT_PREFIX}/bin/${sharedLibraryName}" )
+    list(APPEND _IMPORT_CHECK_FILES_FOR_assimp::assimp "@CMAKE_INSTALL_FULL_LIBDIR@/${importLibraryName}")
+    list(APPEND _IMPORT_CHECK_FILES_FOR_assimp::assimp "@CMAKE_INSTALL_FULL_BINDIR@/${sharedLibraryName}" )
   else()
     set(staticLibraryName "assimp${ASSIMP_LIBRARY_SUFFIX}@CMAKE_STATIC_LIBRARY_SUFFIX@")
 
     # Import target "assimp::assimp" for configuration "Release"
     set_property(TARGET assimp::assimp APPEND PROPERTY IMPORTED_CONFIGURATIONS RELEASE)
     set_target_properties(assimp::assimp PROPERTIES
-      IMPORTED_LOCATION_RELEASE "${_IMPORT_PREFIX}/lib/${staticLibraryName}"
+      IMPORTED_LOCATION_RELEASE "@CMAKE_INSTALL_FULL_LIBDIR@/${staticLibraryName}"
     )
     list(APPEND _IMPORT_CHECK_TARGETS assimp::assimp )
-    list(APPEND _IMPORT_CHECK_FILES_FOR_assimp::assimp "${_IMPORT_PREFIX}/lib/${staticLibraryName}")
+    list(APPEND _IMPORT_CHECK_FILES_FOR_assimp::assimp "@CMAKE_INSTALL_FULL_LIBDIR@/${staticLibraryName}")
   endif()
 
 else()
@@ -75,18 +75,17 @@ else()
     endif()
     set_target_properties(assimp::assimp PROPERTIES
       IMPORTED_SONAME_RELEASE "${sharedLibraryName}"
-
-      IMPORTED_LOCATION_RELEASE "${_IMPORT_PREFIX}/lib/${sharedLibraryName}"
+      IMPORTED_LOCATION_RELEASE "@CMAKE_INSTALL_FULL_LIBDIR@/${sharedLibraryName}"
     )
     list(APPEND _IMPORT_CHECK_TARGETS assimp::assimp )
-    list(APPEND _IMPORT_CHECK_FILES_FOR_assimp::assimp "${_IMPORT_PREFIX}/lib/${sharedLibraryName}" )
+    list(APPEND _IMPORT_CHECK_FILES_FOR_assimp::assimp "@CMAKE_INSTALL_FULL_LIBDIR@/${sharedLibraryName}" )
   else()
     set(staticLibraryName "libassimp${ASSIMP_LIBRARY_SUFFIX}@CMAKE_STATIC_LIBRARY_SUFFIX@")
     set_target_properties(assimp::assimp PROPERTIES
-      IMPORTED_LOCATION_RELEASE "${_IMPORT_PREFIX}/lib/${staticLibraryName}"
+      IMPORTED_LOCATION_RELEASE "@CMAKE_INSTALL_FULL_LIBDIR@/${staticLibraryName}"
     )
     list(APPEND _IMPORT_CHECK_TARGETS assimp::assimp )
-    list(APPEND _IMPORT_CHECK_FILES_FOR_assimp::assimp "${_IMPORT_PREFIX}/lib/${staticLibraryName}" )
+    list(APPEND _IMPORT_CHECK_FILES_FOR_assimp::assimp "@CMAKE_INSTALL_FULL_LIBDIR@/${staticLibraryName}" )
   endif()
 endif()
 

assimpTargets.cmake.in

@@ -43,23 +43,13 @@ unset(_targetsDefined)
 unset(_targetsNotDefined)
 unset(_expectedTargets)
 
-
-# Compute the installation prefix relative to this file.
-get_filename_component(_IMPORT_PREFIX "${CMAKE_CURRENT_LIST_FILE}" PATH)
-get_filename_component(_IMPORT_PREFIX "${_IMPORT_PREFIX}" PATH)
-get_filename_component(_IMPORT_PREFIX "${_IMPORT_PREFIX}" PATH)
-get_filename_component(_IMPORT_PREFIX "${_IMPORT_PREFIX}" PATH)
-if(_IMPORT_PREFIX STREQUAL "/")
-  set(_IMPORT_PREFIX "")
-endif()
-
 # Create imported target assimp::assimp
 add_library(assimp::assimp @BUILD_LIB_TYPE@ IMPORTED)
 
 set_target_properties(assimp::assimp PROPERTIES
   COMPATIBLE_INTERFACE_STRING "assimp_MAJOR_VERSION"
   INTERFACE_assimp_MAJOR_VERSION "1"
-  INTERFACE_INCLUDE_DIRECTORIES "${_IMPORT_PREFIX}/include;${_IMPORT_PREFIX}/include"
+  INTERFACE_INCLUDE_DIRECTORIES "@CMAKE_INSTALL_FULL_INCLUDEDIR@"
   #INTERFACE_LINK_LIBRARIES "TxtUtils::TxtUtils;MealyMachine::MealyMachine"
 )
 
@@ -74,9 +64,6 @@ foreach(f ${CONFIG_FILES})
   include(${f})
 endforeach()
 
-# Cleanup temporary variables.
-set(_IMPORT_PREFIX)
-
 # Loop over all imported files and verify that they actually exist
 foreach(target ${_IMPORT_CHECK_TARGETS} )
   foreach(file ${_IMPORT_CHECK_FILES_FOR_${target}} )

code/3DS/3DSConverter.cpp

@@ -5,8 +5,6 @@ Open Asset Import Library (assimp)
 
 Copyright (c) 2006-2020, assimp team
 
-
-
 All rights reserved.
 
 Redistribution and use of this software in source and binary forms,
@@ -43,7 +41,6 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 /** @file Implementation of the 3ds importer class */
 
-
 #ifndef ASSIMP_BUILD_NO_3DS_IMPORTER
 
 // internal headers

code/3DS/3DSHelper.h

@@ -322,7 +322,7 @@ struct Face : public FaceWithSmoothingGroup {
 };
 
 #ifdef _WIN32
-#    pragma warning(disable : 4315)
+#pragma warning(disable : 4315)
 #endif
 
 // ---------------------------------------------------------------------------
@@ -441,30 +441,52 @@ struct Material {
         // empty
     }
 
-    Material(const Material &other) = default;
-    Material &operator=(const Material &other) = default;
+    Material(const Material &other) :
+            mName(other.mName),
+            mDiffuse(other.mDiffuse),
+            mSpecularExponent(other.mSpecularExponent),
+            mShininessStrength(other.mShininessStrength),
+            mSpecular(other.mSpecular),
+            mAmbient(other.mAmbient),
+            mShading(other.mShading),
+            mTransparency(other.mTransparency),
+            sTexDiffuse(other.sTexDiffuse),
+            sTexOpacity(other.sTexOpacity),
+            sTexSpecular(other.sTexSpecular),
+            sTexReflective(other.sTexReflective),
+            sTexBump(other.sTexBump),
+            sTexEmissive(other.sTexEmissive),
+            sTexShininess(other.sTexShininess),
+            mBumpHeight(other.mBumpHeight),
+            mEmissive(other.mEmissive),
+            sTexAmbient(other.sTexAmbient),
+            mTwoSided(other.mTwoSided) {
+        // empty
+
+    }
 
     //! Move constructor. This is explicitly written because MSVC doesn't support defaulting it
-    Material(Material &&other) AI_NO_EXCEPT
-            : mName(std::move(other.mName)),
-              mDiffuse(std::move(other.mDiffuse)),
-              mSpecularExponent(std::move(other.mSpecularExponent)),
-              mShininessStrength(std::move(other.mShininessStrength)),
-              mSpecular(std::move(other.mSpecular)),
-              mAmbient(std::move(other.mAmbient)),
-              mShading(std::move(other.mShading)),
-              mTransparency(std::move(other.mTransparency)),
-              sTexDiffuse(std::move(other.sTexDiffuse)),
-              sTexOpacity(std::move(other.sTexOpacity)),
-              sTexSpecular(std::move(other.sTexSpecular)),
-              sTexReflective(std::move(other.sTexReflective)),
-              sTexBump(std::move(other.sTexBump)),
-              sTexEmissive(std::move(other.sTexEmissive)),
-              sTexShininess(std::move(other.sTexShininess)),
-              mBumpHeight(std::move(other.mBumpHeight)),
-              mEmissive(std::move(other.mEmissive)),
-              sTexAmbient(std::move(other.sTexAmbient)),
-              mTwoSided(std::move(other.mTwoSided)) {
+    Material(Material &&other) AI_NO_EXCEPT :
+            mName(std::move(other.mName)),
+            mDiffuse(std::move(other.mDiffuse)),
+            mSpecularExponent(std::move(other.mSpecularExponent)),
+            mShininessStrength(std::move(other.mShininessStrength)),
+            mSpecular(std::move(other.mSpecular)),
+            mAmbient(std::move(other.mAmbient)),
+            mShading(std::move(other.mShading)),
+            mTransparency(std::move(other.mTransparency)),
+            sTexDiffuse(std::move(other.sTexDiffuse)),
+            sTexOpacity(std::move(other.sTexOpacity)),
+            sTexSpecular(std::move(other.sTexSpecular)),
+            sTexReflective(std::move(other.sTexReflective)),
+            sTexBump(std::move(other.sTexBump)),
+            sTexEmissive(std::move(other.sTexEmissive)),
+            sTexShininess(std::move(other.sTexShininess)),
+            mBumpHeight(std::move(other.mBumpHeight)),
+            mEmissive(std::move(other.mEmissive)),
+            sTexAmbient(std::move(other.sTexAmbient)),
+            mTwoSided(std::move(other.mTwoSided)) {
+        // empty
     }
 
     Material &operator=(Material &&other) AI_NO_EXCEPT {

code/3DS/3DSLoader.cpp

@@ -5,8 +5,6 @@ Open Asset Import Library (assimp)
 
 Copyright (c) 2006-2020, assimp team
 
-
-
 All rights reserved.
 
 Redistribution and use of this software in source and binary forms,
@@ -72,7 +70,6 @@ static const aiImporterDesc desc = {
 	"3ds prj"
 };
 
-
 // ------------------------------------------------------------------------------------------------
 // Begins a new parsing block
 // - Reads the current chunk and validates it
@@ -141,15 +138,13 @@ bool Discreet3DSImporter::CanRead( const std::string& pFile, IOSystem* pIOHandle
 
 // ------------------------------------------------------------------------------------------------
 // Loader registry entry
-const aiImporterDesc* Discreet3DSImporter::GetInfo () const
-{
+const aiImporterDesc* Discreet3DSImporter::GetInfo () const {
     return &desc;
 }
 
 // ------------------------------------------------------------------------------------------------
 // Setup configuration properties
-void Discreet3DSImporter::SetupProperties(const Importer* /*pImp*/)
-{
+void Discreet3DSImporter::SetupProperties(const Importer* /*pImp*/) {
     // nothing to be done for the moment
 }
 
@@ -200,7 +195,7 @@ void Discreet3DSImporter::InternReadFile( const std::string& pFile,
         ComputeNormalsWithSmoothingsGroups<D3DS::Face>(mesh);
     }
 
-    // Replace all occurences of the default material with a
+    // Replace all occurrences of the default material with a
     // valid material. Generate it if no material containing
     // DEFAULT in its name has been found in the file
     ReplaceDefaultMaterial();
@@ -227,8 +222,7 @@ void Discreet3DSImporter::InternReadFile( const std::string& pFile,
 
 // ------------------------------------------------------------------------------------------------
 // Applies a master-scaling factor to the imported scene
-void Discreet3DSImporter::ApplyMasterScale(aiScene* pScene)
-{
+void Discreet3DSImporter::ApplyMasterScale(aiScene* pScene) {
     // There are some 3DS files with a zero scaling factor
     if (!mMasterScale)mMasterScale = 1.0f;
     else mMasterScale = 1.0f / mMasterScale;
@@ -1084,7 +1078,7 @@ void Discreet3DSImporter::ParseMeshChunk()
         mMesh.mFaceMaterials.resize(mMesh.mFaces.size(),0xcdcdcdcd);
 
         // Larger 3DS files could have multiple FACE chunks here
-        chunkSize = stream->GetRemainingSizeToLimit();
+        chunkSize = (int)stream->GetRemainingSizeToLimit();
         if ( chunkSize > (int) sizeof(Discreet3DS::Chunk ) )
             ParseFaceChunk();
         }

code/3DS/3DSLoader.h

@@ -65,15 +65,11 @@ using namespace D3DS;
 // ---------------------------------------------------------------------------------
 /** Importer class for 3D Studio r3 and r4 3DS files
  */
-class Discreet3DSImporter : public BaseImporter
-{
+class Discreet3DSImporter : public BaseImporter {
 public:
-
     Discreet3DSImporter();
     ~Discreet3DSImporter();
 
-public:
-
     // -------------------------------------------------------------------
     /** Returns whether the class can handle the format of the given file.
      * See BaseImporter::CanRead() for details.

code/3MF/D3MFExporter.cpp

@@ -181,7 +181,7 @@ bool D3MFExporter::export3DModel() {
 
     writeHeader();
     mModelOutput << "<" << XmlTag::model << " " << XmlTag::model_unit << "=\"millimeter\""
-            << "xmlns=\"http://schemas.microsoft.com/3dmanufacturing/core/2015/02\">"
+            << " xmlns=\"http://schemas.microsoft.com/3dmanufacturing/core/2015/02\">"
             << std::endl;
     mModelOutput << "<" << XmlTag::resources << ">";
     mModelOutput << std::endl;
@@ -212,7 +212,7 @@ bool D3MFExporter::export3DModel() {
 }
 
 void D3MFExporter::writeHeader() {
-    mModelOutput << "<?xml version=\"1.0\" encoding=\"UTF - 8\"?>";
+    mModelOutput << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>";
     mModelOutput << std::endl;
 }
 
@@ -254,16 +254,28 @@ void D3MFExporter::writeBaseMaterials() {
         if ( mat->Get( AI_MATKEY_COLOR_DIFFUSE, color ) == aiReturn_SUCCESS ) {
             hexDiffuseColor.clear();
             tmp.clear();
-            hexDiffuseColor = "#";
-            
-            tmp = DecimalToHexa( (ai_real) color.r );
-            hexDiffuseColor += tmp;
-            tmp = DecimalToHexa((ai_real)color.g);
-            hexDiffuseColor += tmp;
-            tmp = DecimalToHexa((ai_real)color.b);
-            hexDiffuseColor += tmp;
-            tmp = DecimalToHexa((ai_real)color.a);
-            hexDiffuseColor += tmp;
+            // rgbs %
+    		if(color.r <= 1 && color.g <= 1 && color.b <= 1 && color.a <= 1){
+    	
+    			 hexDiffuseColor = Rgba2Hex(
+    			 	(int)((ai_real)color.r)*255,
+    			 	(int)((ai_real)color.g)*255,
+    			 	(int)((ai_real)color.b)*255,
+    			 	(int)((ai_real)color.a)*255,
+    			 	true
+    			 );
+    			 
+    		}else{
+    			hexDiffuseColor = "#";
+            	tmp = DecimalToHexa( (ai_real) color.r );
+            	hexDiffuseColor += tmp;
+            	tmp = DecimalToHexa((ai_real)color.g);
+            	hexDiffuseColor += tmp;
+            	tmp = DecimalToHexa((ai_real)color.b);
+            	hexDiffuseColor += tmp;
+            	tmp = DecimalToHexa((ai_real)color.a);
+            	hexDiffuseColor += tmp;
+    		}
         } else {
             hexDiffuseColor = "#FFFFFFFF";
         }
@@ -284,7 +296,7 @@ void D3MFExporter::writeObjects() {
         if ( nullptr == currentNode ) {
             continue;
         }
-        mModelOutput << "<" << XmlTag::object << " id=\"" << currentNode->mName.C_Str() << "\" type=\"model\">";
+        mModelOutput << "<" << XmlTag::object << " id=\"" << i + 2 << "\" type=\"model\">";
         mModelOutput << std::endl;
         for ( unsigned int j = 0; j < currentNode->mNumMeshes; ++j ) {
             aiMesh *currentMesh = mScene->mMeshes[ currentNode->mMeshes[ j ] ];
@@ -348,7 +360,7 @@ void D3MFExporter::writeBuild() {
     mModelOutput << "<" << XmlTag::build << ">" << std::endl;
 
     for ( size_t i = 0; i < mBuildItems.size(); ++i ) {
-        mModelOutput << "<" << XmlTag::item << " objectid=\"" << i + 1 << "\"/>";
+        mModelOutput << "<" << XmlTag::item << " objectid=\"" << i + 2 << "\"/>";
         mModelOutput << std::endl;
     }
     mModelOutput << "</" << XmlTag::build << ">";

code/Assjson/cencode.c

@@ -9,6 +9,9 @@ For details, see http://sourceforge.net/projects/libb64
 
 const int CHARS_PER_LINE = 72;
 
+#pragma warning(push)
+#pragma warning(disable : 4244)
+
 void base64_init_encodestate(base64_encodestate* state_in)
 {
 	state_in->step = step_A;
@@ -107,3 +110,4 @@ int base64_encode_blockend(char* code_out, base64_encodestate* state_in)
 	return (int)(codechar - code_out);
 }
 
+#pragma warning(pop)

code/Assxml/AssxmlExporter.cpp

@@ -50,7 +50,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include <assimp/IOSystem.hpp>
 #include <assimp/Exporter.hpp>
 
-namespace Assimp    {
+namespace Assimp   { 
 
 void ExportSceneAssxml(const char* pFile, IOSystem* pIOSystem, const aiScene* pScene, const ExportProperties* /*pProperties*/)
 {

code/Blender/BlenderLoader.cpp

@@ -206,7 +206,7 @@ void BlenderImporter::InternReadFile( const std::string& pFile,
         inflateInit2(&zstream, 16+MAX_WBITS);
 
         zstream.next_in   = reinterpret_cast<Bytef*>( reader->GetPtr() );
-        zstream.avail_in  = reader->GetRemainingSize();
+        zstream.avail_in  = (uInt) reader->GetRemainingSize();
 
         size_t total = 0l;
 

code/CSM/CSMLoader.cpp

@@ -178,7 +178,7 @@ void CSMImporter::InternReadFile( const std::string& pFile,
                         *ot++ = *buffer++;
 
                     *ot = '\0';
-                    nda->mNodeName.length = (ai_uint32)(ot-nda->mNodeName.data);
+                    nda->mNodeName.length = static_cast<ai_uint32>(ot-nda->mNodeName.data);
                 }
 
                 anim->mNumChannels = static_cast<unsigned int>(anims_temp.size());

code/Common/Exporter.cpp

@@ -83,32 +83,61 @@ namespace Assimp {
 void GetPostProcessingStepInstanceList(std::vector< BaseProcess* >& out);
 
 // ------------------------------------------------------------------------------------------------
-// Exporter worker function prototypes. Should not be necessary to #ifndef them, it's just a prototype
-// do not use const, because some exporter need to convert the scene temporary
+// Exporter worker function prototypes. Do not use const, because some exporter need to convert 
+// the scene temporary
+#ifndef ASSIMP_BUILD_NO_COLLADA_EXPORTER
 void ExportSceneCollada(const char*,IOSystem*, const aiScene*, const ExportProperties*);
+#endif
+#ifndef ASSIMP_BUILD_NO_X_EXPORTER
 void ExportSceneXFile(const char*,IOSystem*, const aiScene*, const ExportProperties*);
+#endif
+#ifndef ASSIMP_BUILD_NO_STEP_EXPORTER
 void ExportSceneStep(const char*,IOSystem*, const aiScene*, const ExportProperties*);
+#endif
+#ifndef ASSIMP_BUILD_NO_OBJ_EXPORTER
 void ExportSceneObj(const char*,IOSystem*, const aiScene*, const ExportProperties*);
 void ExportSceneObjNoMtl(const char*,IOSystem*, const aiScene*, const ExportProperties*);
+#endif
+#ifndef ASSIMP_BUILD_NO_STL_EXPORTER
 void ExportSceneSTL(const char*,IOSystem*, const aiScene*, const ExportProperties*);
 void ExportSceneSTLBinary(const char*,IOSystem*, const aiScene*, const ExportProperties*);
+#endif
+#ifndef ASSIMP_BUILD_NO_PLY_EXPORTER
 void ExportScenePly(const char*,IOSystem*, const aiScene*, const ExportProperties*);
 void ExportScenePlyBinary(const char*, IOSystem*, const aiScene*, const ExportProperties*);
+#endif
+#ifndef ASSIMP_BUILD_NO_3DS_EXPORTER
 void ExportScene3DS(const char*, IOSystem*, const aiScene*, const ExportProperties*);
+#endif
+#ifndef ASSIMP_BUILD_NO_GLTF_EXPORTER
 void ExportSceneGLTF(const char*, IOSystem*, const aiScene*, const ExportProperties*);
 void ExportSceneGLB(const char*, IOSystem*, const aiScene*, const ExportProperties*);
 void ExportSceneGLTF2(const char*, IOSystem*, const aiScene*, const ExportProperties*);
 void ExportSceneGLB2(const char*, IOSystem*, const aiScene*, const ExportProperties*);
+#endif
+#ifndef ASSIMP_BUILD_NO_ASSBIN_EXPORTER
 void ExportSceneAssbin(const char*, IOSystem*, const aiScene*, const ExportProperties*);
+#endif
+#ifndef ASSIMP_BUILD_NO_ASSXML_EXPORTER
 void ExportSceneAssxml(const char*, IOSystem*, const aiScene*, const ExportProperties*);
+#endif
+#ifndef ASSIMP_BUILD_NO_X3D_EXPORTER
 void ExportSceneX3D(const char*, IOSystem*, const aiScene*, const ExportProperties*);
+#endif
+#ifndef ASSIMP_BUILD_NO_FBX_EXPORTER
 void ExportSceneFBX(const char*, IOSystem*, const aiScene*, const ExportProperties*);
 void ExportSceneFBXA(const char*, IOSystem*, const aiScene*, const ExportProperties*);
+#endif
+#ifndef ASSIMP_BUILD_NO_3MF_EXPORTER
 void ExportScene3MF( const char*, IOSystem*, const aiScene*, const ExportProperties* );
+#endif
+#ifndef ASSIMP_BUILD_NO_M3D_EXPORTER
 void ExportSceneM3D(const char*, IOSystem*, const aiScene*, const ExportProperties*);
 void ExportSceneM3DA(const char*, IOSystem*, const aiScene*, const ExportProperties*);
+#endif
+#ifndef ASSIMP_BUILD_NO_ASSJSON_EXPORTER
 void ExportAssimp2Json(const char* , IOSystem*, const aiScene* , const Assimp::ExportProperties*);
-
+#endif
 
 static void setupExporterArray(std::vector<Exporter::ExportFormatEntry> &exporters) {
 #ifndef ASSIMP_BUILD_NO_COLLADA_EXPORTER

code/FBX/FBXImportSettings.h

@@ -4,7 +4,6 @@ Open Asset Import Library (assimp)
 
 Copyright (c) 2006-2020, assimp team
 
-
 All rights reserved.
 
 Redistribution and use of this software in source and binary forms,
@@ -50,27 +49,25 @@ namespace Assimp {
 namespace FBX {
 
 /** FBX import settings, parts of which are publicly accessible via their corresponding AI_CONFIG constants */
-struct ImportSettings
-{
-    ImportSettings()
-    : strictMode(true)
-    , readAllLayers(true)
-    , readAllMaterials(false)
-    , readMaterials(true)
-    , readTextures(true)
-    , readCameras(true)
-    , readLights(true)
-    , readAnimations(true)
-    , readWeights(true)
-    , preservePivots(true)
-    , optimizeEmptyAnimationCurves(true)
-    , useLegacyEmbeddedTextureNaming(false)
-    , removeEmptyBones( true )
-    , convertToMeters( false ) {
+struct ImportSettings {
+    ImportSettings() :
+            strictMode(true),
+            readAllLayers(true),
+            readAllMaterials(false),
+            readMaterials(true),
+            readTextures(true),
+            readCameras(true),
+            readLights(true),
+            readAnimations(true),
+            readWeights(true),
+            preservePivots(true),
+            optimizeEmptyAnimationCurves(true),
+            useLegacyEmbeddedTextureNaming(false),
+            removeEmptyBones(true),
+            convertToMeters(false) {
         // empty
     }
 
-
     /** enable strict mode:
      *   - only accept fbx 2012, 2013 files
      *   - on the slightest error, give up.
@@ -94,7 +91,6 @@ struct ImportSettings
      *  This bit is ignored unless readMaterials=true*/
     bool readAllMaterials;
 
-
     /** import materials (true) or skip them and assign a default
      *  material. The default value is true.*/
     bool readMaterials;
@@ -156,9 +152,7 @@ struct ImportSettings
     bool convertToMeters;
 };
 
-
-} // !FBX
-} // !Assimp
+} // namespace FBX
+} // namespace Assimp
 
 #endif
-

code/FBX/FBXImporter.cpp

@@ -4,7 +4,6 @@ Open Asset Import Library (assimp)
 
 Copyright (c) 2006-2020, assimp team
 
-
 All rights reserved.
 
 Redistribution and use of this software in source and binary forms,

code/FBX/FBXImporter.h

@@ -4,7 +4,6 @@ Open Asset Import Library (assimp)
 
 Copyright (c) 2006-2020, assimp team
 
-
 All rights reserved.
 
 Redistribution and use of this software in source and binary forms,
@@ -51,45 +50,44 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 #include "FBXImportSettings.h"
 
-namespace Assimp    {
+namespace Assimp {
 
 // TinyFormatter.h
 namespace Formatter {
-    template <typename T,typename TR, typename A> class basic_formatter;
-    typedef class basic_formatter< char, std::char_traits<char>, std::allocator<char> > format;
-}
 
-// -------------------------------------------------------------------------------------------
-/** Load the Autodesk FBX file format.
+template <typename T, typename TR, typename A>
+class basic_formatter;
 
- See http://en.wikipedia.org/wiki/FBX
-*/
+typedef class basic_formatter<char, std::char_traits<char>, std::allocator<char>> format;
+
+} // namespace Formatter
+
+// -------------------------------------------------------------------------------------------
+/// Loads the Autodesk FBX file format.
+///
+/// See http://en.wikipedia.org/wiki/FBX
 // -------------------------------------------------------------------------------------------
-class FBXImporter : public BaseImporter, public LogFunctions<FBXImporter>
-{
+class FBXImporter : public BaseImporter, public LogFunctions<FBXImporter> {
 public:
     FBXImporter();
     virtual ~FBXImporter();
 
     // --------------------
-    bool CanRead( const std::string& pFile,
-        IOSystem* pIOHandler,
-        bool checkSig
-    ) const;
+    bool CanRead(const std::string &pFile,
+            IOSystem *pIOHandler,
+            bool checkSig) const;
 
 protected:
-
     // --------------------
-    const aiImporterDesc* GetInfo () const;
+    const aiImporterDesc *GetInfo() const;
 
     // --------------------
-    void SetupProperties(const Importer* pImp);
+    void SetupProperties(const Importer *pImp);
 
     // --------------------
-    void InternReadFile( const std::string& pFile,
-        aiScene* pScene,
-        IOSystem* pIOHandler
-    );
+    void InternReadFile(const std::string &pFile,
+            aiScene *pScene,
+            IOSystem *pIOHandler);
 
 private:
     FBX::ImportSettings settings;
@@ -97,4 +95,3 @@ private:
 
 } // end of namespace Assimp
 #endif // !INCLUDED_AI_FBX_IMPORTER_H
-

code/Irr/IRRLoader.cpp

@@ -1483,6 +1483,7 @@ void IRRImporter::InternReadFile( const std::string& pFile,
      */
 
     delete root;
+	delete reader;
 }
 
 #endif // !! ASSIMP_BUILD_NO_IRR_IMPORTER

code/M3D/M3DExporter.cpp

@@ -189,42 +189,42 @@ M3D_INDEX addMaterial(const Assimp::M3DWrapper &m3d, const aiMaterial *mat) {
                     continue;
                 if (aiProps[k].pKey) {
                     switch (m3d_propertytypes[k].format) {
-                        case m3dpf_color:
-                            if (mat->Get(aiProps[k].pKey, aiProps[k].type,
-                                        aiProps[k].index, c) == AI_SUCCESS)
-                                addProp(&m3d->material[mi],
-                                        m3d_propertytypes[k].id, mkColor(&c));
-                            break;
-                        case m3dpf_float:
-                            if (mat->Get(aiProps[k].pKey, aiProps[k].type,
-                                        aiProps[k].index, f) == AI_SUCCESS)
-                                addProp(&m3d->material[mi],
-                                        m3d_propertytypes[k].id,
-                                        /* not (uint32_t)f, because we don't want to convert
+                    case m3dpf_color:
+                        if (mat->Get(aiProps[k].pKey, aiProps[k].type,
+                                    aiProps[k].index, c) == AI_SUCCESS)
+                            addProp(&m3d->material[mi],
+                                    m3d_propertytypes[k].id, mkColor(&c));
+                        break;
+                    case m3dpf_float:
+                        if (mat->Get(aiProps[k].pKey, aiProps[k].type,
+                                    aiProps[k].index, f) == AI_SUCCESS)
+                            addProp(&m3d->material[mi],
+                                    m3d_propertytypes[k].id,
+                                    /* not (uint32_t)f, because we don't want to convert
                                          * it, we want to see it as 32 bits of memory */
-                                        *((uint32_t *)&f));
-                            break;
-                        case m3dpf_uint8:
-                            if (mat->Get(aiProps[k].pKey, aiProps[k].type,
-                                        aiProps[k].index, j) == AI_SUCCESS) {
-                                // special conversion for illumination model property
-                                if (m3d_propertytypes[k].id == m3dp_il) {
-                                    switch (j) {
-                                        case aiShadingMode_NoShading: j = 0; break;
-                                        case aiShadingMode_Phong: j = 2; break;
-                                        default: j = 1; break;
-                                    }
+                                    *((uint32_t *)&f));
+                        break;
+                    case m3dpf_uint8:
+                        if (mat->Get(aiProps[k].pKey, aiProps[k].type,
+                                    aiProps[k].index, j) == AI_SUCCESS) {
+                            // special conversion for illumination model property
+                            if (m3d_propertytypes[k].id == m3dp_il) {
+                                switch (j) {
+                                case aiShadingMode_NoShading: j = 0; break;
+                                case aiShadingMode_Phong: j = 2; break;
+                                default: j = 1; break;
                                 }
-                                addProp(&m3d->material[mi],
-                                        m3d_propertytypes[k].id, j);
                             }
-                            break;
-                        default:
-                            if (mat->Get(aiProps[k].pKey, aiProps[k].type,
-                                        aiProps[k].index, j) == AI_SUCCESS)
-                                addProp(&m3d->material[mi],
-                                        m3d_propertytypes[k].id, j);
-                            break;
+                            addProp(&m3d->material[mi],
+                                    m3d_propertytypes[k].id, j);
+                        }
+                        break;
+                    default:
+                        if (mat->Get(aiProps[k].pKey, aiProps[k].type,
+                                    aiProps[k].index, j) == AI_SUCCESS)
+                            addProp(&m3d->material[mi],
+                                    m3d_propertytypes[k].id, j);
+                        break;
                     }
                 }
                 if (aiTxProps[k].pKey &&
@@ -292,8 +292,8 @@ void ExportSceneM3D(
 // Prototyped and registered in Exporter.cpp
 void ExportSceneM3DA(
         const char *,
-        IOSystem*,
-        const aiScene*,
+        IOSystem *,
+        const aiScene *,
         const ExportProperties *
 
 ) {
@@ -312,7 +312,9 @@ void ExportSceneM3DA(
 M3DExporter::M3DExporter(const aiScene *pScene, const ExportProperties *pProperties) :
         mScene(pScene),
         mProperties(pProperties),
-        outfile() {}
+        outfile() {
+    // empty
+}
 
 // ------------------------------------------------------------------------------------------------
 void M3DExporter::doExport(
@@ -352,6 +354,9 @@ void M3DExporter::doExport(
     // explicitly release file pointer,
     // so we don't have to rely on class destruction.
     outfile.reset();
+
+    M3D_FREE(m3d->name);
+    m3d->name = nullptr;
 }
 
 // ------------------------------------------------------------------------------------------------

code/M3D/M3DWrapper.cpp

@@ -50,15 +50,15 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 #ifdef ASSIMP_USE_M3D_READFILECB
 
-# if (__cplusplus >= 201103L) || !defined(_MSC_VER) || (_MSC_VER >= 1900) // C++11 and MSVC 2015 onwards
-#  define threadlocal thread_local
-# else
-#  if defined(_MSC_VER) && (_MSC_VER >= 1800) // there's an alternative for MSVC 2013
-#   define threadlocal __declspec(thread)
-#  else
-#   define threadlocal
-#  endif
-# endif
+#if (__cplusplus >= 201103L) || !defined(_MSC_VER) || (_MSC_VER >= 1900) // C++11 and MSVC 2015 onwards
+#define threadlocal thread_local
+#else
+#if defined(_MSC_VER) && (_MSC_VER >= 1800) // there's an alternative for MSVC 2013
+#define threadlocal __declspec(thread)
+#else
+#define threadlocal
+#endif
+#endif
 
 extern "C" {
 
@@ -66,37 +66,37 @@ extern "C" {
 threadlocal void *m3dimporter_pIOHandler;
 
 unsigned char *m3dimporter_readfile(char *fn, unsigned int *size) {
-	ai_assert(nullptr != fn);
-	ai_assert(nullptr != size);
-	std::string file(fn);
-	std::unique_ptr<Assimp::IOStream> pStream(
-			(reinterpret_cast<Assimp::IOSystem *>(m3dimporter_pIOHandler))->Open(file, "rb"));
-	size_t fileSize = 0;
-	unsigned char *data = NULL;
-	// sometimes pStream is nullptr in a single-threaded scenario too for some reason
-	// (should be an empty object returning nothing I guess)
-	if (pStream) {
-		fileSize = pStream->FileSize();
-		// should be allocated with malloc(), because the library will call free() to deallocate
-		data = (unsigned char *)malloc(fileSize);
-		if (!data || !pStream.get() || !fileSize || fileSize != pStream->Read(data, 1, fileSize)) {
-			pStream.reset();
-			*size = 0;
-			// don't throw a deadly exception, it's not fatal if we can't read an external asset
-			return nullptr;
-		}
-		pStream.reset();
-	}
-	*size = (int)fileSize;
-	return data;
+    ai_assert(nullptr != fn);
+    ai_assert(nullptr != size);
+    std::string file(fn);
+    std::unique_ptr<Assimp::IOStream> pStream(
+            (reinterpret_cast<Assimp::IOSystem *>(m3dimporter_pIOHandler))->Open(file, "rb"));
+    size_t fileSize = 0;
+    unsigned char *data = NULL;
+    // sometimes pStream is nullptr in a single-threaded scenario too for some reason
+    // (should be an empty object returning nothing I guess)
+    if (pStream) {
+        fileSize = pStream->FileSize();
+        // should be allocated with malloc(), because the library will call free() to deallocate
+        data = (unsigned char *)malloc(fileSize);
+        if (!data || !pStream.get() || !fileSize || fileSize != pStream->Read(data, 1, fileSize)) {
+            pStream.reset();
+            *size = 0;
+            // don't throw a deadly exception, it's not fatal if we can't read an external asset
+            return nullptr;
+        }
+        pStream.reset();
+    }
+    *size = (int)fileSize;
+    return data;
 }
 }
 #endif
 
 namespace Assimp {
 M3DWrapper::M3DWrapper() {
-	// use malloc() here because m3d_free() will call free()
-	m3d_ = (m3d_t *)calloc(1, sizeof(m3d_t));
+    // use malloc() here because m3d_free() will call free()
+    m3d_ = (m3d_t *)calloc(1, sizeof(m3d_t));
 }
 
 M3DWrapper::M3DWrapper(IOSystem *pIOHandler, const std::vector<unsigned char> &buffer) {
@@ -105,41 +105,42 @@ M3DWrapper::M3DWrapper(IOSystem *pIOHandler, const std::vector<unsigned char> &b
     }
 
 #ifdef ASSIMP_USE_M3D_READFILECB
-	// pass this IOHandler to the C callback in a thread-local pointer
-	m3dimporter_pIOHandler = pIOHandler;
-	m3d_ = m3d_load(const_cast<unsigned char *>(buffer.data()), m3dimporter_readfile, free, nullptr);
-	// Clear the C callback
-	m3dimporter_pIOHandler = nullptr;
+    // pass this IOHandler to the C callback in a thread-local pointer
+    m3dimporter_pIOHandler = pIOHandler;
+    m3d_ = m3d_load(const_cast<unsigned char *>(buffer.data()), m3dimporter_readfile, free, nullptr);
+    // Clear the C callback
+    m3dimporter_pIOHandler = nullptr;
 #else
-	m3d_ = m3d_load(const_cast<unsigned char *>(buffer.data()), nullptr, nullptr, nullptr);
+    m3d_ = m3d_load(const_cast<unsigned char *>(buffer.data()), nullptr, nullptr, nullptr);
 #endif
 }
 
 M3DWrapper::~M3DWrapper() {
-	reset();
+    reset();
 }
 
 void M3DWrapper::reset() {
-	ClearSave();
-	if (m3d_)
-		m3d_free(m3d_);
-	m3d_ = nullptr;
+    ClearSave();
+    if (m3d_) {
+        m3d_free(m3d_);
+    }
+    m3d_ = nullptr;
 }
 
 unsigned char *M3DWrapper::Save(int quality, int flags, unsigned int &size) {
 #if (!(ASSIMP_BUILD_NO_EXPORT || ASSIMP_BUILD_NO_M3D_EXPORTER))
-	ClearSave();
-	saved_output_ = m3d_save(m3d_, quality, flags, &size);
-	return saved_output_;
+    ClearSave();
+    saved_output_ = m3d_save(m3d_, quality, flags, &size);
+    return saved_output_;
 #else
-	return nullptr;
+    return nullptr;
 #endif
 }
 
 void M3DWrapper::ClearSave() {
-	if (saved_output_)
-		M3D_FREE(saved_output_);
-	saved_output_ = nullptr;
+    if (saved_output_)
+        M3D_FREE(saved_output_);
+    saved_output_ = nullptr;
 }
 } // namespace Assimp
 

code/M3D/m3d.h

@@ -5440,13 +5440,13 @@ unsigned char *m3d_save(m3d_t *model, int quality, int flags, unsigned int *size
                         out += 2;
                         break;
                     case 4:
-                        *((float *)out) = vrtx[i].data.x;
+                        memcpy(out, &vrtx[i].data.x, sizeof(float));
                         out += 4;
-                        *((float *)out) = vrtx[i].data.y;
+                        memcpy(out, &vrtx[i].data.y, sizeof(float));
                         out += 4;
-                        *((float *)out) = vrtx[i].data.z;
+                        memcpy(out, &vrtx[i].data.z, sizeof(float));
                         out += 4;
-                        *((float *)out) = vrtx[i].data.w;
+                        memcpy(out, &vrtx[i].data.w, sizeof(float));
                         out += 4;
                         break;
                     case 8:
@@ -5474,9 +5474,11 @@ unsigned char *m3d_save(m3d_t *model, int quality, int flags, unsigned int *size
                 }
                 out = _m3d_addidx(out, sk_s, vrtx[i].data.skinid);
             }
-            *length = (uint32_t)((uintptr_t)out - (uintptr_t)((uint8_t *)h + len));
+            uint32_t v = (uint32_t)((uintptr_t)out - (uintptr_t)((uint8_t *)h + len));
+            memcpy(length, &v, sizeof(uint32_t));
+            //*length = (uint32_t)((uintptr_t)out - (uintptr_t)((uint8_t *)h + len));
             out = NULL;
-            len += *length;
+            len += v;
         }
         /* bones chunk */
         if (model->numbone && model->bone && !(flags & M3D_EXP_NOBONE)) {
@@ -5660,8 +5662,9 @@ unsigned char *m3d_save(m3d_t *model, int quality, int flags, unsigned int *size
                         out = _m3d_addidx(out, vi_s, vrtxidx[face[i].data.normal[j]]);
                 }
             }
-            *length = (uint32_t)((uintptr_t)out - (uintptr_t)((uint8_t *)h + len));
-            len += *length;
+            uint32_t v = (uint32_t)((uintptr_t)out - (uintptr_t)((uint8_t *)h + len));
+            memcpy(length, &v, sizeof(uint32_t));
+            len += v;
             out = NULL;
         }
         /* mathematical shapes face */
@@ -5721,8 +5724,9 @@ unsigned char *m3d_save(m3d_t *model, int quality, int flags, unsigned int *size
                         }
                     }
                 }
-                *length = (uint32_t)((uintptr_t)out - (uintptr_t)((uint8_t *)h + len));
-                len += *length;
+                uint32_t v = (uint32_t)((uintptr_t)out - (uintptr_t)((uint8_t *)h + len));
+                memcpy( length, &v, sizeof(uint32_t));
+                len += v;
                 out = NULL;
             }
         }
@@ -5765,8 +5769,9 @@ unsigned char *m3d_save(m3d_t *model, int quality, int flags, unsigned int *size
                 out = _m3d_addidx(out, si_s, _m3d_stridx(str, numstr, model->label[l].text));
             }
             if (length) {
-                *length = (uint32_t)((uintptr_t)out - (uintptr_t)((uint8_t *)h + len));
-                len += *length;
+                uint32_t v = (uint32_t)((uintptr_t)out - (uintptr_t)((uint8_t *)h + len));
+                memcpy( length, &v, sizeof(uint32_t));                
+                len += v;
             }
             out = NULL;
             sn = sl = NULL;
@@ -5796,8 +5801,9 @@ unsigned char *m3d_save(m3d_t *model, int quality, int flags, unsigned int *size
                         out = _m3d_addidx(out, vi_s, vrtxidx[a->frame[i].transform[k].ori]);
                     }
                 }
-                *length = (uint32_t)((uintptr_t)out - (uintptr_t)((uint8_t *)h + len));
-                len += *length;
+                uint32_t v = (uint32_t)((uintptr_t)out - (uintptr_t)((uint8_t *)h + len));
+                memcpy( length, &v, sizeof(uint32_t));                
+                len += v;
                 out = NULL;
             }
         }

code/Material/MaterialSystem.cpp

@@ -503,7 +503,7 @@ aiReturn aiMaterial::AddBinaryProperty (const void* pInput,
     pcNew->mData = new char[pSizeInBytes];
     memcpy (pcNew->mData,pInput,pSizeInBytes);
 
-    pcNew->mKey.length = (ai_uint32)::strlen(pKey);
+    pcNew->mKey.length = static_cast<ai_uint32>( ::strlen(pKey) );
     ai_assert ( MAXLEN > pcNew->mKey.length);
     strcpy( pcNew->mKey.data, pKey );
 

code/Q3BSP/Q3BSPFileImporter.cpp

@@ -617,7 +617,7 @@ bool Q3BSPFileImporter::importTextureFromArchive( const Q3BSP::Q3BSPModel *model
             // We'll leave it up to the user to figure out which extension the file has.
             aiString name;
             strncpy( name.data, pTexture->strName, sizeof name.data );
-            name.length = (ai_uint32)strlen( name.data );
+            name.length = static_cast<ai_uint32>(strlen( name.data ));
             pMatHelper->AddProperty( &name, AI_MATKEY_TEXTURE_DIFFUSE( 0 ) );
         }
     }

code/SMD/SMDLoader.cpp

@@ -616,7 +616,7 @@ void SMDImporter::CreateOutputMaterials() {
         if (aszTextures[iMat].length())
         {
             ::strncpy(szName.data, aszTextures[iMat].c_str(),MAXLEN-1);
-            szName.length = (ai_uint32)aszTextures[iMat].length();
+            szName.length = static_cast<ai_uint32>( aszTextures[iMat].length() );
             pcMat->AddProperty(&szName,AI_MATKEY_TEXTURE_DIFFUSE(0));
         }
     }

code/Terragen/TerragenLoader.cpp

@@ -5,8 +5,6 @@ Open Asset Import Library (assimp)
 
 Copyright (c) 2006-2020, assimp team
 
-
-
 All rights reserved.
 
