Merge branch 'master' into master

code/Common/DefaultLogger.cpp

@@ -107,7 +107,7 @@ LogStream* LogStream::createDefaultStream(aiDefaultLogStream    streams,
         return nullptr;
 #endif
 
-        // Platform-independent default streams
+    // Platform-independent default streams
     case aiDefaultLogStream_STDERR:
         return new StdOStreamLogStream(std::cerr);
     case aiDefaultLogStream_STDOUT:
@@ -121,7 +121,7 @@ LogStream* LogStream::createDefaultStream(aiDefaultLogStream    streams,
     };
 
     // For compilers without dead code path detection
-    return NULL;
+    return nullptr;
 }
 
 // ----------------------------------------------------------------------------------

code/Common/Exporter.cpp

@@ -106,97 +106,88 @@ void ExportSceneM3D(const char*, IOSystem*, const aiScene*, const ExportProperti
 void ExportSceneA3D(const char*, IOSystem*, const aiScene*, const ExportProperties*);
 void ExportAssimp2Json(const char* , IOSystem*, const aiScene* , const Assimp::ExportProperties*);
 
-// ------------------------------------------------------------------------------------------------
+
-// global array of all export formats which Assimp supports in its current build
+static void setupExporterArray(std::vector<Exporter::ExportFormatEntry> &exporters) {
-Exporter::ExportFormatEntry gExporters[] =
-{
 #ifndef ASSIMP_BUILD_NO_COLLADA_EXPORTER
-    Exporter::ExportFormatEntry( "collada", "COLLADA - Digital Asset Exchange Schema", "dae", &ExportSceneCollada ),
+	exporters.push_back(Exporter::ExportFormatEntry("collada", "COLLADA - Digital Asset Exchange Schema", "dae", &ExportSceneCollada));
 #endif
 
 #ifndef ASSIMP_BUILD_NO_X_EXPORTER
-    Exporter::ExportFormatEntry( "x", "X Files", "x", &ExportSceneXFile,
+	exporters.push_back(Exporter::ExportFormatEntry("x", "X Files", "x", &ExportSceneXFile,
-        aiProcess_MakeLeftHanded | aiProcess_FlipWindingOrder | aiProcess_FlipUVs ),
+			aiProcess_MakeLeftHanded | aiProcess_FlipWindingOrder | aiProcess_FlipUVs));
 #endif
 
 #ifndef ASSIMP_BUILD_NO_STEP_EXPORTER
-    Exporter::ExportFormatEntry( "stp", "Step Files", "stp", &ExportSceneStep, 0 ),
+	exporters.push_back(Exporter::ExportFormatEntry("stp", "Step Files", "stp", &ExportSceneStep, 0));
 #endif
 
 #ifndef ASSIMP_BUILD_NO_OBJ_EXPORTER
-    Exporter::ExportFormatEntry( "obj", "Wavefront OBJ format", "obj", &ExportSceneObj,
+	exporters.push_back(Exporter::ExportFormatEntry("obj", "Wavefront OBJ format", "obj", &ExportSceneObj,
-        aiProcess_GenSmoothNormals /*| aiProcess_PreTransformVertices */ ),
+			aiProcess_GenSmoothNormals /*| aiProcess_PreTransformVertices */));
-    Exporter::ExportFormatEntry( "objnomtl", "Wavefront OBJ format without material file", "obj", &ExportSceneObjNoMtl,
+	exporters.push_back(Exporter::ExportFormatEntry("objnomtl", "Wavefront OBJ format without material file", "obj", &ExportSceneObjNoMtl,
-        aiProcess_GenSmoothNormals /*| aiProcess_PreTransformVertices */ ),
+			aiProcess_GenSmoothNormals /*| aiProcess_PreTransformVertices */));
 #endif
 