 Redistribution and use of this software in source and binary forms,
@@ -43,17 +41,15 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 /** @file Implementation of the Terragen importer class */
 
-
-
 #ifndef ASSIMP_BUILD_NO_TERRAGEN_IMPORTER
 
 #include "TerragenLoader.h"
 #include <assimp/StreamReader.h>
-#include <assimp/Importer.hpp>
-#include <assimp/IOSystem.hpp>
+#include <assimp/importerdesc.h>
 #include <assimp/scene.h>
 #include <assimp/DefaultLogger.hpp>
-#include <assimp/importerdesc.h>
+#include <assimp/IOSystem.hpp>
+#include <assimp/Importer.hpp>
 
 using namespace Assimp;
 
@@ -72,78 +68,72 @@ static const aiImporterDesc desc = {
 
 // ------------------------------------------------------------------------------------------------
 // Constructor to be privately used by Importer
-TerragenImporter::TerragenImporter()
-: configComputeUVs (false)
-{}
+TerragenImporter::TerragenImporter() :
+        configComputeUVs(false) {}
 
 // ------------------------------------------------------------------------------------------------
 // Destructor, private as well
-TerragenImporter::~TerragenImporter()
-{}
+TerragenImporter::~TerragenImporter() {}
 
 // ------------------------------------------------------------------------------------------------
 // Returns whether the class can handle the format of the given file.
-bool TerragenImporter::CanRead( const std::string& pFile, IOSystem* pIOHandler, bool checkSig) const
-{
+bool TerragenImporter::CanRead(const std::string &pFile, IOSystem *pIOHandler, bool checkSig) const {
     // check file extension
     std::string extension = GetExtension(pFile);
 
-    if( extension == "ter")
+    if (extension == "ter")
         return true;
 
-    if(  !extension.length() || checkSig)   {
+    if (!extension.length() || 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;
-        const char* tokens[] = {"terragen"};
-        return SearchFileHeaderForToken(pIOHandler,pFile,tokens,1);
+        if (!pIOHandler) return true;
+        const char *tokens[] = { "terragen" };
+        return SearchFileHeaderForToken(pIOHandler, pFile, tokens, 1);
     }
     return false;
 }
 
 // ------------------------------------------------------------------------------------------------
 // Build a string of all file extensions supported
-const aiImporterDesc* TerragenImporter::GetInfo () const
-{
+const aiImporterDesc *TerragenImporter::GetInfo() const {
     return &desc;
 }
 
 // ------------------------------------------------------------------------------------------------
 // Setup import properties
-void TerragenImporter::SetupProperties(const Importer* pImp)
-{
+void TerragenImporter::SetupProperties(const Importer *pImp) {
     // AI_CONFIG_IMPORT_TER_MAKE_UVS
-    configComputeUVs = ( 0 != pImp->GetPropertyInteger(AI_CONFIG_IMPORT_TER_MAKE_UVS,0) );
+    configComputeUVs = (0 != pImp->GetPropertyInteger(AI_CONFIG_IMPORT_TER_MAKE_UVS, 0));
 }
 
 // ------------------------------------------------------------------------------------------------
 // Imports the given file into the given scene structure.
-void TerragenImporter::InternReadFile( const std::string& pFile,
-    aiScene* pScene, IOSystem* pIOHandler)
-{
-    IOStream* file = pIOHandler->Open( pFile, "rb");
+void TerragenImporter::InternReadFile(const std::string &pFile,
+        aiScene *pScene, IOSystem *pIOHandler) {
+    IOStream *file = pIOHandler->Open(pFile, "rb");
 
     // Check whether we can read from the file
-    if( file == NULL)
-        throw DeadlyImportError( "Failed to open TERRAGEN TERRAIN file " + pFile + ".");
+    if (file == NULL)
+        throw DeadlyImportError("Failed to open TERRAGEN TERRAIN file " + pFile + ".");
 
     // Construct a stream reader to read all data in the correct endianness
     StreamReaderLE reader(file);
-    if(reader.GetRemainingSize() < 16)
-        throw DeadlyImportError( "TER: file is too small" );
+    if (reader.GetRemainingSize() < 16)
+        throw DeadlyImportError("TER: file is too small");
 
     // Check for the existence of the two magic strings 'TERRAGEN' and 'TERRAIN '
-    if (::strncmp((const char*)reader.GetPtr(),AI_TERR_BASE_STRING,8))
-        throw DeadlyImportError( "TER: Magic string \'TERRAGEN\' not found" );
+    if (::strncmp((const char *)reader.GetPtr(), AI_TERR_BASE_STRING, 8))
+        throw DeadlyImportError("TER: Magic string \'TERRAGEN\' not found");
 
-    if (::strncmp((const char*)reader.GetPtr()+8,AI_TERR_TERRAIN_STRING,8))
-        throw DeadlyImportError( "TER: Magic string \'TERRAIN\' not found" );
+    if (::strncmp((const char *)reader.GetPtr() + 8, AI_TERR_TERRAIN_STRING, 8))
+        throw DeadlyImportError("TER: Magic string \'TERRAIN\' not found");
 
-    unsigned int x = 0,y = 0,mode = 0;
+    unsigned int x = 0, y = 0, mode = 0;
 
-    aiNode* root = pScene->mRootNode = new aiNode();
+    aiNode *root = pScene->mRootNode = new aiNode();
     root->mName.Set("<TERRAGEN.TERRAIN>");
 
     // Default scaling is 30
@@ -151,104 +141,98 @@ void TerragenImporter::InternReadFile( const std::string& pFile,
 
     // Now read all chunks until we're finished or an EOF marker is encountered
     reader.IncPtr(16);
-    while (reader.GetRemainingSize() >= 4)
-    {
-        const char* head = (const char*)reader.GetPtr();
+    while (reader.GetRemainingSize() >= 4) {
+        const char *head = (const char *)reader.GetPtr();
         reader.IncPtr(4);
 
         // EOF, break in every case
-        if (!::strncmp(head,AI_TERR_EOF_STRING,4))
+        if (!::strncmp(head, AI_TERR_EOF_STRING, 4))
             break;
 
         // Number of x-data points
-        if (!::strncmp(head,AI_TERR_CHUNK_XPTS,4))
-        {
+        if (!::strncmp(head, AI_TERR_CHUNK_XPTS, 4)) {
             x = (uint16_t)reader.GetI2();
         }
         // Number of y-data points
-        else if (!::strncmp(head,AI_TERR_CHUNK_YPTS,4))
-        {
+        else if (!::strncmp(head, AI_TERR_CHUNK_YPTS, 4)) {
             y = (uint16_t)reader.GetI2();
         }
         // Squared terrains width-1.
-        else if (!::strncmp(head,AI_TERR_CHUNK_SIZE,4))
-        {
-            x = y = (uint16_t)reader.GetI2()+1;
+        else if (!::strncmp(head, AI_TERR_CHUNK_SIZE, 4)) {
+            x = y = (uint16_t)reader.GetI2() + 1;
         }
         // terrain scaling
-        else if (!::strncmp(head,AI_TERR_CHUNK_SCAL,4))
-        {
+        else if (!::strncmp(head, AI_TERR_CHUNK_SCAL, 4)) {
             root->mTransformation.a1 = reader.GetF4();
             root->mTransformation.b2 = reader.GetF4();
             root->mTransformation.c3 = reader.GetF4();
         }
         // mapping == 1: earth radius
-        else if (!::strncmp(head,AI_TERR_CHUNK_CRAD,4))
-        {
+        else if (!::strncmp(head, AI_TERR_CHUNK_CRAD, 4)) {
             reader.GetF4();
         }
         // mapping mode
-        else if (!::strncmp(head,AI_TERR_CHUNK_CRVM,4))
-        {
+        else if (!::strncmp(head, AI_TERR_CHUNK_CRVM, 4)) {
             mode = reader.GetI1();
             if (0 != mode)
                 ASSIMP_LOG_ERROR("TER: Unsupported mapping mode, a flat terrain is returned");
         }
         // actual terrain data
-        else if (!::strncmp(head,AI_TERR_CHUNK_ALTW,4))
-        {
-            float hscale  = (float)reader.GetI2()  / 65536;
+        else if (!::strncmp(head, AI_TERR_CHUNK_ALTW, 4)) {
+            float hscale = (float)reader.GetI2() / 65536;
             float bheight = (float)reader.GetI2();
 
-            if (!hscale)hscale = 1;
+            if (!hscale) hscale = 1;
 
             // Ensure we have enough data
-            if (reader.GetRemainingSize() < x*y*2)
+            if (reader.GetRemainingSize() < x * y * 2)
                 throw DeadlyImportError("TER: ALTW chunk is too small");
 
             if (x <= 1 || y <= 1)
                 throw DeadlyImportError("TER: Invalid terrain size");
 
             // Allocate the output mesh
-            pScene->mMeshes = new aiMesh*[pScene->mNumMeshes = 1];
-            aiMesh* m = pScene->mMeshes[0] = new aiMesh();
+            pScene->mMeshes = new aiMesh *[pScene->mNumMeshes = 1];
+            aiMesh *m = pScene->mMeshes[0] = new aiMesh();
 
             // We return quads
-            aiFace* f = m->mFaces = new aiFace[m->mNumFaces = (x-1)*(y-1)];
-            aiVector3D* pv = m->mVertices = new aiVector3D[m->mNumVertices = m->mNumFaces*4];
+            aiFace *f = m->mFaces = new aiFace[m->mNumFaces = (x - 1) * (y - 1)];
+            aiVector3D *pv = m->mVertices = new aiVector3D[m->mNumVertices = m->mNumFaces * 4];
 
-            aiVector3D *uv( NULL );
-            float step_y( 0.0f ), step_x( 0.0f );
+            aiVector3D *uv(NULL);
+            float step_y(0.0f), step_x(0.0f);
             if (configComputeUVs) {
                 uv = m->mTextureCoords[0] = new aiVector3D[m->mNumVertices];
-                step_y = 1.f/y;
-                step_x = 1.f/x;
+                step_y = 1.f / y;
+                step_x = 1.f / x;
             }
-            const int16_t* data = (const int16_t*)reader.GetPtr();
+            const int16_t *data = (const int16_t *)reader.GetPtr();
 
-            for (unsigned int yy = 0, t = 0; yy < y-1;++yy) {
-                for (unsigned int xx = 0; xx < x-1;++xx,++f)    {
+            for (unsigned int yy = 0, t = 0; yy < y - 1; ++yy) {
+                for (unsigned int xx = 0; xx < x - 1; ++xx, ++f) {
 
                     // make verts
                     const float fy = (float)yy, fx = (float)xx;
-                    unsigned tmp,tmp2;
-                    *pv++ = aiVector3D(fx,fy,    (float)data[(tmp2=x*yy)    + xx] * hscale + bheight);
-                    *pv++ = aiVector3D(fx,fy+1,  (float)data[(tmp=x*(yy+1)) + xx] * hscale + bheight);
-                    *pv++ = aiVector3D(fx+1,fy+1,(float)data[tmp  + xx+1]         * hscale + bheight);
-                    *pv++ = aiVector3D(fx+1,fy,  (float)data[tmp2 + xx+1]         * hscale + bheight);
+                    unsigned tmp, tmp2;
+                    *pv++ = aiVector3D(fx, fy, (float)data[(tmp2 = x * yy) + xx] * hscale + bheight);
+                    *pv++ = aiVector3D(fx, fy + 1, (float)data[(tmp = x * (yy + 1)) + xx] * hscale + bheight);
+                    *pv++ = aiVector3D(fx + 1, fy + 1, (float)data[tmp + xx + 1] * hscale + bheight);
+                    *pv++ = aiVector3D(fx + 1, fy, (float)data[tmp2 + xx + 1] * hscale + bheight);
 
                     // also make texture coordinates, if necessary
                     if (configComputeUVs) {
-                        *uv++ = aiVector3D( step_x*xx,     step_y*yy,     0.f );
-                        *uv++ = aiVector3D( step_x*xx,     step_y*(yy+1), 0.f );
-                        *uv++ = aiVector3D( step_x*(xx+1), step_y*(yy+1), 0.f );
-                        *uv++ = aiVector3D( step_x*(xx+1), step_y*yy,     0.f );
+                        *uv++ = aiVector3D(step_x * xx, step_y * yy, 0.f);
+                        *uv++ = aiVector3D(step_x * xx, step_y * (yy + 1), 0.f);
+                        *uv++ = aiVector3D(step_x * (xx + 1), step_y * (yy + 1), 0.f);
+                        *uv++ = aiVector3D(step_x * (xx + 1), step_y * yy, 0.f);
                     }
 
                     // make indices
                     f->mIndices = new unsigned int[f->mNumIndices = 4];
-                    for (unsigned int i = 0; i < 4;++i)
-                        f->mIndices[i] = t++;
+                    for (unsigned int i = 0; i < 4; ++i) {
+                        f->mIndices[i] = t;
+                        t++;
+                    }
                 }
             }
 

code/Terragen/TerragenLoader.h

@@ -4,7 +4,6 @@ Open Asset Import Library (assimp)
 
 Copyright (c) 2006-2020, assimp team
 
-
 All rights reserved.
 
 Redistribution and use of this software in source and binary forms,
@@ -47,21 +46,21 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #define INCLUDED_AI_TERRAGEN_TERRAIN_LOADER_H
 
 #include <assimp/BaseImporter.h>
-namespace Assimp    {
+namespace Assimp {
 
 // Magic strings
-#define AI_TERR_BASE_STRING         "TERRAGEN"
-#define AI_TERR_TERRAIN_STRING      "TERRAIN "
-#define AI_TERR_EOF_STRING          "EOF "
+#define AI_TERR_BASE_STRING "TERRAGEN"
+#define AI_TERR_TERRAIN_STRING "TERRAIN "
+#define AI_TERR_EOF_STRING "EOF "
 
 // Chunka
-#define AI_TERR_CHUNK_XPTS          "XPTS"
-#define AI_TERR_CHUNK_YPTS          "YPTS"
-#define AI_TERR_CHUNK_SIZE          "SIZE"
-#define AI_TERR_CHUNK_SCAL          "SCAL"
-#define AI_TERR_CHUNK_CRAD          "CRAD"
-#define AI_TERR_CHUNK_CRVM          "CRVM"
-#define AI_TERR_CHUNK_ALTW          "ALTW"
+#define AI_TERR_CHUNK_XPTS "XPTS"
+#define AI_TERR_CHUNK_YPTS "YPTS"
+#define AI_TERR_CHUNK_SIZE "SIZE"
+#define AI_TERR_CHUNK_SCAL "SCAL"
+#define AI_TERR_CHUNK_CRAD "CRAD"
+#define AI_TERR_CHUNK_CRVM "CRVM"
+#define AI_TERR_CHUNK_ALTW "ALTW"
 
 // ---------------------------------------------------------------------------
 /** @brief Importer class to load Terragen (0.9) terrain files.
@@ -69,33 +68,28 @@ namespace Assimp    {
  *  The loader is basing on the information found here:
  *  http://www.planetside.co.uk/terragen/dev/tgterrain.html#chunks
 */
-class TerragenImporter : public BaseImporter
-{
+class TerragenImporter : public BaseImporter {
 public:
     TerragenImporter();
     ~TerragenImporter();
 
-
 public:
-
     // -------------------------------------------------------------------
-    bool CanRead( const std::string& pFile, IOSystem* pIOHandler,
-        bool checkSig) const;
+    bool CanRead(const std::string &pFile, IOSystem *pIOHandler,
+            bool checkSig) const;
 
 protected:
-
     // -------------------------------------------------------------------
-    const aiImporterDesc* GetInfo () const;
+    const aiImporterDesc *GetInfo() const;
 
     // -------------------------------------------------------------------
-    void InternReadFile( const std::string& pFile, aiScene* pScene,
-        IOSystem* pIOHandler);
+    void InternReadFile(const std::string &pFile, aiScene *pScene,
+            IOSystem *pIOHandler);
 
     // -------------------------------------------------------------------
-    void SetupProperties(const Importer* pImp);
+    void SetupProperties(const Importer *pImp);
 
 private:
-
     bool configComputeUVs;
 
 }; //! class TerragenImporter

code/Unreal/UnrealLoader.cpp

@@ -5,8 +5,6 @@ Open Asset Import Library (assimp)
 
 Copyright (c) 2006-2020, assimp team
 
-
-
 All rights reserved.
 
 Redistribution and use of this software in source and binary forms,
@@ -48,26 +46,112 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *    http://local.wasp.uwa.edu.au/~pbourke/dataformats/unreal/
  */
 
-
-
 #ifndef ASSIMP_BUILD_NO_3D_IMPORTER
 
 #include "Unreal/UnrealLoader.h"
 #include "PostProcessing/ConvertToLHProcess.h"
 
-#include <assimp/StreamReader.h>
 #include <assimp/ParsingUtils.h>
+#include <assimp/StreamReader.h>
 #include <assimp/fast_atof.h>
-#include <assimp/Importer.hpp>
+#include <assimp/importerdesc.h>
+#include <assimp/scene.h>
 #include <assimp/DefaultLogger.hpp>
 #include <assimp/IOSystem.hpp>
-#include <assimp/scene.h>
-#include <assimp/importerdesc.h>
+#include <assimp/Importer.hpp>
 
+#include <stdint.h>
 #include <memory>
 
 using namespace Assimp;
 
+namespace Unreal {
+
+/*
+    0 = Normal one-sided
+    1 = Normal two-sided
+    2 = Translucent two-sided
+    3 = Masked two-sided
+    4 = Modulation blended two-sided
+    8 = Placeholder triangle for weapon positioning (invisible)
+    */
+enum MeshFlags {
+    MF_NORMAL_OS = 0,
+    MF_NORMAL_TS = 1,
+    MF_NORMAL_TRANS_TS = 2,
+    MF_NORMAL_MASKED_TS = 3,
+    MF_NORMAL_MOD_TS = 4,
+    MF_WEAPON_PLACEHOLDER = 8
+};
+
+// a single triangle
+struct Triangle {
+    uint16_t mVertex[3]; // Vertex indices
+    char mType; // James' Mesh Type
+    char mColor; // Color for flat and Gourand Shaded
+    unsigned char mTex[3][2]; // Texture UV coordinates
+    unsigned char mTextureNum; // Source texture offset
+    char mFlags; // Unreal Mesh Flags (unused)
+    unsigned int matIndex;
+};
+
+// temporary representation for a material
+struct TempMat {
+    TempMat() :
+            type(MF_NORMAL_OS), tex(), numFaces(0) {}
+
+    explicit TempMat(const Triangle &in) :
+            type((Unreal::MeshFlags)in.mType), tex(in.mTextureNum), numFaces(0) {}
+
+    // type of mesh
+    Unreal::MeshFlags type;
+
+    // index of texture
+    unsigned int tex;
+
+    // number of faces using us
+    unsigned int numFaces;
+
+    // for std::find
+    bool operator==(const TempMat &o) {
+        return (tex == o.tex && type == o.type);
+    }
+};
+
+struct Vertex {
+    int32_t X : 11;
+    int32_t Y : 11;
+    int32_t Z : 10;
+};
+
+// UNREAL vertex compression
+inline void CompressVertex(const aiVector3D &v, uint32_t &out) {
+    union {
+        Vertex n;
+        int32_t t;
+    };
+    t = 0;
+    n.X = (int32_t)v.x;
+    n.Y = (int32_t)v.y;
+    n.Z = (int32_t)v.z;
+    ::memcpy(&out, &t, sizeof(int32_t));
+}
+
+// UNREAL vertex decompression
+inline void DecompressVertex(aiVector3D &v, int32_t in) {
+    union {
+        Vertex n;
+        int32_t i;
+    };
+    i = in;
+
+    v.x = (float)n.X;
+    v.y = (float)n.Y;
+    v.z = (float)n.Z;
+}
+
+} // end namespace Unreal
+
 static const aiImporterDesc desc = {
     "Unreal Mesh Importer",
     "",
@@ -81,79 +165,70 @@ static const aiImporterDesc desc = {
     "3d uc"
 };
 
-
 // ------------------------------------------------------------------------------------------------
 // Constructor to be privately used by Importer
-UnrealImporter::UnrealImporter()
-:   configFrameID   (0)
-,   configHandleFlags (true)
-{}
+UnrealImporter::UnrealImporter() :
+        mConfigFrameID(0), mConfigHandleFlags(true) {}
 
 // ------------------------------------------------------------------------------------------------
 // Destructor, private as well
-UnrealImporter::~UnrealImporter()
-{}
+UnrealImporter::~UnrealImporter() {}
 
 // ------------------------------------------------------------------------------------------------
 // Returns whether the class can handle the format of the given file.
-bool UnrealImporter::CanRead( const std::string& pFile, IOSystem* /*pIOHandler*/, bool /*checkSig*/) const
-{
-    return  SimpleExtensionCheck(pFile,"3d","uc");
+bool UnrealImporter::CanRead(const std::string &pFile, IOSystem * /*pIOHandler*/, bool /*checkSig*/) const {
+    return SimpleExtensionCheck(pFile, "3d", "uc");
 }
 
 // ------------------------------------------------------------------------------------------------
 // Build a string of all file extensions supported
-const aiImporterDesc* UnrealImporter::GetInfo () const
-{
+const aiImporterDesc *UnrealImporter::GetInfo() const {
     return &desc;
 }
 
 // ------------------------------------------------------------------------------------------------
 // Setup configuration properties for the loader
-void UnrealImporter::SetupProperties(const Importer* pImp)
-{
+void UnrealImporter::SetupProperties(const Importer *pImp) {
     // The
     // AI_CONFIG_IMPORT_UNREAL_KEYFRAME option overrides the
     // AI_CONFIG_IMPORT_GLOBAL_KEYFRAME option.
-    configFrameID = pImp->GetPropertyInteger(AI_CONFIG_IMPORT_UNREAL_KEYFRAME,-1);
-    if(static_cast<unsigned int>(-1) == configFrameID)  {
-        configFrameID = pImp->GetPropertyInteger(AI_CONFIG_IMPORT_GLOBAL_KEYFRAME,0);
+    mConfigFrameID = pImp->GetPropertyInteger(AI_CONFIG_IMPORT_UNREAL_KEYFRAME, -1);
+    if (static_cast<unsigned int>(-1) == mConfigFrameID) {
+        mConfigFrameID = pImp->GetPropertyInteger(AI_CONFIG_IMPORT_GLOBAL_KEYFRAME, 0);
     }
 
     // AI_CONFIG_IMPORT_UNREAL_HANDLE_FLAGS, default is true
-    configHandleFlags = (0 != pImp->GetPropertyInteger(AI_CONFIG_IMPORT_UNREAL_HANDLE_FLAGS,1));
+    mConfigHandleFlags = (0 != pImp->GetPropertyInteger(AI_CONFIG_IMPORT_UNREAL_HANDLE_FLAGS, 1));
 }
 
 // ------------------------------------------------------------------------------------------------
 // Imports the given file into the given scene structure.
-void UnrealImporter::InternReadFile( const std::string& pFile,
-    aiScene* pScene, IOSystem* pIOHandler)
-{
+void UnrealImporter::InternReadFile(const std::string &pFile,
+        aiScene *pScene, IOSystem *pIOHandler) {
     // For any of the 3 files being passed get the three correct paths
     // First of all, determine file extension
     std::string::size_type pos = pFile.find_last_of('.');
     std::string extension = GetExtension(pFile);
 
-    std::string d_path,a_path,uc_path;
-    if (extension == "3d")      {
+    std::string d_path, a_path, uc_path;
+    if (extension == "3d") {
         // jjjj_d.3d
         // jjjj_a.3d
         pos = pFile.find_last_of('_');
         if (std::string::npos == pos) {
             throw DeadlyImportError("UNREAL: Unexpected naming scheme");
         }
-        extension = pFile.substr(0,pos);
-    }
-    else {
-        extension = pFile.substr(0,pos);
+        extension = pFile.substr(0, pos);
+    } else {
+        extension = pFile.substr(0, pos);
     }
 
     // build proper paths
-    d_path  = extension+"_d.3d";
-    a_path  = extension+"_a.3d";
-    uc_path = extension+".uc";
+    d_path = extension + "_d.3d";
+    a_path = extension + "_a.3d";
+    uc_path = extension + ".uc";
 
-    ASSIMP_LOG_DEBUG_F( "UNREAL: data file is ", d_path);
+    ASSIMP_LOG_DEBUG_F("UNREAL: data file is ", d_path);
     ASSIMP_LOG_DEBUG_F("UNREAL: aniv file is ", a_path);
     ASSIMP_LOG_DEBUG_F("UNREAL: uc file is ", uc_path);
 
@@ -174,11 +249,11 @@ void UnrealImporter::InternReadFile( const std::string& pFile,
 
     // collect triangles
     std::vector<Unreal::Triangle> triangles(numTris);
-    for (auto & tri : triangles) {
-        for (unsigned int i = 0; i < 3;++i) {
+    for (auto &tri : triangles) {
+        for (unsigned int i = 0; i < 3; ++i) {
 
             tri.mVertex[i] = d_reader.GetI2();
-            if (tri.mVertex[i] >= numTris)  {
+            if (tri.mVertex[i] >= numTris) {
                 ASSIMP_LOG_WARN("UNREAL: vertex index out of range");
                 tri.mVertex[i] = 0;
             }
@@ -186,7 +261,7 @@ void UnrealImporter::InternReadFile( const std::string& pFile,
         tri.mType = d_reader.GetI1();
 
         // handle mesh flagss?
-        if (configHandleFlags)
+        if (mConfigHandleFlags)
             tri.mType = Unreal::MF_NORMAL_OS;
         else {
             // ignore MOD and MASKED for the moment, treat them as two-sided
@@ -195,12 +270,12 @@ void UnrealImporter::InternReadFile( const std::string& pFile,
         }
         d_reader.IncPtr(1);
 
-        for (unsigned int i = 0; i < 3;++i)
-            for (unsigned int i2 = 0; i2 < 2;++i2)
+        for (unsigned int i = 0; i < 3; ++i)
+            for (unsigned int i2 = 0; i2 < 2; ++i2)
                 tri.mTex[i][i2] = d_reader.GetI1();
 
         tri.mTextureNum = d_reader.GetI1();
-        maxTexIdx = std::max(maxTexIdx,(unsigned int)tri.mTextureNum);
+        maxTexIdx = std::max(maxTexIdx, (unsigned int)tri.mTextureNum);
         d_reader.IncPtr(1);
     }
 
@@ -211,63 +286,64 @@ void UnrealImporter::InternReadFile( const std::string& pFile,
 
     // read number of frames
     const uint32_t numFrames = a_reader.GetI2();
-    if (configFrameID >= numFrames) {
+    if (mConfigFrameID >= numFrames) {
         throw DeadlyImportError("UNREAL: The requested frame does not exist");
     }
 
     uint32_t st = a_reader.GetI2();
-    if (st != numVert*4u)
+    if (st != numVert * 4u)
         throw DeadlyImportError("UNREAL: Unexpected aniv file length");
 
     // skip to our frame
-    a_reader.IncPtr(configFrameID *numVert*4);
+    a_reader.IncPtr(mConfigFrameID * numVert * 4);
 
     // collect vertices
     std::vector<aiVector3D> vertices(numVert);
-    for (auto &vertex : vertices)    {
+    for (auto &vertex : vertices) {
         int32_t val = a_reader.GetI4();
-        Unreal::DecompressVertex(vertex ,val);
+        Unreal::DecompressVertex(vertex, val);
     }
 
     // list of textures.
-    std::vector< std::pair<unsigned int, std::string> > textures;
+    std::vector<std::pair<unsigned int, std::string>> textures;
 
     // allocate the output scene
-    aiNode* nd = pScene->mRootNode = new aiNode();
+    aiNode *nd = pScene->mRootNode = new aiNode();
     nd->mName.Set("<UnrealRoot>");
 
     // we can live without the uc file if necessary
-    std::unique_ptr<IOStream> pb (pIOHandler->Open(uc_path));
-    if (pb.get())   {
+    std::unique_ptr<IOStream> pb(pIOHandler->Open(uc_path));
+    if (pb.get()) {
 
         std::vector<char> _data;
-        TextFileToBuffer(pb.get(),_data);
-        const char* data = &_data[0];
+        TextFileToBuffer(pb.get(), _data);
+        const char *data = &_data[0];
 
-        std::vector< std::pair< std::string,std::string > > tempTextures;
+        std::vector<std::pair<std::string, std::string>> tempTextures;
 
         // do a quick search in the UC file for some known, usually texture-related, tags
-        for (;*data;++data) {
-            if (TokenMatchI(data,"#exec",5))    {
+        for (; *data; ++data) {
+            if (TokenMatchI(data, "#exec", 5)) {
                 SkipSpacesAndLineEnd(&data);
 
                 // #exec TEXTURE IMPORT [...] NAME=jjjjj [...] FILE=jjjj.pcx [...]
-                if (TokenMatchI(data,"TEXTURE",7))  {
+                if (TokenMatchI(data, "TEXTURE", 7)) {
                     SkipSpacesAndLineEnd(&data);
 
-                    if (TokenMatchI(data,"IMPORT",6))   {
-                        tempTextures.push_back(std::pair< std::string,std::string >());
-                        std::pair< std::string,std::string >& me = tempTextures.back();
-                        for (;!IsLineEnd(*data);++data) {
-                            if (!::ASSIMP_strincmp(data,"NAME=",5)) {
-                                const char *d = data+=5;
-                                for (;!IsSpaceOrNewLine(*data);++data);
-                                me.first = std::string(d,(size_t)(data-d));
-                            }
-                            else if (!::ASSIMP_strincmp(data,"FILE=",5))    {
-                                const char *d = data+=5;
-                                for (;!IsSpaceOrNewLine(*data);++data);
-                                me.second = std::string(d,(size_t)(data-d));
+                    if (TokenMatchI(data, "IMPORT", 6)) {
+                        tempTextures.push_back(std::pair<std::string, std::string>());
+                        std::pair<std::string, std::string> &me = tempTextures.back();
+                        for (; !IsLineEnd(*data); ++data) {
+                            if (!::ASSIMP_strincmp(data, "NAME=", 5)) {
+                                const char *d = data += 5;
+                                for (; !IsSpaceOrNewLine(*data); ++data)
+                                    ;
+                                me.first = std::string(d, (size_t)(data - d));
+                            } else if (!::ASSIMP_strincmp(data, "FILE=", 5)) {
+                                const char *d = data += 5;
+                                for (; !IsSpaceOrNewLine(*data); ++data)
+                                    ;
+                                me.second = std::string(d, (size_t)(data - d));
                             }
                         }
                         if (!me.first.length() || !me.second.length())
@@ -276,65 +352,61 @@ void UnrealImporter::InternReadFile( const std::string& pFile,
                 }
                 // #exec MESHMAP SETTEXTURE MESHMAP=box NUM=1 TEXTURE=Jtex1
                 // #exec MESHMAP SCALE MESHMAP=box X=0.1 Y=0.1 Z=0.2
-                else if (TokenMatchI(data,"MESHMAP",7)) {
+                else if (TokenMatchI(data, "MESHMAP", 7)) {
                     SkipSpacesAndLineEnd(&data);
 
-                    if (TokenMatchI(data,"SETTEXTURE",10)) {
+                    if (TokenMatchI(data, "SETTEXTURE", 10)) {
 
                         textures.push_back(std::pair<unsigned int, std::string>());
-                        std::pair<unsigned int, std::string>& me = textures.back();
+                        std::pair<unsigned int, std::string> &me = textures.back();
 
-                        for (;!IsLineEnd(*data);++data) {
-                            if (!::ASSIMP_strincmp(data,"NUM=",4))  {
+                        for (; !IsLineEnd(*data); ++data) {
+                            if (!::ASSIMP_strincmp(data, "NUM=", 4)) {
                                 data += 4;
-                                me.first = strtoul10(data,&data);
-                            }
-                            else if (!::ASSIMP_strincmp(data,"TEXTURE=",8)) {
+                                me.first = strtoul10(data, &data);
+                            } else if (!::ASSIMP_strincmp(data, "TEXTURE=", 8)) {
                                 data += 8;
                                 const char *d = data;
-                                for (;!IsSpaceOrNewLine(*data);++data);
-                                me.second = std::string(d,(size_t)(data-d));
+                                for (; !IsSpaceOrNewLine(*data); ++data)
+                                    ;
+                                me.second = std::string(d, (size_t)(data - d));
 
                                 // try to find matching path names, doesn't care if we don't find them
-                                for (std::vector< std::pair< std::string,std::string > >::const_iterator it = tempTextures.begin();
-                                     it != tempTextures.end(); ++it)    {
-                                    if ((*it).first == me.second)   {
+                                for (std::vector<std::pair<std::string, std::string>>::const_iterator it = tempTextures.begin();
+                                        it != tempTextures.end(); ++it) {
+                                    if ((*it).first == me.second) {
                                         me.second = (*it).second;
                                         break;
                                     }
                                 }
                             }
                         }
-                    }
-                    else if (TokenMatchI(data,"SCALE",5)) {
-
-                        for (;!IsLineEnd(*data);++data) {
-                            if (data[0] == 'X' && data[1] == '=')   {
-                                data = fast_atoreal_move<float>(data+2,(float&)nd->mTransformation.a1);
-                            }
-                            else if (data[0] == 'Y' && data[1] == '=')  {
-                                data = fast_atoreal_move<float>(data+2,(float&)nd->mTransformation.b2);
-                            }
-                            else if (data[0] == 'Z' && data[1] == '=')  {
-                                data = fast_atoreal_move<float>(data+2,(float&)nd->mTransformation.c3);
+                    } else if (TokenMatchI(data, "SCALE", 5)) {
+
+                        for (; !IsLineEnd(*data); ++data) {
+                            if (data[0] == 'X' && data[1] == '=') {
+                                data = fast_atoreal_move<float>(data + 2, (float &)nd->mTransformation.a1);
+                            } else if (data[0] == 'Y' && data[1] == '=') {
+                                data = fast_atoreal_move<float>(data + 2, (float &)nd->mTransformation.b2);
+                            } else if (data[0] == 'Z' && data[1] == '=') {
+                                data = fast_atoreal_move<float>(data + 2, (float &)nd->mTransformation.c3);
                             }
                         }
                     }
                 }
             }
         }
-    }
-    else    {
+    } else {
         ASSIMP_LOG_ERROR("Unable to open .uc file");
     }
 
     std::vector<Unreal::TempMat> materials;
-    materials.reserve(textures.size()*2+5);
+    materials.reserve(textures.size() * 2 + 5);
 
     // find out how many output meshes and materials we'll have and build material indices
-	for (Unreal::Triangle &tri : triangles) {
+    for (Unreal::Triangle &tri : triangles) {
         Unreal::TempMat mat(tri);
-        std::vector<Unreal::TempMat>::iterator nt = std::find(materials.begin(),materials.end(),mat);
+        std::vector<Unreal::TempMat>::iterator nt = std::find(materials.begin(), materials.end(), mat);
         if (nt == materials.end()) {
             // add material
             tri.matIndex = static_cast<unsigned int>(materials.size());
@@ -342,9 +414,8 @@ void UnrealImporter::InternReadFile( const std::string& pFile,
             materials.push_back(mat);
 
             ++pScene->mNumMeshes;
-        }
-        else {
-            tri.matIndex = static_cast<unsigned int>(nt-materials.begin());
+        } else {
+            tri.matIndex = static_cast<unsigned int>(nt - materials.begin());
             ++nt->numFaces;
         }
     }
@@ -354,65 +425,65 @@ void UnrealImporter::InternReadFile( const std::string& pFile,
     }
 
     // allocate meshes and bind them to the node graph
-    pScene->mMeshes = new aiMesh*[pScene->mNumMeshes];
-    pScene->mMaterials = new aiMaterial*[pScene->mNumMaterials = pScene->mNumMeshes];
+    pScene->mMeshes = new aiMesh *[pScene->mNumMeshes];
+    pScene->mMaterials = new aiMaterial *[pScene->mNumMaterials = pScene->mNumMeshes];
 
-    nd->mNumMeshes  = pScene->mNumMeshes;
+    nd->mNumMeshes = pScene->mNumMeshes;
     nd->mMeshes = new unsigned int[nd->mNumMeshes];
-    for (unsigned int i = 0; i < pScene->mNumMeshes;++i) {
-        aiMesh* m = pScene->mMeshes[i] =  new aiMesh();
+    for (unsigned int i = 0; i < pScene->mNumMeshes; ++i) {
+        aiMesh *m = pScene->mMeshes[i] = new aiMesh();
         m->mPrimitiveTypes = aiPrimitiveType_TRIANGLE;
 
         const unsigned int num = materials[i].numFaces;
-        m->mFaces            = new aiFace     [num];
-        m->mVertices         = new aiVector3D [num*3];
-        m->mTextureCoords[0] = new aiVector3D [num*3];
+        m->mFaces = new aiFace[num];
+        m->mVertices = new aiVector3D[num * 3];
+        m->mTextureCoords[0] = new aiVector3D[num * 3];
 
         nd->mMeshes[i] = i;
 
         // create materials, too
-        aiMaterial* mat = new aiMaterial();
+        aiMaterial *mat = new aiMaterial();
         pScene->mMaterials[i] = mat;
 
         // all white by default - texture rulez
-        aiColor3D color(1.f,1.f,1.f);
+        aiColor3D color(1.f, 1.f, 1.f);
 
         aiString s;
-        ::ai_snprintf( s.data, MAXLEN, "mat%u_tx%u_",i,materials[i].tex );
+        ::ai_snprintf(s.data, MAXLEN, "mat%u_tx%u_", i, materials[i].tex);
 
         // set the two-sided flag
         if (materials[i].type == Unreal::MF_NORMAL_TS) {
             const int twosided = 1;
-            mat->AddProperty(&twosided,1,AI_MATKEY_TWOSIDED);
-            ::strcat(s.data,"ts_");
-        }
-        else ::strcat(s.data,"os_");
+            mat->AddProperty(&twosided, 1, AI_MATKEY_TWOSIDED);
+            ::strcat(s.data, "ts_");
+        } else
+            ::strcat(s.data, "os_");
 
         // make TRANS faces 90% opaque that RemRedundantMaterials won't catch us
-        if (materials[i].type == Unreal::MF_NORMAL_TRANS_TS)    {
+        if (materials[i].type == Unreal::MF_NORMAL_TRANS_TS) {
             const float opac = 0.9f;
-            mat->AddProperty(&opac,1,AI_MATKEY_OPACITY);
-            ::strcat(s.data,"tran_");
-        }
-        else ::strcat(s.data,"opaq_");
+            mat->AddProperty(&opac, 1, AI_MATKEY_OPACITY);
+            ::strcat(s.data, "tran_");
+        } else
+            ::strcat(s.data, "opaq_");
 
         // a special name for the weapon attachment point
         if (materials[i].type == Unreal::MF_WEAPON_PLACEHOLDER) {
-            s.length = ::ai_snprintf( s.data, MAXLEN, "$WeaponTag$" );
-            color = aiColor3D(0.f,0.f,0.f);
+            s.length = ::ai_snprintf(s.data, MAXLEN, "$WeaponTag$");
+            color = aiColor3D(0.f, 0.f, 0.f);
         }
 
         // set color and name
-        mat->AddProperty(&color,1,AI_MATKEY_COLOR_DIFFUSE);
-        s.length = (ai_uint32)::strlen(s.data);
-        mat->AddProperty(&s,AI_MATKEY_NAME);
+        mat->AddProperty(&color, 1, AI_MATKEY_COLOR_DIFFUSE);
+        s.length = static_cast<ai_uint32>(::strlen(s.data));
+        mat->AddProperty(&s, AI_MATKEY_NAME);
 
         // set texture, if any
         const unsigned int tex = materials[i].tex;
-        for (std::vector< std::pair< unsigned int, std::string > >::const_iterator it = textures.begin();it != textures.end();++it) {
+        for (std::vector<std::pair<unsigned int, std::string>>::const_iterator it = textures.begin(); it != textures.end(); ++it) {
             if ((*it).first == tex) {
                 s.Set((*it).second);
-                mat->AddProperty(&s,AI_MATKEY_TEXTURE_DIFFUSE(0));
+                mat->AddProperty(&s, AI_MATKEY_TEXTURE_DIFFUSE(0));
                 break;
             }
         }
@@ -421,17 +492,17 @@ void UnrealImporter::InternReadFile( const std::string& pFile,
     // fill them.
     for (const Unreal::Triangle &tri : triangles) {
         Unreal::TempMat mat(tri);
-        std::vector<Unreal::TempMat>::iterator nt = std::find(materials.begin(),materials.end(),mat);
+        std::vector<Unreal::TempMat>::iterator nt = std::find(materials.begin(), materials.end(), mat);
 
-        aiMesh* mesh = pScene->mMeshes[nt-materials.begin()];
-        aiFace& f    = mesh->mFaces[mesh->mNumFaces++];
-        f.mIndices   = new unsigned int[f.mNumIndices = 3];
+        aiMesh *mesh = pScene->mMeshes[nt - materials.begin()];
+        aiFace &f = mesh->mFaces[mesh->mNumFaces++];
+        f.mIndices = new unsigned int[f.mNumIndices = 3];
 
-        for (unsigned int i = 0; i < 3;++i,mesh->mNumVertices++) {
+        for (unsigned int i = 0; i < 3; ++i, mesh->mNumVertices++) {
             f.mIndices[i] = mesh->mNumVertices;
 
-            mesh->mVertices[mesh->mNumVertices] = vertices[ tri.mVertex[i] ];
-            mesh->mTextureCoords[0][mesh->mNumVertices] = aiVector3D( tri.mTex[i][0] / 255.f, 1.f - tri.mTex[i][1] / 255.f, 0.f);
+            mesh->mVertices[mesh->mNumVertices] = vertices[tri.mVertex[i]];
+            mesh->mTextureCoords[0][mesh->mNumVertices] = aiVector3D(tri.mTex[i][0] / 255.f, 1.f - tri.mTex[i][1] / 255.f, 0.f);
         }
     }
 

code/Unreal/UnrealLoader.h

@@ -4,7 +4,6 @@ Open Asset Import Library (assimp)
 
 Copyright (c) 2006-2020, assimp team
 
-
 All rights reserved.
 
 Redistribution and use of this software in source and binary forms,
@@ -47,161 +46,57 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #define INCLUDED_AI_3D_LOADER_H
 
 #include <assimp/BaseImporter.h>
-#include <stdint.h>
-
-namespace Assimp    {
-namespace Unreal {
-
-    /*
-    0 = Normal one-sided
-    1 = Normal two-sided
-    2 = Translucent two-sided
-    3 = Masked two-sided
-    4 = Modulation blended two-sided
-    8 = Placeholder triangle for weapon positioning (invisible)
-    */
-enum MeshFlags {
-    MF_NORMAL_OS            = 0,
-    MF_NORMAL_TS            = 1,
-    MF_NORMAL_TRANS_TS      = 2,
-    MF_NORMAL_MASKED_TS     = 3,
-    MF_NORMAL_MOD_TS        = 4,
-    MF_WEAPON_PLACEHOLDER   = 8
-};
-
-    // a single triangle
-struct Triangle {
-   uint16_t mVertex[3];       // Vertex indices
-   char mType;                // James' Mesh Type
-   char mColor;               // Color for flat and Gourand Shaded
-   unsigned char mTex[3][2];  // Texture UV coordinates
-   unsigned char mTextureNum; // Source texture offset
-   char mFlags;               // Unreal Mesh Flags (unused)
-
-   unsigned int matIndex;
-};
-
-// temporary representation for a material
-struct TempMat  {
-    TempMat()
-        :   type()
-        ,   tex()
-        ,   numFaces    (0)
-    {}
-
-    explicit TempMat(const Triangle& in)
-        :   type        ((Unreal::MeshFlags)in.mType)
-        ,   tex         (in.mTextureNum)
-        ,   numFaces    (0)
-    {}
-
-    // type of mesh
-    Unreal::MeshFlags type;
-
-    // index of texture
-    unsigned int tex;
-
-    // number of faces using us
-    unsigned int numFaces;
-
-    // for std::find
-    bool operator == (const TempMat& o )    {
-        return (tex == o.tex && type == o.type);
-    }
-};
-
-struct Vertex
-{
-    int32_t X : 11;
-    int32_t Y : 11;
-    int32_t Z : 10;
-};
-
-    // UNREAL vertex compression
-inline void CompressVertex(const aiVector3D& v, uint32_t& out)
-{
-    union {
-        Vertex n;
-        int32_t t;
-    };
-    n.X = (int32_t)v.x;
-    n.Y = (int32_t)v.y;
-    n.Z = (int32_t)v.z;
-    ::memcpy( &out, &t, sizeof(int32_t));
-    //out = t;
-}
-
-    // UNREAL vertex decompression
-inline void DecompressVertex(aiVector3D& v, int32_t in)
-{
-    union {
-        Vertex n;
-        int32_t i;
-    };
-    i = in;
-
-    v.x = (float)n.X;
-    v.y = (float)n.Y;
-    v.z = (float)n.Z;
-}
-
-} // end namespace Unreal
+
+namespace Assimp {
 
 // ---------------------------------------------------------------------------
 /** @brief Importer class to load UNREAL files (*.3d)
 */
-class UnrealImporter : public BaseImporter
-{
+class UnrealImporter : public BaseImporter {
 public:
     UnrealImporter();
     ~UnrealImporter();
 
-
-public:
-
     // -------------------------------------------------------------------
     /** @brief Returns whether we can handle the format of the given file
      *
      *  See BaseImporter::CanRead() for details.
      **/
-    bool CanRead( const std::string& pFile, IOSystem* pIOHandler,
-        bool checkSig) const;
+    bool CanRead(const std::string &pFile, IOSystem *pIOHandler,
+            bool checkSig) const;
 
 protected:
-
     // -------------------------------------------------------------------
     /** @brief Called by Importer::GetExtensionList()
      *
      * See #BaseImporter::GetInfo for the details
      */
-    const aiImporterDesc* GetInfo () const;
-
+    const aiImporterDesc *GetInfo() const;
 
     // -------------------------------------------------------------------
     /** @brief Setup properties for the importer
      *
      * See BaseImporter::SetupProperties() for details
      */
-    void SetupProperties(const Importer* pImp);
-
+    void SetupProperties(const Importer *pImp);
 
     // -------------------------------------------------------------------
     /** @brief Imports the given file into the given scene structure.
      *
      * See BaseImporter::InternReadFile() for details
      */
-    void InternReadFile( const std::string& pFile, aiScene* pScene,
-        IOSystem* pIOHandler);
+    void InternReadFile(const std::string &pFile, aiScene *pScene,
+            IOSystem *pIOHandler);
 
 private:
-
     //! frame to be loaded
-    uint32_t configFrameID;
+    uint32_t mConfigFrameID;
 
     //! process surface flags
-    bool configHandleFlags;
+    bool mConfigHandleFlags;
 
 }; // !class UnrealImporter
 
 } // end of namespace Assimp
+
 #endif // AI_UNREALIMPORTER_H_INC

code/XGL/XGLLoader.cpp

@@ -176,7 +176,7 @@ void XGLImporter::InternReadFile( const std::string& pFile,
         raw_reader->IncPtr(2);
 
         zstream.next_in   = reinterpret_cast<Bytef*>( raw_reader->GetPtr() );
-        zstream.avail_in  = raw_reader->GetRemainingSize();
+        zstream.avail_in  = (uInt) raw_reader->GetRemainingSize();
 
         size_t total = 0l;
 

code/glTF2/glTF2Asset.h

@@ -58,6 +58,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include <algorithm>
 #include <list>
 #include <map>
+#include <set>
 #include <stdexcept>
 #include <string>
 #include <vector>
@@ -81,14 +82,18 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #define ASSIMP_GLTF_USE_UNORDERED_MULTIMAP
 #else
 #define gltf_unordered_map map
+#define gltf_unordered_set set
 #endif
 
 #ifdef ASSIMP_GLTF_USE_UNORDERED_MULTIMAP
 #include <unordered_map>
+#include <unordered_set>
 #if _MSC_VER > 1600
 #define gltf_unordered_map unordered_map
+#define gltf_unordered_set unordered_set
 #else
 #define gltf_unordered_map tr1::unordered_map
+#define gltf_unordered_set tr1::unordered_set
 #endif
 #endif
 
@@ -375,8 +380,8 @@ struct Accessor : public Object {
 
     inline uint8_t *GetPointer();
 
-    template <class T>
-    bool ExtractData(T *&outData);
+    template<class T>
+    void ExtractData(T *&outData);
 
     void WriteData(size_t count, const void *src_buffer, size_t src_stride);
 
@@ -874,6 +879,8 @@ class LazyDict : public LazyDictBase {
     Value *mDict; //! JSON dictionary object
     Asset &mAsset; //! The asset instance
 
+    std::gltf_unordered_set<unsigned int> mRecursiveReferenceCheck;  //! Used by Retrieve to prevent recursive lookups
+
     void AttachToDocument(Document &doc);
     void DetachFromDocument();
 

code/glTF2/glTF2Asset.inl

@@ -280,6 +280,11 @@ Ref<T> LazyDict<T>::Retrieve(unsigned int i) {
         throw DeadlyImportError("GLTF: Object at index \"" + to_string(i) + "\" is not a JSON object");
     }
 
+    if (mRecursiveReferenceCheck.find(i) != mRecursiveReferenceCheck.end()) {
+        throw DeadlyImportError("GLTF: Object at index \"" + to_string(i) + "\" has recursive reference to itself");
+    }
+    mRecursiveReferenceCheck.insert(i);
+
     // Unique ptr prevents memory leak in case of Read throws an exception
     auto inst = std::unique_ptr<T>(new T());
     inst->id = std::string(mDictId) + "_" + to_string(i);
@@ -287,7 +292,9 @@ Ref<T> LazyDict<T>::Retrieve(unsigned int i) {
     ReadMember(obj, "name", inst->name);
     inst->Read(obj, mAsset);
 
-    return Add(inst.release());
+    Ref<T> result = Add(inst.release());
+    mRecursiveReferenceCheck.erase(i);
+    return result;
 }
 
 template <class T>
@@ -508,18 +515,23 @@ inline size_t Buffer::AppendData(uint8_t *data, size_t length) {
 }
 
 inline void Buffer::Grow(size_t amount) {
-    if (amount <= 0) return;
+    if (amount <= 0) {
+        return;
+    }
+    
+    // Capacity is big enough
     if (capacity >= byteLength + amount) {
         byteLength += amount;
         return;
     }
 
-    // Shift operation is standard way to divide integer by 2, it doesn't cast it to float back and forth, also works for odd numbers,
-    // originally it would look like: static_cast<size_t>(capacity * 1.5f)
-    capacity = std::max(capacity + (capacity >> 1), byteLength + amount);
+    // Just allocate data which we need
+    capacity = byteLength + amount;
 
     uint8_t *b = new uint8_t[capacity];
-    if (mData) memcpy(b, mData.get(), byteLength);
+    if (nullptr != mData) {
+        memcpy(b, mData.get(), byteLength);
+    }
     mData.reset(b, std::default_delete<uint8_t[]>());
     byteLength += amount;
 }
@@ -608,10 +620,13 @@ inline void CopyData(size_t count,
 }
 } // namespace
 
-template <class T>
-bool Accessor::ExtractData(T *&outData) {
-    uint8_t *data = GetPointer();
-    if (!data) return false;
+template<class T>
+void Accessor::ExtractData(T *&outData)
+{
+    uint8_t* data = GetPointer();
+    if (!data) {
+        throw DeadlyImportError("GLTF: data is NULL");
+    }
 
     const size_t elemSize = GetElementSize();
     const size_t totalSize = elemSize * count;
@@ -631,8 +646,6 @@ bool Accessor::ExtractData(T *&outData) {
             memcpy(outData + i, data + i * stride, elemSize);
         }
     }
-
-    return true;
 }
 
 inline void Accessor::WriteData(size_t _count, const void *src_buffer, size_t src_stride) {

contrib/irrXML/CMakeLists.txt

@@ -15,7 +15,11 @@ if ( MSVC )
 endif ( MSVC )
 
 IF(CMAKE_SYSTEM_NAME MATCHES "(Darwin|FreeBSD)")
-  add_library(IrrXML ${IrrXML_SRCS})
+  IF(APPLE)
+    add_library(IrrXML STATIC ${IrrXML_SRCS})
+  ELSE()
+    add_library(IrrXML ${IrrXML_SRCS})
+  ENDIF()
 ELSE()
   add_library(IrrXML STATIC ${IrrXML_SRCS})
 ENDIF()

contrib/irrXML/CXMLReaderImpl.h

@@ -8,16 +8,7 @@
 #include "irrXML.h"
 #include "irrString.h"
 #include "irrArray.h"
-
-#include <cassert>
-#include <stdlib.h>    
-#include <cctype>
-#include <cstdint>
-//using namespace Assimp;
-
-// For locale independent number conversion
-#include <sstream>
-#include <locale>
+#include "fast_atof.h"
 
 #ifdef _DEBUG
 #define IRR_DEBUGPRINT(x) printf((x));
@@ -37,14 +28,23 @@ template<class char_type, class superclass>
 class CXMLReaderImpl : public IIrrXMLReader<char_type, superclass>
 {
 public:
-
 	//! Constructor
-	CXMLReaderImpl(IFileReadCallBack* callback, bool deleteCallBack = true)
-		: TextData(0), P(0), TextBegin(0), TextSize(0), CurrentNodeType(EXN_NONE),
-		SourceFormat(ETF_ASCII), TargetFormat(ETF_ASCII)
-	{
-		if (!callback)
+	CXMLReaderImpl(IFileReadCallBack* callback, bool deleteCallBack = true) 
+	: TextData(0)
+	, P(0)
+	, TextBegin(0)
+	, TextSize(0)
+	, CurrentNodeType(EXN_NONE)
+	, SourceFormat(ETF_ASCII)
+	, TargetFormat(ETF_ASCII)
+	, NodeName ()
+	, EmptyString()
+	, IsEmptyElement(false)
+	, SpecialCharacters()
+	, Attributes() {
+		if (!callback) {
 			return;
+		}
 
 		storeTargetFormat();
 
@@ -168,8 +168,7 @@ public:
 			return 0;
 
 		core::stringc c = attr->Value.c_str();
-        return static_cast<float>(atof(c.c_str()));
-        //return fast_atof(c.c_str());
+		return core::fast_atof(c.c_str());
 	}
 
 
@@ -181,11 +180,7 @@ public:
 			return 0;
 
 		core::stringc c = attrvalue;
-		std::istringstream sstr(c.c_str());
-		sstr.imbue(std::locale("C")); // Locale free number convert
-		float fNum;
-		sstr >> fNum;
-		return fNum;
+		return core::fast_atof(c.c_str());
 	}
 
 
@@ -228,7 +223,7 @@ private:
 	{
 		char_type* start = P;
 
-		// move forward until '<' found
+		// more forward until '<' found
 		while(*P != L'<' && *P)
 			++P;
 
@@ -438,10 +433,6 @@ private:
 		while(*P != L'>')
 			++P;
 
-    // remove trailing whitespace, if any
-    while( std::isspace( P[-1]))
-      --P;
-
 		NodeName = core::string<char_type>(pBeginClose, (int)(P - pBeginClose));
 		++P;
 	}
@@ -676,12 +667,8 @@ private:
 
 			TextData = new char_type[sizeWithoutHeader];
 
-			// MSVC debugger complains here about loss of data ...
-			size_t numShift = sizeof( char_type) * 8;
-			assert(numShift < 64);
-			const src_char_type cc = (src_char_type)(((uint64_t(1u) << numShift) - 1));
 			for (int i=0; i<sizeWithoutHeader; ++i)
-				TextData[i] = char_type( source[i] & cc); 
+				TextData[i] = (char_type)source[i];
 
 			TextBegin = TextData;
 			TextSize = sizeWithoutHeader;

contrib/irrXML/fast_atof.h

@@ -0,0 +1,139 @@
+// Copyright (C) 2002-2005 Nikolaus Gebhardt
+// This file is part of the "Irrlicht Engine" and the "irrXML" project.
+// For conditions of distribution and use, see copyright notice in irrlicht.h and irrXML.h
+
+#ifndef __FAST_A_TO_F_H_INCLUDED__
+#define __FAST_A_TO_F_H_INCLUDED__
+
+#include <stdlib.h>
+#include <math.h>
+
+namespace irr
+{
+namespace core
+{
+
+const float fast_atof_table[] =	{
+										0.f,
+										0.1f,
+										0.01f,
+										0.001f,
+										0.0001f,
+										0.00001f,
+										0.000001f,
+										0.0000001f,
+										0.00000001f,
+										0.000000001f,
+										0.0000000001f,
+										0.00000000001f,
+										0.000000000001f,
+										0.0000000000001f,
+										0.00000000000001f,
+										0.000000000000001f
+									};
+
+//! Provides a fast function for converting a string into a float,
+//! about 6 times faster than atof in win32.
+// If you find any bugs, please send them to me, niko (at) irrlicht3d.org.
+inline char* fast_atof_move(char* c, float& out)
+{
+	bool inv = false;
+	char *t;
+	float f;
+
+	if (*c=='-')
+	{
+		c++;
+		inv = true;
+	}
+
+	f = (float)strtol(c, &t, 10);
+
+	c = t;
+
+	if (*c == '.')
+	{
+		c++;
+
+		float pl = (float)strtol(c, &t, 10);
+		pl *= fast_atof_table[t-c];
+
+		f += pl;
+
+		c = t;
+
+		if (*c == 'e')
+		{
+			++c;
+			float exp = (float)strtol(c, &t, 10);
+			f *= (float)pow(10.0f, exp);
+			c = t;
+		}
+	}
+
+	if (inv)
+		f *= -1.0f;
+	
+	out = f;
+	return c;
+}
+
+//! Provides a fast function for converting a string into a float,
+//! about 6 times faster than atof in win32.
+// If you find any bugs, please send them to me, niko (at) irrlicht3d.org.
+inline const char* fast_atof_move_const(const char* c, float& out)
+{
+	bool inv = false;
+	char *t;
+	float f;
+
+	if (*c=='-')
+	{
+		c++;
+		inv = true;
+	}
+
+	f = (float)strtol(c, &t, 10);
+
+	c = t;
+
+	if (*c == '.')
+	{
+		c++;
+
+		float pl = (float)strtol(c, &t, 10);
+		pl *= fast_atof_table[t-c];
+
+		f += pl;
+
+		c = t;
+
+		if (*c == 'e') 
+		{ 
+			++c; 
+			f32 exp = (f32)strtol(c, &t, 10); 
+			f *= (f32)powf(10.0f, exp); 
+			c = t; 
+		}
+	}
+
+	if (inv)
+		f *= -1.0f;
+	
+	out = f;
+	return c;
+}
+
+
+inline float fast_atof(const char* c)
+{
+	float ret;
+	fast_atof_move_const(c, ret);
+	return ret;
+}
+
+} // end namespace core
+}// end namespace irr
+
+#endif
+

contrib/irrXML/irrArray.h

@@ -21,7 +21,8 @@ class array
 {
 
 public:
-	array() 
+
+	array()
 		: data(0), allocated(0), used(0),
 			free_when_destroyed(true), is_sorted(true)
 	{

contrib/irrXML/irrString.h

@@ -29,7 +29,7 @@ public:
 
 	//! Default constructor
 	string()
-	: array(0), allocated(1), used(1)
+	: array(0), allocated(1), used(1) 
 	{
 		array = new T[1];
 		array[0] = 0x0;
@@ -39,7 +39,7 @@ public:
 
 	//! Constructor
 	string(const string<T>& other)
-	: array(0), allocated(0), used(0)
+	:  array(0), allocated(0), used(0)
 	{
 		*this = other;
 	}
@@ -47,7 +47,7 @@ public:
 
 	//! Constructs a string from an int
 	string(int number)
-	: array(0), allocated(0), used(0)
+	: array(0), allocated(0), used(0) 
 	{
 		// store if negative and make positive
 
@@ -117,7 +117,7 @@ public:
 	//! Constructor for unicode and ascii strings
 	template <class B>
 	string(const B* c)
-	: array(0),allocated(0), used(0)
+	: array(0), allocated(0), used(0)
 	{
 		*this = c;
 	}

contrib/irrXML/irrTypes.h

@@ -79,13 +79,8 @@ typedef unsigned short wchar_t;
 #endif // microsoft compiler
 
 //! define a break macro for debugging only in Win32 mode.
-// WORKAROUND (assimp): remove __asm
-#if defined(WIN32) && defined(_MSC_VER) && defined(_DEBUG)
-#if defined(_M_IX86)
-#define _IRR_DEBUG_BREAK_IF( _CONDITION_ ) /*if (_CONDITION_) {_asm int 3}*/
-#else
-#define _IRR_DEBUG_BREAK_IF( _CONDITION_ )
-#endif
+#if !defined(_WIN64) && defined(WIN32) && defined(_MSC_VER) && defined(_DEBUG)
+#define _IRR_DEBUG_BREAK_IF( _CONDITION_ ) if (_CONDITION_) {_asm int 3}
 #else 
 #define _IRR_DEBUG_BREAK_IF( _CONDITION_ )
 #endif
@@ -96,10 +91,8 @@ When you call unmanaged code that returns a bool type value of false from manage
 the return value may appear as true. See 
 http://support.microsoft.com/default.aspx?kbid=823071 for details. 
 Compiler version defines: VC6.0 : 1200, VC7.0 : 1300, VC7.1 : 1310, VC8.0 : 1400*/
-
-// WORKAROUND (assimp): remove __asm 
-#if defined(WIN32) && defined(_MSC_VER) && (_MSC_VER > 1299) && (_MSC_VER < 1400)
-#define _IRR_IMPLEMENT_MANAGED_MARSHALLING_BUGFIX /*__asm mov eax,100*/
+#if !defined(_WIN64) && defined(WIN32) && defined(_MSC_VER) && (_MSC_VER > 1299) && (_MSC_VER < 1400)
+#define _IRR_IMPLEMENT_MANAGED_MARSHALLING_BUGFIX __asm mov eax,100
 #else
 #define _IRR_IMPLEMENT_MANAGED_MARSHALLING_BUGFIX
 #endif // _IRR_MANAGED_MARSHALLING_BUGFIX

contrib/irrXML/irrXML.cpp

@@ -2,14 +2,10 @@
 // This file is part of the "Irrlicht Engine" and the "irrXML" project.
 // For conditions of distribution and use, see copyright notice in irrlicht.h and/or irrXML.h
 
-// Need to include Assimp, too. We're using Assimp's version of fast_atof
-// so we need stdint.h. But no PCH.
-
-
 #include "irrXML.h"
 #include "irrString.h"
 #include "irrArray.h"
-//#include <assimp/fast_atof.h>
+#include "fast_atof.h"
 #include "CXMLReaderImpl.h"
 
 namespace irr
@@ -18,7 +14,7 @@ namespace io
 {
 
 //! Implementation of the file read callback for ordinary files
-class IRRXML_API CFileReadCallBack : public IFileReadCallBack
+class CFileReadCallBack : public IFileReadCallBack
 {
 public:
 

contrib/irrXML/irrXML.h

@@ -7,12 +7,6 @@
 
 #include <stdio.h>
 
-#ifdef _WIN32
-#   define IRRXML_API __declspec(dllexport)
-#else
-#   define IRRXML_API __attribute__ ((visibility("default")))
-#endif // _WIN32
-
 /** \mainpage irrXML 1.2 API documentation
  <div align="center"><img src="logobig.png" ></div>
 
@@ -178,7 +172,7 @@ namespace io
 		ETF_UTF32_BE,
 
 		//! UTF-32 format, little endian
-		ETF_UTF32_LE
+		ETF_UTF32_LE,
 	};
 
 
@@ -215,7 +209,7 @@ namespace io
 	two methods to read your data and give a pointer to an instance of
 	your implementation when calling createIrrXMLReader(), 
 	createIrrXMLReaderUTF16() or createIrrXMLReaderUTF32() */
-	class IRRXML_API IFileReadCallBack
+	class IFileReadCallBack
 	{
 	public:
 
@@ -415,7 +409,7 @@ namespace io
 	\return Returns a pointer to the created xml parser. This pointer should be 
 	deleted using 'delete' after no longer needed. Returns 0 if an error occured
 	and the file could not be opened. */
-    IRRXML_API IrrXMLReader* createIrrXMLReader(const char* filename);
+	IrrXMLReader* createIrrXMLReader(const char* filename);
 
 	//! Creates an instance of an UFT-8 or ASCII character xml parser.
 	/** This means that all character data will be returned in 8 bit ASCII or UTF-8. The file to read can 
@@ -427,7 +421,7 @@ namespace io
 	\return Returns a pointer to the created xml parser. This pointer should be 
 	deleted using 'delete' after no longer needed. Returns 0 if an error occured
 	and the file could not be opened. */
-    IRRXML_API IrrXMLReader* createIrrXMLReader(FILE* file);
+	IrrXMLReader* createIrrXMLReader(FILE* file);
 
 	//! Creates an instance of an UFT-8 or ASCII character xml parser. 
 	/** This means that all character data will be returned in 8 bit ASCII or UTF-8. The file to read can 
@@ -440,7 +434,7 @@ namespace io
 	 \return Returns a pointer to the created xml parser. This pointer should be 
 	 deleted using 'delete' after no longer needed. Returns 0 if an error occured
 	 and the file could not be opened. */
-    IRRXML_API IrrXMLReader* createIrrXMLReader(IFileReadCallBack* callback);
+	IrrXMLReader* createIrrXMLReader(IFileReadCallBack* callback);
 
 	//! Creates an instance of an UFT-16 xml parser. 
 	/** This means that
@@ -452,7 +446,7 @@ namespace io
 	\return Returns a pointer to the created xml parser. This pointer should be 
 	deleted using 'delete' after no longer needed. Returns 0 if an error occured
 	and the file could not be opened. */
-    IRRXML_API IrrXMLReaderUTF16* createIrrXMLReaderUTF16(const char* filename);
+	IrrXMLReaderUTF16* createIrrXMLReaderUTF16(const char* filename);
 
 	//! Creates an instance of an UFT-16 xml parser. 
 	/** This means that all character data will be returned in UTF-16. The file to read can 
@@ -464,7 +458,7 @@ namespace io
 	\return Returns a pointer to the created xml parser. This pointer should be 
 	deleted using 'delete' after no longer needed. Returns 0 if an error occured
 	and the file could not be opened. */
-    IRRXML_API IrrXMLReaderUTF16* createIrrXMLReaderUTF16(FILE* file);
+	IrrXMLReaderUTF16* createIrrXMLReaderUTF16(FILE* file);
 
 	//! Creates an instance of an UFT-16 xml parser. 
 	/** This means that all character data will be returned in UTF-16. The file to read can 
@@ -477,7 +471,7 @@ namespace io
 	\return Returns a pointer to the created xml parser. This pointer should be 
 	deleted using 'delete' after no longer needed. Returns 0 if an error occured
 	and the file could not be opened. */
-    IRRXML_API IrrXMLReaderUTF16* createIrrXMLReaderUTF16(IFileReadCallBack* callback);
+	IrrXMLReaderUTF16* createIrrXMLReaderUTF16(IFileReadCallBack* callback);
 
 
 	//! Creates an instance of an UFT-32 xml parser. 
@@ -489,7 +483,7 @@ namespace io
 	\return Returns a pointer to the created xml parser. This pointer should be 
 	deleted using 'delete' after no longer needed. Returns 0 if an error occured
 	and the file could not be opened. */
-    IRRXML_API IrrXMLReaderUTF32* createIrrXMLReaderUTF32(const char* filename);
+	IrrXMLReaderUTF32* createIrrXMLReaderUTF32(const char* filename);
 
 	//! Creates an instance of an UFT-32 xml parser. 
 	/** This means that all character data will be returned in UTF-32. The file to read can 
@@ -501,7 +495,7 @@ namespace io
 	\return Returns a pointer to the created xml parser. This pointer should be 
 	deleted using 'delete' after no longer needed. Returns 0 if an error occured
 	and the file could not be opened. */
-    IRRXML_API IrrXMLReaderUTF32* createIrrXMLReaderUTF32(FILE* file);
+	IrrXMLReaderUTF32* createIrrXMLReaderUTF32(FILE* file);
 
 	//! Creates an instance of an UFT-32 xml parser. 
 	/** This means that
@@ -515,7 +509,7 @@ namespace io
 	\return Returns a pointer to the created xml parser. This pointer should be 
 	deleted using 'delete' after no longer needed. Returns 0 if an error occured
 	and the file could not be opened. */
-    IRRXML_API IrrXMLReaderUTF32* createIrrXMLReaderUTF32(IFileReadCallBack* callback);
+	IrrXMLReaderUTF32* createIrrXMLReaderUTF32(IFileReadCallBack* callback);
 	
 
 	/*! \file irrxml.h

include/assimp/MathFunctions.h

@@ -55,36 +55,51 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 namespace Assimp {
 namespace Math {
 
-// TODO: use binary GCD for unsigned integers ....
-template < typename IntegerType >
-inline
-IntegerType gcd( IntegerType a, IntegerType b ) {
+/// @brief  Will return the greatest common divisor.
+/// @param  a   [in] Value a.
+/// @param  b   [in] Value b.
+/// @return The greatest common divisor.
+template <typename IntegerType>
+inline IntegerType gcd( IntegerType a, IntegerType b ) {
 	const IntegerType zero = (IntegerType)0;
 	while ( true ) {
-		if ( a == zero )
+		if ( a == zero ) {
 			return b;
+        }
 		b %= a;
 
-		if ( b == zero )
+		if ( b == zero ) {
 			return a;
+        }
 		a %= b;
 	}
 }
 
+/// @brief  Will return the greatest common divisor.
+/// @param  a   [in] Value a.
+/// @param  b   [in] Value b.
+/// @return The greatest common divisor.
 template < typename IntegerType >
-inline
-IntegerType lcm( IntegerType a, IntegerType b ) {
+inline IntegerType lcm( IntegerType a, IntegerType b ) {
 	const IntegerType t = gcd (a,b);
-	if (!t)
+	if (!t) {
         return t;
+    }
 	return a / t * b;
 }
-
+/// @brief  Will return the smallest epsilon-value for the requested type. 
+/// @return The numercical limit epsilon depending on its type.
 template<class T>
-inline
-T getEpsilon() {
+inline T getEpsilon() {
     return std::numeric_limits<T>::epsilon();
 }
 
+/// @brief  Will return the constant PI for the requested type.
+/// @return Pi
+template<class T>
+inline T PI() {
+    return static_cast<T>(3.14159265358979323846);
 }
-}
+
+} // namespace Math
+} // namespace Assimp

include/assimp/StreamReader.h

@@ -5,8 +5,6 @@ Open Asset Import Library (assimp)
 
 Copyright (c) 2006-2020, assimp team
 
-
-
 All rights reserved.
 
 Redistribution and use of this software in source and binary forms,
@@ -49,13 +47,13 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #define AI_STREAMREADER_H_INCLUDED
 
 #ifdef __GNUC__
-#   pragma GCC system_header
+#pragma GCC system_header
 #endif
 
-#include <assimp/IOStream.hpp>
-#include <assimp/Defines.h>
 #include <assimp/ByteSwapper.h>
+#include <assimp/Defines.h>
 #include <assimp/Exceptional.h>
+#include <assimp/IOStream.hpp>
 
 #include <memory>
 
@@ -74,10 +72,8 @@ namespace Assimp {
 template <bool SwapEndianess = false, bool RuntimeSwitch = false>
 class StreamReader {
 public:
-    // FIXME: use these data types throughout the whole library,
-    // then change them to 64 bit values :-)
-    using diff = int;
-    using pos  = unsigned int;
+    using diff = size_t;
+    using pos = size_t;
 
     // ---------------------------------------------------------------------
     /** Construction from a given stream with a well-defined endianness.
@@ -91,40 +87,45 @@ public:
      *    stream is in little endian byte order. Otherwise the
      *    endianness information is contained in the @c SwapEndianess
      *    template parameter and this parameter is meaningless.  */
-    StreamReader(std::shared_ptr<IOStream> stream, bool le = false)
-        : stream(stream)
-        , le(le)
-    {
+    StreamReader(std::shared_ptr<IOStream> stream, bool le = false) :
+            mStream(stream),
+            mBuffer(nullptr),
+            mCurrent(nullptr),
+            mEnd(nullptr),
+            mLimit(nullptr),
+            mLe(le) {
         ai_assert(stream);
         InternBegin();
     }
 
     // ---------------------------------------------------------------------
-    StreamReader(IOStream* stream, bool le = false)
-        : stream(std::shared_ptr<IOStream>(stream))
-        , le(le)
-    {
-        ai_assert(stream);
+    StreamReader(IOStream *stream, bool le = false) :
+            mStream(std::shared_ptr<IOStream>(stream)),
+            mBuffer(nullptr),
+            mCurrent(nullptr),
+            mEnd(nullptr),
+            mLimit(nullptr),
+            mLe(le) {
+        ai_assert(nullptr != stream);
         InternBegin();
     }
 
     // ---------------------------------------------------------------------
     ~StreamReader() {
-        delete[] buffer;
+        delete[] mBuffer;
     }
 
     // deprecated, use overloaded operator>> instead
 
     // ---------------------------------------------------------------------
-    /** Read a float from the stream  */
-    float GetF4()
-    {
+    /// Read a float from the stream.
+    float GetF4() {
         return Get<float>();
     }
 
     // ---------------------------------------------------------------------
-    /** Read a double from the stream  */
-    double GetF8()  {
+    /// Read a double from the stream.
+    double GetF8() {
         return Get<double>();
     }
 
@@ -136,7 +137,7 @@ public:
 
     // ---------------------------------------------------------------------
     /** Read a signed 8 bit integer from the stream */
-    int8_t GetI1()  {
+    int8_t GetI1() {
         return Get<int8_t>();
     }
 
@@ -154,55 +155,55 @@ public:
 
     // ---------------------------------------------------------------------
     /** Read a unsigned 16 bit integer from the stream */
-    uint16_t GetU2()    {
+    uint16_t GetU2() {
         return Get<uint16_t>();
     }
 
     // ---------------------------------------------------------------------
-    /** Read a unsigned 8 bit integer from the stream */
+    /// Read a unsigned 8 bit integer from the stream
     uint8_t GetU1() {
         return Get<uint8_t>();
     }
 
     // ---------------------------------------------------------------------
-    /** Read an unsigned 32 bit integer from the stream */
-    uint32_t GetU4()    {
+    /// Read an unsigned 32 bit integer from the stream
+    uint32_t GetU4() {
         return Get<uint32_t>();
     }
 
     // ---------------------------------------------------------------------
-    /** Read a unsigned 64 bit integer from the stream */
-    uint64_t GetU8()    {
+    /// Read a unsigned 64 bit integer from the stream
+    uint64_t GetU8() {
         return Get<uint64_t>();
     }
 
     // ---------------------------------------------------------------------
-    /** Get the remaining stream size (to the end of the stream) */
-    unsigned int GetRemainingSize() const {
-        return (unsigned int)(end - current);
+    /// Get the remaining stream size (to the end of the stream)
+    size_t GetRemainingSize() const {
+        return (unsigned int)(mEnd - mCurrent);
     }
 
     // ---------------------------------------------------------------------
     /** Get the remaining stream size (to the current read limit). The
      *  return value is the remaining size of the stream if no custom
      *  read limit has been set. */
-    unsigned int GetRemainingSizeToLimit() const {
-        return (unsigned int)(limit - current);
+    size_t GetRemainingSizeToLimit() const {
+        return (unsigned int)(mLimit - mCurrent);
     }
 
     // ---------------------------------------------------------------------
     /** Increase the file pointer (relative seeking)  */
-    void IncPtr(intptr_t plus)    {
-        current += plus;
-        if (current > limit) {
+    void IncPtr(intptr_t plus) {
+        mCurrent += plus;
+        if (mCurrent > mLimit) {
             throw DeadlyImportError("End of file or read limit was reached");
         }
     }
 
     // ---------------------------------------------------------------------
     /** Get the current file pointer */
-    int8_t* GetPtr() const  {
-        return current;
+    int8_t *GetPtr() const {
+        return mCurrent;
     }
 
     // ---------------------------------------------------------------------
@@ -211,9 +212,9 @@ public:
      *  large chunks of data at once.
      *  @param p The new pointer, which is validated against the size
      *    limit and buffer boundaries. */
-    void SetPtr(int8_t* p)  {
-        current = p;
-        if (current > limit || current < buffer) {
+    void SetPtr(int8_t *p) {
+        mCurrent = p;
+        if (mCurrent > mLimit || mCurrent < mBuffer) {
             throw DeadlyImportError("End of file or read limit was reached");
         }
     }
@@ -222,21 +223,20 @@ public:
     /** Copy n bytes to an external buffer
      *  @param out Destination for copying
      *  @param bytes Number of bytes to copy */
-    void CopyAndAdvance(void* out, size_t bytes)    {
-        int8_t* ur = GetPtr();
-        SetPtr(ur+bytes); // fire exception if eof
+    void CopyAndAdvance(void *out, size_t bytes) {
+        int8_t *ur = GetPtr();
+        SetPtr(ur + bytes); // fire exception if eof
 
-        ::memcpy(out,ur,bytes);
+        ::memcpy(out, ur, bytes);
     }
 
-    // ---------------------------------------------------------------------
-    /** Get the current offset from the beginning of the file */
-    int GetCurrentPos() const   {
-        return (unsigned int)(current - buffer);
+    /// @brief Get the current offset from the beginning of the file
+    int GetCurrentPos() const {
+        return (unsigned int)(mCurrent - mBuffer);
     }
 
     void SetCurrentPos(size_t pos) {
-        SetPtr(buffer + pos);
+        SetPtr(mBuffer + pos);
     }
 
     // ---------------------------------------------------------------------
@@ -246,15 +246,15 @@ public:
      *    the beginning of the file. Specifying UINT_MAX
      *    resets the limit to the original end of the stream.
      *  Returns the previously set limit. */
-    unsigned int SetReadLimit(unsigned int _limit)  {
+    unsigned int SetReadLimit(unsigned int _limit) {
         unsigned int prev = GetReadLimit();
         if (UINT_MAX == _limit) {
-            limit = end;
+            mLimit = mEnd;
             return prev;
         }
 
-        limit = buffer + _limit;
-        if (limit > end) {
+        mLimit = mBuffer + _limit;
+        if (mLimit > mEnd) {
             throw DeadlyImportError("StreamReader: Invalid read limit");
         }
         return prev;
@@ -263,21 +263,21 @@ public:
     // ---------------------------------------------------------------------
     /** Get the current read limit in bytes. Reading over this limit
      *  accidentally raises an exception.  */
-    unsigned int GetReadLimit() const    {
-        return (unsigned int)(limit - buffer);
+    unsigned int GetReadLimit() const {
+        return (unsigned int)(mLimit - mBuffer);
     }
 
     // ---------------------------------------------------------------------
     /** Skip to the read limit in bytes. Reading over this limit
      *  accidentally raises an exception. */
-    void SkipToReadLimit()  {
-        current = limit;
+    void SkipToReadLimit() {
+        mCurrent = mLimit;
     }
 
     // ---------------------------------------------------------------------
     /** overload operator>> and allow chaining of >> ops. */
     template <typename T>
-    StreamReader& operator >> (T& f) {
+    StreamReader &operator>>(T &f) {
         f = Get<T>();
         return *this;
     }
@@ -286,14 +286,14 @@ public:
     /** Generic read method. ByteSwap::Swap(T*) *must* be defined */
     template <typename T>
     T Get() {
-        if ( current + sizeof(T) > limit) {
+        if (mCurrent + sizeof(T) > mLimit) {
             throw DeadlyImportError("End of file or stream limit was reached");
         }
 
         T f;
-        ::memcpy (&f, current, sizeof(T));
-        Intern::Getter<SwapEndianess,T,RuntimeSwitch>() (&f,le);
-        current += sizeof(T);
+        ::memcpy(&f, mCurrent, sizeof(T));
+        Intern::Getter<SwapEndianess, T, RuntimeSwitch>()(&f, mLe);
+        mCurrent += sizeof(T);
 
         return f;
     }
@@ -301,46 +301,44 @@ public:
 private:
     // ---------------------------------------------------------------------
     void InternBegin() {
-        if (!stream) {
-            // in case someone wonders: StreamReader is frequently invoked with
-            // no prior validation whether the input stream is valid. Since
-            // no one bothers changing the error message, this message here
-            // is passed down to the caller and 'unable to open file'
-            // simply describes best what happened.
+        if (nullptr == mStream) {
             throw DeadlyImportError("StreamReader: Unable to open file");
         }
 
-        const size_t s = stream->FileSize() - stream->Tell();
-        if (!s) {
+        const size_t filesize = mStream->FileSize() - mStream->Tell();
+        if (0 == filesize) {
             throw DeadlyImportError("StreamReader: File is empty or EOF is already reached");
         }
 
-        current = buffer = new int8_t[s];
-        const size_t read = stream->Read(current,1,s);
+        mCurrent = mBuffer = new int8_t[filesize];
+        const size_t read = mStream->Read(mCurrent, 1, filesize);
         // (read < s) can only happen if the stream was opened in text mode, in which case FileSize() is not reliable
-        ai_assert(read <= s);
-        end = limit = &buffer[read-1] + 1;
+        ai_assert(read <= filesize);
+        mEnd = mLimit = &mBuffer[read - 1] + 1;
     }
 
 private:
-    std::shared_ptr<IOStream> stream;
-    int8_t *buffer, *current, *end, *limit;
-    bool le;
+    std::shared_ptr<IOStream> mStream;
+    int8_t *mBuffer;
+    int8_t *mCurrent;
+    int8_t *mEnd;
+    int8_t *mLimit;
+    bool mLe;
 };
 
 // --------------------------------------------------------------------------------------------
 // `static` StreamReaders. Their byte order is fixed and they might be a little bit faster.
 #ifdef AI_BUILD_BIG_ENDIAN
-    typedef StreamReader<true>  StreamReaderLE;
-    typedef StreamReader<false> StreamReaderBE;
+typedef StreamReader<true> StreamReaderLE;
+typedef StreamReader<false> StreamReaderBE;
 #else
-    typedef StreamReader<true>  StreamReaderBE;
-    typedef StreamReader<false> StreamReaderLE;
+typedef StreamReader<true> StreamReaderBE;
+typedef StreamReader<false> StreamReaderLE;
 #endif
 
 // `dynamic` StreamReader. The byte order of the input data is specified in the
 // c'tor. This involves runtime branching and might be a little bit slower.
-typedef StreamReader<true,true> StreamReaderAny;
+typedef StreamReader<true, true> StreamReaderAny;
 
 } // end namespace Assimp
 

include/assimp/StringUtils.h

@@ -145,4 +145,21 @@ std::string DecimalToHexa( T toConvert ) {
     return result;
 }
 
+///	@brief	translate RGBA to String
+///	@param	r   aiColor.r
+///	@param	g   aiColor.g
+///	@param	b   aiColor.b
+///	@param	a   aiColor.a
+///	@param	with_head   # 
+///	@return	The hexadecimal string, is empty in case of an error.
+AI_FORCE_INLINE std::string Rgba2Hex(int r, int g, int b, int a, bool with_head) {
+	std::stringstream ss;
+	if (with_head) {
+		ss << "#";
+    }
+	ss << std::hex << (r << 24 | g << 16 | b << 8 | a);
+	
+    return ss.str();
+}
+
 #endif // INCLUDED_AI_STRINGUTILS_H

include/assimp/metadata.h

@@ -5,8 +5,6 @@ Open Asset Import Library (assimp)
 
 Copyright (c) 2006-2020, assimp team
 
-
-
 All rights reserved.
 