 #ifndef ASSIMP_BUILD_NO_STL_EXPORTER
-    Exporter::ExportFormatEntry( "stl", "Stereolithography", "stl" , &ExportSceneSTL,
+	exporters.push_back(Exporter::ExportFormatEntry("stl", "Stereolithography", "stl", &ExportSceneSTL,
-        aiProcess_Triangulate | aiProcess_GenNormals | aiProcess_PreTransformVertices
+			aiProcess_Triangulate | aiProcess_GenNormals | aiProcess_PreTransformVertices));
-    ),
+	exporters.push_back(Exporter::ExportFormatEntry("stlb", "Stereolithography (binary)", "stl", &ExportSceneSTLBinary,
-    Exporter::ExportFormatEntry( "stlb", "Stereolithography (binary)", "stl" , &ExportSceneSTLBinary,
+			aiProcess_Triangulate | aiProcess_GenNormals | aiProcess_PreTransformVertices));
-        aiProcess_Triangulate | aiProcess_GenNormals | aiProcess_PreTransformVertices
-    ),
 #endif
 
 #ifndef ASSIMP_BUILD_NO_PLY_EXPORTER
-    Exporter::ExportFormatEntry( "ply", "Stanford Polygon Library", "ply" , &ExportScenePly,
+	exporters.push_back(Exporter::ExportFormatEntry("ply", "Stanford Polygon Library", "ply", &ExportScenePly,
-        aiProcess_PreTransformVertices
+			aiProcess_PreTransformVertices));
-    ),
+	exporters.push_back(Exporter::ExportFormatEntry("plyb", "Stanford Polygon Library (binary)", "ply", &ExportScenePlyBinary,
-    Exporter::ExportFormatEntry( "plyb", "Stanford Polygon Library (binary)", "ply", &ExportScenePlyBinary,
+			aiProcess_PreTransformVertices));
-        aiProcess_PreTransformVertices
-    ),
 #endif
 
 #ifndef ASSIMP_BUILD_NO_3DS_EXPORTER
-    Exporter::ExportFormatEntry( "3ds", "Autodesk 3DS (legacy)", "3ds" , &ExportScene3DS,
+	exporters.push_back(Exporter::ExportFormatEntry("3ds", "Autodesk 3DS (legacy)", "3ds", &ExportScene3DS,
-        aiProcess_Triangulate | aiProcess_SortByPType | aiProcess_JoinIdenticalVertices ),
+			aiProcess_Triangulate | aiProcess_SortByPType | aiProcess_JoinIdenticalVertices));
 #endif
 
 #ifndef ASSIMP_BUILD_NO_GLTF_EXPORTER
-    Exporter::ExportFormatEntry( "gltf2", "GL Transmission Format v. 2", "gltf", &ExportSceneGLTF2,
+	exporters.push_back(Exporter::ExportFormatEntry("gltf2", "GL Transmission Format v. 2", "gltf", &ExportSceneGLTF2,
-        aiProcess_JoinIdenticalVertices | aiProcess_Triangulate | aiProcess_SortByPType ),
+			aiProcess_JoinIdenticalVertices | aiProcess_Triangulate | aiProcess_SortByPType));
-    Exporter::ExportFormatEntry( "glb2", "GL Transmission Format v. 2 (binary)", "glb", &ExportSceneGLB2,
+	exporters.push_back(Exporter::ExportFormatEntry("glb2", "GL Transmission Format v. 2 (binary)", "glb", &ExportSceneGLB2,
-        aiProcess_JoinIdenticalVertices | aiProcess_Triangulate | aiProcess_SortByPType ),
+			aiProcess_JoinIdenticalVertices | aiProcess_Triangulate | aiProcess_SortByPType));
-    Exporter::ExportFormatEntry( "gltf", "GL Transmission Format", "gltf", &ExportSceneGLTF,
+	exporters.push_back(Exporter::ExportFormatEntry("gltf", "GL Transmission Format", "gltf", &ExportSceneGLTF,
-        aiProcess_JoinIdenticalVertices | aiProcess_Triangulate | aiProcess_SortByPType ),
+			aiProcess_JoinIdenticalVertices | aiProcess_Triangulate | aiProcess_SortByPType));
-    Exporter::ExportFormatEntry( "glb", "GL Transmission Format (binary)", "glb", &ExportSceneGLB,
+	exporters.push_back(Exporter::ExportFormatEntry("glb", "GL Transmission Format (binary)", "glb", &ExportSceneGLB,
-        aiProcess_JoinIdenticalVertices | aiProcess_Triangulate | aiProcess_SortByPType ),
+			aiProcess_JoinIdenticalVertices | aiProcess_Triangulate | aiProcess_SortByPType));
 #endif
 