 Redistribution and use of this software in source and binary forms,
@@ -49,29 +47,29 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #define AI_METADATA_H_INC
 
 #ifdef __GNUC__
-#   pragma GCC system_header
+#pragma GCC system_header
 #endif
 
 #if defined(_MSC_VER) && (_MSC_VER <= 1500)
-#  include "Compiler/pstdint.h"
+#include "Compiler/pstdint.h"
 #else
-#  include <stdint.h>
+#include <stdint.h>
 #endif
 
 // -------------------------------------------------------------------------------
 /**
   * Enum used to distinguish data types
   */
- // -------------------------------------------------------------------------------
+// -------------------------------------------------------------------------------
 typedef enum aiMetadataType {
-    AI_BOOL       = 0,
-    AI_INT32      = 1,
-    AI_UINT64     = 2,
-    AI_FLOAT      = 3,
-    AI_DOUBLE     = 4,
-    AI_AISTRING   = 5,
+    AI_BOOL = 0,
+    AI_INT32 = 1,
+    AI_UINT64 = 2,
+    AI_FLOAT = 3,
+    AI_DOUBLE = 4,
+    AI_AISTRING = 5,
     AI_AIVECTOR3D = 6,
-    AI_META_MAX   = 7,
+    AI_META_MAX = 7,
 
 #ifndef SWIG
     FORCE_32BIT = INT_MAX
@@ -84,10 +82,10 @@ typedef enum aiMetadataType {
   *
   * The type field uniquely identifies the underlying type of the data field
   */
- // -------------------------------------------------------------------------------
+// -------------------------------------------------------------------------------
 struct aiMetadataEntry {
     aiMetadataType mType;
-    void* mData;
+    void *mData;
 };
 
 #ifdef __cplusplus
@@ -98,15 +96,29 @@ struct aiMetadataEntry {
 /**
   * Helper functions to get the aiType enum entry for a type
   */
- // -------------------------------------------------------------------------------
+// -------------------------------------------------------------------------------
 
-inline aiMetadataType GetAiType( bool )       { return AI_BOOL; }
-inline aiMetadataType GetAiType( int32_t )    { return AI_INT32; }
-inline aiMetadataType GetAiType( uint64_t )   { return AI_UINT64; }
-inline aiMetadataType GetAiType( float )      { return AI_FLOAT; }
-inline aiMetadataType GetAiType( double )     { return AI_DOUBLE; }
-inline aiMetadataType GetAiType( const aiString & )   { return AI_AISTRING; }
-inline aiMetadataType GetAiType( const aiVector3D & ) { return AI_AIVECTOR3D; }
+inline aiMetadataType GetAiType(bool) {
+    return AI_BOOL;
+}
+inline aiMetadataType GetAiType(int32_t) {
+    return AI_INT32;
+}
+inline aiMetadataType GetAiType(uint64_t) {
+    return AI_UINT64;
+}
+inline aiMetadataType GetAiType(float) {
+    return AI_FLOAT;
+}
+inline aiMetadataType GetAiType(double) {
+    return AI_DOUBLE;
+}
+inline aiMetadataType GetAiType(const aiString &) {
+    return AI_AISTRING;
+}
+inline aiMetadataType GetAiType(const aiVector3D &) {
+    return AI_AIVECTOR3D;
+}
 
 #endif // __cplusplus
 
@@ -116,17 +128,17 @@ inline aiMetadataType GetAiType( const aiVector3D & ) { return AI_AIVECTOR3D; }
   *
   * Metadata is a key-value store using string keys and values.
   */
- // -------------------------------------------------------------------------------
+// -------------------------------------------------------------------------------
 struct aiMetadata {
     /** Length of the mKeys and mValues arrays, respectively */
     unsigned int mNumProperties;
 
     /** Arrays of keys, may not be NULL. Entries in this array may not be NULL as well. */
-    C_STRUCT aiString* mKeys;
+    C_STRUCT aiString *mKeys;
 
     /** Arrays of values, may not be NULL. Entries in this array may be NULL if the
       * corresponding property key has no assigned value. */
-    C_STRUCT aiMetadataEntry* mValues;
+    C_STRUCT aiMetadataEntry *mValues;
 
 #ifdef __cplusplus
 
@@ -134,71 +146,62 @@ struct aiMetadata {
      *  @brief  The default constructor, set all members to zero by default.
      */
     aiMetadata() AI_NO_EXCEPT
-    : mNumProperties(0)
-    , mKeys(nullptr)
-    , mValues(nullptr) {
+            : mNumProperties(0),
+              mKeys(nullptr),
+              mValues(nullptr) {
         // empty
     }
 
-    aiMetadata( const aiMetadata &rhs )
-    : mNumProperties( rhs.mNumProperties )
-    , mKeys( nullptr )
-    , mValues( nullptr ) {
-        mKeys = new aiString[ mNumProperties ];
-        for ( size_t i = 0; i < static_cast<size_t>( mNumProperties ); ++i ) {
-            mKeys[ i ] = rhs.mKeys[ i ];
+    aiMetadata(const aiMetadata &rhs) :
+            mNumProperties(rhs.mNumProperties), mKeys(nullptr), mValues(nullptr) {
+        mKeys = new aiString[mNumProperties];
+        for (size_t i = 0; i < static_cast<size_t>(mNumProperties); ++i) {
+            mKeys[i] = rhs.mKeys[i];
         }
-        mValues = new aiMetadataEntry[ mNumProperties ];
-        for ( size_t i = 0; i < static_cast<size_t>(mNumProperties); ++i ) {
-            mValues[ i ].mType = rhs.mValues[ i ].mType;
-            switch ( rhs.mValues[ i ].mType ) {
+        mValues = new aiMetadataEntry[mNumProperties];
+        for (size_t i = 0; i < static_cast<size_t>(mNumProperties); ++i) {
+            mValues[i].mType = rhs.mValues[i].mType;
+            switch (rhs.mValues[i].mType) {
             case AI_BOOL:
-                mValues[ i ].mData = new bool;
-                ::memcpy( mValues[ i ].mData, rhs.mValues[ i ].mData, sizeof(bool) );
+                mValues[i].mData = new bool;
+                ::memcpy(mValues[i].mData, rhs.mValues[i].mData, sizeof(bool));
                 break;
             case AI_INT32: {
                 int32_t v;
-                ::memcpy( &v, rhs.mValues[ i ].mData, sizeof( int32_t ) );
-                mValues[ i ].mData = new int32_t( v );
-                }
-                break;
+                ::memcpy(&v, rhs.mValues[i].mData, sizeof(int32_t));
+                mValues[i].mData = new int32_t(v);
+            } break;
             case AI_UINT64: {
-                    uint64_t v;
-                    ::memcpy( &v, rhs.mValues[ i ].mData, sizeof( uint64_t ) );
-                    mValues[ i ].mData = new  uint64_t( v );
-                }
-                break;
+                uint64_t v;
+                ::memcpy(&v, rhs.mValues[i].mData, sizeof(uint64_t));
+                mValues[i].mData = new uint64_t(v);
+            } break;
             case AI_FLOAT: {
-                    float v;
-                    ::memcpy( &v, rhs.mValues[ i ].mData, sizeof( float ) );
-                    mValues[ i ].mData = new float( v );
-                }
-                break;
+                float v;
+                ::memcpy(&v, rhs.mValues[i].mData, sizeof(float));
+                mValues[i].mData = new float(v);
+            } break;
             case AI_DOUBLE: {
-                    double v;
-                    ::memcpy( &v, rhs.mValues[ i ].mData, sizeof( double ) );
-                    mValues[ i ].mData = new double( v );
-                }
-                break;
+                double v;
+                ::memcpy(&v, rhs.mValues[i].mData, sizeof(double));
+                mValues[i].mData = new double(v);
+            } break;
             case AI_AISTRING: {
-                    aiString v;
-                    rhs.Get<aiString>( mKeys[ i ], v );
-                    mValues[ i ].mData = new aiString( v );
-                }
-                break;
+                aiString v;
+                rhs.Get<aiString>(mKeys[i], v);
+                mValues[i].mData = new aiString(v);
+            } break;
             case AI_AIVECTOR3D: {
-                    aiVector3D v;
-                    rhs.Get<aiVector3D>( mKeys[ i ], v );
-                    mValues[ i ].mData = new aiVector3D( v );
-                }
-                break;
+                aiVector3D v;
+                rhs.Get<aiVector3D>(mKeys[i], v);
+                mValues[i].mData = new aiVector3D(v);
+            } break;
 #ifndef SWIG
             case FORCE_32BIT:
 #endif
             default:
                 break;
             }
-
         }
     }
 
@@ -206,33 +209,33 @@ struct aiMetadata {
      *  @brief The destructor.
      */
     ~aiMetadata() {
-        delete [] mKeys;
+        delete[] mKeys;
         mKeys = nullptr;
         if (mValues) {
             // Delete each metadata entry
-            for (unsigned i=0; i<mNumProperties; ++i) {
-                void* data = mValues[i].mData;
+            for (unsigned i = 0; i < mNumProperties; ++i) {
+                void *data = mValues[i].mData;
                 switch (mValues[i].mType) {
                 case AI_BOOL:
-                    delete static_cast< bool* >( data );
+                    delete static_cast<bool *>(data);
                     break;
                 case AI_INT32:
-                    delete static_cast< int32_t* >( data );
+                    delete static_cast<int32_t *>(data);
                     break;
                 case AI_UINT64:
-                    delete static_cast< uint64_t* >( data );
+                    delete static_cast<uint64_t *>(data);
                     break;
                 case AI_FLOAT:
-                    delete static_cast< float* >( data );
+                    delete static_cast<float *>(data);
                     break;
                 case AI_DOUBLE:
-                    delete static_cast< double* >( data );
+                    delete static_cast<double *>(data);
                     break;
                 case AI_AISTRING:
-                    delete static_cast< aiString* >( data );
+                    delete static_cast<aiString *>(data);
                     break;
                 case AI_AIVECTOR3D:
-                    delete static_cast< aiVector3D* >( data );
+                    delete static_cast<aiVector3D *>(data);
                     break;
 #ifndef SWIG
                 case FORCE_32BIT:
@@ -243,7 +246,7 @@ struct aiMetadata {
             }
 
             // Delete the metadata array
-            delete [] mValues;
+            delete[] mValues;
             mValues = nullptr;
         }
     }
@@ -252,16 +255,15 @@ struct aiMetadata {
      *  @brief Allocates property fields + keys.
      *  @param  numProperties   Number of requested properties.
      */
-    static inline
-    aiMetadata *Alloc( unsigned int numProperties ) {
-        if ( 0 == numProperties ) {
+    static inline aiMetadata *Alloc(unsigned int numProperties) {
+        if (0 == numProperties) {
             return nullptr;
         }
 
         aiMetadata *data = new aiMetadata;
         data->mNumProperties = numProperties;
-        data->mKeys = new aiString[ data->mNumProperties ]();
-        data->mValues = new aiMetadataEntry[ data->mNumProperties ]();
+        data->mKeys = new aiString[data->mNumProperties]();
+        data->mValues = new aiMetadataEntry[data->mNumProperties]();
 
         return data;
     }
@@ -269,44 +271,40 @@ struct aiMetadata {
     /**
      *  @brief Deallocates property fields + keys.
      */
-    static inline
-    void Dealloc( aiMetadata *metadata ) {
+    static inline void Dealloc(aiMetadata *metadata) {
         delete metadata;
     }
 
-	template<typename T>
-	inline
-    void Add(const std::string& key, const T& value) {
-		aiString* new_keys = new aiString[mNumProperties + 1];
-		aiMetadataEntry* new_values = new aiMetadataEntry[mNumProperties + 1];
+    template <typename T>
+    inline void Add(const std::string &key, const T &value) {
+        aiString *new_keys = new aiString[mNumProperties + 1];
+        aiMetadataEntry *new_values = new aiMetadataEntry[mNumProperties + 1];
 
-		for(unsigned int i = 0; i < mNumProperties; ++i)
-		{
-			new_keys[i] = mKeys[i];
-			new_values[i] = mValues[i];
-		}
+        for (unsigned int i = 0; i < mNumProperties; ++i) {
+            new_keys[i] = mKeys[i];
+            new_values[i] = mValues[i];
+        }
 
-		delete[] mKeys;
-		delete[] mValues;
+        delete[] mKeys;
+        delete[] mValues;
 
-		mKeys = new_keys;
-		mValues = new_values;
+        mKeys = new_keys;
+        mValues = new_values;
 
-		mNumProperties++;
+        mNumProperties++;
 
-		Set(mNumProperties - 1, key, value);
-	}
+        Set(mNumProperties - 1, key, value);
+    }
 
-    template<typename T>
-    inline 
-    bool Set( unsigned index, const std::string& key, const T& value ) {
+    template <typename T>
+    inline bool Set(unsigned index, const std::string &key, const T &value) {
         // In range assertion
-        if ( index >= mNumProperties ) {
+        if (index >= mNumProperties) {
             return false;
         }
 
         // Ensure that we have a valid key.
-        if ( key.empty() ) {
+        if (key.empty()) {
             return false;
         }
 
@@ -321,73 +319,86 @@ struct aiMetadata {
         return true;
     }
 
-    template<typename T>
-    inline 
-    bool Get( unsigned index, T& value ) const {
+    template <typename T>
+    inline bool Set( const std::string &key, const T &value ) {
+        if (key.empty()) {
+            return false;
+        }
+
+        bool result = false;
+        for (unsigned int i = 0; i < mNumProperties; ++i) {
+            if (key == mKeys[i].C_Str()) {
+                Set(i, key, value);
+                result = true;
+                break;
+            }
+        }
+
+        return result;
+    }
+
+    template <typename T>
+    inline bool Get(unsigned index, T &value) const {
         // In range assertion
-        if ( index >= mNumProperties ) {
+        if (index >= mNumProperties) {
             return false;
         }
 
         // Return false if the output data type does
         // not match the found value's data type
-        if ( GetAiType( value ) != mValues[ index ].mType ) {
+        if (GetAiType(value) != mValues[index].mType) {
             return false;
         }
 
         // Otherwise, output the found value and
         // return true
-        value = *static_cast<T*>(mValues[index].mData);
+        value = *static_cast<T *>(mValues[index].mData);
 
         return true;
     }
 
-    template<typename T>
-    inline 
-    bool Get( const aiString& key, T& value ) const {
+    template <typename T>
+    inline bool Get(const aiString &key, T &value) const {
         // Search for the given key
-        for ( unsigned int i = 0; i < mNumProperties; ++i ) {
-            if ( mKeys[ i ] == key ) {
-                return Get( i, value );
+        for (unsigned int i = 0; i < mNumProperties; ++i) {
+            if (mKeys[i] == key) {
+                return Get(i, value);
             }
         }
         return false;
     }
 
-    template<typename T>
-    inline
-    bool Get( const std::string& key, T& value ) const {
+    template <typename T>
+    inline bool Get(const std::string &key, T &value) const {
         return Get(aiString(key), value);
     }
 
-	/// Return metadata entry for analyzing it by user.
-	/// \param [in] pIndex - index of the entry.
-	/// \param [out] pKey - pointer to the key value.
-	/// \param [out] pEntry - pointer to the entry: type and value.
-	/// \return false - if pIndex is out of range, else - true.
-	inline
-    bool Get(size_t index, const aiString*& key, const aiMetadataEntry*& entry) const {
-        if ( index >= mNumProperties ) {
+    /// Return metadata entry for analyzing it by user.
+    /// \param [in] pIndex - index of the entry.
+    /// \param [out] pKey - pointer to the key value.
+    /// \param [out] pEntry - pointer to the entry: type and value.
+    /// \return false - if pIndex is out of range, else - true.
+    inline bool Get(size_t index, const aiString *&key, const aiMetadataEntry *&entry) const {
+        if (index >= mNumProperties) {
             return false;
         }
 
-		key = &mKeys[index];
-		entry = &mValues[index];
+        key = &mKeys[index];
+        entry = &mValues[index];
 
-		return true;
-	}
+        return true;
+    }
 
     /// Check whether there is a metadata entry for the given key.
     /// \param [in] Key - the key value value to check for.
-    inline
-    bool HasKey(const char* key) {
-        if ( nullptr == key ) {
+    inline bool HasKey(const char *key) {
+        if (nullptr == key) {
             return false;
         }
-        
+
         // Search for the given key
         for (unsigned int i = 0; i < mNumProperties; ++i) {
-            if ( 0 == strncmp(mKeys[i].C_Str(), key, mKeys[i].length ) ) {
+            if (0 == strncmp(mKeys[i].C_Str(), key, mKeys[i].length)) {
                 return true;
             }
         }
@@ -395,7 +406,6 @@ struct aiMetadata {
     }
 
 #endif // __cplusplus
-
 };
 
 #endif // AI_METADATA_H_INC

samples/SimpleOpenGL/CMakeLists.txt

@@ -1,3 +1,5 @@
+SET(SAMPLE_PROJECT_NAME assimp_simpleogl)
+
 FIND_PACKAGE(OpenGL)
 FIND_PACKAGE(GLUT)
 IF ( MSVC )
@@ -16,6 +18,10 @@ IF ( NOT GLUT_FOUND )
   ENDIF ()
 ENDIF ()
 
+# Used for usage and error messages in the program.
+ADD_COMPILE_DEFINITIONS(ASSIMP_VERSION="${ASSIMP_VERSION}")
+ADD_COMPILE_DEFINITIONS(PROJECT_NAME="${SAMPLE_PROJECT_NAME}")
+
 if ( MSVC )
   ADD_DEFINITIONS( -D_SCL_SECURE_NO_WARNINGS )
   ADD_DEFINITIONS( -D_CRT_SECURE_NO_WARNINGS )
@@ -34,17 +40,17 @@ LINK_DIRECTORIES(
   ${Assimp_BINARY_DIR}/lib
 )
 
-ADD_EXECUTABLE( assimp_simpleogl
+ADD_EXECUTABLE( ${SAMPLE_PROJECT_NAME}
   Sample_SimpleOpenGL.c
 )
 
-SET_PROPERTY(TARGET assimp_simpleogl PROPERTY DEBUG_POSTFIX ${CMAKE_DEBUG_POSTFIX})
+SET_PROPERTY(TARGET ${SAMPLE_PROJECT_NAME} PROPERTY DEBUG_POSTFIX ${CMAKE_DEBUG_POSTFIX})
 
-TARGET_LINK_LIBRARIES( assimp_simpleogl assimp ${OPENGL_LIBRARIES} ${GLUT_LIBRARIES} ${M_LIB} )
-SET_TARGET_PROPERTIES( assimp_simpleogl PROPERTIES
-  OUTPUT_NAME assimp_simpleogl
+TARGET_LINK_LIBRARIES( ${SAMPLE_PROJECT_NAME} assimp ${OPENGL_LIBRARIES} ${GLUT_LIBRARIES} ${M_LIB} )
+SET_TARGET_PROPERTIES( ${SAMPLE_PROJECT_NAME} PROPERTIES
+  OUTPUT_NAME ${SAMPLE_PROJECT_NAME}
 )
 
-INSTALL( TARGETS assimp_simpleogl
+INSTALL( TARGETS ${SAMPLE_PROJECT_NAME}
   DESTINATION "${ASSIMP_BIN_INSTALL_DIR}" COMPONENT assimp-dev
 )

samples/SimpleOpenGL/Sample_SimpleOpenGL.c

@@ -15,9 +15,9 @@
 #include <stdio.h>
 
 #ifdef __APPLE__
-#include <glut.h>
+#include <freeglut.h>
 #else
-#include <GL/glut.h>
+#include <GL/freeglut.h>
 #endif
 
 /* assimp include files. These three are usually needed. */
@@ -25,6 +25,39 @@
 #include <assimp/scene.h>
 #include <assimp/postprocess.h>
 
+#define COMMAND_USAGE "--usage"
+
+/* ---------------------------------------------------------------------------- */
+inline static void print_run_command(const char* command_name) {
+	printf("Run '%s %s' for more information.\n", 
+		PROJECT_NAME, command_name);
+}
+
+/* ---------------------------------------------------------------------------- */
+inline static void print_error(const char* msg) {
+	printf("ERROR: %s\n", msg);
+}
+
+#define NEW_LINE "\n"
+#define DOUBLE_NEW_LINE NEW_LINE NEW_LINE
+
+/* ---------------------------------------------------------------------------- */
+inline static void print_usage() {
+	static const char* usage_format = 
+		"Usage: "
+		PROJECT_NAME
+		" <file>"	 DOUBLE_NEW_LINE
+		"where:"	 DOUBLE_NEW_LINE
+		"  %-10s %s" DOUBLE_NEW_LINE
+		"options:"	 DOUBLE_NEW_LINE
+		"  %-10s %s" DOUBLE_NEW_LINE;
+	printf(usage_format,
+		// where
+		"file", "The input model file to load.",
+		// options
+		COMMAND_USAGE, "Display usage.");
+}
+
 /* the global Assimp scene object */
 const C_STRUCT aiScene* scene = NULL;
 GLuint scene_list = 0;
@@ -245,7 +278,7 @@ void do_motion (void)
 	static int frames = 0;
 
 	int time = glutGet(GLUT_ELAPSED_TIME);
-	angle += (time-prev_time)*0.01;
+	angle += static_cast<float>((time-prev_time)*0.01);
 	prev_time = time;
 
 	frames += 1;
@@ -324,12 +357,42 @@ int loadasset (const char* path)
 /* ---------------------------------------------------------------------------- */
 int main(int argc, char **argv)
 {
+	const char* model_file = NULL;
 	C_STRUCT aiLogStream stream;
 
+	if (argc < 2) {
+		print_error("No input model file specifed.");
+		print_run_command(COMMAND_USAGE);
+		return EXIT_FAILURE;
+	}
+
+	// Find and execute available commands entered by the user.
+	for (int i = 1; i < argc; ++i) {
+		if (!strncmp(argv[i], COMMAND_USAGE, strlen(COMMAND_USAGE))) {
+			print_usage();
+			return EXIT_SUCCESS;
+		}
+	}
+
+	// Check and validate the specified model file extension.
+	model_file = argv[1];
+	const char* extension = strchr(model_file, '.');
+	if (!extension) {
+		print_error("Please provide a file with a valid extension.");
+		return EXIT_FAILURE;
+	}
+
+	if (AI_FALSE == aiIsExtensionSupported(extension)) {
+		print_error("The specified model file extension is currently "
+			"unsupported in Assimp " ASSIMP_VERSION ".");
+		return EXIT_FAILURE;
+	}
+
 	glutInitWindowSize(900,600);
 	glutInitWindowPosition(100,100);
 	glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);
 	glutInit(&argc, argv);
+	glutSetOption(GLUT_ACTION_ON_WINDOW_CLOSE, GLUT_ACTION_GLUTMAINLOOP_RETURNS);
 
 	glutCreateWindow("Assimp - Very simple OpenGL sample");
 	glutDisplayFunc(display);
@@ -346,14 +409,11 @@ int main(int argc, char **argv)
 	stream = aiGetPredefinedLogStream(aiDefaultLogStream_FILE,"assimp_log.txt");
 	aiAttachLogStream(&stream);
 
-	/* the model name can be specified on the command line. If none
-	  is specified, we try to locate one of the more expressive test
-	  models from the repository (/models-nonbsd may be missing in
-	  some distributions so we need a fallback from /models!). */
-	if( 0 != loadasset( argc >= 2 ? argv[1] : "../../test/models-nonbsd/X/dwarf.x")) {
-		if( argc != 1 || (0 != loadasset( "../../../../test/models-nonbsd/X/dwarf.x") && 0 != loadasset( "../../test/models/X/Testwuson.X"))) {
-			return -1;
-		}
+	// Load the model file.
+	if(0 != loadasset(model_file)) {
+		print_error("Failed to load model. Please ensure that the specified file exists.");
+		aiDetachAllLogStreams();
+		return EXIT_FAILURE;
 	}
 
 	glClearColor(0.1f,0.1f,0.1f,1.f);
@@ -384,5 +444,5 @@ int main(int argc, char **argv)
 	   again. This will definitely release the last resources allocated
 	   by Assimp.*/
 	aiDetachAllLogStreams();
-	return 0;
+	return EXIT_SUCCESS;
 }

samples/SimpleTexturedDirectx11/SimpleTexturedDirectx11/Mesh.h

@@ -31,40 +31,40 @@ struct Texture {
 
 class Mesh {
 public:
-    std::vector<VERTEX> vertices;
-    std::vector<UINT> indices;
-    std::vector<Texture> textures;
-    ID3D11Device *dev;
+    std::vector<VERTEX> vertices_;
+    std::vector<UINT> indices_;
+    std::vector<Texture> textures_;
+    ID3D11Device *dev_;
 
     Mesh(ID3D11Device *dev, const std::vector<VERTEX>& vertices, const std::vector<UINT>& indices, const std::vector<Texture>& textures) :
-            vertices(vertices),
-            indices(indices),
-            textures(textures),
-            dev(dev),
-            VertexBuffer(nullptr),
-            IndexBuffer(nullptr) {
-        this->setupMesh(this->dev);
+            vertices_(vertices),
+            indices_(indices),
+            textures_(textures),
+            dev_(dev),
+            VertexBuffer_(nullptr),
+            IndexBuffer_(nullptr) {
+        this->setupMesh(this->dev_);
     }
 
     void Draw(ID3D11DeviceContext *devcon) {
         UINT stride = sizeof(VERTEX);
         UINT offset = 0;
 
-        devcon->IASetVertexBuffers(0, 1, &VertexBuffer, &stride, &offset);
-        devcon->IASetIndexBuffer(IndexBuffer, DXGI_FORMAT_R32_UINT, 0);
+        devcon->IASetVertexBuffers(0, 1, &VertexBuffer_, &stride, &offset);
+        devcon->IASetIndexBuffer(IndexBuffer_, DXGI_FORMAT_R32_UINT, 0);
 
-        devcon->PSSetShaderResources(0, 1, &textures[0].texture);
+        devcon->PSSetShaderResources(0, 1, &textures_[0].texture);
 
-        devcon->DrawIndexed(static_cast<UINT>(indices.size()), 0, 0);
+        devcon->DrawIndexed(static_cast<UINT>(indices_.size()), 0, 0);
     }
 
     void Close() {
-        SafeRelease(VertexBuffer);
-        SafeRelease(IndexBuffer);
+        SafeRelease(VertexBuffer_);
+        SafeRelease(IndexBuffer_);
     }
 private:
     // Render data
-    ID3D11Buffer *VertexBuffer, *IndexBuffer;
+    ID3D11Buffer *VertexBuffer_, *IndexBuffer_;
 
     // Functions
     // Initializes all the buffer objects/arrays
@@ -73,15 +73,15 @@ private:
 
         D3D11_BUFFER_DESC vbd;
         vbd.Usage = D3D11_USAGE_IMMUTABLE;
-        vbd.ByteWidth = static_cast<UINT>(sizeof(VERTEX) * vertices.size());
+        vbd.ByteWidth = static_cast<UINT>(sizeof(VERTEX) * vertices_.size());
         vbd.BindFlags = D3D11_BIND_VERTEX_BUFFER;
         vbd.CPUAccessFlags = 0;
         vbd.MiscFlags = 0;
 
         D3D11_SUBRESOURCE_DATA initData;
-        initData.pSysMem = &vertices[0];
+        initData.pSysMem = &vertices_[0];
 
-        hr = dev->CreateBuffer(&vbd, &initData, &VertexBuffer);
+        hr = dev->CreateBuffer(&vbd, &initData, &VertexBuffer_);
         if (FAILED(hr)) {
             Close();
             throw std::runtime_error("Failed to create vertex buffer.");
@@ -89,14 +89,14 @@ private:
 
         D3D11_BUFFER_DESC ibd;
         ibd.Usage = D3D11_USAGE_IMMUTABLE;
-        ibd.ByteWidth = static_cast<UINT>(sizeof(UINT) * indices.size());
+        ibd.ByteWidth = static_cast<UINT>(sizeof(UINT) * indices_.size());
         ibd.BindFlags = D3D11_BIND_INDEX_BUFFER;
         ibd.CPUAccessFlags = 0;
         ibd.MiscFlags = 0;
 
-        initData.pSysMem = &indices[0];
+        initData.pSysMem = &indices_[0];
 
-        hr = dev->CreateBuffer(&ibd, &initData, &IndexBuffer);
+        hr = dev->CreateBuffer(&ibd, &initData, &IndexBuffer_);
         if (FAILED(hr)) {
             Close();
             throw std::runtime_error("Failed to create index buffer.");

samples/SimpleTexturedDirectx11/SimpleTexturedDirectx11/ModelLoader.cpp

@@ -1,12 +1,12 @@
 #include "ModelLoader.h"
 
 ModelLoader::ModelLoader() : 
-        dev(nullptr),
-        devcon(nullptr),
-        meshes(),
-        directory(),
-        textures_loaded(),
-        hwnd(nullptr) {
+        dev_(nullptr),
+        devcon_(nullptr),
+        meshes_(),
+        directory_(),
+        textures_loaded_(),
+        hwnd_(nullptr) {
     // empty
 }
 
@@ -22,14 +22,14 @@ bool ModelLoader::Load(HWND hwnd, ID3D11Device * dev, ID3D11DeviceContext * devc
 		aiProcess_Triangulate |
 		aiProcess_ConvertToLeftHanded);
 
-	if (pScene == NULL)
+	if (pScene == nullptr)
 		return false;
 
-	this->directory = filename.substr(0, filename.find_last_of("/\\"));
+	this->directory_ = filename.substr(0, filename.find_last_of("/\\"));
 
-	this->dev = dev;
-	this->devcon = devcon;
-	this->hwnd = hwnd;
+	this->dev_ = dev;
+	this->devcon_ = devcon;
+	this->hwnd_ = hwnd;
 
 	processNode(pScene->mRootNode, pScene);
 
@@ -37,8 +37,8 @@ bool ModelLoader::Load(HWND hwnd, ID3D11Device * dev, ID3D11DeviceContext * devc
 }
 
 void ModelLoader::Draw(ID3D11DeviceContext * devcon) {
-	for (int i = 0; i < meshes.size(); ++i ) {
-		meshes[i].Draw(devcon);
+	for (size_t i = 0; i < meshes_.size(); ++i ) {
+		meshes_[i].Draw(devcon);
 	}
 }
 
@@ -88,7 +88,7 @@ Mesh ModelLoader::processMesh(aiMesh * mesh, const aiScene * scene) {
 		textures.insert(textures.end(), diffuseMaps.begin(), diffuseMaps.end());
 	}
 
-	return Mesh(dev, vertices, indices, textures);
+	return Mesh(dev_, vertices, indices, textures);
 }
 
 std::vector<Texture> ModelLoader::loadMaterialTextures(aiMaterial * mat, aiTextureType type, std::string typeName, const aiScene * scene) {
@@ -98,9 +98,9 @@ std::vector<Texture> ModelLoader::loadMaterialTextures(aiMaterial * mat, aiTextu
 		mat->GetTexture(type, i, &str);
 		// Check if texture was loaded before and if so, continue to next iteration: skip loading a new texture
 		bool skip = false;
-		for (UINT j = 0; j < textures_loaded.size(); j++) {
-			if (std::strcmp(textures_loaded[j].path.c_str(), str.C_Str()) == 0) {
-				textures.push_back(textures_loaded[j]);
+		for (UINT j = 0; j < textures_loaded_.size(); j++) {
+			if (std::strcmp(textures_loaded_[j].path.c_str(), str.C_Str()) == 0) {
+				textures.push_back(textures_loaded_[j]);
 				skip = true; // A texture with the same filepath has already been loaded, continue to next one. (optimization)
 				break;
 			}
@@ -113,34 +113,34 @@ std::vector<Texture> ModelLoader::loadMaterialTextures(aiMaterial * mat, aiTextu
 				texture.texture = getTextureFromModel(scene, textureindex);
 			} else {
 				std::string filename = std::string(str.C_Str());
-				filename = directory + '/' + filename;
+				filename = directory_ + '/' + filename;
 				std::wstring filenamews = std::wstring(filename.begin(), filename.end());
-				hr = CreateWICTextureFromFile(dev, devcon, filenamews.c_str(), nullptr, &texture.texture);
+				hr = CreateWICTextureFromFile(dev_, devcon_, filenamews.c_str(), nullptr, &texture.texture);
 				if (FAILED(hr))
-					MessageBox(hwnd, "Texture couldn't be loaded", "Error!", MB_ICONERROR | MB_OK);
+					MessageBox(hwnd_, "Texture couldn't be loaded", "Error!", MB_ICONERROR | MB_OK);
 			}
 			texture.type = typeName;
 			texture.path = str.C_Str();
 			textures.push_back(texture);
-			this->textures_loaded.push_back(texture);  // Store it as texture loaded for entire model, to ensure we won't unnecesery load duplicate textures.
+			this->textures_loaded_.push_back(texture);  // Store it as texture loaded for entire model, to ensure we won't unnecesery load duplicate textures.
 		}
 	}
 	return textures;
 }
 
 void ModelLoader::Close() {
-	for (auto& t : textures_loaded)
+	for (auto& t : textures_loaded_)
 		t.Release();
 
-	for (int i = 0; i < meshes.size(); i++) {
-		meshes[i].Close();
+	for (size_t i = 0; i < meshes_.size(); i++) {
+		meshes_[i].Close();
 	}
 }
 
 void ModelLoader::processNode(aiNode * node, const aiScene * scene) {
 	for (UINT i = 0; i < node->mNumMeshes; i++) {
 		aiMesh* mesh = scene->mMeshes[node->mMeshes[i]];
-		meshes.push_back(this->processMesh(mesh, scene));
+		meshes_.push_back(this->processMesh(mesh, scene));
 	}
 
 	for (UINT i = 0; i < node->mNumChildren; i++) {
@@ -179,9 +179,9 @@ ID3D11ShaderResourceView * ModelLoader::getTextureFromModel(const aiScene * scen
 
 	int* size = reinterpret_cast<int*>(&scene->mTextures[textureindex]->mWidth);
 
-	hr = CreateWICTextureFromMemory(dev, devcon, reinterpret_cast<unsigned char*>(scene->mTextures[textureindex]->pcData), *size, nullptr, &texture);
+	hr = CreateWICTextureFromMemory(dev_, devcon_, reinterpret_cast<unsigned char*>(scene->mTextures[textureindex]->pcData), *size, nullptr, &texture);
 	if (FAILED(hr))
-		MessageBox(hwnd, "Texture couldn't be created from memory!", "Error!", MB_ICONERROR | MB_OK);
+		MessageBox(hwnd_, "Texture couldn't be created from memory!", "Error!", MB_ICONERROR | MB_OK);
 
 	return texture;
 }

samples/SimpleTexturedDirectx11/SimpleTexturedDirectx11/ModelLoader.h

@@ -25,12 +25,12 @@ public:
 
 	void Close();
 private:
-	ID3D11Device *dev;
-	ID3D11DeviceContext *devcon;
-	std::vector<Mesh> meshes;
-	std::string directory;
-	std::vector<Texture> textures_loaded;
-	HWND hwnd;
+	ID3D11Device *dev_;
+	ID3D11DeviceContext *devcon_;
+	std::vector<Mesh> meshes_;
+	std::string directory_;
+	std::vector<Texture> textures_loaded_;
+	HWND hwnd_;
 
 	void processNode(aiNode* node, const aiScene* scene);
 	Mesh processMesh(aiMesh* mesh, const aiScene* scene);

samples/SimpleTexturedDirectx11/SimpleTexturedDirectx11/main.cpp

@@ -56,7 +56,7 @@ const char g_szClassName[] = "directxWindowClass";
 static std::string g_ModelPath;
 
 UINT width, height;
-HWND hwnd = nullptr;
+HWND g_hwnd = nullptr;
 
 // ------------------------------------------------------------
 //                        DirectX Variables
@@ -120,13 +120,13 @@ LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
 	return 0;
 }
 
-int WINAPI wWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
-	LPWSTR lpCmdLine, int nCmdShow)
+int WINAPI wWinMain(HINSTANCE hInstance, HINSTANCE /*hPrevInstance*/,
+	LPWSTR /*lpCmdLine*/, int nCmdShow)
 {
 	int argc;
 	LPWSTR* argv = CommandLineToArgvW(GetCommandLineW(), &argc);
 	if (!argv) {
-		MessageBox(NULL, 
+		MessageBox(nullptr, 
 			TEXT("An error occured while reading command line arguments."),
 			TEXT("Error!"),
 			MB_ICONERROR | MB_OK);
@@ -143,7 +143,7 @@ int WINAPI wWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
 
 	// Ensure that a model file has been specified.
 	if (argc < 2) {
-		MessageBox(NULL, 
+		MessageBox(nullptr, 
 			TEXT("No model file specified. The program will now close."), 
 			TEXT("Error!"),
 			MB_ICONERROR | MB_OK);
@@ -165,16 +165,16 @@ int WINAPI wWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
 	wc.cbClsExtra = 0;
 	wc.cbWndExtra = 0;
 	wc.hInstance = hInstance;
-	wc.hIcon = LoadIcon(NULL, IDI_APPLICATION);
-	wc.hCursor = LoadCursor(NULL, IDC_ARROW);
-	wc.hbrBackground = NULL;
-	wc.lpszMenuName = NULL;
+	wc.hIcon = LoadIcon(nullptr, IDI_APPLICATION);
+	wc.hCursor = LoadCursor(nullptr, IDC_ARROW);
+	wc.hbrBackground = nullptr;
+	wc.lpszMenuName = nullptr;
 	wc.lpszClassName = g_szClassName;
-	wc.hIconSm = LoadIcon(NULL, IDI_APPLICATION);
+	wc.hIconSm = LoadIcon(nullptr, IDI_APPLICATION);
 
 	if (!RegisterClassEx(&wc))
 	{
-		MessageBox(NULL, "Window Registration Failed!", "Error!",
+		MessageBox(nullptr, "Window Registration Failed!", "Error!",
 			MB_ICONEXCLAMATION | MB_OK);
 		return 0;
 	}
@@ -182,35 +182,35 @@ int WINAPI wWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
 	RECT wr = { 0,0, SCREEN_WIDTH, SCREEN_HEIGHT };
 	AdjustWindowRect(&wr, WS_OVERLAPPEDWINDOW, FALSE);
 
-	hwnd = CreateWindowEx(
+	g_hwnd = CreateWindowEx(
 		WS_EX_CLIENTEDGE,
 		g_szClassName,
 		" Simple Textured Directx11 Sample ",
 		WS_OVERLAPPEDWINDOW,
 		CW_USEDEFAULT, CW_USEDEFAULT, wr.right - wr.left, wr.bottom - wr.top,
-		NULL, NULL, hInstance, NULL
+		nullptr, nullptr, hInstance, nullptr
 	);
 
-	if (hwnd == NULL)
+	if (g_hwnd == nullptr)
 	{
-		MessageBox(NULL, "Window Creation Failed!", "Error!",
+		MessageBox(nullptr, "Window Creation Failed!", "Error!",
 			MB_ICONEXCLAMATION | MB_OK);
 		return 0;
 	}
 
-	ShowWindow(hwnd, nCmdShow);
-	UpdateWindow(hwnd);
+	ShowWindow(g_hwnd, nCmdShow);
+	UpdateWindow(g_hwnd);
 
 	width = wr.right - wr.left;
 	height = wr.bottom - wr.top;
 
 	try {
-		InitD3D(hInstance, hwnd);
+		InitD3D(hInstance, g_hwnd);
 
 		while (true)
 		{
 
-			if (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE))
+			if (PeekMessage(&msg, nullptr, 0, 0, PM_REMOVE))
 			{
 				TranslateMessage(&msg);
 				DispatchMessage(&msg);
@@ -225,17 +225,17 @@ int WINAPI wWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
 		CleanD3D();
 		return static_cast<int>(msg.wParam);
 	} catch (const std::exception& e) {
-		MessageBox(hwnd, e.what(), TEXT("Error!"), MB_ICONERROR | MB_OK);
+		MessageBox(g_hwnd, e.what(), TEXT("Error!"), MB_ICONERROR | MB_OK);
 		CleanD3D();
 		return EXIT_FAILURE;
 	} catch (...) {
-		MessageBox(hwnd, TEXT("Caught an unknown exception."), TEXT("Error!"), MB_ICONERROR | MB_OK);
+		MessageBox(g_hwnd, TEXT("Caught an unknown exception."), TEXT("Error!"), MB_ICONERROR | MB_OK);
 		CleanD3D();
 		return EXIT_FAILURE;
 	}
 }
 
-void InitD3D(HINSTANCE hinstance, HWND hWnd)
+void InitD3D(HINSTANCE /*hinstance*/, HWND hWnd)
 {
 	HRESULT hr;
 
@@ -362,7 +362,7 @@ void InitD3D(HINSTANCE hinstance, HWND hWnd)
 	}
 
 	// Note this tutorial doesn't handle full-screen swapchains so we block the ALT+ENTER shortcut
-	dxgiFactory->MakeWindowAssociation(hwnd, DXGI_MWA_NO_ALT_ENTER);
+	dxgiFactory->MakeWindowAssociation(g_hwnd, DXGI_MWA_NO_ALT_ENTER);
 
 	dxgiFactory->Release();
 
@@ -372,7 +372,7 @@ void InitD3D(HINSTANCE hinstance, HWND hWnd)
 	ID3D11Texture2D *pBackBuffer;
 	swapchain->GetBuffer(0, __uuidof(ID3D11Texture2D), (LPVOID*)&pBackBuffer);
 
-	dev->CreateRenderTargetView(pBackBuffer, NULL, &backbuffer);
+	dev->CreateRenderTargetView(pBackBuffer, nullptr, &backbuffer);
 	pBackBuffer->Release();
 
 	D3D11_TEXTURE2D_DESC descDepth;
@@ -440,7 +440,7 @@ void InitD3D(HINSTANCE hinstance, HWND hWnd)
 void CleanD3D(void)
 {
 	if (swapchain)
-		swapchain->SetFullscreenState(FALSE, NULL);
+		swapchain->SetFullscreenState(FALSE, nullptr);
 
 	if (ourModel) {
 		ourModel->Close();
@@ -513,8 +513,8 @@ void InitPipeline()
 	if(FAILED(CompileShaderFromFile(SHADER_PATH PIXEL_SHADER_FILE, 0, "main", "ps_4_0", &PS)))
 		Throwanerror(UTFConverter(L"Failed to compile shader from file " PIXEL_SHADER_FILE).c_str());
 
-	dev->CreateVertexShader(VS->GetBufferPointer(), VS->GetBufferSize(), NULL, &pVS);
-	dev->CreatePixelShader(PS->GetBufferPointer(), PS->GetBufferSize(), NULL, &pPS);
+	dev->CreateVertexShader(VS->GetBufferPointer(), VS->GetBufferSize(), nullptr, &pVS);
+	dev->CreatePixelShader(PS->GetBufferPointer(), PS->GetBufferSize(), nullptr, &pPS);
 
 	D3D11_INPUT_ELEMENT_DESC ied[] =
 	{
@@ -564,7 +564,7 @@ void InitGraphics()
 	m_View = XMMatrixLookAtLH(Eye, At, Up);
 
 	ourModel = new ModelLoader;
-	if (!ourModel->Load(hwnd, dev, devcon, g_ModelPath))
+	if (!ourModel->Load(g_hwnd, dev, devcon, g_ModelPath))
 		Throwanerror("Model couldn't be loaded");
 }
 
@@ -576,16 +576,16 @@ HRESULT	CompileShaderFromFile(LPCWSTR pFileName, const D3D_SHADER_MACRO* pDefine
 	compileFlags |= D3DCOMPILE_DEBUG;
 #endif
 
-	ID3DBlob* pErrorBlob = NULL;
+	ID3DBlob* pErrorBlob = nullptr;
 
 	HRESULT result = D3DCompileFromFile(pFileName, pDefines, D3D_COMPILE_STANDARD_FILE_INCLUDE, pEntryPoint, pShaderModel, compileFlags, 0, ppBytecodeBlob, &pErrorBlob);
 	if (FAILED(result))
 	{
-		if (pErrorBlob != NULL)
+		if (pErrorBlob != nullptr)
 			OutputDebugStringA((LPCSTR)pErrorBlob->GetBufferPointer());
 	}
 
-	if (pErrorBlob != NULL)
+	if (pErrorBlob != nullptr)
 		pErrorBlob->Release();
 
 	return result;

samples/SimpleTexturedOpenGL/SimpleTexturedOpenGL/src/model_loading.cpp

@@ -18,8 +18,10 @@
 #include <GL/gl.h>
 #include <GL/glu.h>
 
+#pragma warning(disable: 4100) // Disable warning 'unreferenced formal parameter'
 #define STB_IMAGE_IMPLEMENTATION
 #include "contrib/stb_image/stb_image.h"
+#pragma warning(default: 4100) // Enable warning 'unreferenced formal parameter'
 
 #include <fstream>
 
@@ -38,10 +40,10 @@
 // The default hard-coded path. Can be overridden by supplying a path through the command line.
 static std::string modelpath = "../../test/models/OBJ/spider.obj";
 