 #ifndef ASSIMP_BUILD_NO_ASSBIN_EXPORTER
-    Exporter::ExportFormatEntry( "assbin", "Assimp Binary File", "assbin" , &ExportSceneAssbin, 0 ),
+	exporters.push_back(Exporter::ExportFormatEntry("assbin", "Assimp Binary File", "assbin", &ExportSceneAssbin, 0));
 #endif
 
 #ifndef ASSIMP_BUILD_NO_ASSXML_EXPORTER
-    Exporter::ExportFormatEntry( "assxml", "Assimp XML Document", "assxml" , &ExportSceneAssxml, 0 ),
+	exporters.push_back(Exporter::ExportFormatEntry("assxml", "Assimp XML Document", "assxml", &ExportSceneAssxml, 0));
 #endif
 
 #ifndef ASSIMP_BUILD_NO_X3D_EXPORTER
-    Exporter::ExportFormatEntry( "x3d", "Extensible 3D", "x3d" , &ExportSceneX3D, 0 ),
+	exporters.push_back(Exporter::ExportFormatEntry("x3d", "Extensible 3D", "x3d", &ExportSceneX3D, 0));
 #endif
 
 #ifndef ASSIMP_BUILD_NO_FBX_EXPORTER
-    Exporter::ExportFormatEntry( "fbx", "Autodesk FBX (binary)", "fbx", &ExportSceneFBX, 0 ),
+	exporters.push_back(Exporter::ExportFormatEntry("fbx", "Autodesk FBX (binary)", "fbx", &ExportSceneFBX, 0));
-    Exporter::ExportFormatEntry( "fbxa", "Autodesk FBX (ascii)", "fbx", &ExportSceneFBXA, 0 ),
+	exporters.push_back(Exporter::ExportFormatEntry("fbxa", "Autodesk FBX (ascii)", "fbx", &ExportSceneFBXA, 0));
 #endif
 
 #ifndef ASSIMP_BUILD_NO_M3D_EXPORTER
-    Exporter::ExportFormatEntry( "m3d", "Model 3D (binary)", "m3d", &ExportSceneM3D, 0 ),
+	exporters.push_back(Exporter::ExportFormatEntry("m3d", "Model 3D (binary)", "m3d", &ExportSceneM3D, 0));
-    Exporter::ExportFormatEntry( "a3d", "Model 3D (ascii)",  "m3d", &ExportSceneA3D, 0 ),
+	exporters.push_back(Exporter::ExportFormatEntry("a3d", "Model 3D (ascii)", "m3d", &ExportSceneA3D, 0));
 #endif
 
 #ifndef ASSIMP_BUILD_NO_3MF_EXPORTER
-    Exporter::ExportFormatEntry( "3mf", "The 3MF-File-Format", "3mf", &ExportScene3MF, 0 ),
+	exporters.push_back(Exporter::ExportFormatEntry("3mf", "The 3MF-File-Format", "3mf", &ExportScene3MF, 0));
 #endif
 
 #ifndef ASSIMP_BUILD_NO_ASSJSON_EXPORTER
-    Exporter::ExportFormatEntry( "assjson", "Assimp JSON Document", "json", &ExportAssimp2Json, 0)
+	exporters.push_back(Exporter::ExportFormatEntry("assjson", "Assimp JSON Document", "json", &ExportAssimp2Json, 0));
 #endif
-};
+}
-
-#define ASSIMP_NUM_EXPORTERS (sizeof(gExporters)/sizeof(gExporters[0]))
-
 
 class ExporterPimpl {
 public:
@@ -212,10 +203,7 @@ public:
         GetPostProcessingStepInstanceList(mPostProcessingSteps);
 
         // grab all built-in exporters
-        if ( 0 != ( ASSIMP_NUM_EXPORTERS ) ) {
+		setupExporterArray(mExporters);
-            mExporters.resize( ASSIMP_NUM_EXPORTERS );
-            std::copy( gExporters, gExporters + ASSIMP_NUM_EXPORTERS, mExporters.begin() );
-        }
     }
 
     ~ExporterPimpl() {
@@ -259,24 +247,28 @@ Exporter :: Exporter()
 
 // ------------------------------------------------------------------------------------------------
 Exporter::~Exporter() {
-    FreeBlob();
+	ai_assert(nullptr != pimpl);
+	FreeBlob();
     delete pimpl;
 }
 