-HGLRC		hRC=NULL;			// Permanent Rendering Context
-HDC			hDC=NULL;			// Private GDI Device Context
-HWND		hWnd=NULL;			// Holds Window Handle
-HINSTANCE	hInstance;	// Holds The Instance Of The Application
+HGLRC       hRC=nullptr;            // Permanent Rendering Context
+HDC         hDC=nullptr;            // Private GDI Device Context
+HWND        g_hWnd=nullptr;         // Holds Window Handle
+HINSTANCE   g_hInstance=nullptr;    // Holds The Instance Of The Application
 
 bool		keys[256];			// Array used for Keyboard Routine;
 bool		active=TRUE;		// Window Active Flag Set To TRUE by Default
@@ -64,7 +66,7 @@ GLfloat LightPosition[]= { 0.0f, 0.0f, 15.0f, 1.0f };
 
 
 // the global Assimp scene object
-const aiScene* scene = NULL;
+const aiScene* g_scene = nullptr;
 GLuint scene_list = 0;
 aiVector3D scene_min, scene_max, scene_center;
 
@@ -122,15 +124,15 @@ bool Import3DFromFile( const std::string& pFile)
 	}
 	else
 	{
-		MessageBox(NULL, UTFConverter("Couldn't open file: " + pFile).c_wstr() , TEXT("ERROR"), MB_OK | MB_ICONEXCLAMATION);
+		MessageBox(nullptr, UTFConverter("Couldn't open file: " + pFile).c_wstr() , TEXT("ERROR"), MB_OK | MB_ICONEXCLAMATION);
 		logInfo( importer.GetErrorString());
 		return false;
 	}
 
-	scene = importer.ReadFile( pFile, aiProcessPreset_TargetRealtime_Quality);
+	g_scene = importer.ReadFile(pFile, aiProcessPreset_TargetRealtime_Quality);
 
 	// If the import failed, report it
-	if( !scene)
+	if(!g_scene)
 	{
 		logInfo( importer.GetErrorString());
 		return false;
@@ -179,7 +181,7 @@ void freeTextureIds()
 	if (textureIds)
 	{
 		delete[] textureIds;
-		textureIds = NULL;
+		textureIds = nullptr;
 	}
 }
 
@@ -215,7 +217,7 @@ int LoadGLTextures(const aiScene* scene)
 		while (texFound == AI_SUCCESS)
 		{
 			texFound = scene->mMaterials[m]->GetTexture(aiTextureType_DIFFUSE, texIndex, &path);
-			textureIdMap[path.data] = NULL; //fill map with textures, pointers still NULL yet
+			textureIdMap[path.data] = nullptr; //fill map with textures, pointers still NULL yet
 			texIndex++;
 		}
 	}
@@ -283,7 +285,7 @@ int LoadGLTextures(const aiScene* scene)
 		else
 		{
 			/* Error occurred */
-			MessageBox(NULL, UTFConverter("Couldn't load Image: " + fileloc).c_wstr(), TEXT("ERROR"), MB_OK | MB_ICONEXCLAMATION);
+			MessageBox(nullptr, UTFConverter("Couldn't load Image: " + fileloc).c_wstr(), TEXT("ERROR"), MB_OK | MB_ICONEXCLAMATION);
 		}
 	}
     // Because we have already copied image data into texture data  we can release memory used by image.
@@ -299,7 +301,7 @@ int LoadGLTextures(const aiScene* scene)
 // All Setup For OpenGL goes here
 int InitGL()
 {
-	if (!LoadGLTextures(scene))
+	if (!LoadGLTextures(g_scene))
 	{
 		return FALSE;
 	}
@@ -440,12 +442,12 @@ void recursive_render (const struct aiScene *sc, const struct aiNode* nd, float
 	// draw all meshes assigned to this node
 	for (; n < nd->mNumMeshes; ++n)
 	{
-		const struct aiMesh* mesh = scene->mMeshes[nd->mMeshes[n]];
+		const struct aiMesh* mesh = sc->mMeshes[nd->mMeshes[n]];
 
 		apply_material(sc->mMaterials[mesh->mMaterialIndex]);
 
 
-		if(mesh->mNormals == NULL)
+		if(mesh->mNormals == nullptr)
 		{
 			glDisable(GL_LIGHTING);
 		}
@@ -454,7 +456,7 @@ void recursive_render (const struct aiScene *sc, const struct aiNode* nd, float
 			glEnable(GL_LIGHTING);
 		}
 
-		if(mesh->mColors[0] != NULL)
+		if(mesh->mColors[0] != nullptr)
 		{
 			glEnable(GL_COLOR_MATERIAL);
 		}
@@ -480,9 +482,9 @@ void recursive_render (const struct aiScene *sc, const struct aiNode* nd, float
 			for(i = 0; i < face->mNumIndices; i++)		// go through all vertices in face
 			{
 				int vertexIndex = face->mIndices[i];	// get group index for current index
-				if(mesh->mColors[0] != NULL)
+				if(mesh->mColors[0] != nullptr)
 					Color4f(&mesh->mColors[0][vertexIndex]);
-				if(mesh->mNormals != NULL)
+				if(mesh->mNormals != nullptr)
 
 					if(mesh->HasTextureCoords(0))		//HasTextureCoords(texture_coordinates_set)
 					{
@@ -527,7 +529,7 @@ int DrawGLScene()				//Here's where we do all the drawing
 	glRotatef(yrot, 0.0f, 1.0f, 0.0f);
 	glRotatef(zrot, 0.0f, 0.0f, 1.0f);
 
-	drawAiScene(scene);
+	drawAiScene(g_scene);
 
 	//xrot+=0.3f;
 	yrot+=0.2f;
@@ -541,50 +543,50 @@ void KillGLWindow()			// Properly Kill The Window
 {
 	if (fullscreen)					// Are We In Fullscreen Mode?
 	{
-		ChangeDisplaySettings(NULL, 0);		// If So Switch Back To The Desktop
+		ChangeDisplaySettings(nullptr, 0);	// If So Switch Back To The Desktop
 		ShowCursor(TRUE);					// Show Mouse Pointer
 	}
 
 	if (hRC)					// Do We Have A Rendering Context?
 	{
-		if (!wglMakeCurrent(NULL, NULL))	// Are We Able To Release The DC And RC Contexts?
+		if (!wglMakeCurrent(nullptr, nullptr))	// Are We Able To Release The DC And RC Contexts?
 		{
-			MessageBox(NULL, TEXT("Release Of DC And RC Failed."), TEXT("SHUTDOWN ERROR"), MB_OK | MB_ICONINFORMATION);
+			MessageBox(nullptr, TEXT("Release Of DC And RC Failed."), TEXT("SHUTDOWN ERROR"), MB_OK | MB_ICONINFORMATION);
 		}
 
 		if (!wglDeleteContext(hRC))			// Are We Able To Delete The RC?
 		{
-			MessageBox(NULL, TEXT("Release Rendering Context Failed."), TEXT("SHUTDOWN ERROR"), MB_OK | MB_ICONINFORMATION);
+			MessageBox(nullptr, TEXT("Release Rendering Context Failed."), TEXT("SHUTDOWN ERROR"), MB_OK | MB_ICONINFORMATION);
 		}
-		hRC = NULL;
+		hRC = nullptr;
 	}
 
 	if (hDC)
 	{
-		if (!ReleaseDC(hWnd, hDC)) // Are We able to Release The DC?
-			MessageBox(NULL, TEXT("Release Device Context Failed."), TEXT("SHUTDOWN ERROR"), MB_OK | MB_ICONINFORMATION);
-		hDC = NULL;
+		if (!ReleaseDC(g_hWnd, hDC)) // Are We able to Release The DC?
+			MessageBox(nullptr, TEXT("Release Device Context Failed."), TEXT("SHUTDOWN ERROR"), MB_OK | MB_ICONINFORMATION);
+		hDC = nullptr;
 	}
 
-	if (hWnd)
+	if (g_hWnd)
 	{
-		if (!DestroyWindow(hWnd)) // Are We Able To Destroy The Window
-			MessageBox(NULL, TEXT("Could Not Release hWnd."), TEXT("SHUTDOWN ERROR"), MB_OK | MB_ICONINFORMATION);
-		hWnd = NULL;
+		if (!DestroyWindow(g_hWnd)) // Are We Able To Destroy The Window
+			MessageBox(nullptr, TEXT("Could Not Release hWnd."), TEXT("SHUTDOWN ERROR"), MB_OK | MB_ICONINFORMATION);
+		g_hWnd = nullptr;
 	} 
 
-	if (hInstance)
+	if (g_hInstance)
 	{
-		if (!UnregisterClass(TEXT("OpenGL"), hInstance)) // Are We Able To Unregister Class
-			MessageBox(NULL, TEXT("Could Not Unregister Class."), TEXT("SHUTDOWN ERROR"), MB_OK | MB_ICONINFORMATION);
-		hInstance = NULL;
+		if (!UnregisterClass(TEXT("OpenGL"), g_hInstance)) // Are We Able To Unregister Class
+			MessageBox(nullptr, TEXT("Could Not Unregister Class."), TEXT("SHUTDOWN ERROR"), MB_OK | MB_ICONINFORMATION);
+		g_hInstance = nullptr;
 	}
 }
 
 GLboolean abortGLInit(const char* abortMessage)
 {
 	KillGLWindow();									// Reset Display
-	MessageBox(NULL, UTFConverter(abortMessage).c_wstr(), TEXT("ERROR"), MB_OK|MB_ICONEXCLAMATION);
+	MessageBox(nullptr, UTFConverter(abortMessage).c_wstr(), TEXT("ERROR"), MB_OK|MB_ICONEXCLAMATION);
 	return FALSE;									// quit and return False
 }
 
@@ -602,21 +604,21 @@ BOOL CreateGLWindow(const char* title, int width, int height, int bits, bool ful
 
 	fullscreen = fullscreenflag;
 
-	hInstance = GetModuleHandle(NULL);	// Grab An Instance For Our Window
+	g_hInstance = GetModuleHandle(nullptr);	// Grab An Instance For Our Window
 	wc.style		= CS_HREDRAW | CS_VREDRAW | CS_OWNDC; // Redraw On Move, And Own DC For Window
 	wc.lpfnWndProc	= (WNDPROC) WndProc;		// WndProc handles Messages
 	wc.cbClsExtra	= 0;	// No Extra Window Data
 	wc.cbWndExtra	= 0;	// No Extra Window Data
-	wc.hInstance	= hInstance;
-	wc.hIcon		= LoadIcon(NULL, IDI_WINLOGO);	// Load The Default Icon
-	wc.hCursor		= LoadCursor(NULL, IDC_ARROW);	// Load the default arrow
-	wc.hbrBackground= NULL;							// No Background required for OpenGL
-	wc.lpszMenuName	= NULL;							// No Menu
+	wc.hInstance	= g_hInstance;
+	wc.hIcon		= LoadIcon(nullptr, IDI_WINLOGO);	// Load The Default Icon
+	wc.hCursor		= LoadCursor(nullptr, IDC_ARROW);	// Load the default arrow
+	wc.hbrBackground= nullptr;						// No Background required for OpenGL
+	wc.lpszMenuName	= nullptr;						// No Menu
 	wc.lpszClassName= TEXT("OpenGL");		        // Class Name
 
 	if (!RegisterClass(&wc))
 	{
-		MessageBox(NULL, TEXT("Failed to register the window class"), TEXT("ERROR"), MB_OK | MB_ICONEXCLAMATION);
+		MessageBox(nullptr, TEXT("Failed to register the window class"), TEXT("ERROR"), MB_OK | MB_ICONEXCLAMATION);
 		return FALSE;		//exit and return false
 	}
 
@@ -634,14 +636,14 @@ BOOL CreateGLWindow(const char* title, int width, int height, int bits, bool ful
 		if (ChangeDisplaySettings(&dmScreenSettings, CDS_FULLSCREEN)!=DISP_CHANGE_SUCCESSFUL)
 		{
 			// If The Mode Fails, Offer Two Options.  Quit Or Run In A Window.
-			if (MessageBox(NULL,TEXT("The Requested Fullscreen Mode Is Not Supported By\nYour Video Card. Use Windowed Mode Instead?"),TEXT("NeHe GL"),MB_YESNO|MB_ICONEXCLAMATION)==IDYES)
+			if (MessageBox(nullptr,TEXT("The Requested Fullscreen Mode Is Not Supported By\nYour Video Card. Use Windowed Mode Instead?"),TEXT("NeHe GL"),MB_YESNO|MB_ICONEXCLAMATION)==IDYES)
 			{
 				fullscreen = FALSE;		// Select Windowed Mode (Fullscreen = FALSE)
 			}
 			else
 			{
 				//Popup Messagebox: Closing
-				MessageBox(NULL, TEXT("Program will close now."), TEXT("ERROR"), MB_OK|MB_ICONSTOP);
+				MessageBox(nullptr, TEXT("Program will close now."), TEXT("ERROR"), MB_OK|MB_ICONSTOP);
 				return FALSE; //exit, return false
 			}
 		}
@@ -661,7 +663,7 @@ BOOL CreateGLWindow(const char* title, int width, int height, int bits, bool ful
 
 	AdjustWindowRectEx(&WindowRect, dwStyle, FALSE, dwExStyle);		// Adjust Window To True Requestes Size
 
-	if (!(hWnd=CreateWindowEx(	dwExStyle,						// Extended Style For The Window
+	if (nullptr == (g_hWnd=CreateWindowEx(dwExStyle,			// Extended Style For The Window
 								TEXT("OpenGL"),						// Class Name
 								UTFConverter(title).c_wstr(),							// Window Title
 								WS_CLIPSIBLINGS |				// Required Window Style
@@ -670,10 +672,10 @@ BOOL CreateGLWindow(const char* title, int width, int height, int bits, bool ful
 								0, 0,							// Window Position
 								WindowRect.right-WindowRect.left, // Calc adjusted Window Width
 								WindowRect.bottom-WindowRect.top, // Calc adjustes Window Height
-								NULL,							// No Parent Window
-								NULL,							// No Menu
-								hInstance,						// Instance
-								NULL )))						// Don't pass anything To WM_CREATE
+								nullptr,						// No Parent Window
+								nullptr,						// No Menu
+								g_hInstance,					// Instance
+								nullptr )))						// Don't pass anything To WM_CREATE
 	{
 		abortGLInit("Window Creation Error.");
 		return FALSE;
@@ -701,13 +703,13 @@ BOOL CreateGLWindow(const char* title, int width, int height, int bits, bool ful
 		0, 0, 0											// Layer Masks Ignored
 	};
 
-	if (!(hDC=GetDC(hWnd)))								// Did we get the Device Context?
+	if (nullptr == (hDC=GetDC(g_hWnd)))					// Did we get the Device Context?
 	{
 		abortGLInit("Can't Create A GL Device Context.");
 		return FALSE;
 	}
 
-	if (!(PixelFormat=ChoosePixelFormat(hDC, &pfd)))	// Did We Find a matching pixel Format?
+	if (0 == (PixelFormat=ChoosePixelFormat(hDC, &pfd))) // Did We Find a matching pixel Format?
 	{
 		abortGLInit("Can't Find Suitable PixelFormat");
 		return FALSE;
@@ -719,7 +721,7 @@ BOOL CreateGLWindow(const char* title, int width, int height, int bits, bool ful
 		return FALSE;
 	}
 
-	if (!(hRC=wglCreateContext(hDC)))
+	if (nullptr == (hRC=wglCreateContext(hDC))) 
 	{
 		abortGLInit("Can't Create A GL Rendering Context.");
 		return FALSE;
@@ -733,9 +735,9 @@ BOOL CreateGLWindow(const char* title, int width, int height, int bits, bool ful
 
 	//// *** everything okay ***
 
-	ShowWindow(hWnd, SW_SHOW);		// Show The Window
-	SetForegroundWindow(hWnd);		// Slightly Higher Prio
-	SetFocus(hWnd);					// Sets Keyboard Focus To The Window
+	ShowWindow(g_hWnd, SW_SHOW);	// Show The Window
+	SetForegroundWindow(g_hWnd);	// Slightly Higher Prio
+	SetFocus(g_hWnd);				// Sets Keyboard Focus To The Window
 	ReSizeGLScene(width, height);	// Set Up Our Perspective GL Screen
 
 	if (!InitGL())
@@ -753,7 +755,7 @@ void cleanup()
 
 	destroyAILogger();
 
-	if (hWnd)
+	if (g_hWnd)
 		KillGLWindow();
 };
 
@@ -818,12 +820,12 @@ LRESULT CALLBACK WndProc(HWND hWnd,				// Handles for this Window
 	return DefWindowProc(hWnd, uMsg, wParam, lParam);
 }
 
-int WINAPI WinMain( HINSTANCE hInstance,         // The instance
-				   HINSTANCE hPrevInstance,      // Previous instance
-				   LPSTR lpCmdLine,              // Command Line Parameters
-				   int nShowCmd )                // Window Show State
+int WINAPI WinMain( HINSTANCE /*hInstance*/,     // The instance
+				   HINSTANCE /*hPrevInstance*/,  // Previous instance
+				   LPSTR /*lpCmdLine*/,          // Command Line Parameters
+				   int /*nShowCmd*/ )            // Window Show State
 {
-	MSG msg;
+	MSG msg = {};
 	BOOL done=FALSE;
 
 	createAILogger();
@@ -832,7 +834,7 @@ int WINAPI WinMain( HINSTANCE hInstance,         // The instance
 	// Check the command line for an override file path.
 	int argc;
 	LPWSTR* argv = CommandLineToArgvW(GetCommandLineW(), &argc);
-	if (argv != NULL && argc > 1)
+	if (argv != nullptr && argc > 1)
 	{
 		std::wstring modelpathW(argv[1]);
 		modelpath = UTFConverter(modelpathW).str();
@@ -846,7 +848,7 @@ int WINAPI WinMain( HINSTANCE hInstance,         // The instance
 
 	logInfo("=============== Post Import ====================");
 
-	if (MessageBox(NULL, TEXT("Would You Like To Run In Fullscreen Mode?"), TEXT("Start Fullscreen?"), MB_YESNO|MB_ICONEXCLAMATION)==IDNO)
+	if (MessageBox(nullptr, TEXT("Would You Like To Run In Fullscreen Mode?"), TEXT("Start Fullscreen?"), MB_YESNO|MB_ICONEXCLAMATION)==IDNO)
 	{
 		fullscreen=FALSE;
 	}
@@ -859,7 +861,7 @@ int WINAPI WinMain( HINSTANCE hInstance,         // The instance
 
 	while(!done)	// Game Loop
 	{
-		if (PeekMessage(&msg, NULL, 0,0, PM_REMOVE))
+		if (PeekMessage(&msg, nullptr, 0,0, PM_REMOVE))
 		{
 			if (msg.message==WM_QUIT)
 			{

test/CMakeLists.txt

@@ -61,6 +61,14 @@ SET( COMMON
   unit/utIssues.cpp
   unit/utAnim.cpp
   unit/AssimpAPITest.cpp
+  unit/AssimpAPITest_aiMatrix3x3.cpp
+  unit/AssimpAPITest_aiMatrix4x4.cpp
+  unit/AssimpAPITest_aiQuaternion.cpp
+  unit/AssimpAPITest_aiVector2D.cpp
+  unit/AssimpAPITest_aiVector3D.cpp
+  unit/MathTest.cpp
+  unit/MathTest.h
+  unit/RandomNumberGeneration.h
   unit/utBatchLoader.cpp
   unit/utDefaultIOStream.cpp
   unit/utFastAtof.cpp
@@ -76,10 +84,12 @@ SET( COMMON
   unit/utProfiler.cpp
   unit/utSharedPPData.cpp
   unit/utStringUtils.cpp
+  unit/Common/uiScene.cpp
   unit/Common/utLineSplitter.cpp
 )
 
 SET( IMPORTERS
+  unit/ImportExport/Assxml/utAssxmlImportExport.cpp
   unit/utLWSImportExport.cpp
   unit/utLWOImportExport.cpp
   unit/utSMDImportExport.cpp
@@ -136,6 +146,9 @@ SET( IMPORTERS
   unit/ImportExport/MDL/utMDLImporter_HL1_ImportSettings.cpp
   unit/ImportExport/MDL/utMDLImporter_HL1_Materials.cpp
   unit/ImportExport/MDL/utMDLImporter_HL1_Nodes.cpp
+  #unit/ImportExport/IRR/utIrrImportExport.cpp
+  unit/ImportExport/RAW/utRAWImportExport.cpp
+  unit/ImportExport/Terragen/utTerragenImportExport.cpp
 )
 
 SET( MATERIAL

test/models/glTF2/RecursiveNodes/RecursiveNodes.gltf

@@ -0,0 +1,25 @@
+{
+    "asset": {
+        "version": "2.0"
+    },
+    "scene": 0,
+    "scenes": [
+        {
+            "nodes": [
+                0
+            ]
+        }
+    ],
+    "nodes": [
+        {
+            "children": [
+                1
+            ]
+        },
+        {
+            "children": [
+                0
+            ]
+        }
+    ]
+}

test/unit/AssimpAPITest_aiMatrix3x3.cpp

@@ -0,0 +1,151 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2020, 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 "UnitTestPCH.h"
+#include "MathTest.h"
+
+using namespace Assimp;
+
+class AssimpAPITest_aiMatrix3x3 : public AssimpMathTest {
+protected:
+    virtual void SetUp() {
+        result_c = result_cpp = aiMatrix3x3();
+    }
+
+    aiMatrix3x3 result_c, result_cpp;
+};
+
+TEST_F(AssimpAPITest_aiMatrix3x3, aiIdentityMatrix3Test) {
+    // Force a non-identity matrix.
+    result_c = aiMatrix3x3(0,0,0,0,0,0,0,0,0);
+    aiIdentityMatrix3(&result_c);
+    EXPECT_EQ(result_cpp, result_c);
+}
+
+TEST_F(AssimpAPITest_aiMatrix3x3, aiMatrix3FromMatrix4Test) {
+    const auto m = random_mat4();
+    result_cpp = aiMatrix3x3(m);
+    aiMatrix3FromMatrix4(&result_c, &m);
+    EXPECT_EQ(result_cpp, result_c);
+}
+
+TEST_F(AssimpAPITest_aiMatrix3x3, aiMatrix3FromQuaternionTest) {
+    const auto q = random_quat();
+    result_cpp = q.GetMatrix();
+    aiMatrix3FromQuaternion(&result_c, &q);
+    EXPECT_EQ(result_cpp, result_c);
+}
+
+TEST_F(AssimpAPITest_aiMatrix3x3, aiMatrix3AreEqualTest) {
+    result_c = result_cpp = random_mat3();
+    EXPECT_EQ(result_cpp == result_c,
+        (bool)aiMatrix3AreEqual(&result_cpp, &result_c));
+}
+
+TEST_F(AssimpAPITest_aiMatrix3x3, aiMatrix3AreEqualEpsilonTest) {
+    result_c = result_cpp = random_mat3();
+    EXPECT_EQ(result_cpp.Equal(result_c, Epsilon),
+        (bool)aiMatrix3AreEqualEpsilon(&result_cpp, &result_c, Epsilon));
+}
+
+TEST_F(AssimpAPITest_aiMatrix3x3, aiMultiplyMatrix3Test) {
+    const auto m = random_mat3();
+    result_c = result_cpp = random_mat3();
+    result_cpp *= m;
+    aiMultiplyMatrix3(&result_c, &m);
+    EXPECT_EQ(result_cpp, result_c);
+}
+
+TEST_F(AssimpAPITest_aiMatrix3x3, aiTransposeMatrix3Test) {
+    result_c = result_cpp = random_mat3();
+    result_cpp.Transpose();
+    aiTransposeMatrix3(&result_c);
+    EXPECT_EQ(result_cpp, result_c);
+}
+
+TEST_F(AssimpAPITest_aiMatrix3x3, aiMatrix3InverseTest) {
+    // Use a predetermined matrix to prevent arbitrary
+    // cases where it could have a null determinant.
+    result_c = result_cpp = aiMatrix3x3(
+        5, 2, 7,
+        4, 6, 9,
+        1, 8, 3);
+    result_cpp.Inverse();
+    aiMatrix3Inverse(&result_c);
+    EXPECT_EQ(result_cpp, result_c);
+}
+
+TEST_F(AssimpAPITest_aiMatrix3x3, aiMatrix3DeterminantTest) {
+    result_c = result_cpp = random_mat3();
+    EXPECT_EQ(result_cpp.Determinant(),
+        aiMatrix3Determinant(&result_c));
+}
+
+TEST_F(AssimpAPITest_aiMatrix3x3, aiMatrix3RotationZTest) {
+    const float angle(RandPI.next());
+    aiMatrix3x3::RotationZ(angle, result_cpp);
+    aiMatrix3RotationZ(&result_c, angle);
+    EXPECT_EQ(result_cpp, result_c);
+}
+
+TEST_F(AssimpAPITest_aiMatrix3x3, aiMatrix3FromRotationAroundAxisTest) {
+    const float angle(RandPI.next());
+    const auto axis = random_unit_vec3();
+    aiMatrix3x3::Rotation(angle, axis, result_cpp);
+    aiMatrix3FromRotationAroundAxis(&result_c, &axis, angle);
+    EXPECT_EQ(result_cpp, result_c);
+}
+
+TEST_F(AssimpAPITest_aiMatrix3x3, aiMatrix3TranslationTest) {
+    const auto axis = random_vec2();
+    aiMatrix3x3::Translation(axis, result_cpp);
+    aiMatrix3Translation(&result_c, &axis);
+    EXPECT_EQ(result_cpp, result_c);
+}
+
+TEST_F(AssimpAPITest_aiMatrix3x3, aiMatrix3FromToTest) {
+    // Use predetermined vectors to prevent running into division by zero.
+    const auto from = aiVector3D(1,2,1).Normalize(), to = aiVector3D(-1,1,1).Normalize();
+    aiMatrix3x3::FromToMatrix(from, to, result_cpp);
+    aiMatrix3FromTo(&result_c, &from, &to);
+    EXPECT_EQ(result_cpp, result_c);
+}

test/unit/AssimpAPITest_aiMatrix4x4.cpp

@@ -0,0 +1,259 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2020, 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 "UnitTestPCH.h"
+#include "MathTest.h"
+
+using namespace Assimp;
+
+class AssimpAPITest_aiMatrix4x4 : public AssimpMathTest {
+protected:
+    virtual void SetUp() {
+        result_c = result_cpp = aiMatrix4x4();
+    }
+
+    /* Generates a predetermined transformation matrix to use
+       for the aiDecompose functions to prevent running into
+       division by zero. */
+    aiMatrix4x4 get_predetermined_transformation_matrix_for_decomposition() const {
+        aiMatrix4x4 t, r;
+        aiMatrix4x4::Translation(aiVector3D(14,-25,-8), t);
+        aiMatrix4x4::Rotation(Math::PI<float>() / 4.0f, aiVector3D(1).Normalize(), r);
+        return t * r;
+    }
+
+    aiMatrix4x4 result_c, result_cpp;
+};
+
+TEST_F(AssimpAPITest_aiMatrix4x4, aiIdentityMatrix4Test) {
+    // Force a non-identity matrix.
+    result_c = aiMatrix4x4(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0);
+    aiIdentityMatrix4(&result_c);
+    EXPECT_EQ(result_cpp, result_c);
+}
+
+TEST_F(AssimpAPITest_aiMatrix4x4, aiMatrix4FromMatrix3Test) {
+    aiMatrix3x3 m = random_mat3();
+    result_cpp = aiMatrix4x4(m);
+    aiMatrix4FromMatrix3(&result_c, &m);
+    EXPECT_EQ(result_cpp, result_c);
+}
+
+TEST_F(AssimpAPITest_aiMatrix4x4, aiMatrix4FromScalingQuaternionPositionTest) {
+    const aiVector3D s = random_vec3();
+    const aiQuaternion q = random_quat();
+    const aiVector3D t = random_vec3();
+    result_cpp = aiMatrix4x4(s, q, t);
+    aiMatrix4FromScalingQuaternionPosition(&result_c, &s, &q, &t);
+    EXPECT_EQ(result_cpp, result_c);
+}
+
+TEST_F(AssimpAPITest_aiMatrix4x4, aiMatrix4AddTest) {
+    const aiMatrix4x4 temp = random_mat4();
+    result_c = result_cpp = random_mat4();
+    result_cpp = result_cpp + temp;
+    aiMatrix4Add(&result_c, &temp);
+    EXPECT_EQ(result_cpp, result_c);
+}
+
+TEST_F(AssimpAPITest_aiMatrix4x4, aiMatrix4AreEqualTest) {
+    result_c = result_cpp = random_mat4();
+    EXPECT_EQ(result_cpp == result_c,
+        (bool)aiMatrix4AreEqual(&result_cpp, &result_c));
+}
+
+TEST_F(AssimpAPITest_aiMatrix4x4, aiMatrix4AreEqualEpsilonTest) {
+    result_c = result_cpp = random_mat4();
+    EXPECT_EQ(result_cpp.Equal(result_c, Epsilon),
+        (bool)aiMatrix4AreEqualEpsilon(&result_cpp, &result_c, Epsilon));
+}
+
+TEST_F(AssimpAPITest_aiMatrix4x4, aiMultiplyMatrix4Test) {
+    const auto m = random_mat4();
+    result_c = result_cpp = random_mat4();
+    result_cpp *= m;
+    aiMultiplyMatrix4(&result_c, &m);
+    EXPECT_EQ(result_cpp, result_c);
+}
+
+TEST_F(AssimpAPITest_aiMatrix4x4, aiTransposeMatrix4Test) {
+    result_c = result_cpp = random_mat4();
+    result_cpp.Transpose();
+    aiTransposeMatrix4(&result_c);
+    EXPECT_EQ(result_cpp, result_c);
+}
+
+TEST_F(AssimpAPITest_aiMatrix4x4, aiMatrix4InverseTest) {
+    // Use a predetermined matrix to prevent arbitrary
+    // cases where it could have a null determinant.
+    result_c = result_cpp = aiMatrix4x4(
+        6, 10, 15, 3,
+        14, 2, 12, 8,
+        9, 13, 5, 16,
+        4, 7, 11, 1);
+    result_cpp.Inverse();
+    aiMatrix4Inverse(&result_c);
+    EXPECT_EQ(result_cpp, result_c);
+}
+
+TEST_F(AssimpAPITest_aiMatrix4x4, aiMatrix4DeterminantTest) {
+    result_c = result_cpp = random_mat4();
+    EXPECT_EQ(result_cpp.Determinant(),
+        aiMatrix4Determinant(&result_c));
+}
+
+TEST_F(AssimpAPITest_aiMatrix4x4, aiMatrix4IsIdentityTest) {
+    EXPECT_EQ(result_cpp.IsIdentity(),
+        (bool)aiMatrix4IsIdentity(&result_c));
+}
+
+TEST_F(AssimpAPITest_aiMatrix4x4, aiDecomposeMatrixTest) {
+    aiVector3D scaling_c, scaling_cpp,
+        position_c, position_cpp;
+    aiQuaternion rotation_c, rotation_cpp;
+
+    result_c = result_cpp = get_predetermined_transformation_matrix_for_decomposition();
+    result_cpp.Decompose(scaling_cpp, rotation_cpp, position_cpp);
+    aiDecomposeMatrix(&result_c, &scaling_c, &rotation_c, &position_c);
+    EXPECT_EQ(scaling_cpp, scaling_c);
+    EXPECT_EQ(position_cpp, position_c);
+    EXPECT_EQ(rotation_cpp, rotation_c);
+}
+
+TEST_F(AssimpAPITest_aiMatrix4x4, aiMatrix4DecomposeIntoScalingEulerAnglesPositionTest) {
+    aiVector3D scaling_c, scaling_cpp,
+        rotation_c, rotation_cpp,
+        position_c, position_cpp;
+
+    result_c = result_cpp = get_predetermined_transformation_matrix_for_decomposition();
+    result_cpp.Decompose(scaling_cpp, rotation_cpp, position_cpp);
+    aiMatrix4DecomposeIntoScalingEulerAnglesPosition(&result_c, &scaling_c, &rotation_c, &position_c);
+    EXPECT_EQ(scaling_cpp, scaling_c);
+    EXPECT_EQ(position_cpp, position_c);
+    EXPECT_EQ(rotation_cpp, rotation_c);
+}
+
+TEST_F(AssimpAPITest_aiMatrix4x4, aiMatrix4DecomposeIntoScalingAxisAnglePositionTest) {
+    aiVector3D scaling_c, scaling_cpp,
+        axis_c, axis_cpp,
+        position_c, position_cpp;
+    float angle_c, angle_cpp;
+
+    result_c = result_cpp = get_predetermined_transformation_matrix_for_decomposition();
+    result_cpp.Decompose(scaling_cpp, axis_cpp, angle_cpp, position_cpp);
+    aiMatrix4DecomposeIntoScalingAxisAnglePosition(&result_c, &scaling_c, &axis_c, &angle_c, &position_c);
+    EXPECT_EQ(scaling_cpp, scaling_c);
+    EXPECT_EQ(axis_cpp, axis_c);
+    EXPECT_EQ(angle_cpp, angle_c);
+    EXPECT_EQ(position_cpp, position_c);
+}
+
+TEST_F(AssimpAPITest_aiMatrix4x4, aiMatrix4DecomposeNoScalingTest) {
+    aiVector3D position_c, position_cpp;
+    aiQuaternion rotation_c, rotation_cpp;
+
+    result_c = result_cpp = get_predetermined_transformation_matrix_for_decomposition();
+    result_cpp.DecomposeNoScaling(rotation_cpp, position_cpp);
+    aiMatrix4DecomposeNoScaling(&result_c, &rotation_c, &position_c);
+    EXPECT_EQ(position_cpp, position_c);
+    EXPECT_EQ(rotation_cpp, rotation_c);
+}
+
+TEST_F(AssimpAPITest_aiMatrix4x4, aiMatrix4FromEulerAnglesTest) {
+    const float x(RandPI.next()),
+        y(RandPI.next()),
+        z(RandPI.next());
+    result_cpp.FromEulerAnglesXYZ(x, y, z);
+    aiMatrix4FromEulerAngles(&result_c, x, y, z);
+    EXPECT_EQ(result_cpp, result_c);
+}
+
+TEST_F(AssimpAPITest_aiMatrix4x4, aiMatrix4RotationXTest) {
+    const float angle(RandPI.next());
+    aiMatrix4x4::RotationX(angle, result_cpp);
+    aiMatrix4RotationX(&result_c, angle);
+    EXPECT_EQ(result_cpp, result_c);
+}
+
+TEST_F(AssimpAPITest_aiMatrix4x4, aiMatrix4RotationYTest) {
+    const float angle(RandPI.next());
+    aiMatrix4x4::RotationY(angle, result_cpp);
+    aiMatrix4RotationY(&result_c, angle);
+    EXPECT_EQ(result_cpp, result_c);
+}
+
+TEST_F(AssimpAPITest_aiMatrix4x4, aiMatrix4RotationZTest) {
+    const float angle(RandPI.next());
+    aiMatrix4x4::RotationZ(angle, result_cpp);
+    aiMatrix4RotationZ(&result_c, angle);
+    EXPECT_EQ(result_cpp, result_c);
+}
+
+TEST_F(AssimpAPITest_aiMatrix4x4, aiMatrix4FromRotationAroundAxisTest) {
+    const float angle(RandPI.next());
+    const auto axis = random_unit_vec3();
+    aiMatrix4x4::Rotation(angle, axis, result_cpp);
+    aiMatrix4FromRotationAroundAxis(&result_c, &axis, angle);
+    EXPECT_EQ(result_cpp, result_c);
+}
+
+TEST_F(AssimpAPITest_aiMatrix4x4, aiMatrix4TranslationTest) {
+    const auto axis = random_vec3();
+    aiMatrix4x4::Translation(axis, result_cpp);
+    aiMatrix4Translation(&result_c, &axis);
+    EXPECT_EQ(result_cpp, result_c);
+}
+
+TEST_F(AssimpAPITest_aiMatrix4x4, aiMatrix4ScalingTest) {
+    const auto scaling = random_vec3();
+    aiMatrix4x4::Scaling(scaling, result_cpp);
+    aiMatrix4Scaling(&result_c, &scaling);
+    EXPECT_EQ(result_cpp, result_c);
+}
+
+TEST_F(AssimpAPITest_aiMatrix4x4, aiMatrix4FromToTest) {
+    // Use predetermined vectors to prevent running into division by zero.
+    const auto from = aiVector3D(1,2,1).Normalize(), to = aiVector3D(-1,1,1).Normalize();
+    aiMatrix4x4::FromToMatrix(from, to, result_cpp);
+    aiMatrix4FromTo(&result_c, &from, &to);
+    EXPECT_EQ(result_cpp, result_c);
+}

test/unit/AssimpAPITest_aiQuaternion.cpp

@@ -0,0 +1,135 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2020, 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 "UnitTestPCH.h"
+#include "MathTest.h"
+
+using namespace Assimp;
+
+class AssimpAPITest_aiQuaternion : public AssimpMathTest {
+protected:
+    virtual void SetUp() {
+        result_c = result_cpp = aiQuaternion();
+    }
+
+    aiQuaternion result_c, result_cpp;
+};
+
+TEST_F(AssimpAPITest_aiQuaternion, aiCreateQuaternionFromMatrixTest) {
+    // Use a predetermined transformation matrix
+    // to prevent running into division by zero.
+    aiMatrix3x3 m, r;
+    aiMatrix3x3::Translation(aiVector2D(14,-25), m);
+    aiMatrix3x3::RotationZ(Math::PI<float>() / 4.0f, r);
+    m = m * r;
+
+    result_cpp = aiQuaternion(m);
+    aiCreateQuaternionFromMatrix(&result_c, &m);
+    EXPECT_EQ(result_cpp, result_c);
+}
+
+TEST_F(AssimpAPITest_aiQuaternion, aiQuaternionFromEulerAnglesTest) {
+    const float x(RandPI.next()),
+        y(RandPI.next()),
+        z(RandPI.next());
+    result_cpp = aiQuaternion(x, y, z);
+    aiQuaternionFromEulerAngles(&result_c, x, y, z);
+    EXPECT_EQ(result_cpp, result_c);
+}
+
+TEST_F(AssimpAPITest_aiQuaternion, aiQuaternionFromAxisAngleTest) {
+    const float angle(RandPI.next());
+    const aiVector3D axis(random_unit_vec3());
+    result_cpp = aiQuaternion(axis, angle);
+    aiQuaternionFromAxisAngle(&result_c, &axis, angle);
+    EXPECT_EQ(result_cpp, result_c);
+}
+
+TEST_F(AssimpAPITest_aiQuaternion, aiQuaternionFromNormalizedQuaternionTest) {
+    const auto qvec3 = random_unit_vec3();
+    result_cpp = aiQuaternion(qvec3);
+    aiQuaternionFromNormalizedQuaternion(&result_c, &qvec3);
+    EXPECT_EQ(result_cpp, result_c);
+}
+
+TEST_F(AssimpAPITest_aiQuaternion, aiQuaternionAreEqualTest) {
+    result_c = result_cpp = random_quat();
+    EXPECT_EQ(result_cpp == result_c,
+        (bool)aiQuaternionAreEqual(&result_cpp, &result_c));
+}
+
+TEST_F(AssimpAPITest_aiQuaternion, aiQuaternionAreEqualEpsilonTest) {
+    result_c = result_cpp = random_quat();
+    EXPECT_EQ(result_cpp.Equal(result_c, Epsilon),
+        (bool)aiQuaternionAreEqualEpsilon(&result_cpp, &result_c, Epsilon));
+}
+
+TEST_F(AssimpAPITest_aiQuaternion, aiQuaternionNormalizeTest) {
+    result_c = result_cpp = random_quat();
+    aiQuaternionNormalize(&result_c);
+    EXPECT_EQ(result_cpp.Normalize(), result_c);
+}
+
+TEST_F(AssimpAPITest_aiQuaternion, aiQuaternionConjugateTest) {
+    result_c = result_cpp = random_quat();
+    aiQuaternionConjugate(&result_c);
+    EXPECT_EQ(result_cpp.Conjugate(), result_c);
+}
+
+TEST_F(AssimpAPITest_aiQuaternion, aiQuaternionMultiplyTest) {
+    const aiQuaternion temp = random_quat();
+    result_c = result_cpp = random_quat();
+    result_cpp = result_cpp * temp;
+    aiQuaternionMultiply(&result_c, &temp);
+    EXPECT_EQ(result_cpp, result_c);
+}
+
+TEST_F(AssimpAPITest_aiQuaternion, aiQuaternionInterpolateTest) {
+    // Use predetermined quaternions to prevent division by zero
+    // during slerp calculations.
+    const float INTERPOLATION(0.5f);
+    const auto q1 = aiQuaternion(aiVector3D(-1,1,1).Normalize(), Math::PI<float>() / 4.0f);
+    const auto q2 = aiQuaternion(aiVector3D(1,2,1).Normalize(), Math::PI<float>() / 2.0f);
+    aiQuaternion::Interpolate(result_cpp, q1, q2, INTERPOLATION);
+    aiQuaternionInterpolate(&result_c, &q1, &q2, INTERPOLATION);
+    EXPECT_EQ(result_cpp, result_c);
+}

test/unit/AssimpAPITest_aiVector2D.cpp

@@ -0,0 +1,140 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2020, 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 "UnitTestPCH.h"
+#include "MathTest.h"
+
+using namespace Assimp;
+
+class AssimpAPITest_aiVector2D : public AssimpMathTest {
+protected:
+    virtual void SetUp() {
+        result_c = result_cpp = aiVector2D();
+        temp = random_vec2(); // Generates a random 2D vector != null vector.
+    }
+
+    aiVector2D result_c, result_cpp, temp;
+};
+
+TEST_F(AssimpAPITest_aiVector2D, aiVector2AreEqualTest) {
+    result_c = result_cpp = random_vec2();
+    EXPECT_EQ(result_cpp == result_c,
+        (bool)aiVector2AreEqual(&result_cpp, &result_c));
+}
+
+TEST_F(AssimpAPITest_aiVector2D, aiVector2AreEqualEpsilonTest) {
+    result_c = result_cpp = random_vec2();
+    EXPECT_EQ(result_cpp.Equal(result_c, Epsilon),
+        (bool)aiVector2AreEqualEpsilon(&result_cpp, &result_c, Epsilon));
+}
+
+TEST_F(AssimpAPITest_aiVector2D, aiVector2AddTest) {
+    result_c = result_cpp = random_vec2();
+    result_cpp += temp;
+    aiVector2Add(&result_c, &temp);
+    EXPECT_EQ(result_cpp, result_c);
+}
+
+TEST_F(AssimpAPITest_aiVector2D, aiVector2SubtractTest) {
+    result_c = result_cpp = random_vec2();
+    result_cpp -= temp;
+    aiVector2Subtract(&result_c, &temp);
+    EXPECT_EQ(result_cpp, result_c);
+}
+
+TEST_F(AssimpAPITest_aiVector2D, aiVector2ScaleTest) {
+    const float FACTOR = RandNonZero.next();
+    result_c = result_cpp = random_vec2();
+    result_cpp *= FACTOR;
+    aiVector2Scale(&result_c, FACTOR);
+    EXPECT_EQ(result_cpp, result_c);
+}
+
+TEST_F(AssimpAPITest_aiVector2D, aiVector2SymMulTest) {
+    result_c = result_cpp = random_vec2();
+    result_cpp = result_cpp.SymMul(temp);
+    aiVector2SymMul(&result_c, &temp);
+    EXPECT_EQ(result_cpp, result_c);
+}
+
+TEST_F(AssimpAPITest_aiVector2D, aiVector2DivideByScalarTest) {
+    const float DIVISOR = RandNonZero.next();
+    result_c = result_cpp = random_vec2();
+    result_cpp /= DIVISOR;
+    aiVector2DivideByScalar(&result_c, DIVISOR);
+    EXPECT_EQ(result_cpp, result_c);
+}
+
+TEST_F(AssimpAPITest_aiVector2D, aiVector2DivideByVectorTest) {
+    result_c = result_cpp = random_vec2();
+    result_cpp = result_cpp / temp;
+    aiVector2DivideByVector(&result_c, &temp);
+    EXPECT_EQ(result_cpp, result_c);
+}
+
+TEST_F(AssimpAPITest_aiVector2D, aiVector2LengthTest) {
+    result_c = result_cpp = random_vec2();
+    EXPECT_EQ(result_cpp.Length(), aiVector2Length(&result_c));
+}
+
+TEST_F(AssimpAPITest_aiVector2D, aiVector2SquareLengthTest) {
+    result_c = result_cpp = random_vec2();
+    EXPECT_EQ(result_cpp.SquareLength(), aiVector2SquareLength(&result_c));
+}
+
+TEST_F(AssimpAPITest_aiVector2D, aiVector2NegateTest) {
+    result_c = result_cpp = random_vec2();
+    aiVector2Negate(&result_c);
+    EXPECT_EQ(-result_cpp, result_c);
+}
+
+TEST_F(AssimpAPITest_aiVector2D, aiVector2DotProductTest) {
+    result_c = result_cpp = random_vec2();
+    EXPECT_EQ(result_cpp * result_c,
+        aiVector2DotProduct(&result_cpp, &result_c));
+}
+
+TEST_F(AssimpAPITest_aiVector2D, aiVector2NormalizeTest) {
+    result_c = result_cpp = random_vec2();
+    aiVector2Normalize(&result_c);
+    EXPECT_EQ(result_cpp.Normalize(), result_c);
+}

test/unit/AssimpAPITest_aiVector3D.cpp

@@ -0,0 +1,185 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2020, 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 "UnitTestPCH.h"
+#include "MathTest.h"
+
+using namespace Assimp;
+
+class AssimpAPITest_aiVector3D : public AssimpMathTest {
+protected:
+    virtual void SetUp() {
+        result_c = result_cpp = aiVector3D();
+        temp = random_vec3(); // Generates a random 3D vector != null vector.
+    }
+
+    aiVector3D result_c, result_cpp, temp;
+};
+
+TEST_F(AssimpAPITest_aiVector3D, aiVector3AreEqualTest) {
+    result_c = result_cpp = random_vec3();
+    EXPECT_EQ(result_cpp == result_c,
+        (bool)aiVector3AreEqual(&result_cpp, &result_c));
+}
+
+TEST_F(AssimpAPITest_aiVector3D, aiVector3AreEqualEpsilonTest) {
+    result_c = result_cpp = random_vec3();
+    EXPECT_EQ(result_cpp.Equal(result_c, Epsilon),
+        (bool)aiVector3AreEqualEpsilon(&result_cpp, &result_c, Epsilon));
+}
+
+TEST_F(AssimpAPITest_aiVector3D, aiVector3LessThanTest) {
+    result_c = result_cpp = random_vec3();
+    EXPECT_EQ(result_cpp < temp,
+        (bool)aiVector3LessThan(&result_c, &temp));
+}
+
+TEST_F(AssimpAPITest_aiVector3D, aiVector3AddTest) {
+    result_c = result_cpp = random_vec3();
+    result_cpp += temp;
+    aiVector3Add(&result_c, &temp);
+    EXPECT_EQ(result_cpp, result_c);
+}
+
+TEST_F(AssimpAPITest_aiVector3D, aiVector3SubtractTest) {
+    result_c = result_cpp = random_vec3();
+    result_cpp -= temp;
+    aiVector3Subtract(&result_c, &temp);
+    EXPECT_EQ(result_cpp, result_c);
+}
+
+TEST_F(AssimpAPITest_aiVector3D, aiVector3ScaleTest) {
+    const float FACTOR = RandNonZero.next();
+    result_c = result_cpp = random_vec3();
+    result_cpp *= FACTOR;
+    aiVector3Scale(&result_c, FACTOR);
+    EXPECT_EQ(result_cpp, result_c);
+}
+
+TEST_F(AssimpAPITest_aiVector3D, aiVector3SymMulTest) {
+    result_c = result_cpp = random_vec3();
+    result_cpp = result_cpp.SymMul(temp);
+    aiVector3SymMul(&result_c, &temp);
+    EXPECT_EQ(result_cpp, result_c);
+}
+
+TEST_F(AssimpAPITest_aiVector3D, aiVector3DivideByScalarTest) {
+    const float DIVISOR = RandNonZero.next();
+    result_c = result_cpp = random_vec3();
+    result_cpp /= DIVISOR;
+    aiVector3DivideByScalar(&result_c, DIVISOR);
+    EXPECT_EQ(result_cpp, result_c);
+}
+
+TEST_F(AssimpAPITest_aiVector3D, aiVector3DivideByVectorTest) {
+    result_c = result_cpp = random_vec3();
+    result_cpp = result_cpp / temp;
+    aiVector3DivideByVector(&result_c, &temp);
+    EXPECT_EQ(result_cpp, result_c);
+}
+
+TEST_F(AssimpAPITest_aiVector3D, aiVector3LengthTest) {
+    result_c = result_cpp = random_vec3();
+    EXPECT_EQ(result_cpp.Length(), aiVector3Length(&result_c));
+}
+
+TEST_F(AssimpAPITest_aiVector3D, aiVector3SquareLengthTest) {
+    result_c = result_cpp = random_vec3();
+    EXPECT_EQ(result_cpp.SquareLength(), aiVector3SquareLength(&result_c));
+}
+
+TEST_F(AssimpAPITest_aiVector3D, aiVector3NegateTest) {
+    result_c = result_cpp = random_vec3();
+    aiVector3Negate(&result_c);
+    EXPECT_EQ(-result_cpp, result_c);
+}
+
+TEST_F(AssimpAPITest_aiVector3D, aiVector3DotProductTest) {
+    result_c = result_cpp = random_vec3();
+    EXPECT_EQ(result_cpp * result_c,
+        aiVector3DotProduct(&result_cpp, &result_c));
+}
+
+TEST_F(AssimpAPITest_aiVector3D, aiVector3CrossProductTest) {
+    result_c = result_cpp = random_vec3();
+    result_cpp = result_cpp ^ temp;
+    aiVector3CrossProduct(&result_c, &result_c, &temp);
+    EXPECT_EQ(result_cpp, result_c);
+}
+
+TEST_F(AssimpAPITest_aiVector3D, aiVector3NormalizeTest) {
+    result_c = result_cpp = random_vec3();
+    aiVector3Normalize(&result_c);
+    EXPECT_EQ(result_cpp.Normalize(), result_c);
+}
+
+TEST_F(AssimpAPITest_aiVector3D, aiVector3NormalizeSafeTest) {
+    result_c = result_cpp = random_vec3();
+    aiVector3NormalizeSafe(&result_c);
+    EXPECT_EQ(result_cpp.NormalizeSafe(), result_c);
+}
+
+TEST_F(AssimpAPITest_aiVector3D, aiVector3RotateByQuaternionTest) {
+    aiVector3D v_c, v_cpp;
+    v_c = v_cpp = random_vec3();
+    const auto q = random_quat();
+    aiVector3RotateByQuaternion(&v_c, &q);
+    EXPECT_EQ(q.Rotate(v_cpp), v_c);
+}
+
+TEST_F(AssimpAPITest_aiVector3D, aiTransformVecByMatrix3Test) {
+    const auto m = random_mat3();
+    aiVector3D v_c, v_cpp;
+    v_c = v_cpp = random_vec3();
+    v_cpp *= m;
+    aiTransformVecByMatrix3(&v_c, &m);
+    EXPECT_EQ(v_cpp, v_c);
+}
+
+TEST_F(AssimpAPITest_aiVector3D, aiTransformVecByMatrix4Test) {
+    const auto m = random_mat4();
+    aiVector3D v_c, v_cpp;
+    v_c = v_cpp = random_vec3();
+    v_cpp *= m;
+    aiTransformVecByMatrix4(&v_c, &m);
+    EXPECT_EQ(v_cpp, v_c);
+}

test/unit/Common/uiScene.cpp

@@ -0,0 +1,93 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2020, 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 "UnitTestPCH.h"
+
+#include <assimp/scene.h>
+
+
+using namespace Assimp;
+
+class utScene : public ::testing::Test {
+protected:
+	aiScene *scene;
+
+    void SetUp() override {
+		scene = new aiScene;
+    }
+
+    void TearDown() override {
+		delete scene;
+		scene = nullptr;
+    }
+};
+
+TEST_F(utScene, findNodeTest) {
+	scene->mRootNode = new aiNode();
+	scene->mRootNode->mName.Set("test");
+	aiNode *child = new aiNode;
+	child->mName.Set("child");
+	scene->mRootNode->addChildren(1, &child);
+	aiNode *found = scene->mRootNode->FindNode("child");
+	EXPECT_EQ(child, found);
+}
+
+TEST_F(utScene, sceneHasContentTest) {
+    EXPECT_FALSE(scene->HasAnimations());
+	EXPECT_FALSE(scene->HasMaterials());
+	EXPECT_FALSE(scene->HasMeshes());
+	EXPECT_FALSE(scene->HasCameras());
+	EXPECT_FALSE(scene->HasLights());
+	EXPECT_FALSE(scene->HasTextures());
+}
+
+TEST_F(utScene, getShortFilenameTest) {
+	std::string long_filename1 = "foo_bar/name";
+    const char *name1 = scene->GetShortFilename(long_filename1.c_str());
+	EXPECT_NE(nullptr, name1);
+
+    std::string long_filename2 = "foo_bar\\name";
+    const char *name2 = scene->GetShortFilename(long_filename2.c_str());
+	EXPECT_NE(nullptr, name2);
+}
+
+TEST_F(utScene, getEmbeddedTextureTest) {
+}

test/unit/ImportExport/Assxml/utAssxmlImportExport.cpp

@@ -0,0 +1,76 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, 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 "AbstractImportExportBase.h"
+#include "SceneDiffer.h"
+#include "UnitTestPCH.h"
+
+#include <assimp/postprocess.h>
+#include <assimp/Importer.hpp>
+#include <assimp/Exporter.hpp>
+
+using namespace Assimp;
+
+class utAssxmlImportExport : public AbstractImportExportBase {
+public:
+	bool importerTest() override {
+		return true;
+    }
+
+#ifndef ASSIMP_BUILD_NO_EXPORT
+	bool exporterTest() override {
+		Assimp::Importer importer;
+		const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/OBJ/spider.obj", aiProcess_ValidateDataStructure);
+		EXPECT_NE(scene, nullptr );
+
+        ::Assimp::Exporter exporter;
+		return AI_SUCCESS == exporter.Export(scene, "assxml", ASSIMP_TEST_MODELS_DIR "/OBJ/spider_out.assxml");
+    }
+#endif
+};
+
+#ifndef ASSIMP_BUILD_NO_EXPORT
+
+TEST_F(utAssxmlImportExport, exportAssxmlTest) {
+	EXPECT_TRUE(exporterTest());
+}
+
+#endif

test/unit/ImportExport/IRR/utIrrImportExport.cpp

@@ -0,0 +1,66 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2020, 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 "AbstractImportExportBase.h"
+#include "UnitTestPCH.h"
+#include <assimp/postprocess.h>
+#include <assimp/scene.h>
+#include <assimp/Importer.hpp>
+
+using namespace Assimp;
+
+class utIrrImportExport : public AbstractImportExportBase {
+public:
+	virtual bool importerTest() {
+		Assimp::Importer importer;
+		const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/IRR/box.irr", aiProcess_ValidateDataStructure);
+		return nullptr != scene;
+	}
+};
+
+TEST_F(utIrrImportExport, importSimpleIrrTest) {
+	EXPECT_TRUE(importerTest());
+}
+
+TEST_F(utIrrImportExport, importSGIrrTest) {
+	Assimp::Importer importer;
+	const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/IRR/dawfInCellar_SameHierarchy.irr", aiProcess_ValidateDataStructure);
+	EXPECT_NE( nullptr,scene);
+}

test/unit/ImportExport/RAW/utRAWImportExport.cpp

@@ -0,0 +1,64 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2020, 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 "AbstractImportExportBase.h"
+#include "UnitTestPCH.h"
+#include <assimp/postprocess.h>
+#include <assimp/scene.h>
+#include <assimp/Importer.hpp>
+
+using namespace Assimp;
+
+class utRAWImportExport : public AbstractImportExportBase {
+public:
+    virtual bool importerTest() {
+        Assimp::Importer importer;
+        const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/RAW/Wuson.raw", aiProcess_ValidateDataStructure);
+#ifndef ASSIMP_BUILD_NO_RAW_IMPORTER
+        return nullptr != scene;
+#else
+        return nullptr == scene;
+#endif
+    }
+};
+
+TEST_F(utRAWImportExport, importSimpleRAWTest) {
+    EXPECT_TRUE(importerTest());
+}

test/unit/ImportExport/Terragen/utTerragenImportExport.cpp

@@ -0,0 +1,60 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2020, 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 "AbstractImportExportBase.h"
+#include "UnitTestPCH.h"
+
+#include <assimp/postprocess.h>
+#include <assimp/Importer.hpp>
+
+class utTerragenImportExport : public AbstractImportExportBase {
+public:
+    virtual bool importerTest() {
+        /*Assimp::Importer importer;
+        const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/TER/RealisticTerrain.ter", aiProcess_ValidateDataStructure);
+        return nullptr != scene;*/
+        return true;
+    }
+};
+
+TEST_F(utTerragenImportExport, importX3DFromFileTest) {
+    EXPECT_TRUE(importerTest());
+}

test/unit/MathTest.cpp

@@ -0,0 +1,56 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2020, 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 "MathTest.h"
+
+namespace Assimp {
+
+// Initialize epsilon value.
+const float AssimpMathTest::Epsilon = Math::getEpsilon<float>();
+
+// Initialize with an interval of [1,100].
+RandomUniformFloatGenerator AssimpMathTest::RandNonZero(1.0f, 100.0f);
+
+// Initialize with an interval of [-PI,PI] inclusively.
+RandomUniformFloatGenerator AssimpMathTest::RandPI(-Math::PI<float>(), Math::PI<float>());
+
+}

test/unit/MathTest.h

@@ -0,0 +1,103 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2020, 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_MATH_TEST_H
+#define ASSIMP_MATH_TEST_H
+
+#include "UnitTestPCH.h"
+#include <assimp/types.h>
+#include "RandomNumberGeneration.h"
+
+namespace Assimp {
+
+/** Custom test class providing several math related utilities. */
+class AssimpMathTest : public ::testing::Test {
+public:
+    /** Return a random non-null 2D vector. */
+    inline static aiVector2D random_vec2() {
+        return aiVector2D(RandNonZero.next(), RandNonZero.next());
+    }
+
+    /** Return a random non-null 3D vector. */
+    inline static aiVector3D random_vec3() {
+        return aiVector3D(RandNonZero.next(), RandNonZero.next(),RandNonZero.next());
+    }
+
+    /** Return a random unit 3D vector. */
+    inline static aiVector3D random_unit_vec3() {
+        return random_vec3().NormalizeSafe();
+    }
+
+    /** Return a quaternion with random orientation and
+      * rotation angle around axis. */
+    inline static aiQuaternion random_quat() {
+        return aiQuaternion(random_unit_vec3(), RandPI.next());
+    }
+
+    /** Return a random non-null 3x3 matrix. */
+    inline static aiMatrix3x3 random_mat3() {
+        return aiMatrix3x3(
+            RandNonZero.next(), RandNonZero.next(),RandNonZero.next(),
+            RandNonZero.next(), RandNonZero.next(),RandNonZero.next(),
+            RandNonZero.next(), RandNonZero.next(),RandNonZero.next());
+    }
+
+    /** Return a random non-null 4x4 matrix. */
+    inline static aiMatrix4x4 random_mat4() {
+        return aiMatrix4x4(
+            RandNonZero.next(), RandNonZero.next(),RandNonZero.next(), RandNonZero.next(),
+            RandNonZero.next(), RandNonZero.next(),RandNonZero.next(), RandNonZero.next(),
+            RandNonZero.next(), RandNonZero.next(),RandNonZero.next(), RandNonZero.next(),
+            RandNonZero.next(), RandNonZero.next(),RandNonZero.next(), RandNonZero.next());
+    }
+
+    /** Epsilon value to use in tests. */
+    static const float Epsilon;
+
+    /** Random number generators. */
+    static RandomUniformFloatGenerator RandNonZero, RandPI;
+};
+
+}
+
+#endif // ASSIMP_MATH_TEST_H

test/unit/RandomNumberGeneration.h

@@ -0,0 +1,82 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2020, 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_RANDOM_NUMBER_GENERATION_H
+#define ASSIMP_RANDOM_NUMBER_GENERATION_H
+
+#include <random>
+
+namespace Assimp {
+
+/** Helper class to use for generating pseudo-random
+ *  real numbers, with a uniform distribution. */
+template<typename T>
+class RandomUniformRealGenerator {
+public:
+    RandomUniformRealGenerator() :
+            dist_(),
+            rd_(), 
+            re_(rd_())  {
+        // empty
+    }
+    
+    RandomUniformRealGenerator(T min, T max) :
+            dist_(min, max),
+            rd_(),
+            re_(rd_())  {
+        // empty
+    }
+
+    inline T next() {
+        return dist_(re_);
+    }
+
+private:
+    std::uniform_real_distribution<T> dist_;
+    std::random_device rd_;
+    std::default_random_engine re_;
+};
+
+using RandomUniformFloatGenerator = RandomUniformRealGenerator<float>;
+
+}
+
+#endif // ASSIMP_RANDOM_NUMBER_GENERATION_H

test/unit/utFBXImporterExporter.cpp

@@ -213,6 +213,10 @@ TEST_F(utFBXImporterExporter, importUnitScaleFactor) {
     double factor(0.0);
     scene->mMetaData->Get("UnitScaleFactor", factor);
     EXPECT_DOUBLE_EQ(500.0, factor);
+
+    scene->mMetaData->Set("UnitScaleFactor", factor * 2);
+    scene->mMetaData->Get("UnitScaleFactor", factor);
+    EXPECT_DOUBLE_EQ(1000.0, factor);
 }
 
 TEST_F(utFBXImporterExporter, importEmbeddedAsciiTest) {

test/unit/utM3DImportExport.cpp

@@ -43,6 +43,8 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "AbstractImportExportBase.h"
 #include "UnitTestPCH.h"
 
+#include <assimp/Importer.hpp>
+#include <assimp/Exporter.hpp>
 #include <assimp/postprocess.h>
 #include <assimp/Importer.hpp>
 
@@ -50,17 +52,33 @@ using namespace Assimp;
 
 class utM3DImportExport : public AbstractImportExportBase {
 public:
-    virtual bool importerTest() {
+	bool importerTest() override  {
         Assimp::Importer importer;
         const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/M3D/cube_normals.m3d", aiProcess_ValidateDataStructure);
 #ifndef ASSIMP_BUILD_NO_M3D_IMPORTER
-        return nullptr != scene;
+		return nullptr != scene;
 #else
         return nullptr == scene;
 #endif // ASSIMP_BUILD_NO_M3D_IMPORTER
     }
+
+#ifndef ASSIMP_BUILD_NO_EXPORT
+    bool exporterTest() override {
+		Assimp::Importer importer;
+		const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/M3D/cube_normals.m3d", aiProcess_ValidateDataStructure);
+		Exporter exporter;
+		aiReturn ret = exporter.Export(scene, "m3d", ASSIMP_TEST_MODELS_DIR "/M3D/cube_normals_out.m3d");
+		return ret == AI_SUCCESS;
+    }
+#endif
 };
 
 TEST_F(utM3DImportExport, importM3DFromFileTest) {
     EXPECT_TRUE(importerTest());
 }
+
+#ifndef ASSIMP_BUILD_NO_EXPORT
+TEST_F(utM3DImportExport, exportM3DFromFileTest) {
+	EXPECT_TRUE(exporterTest());
+}
+#endif //  ASSIMP_BUILD_NO_EXPORT

test/unit/utglTF2ImportExport.cpp

@@ -491,6 +491,12 @@ TEST_F(utglTF2ImportExport, texcoords) {
     EXPECT_EQ(uvIndex, 1);
 }
 
+TEST_F(utglTF2ImportExport, recursive_nodes) {
+    Assimp::Importer importer;
+    const aiScene* scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/glTF2/RecursiveNodes/RecursiveNodes.gltf", aiProcess_ValidateDataStructure);
+    EXPECT_EQ(nullptr, scene);
+}
+
 TEST_F(utglTF2ImportExport, norootnode_noscene) {
     Assimp::Importer importer;
     const aiScene* scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/glTF2/TestNoRootNode/NoScene.gltf", aiProcess_ValidateDataStructure);

tools/assimp_view/Background.cpp

@@ -101,7 +101,7 @@ void CBackgroundPainter::SetColor (D3DCOLOR p_clrNew)
     if (pcTexture)
     {
         pcTexture->Release();
-        pcTexture = NULL;
+        pcTexture = nullptr;
     }
 }
 //-------------------------------------------------------------------------------
@@ -135,7 +135,7 @@ void CBackgroundPainter::SetCubeMapBG (const char* p_szPath)
     if (pcTexture)
     {
         pcTexture->Release();
-        pcTexture = NULL;
+        pcTexture = nullptr;
         if(TEXTURE_CUBE ==eMode)bHad = true;
     }
 
@@ -199,7 +199,7 @@ void CBackgroundPainter::SetTextureBG (const char* p_szPath)
     if (pcTexture)
     {
         pcTexture->Release();
-        pcTexture = NULL;
+        pcTexture = nullptr;
     }
 
     eMode = TEXTURE_2D;
@@ -223,12 +223,12 @@ void CBackgroundPainter::OnPreRender()
         // the color buffer )
         if (g_sOptions.eDrawMode == RenderOptions::WIREFRAME)
         {
-            g_piDevice->Clear(0,NULL,D3DCLEAR_ZBUFFER | D3DCLEAR_TARGET,
+            g_piDevice->Clear(0,nullptr,D3DCLEAR_ZBUFFER | D3DCLEAR_TARGET,
                 D3DCOLOR_ARGB(0xff,100,100,100),1.0f,0);
         }
         else
         {
-            g_piDevice->Clear(0,NULL,D3DCLEAR_ZBUFFER,0,1.0f,0);
+            g_piDevice->Clear(0,nullptr,D3DCLEAR_ZBUFFER,0,1.0f,0);
         }
 
         if (TEXTURE_2D == eMode)
@@ -293,7 +293,7 @@ void CBackgroundPainter::OnPreRender()
         return;
     }
     // clear both the render target and the z-buffer
-    g_piDevice->Clear(0,NULL,D3DCLEAR_TARGET | D3DCLEAR_ZBUFFER,
+    g_piDevice->Clear(0,nullptr,D3DCLEAR_TARGET | D3DCLEAR_ZBUFFER,
         clrColor,1.0f,0);
 }
 //-------------------------------------------------------------------------------
@@ -342,12 +342,12 @@ void CBackgroundPainter::ReleaseNativeResource()
     if ( piSkyBoxEffect)
     {
         piSkyBoxEffect->Release();
-        piSkyBoxEffect = NULL;
+        piSkyBoxEffect = nullptr;
     }
     if (pcTexture)
     {
         pcTexture->Release();
-        pcTexture = NULL;
+        pcTexture = nullptr;
     }
 }
 //-------------------------------------------------------------------------------
@@ -377,8 +377,8 @@ void CBackgroundPainter::RecreateNativeResource()
             D3DX_DEFAULT,
             D3DX_DEFAULT,
             0,
-            NULL,
-            NULL,
+            nullptr,
+            nullptr,
             (IDirect3DCubeTexture9**)&pcTexture)))
         {
             const char* szEnd = strrchr(szPath.c_str(),'\\');
@@ -411,8 +411,8 @@ void CBackgroundPainter::RecreateNativeResource()
             D3DX_DEFAULT,
             D3DX_DEFAULT,
             0,
-            NULL,
-            NULL,
+            nullptr,
+            nullptr,
             (IDirect3DTexture9**)&pcTexture)))
         {
             const char* szEnd = strrchr(szPath.c_str(),'\\');
@@ -433,15 +433,15 @@ void CBackgroundPainter::RecreateNativeResource()
     }
     if (!piSkyBoxEffect)
     {
-        ID3DXBuffer* piBuffer = NULL;
+        ID3DXBuffer* piBuffer = nullptr;
         if(FAILED( D3DXCreateEffect(
             g_piDevice,
             g_szSkyboxShader.c_str(),
             (UINT)g_szSkyboxShader.length(),
-            NULL,
-            NULL,
+            nullptr,
+            nullptr,
             AI_SHADER_COMPILE_FLAGS,
-            NULL,
+            nullptr,
             &piSkyBoxEffect,&piBuffer)))
         {
             // failed to compile the shader

tools/assimp_view/Display.cpp

@@ -158,8 +158,8 @@ int CDisplay::AddNodeToDisplayList(
     aiNode* pcNode,
     HTREEITEM hRoot)
 {
-    ai_assert(NULL != pcNode);
-    ai_assert(NULL != hRoot);
+    ai_assert(nullptr != pcNode);
+    ai_assert(nullptr != hRoot);
 
     char chTemp[MAXLEN];
 
@@ -269,13 +269,13 @@ int CDisplay::AddMeshToDisplayList(unsigned int iIndex, HTREEITEM hRoot)
 // Replace the currently selected texture by another one
 int CDisplay::ReplaceCurrentTexture(const char* szPath)
 {
-    ai_assert(NULL != szPath);
+    ai_assert(nullptr != szPath);
 
     // well ... try to load it
-    IDirect3DTexture9* piTexture = NULL;
+    IDirect3DTexture9* piTexture = nullptr;
     aiString szString;
     strcpy(szString.data,szPath);
-    szString.length = strlen(szPath);
+    szString.length = static_cast<ai_uint32>(strlen(szPath));
     CMaterialManager::Instance().LoadTexture(&piTexture,&szString);
 
     if (!piTexture) {
@@ -301,8 +301,8 @@ int CDisplay::ReplaceCurrentTexture(const char* szPath)
             continue;
 
         AssetHelper::MeshHelper* pcMesh = g_pcAsset->apcMeshes[i];
-        IDirect3DTexture9** tex = NULL;
-        const char* tex_string  = NULL;
+        IDirect3DTexture9** tex = nullptr;
+        const char* tex_string  = nullptr;
 
         switch (this->m_pcCurrentTexture->iType)
         {
@@ -378,7 +378,7 @@ int CDisplay::AddTextureToDisplayList(unsigned int iType,
     aiTextureOp eTextureOp      /*= aiTextureOp_Multiply*/,
     unsigned int iMesh      /*= 0*/)
 {
-    ai_assert(NULL != szPath);
+    ai_assert(nullptr != szPath);
 
     char chTemp[512];
     char chTempEmb[256];
@@ -388,8 +388,8 @@ int CDisplay::AddTextureToDisplayList(unsigned int iType,
     {
         if ('*' == *szPath->data)
         {
-            int iIndex = atoi(szPath->data+1);
-            ai_snprintf(chTempEmb,256,"Embedded #%i",iIndex);
+            int iIndex2 = atoi(szPath->data+1);
+            ai_snprintf(chTempEmb,256,"Embedded #%i",iIndex2);
             sz = chTempEmb;
         }
         else
@@ -436,15 +436,15 @@ int CDisplay::AddTextureToDisplayList(unsigned int iType,
         szType = "Lightmap";
         break;
     case aiTextureType_DISPLACEMENT:
-        piTexture = NULL;
+        piTexture = nullptr;
         szType = "Displacement";
         break;
     case aiTextureType_REFLECTION:
-        piTexture = NULL;
+        piTexture = nullptr;
         szType = "Reflection";
         break;
     case aiTextureType_UNKNOWN:
-        piTexture = NULL;
+        piTexture = nullptr;
         szType = "Unknown";
         break;
     default: // opacity + opacity | mask
@@ -521,7 +521,7 @@ int CDisplay::AddTextureToDisplayList(unsigned int iType,
 int CDisplay::AddMaterialToDisplayList(HTREEITEM hRoot,
     unsigned int iIndex)
 {
-    ai_assert(NULL != hRoot);
+    ai_assert(nullptr != hRoot);
 
     aiMaterial* pcMat = g_pcAsset->pcScene->mMaterials[iIndex];
 
@@ -583,7 +583,7 @@ int CDisplay::AddMaterialToDisplayList(HTREEITEM hRoot,
         while (true)
         {
             if (AI_SUCCESS != aiGetMaterialTexture(pcMat,(aiTextureType)i,iNum,
-                &szPath,NULL, &iUV,&fBlend,&eOp))
+                &szPath,nullptr, &iUV,&fBlend,&eOp))
             {
                 break;
             }
@@ -658,23 +658,23 @@ int CDisplay::LoadImageList(void)
 
         // Load the bitmaps and add them to the image lists.
         HBITMAP hBmp = LoadBitmap(g_hInstance, MAKEINTRESOURCE(IDB_BFX));
-        m_aiImageList[AI_VIEW_IMGLIST_MATERIAL] = ImageList_Add(hIml, hBmp, NULL);
+        m_aiImageList[AI_VIEW_IMGLIST_MATERIAL] = ImageList_Add(hIml, hBmp, nullptr);
         DeleteObject(hBmp);
 
         hBmp = LoadBitmap(g_hInstance, MAKEINTRESOURCE(IDB_BNODE));
-        m_aiImageList[AI_VIEW_IMGLIST_NODE] = ImageList_Add(hIml, hBmp, NULL);
+        m_aiImageList[AI_VIEW_IMGLIST_NODE] = ImageList_Add(hIml, hBmp, nullptr);
         DeleteObject(hBmp);
 
         hBmp = LoadBitmap(g_hInstance, MAKEINTRESOURCE(IDB_BTX));
-        m_aiImageList[AI_VIEW_IMGLIST_TEXTURE] = ImageList_Add(hIml, hBmp, NULL);
+        m_aiImageList[AI_VIEW_IMGLIST_TEXTURE] = ImageList_Add(hIml, hBmp, nullptr);
         DeleteObject(hBmp);
 
         hBmp = LoadBitmap(g_hInstance, MAKEINTRESOURCE(IDB_BTXI));
-        m_aiImageList[AI_VIEW_IMGLIST_TEXTURE_INVALID] = ImageList_Add(hIml, hBmp, NULL);
+        m_aiImageList[AI_VIEW_IMGLIST_TEXTURE_INVALID] = ImageList_Add(hIml, hBmp, nullptr);
         DeleteObject(hBmp);
 
         hBmp = LoadBitmap(g_hInstance, MAKEINTRESOURCE(IDB_BROOT));
-        m_aiImageList[AI_VIEW_IMGLIST_MODEL] = ImageList_Add(hIml, hBmp, NULL);
+        m_aiImageList[AI_VIEW_IMGLIST_MODEL] = ImageList_Add(hIml, hBmp, nullptr);
         DeleteObject(hBmp);
 
         // Associate the image list with the tree.
@@ -778,7 +778,7 @@ int CDisplay::OnRender()
 
     // present the back-buffer
     g_piDevice->EndScene();
-    g_piDevice->Present(NULL,NULL,NULL,NULL);
+    g_piDevice->Present(nullptr,nullptr,nullptr,nullptr);
 
     // don't remove this, problems on some older machines (AMD timing bug)
     Sleep(10);
@@ -788,9 +788,9 @@ int CDisplay::OnRender()
 // Update UI
 void UpdateColorFieldsInUI()
 {
-    InvalidateRect(GetDlgItem(g_hDlg,IDC_LCOLOR1),NULL,TRUE);
-    InvalidateRect(GetDlgItem(g_hDlg,IDC_LCOLOR2),NULL,TRUE);
-    InvalidateRect(GetDlgItem(g_hDlg,IDC_LCOLOR3),NULL,TRUE);
+    InvalidateRect(GetDlgItem(g_hDlg,IDC_LCOLOR1),nullptr,TRUE);
+    InvalidateRect(GetDlgItem(g_hDlg,IDC_LCOLOR2),nullptr,TRUE);
+    InvalidateRect(GetDlgItem(g_hDlg,IDC_LCOLOR3),nullptr,TRUE);
 
     UpdateWindow(GetDlgItem(g_hDlg,IDC_LCOLOR1));
     UpdateWindow(GetDlgItem(g_hDlg,IDC_LCOLOR2));
@@ -859,7 +859,7 @@ int CDisplay::Reset(void)
     m_asNodes.clear();
     m_asMeshes.clear();
 
-    m_hRoot = NULL;
+    m_hRoot = nullptr;
 
     return OnSetupNormalView();
 }
@@ -896,9 +896,9 @@ int CDisplay::OnSetupNormalView()
     SetViewMode(VIEWMODE_FULL);
 
     // for debugging
-    m_pcCurrentMaterial = NULL;
-    m_pcCurrentTexture = NULL;
-    m_pcCurrentNode = NULL;
+    m_pcCurrentMaterial = nullptr;
+    m_pcCurrentTexture = nullptr;
+    m_pcCurrentNode = nullptr;
 
     // redraw the color fields in the UI --- their purpose has possibly changed
     UpdateColorFieldsInUI();
@@ -908,7 +908,7 @@ int CDisplay::OnSetupNormalView()
 //-------------------------------------------------------------------------------
 int CDisplay::OnSetupNodeView(NodeInfo* pcNew)
 {
-    ai_assert(NULL != pcNew);
+    ai_assert(nullptr != pcNew);
 
     if (m_pcCurrentNode == pcNew)return 2;
 
@@ -955,7 +955,7 @@ int CDisplay::OnSetupNodeView(NodeInfo* pcNew)
 //-------------------------------------------------------------------------------
 int CDisplay::OnSetupMaterialView(MaterialInfo* pcNew)
 {
-    ai_assert(NULL != pcNew);
+    ai_assert(nullptr != pcNew);
 
     if (m_pcCurrentMaterial == pcNew)return 2;
 
@@ -973,7 +973,7 @@ int CDisplay::OnSetupMaterialView(MaterialInfo* pcNew)
 //-------------------------------------------------------------------------------
 int CDisplay::OnSetupTextureView(TextureInfo* pcNew)
 {
-    ai_assert(NULL != pcNew);
+    ai_assert(nullptr != pcNew);
 
     if (this->m_pcCurrentTexture == pcNew)return 2;
 
@@ -1099,7 +1099,7 @@ int CDisplay::OnSetup(HTREEITEM p_hTreeItem)
         MaterialInfo* pcNew3;
     };
 
-    pcNew = NULL;
+    pcNew = nullptr;
     for (std::vector<TextureInfo>::iterator i =  m_asTextures.begin();i != m_asTextures.end();++i){
         if (p_hTreeItem == (*i).hTreeItem)  {
             pcNew = &(*i);
@@ -1136,12 +1136,12 @@ int CDisplay::OnSetup(HTREEITEM p_hTreeItem)
 //-------------------------------------------------------------------------------
 int CDisplay::ShowTreeViewContextMenu(HTREEITEM hItem)
 {
-    ai_assert(NULL != hItem);
+    ai_assert(nullptr != hItem);
 
-    HMENU hDisplay = NULL;
+    HMENU hDisplay = nullptr;
 
     // search in our list for the item
-    TextureInfo* pcNew = NULL;
+    TextureInfo* pcNew = nullptr;
     for (std::vector<TextureInfo>::iterator
         i =  m_asTextures.begin();
         i != m_asTextures.end();++i)
@@ -1158,7 +1158,7 @@ int CDisplay::ShowTreeViewContextMenu(HTREEITEM hItem)
     }
 
     // search in the material list for the item
-    MaterialInfo* pcNew2 = NULL;
+    MaterialInfo* pcNew2 = nullptr;
     for (std::vector<MaterialInfo>::iterator
         i =  m_asMaterials.begin();
         i != m_asMaterials.end();++i)
@@ -1173,7 +1173,7 @@ int CDisplay::ShowTreeViewContextMenu(HTREEITEM hItem)
         HMENU hMenu = LoadMenu(g_hInstance,MAKEINTRESOURCE(IDR_MATPOPUP));
         hDisplay = GetSubMenu(hMenu,0);
     }
-    if (NULL != hDisplay)
+    if (nullptr != hDisplay)
     {
         // select this entry (this should all OnSetup())
         TreeView_Select(GetDlgItem(g_hDlg,IDC_TREE1),hItem,TVGN_CARET);
@@ -1185,7 +1185,7 @@ int CDisplay::ShowTreeViewContextMenu(HTREEITEM hItem)
         POINT sPoint;
         GetCursorPos(&sPoint);
         TrackPopupMenu(hDisplay, TPM_LEFTALIGN, sPoint.x, sPoint.y, 0,
-            g_hDlg,NULL);
+            g_hDlg,nullptr);
     }
     return 1;
 }
@@ -1260,8 +1260,8 @@ int CDisplay::HandleTreeViewPopup(WPARAM wParam,LPARAM lParam)
             clamp<unsigned char>(clrOld.g * 255.0f),
             clamp<unsigned char>(clrOld.b * 255.0f));
         clr.lpCustColors = g_aclCustomColors;
-        clr.lpfnHook = NULL;
-        clr.lpTemplateName = NULL;
+        clr.lpfnHook = nullptr;
+        clr.lpTemplateName = nullptr;
         clr.lCustData = 0;
 
         ChooseColor(&clr);
@@ -1308,7 +1308,7 @@ int CALLBACK TreeViewCompareFunc(LPARAM lParam1, LPARAM lParam2, LPARAM lParamSo
     return 0;
 }
 //-------------------------------------------------------------------------------
-int CDisplay::HandleTreeViewPopup2(WPARAM wParam,LPARAM lParam)
+int CDisplay::HandleTreeViewPopup2(WPARAM wParam,LPARAM /*lParam*/)
 {
     char szFileName[MAX_PATH];
     DWORD dwTemp = MAX_PATH;
@@ -1318,7 +1318,7 @@ int CDisplay::HandleTreeViewPopup2(WPARAM wParam,LPARAM lParam)
     case ID_HEY_REPLACE:
         {
         // get a path to a new texture
-        if(ERROR_SUCCESS != RegQueryValueEx(g_hRegistry,"ReplaceTextureSrc",NULL,NULL,
+        if(ERROR_SUCCESS != RegQueryValueEx(g_hRegistry,"ReplaceTextureSrc",nullptr,nullptr,
             (BYTE*)szFileName,&dwTemp))
         {
             // Key was not found. Use C:
@@ -1335,13 +1335,13 @@ int CDisplay::HandleTreeViewPopup2(WPARAM wParam,LPARAM lParam)
         }
         OPENFILENAME sFilename1 = {
             sizeof(OPENFILENAME),
-            g_hDlg,GetModuleHandle(NULL),
+            g_hDlg,GetModuleHandle(nullptr),
             "Textures\0*.png;*.dds;*.tga;*.bmp;*.tif;*.ppm;*.ppx;*.jpg;*.jpeg;*.exr\0*.*\0",
-            NULL, 0, 1,
-            szFileName, MAX_PATH, NULL, 0, NULL,
+            nullptr, 0, 1,
+            szFileName, MAX_PATH, nullptr, 0, nullptr,
             "Replace this texture",
             OFN_OVERWRITEPROMPT | OFN_HIDEREADONLY | OFN_NOCHANGEDIR,
-            0, 1, ".jpg", 0, NULL, NULL
+            0, 1, ".jpg", 0, nullptr, nullptr
         };
         if(GetOpenFileName(&sFilename1) == 0) return 0;
 
@@ -1353,7 +1353,7 @@ int CDisplay::HandleTreeViewPopup2(WPARAM wParam,LPARAM lParam)
 
     case ID_HEY_EXPORT:
         {
-        if(ERROR_SUCCESS != RegQueryValueEx(g_hRegistry,"TextureExportDest",NULL,NULL,
+        if(ERROR_SUCCESS != RegQueryValueEx(g_hRegistry,"TextureExportDest",nullptr,nullptr,
             (BYTE*)szFileName,&dwTemp))
         {
             // Key was not found. Use C:
@@ -1370,12 +1370,12 @@ int CDisplay::HandleTreeViewPopup2(WPARAM wParam,LPARAM lParam)
         }
         OPENFILENAME sFilename1 = {
             sizeof(OPENFILENAME),
-            g_hDlg,GetModuleHandle(NULL),
-            "Textures\0*.png;*.dds;*.bmp;*.tif;*.pfm;*.jpg;*.jpeg;*.hdr\0*.*\0", NULL, 0, 1,
-            szFileName, MAX_PATH, NULL, 0, NULL,
+            g_hDlg,GetModuleHandle(nullptr),
+            "Textures\0*.png;*.dds;*.bmp;*.tif;*.pfm;*.jpg;*.jpeg;*.hdr\0*.*\0", nullptr, 0, 1,
+            szFileName, MAX_PATH, nullptr, 0, nullptr,
             "Export texture to file",
             OFN_OVERWRITEPROMPT | OFN_HIDEREADONLY | OFN_NOCHANGEDIR,
-            0, 1, ".png", 0, NULL, NULL
+            0, 1, ".png", 0, nullptr, nullptr
         };
         if(GetSaveFileName(&sFilename1) == 0) return 0;
 
@@ -1397,9 +1397,9 @@ int CDisplay::HandleTreeViewPopup2(WPARAM wParam,LPARAM lParam)
         }
 
         // get a pointer to the first surface of the current texture
-        IDirect3DSurface9* pi = NULL;
+        IDirect3DSurface9* pi = nullptr;
         (*this->m_pcCurrentTexture->piTexture)->GetSurfaceLevel(0,&pi);
-        if(!pi || FAILED(D3DXSaveSurfaceToFile(szFileName,eFormat,pi,NULL,NULL)))
+        if(!pi || FAILED(D3DXSaveSurfaceToFile(szFileName,eFormat,pi,nullptr,nullptr)))
         {
             CLogDisplay::Instance().AddEntry("[ERROR] Unable to export texture",
                 D3DCOLOR_ARGB(0xFF,0xFF,0,0));
@@ -1495,7 +1495,7 @@ int CDisplay::HandleTreeViewPopup2(WPARAM wParam,LPARAM lParam)
 // Setup stereo view
 int CDisplay::SetupStereoView()
 {
-    if (NULL != g_pcAsset && NULL != g_pcAsset->pcScene->mRootNode)
+    if (nullptr != g_pcAsset && nullptr != g_pcAsset->pcScene->mRootNode)
     {
         // enable the RED, GREEN and ALPHA channels
         g_piDevice->SetRenderState(D3DRS_COLORWRITEENABLE,
@@ -1513,7 +1513,7 @@ int CDisplay::SetupStereoView()
 int CDisplay::RenderStereoView(const aiMatrix4x4& m)
 {
     // and rerender the scene
-    if (NULL != g_pcAsset && NULL != g_pcAsset->pcScene->mRootNode)
+    if (nullptr != g_pcAsset && nullptr != g_pcAsset->pcScene->mRootNode)
     {
         // enable the BLUE, GREEN and ALPHA channels
         g_piDevice->SetRenderState(D3DRS_COLORWRITEENABLE,
@@ -1522,7 +1522,7 @@ int CDisplay::RenderStereoView(const aiMatrix4x4& m)
             D3DCOLORWRITEENABLE_BLUE);
 