 // ------------------------------------------------------------------------------------------------
 void Exporter::SetIOHandler( IOSystem* pIOHandler) {
-    pimpl->mIsDefaultIOHandler = !pIOHandler;
+	ai_assert(nullptr != pimpl);
+	pimpl->mIsDefaultIOHandler = !pIOHandler;
     pimpl->mIOSystem.reset(pIOHandler);
 }
 
 // ------------------------------------------------------------------------------------------------
 IOSystem* Exporter::GetIOHandler() const {
-    return pimpl->mIOSystem.get();
+	ai_assert(nullptr != pimpl);
+	return pimpl->mIOSystem.get();
 }
 
 // ------------------------------------------------------------------------------------------------
 bool Exporter::IsDefaultIOHandler() const {
-    return pimpl->mIsDefaultIOHandler;
+	ai_assert(nullptr != pimpl);
+	return pimpl->mIsDefaultIOHandler;
 }
 
 // ------------------------------------------------------------------------------------------------
@@ -302,6 +294,7 @@ void Exporter::SetProgressHandler(ProgressHandler* pHandler) {
 // ------------------------------------------------------------------------------------------------
 const aiExportDataBlob* Exporter::ExportToBlob( const aiScene* pScene, const char* pFormatId,
                                                 unsigned int pPreprocessing, const ExportProperties* pProperties) {
+	ai_assert(nullptr != pimpl);
     if (pimpl->blob) {
         delete pimpl->blob;
         pimpl->blob = nullptr;
@@ -326,7 +319,7 @@ const aiExportDataBlob* Exporter::ExportToBlob( const aiScene* pScene, const cha
 aiReturn Exporter::Export( const aiScene* pScene, const char* pFormatId, const char* pPath,
         unsigned int pPreprocessing, const ExportProperties* pProperties) {
     ASSIMP_BEGIN_EXCEPTION_REGION();
-
+	ai_assert(nullptr != pimpl);
     // when they create scenes from scratch, users will likely create them not in verbose
     // format. They will likely not be aware that there is a flag in the scene to indicate
     // this, however. To avoid surprises and bug reports, we check for duplicates in
@@ -473,11 +466,13 @@ aiReturn Exporter::Export( const aiScene* pScene, const char* pFormatId, const c
 
 // ------------------------------------------------------------------------------------------------
 const char* Exporter::GetErrorString() const {
+	ai_assert(nullptr != pimpl);
     return pimpl->mError.c_str();
 }
 
 // ------------------------------------------------------------------------------------------------
 void Exporter::FreeBlob() {
+	ai_assert(nullptr != pimpl);
     delete pimpl->blob;
     pimpl->blob = nullptr;
 
@@ -486,30 +481,34 @@ void Exporter::FreeBlob() {
 
 // ------------------------------------------------------------------------------------------------
 const aiExportDataBlob* Exporter::GetBlob() const {
-    return pimpl->blob;
+	ai_assert(nullptr != pimpl);
+	return pimpl->blob;
 }
 
 // ------------------------------------------------------------------------------------------------
 const aiExportDataBlob* Exporter::GetOrphanedBlob() const {
-    const aiExportDataBlob* tmp = pimpl->blob;
+	ai_assert(nullptr != pimpl);
+	const aiExportDataBlob *tmp = pimpl->blob;
     pimpl->blob = nullptr;
     return tmp;
 }
 
 // ------------------------------------------------------------------------------------------------
 size_t Exporter::GetExportFormatCount() const {
+	ai_assert(nullptr != pimpl);
     return pimpl->mExporters.size();
 }
 
 // ------------------------------------------------------------------------------------------------
 const aiExportFormatDesc* Exporter::GetExportFormatDescription( size_t index ) const {
-    if (index >= GetExportFormatCount()) {
+	ai_assert(nullptr != pimpl);
+	if (index >= GetExportFormatCount()) {
         return nullptr;
     }
 
     // Return from static storage if the requested index is built-in.
-    if (index < sizeof(gExporters) / sizeof(gExporters[0])) {
+	if (index < pimpl->mExporters.size()) {
-        return &gExporters[index].mDescription;
+		return &pimpl->mExporters[index].mDescription;
     }
 
     return &pimpl->mExporters[index].mDescription;
@@ -517,7 +516,8 @@ const aiExportFormatDesc* Exporter::GetExportFormatDescription( size_t index ) c
 
 // ------------------------------------------------------------------------------------------------
 aiReturn Exporter::RegisterExporter(const ExportFormatEntry& desc) {
-    for(const ExportFormatEntry& e : pimpl->mExporters) {
+	ai_assert(nullptr != pimpl);
+	for (const ExportFormatEntry &e : pimpl->mExporters) {
         if (!strcmp(e.mDescription.id,desc.mDescription.id)) {
             return aiReturn_FAILURE;
         }
@@ -529,7 +529,8 @@ aiReturn Exporter::RegisterExporter(const ExportFormatEntry& desc) {
 
 // ------------------------------------------------------------------------------------------------
 void Exporter::UnregisterExporter(const char* id) {
-    for(std::vector<ExportFormatEntry>::iterator it = pimpl->mExporters.begin();
+	ai_assert(nullptr != pimpl);
+	for (std::vector<ExportFormatEntry>::iterator it = pimpl->mExporters.begin();
             it != pimpl->mExporters.end(); ++it) {
         if (!strcmp((*it).mDescription.id,id)) {
             pimpl->mExporters.erase(it);

code/Material/MaterialSystem.cpp

@@ -471,12 +471,12 @@ aiReturn aiMaterial::AddBinaryProperty (const void* pInput,
     aiPropertyTypeInfo pType
     )
 {
-    ai_assert( pInput != NULL );
+    ai_assert( pInput != nullptr );
-    ai_assert( pKey != NULL );
+	ai_assert(pKey != nullptr );
     ai_assert( 0 != pSizeInBytes );
 
     if ( 0 == pSizeInBytes ) {
-
+		return AI_FAILURE;
     }
 
     // first search the list whether there is already an entry with this key

code/PostProcessing/ValidateDataStructure.cpp

@@ -603,15 +603,18 @@ void ValidateDSProcess::SearchForInvalidTextures(const aiMaterial* pMaterial,
         ReportError("%s #%i is set, but there are only %i %s textures",
             szType,iIndex,iNumIndices,szType);
     }
-    if (!iNumIndices)return;
+	if (!iNumIndices) {
+		return;
+	}
     std::vector<aiTextureMapping> mappings(iNumIndices);
 
     // Now check whether all UV indices are valid ...
     bool bNoSpecified = true;
-    for (unsigned int i = 0; i < pMaterial->mNumProperties;++i)
+    for (unsigned int i = 0; i < pMaterial->mNumProperties;++i) {
-    {
         aiMaterialProperty* prop = pMaterial->mProperties[i];
-        if (prop->mSemantic != type)continue;
+		if (prop->mSemantic != type) {
+			continue;
+		}
 
         if ((int)prop->mIndex >= iNumIndices)
         {
@@ -634,7 +637,7 @@ void ValidateDSProcess::SearchForInvalidTextures(const aiMaterial* pMaterial,
                 ReportError("Material property %s%i is expected to be 5 floats large (size is %i)",
                     prop->mKey.data,prop->mIndex, prop->mDataLength);
             }
-            mappings[prop->mIndex] = *((aiTextureMapping*)prop->mData);
+			//mappings[prop->mIndex] = ((aiUVTransform*)prop->mData);
         }
         else if (!::strcmp(prop->mKey.data,"$tex.uvwsrc")) {
             if (aiPTI_Integer != prop->mType || sizeof(int) > prop->mDataLength)

code/glTF/glTFAsset.inl

@@ -1427,9 +1427,6 @@ inline void Asset::ReadExtensionsUsed(Document& doc)
         }
     }
 
-    #define CHECK_EXT(EXT) \
-        if (exts.find(#EXT) != exts.end()) extensionsUsed.EXT = true;
-
     CHECK_EXT(KHR_binary_glTF);
     CHECK_EXT(KHR_materials_common);
 

code/glTF/glTFCommon.h

@@ -188,7 +188,7 @@ namespace glTFCommon {
         size_t DecodeBase64(const char* in, size_t inLength, uint8_t*& out);
 
         inline
-            size_t DecodeBase64(const char* in, uint8_t*& out) {
+        size_t DecodeBase64(const char* in, uint8_t*& out) {
             return DecodeBase64(in, strlen(in), out);
         }
 