         // clear the z-buffer
-        g_piDevice->Clear(0,NULL,D3DCLEAR_ZBUFFER,0,1.0f,0);
+        g_piDevice->Clear(0,nullptr,D3DCLEAR_ZBUFFER,0,1.0f,0);
 
         // move the camera a little bit to the right
         g_sCamera.vPos += g_sCamera.vRight * 0.06f;
@@ -1751,7 +1751,7 @@ int CDisplay::RenderFullScene()
 
     // draw all opaque objects in the scene
     aiMatrix4x4 m;
-    if (NULL != g_pcAsset && NULL != g_pcAsset->pcScene->mRootNode)
+    if (nullptr != g_pcAsset && nullptr != g_pcAsset->pcScene->mRootNode)
     {
         HandleInput();
         m =  g_mWorld * g_mWorldRotate;
@@ -1766,7 +1766,7 @@ int CDisplay::RenderFullScene()
     CBackgroundPainter::Instance().OnPostRender();
 
     // draw all non-opaque objects in the scene
-    if (NULL != g_pcAsset && NULL != g_pcAsset->pcScene->mRootNode)
+    if (nullptr != g_pcAsset && nullptr != g_pcAsset->pcScene->mRootNode)
     {
         // disable the z-buffer
         if (!g_sOptions.bNoAlphaBlending) {
@@ -1784,7 +1784,7 @@ int CDisplay::RenderFullScene()
         RenderStereoView(m);
 
     // render the skeleton if necessary
-    if (g_sOptions.bSkeleton && NULL != g_pcAsset && NULL != g_pcAsset->pcScene->mRootNode) {
+    if (g_sOptions.bSkeleton && nullptr != g_pcAsset && nullptr != g_pcAsset->pcScene->mRootNode) {
         // disable the z-buffer
         g_piDevice->SetRenderState(D3DRS_ZWRITEENABLE,FALSE);
 
@@ -1795,11 +1795,11 @@ int CDisplay::RenderFullScene()
         g_piDevice->SetVertexDeclaration( gDefaultVertexDecl);
         // this is very similar to the code in SetupMaterial()
         ID3DXEffect* piEnd = g_piNormalsEffect;
-        aiMatrix4x4 pcProj = m * mViewProjection;
+        aiMatrix4x4 pcProj2 = m * mViewProjection;
 
         D3DXVECTOR4 vVector(1.f,0.f,0.f,1.f);
         piEnd->SetVector("OUTPUT_COLOR",&vVector);
-        piEnd->SetMatrix("WorldViewProjection", (const D3DXMATRIX*)&pcProj);
+        piEnd->SetMatrix("WorldViewProjection", (const D3DXMATRIX*)&pcProj2);
 
         UINT dwPasses = 0;
         piEnd->Begin(&dwPasses,0);
@@ -2098,14 +2098,14 @@ int CDisplay::RenderPatternBG()
         {
             // seems we have not yet compiled this shader.
             // and NOW is the best time to do that ...
-            ID3DXBuffer* piBuffer = NULL;
+            ID3DXBuffer* piBuffer = nullptr;
             if(FAILED( D3DXCreateEffect(g_piDevice,
                 g_szCheckerBackgroundShader.c_str(),
                 (UINT)g_szCheckerBackgroundShader.length(),
-                NULL,
-                NULL,
+                nullptr,
+                nullptr,
                 D3DXSHADER_USE_LEGACY_D3DX9_31_DLL,
-                NULL,
+                nullptr,
                 &g_piPatternEffect,&piBuffer)))
             {
                 if( piBuffer)
@@ -2118,7 +2118,7 @@ int CDisplay::RenderPatternBG()
             if( piBuffer)
             {
                 piBuffer->Release();
-                piBuffer = NULL;
+                piBuffer = nullptr;
             }
         }
         else
@@ -2126,14 +2126,14 @@ int CDisplay::RenderPatternBG()
             // clear the color buffer in magenta
             // (hopefully this is ugly enough that every ps_2_0 cards owner
             //  runs to the next shop to buy himself a new card ...)
-            g_piDevice->Clear(0,NULL,D3DCLEAR_TARGET | D3DCLEAR_ZBUFFER,
+            g_piDevice->Clear(0,nullptr,D3DCLEAR_TARGET | D3DCLEAR_ZBUFFER,
                 D3DCOLOR_ARGB(0xFF,0xFF,0,0xFF), 1.0f,0 );
             return 1;
         }
     }
 
     // clear the depth buffer only
-    g_piDevice->Clear(0,NULL,D3DCLEAR_ZBUFFER,
+    g_piDevice->Clear(0,nullptr,D3DCLEAR_ZBUFFER,
         D3DCOLOR_ARGB(0xFF,0xFF,0,0xFF), 1.0f,0 );
 
     // setup the colors to be used ...

tools/assimp_view/HelpDialog.cpp

@@ -53,8 +53,8 @@ INT_PTR CALLBACK HelpDialogProc(HWND hwndDlg,UINT uMsg, WPARAM wParam,LPARAM ) {
         case WM_INITDIALOG:
         {
             // load the help file ...
-            HRSRC res = FindResource(NULL,MAKEINTRESOURCE(IDR_TEXT1),"TEXT");
-            HGLOBAL hg = LoadResource(NULL,res);
+            HRSRC res = FindResource(nullptr,MAKEINTRESOURCE(IDR_TEXT1),"TEXT");
+            HGLOBAL hg = LoadResource(nullptr,res);
             void* pData = LockResource(hg);
 
             SETTEXTEX sInfo;

tools/assimp_view/LogDisplay.cpp

@@ -117,29 +117,29 @@ void CLogDisplay::OnRender() {
         sCopy.top       = sWndRect.top+1;
         sCopy.bottom    = sWndRect.bottom+1;
         sCopy.right     = sWndRect.right+1;
-        this->piFont->DrawText(NULL,szText ,
+        this->piFont->DrawText(nullptr,szText ,
             -1,&sCopy,DT_CENTER | DT_VCENTER,D3DCOLOR_ARGB(100,0x0,0x0,0x0));
         sCopy.left      = sWndRect.left+1;
         sCopy.top       = sWndRect.top+1;
         sCopy.bottom    = sWndRect.bottom-1;
         sCopy.right     = sWndRect.right-1;
-        this->piFont->DrawText(NULL,szText ,
+        this->piFont->DrawText(nullptr,szText ,
             -1,&sCopy,DT_CENTER | DT_VCENTER,D3DCOLOR_ARGB(100,0x0,0x0,0x0));
         sCopy.left      = sWndRect.left-1;
         sCopy.top       = sWndRect.top-1;
         sCopy.bottom    = sWndRect.bottom+1;
         sCopy.right     = sWndRect.right+1;
-        this->piFont->DrawText(NULL,szText ,
+        this->piFont->DrawText(nullptr,szText ,
             -1,&sCopy,DT_CENTER | DT_VCENTER,D3DCOLOR_ARGB(100,0x0,0x0,0x0));
         sCopy.left      = sWndRect.left-1;
         sCopy.top       = sWndRect.top-1;
         sCopy.bottom    = sWndRect.bottom-1;
         sCopy.right     = sWndRect.right-1;
-        this->piFont->DrawText(NULL,szText ,
+        this->piFont->DrawText(nullptr,szText ,
             -1,&sCopy,DT_CENTER | DT_VCENTER,D3DCOLOR_ARGB(100,0x0,0x0,0x0));
 
         // text
-        this->piFont->DrawText(NULL,szText ,
+        this->piFont->DrawText(nullptr,szText ,
             -1,&sWndRect,DT_CENTER | DT_VCENTER,D3DCOLOR_ARGB(0xFF,0xFF,0xFF,0xFF));
     }
 
@@ -176,7 +176,7 @@ void CLogDisplay::OnRender() {
             sCopy.top       = sRect.top+1;
             sCopy.bottom    = sRect.bottom+1;
             sCopy.right     = sRect.right+1;
-            this->piFont->DrawText(NULL,szText,
+            this->piFont->DrawText(nullptr,szText,
                 -1,&sCopy,DT_RIGHT | DT_TOP,D3DCOLOR_ARGB(
                 (unsigned char)(fAlpha * 100.0f),0x0,0x0,0x0));
 
@@ -184,7 +184,7 @@ void CLogDisplay::OnRender() {
             sCopy.top       = sRect.top-1;
             sCopy.bottom    = sRect.bottom-1;
             sCopy.right     = sRect.right-1;
-            this->piFont->DrawText(NULL,szText,
+            this->piFont->DrawText(nullptr,szText,
                 -1,&sCopy,DT_RIGHT | DT_TOP,D3DCOLOR_ARGB(
                 (unsigned char)(fAlpha * 100.0f),0x0,0x0,0x0));
 
@@ -192,7 +192,7 @@ void CLogDisplay::OnRender() {
             sCopy.top       = sRect.top-1;
             sCopy.bottom    = sRect.bottom+1;
             sCopy.right     = sRect.right+1;
-            this->piFont->DrawText(NULL,szText,
+            this->piFont->DrawText(nullptr,szText,
                 -1,&sCopy,DT_RIGHT | DT_TOP,D3DCOLOR_ARGB(
                 (unsigned char)(fAlpha * 100.0f),0x0,0x0,0x0));
 
@@ -200,12 +200,12 @@ void CLogDisplay::OnRender() {
             sCopy.top       = sRect.top+1;
             sCopy.bottom    = sRect.bottom-1;
             sCopy.right     = sRect.right-1;
-            this->piFont->DrawText(NULL,szText,
+            this->piFont->DrawText(nullptr,szText,
                 -1,&sCopy,DT_RIGHT | DT_TOP,D3DCOLOR_ARGB(
                 (unsigned char)(fAlpha * 100.0f),0x0,0x0,0x0));
 
             // draw the text itself
-            int iPX = this->piFont->DrawText(NULL,szText,
+            int iPX = this->piFont->DrawText(nullptr,szText,
                 -1,&sRect,DT_RIGHT | DT_TOP,clrColor);
 
             sRect.top += iPX;

tools/assimp_view/LogWindow.cpp

@@ -70,7 +70,7 @@ static const char* AI_VIEW_RTF_LOG_HEADER =
 // Message procedure for the log window
 //-------------------------------------------------------------------------------
 INT_PTR CALLBACK LogDialogProc(HWND hwndDlg,UINT uMsg,
-    WPARAM wParam,LPARAM lParam)
+    WPARAM /*wParam*/,LPARAM lParam)
     {
     (void)lParam;
     switch (uMsg)
@@ -86,7 +86,7 @@ INT_PTR CALLBACK LogDialogProc(HWND hwndDlg,UINT uMsg,
             int x = LOWORD(lParam);
             int y = HIWORD(lParam);
 
-            SetWindowPos(GetDlgItem(hwndDlg,IDC_EDIT1),NULL,0,0,
+            SetWindowPos(GetDlgItem(hwndDlg,IDC_EDIT1),nullptr,0,0,
                 x-10,y-12,SWP_NOMOVE|SWP_NOZORDER);
 
             return TRUE;
@@ -103,7 +103,7 @@ INT_PTR CALLBACK LogDialogProc(HWND hwndDlg,UINT uMsg,
 //-------------------------------------------------------------------------------
 void CLogWindow::Init () {
     this->hwnd = ::CreateDialog(g_hInstance,MAKEINTRESOURCE(IDD_LOGVIEW),
-        NULL,&LogDialogProc);
+        nullptr,&LogDialogProc);
 
     if (!this->hwnd) {
         CLogDisplay::Instance().AddEntry("[ERROR] Unable to create logger window",
@@ -156,7 +156,7 @@ void CLogWindow::Save() {
     char szFileName[MAX_PATH];
 
     DWORD dwTemp = MAX_PATH;
-    if(ERROR_SUCCESS != RegQueryValueEx(g_hRegistry,"LogDestination",NULL,NULL,(BYTE*)szFileName,&dwTemp)) {
+    if(ERROR_SUCCESS != RegQueryValueEx(g_hRegistry,"LogDestination",nullptr,nullptr,(BYTE*)szFileName,&dwTemp)) {
         // Key was not found. Use C:
         strcpy(szFileName,"");
     } else {
@@ -169,12 +169,12 @@ void CLogWindow::Save() {
     }
     OPENFILENAME sFilename1 = {
         sizeof(OPENFILENAME),
-        g_hDlg,GetModuleHandle(NULL),
-        "Log files\0*.txt", NULL, 0, 1,
-        szFileName, MAX_PATH, NULL, 0, NULL,
+        g_hDlg,GetModuleHandle(nullptr),
+        "Log files\0*.txt", nullptr, 0, 1,
+        szFileName, MAX_PATH, nullptr, 0, nullptr,
         "Save log to file",
         OFN_OVERWRITEPROMPT | OFN_HIDEREADONLY | OFN_NOCHANGEDIR,
-        0, 1, ".txt", 0, NULL, NULL
+        0, 1, ".txt", 0, nullptr, nullptr
     };
     if(GetSaveFileName(&sFilename1) == 0) return;
 

tools/assimp_view/Material.cpp

@@ -210,15 +210,15 @@ int CMaterialManager::SetDefaultTexture(IDirect3DTexture9** p_ppiOut)
         D3DFMT_A8R8G8B8,
         D3DPOOL_MANAGED,
         p_ppiOut,
-        NULL)))
+        nullptr)))
     {
         CLogDisplay::Instance().AddEntry("[ERROR] Unable to create default texture",
             D3DCOLOR_ARGB(0xFF,0xFF,0,0));
 
-        *p_ppiOut = NULL;
+        *p_ppiOut = nullptr;
         return 0;
     }
-    D3DXFillTexture(*p_ppiOut,&FillFunc,NULL);
+    D3DXFillTexture(*p_ppiOut,&FillFunc,nullptr);
     sDefaultTexture = *p_ppiOut;
     sDefaultTexture->AddRef();
 
@@ -287,7 +287,7 @@ bool CMaterialManager::TryLongerPath(char* szTemp,aiString* p_szString)
                             size_t iLen2 = iLen+1;
                             iLen2 = iLen2 > MAXLEN ? MAXLEN : iLen2;
                             memcpy(p_szString->data,szTempB,iLen2);
-                            p_szString->length = iLen;
+                            p_szString->length = static_cast<ai_uint32>(iLen);
                             return true;
                         }
                     }
@@ -301,7 +301,7 @@ bool CMaterialManager::TryLongerPath(char* szTemp,aiString* p_szString)
                         size_t iLen2 = iLen+1;
                         iLen2 = iLen2 > MAXLEN ? MAXLEN : iLen2;
                         memcpy(p_szString->data,szTempB,iLen2);
-                        p_szString->length = iLen;
+                        p_szString->length = static_cast<ai_uint32>(iLen);
                         return true;
                     }
                 }
@@ -316,7 +316,7 @@ bool CMaterialManager::TryLongerPath(char* szTemp,aiString* p_szString)
 //-------------------------------------------------------------------------------
 int CMaterialManager::FindValidPath(aiString* p_szString)
 {
-    ai_assert(NULL != p_szString);
+    ai_assert(nullptr != p_szString);
     aiString pcpy = *p_szString;
     if ('*' ==  p_szString->data[0])    {
         // '*' as first character indicates an embedded file
@@ -389,10 +389,10 @@ int CMaterialManager::FindValidPath(aiString* p_szString)
                     if( !q ) q=strrchr( tmp2,'\\' );
                     if( q ){
                         strcpy( q+1,p+1 );
-                        if((pFile=fopen( tmp2,"r" ))){
+                        if((pFile=fopen( tmp2,"r" )) != nullptr){
                             fclose( pFile );
                             strcpy(p_szString->data,tmp2);
-                            p_szString->length = strlen(tmp2);
+                            p_szString->length = static_cast<ai_uint32>(strlen(tmp2));
                             return 1;
                         }
                     }
@@ -402,23 +402,22 @@ int CMaterialManager::FindValidPath(aiString* p_szString)
         }
         fclose(pFile);
 
-        // copy the result string back to the aiString
-        const size_t iLen = strlen(szTemp);
-        size_t iLen2 = iLen+1;
-        iLen2 = iLen2 > MAXLEN ? MAXLEN : iLen2;
-        memcpy(p_szString->data,szTemp,iLen2);
-        p_szString->length = iLen;
-
+        // copy the result string back to the aiStr
+        const size_t len = strlen(szTemp);
+        size_t len2 = len+1;
+        len2 = len2 > MAXLEN ? MAXLEN : len2;
+        memcpy(p_szString->data, szTemp, len2);
+        p_szString->length = static_cast<ai_uint32>(len);
     }
     return 1;
 }
 //-------------------------------------------------------------------------------
 int CMaterialManager::LoadTexture(IDirect3DTexture9** p_ppiOut,aiString* szPath)
 {
-    ai_assert(NULL != p_ppiOut);
-    ai_assert(NULL != szPath);
+    ai_assert(nullptr != p_ppiOut);
+    ai_assert(nullptr != szPath);
 
-    *p_ppiOut = NULL;
+    *p_ppiOut = nullptr;
 
     const std::string s = szPath->data;
     TextureCache::iterator ff;
@@ -453,7 +452,7 @@ int CMaterialManager::LoadTexture(IDirect3DTexture9** p_ppiOut,aiString* szPath)
                     D3DX_DEFAULT,
                     0,
                     &info,
-                    NULL,
+                    nullptr,
                     p_ppiOut)))
                 {
                     std::string sz = "[ERROR] Unable to load embedded texture (#1): ";
@@ -470,7 +469,7 @@ int CMaterialManager::LoadTexture(IDirect3DTexture9** p_ppiOut,aiString* szPath)
                 if(FAILED(g_piDevice->CreateTexture(
                     g_pcAsset->pcScene->mTextures[iIndex]->mWidth,
                     g_pcAsset->pcScene->mTextures[iIndex]->mHeight,
-                    0,D3DUSAGE_AUTOGENMIPMAP,D3DFMT_A8R8G8B8,D3DPOOL_MANAGED,p_ppiOut,NULL)))
+                    0,D3DUSAGE_AUTOGENMIPMAP,D3DFMT_A8R8G8B8,D3DPOOL_MANAGED,p_ppiOut,nullptr)))
                 {
                     std::string sz = "[ERROR] Unable to load embedded texture (#2): ";
                     sz.append(szPath->data);
@@ -482,7 +481,7 @@ int CMaterialManager::LoadTexture(IDirect3DTexture9** p_ppiOut,aiString* szPath)
 
                 // now copy the data to it ... (assume non pow2 to be supported)
                 D3DLOCKED_RECT sLock;
-                (*p_ppiOut)->LockRect(0,&sLock,NULL,0);
+                (*p_ppiOut)->LockRect(0,&sLock,nullptr,0);
 
                 const aiTexel* pcData = g_pcAsset->pcScene->mTextures[iIndex]->pcData;
 
@@ -524,8 +523,8 @@ int CMaterialManager::LoadTexture(IDirect3DTexture9** p_ppiOut,aiString* szPath)
         D3DX_DEFAULT,
         D3DX_DEFAULT,
         0,
-        NULL,
-        NULL,
+        nullptr,
+        nullptr,
         p_ppiOut)))
     {
         // error ... use the default texture instead
@@ -550,44 +549,44 @@ void CMaterialManager::DeleteMaterial(AssetHelper::MeshHelper* pcIn)
     if (pcIn->piDiffuseTexture)
     {
         pcIn->piDiffuseTexture->Release();
-        pcIn->piDiffuseTexture = NULL;
+        pcIn->piDiffuseTexture = nullptr;
     }
     if (pcIn->piSpecularTexture)
     {
         pcIn->piSpecularTexture->Release();
-        pcIn->piSpecularTexture = NULL;
+        pcIn->piSpecularTexture = nullptr;
     }
     if (pcIn->piEmissiveTexture)
     {
         pcIn->piEmissiveTexture->Release();
-        pcIn->piEmissiveTexture = NULL;
+        pcIn->piEmissiveTexture = nullptr;
     }
     if (pcIn->piAmbientTexture)
     {
         pcIn->piAmbientTexture->Release();
-        pcIn->piAmbientTexture = NULL;
+        pcIn->piAmbientTexture = nullptr;
     }
     if (pcIn->piOpacityTexture)
     {
         pcIn->piOpacityTexture->Release();
-        pcIn->piOpacityTexture = NULL;
+        pcIn->piOpacityTexture = nullptr;
     }
     if (pcIn->piNormalTexture)
     {
         pcIn->piNormalTexture->Release();
-        pcIn->piNormalTexture = NULL;
+        pcIn->piNormalTexture = nullptr;
     }
     if (pcIn->piShininessTexture)
     {
         pcIn->piShininessTexture->Release();
-        pcIn->piShininessTexture = NULL;
+        pcIn->piShininessTexture = nullptr;
     }
     if (pcIn->piLightmapTexture)
     {
         pcIn->piLightmapTexture->Release();
-        pcIn->piLightmapTexture = NULL;
+        pcIn->piLightmapTexture = nullptr;
     }
-    pcIn->piEffect = NULL;
+    pcIn->piEffect = nullptr;
 }
 //-------------------------------------------------------------------------------
 void CMaterialManager::HMtoNMIfNecessary(
@@ -595,8 +594,8 @@ void CMaterialManager::HMtoNMIfNecessary(
     IDirect3DTexture9** piTextureOut,
     bool bWasOriginallyHM)
 {
-    ai_assert(NULL != piTexture);
-    ai_assert(NULL != piTextureOut);
+    ai_assert(nullptr != piTexture);
+    ai_assert(nullptr != piTextureOut);
 
     bool bMustConvert = false;
     uintptr_t iElement = 3;
@@ -617,7 +616,7 @@ void CMaterialManager::HMtoNMIfNecessary(
     D3DLOCKED_RECT sRect;
     D3DSURFACE_DESC sDesc;
     piTexture->GetLevelDesc(0,&sDesc);
-    if (FAILED(piTexture->LockRect(0,&sRect,NULL,D3DLOCK_READONLY)))
+    if (FAILED(piTexture->LockRect(0,&sRect,nullptr,D3DLOCK_READONLY)))
     {
         return;
     }
@@ -627,7 +626,7 @@ void CMaterialManager::HMtoNMIfNecessary(
     {
         union
         {
-            struct {unsigned char b,g,r,a;};
+            struct {unsigned char b,g,r,a;} data;
             char _array[4];
         };
     };
@@ -646,7 +645,7 @@ void CMaterialManager::HMtoNMIfNecessary(
     {
         for (unsigned int x = 0; x <  sDesc.Width;++x)
         {
-            if (pcPointer->b != pcPointer->r || pcPointer->b != pcPointer->g)
+            if (pcPointer->data.b != pcPointer->data.r || pcPointer->data.b != pcPointer->data.g)
             {
                 bIsEqual = false;
                 break;
@@ -705,9 +704,9 @@ void CMaterialManager::HMtoNMIfNecessary(
                     aiColor3D clrColorLine;
                     for (unsigned int x = 0; x <  sDesc.Width;++x)
                     {
-                        clrColorLine.r += pcPointer->r;
-                        clrColorLine.g += pcPointer->g;
-                        clrColorLine.b += pcPointer->b;
+                        clrColorLine.r += pcPointer->data.r;
+                        clrColorLine.g += pcPointer->data.g;
+                        clrColorLine.b += pcPointer->data.b;
                         pcPointer++;
                     }
                     clrColor.r += clrColorLine.r /= (float)sDesc.Width;
@@ -739,17 +738,17 @@ void CMaterialManager::HMtoNMIfNecessary(
     // need to convert it NOW
     if (bMustConvert)
     {
-        D3DSURFACE_DESC sDesc;
-        piTexture->GetLevelDesc(0, &sDesc);
+        D3DSURFACE_DESC sDesc2;
+        piTexture->GetLevelDesc(0, &sDesc2);
 
         IDirect3DTexture9* piTempTexture;
         if(FAILED(g_piDevice->CreateTexture(
-            sDesc.Width,
-            sDesc.Height,
+            sDesc2.Width,
+            sDesc2.Height,
             piTexture->GetLevelCount(),
-            sDesc.Usage,
-            sDesc.Format,
-            sDesc.Pool, &piTempTexture, NULL)))
+            sDesc2.Usage,
+            sDesc2.Format,
+            sDesc2.Pool, &piTempTexture, nullptr)))
         {
             CLogDisplay::Instance().AddEntry(
                 "[ERROR] Unable to create normal map texture",
@@ -764,7 +763,7 @@ void CMaterialManager::HMtoNMIfNecessary(
         else /*if (0 == iElement)*/dwFlags = D3DX_CHANNEL_BLUE;
 
         if(FAILED(D3DXComputeNormalMap(piTempTexture,
-            piTexture,NULL,0,dwFlags,1.0f)))
+            piTexture,nullptr,0,dwFlags,1.0f)))
         {
             CLogDisplay::Instance().AddEntry(
                 "[ERROR] Unable to compute normal map from height map",
@@ -780,12 +779,12 @@ void CMaterialManager::HMtoNMIfNecessary(
 //-------------------------------------------------------------------------------
 bool CMaterialManager::HasAlphaPixels(IDirect3DTexture9* piTexture)
 {
-    ai_assert(NULL != piTexture);
+    ai_assert(nullptr != piTexture);
 
     D3DLOCKED_RECT sRect;
     D3DSURFACE_DESC sDesc;
     piTexture->GetLevelDesc(0,&sDesc);
-    if (FAILED(piTexture->LockRect(0,&sRect,NULL,D3DLOCK_READONLY)))
+    if (FAILED(piTexture->LockRect(0,&sRect,nullptr,D3DLOCK_READONLY)))
     {
         return false;
     }
@@ -823,8 +822,8 @@ bool CMaterialManager::HasAlphaPixels(IDirect3DTexture9* piTexture)
 int CMaterialManager::CreateMaterial(
     AssetHelper::MeshHelper* pcMesh,const aiMesh* pcSource)
 {
-    ai_assert(NULL != pcMesh);
-    ai_assert(NULL != pcSource);
+    ai_assert(nullptr != pcMesh);
+    ai_assert(nullptr != pcSource);
 
     ID3DXBuffer* piBuffer;
 
@@ -1060,29 +1059,29 @@ int CMaterialManager::CreateMaterial(
         }
         AssetHelper::MeshHelper* pc = g_pcAsset->apcMeshes[i];
 
-        if  ((pcMesh->piDiffuseTexture != NULL ? true : false) !=
-            (pc->piDiffuseTexture != NULL ? true : false))
+        if  ((pcMesh->piDiffuseTexture != nullptr ? true : false) !=
+            (pc->piDiffuseTexture != nullptr ? true : false))
             continue;
-        if  ((pcMesh->piSpecularTexture != NULL ? true : false) !=
-            (pc->piSpecularTexture != NULL ? true : false))
+        if  ((pcMesh->piSpecularTexture != nullptr ? true : false) !=
+            (pc->piSpecularTexture != nullptr ? true : false))
             continue;
-        if  ((pcMesh->piAmbientTexture != NULL ? true : false) !=
-            (pc->piAmbientTexture != NULL ? true : false))
+        if  ((pcMesh->piAmbientTexture != nullptr ? true : false) !=
+            (pc->piAmbientTexture != nullptr ? true : false))
             continue;
-        if  ((pcMesh->piEmissiveTexture != NULL ? true : false) !=
-            (pc->piEmissiveTexture != NULL ? true : false))
+        if  ((pcMesh->piEmissiveTexture != nullptr ? true : false) !=
+            (pc->piEmissiveTexture != nullptr ? true : false))
             continue;
-        if  ((pcMesh->piNormalTexture != NULL ? true : false) !=
-            (pc->piNormalTexture != NULL ? true : false))
+        if  ((pcMesh->piNormalTexture != nullptr ? true : false) !=
+            (pc->piNormalTexture != nullptr ? true : false))
             continue;
-        if  ((pcMesh->piOpacityTexture != NULL ? true : false) !=
-            (pc->piOpacityTexture != NULL ? true : false))
+        if  ((pcMesh->piOpacityTexture != nullptr ? true : false) !=
+            (pc->piOpacityTexture != nullptr ? true : false))
             continue;
-        if  ((pcMesh->piShininessTexture != NULL ? true : false) !=
-            (pc->piShininessTexture != NULL ? true : false))
+        if  ((pcMesh->piShininessTexture != nullptr ? true : false) !=
+            (pc->piShininessTexture != nullptr ? true : false))
             continue;
-        if  ((pcMesh->piLightmapTexture != NULL ? true : false) !=
-            (pc->piLightmapTexture != NULL ? true : false))
+        if  ((pcMesh->piLightmapTexture != nullptr ? true : false) !=
+            (pc->piLightmapTexture != nullptr ? true : false))
             continue;
         if ((pcMesh->eShadingMode != aiShadingMode_Gouraud ? true : false) !=
             (pc->eShadingMode != aiShadingMode_Gouraud ? true : false))
@@ -1239,13 +1238,13 @@ int CMaterialManager::CreateMaterial(
         sMacro[iCurrent].Definition = "1";
         ++iCurrent;
     }
-    sMacro[iCurrent].Name = NULL;
-    sMacro[iCurrent].Definition = NULL;
+    sMacro[iCurrent].Name = nullptr;
+    sMacro[iCurrent].Definition = nullptr;
 
     // compile the shader
     if(FAILED( D3DXCreateEffect(g_piDevice,
         g_szMaterialShader.c_str(),(UINT)g_szMaterialShader.length(),
-        (const D3DXMACRO*)sMacro,NULL,0,NULL,&pcMesh->piEffect,&piBuffer)))
+        (const D3DXMACRO*)sMacro,nullptr,0,nullptr,&pcMesh->piEffect,&piBuffer)))
     {
         // failed to compile the shader
         if( piBuffer)
@@ -1333,7 +1332,7 @@ int CMaterialManager::SetupMaterial (
     const aiMatrix4x4& pcCam,
     const aiVector3D& vPos)
 {
-    ai_assert(NULL != pcMesh);
+    ai_assert(nullptr != pcMesh);
     if (!pcMesh->piEffect)return 0;
 
     ID3DXEffect* piEnd = pcMesh->piEffect;
@@ -1476,7 +1475,7 @@ int CMaterialManager::SetupMaterial (
 //-------------------------------------------------------------------------------
 int CMaterialManager::EndMaterial (AssetHelper::MeshHelper* pcMesh)
 {
-    ai_assert(NULL != pcMesh);
+    ai_assert(nullptr != pcMesh);
     if (!pcMesh->piEffect)return 0;
 
     // end the effect
@@ -1490,4 +1489,5 @@ int CMaterialManager::EndMaterial (AssetHelper::MeshHelper* pcMesh)
 
     return 1;
 }
-}; // end namespace AssimpView
+
+} // end namespace AssimpView

tools/assimp_view/MessageProc.cpp

@@ -60,13 +60,13 @@ using namespace Assimp;
 COLORREF g_aclCustomColors[16] = {0};
 
 // Global registry key
-HKEY g_hRegistry = NULL;
+HKEY g_hRegistry = nullptr;
 
 // list of previous files (always 5)
 std::vector<std::string> g_aPreviousFiles;
 
 // history menu item
-HMENU g_hHistoryMenu = NULL;
+HMENU g_hHistoryMenu = nullptr;
 
 float g_fACMR = 3.0f;
 
@@ -89,10 +89,10 @@ void MakeFileAssociations() {
     char szTemp2[MAX_PATH];
     char szTemp[MAX_PATH + 10];
 
-    GetModuleFileName(NULL,szTemp2,MAX_PATH);
+    GetModuleFileName(nullptr,szTemp2,MAX_PATH);
     sprintf(szTemp,"%s %%1",szTemp2);
 
-    HKEY hRegistry = NULL;
+    HKEY hRegistry = nullptr;
 
     aiString list, tmp;
     aiGetExtensionList(&list);
@@ -104,15 +104,15 @@ void MakeFileAssociations() {
         ai_assert(sz[0] == '*');
         sprintf(buf,"Software\\Classes\\%s",sz+1);
 
-        RegCreateKeyEx(HKEY_CURRENT_USER,buf,0,NULL,0,KEY_ALL_ACCESS, NULL, &hRegistry,NULL);
+        RegCreateKeyEx(HKEY_CURRENT_USER,buf,0,nullptr,0,KEY_ALL_ACCESS, nullptr, &hRegistry,nullptr);
         RegSetValueEx(hRegistry,"",0,REG_SZ,(const BYTE*)"ASSIMPVIEW_CLASS",(DWORD)strlen("ASSIMPVIEW_CLASS")+1);
         RegCloseKey(hRegistry);
-    } while ((sz = strtok(NULL,";")));
+    } while ((sz = strtok(nullptr,";")) != nullptr);
 
-    RegCreateKeyEx(HKEY_CURRENT_USER,"Software\\Classes\\ASSIMPVIEW_CLASS",0,NULL,0,KEY_ALL_ACCESS, NULL, &hRegistry,NULL);
+    RegCreateKeyEx(HKEY_CURRENT_USER,"Software\\Classes\\ASSIMPVIEW_CLASS",0,nullptr,0,KEY_ALL_ACCESS, nullptr, &hRegistry,nullptr);
     RegCloseKey(hRegistry);
 
-    RegCreateKeyEx(HKEY_CURRENT_USER,"Software\\Classes\\ASSIMPVIEW_CLASS\\shell\\open\\command",0,NULL,0,KEY_ALL_ACCESS, NULL, &hRegistry,NULL);
+    RegCreateKeyEx(HKEY_CURRENT_USER,"Software\\Classes\\ASSIMPVIEW_CLASS\\shell\\open\\command",0,nullptr,0,KEY_ALL_ACCESS, nullptr, &hRegistry,nullptr);
     RegSetValueEx(hRegistry,"",0,REG_SZ,(const BYTE*)szTemp,(DWORD)strlen(szTemp)+1);
     RegCloseKey(hRegistry);
 
@@ -157,9 +157,9 @@ void HandleCommandLine(char* p_szCommand) {
 //-------------------------------------------------------------------------------
 void LoadLightColors() {
     DWORD dwTemp = 4;
-    RegQueryValueEx(g_hRegistry,"LightColor0",NULL,NULL, (BYTE*)&g_avLightColors[0],&dwTemp);
-    RegQueryValueEx(g_hRegistry,"LightColor1",NULL,NULL, (BYTE*)&g_avLightColors[1],&dwTemp);
-    RegQueryValueEx(g_hRegistry,"LightColor2",NULL,NULL, (BYTE*)&g_avLightColors[2],&dwTemp);
+    RegQueryValueEx(g_hRegistry,"LightColor0",nullptr,nullptr, (BYTE*)&g_avLightColors[0],&dwTemp);
+    RegQueryValueEx(g_hRegistry,"LightColor1",nullptr,nullptr, (BYTE*)&g_avLightColors[1],&dwTemp);
+    RegQueryValueEx(g_hRegistry,"LightColor2",nullptr,nullptr, (BYTE*)&g_avLightColors[2],&dwTemp);
 }
 
 //-------------------------------------------------------------------------------
@@ -190,10 +190,10 @@ void SaveCheckerPatternColors() {
 //-------------------------------------------------------------------------------
 void LoadCheckerPatternColors() {
     DWORD dwTemp = sizeof(D3DXVECTOR3);
-    RegQueryValueEx(g_hRegistry,"CheckerPattern0",NULL,NULL,
+    RegQueryValueEx(g_hRegistry,"CheckerPattern0",nullptr,nullptr,
         (BYTE*) /* jep, this is evil */ CDisplay::Instance().GetFirstCheckerColor(),&dwTemp);
 
-    RegQueryValueEx(g_hRegistry,"CheckerPattern1",NULL,NULL,
+    RegQueryValueEx(g_hRegistry,"CheckerPattern1",nullptr,nullptr,
         (BYTE*) /* jep, this is evil */ CDisplay::Instance().GetSecondCheckerColor(),&dwTemp);
 }
 
@@ -372,13 +372,13 @@ void ToggleUIState() {
     sRect2.top -= sRect.top;
 
     if (BST_UNCHECKED == IsDlgButtonChecked(g_hDlg,IDC_BLUBB)) {
-        SetWindowPos(g_hDlg,NULL,0,0,sRect.right-214,sRect.bottom,
+        SetWindowPos(g_hDlg,nullptr,0,0,sRect.right-214,sRect.bottom,
             SWP_NOMOVE | SWP_NOZORDER);
 
         SetWindowText(GetDlgItem(g_hDlg,IDC_BLUBB),">>");
         storeRegKey(false, "MultiSampling");
     } else {
-        SetWindowPos(g_hDlg,NULL,0,0,sRect.right+214,sRect.bottom,
+        SetWindowPos(g_hDlg,nullptr,0,0,sRect.right+214,sRect.bottom,
             SWP_NOMOVE | SWP_NOZORDER);
 
         storeRegKey(true, "LastUIState");
@@ -394,7 +394,7 @@ void LoadBGTexture() {
     char szFileName[MAX_PATH];
 
     DWORD dwTemp = MAX_PATH;
-    if(ERROR_SUCCESS != RegQueryValueEx(g_hRegistry,"TextureSrc",NULL,NULL, (BYTE*)szFileName,&dwTemp)) {
+    if(ERROR_SUCCESS != RegQueryValueEx(g_hRegistry,"TextureSrc",nullptr,nullptr, (BYTE*)szFileName,&dwTemp)) {
         // Key was not found. Use C:
         strcpy(szFileName,"");
     } else {
@@ -407,13 +407,13 @@ void LoadBGTexture() {
     }
     OPENFILENAME sFilename1 = {
         sizeof(OPENFILENAME),
-        g_hDlg,GetModuleHandle(NULL),
+        g_hDlg,GetModuleHandle(nullptr),
         "Textures\0*.png;*.dds;*.tga;*.bmp;*.tif;*.ppm;*.ppx;*.jpg;*.jpeg;*.exr\0*.*\0",
-        NULL, 0, 1,
-        szFileName, MAX_PATH, NULL, 0, NULL,
+        nullptr, 0, 1,
+        szFileName, MAX_PATH, nullptr, 0, nullptr,
         "Open texture as background",
         OFN_OVERWRITEPROMPT | OFN_HIDEREADONLY | OFN_NOCHANGEDIR,
-        0, 1, ".jpg", 0, NULL, NULL
+        0, 1, ".jpg", 0, nullptr, nullptr
     };
     if(GetOpenFileName(&sFilename1) == 0) return;
 
@@ -448,8 +448,8 @@ void DisplayColorDialog(D3DCOLOR* pclrResult) {
     clr.Flags = CC_RGBINIT | CC_FULLOPEN;
     clr.rgbResult = RGB((*pclrResult >> 16) & 0xff,(*pclrResult >> 8) & 0xff,*pclrResult & 0xff);
     clr.lpCustColors = g_aclCustomColors;
-    clr.lpfnHook = NULL;
-    clr.lpTemplateName = NULL;
+    clr.lpfnHook = nullptr;
+    clr.lpTemplateName = nullptr;
     clr.lCustData = 0;
 
     ChooseColor(&clr);
@@ -472,8 +472,8 @@ void DisplayColorDialog(D3DXVECTOR4* pclrResult) {
         clamp<unsigned char>(pclrResult->y * 255.0f),
         clamp<unsigned char>(pclrResult->z * 255.0f));
     clr.lpCustColors = g_aclCustomColors;
-    clr.lpfnHook = NULL;
-    clr.lpTemplateName = NULL;
+    clr.lpfnHook = nullptr;
+    clr.lpTemplateName = nullptr;
     clr.lCustData = 0;
 
     ChooseColor(&clr);
@@ -504,7 +504,7 @@ void LoadSkybox() {
     char szFileName[MAX_PATH];
 
     DWORD dwTemp = MAX_PATH;
-    if(ERROR_SUCCESS != RegQueryValueEx(g_hRegistry,"SkyBoxSrc",NULL,NULL,
+    if(ERROR_SUCCESS != RegQueryValueEx(g_hRegistry,"SkyBoxSrc",nullptr,nullptr,
         (BYTE*)szFileName,&dwTemp))
     {
         // Key was not found. Use C:
@@ -521,12 +521,12 @@ void LoadSkybox() {
     }
     OPENFILENAME sFilename1 = {
         sizeof(OPENFILENAME),
-        g_hDlg,GetModuleHandle(NULL),
-        "Skyboxes\0*.dds\0*.*\0", NULL, 0, 1,
-        szFileName, MAX_PATH, NULL, 0, NULL,
+        g_hDlg,GetModuleHandle(nullptr),
+        "Skyboxes\0*.dds\0*.*\0", nullptr, 0, 1,
+        szFileName, MAX_PATH, nullptr, 0, nullptr,
         "Open skybox as background",
         OFN_OVERWRITEPROMPT | OFN_HIDEREADONLY | OFN_NOCHANGEDIR,
-        0, 1, ".dds", 0, NULL, NULL
+        0, 1, ".dds", 0, nullptr, nullptr
     };
     if(GetOpenFileName(&sFilename1) == 0) return;
 
@@ -555,7 +555,7 @@ void SaveScreenshot() {
     char szFileName[MAX_PATH];
 
     DWORD dwTemp = MAX_PATH;
-    if(ERROR_SUCCESS != RegQueryValueEx(g_hRegistry,"ScreenShot",NULL,NULL, (BYTE*)szFileName,&dwTemp)) {
+    if(ERROR_SUCCESS != RegQueryValueEx(g_hRegistry,"ScreenShot",nullptr,nullptr, (BYTE*)szFileName,&dwTemp)) {
         // Key was not found. Use C:
         strcpy(szFileName,"");
     } else {
@@ -568,21 +568,21 @@ void SaveScreenshot() {
     }
     OPENFILENAME sFilename1 = {
         sizeof(OPENFILENAME),
-        g_hDlg,GetModuleHandle(NULL),
-        "PNG Images\0*.png", NULL, 0, 1,
-        szFileName, MAX_PATH, NULL, 0, NULL,
+        g_hDlg,GetModuleHandle(nullptr),
+        "PNG Images\0*.png", nullptr, 0, 1,
+        szFileName, MAX_PATH, nullptr, 0, nullptr,
         "Save Screenshot to file",
         OFN_OVERWRITEPROMPT | OFN_HIDEREADONLY | OFN_NOCHANGEDIR,
-        0, 1, ".png", 0, NULL, NULL
+        0, 1, ".png", 0, nullptr, nullptr
     };
     if(GetSaveFileName(&sFilename1) == 0) return;
 
     // Now store the file in the registry
     RegSetValueExA(g_hRegistry,"ScreenShot",0,REG_SZ,(const BYTE*)szFileName,MAX_PATH);
 
-    IDirect3DSurface9* pi = NULL;
+    IDirect3DSurface9* pi = nullptr;
     g_piDevice->GetRenderTarget(0,&pi);
-    if(!pi || FAILED(D3DXSaveSurfaceToFile(szFileName,D3DXIFF_PNG,pi,NULL,NULL))) {
+    if(!pi || FAILED(D3DXSaveSurfaceToFile(szFileName,D3DXIFF_PNG,pi,nullptr,nullptr))) {
         CLogDisplay::Instance().AddEntry("[ERROR] Unable to save screenshot",
             D3DCOLOR_ARGB(0xFF,0xFF,0,0));
     } else {
@@ -751,7 +751,7 @@ void LoadHistory() {
         DWORD dwTemp = MAX_PATH;
 
         szFileName[0] ='\0';
-        if(ERROR_SUCCESS == RegQueryValueEx(g_hRegistry,szName,NULL,NULL,
+        if(ERROR_SUCCESS == RegQueryValueEx(g_hRegistry,szName,nullptr,nullptr,
                 (BYTE*)szFileName,&dwTemp)) {
             g_aPreviousFiles[i] = std::string(szFileName);
         }
@@ -826,7 +826,7 @@ void OpenAsset() {
     char szFileName[MAX_PATH];
 
     DWORD dwTemp = MAX_PATH;
-    if(ERROR_SUCCESS != RegQueryValueEx(g_hRegistry,"CurrentApp",NULL,NULL, (BYTE*)szFileName,&dwTemp)) {
+    if(ERROR_SUCCESS != RegQueryValueEx(g_hRegistry,"CurrentApp",nullptr,nullptr, (BYTE*)szFileName,&dwTemp)) {
         // Key was not found. Use C:
         strcpy(szFileName,"");
     } else {
@@ -856,15 +856,15 @@ void OpenAsset() {
     ZeroMemory(&sFilename1, sizeof(sFilename1));
     sFilename1.lStructSize = sizeof(sFilename1);
     sFilename1.hwndOwner = g_hDlg;
-    sFilename1.hInstance = GetModuleHandle(NULL);
+    sFilename1.hInstance = GetModuleHandle(nullptr);
     sFilename1.lpstrFile = szFileName;
     sFilename1.lpstrFile[0] = '\0';
     sFilename1.nMaxFile = sizeof(szList);
     sFilename1.lpstrFilter = szList;
     sFilename1.nFilterIndex = 1;
-    sFilename1.lpstrFileTitle = NULL;
+    sFilename1.lpstrFileTitle = nullptr;
     sFilename1.nMaxFileTitle = 0;
-    sFilename1.lpstrInitialDir = NULL;
+    sFilename1.lpstrInitialDir = nullptr;
     sFilename1.Flags = OFN_OVERWRITEPROMPT | OFN_HIDEREADONLY | OFN_NOCHANGEDIR;
     if (GetOpenFileName(&sFilename1) == 0) {
         return;
@@ -942,7 +942,7 @@ void DoExport(size_t formatId) {
 
     char szFileName[MAX_PATH*2];
     DWORD dwTemp = sizeof(szFileName);
-    if(ERROR_SUCCESS == RegQueryValueEx(g_hRegistry,"ModelExportDest",NULL,NULL,(BYTE*)szFileName, &dwTemp)) {
+    if(ERROR_SUCCESS == RegQueryValueEx(g_hRegistry,"ModelExportDest",nullptr,nullptr,(BYTE*)szFileName, &dwTemp)) {
         ai_assert(strlen(szFileName) <= MAX_PATH);
 
         // invent a nice default file name
@@ -975,12 +975,12 @@ void DoExport(size_t formatId) {
     const std::string ext = "."+std::string(e->fileExtension);
     OPENFILENAME sFilename1 = {
         sizeof(OPENFILENAME),
-        g_hDlg,GetModuleHandle(NULL),
-        desc, NULL, 0, 1,
-        szFileName, MAX_PATH, NULL, 0, NULL,
+        g_hDlg,GetModuleHandle(nullptr),
+        desc, nullptr, 0, 1,
+        szFileName, MAX_PATH, nullptr, 0, nullptr,
         "Export asset",
         OFN_OVERWRITEPROMPT | OFN_HIDEREADONLY | OFN_NOCHANGEDIR,
-        0, 1, ext.c_str(), 0, NULL, NULL
+        0, 1, ext.c_str(), 0, nullptr, nullptr
     };
     if(::GetSaveFileName(&sFilename1) == 0) {
         return;
@@ -1036,9 +1036,9 @@ void InitUI() {
 
     // store the key in a global variable for later use
     RegCreateKeyEx(HKEY_CURRENT_USER,"Software\\ASSIMP\\Viewer",
-        0,NULL,0,KEY_ALL_ACCESS, NULL, &g_hRegistry,NULL);
+        0,nullptr,0,KEY_ALL_ACCESS, nullptr, &g_hRegistry,nullptr);
 
-    if(ERROR_SUCCESS != RegQueryValueEx(g_hRegistry,"LastUIState",NULL,NULL, (BYTE*)&dwValue,&dwTemp)) {
+    if(ERROR_SUCCESS != RegQueryValueEx(g_hRegistry,"LastUIState",nullptr,nullptr, (BYTE*)&dwValue,&dwTemp)) {
         dwValue = 1;
     }
     if (0 == dwValue) {
@@ -1054,7 +1054,7 @@ void InitUI() {
         sRect2.left -= sRect.left;
         sRect2.top -= sRect.top;
 
-        SetWindowPos(g_hDlg,NULL,0,0,sRect.right-214,sRect.bottom,
+        SetWindowPos(g_hDlg,nullptr,0,0,sRect.right-214,sRect.bottom,
             SWP_NOMOVE | SWP_NOZORDER);
         SetWindowText(GetDlgItem(g_hDlg,IDC_BLUBB),">>");
     } else {
@@ -1062,7 +1062,7 @@ void InitUI() {
     }
 
     // AutoRotate
-    if(ERROR_SUCCESS != RegQueryValueEx(g_hRegistry,"AutoRotate",NULL,NULL,
+    if(ERROR_SUCCESS != RegQueryValueEx(g_hRegistry,"AutoRotate",nullptr,nullptr,
         (BYTE*)&dwValue,&dwTemp))dwValue = 0;
     if (0 == dwValue) {
         g_sOptions.bRotate = false;
@@ -1073,7 +1073,7 @@ void InitUI() {
     }
 
     // MultipleLights
-    if(ERROR_SUCCESS != RegQueryValueEx(g_hRegistry,"MultipleLights",NULL,NULL,
+    if(ERROR_SUCCESS != RegQueryValueEx(g_hRegistry,"MultipleLights",nullptr,nullptr,
         (BYTE*)&dwValue,&dwTemp))dwValue = 0;
     if (0 == dwValue) {
         g_sOptions.b3Lights = false;
@@ -1084,7 +1084,7 @@ void InitUI() {
     }
 
     // Light rotate
-    if(ERROR_SUCCESS != RegQueryValueEx(g_hRegistry,"LightRotate",NULL,NULL,
+    if(ERROR_SUCCESS != RegQueryValueEx(g_hRegistry,"LightRotate",nullptr,nullptr,
         (BYTE*)&dwValue,&dwTemp))dwValue = 0;
     if (0 == dwValue) {
         g_sOptions.bLightRotate = false;
@@ -1095,7 +1095,7 @@ void InitUI() {
     }
 
     // NoSpecular
-    if (ERROR_SUCCESS != RegQueryValueEx(g_hRegistry, "NoSpecular", NULL, NULL, (BYTE*)&dwValue, &dwTemp)) {
+    if (ERROR_SUCCESS != RegQueryValueEx(g_hRegistry, "NoSpecular", nullptr, nullptr, (BYTE*)&dwValue, &dwTemp)) {
         dwValue = 0;
     }
     if (0 == dwValue) {
@@ -1107,7 +1107,7 @@ void InitUI() {
     }
 
     // LowQuality
-    if(ERROR_SUCCESS != RegQueryValueEx(g_hRegistry,"LowQuality",NULL,NULL,
+    if(ERROR_SUCCESS != RegQueryValueEx(g_hRegistry,"LowQuality",nullptr,nullptr,
         (BYTE*)&dwValue,&dwTemp))dwValue = 0;
     if (0 == dwValue) {
         g_sOptions.bLowQuality = false;
@@ -1118,7 +1118,7 @@ void InitUI() {
     }
 
     // LowQuality
-    if(ERROR_SUCCESS != RegQueryValueEx(g_hRegistry,"NoTransparency",NULL,NULL,
+    if(ERROR_SUCCESS != RegQueryValueEx(g_hRegistry,"NoTransparency",nullptr,nullptr,
         (BYTE*)&dwValue,&dwTemp))dwValue = 0;
     if (0 == dwValue) {
         g_sOptions.bNoAlphaBlending = false;
@@ -1129,7 +1129,7 @@ void InitUI() {
     }
 
     // DisplayNormals
-    if(ERROR_SUCCESS != RegQueryValueEx(g_hRegistry,"RenderNormals",NULL,NULL,
+    if(ERROR_SUCCESS != RegQueryValueEx(g_hRegistry,"RenderNormals",nullptr,nullptr,
         (BYTE*)&dwValue,&dwTemp))dwValue = 0;
     if (0 == dwValue) {
         g_sOptions.bRenderNormals = false;
@@ -1140,7 +1140,7 @@ void InitUI() {
     }
 
     // NoMaterials
-    if (ERROR_SUCCESS != RegQueryValueEx(g_hRegistry, "RenderMats", NULL, NULL,
+    if (ERROR_SUCCESS != RegQueryValueEx(g_hRegistry, "RenderMats", nullptr, nullptr,
         (BYTE*)&dwValue, &dwTemp)) {
         dwValue = 1;
     }
@@ -1153,7 +1153,7 @@ void InitUI() {
     }
 
     // MultiSampling
-    if(ERROR_SUCCESS != RegQueryValueEx(g_hRegistry,"MultiSampling",NULL,NULL,
+    if(ERROR_SUCCESS != RegQueryValueEx(g_hRegistry,"MultiSampling",nullptr,nullptr,
         (BYTE*)&dwValue,&dwTemp))dwValue = 1;
     if (0 == dwValue)
     {
@@ -1165,7 +1165,7 @@ void InitUI() {
     }
 
     // FPS Mode
-    if(ERROR_SUCCESS != RegQueryValueEx(g_hRegistry,"FPSView",NULL,NULL,
+    if(ERROR_SUCCESS != RegQueryValueEx(g_hRegistry,"FPSView",nullptr,nullptr,
         (BYTE*)&dwValue,&dwTemp))dwValue = 0;
     if (0 == dwValue) {
         g_bFPSView = false;
@@ -1176,7 +1176,7 @@ void InitUI() {
     }
 
     // WireFrame
-    if(ERROR_SUCCESS != RegQueryValueEx(g_hRegistry,"Wireframe",NULL,NULL,
+    if(ERROR_SUCCESS != RegQueryValueEx(g_hRegistry,"Wireframe",nullptr,nullptr,
         (BYTE*)&dwValue,&dwTemp))dwValue = 0;
     if (0 == dwValue)
     {
@@ -1189,7 +1189,7 @@ void InitUI() {
         CheckDlgButton(g_hDlg,IDC_TOGGLEWIRE,BST_CHECKED);
     }
 
-    if(ERROR_SUCCESS != RegQueryValueEx(g_hRegistry,"PostProcessing",NULL,NULL,(BYTE*)&dwValue,&dwTemp))
+    if(ERROR_SUCCESS != RegQueryValueEx(g_hRegistry,"PostProcessing",nullptr,nullptr,(BYTE*)&dwValue,&dwTemp))
         ppsteps = ppstepsdefault;
     else ppsteps = dwValue;
 
@@ -1458,7 +1458,7 @@ INT_PTR CALLBACK MessageProc(HWND hwndDlg,UINT uMsg, WPARAM wParam,LPARAM lParam
                 if (bDraw)
                 {
                     SetBkColor(pcStruct->hDC,RGB(0,0,0));
-                    MoveToEx(pcStruct->hDC,0,0,NULL);
+                    MoveToEx(pcStruct->hDC,0,0,nullptr);
                     LineTo(pcStruct->hDC,sRect.right-1,0);
                     LineTo(pcStruct->hDC,sRect.right-1,sRect.bottom-1);
                     LineTo(pcStruct->hDC,0,sRect.bottom-1);
@@ -1534,7 +1534,7 @@ INT_PTR CALLBACK MessageProc(HWND hwndDlg,UINT uMsg, WPARAM wParam,LPARAM lParam
             g_eClick = EClickPos_Outside;
             if (xPos2 >= fHalfX && xPos2 < fHalfX + (int)sDesc.Width &&
                 yPos2 >= fHalfY && yPos2 < fHalfY + (int)sDesc.Height &&
-                NULL != g_szImageMask)
+                nullptr != g_szImageMask)
                 {
                 // inside the texture. Lookup the grayscale value from it
                 xPos2 -= fHalfX;
@@ -1710,13 +1710,13 @@ INT_PTR CALLBACK MessageProc(HWND hwndDlg,UINT uMsg, WPARAM wParam,LPARAM lParam
             } else if (ID_TOOLS_LOGWINDOW == LOWORD(wParam)) {
                 CLogWindow::Instance().Show();
             } else if (ID__WEBSITE == LOWORD(wParam)) {
-                ShellExecute(NULL,"open","http://assimp.sourceforge.net","","",SW_SHOW);
+                ShellExecute(nullptr,"open","http://assimp.sourceforge.net","","",SW_SHOW);
             } else if (ID__WEBSITESF == LOWORD(wParam)) {
-                ShellExecute(NULL,"open","https://sourceforge.net/projects/assimp","","",SW_SHOW);
+                ShellExecute(nullptr,"open","https://sourceforge.net/projects/assimp","","",SW_SHOW);
             }  else if (ID_REPORTBUG == LOWORD(wParam)) {
-                ShellExecute(NULL,"open","https://sourceforge.net/tracker/?func=add&group_id=226462&atid=1067632","","",SW_SHOW);
+                ShellExecute(nullptr,"open","https://sourceforge.net/tracker/?func=add&group_id=226462&atid=1067632","","",SW_SHOW);
             } else if (ID_FR == LOWORD(wParam)) {
-                ShellExecute(NULL,"open","https://sourceforge.net/forum/forum.php?forum_id=817653","","",SW_SHOW);
+                ShellExecute(nullptr,"open","https://sourceforge.net/forum/forum.php?forum_id=817653","","",SW_SHOW);
             } else if (ID_TOOLS_CLEARLOG == LOWORD(wParam)) {
                 CLogWindow::Instance().Clear();
             } else if (ID_TOOLS_SAVELOGTOFILE == LOWORD(wParam)) {
@@ -1838,7 +1838,7 @@ INT_PTR CALLBACK MessageProc(HWND hwndDlg,UINT uMsg, WPARAM wParam,LPARAM lParam
             }
             else if (ID_IMPORTSETTINGS_OPENPOST == LOWORD(wParam))
             {
-                ShellExecute(NULL,"open","http://assimp.sourceforge.net/lib_html/ai_post_process_8h.html","","",SW_SHOW);
+                ShellExecute(nullptr,"open","http://assimp.sourceforge.net/lib_html/ai_post_process_8h.html","","",SW_SHOW);
             }
             else if (ID_TOOLS_ORIGINALNORMALS == LOWORD(wParam))
             {
@@ -1922,7 +1922,7 @@ INT_PTR CALLBACK MessageProc(HWND hwndDlg,UINT uMsg, WPARAM wParam,LPARAM lParam
                         DisplayColorDialog(&g_avLightColors[0]);
                         SaveLightColors();
                     }
-                    InvalidateRect(GetDlgItem(g_hDlg,IDC_LCOLOR1),NULL,TRUE);
+                    InvalidateRect(GetDlgItem(g_hDlg,IDC_LCOLOR1),nullptr,TRUE);
                     UpdateWindow(GetDlgItem(g_hDlg,IDC_LCOLOR1));
                     }
                 else if (IDC_LCOLOR2 == LOWORD(wParam))
@@ -1939,13 +1939,13 @@ INT_PTR CALLBACK MessageProc(HWND hwndDlg,UINT uMsg, WPARAM wParam,LPARAM lParam
                         DisplayColorDialog(&g_avLightColors[1]);
                         SaveLightColors();
                     }
-                    InvalidateRect(GetDlgItem(g_hDlg,IDC_LCOLOR2),NULL,TRUE);
+                    InvalidateRect(GetDlgItem(g_hDlg,IDC_LCOLOR2),nullptr,TRUE);
                     UpdateWindow(GetDlgItem(g_hDlg,IDC_LCOLOR2));
                     }
                 else if (IDC_LCOLOR3 == LOWORD(wParam))
                     {
                     DisplayColorDialog(&g_avLightColors[2]);
-                    InvalidateRect(GetDlgItem(g_hDlg,IDC_LCOLOR3),NULL,TRUE);
+                    InvalidateRect(GetDlgItem(g_hDlg,IDC_LCOLOR3),nullptr,TRUE);
                     UpdateWindow(GetDlgItem(g_hDlg,IDC_LCOLOR3));
                     SaveLightColors();
                 }
@@ -1966,11 +1966,11 @@ INT_PTR CALLBACK MessageProc(HWND hwndDlg,UINT uMsg, WPARAM wParam,LPARAM lParam
                         SaveLightColors();
                     }
 
-                    InvalidateRect(GetDlgItem(g_hDlg,IDC_LCOLOR1),NULL,TRUE);
+                    InvalidateRect(GetDlgItem(g_hDlg,IDC_LCOLOR1),nullptr,TRUE);
                     UpdateWindow(GetDlgItem(g_hDlg,IDC_LCOLOR1));
-                    InvalidateRect(GetDlgItem(g_hDlg,IDC_LCOLOR2),NULL,TRUE);
+                    InvalidateRect(GetDlgItem(g_hDlg,IDC_LCOLOR2),nullptr,TRUE);
                     UpdateWindow(GetDlgItem(g_hDlg,IDC_LCOLOR2));
-                    InvalidateRect(GetDlgItem(g_hDlg,IDC_LCOLOR3),NULL,TRUE);
+                    InvalidateRect(GetDlgItem(g_hDlg,IDC_LCOLOR3),nullptr,TRUE);
                     UpdateWindow(GetDlgItem(g_hDlg,IDC_LCOLOR3));
                     }
                 else if (IDC_NOSPECULAR == LOWORD(wParam))
@@ -2076,7 +2076,7 @@ INT_PTR CALLBACK ProgressMessageProc(HWND hwndDlg,UINT uMsg,
             SendDlgItemMessage(hwndDlg,IDC_PROGRESS,PBM_SETRANGE,0,
                 MAKELPARAM(0,500));
 
-            SetTimer(hwndDlg,0,40,NULL);
+            SetTimer(hwndDlg,0,40,nullptr);
             return TRUE;
 
         case WM_CLOSE:
@@ -2090,7 +2090,7 @@ INT_PTR CALLBACK ProgressMessageProc(HWND hwndDlg,UINT uMsg,
 #if 0
                 g_bLoadingCanceled = true;
                 TerminateThread(g_hThreadHandle,5);
-                g_pcAsset = NULL;
+                g_pcAsset = nullptr;
 
                 EndDialog(hwndDlg,0);
 #endif
@@ -2167,14 +2167,14 @@ int APIENTRY _tWinMain(HINSTANCE hInstance,
     // initialize the IDirect3D9 interface
     g_hInstance = hInstance;
     if (0 == InitD3D()) {
-        MessageBox(NULL,"Failed to initialize Direct3D 9",
+        MessageBox(nullptr,"Failed to initialize Direct3D 9",
             "ASSIMP ModelViewer",MB_OK);
         return -6;
     }
 
     // create the main dialog
     HWND hDlg = CreateDialog(hInstance,MAKEINTRESOURCE(IDD_DIALOGMAIN),
-        NULL,&MessageProc);
+        nullptr,&MessageProc);
 
     // ensure we get high priority
     ::SetPriorityClass(GetCurrentProcess(),HIGH_PRIORITY_CLASS);
@@ -2187,8 +2187,8 @@ int APIENTRY _tWinMain(HINSTANCE hInstance,
         Assimp::DefaultLogger::Debugging | Assimp::DefaultLogger::Info |
         Assimp::DefaultLogger::Err | Assimp::DefaultLogger::Warn);
 
-    if (NULL == hDlg) {
-        MessageBox(NULL,"Failed to create dialog from resource",
+    if (nullptr == hDlg) {
+        MessageBox(nullptr,"Failed to create dialog from resource",
             "ASSIMP ModelViewer",MB_OK);
         return -5;
     }
@@ -2202,7 +2202,7 @@ int APIENTRY _tWinMain(HINSTANCE hInstance,
 
     // create the D3D device object
     if (0 == CreateDevice(g_sOptions.bMultiSample,false,true)) {
-        MessageBox(NULL,"Failed to initialize Direct3D 9 (2)",
+        MessageBox(nullptr,"Failed to initialize Direct3D 9 (2)",
             "ASSIMP ModelViewer",MB_OK);
         return -4;
     }
@@ -2222,18 +2222,18 @@ int APIENTRY _tWinMain(HINSTANCE hInstance,
     };
     DWORD dwTemp = MAX_PATH;
     RegCreateKeyEx(HKEY_CURRENT_USER,
-        "Software\\ASSIMP\\Viewer",0,NULL,0,KEY_ALL_ACCESS, NULL, &hRegistry,NULL);
-    if(ERROR_SUCCESS == RegQueryValueEx(hRegistry,"LastSkyBoxSrc",NULL,NULL,
+        "Software\\ASSIMP\\Viewer",0,nullptr,0,KEY_ALL_ACCESS, nullptr, &hRegistry,nullptr);
+    if(ERROR_SUCCESS == RegQueryValueEx(hRegistry,"LastSkyBoxSrc",nullptr,nullptr,
         (BYTE*)szFileName,&dwTemp) && '\0' != szFileName[0])
         {
         CBackgroundPainter::Instance().SetCubeMapBG(szFileName);
         }
-    else if(ERROR_SUCCESS == RegQueryValueEx(hRegistry,"LastTextureSrc",NULL,NULL,
+    else if(ERROR_SUCCESS == RegQueryValueEx(hRegistry,"LastTextureSrc",nullptr,nullptr,
         (BYTE*)szFileName,&dwTemp) && '\0' != szFileName[0])
         {
         CBackgroundPainter::Instance().SetTextureBG(szFileName);
         }
-    else if(ERROR_SUCCESS == RegQueryValueEx(hRegistry,"Color",NULL,NULL,
+    else if(ERROR_SUCCESS == RegQueryValueEx(hRegistry,"Color",nullptr,nullptr,
         (BYTE*)&clrColor,&dwTemp))
         {
         CBackgroundPainter::Instance().SetColor(clrColor);
@@ -2251,7 +2251,7 @@ int APIENTRY _tWinMain(HINSTANCE hInstance,
     double g_dLastTime = 0;
     while( uMsg.message != WM_QUIT )
         {
-        if( PeekMessage( &uMsg, NULL, 0, 0, PM_REMOVE ) )
+        if( PeekMessage( &uMsg, nullptr, 0, 0, PM_REMOVE ) )
             {
             TranslateMessage( &uMsg );
             DispatchMessage( &uMsg );

tools/assimp_view/assimp_view.cpp

@@ -61,17 +61,17 @@ extern std::string g_szDefaultShader;
 extern std::string g_szPassThroughShader;
 
 //-------------------------------------------------------------------------------
-HINSTANCE g_hInstance				= NULL;
-HWND g_hDlg							= NULL;
-IDirect3D9* g_piD3D					= NULL;
-IDirect3DDevice9* g_piDevice		= NULL;
-IDirect3DVertexDeclaration9* gDefaultVertexDecl = NULL;
+HINSTANCE g_hInstance				= nullptr;
+HWND g_hDlg							= nullptr;
+IDirect3D9* g_piD3D					= nullptr;
+IDirect3DDevice9* g_piDevice		= nullptr;
+IDirect3DVertexDeclaration9* gDefaultVertexDecl = nullptr;
 double g_fFPS						= 0.0f;
 char g_szFileName[MAX_PATH];
-ID3DXEffect* g_piDefaultEffect		= NULL;
-ID3DXEffect* g_piNormalsEffect		= NULL;
-ID3DXEffect* g_piPassThroughEffect	= NULL;
-ID3DXEffect* g_piPatternEffect		= NULL;
+ID3DXEffect* g_piDefaultEffect		= nullptr;
+ID3DXEffect* g_piNormalsEffect		= nullptr;
+ID3DXEffect* g_piPassThroughEffect	= nullptr;
+ID3DXEffect* g_piPatternEffect		= nullptr;
 bool g_bMousePressed				= false;
 bool g_bMousePressedR				= false;
 bool g_bMousePressedM				= false;
@@ -79,10 +79,10 @@ bool g_bMousePressedBoth			= false;
 float g_fElpasedTime				= 0.0f;
 D3DCAPS9 g_sCaps;
 bool g_bLoadingFinished				= false;
-HANDLE g_hThreadHandle				= NULL;
+HANDLE g_hThreadHandle				= nullptr;
 float g_fWheelPos					= -10.0f;
 bool g_bLoadingCanceled				= false;
-IDirect3DTexture9* g_pcTexture		= NULL;
+IDirect3DTexture9* g_pcTexture		= nullptr;
 bool g_bPlay						= false;
 double g_dCurrent = 0.;
 
@@ -135,13 +135,13 @@ float g_fLightColor					= 1.0f;
 
 RenderOptions g_sOptions;
 Camera g_sCamera;
-AssetHelper *g_pcAsset				= NULL;
+AssetHelper *g_pcAsset				= nullptr;
 
 //
 // Contains the mask image for the HUD 
 // (used to determine the position of a click)
 //
-unsigned char* g_szImageMask		= NULL;
+unsigned char* g_szImageMask		= nullptr;
 
 float g_fLoadTime = 0.0f;
 
@@ -175,7 +175,7 @@ DWORD WINAPI LoadThreadProc(LPVOID lpParameter)
         aiProcess_ConvertToLeftHanded	   | // convert everything to D3D left handed space
         aiProcess_SortByPType              | // make 'clean' meshes which consist of a single typ of primitives
         0,
-        NULL,
+        nullptr,
         props);
 
     aiReleasePropertyStore(props);
@@ -186,7 +186,7 @@ DWORD WINAPI LoadThreadProc(LPVOID lpParameter)
     g_bLoadingFinished = true;
 
     // check whether the loading process has failed ...
-    if (NULL == g_pcAsset->pcScene)
+    if (nullptr == g_pcAsset->pcScene)
     {
         CLogDisplay::Instance().AddEntry("[ERROR] Unable to load this asset:",
             D3DCOLOR_ARGB(0xFF,0xFF,0,0));
@@ -223,7 +223,7 @@ int LoadAsset()
     DWORD dwID;
     g_bLoadingCanceled = false;
     g_pcAsset = new AssetHelper();
-    g_hThreadHandle = CreateThread(NULL,0,&LoadThreadProc,NULL,0,&dwID);
+    g_hThreadHandle = CreateThread(nullptr,0,&LoadThreadProc,nullptr,0,&dwID);
 
     if (!g_hThreadHandle)
     {
@@ -248,7 +248,7 @@ int LoadAsset()
         if (g_pcAsset)
         {
             delete g_pcAsset;
-            g_pcAsset = NULL;
+            g_pcAsset = nullptr;
         }
         return 0;
     }
@@ -328,7 +328,7 @@ int DeleteAsset(void) {
     delete[] g_pcAsset->apcMeshes;
     delete g_pcAsset->mAnimator;
     delete g_pcAsset;
-    g_pcAsset = NULL;
+    g_pcAsset = nullptr;
 
     // reset the caption of the viewer window
     SetWindowText(g_hDlg,AI_VIEW_CAPTION_BASE);
@@ -351,8 +351,8 @@ int DeleteAsset(void) {
 // piMatrix Transformation matrix of the graph at this position
 //-------------------------------------------------------------------------------
 int CalculateBounds(aiNode* piNode, aiVector3D* p_avOut, const aiMatrix4x4& piMatrix) {
-    ai_assert(NULL != piNode);
-    ai_assert(NULL != p_avOut);
+    ai_assert(nullptr != piNode);
+    ai_assert(nullptr != p_avOut);
 
     aiMatrix4x4 mTemp = piNode->mTransformation;
     mTemp.Transpose();
@@ -424,8 +424,8 @@ int ScaleAsset(void)
 //-------------------------------------------------------------------------------
 int GenerateNormalsAsLineList(AssetHelper::MeshHelper* pcMesh,const aiMesh* pcSource)
 {
-    ai_assert(NULL != pcMesh);
-    ai_assert(NULL != pcSource);
+    ai_assert(nullptr != pcMesh);
+    ai_assert(nullptr != pcSource);
 
     if (!pcSource->mNormals)return 0;
 
@@ -434,7 +434,7 @@ int GenerateNormalsAsLineList(AssetHelper::MeshHelper* pcMesh,const aiMesh* pcSo
         pcSource->mNumVertices * 2,
         D3DUSAGE_WRITEONLY,
         AssetHelper::LineVertex::GetFVF(),
-        D3DPOOL_DEFAULT, &pcMesh->piVBNormals,NULL)))
+        D3DPOOL_DEFAULT, &pcMesh->piVBNormals,nullptr)))
     {
         CLogDisplay::Instance().AddEntry("Failed to create vertex buffer for the normal list",
             D3DCOLOR_ARGB(0xFF,0xFF,0,0));
@@ -495,7 +495,7 @@ int CreateAssetData()
             mesh->mNumVertices,
             D3DUSAGE_WRITEONLY,
             0,
-            D3DPOOL_DEFAULT, &g_pcAsset->apcMeshes[i]->piVB,NULL)))	{
+            D3DPOOL_DEFAULT, &g_pcAsset->apcMeshes[i]->piVB,nullptr)))	{
             MessageBox(g_hDlg,"Failed to create vertex buffer",
                 "ASSIMP Viewer Utility",MB_OK);
             return 2;
@@ -505,7 +505,7 @@ int CreateAssetData()
         if (g_pcAsset->apcMeshes[i]->piOpacityTexture || 1.0f != g_pcAsset->apcMeshes[i]->fOpacity)
             dwUsage |= D3DUSAGE_DYNAMIC;
 
-        unsigned int nidx;
+        unsigned int nidx = 0;
         switch (mesh->mPrimitiveTypes) {
             case aiPrimitiveType_POINT:
                 nidx = 1;
@@ -534,7 +534,7 @@ int CreateAssetData()
                 D3DFMT_INDEX32,
                 D3DPOOL_DEFAULT, 
                 &g_pcAsset->apcMeshes[i]->piIB,
-                NULL)))
+                nullptr)))
             {
                 MessageBox(g_hDlg,"Failed to create 32 Bit index buffer",
                     "ASSIMP Viewer Utility",MB_OK);
@@ -560,7 +560,7 @@ int CreateAssetData()
                 D3DFMT_INDEX16,
                 D3DPOOL_DEFAULT,
                 &g_pcAsset->apcMeshes[i]->piIB,
-                NULL)))
+                nullptr)))
             {
                 MessageBox(g_hDlg,"Failed to create 16 Bit index buffer",
                     "ASSIMP Viewer Utility",MB_OK);
@@ -595,11 +595,11 @@ int CreateAssetData()
         {
             pbData2->vPosition = mesh->mVertices[x];
 
-            if (NULL == mesh->mNormals)
+            if (nullptr == mesh->mNormals)
                 pbData2->vNormal = aiVector3D(0.0f,0.0f,0.0f);
             else pbData2->vNormal = mesh->mNormals[x];
 
-            if (NULL == mesh->mTangents)	{
+            if (nullptr == mesh->mTangents)	{
                 pbData2->vTangent = aiVector3D(0.0f,0.0f,0.0f);
                 pbData2->vBitangent = aiVector3D(0.0f,0.0f,0.0f);
             }
@@ -639,7 +639,7 @@ int CreateAssetData()
                 ai_assert( weightsPerVertex[x].size() <= 4);
                 for( unsigned int a = 0; a < weightsPerVertex[x].size(); a++)
                 {
-                    boneIndices[a] = weightsPerVertex[x][a].mVertexId;
+                    boneIndices[a] = static_cast<unsigned char>(weightsPerVertex[x][a].mVertexId);
                     boneWeights[a] = (unsigned char) (weightsPerVertex[x][a].mWeight * 255.0f);
                 }
 
@@ -677,17 +677,17 @@ int DeleteAssetData(bool bNoMaterials)
         if(g_pcAsset->apcMeshes[i]->piVB)
         {
             g_pcAsset->apcMeshes[i]->piVB->Release();
-            g_pcAsset->apcMeshes[i]->piVB = NULL;
+            g_pcAsset->apcMeshes[i]->piVB = nullptr;
         }
         if(g_pcAsset->apcMeshes[i]->piVBNormals)
         {
             g_pcAsset->apcMeshes[i]->piVBNormals->Release();
-            g_pcAsset->apcMeshes[i]->piVBNormals = NULL;
+            g_pcAsset->apcMeshes[i]->piVBNormals = nullptr;
         }
         if(g_pcAsset->apcMeshes[i]->piIB)
         {
             g_pcAsset->apcMeshes[i]->piIB->Release();
-            g_pcAsset->apcMeshes[i]->piIB = NULL;
+            g_pcAsset->apcMeshes[i]->piIB = nullptr;
         }
 
         // TODO ... unfixed memory leak
@@ -703,42 +703,42 @@ int DeleteAssetData(bool bNoMaterials)
             if(g_pcAsset->apcMeshes[i]->piEffect)
             {
                 g_pcAsset->apcMeshes[i]->piEffect->Release();
-                g_pcAsset->apcMeshes[i]->piEffect = NULL;
+                g_pcAsset->apcMeshes[i]->piEffect = nullptr;
             }
             if(g_pcAsset->apcMeshes[i]->piDiffuseTexture)
             {
                 g_pcAsset->apcMeshes[i]->piDiffuseTexture->Release();
-                g_pcAsset->apcMeshes[i]->piDiffuseTexture = NULL;
+                g_pcAsset->apcMeshes[i]->piDiffuseTexture = nullptr;
             }
             if(g_pcAsset->apcMeshes[i]->piNormalTexture)
             {
                 g_pcAsset->apcMeshes[i]->piNormalTexture->Release();
-                g_pcAsset->apcMeshes[i]->piNormalTexture = NULL;
+                g_pcAsset->apcMeshes[i]->piNormalTexture = nullptr;
             }
             if(g_pcAsset->apcMeshes[i]->piSpecularTexture)
             {
                 g_pcAsset->apcMeshes[i]->piSpecularTexture->Release();
-                g_pcAsset->apcMeshes[i]->piSpecularTexture = NULL;
+                g_pcAsset->apcMeshes[i]->piSpecularTexture = nullptr;
             }
             if(g_pcAsset->apcMeshes[i]->piAmbientTexture)
             {
                 g_pcAsset->apcMeshes[i]->piAmbientTexture->Release();
-                g_pcAsset->apcMeshes[i]->piAmbientTexture = NULL;
+                g_pcAsset->apcMeshes[i]->piAmbientTexture = nullptr;
             }
             if(g_pcAsset->apcMeshes[i]->piEmissiveTexture)
             {
                 g_pcAsset->apcMeshes[i]->piEmissiveTexture->Release();
-                g_pcAsset->apcMeshes[i]->piEmissiveTexture = NULL;
+                g_pcAsset->apcMeshes[i]->piEmissiveTexture = nullptr;
             }
             if(g_pcAsset->apcMeshes[i]->piOpacityTexture)
             {
                 g_pcAsset->apcMeshes[i]->piOpacityTexture->Release();
-                g_pcAsset->apcMeshes[i]->piOpacityTexture = NULL;
+                g_pcAsset->apcMeshes[i]->piOpacityTexture = nullptr;
             }
             if(g_pcAsset->apcMeshes[i]->piShininessTexture)
             {
                 g_pcAsset->apcMeshes[i]->piShininessTexture->Release();
-                g_pcAsset->apcMeshes[i]->piShininessTexture = NULL;
+                g_pcAsset->apcMeshes[i]->piShininessTexture = nullptr;
             }
         }
     }
@@ -776,10 +776,10 @@ int SetupFPSView()
 //-------------------------------------------------------------------------------
 int InitD3D(void)
 {
-    if (NULL == g_piD3D)
+    if (nullptr == g_piD3D)
     {
         g_piD3D = Direct3DCreate9(D3D_SDK_VERSION);
-        if (NULL == g_piD3D)return 0;
+        if (nullptr == g_piD3D)return 0;
     }
     return 1;
 }
@@ -792,20 +792,20 @@ int InitD3D(void)
 int ShutdownD3D(void)
 {
     ShutdownDevice();
-    if (NULL != g_piD3D)
+    if (nullptr != g_piD3D)
     {
         g_piD3D->Release();
-        g_piD3D = NULL;
+        g_piD3D = nullptr;
     }
     return 1;
 }
 
 template<class TComPtr>
 inline 
-void SafeRelease(TComPtr *ptr) {
-    if (nullptr != g_piPassThroughEffect) {
-        g_piPassThroughEffect->Release();
-        g_piPassThroughEffect = nullptr;
+void SafeRelease(TComPtr *&ptr) {
+    if (nullptr != ptr) {
+        ptr->Release();
+        ptr = nullptr;
     }
 }
 
@@ -843,12 +843,12 @@ int ShutdownDevice(void)
 int CreateHUDTexture()
 {
     // lock the memory resource ourselves
-    HRSRC res = FindResource(NULL,MAKEINTRESOURCE(IDR_HUD),RT_RCDATA);
-    HGLOBAL hg = LoadResource(NULL,res);
+    HRSRC res = FindResource(nullptr,MAKEINTRESOURCE(IDR_HUD),RT_RCDATA);
+    HGLOBAL hg = LoadResource(nullptr,res);
     void* pData = LockResource(hg);
 
     if(FAILED(D3DXCreateTextureFromFileInMemoryEx(g_piDevice,
-        pData,SizeofResource(NULL,res),
+        pData,SizeofResource(nullptr,res),
         D3DX_DEFAULT_NONPOW2,
         D3DX_DEFAULT_NONPOW2,
         1,
@@ -858,15 +858,15 @@ int CreateHUDTexture()
         D3DX_DEFAULT,
         D3DX_DEFAULT,
         0,
-        NULL,
-        NULL,
+        nullptr,
+        nullptr,
         &g_pcTexture)))
     {
         CLogDisplay::Instance().AddEntry("[ERROR] Unable to load HUD texture",
             D3DCOLOR_ARGB(0xFF,0xFF,0,0));
 
-        g_pcTexture  = NULL;
-        g_szImageMask = NULL;
+        g_pcTexture  = nullptr;
+        g_szImageMask = nullptr;
 
         FreeResource(hg);
         return 0;
@@ -879,13 +879,13 @@ int CreateHUDTexture()
 
 
     // lock the memory resource ourselves
-    res = FindResource(NULL,MAKEINTRESOURCE(IDR_HUDMASK),RT_RCDATA);
-    hg = LoadResource(NULL,res);
+    res = FindResource(nullptr,MAKEINTRESOURCE(IDR_HUDMASK),RT_RCDATA);
+    hg = LoadResource(nullptr,res);
     pData = LockResource(hg);
 
     IDirect3DTexture9* pcTex;
     if(FAILED(D3DXCreateTextureFromFileInMemoryEx(g_piDevice,
-        pData,SizeofResource(NULL,res),
+        pData,SizeofResource(nullptr,res),
         sDesc.Width,
         sDesc.Height,
         1,
@@ -895,13 +895,13 @@ int CreateHUDTexture()
         D3DX_DEFAULT,
         D3DX_DEFAULT,
         0,
-        NULL,
-        NULL,
+        nullptr,
+        nullptr,
         &pcTex)))
     {
         CLogDisplay::Instance().AddEntry("[ERROR] Unable to load HUD mask texture",
             D3DCOLOR_ARGB(0xFF,0xFF,0,0));
-        g_szImageMask = NULL;
+        g_szImageMask = nullptr;
 
         FreeResource(hg);
         return 0;
@@ -911,7 +911,7 @@ int CreateHUDTexture()
 
     // lock the texture and copy it to get a pointer
     D3DLOCKED_RECT sRect;
-    pcTex->LockRect(0,&sRect,NULL,D3DLOCK_READONLY);
+    pcTex->LockRect(0,&sRect,nullptr,D3DLOCK_READONLY);
 
     unsigned char* szOut = new unsigned char[sDesc.Width * sDesc.Height];
     unsigned char* _szOut = szOut;
@@ -1023,14 +1023,14 @@ int CreateDevice (bool p_bMultiSample,bool p_bSuperSample,bool bHW /*= true*/)
     }
 
     // compile the default material shader (gray gouraud/phong)
-    ID3DXBuffer* piBuffer = NULL;
+    ID3DXBuffer* piBuffer = nullptr;
     if(FAILED( D3DXCreateEffect(g_piDevice,
         g_szDefaultShader.c_str(),
         (UINT)g_szDefaultShader.length(),
-        NULL,
-        NULL,
+        nullptr,
+        nullptr,
         AI_SHADER_COMPILE_FLAGS,
-        NULL,
+        nullptr,
         &g_piDefaultEffect,&piBuffer)))
     {
         if( piBuffer) 
@@ -1043,7 +1043,7 @@ int CreateDevice (bool p_bMultiSample,bool p_bSuperSample,bool bHW /*= true*/)
     if( piBuffer) 
     {
         piBuffer->Release();
-        piBuffer = NULL;
+        piBuffer = nullptr;
     }
 
     // use Fixed Function effect when working with shaderless cards
@@ -1053,7 +1053,7 @@ int CreateDevice (bool p_bMultiSample,bool p_bSuperSample,bool bHW /*= true*/)
     // create the shader used to draw the HUD
     if(FAILED( D3DXCreateEffect(g_piDevice,
         g_szPassThroughShader.c_str(),(UINT)g_szPassThroughShader.length(),
-        NULL,NULL,AI_SHADER_COMPILE_FLAGS,NULL,&g_piPassThroughEffect,&piBuffer)))
+        nullptr,nullptr,AI_SHADER_COMPILE_FLAGS,nullptr,&g_piPassThroughEffect,&piBuffer)))
     {
         if( piBuffer) 
         {
@@ -1065,7 +1065,7 @@ int CreateDevice (bool p_bMultiSample,bool p_bSuperSample,bool bHW /*= true*/)
     if( piBuffer) 
     {
         piBuffer->Release();
-        piBuffer = NULL;
+        piBuffer = nullptr;
     }
 
     // use Fixed Function effect when working with shaderless cards
@@ -1075,7 +1075,7 @@ int CreateDevice (bool p_bMultiSample,bool p_bSuperSample,bool bHW /*= true*/)
     // create the shader used to visualize normal vectors
     if(FAILED( D3DXCreateEffect(g_piDevice,
         g_szNormalsShader.c_str(),(UINT)g_szNormalsShader.length(),
-        NULL,NULL,AI_SHADER_COMPILE_FLAGS,NULL,&g_piNormalsEffect, &piBuffer)))
+        nullptr,nullptr,AI_SHADER_COMPILE_FLAGS,nullptr,&g_piNormalsEffect, &piBuffer)))
     {
         if( piBuffer) 
         {
@@ -1087,7 +1087,7 @@ int CreateDevice (bool p_bMultiSample,bool p_bSuperSample,bool bHW /*= true*/)
     if( piBuffer) 
     {
         piBuffer->Release();
-        piBuffer = NULL;
+        piBuffer = nullptr;
     }
 
     //MessageBox( g_hDlg, "Failed to create vertex declaration", "Init", MB_OK);