@@ -221,25 +221,22 @@ namespace glTFCommon {
         };
 
         inline
-            char EncodeCharBase64(uint8_t b) {
+        char EncodeCharBase64(uint8_t b) {
             return "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/="[size_t(b)];
         }
 
         inline
-            uint8_t DecodeCharBase64(char c) {
+        uint8_t DecodeCharBase64(char c) {
             return DATA<true>::tableDecodeBase64[size_t(c)]; // TODO faster with lookup table or ifs?
-            /*if (c >= 'A' && c <= 'Z') return c - 'A';
-            if (c >= 'a' && c <= 'z') return c - 'a' + 26;
-            if (c >= '0' && c <= '9') return c - '0' + 52;
-            if (c == '+') return 62;
-            if (c == '/') return 63;
-            return 64; // '-' */
         }
 
         size_t DecodeBase64(const char* in, size_t inLength, uint8_t*& out);
 
         void EncodeBase64(const uint8_t* in, size_t inLength, std::string& out);
-    }
+    } // namespace Util
+
+#define CHECK_EXT(EXT) \
+	if (exts.find(#EXT) != exts.end()) extensionsUsed.EXT = true;
 
 }
 

code/glTF2/glTF2Asset.h

@@ -685,6 +685,13 @@ namespace glTF2
         Ref<Texture> texture;
         unsigned int index;
         unsigned int texCoord = 0;
+
+        bool textureTransformSupported = false;
+        struct TextureTransformExt {
+			float offset[2];
+			float rotation;
+			float scale[2];
+		} TextureTransformExt_t;
     };
 
     struct NormalTextureInfo : TextureInfo
@@ -1024,7 +1031,7 @@ namespace glTF2
             bool KHR_materials_pbrSpecularGlossiness;
             bool KHR_materials_unlit;
             bool KHR_lights_punctual;
-
+			bool KHR_texture_transform;
         } extensionsUsed;
 
         AssetMetadata asset;

code/glTF2/glTF2Asset.inl

@@ -800,8 +800,34 @@ inline void Texture::Read(Value& obj, Asset& r)
 }
 
 namespace {
-    inline void SetTextureProperties(Asset& r, Value* prop, TextureInfo& out)
+    inline void SetTextureProperties(Asset& r, Value* prop, TextureInfo& out) {
-    {
+	    if (r.extensionsUsed.KHR_texture_transform) {
+            if (Value *extensions = FindObject(*prop, "extensions")) {
+				out.textureTransformSupported = true;
+                if (Value *pKHR_texture_transform = FindObject(*extensions, "KHR_texture_transform")) {
+					if (Value *array = FindArray(*pKHR_texture_transform, "offset")) {
+						out.TextureTransformExt_t.offset[0] = (*array)[0].GetFloat();
+						out.TextureTransformExt_t.offset[1] = (*array)[1].GetFloat();
+					} else {
+						out.TextureTransformExt_t.offset[0] = 0;
+						out.TextureTransformExt_t.offset[1] = 0;
+					}      
+					
+                    if (!ReadMember(*pKHR_texture_transform, "rotation", out.TextureTransformExt_t.rotation)) {
+						out.TextureTransformExt_t.rotation = 0;					
+                    }
+					
+                    if (Value *array = FindArray(*pKHR_texture_transform, "scale")) {
+						out.TextureTransformExt_t.scale[0] = (*array)[0].GetFloat();
+						out.TextureTransformExt_t.scale[1] = (*array)[1].GetFloat();
+					} else {
+						out.TextureTransformExt_t.scale[0] = 1;
+						out.TextureTransformExt_t.scale[1] = 1;
+                    }
+				}
+			}
+        }
+
         if (Value* index = FindUInt(*prop, "index")) {
             out.texture = r.textures.Retrieve(index->GetUint());
         }
@@ -877,6 +903,9 @@ inline void Material::Read(Value& material, Asset& r)
             }
         }
 
+        if (r.extensionsUsed.KHR_texture_transform) {
+		}
+
         unlit = nullptr != FindObject(*extensions, "KHR_materials_unlit");
     }
 }
@@ -1463,12 +1492,10 @@ inline void Asset::ReadExtensionsUsed(Document& doc)
         }
     }
 
-    #define CHECK_EXT(EXT) \
-        if (exts.find(#EXT) != exts.end()) extensionsUsed.EXT = true;
-
     CHECK_EXT(KHR_materials_pbrSpecularGlossiness);
     CHECK_EXT(KHR_materials_unlit);
     CHECK_EXT(KHR_lights_punctual);
+	CHECK_EXT(KHR_texture_transform);
 
     #undef CHECK_EXT
 }

code/glTF2/glTF2Exporter.h

@@ -74,6 +74,7 @@ namespace glTF2
     struct Texture;
 
     // Vec/matrix types, as raw float arrays
+	typedef float (vec2)[2];
     typedef float (vec3)[3];
     typedef float (vec4)[4];
 }

include/assimp/Exporter.hpp

@@ -5,8 +5,6 @@ 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,

include/assimp/defs.h

@@ -306,7 +306,11 @@ static const ai_real ai_epsilon = (ai_real) 0.00001;
 #define AI_MAX_ALLOC(type) ((256U * 1024 * 1024) / sizeof(type))
 
 #ifndef _MSC_VER
-#  define AI_NO_EXCEPT noexcept
+#  if __cplusplus >= 201103L // C++11
+#    define AI_NO_EXCEPT noexcept
+#  else
+#    define AI_NO_EXCEPT
+#  endif
 #else
 #  if (_MSC_VER >= 1915 )
 #    define AI_NO_EXCEPT noexcept

samples/SimpleTexturedDirectx11/CMakeLists.txt

@@ -0,0 +1,46 @@
+FIND_PACKAGE(DirectX)
+
+IF ( MSVC )
+  SET(M_LIB)
+ENDIF ( MSVC )
+
+if ( MSVC )
+  ADD_DEFINITIONS( -D_SCL_SECURE_NO_WARNINGS )
+  ADD_DEFINITIONS( -D_CRT_SECURE_NO_WARNINGS )
+  REMOVE_DEFINITIONS( -DUNICODE -D_UNICODE )
+endif ( MSVC )
+
+INCLUDE_DIRECTORIES(
+  ${Assimp_SOURCE_DIR}/include
+  ${Assimp_SOURCE_DIR}/code
+  ${OPENGL_INCLUDE_DIR}
+  ${GLUT_INCLUDE_DIR}
+  ${Assimp_SOURCE_DIR}/samples/freeglut/include
+)
+
+LINK_DIRECTORIES(
+  ${Assimp_BINARY_DIR}
+  ${Assimp_BINARY_DIR}/lib
+)
+
+ADD_EXECUTABLE( assimp_simpletextureddirectx11 WIN32
+  SimpleTexturedDirectx11/Mesh.h 
+  SimpleTexturedDirectx11/ModelLoader.cpp
+  SimpleTexturedDirectx11/ModelLoader.h
+  #SimpleTexturedDirectx11/PixelShader.hlsl
+  SimpleTexturedDirectx11/TextureLoader.cpp
+  SimpleTexturedDirectx11/TextureLoader.h 
+  #SimpleTexturedDirectx11/VertexShader.hlsl  
+  SimpleTexturedDirectx11/main.cpp
+)
+
+SET_PROPERTY(TARGET assimp_simpletextureddirectx11 PROPERTY DEBUG_POSTFIX ${CMAKE_DEBUG_POSTFIX})
+
+TARGET_LINK_LIBRARIES( assimp_simpletextureddirectx11 assimp ${DirectX_LIBRARY} comctl32.lib winmm.lib )
+SET_TARGET_PROPERTIES( assimp_simpletextureddirectx11 PROPERTIES
+  OUTPUT_NAME assimp_simpletextureddirectx11
+)
+
+INSTALL( TARGETS assimp_simpletextureddirectx11
+  DESTINATION "${ASSIMP_BIN_INSTALL_DIR}" COMPONENT assimp-dev
+)

samples/SimpleTexturedDirectx11/SimpleTexturedDirectx11.sln

@@ -1,28 +0,0 @@
-
-Microsoft Visual Studio Solution File, Format Version 12.00
-# Visual Studio 15
-VisualStudioVersion = 15.0.26228.9
-MinimumVisualStudioVersion = 10.0.40219.1
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "SimpleTexturedDirectx11", "SimpleTexturedDirectx11\SimpleTexturedDirectx11.vcxproj", "{E3B160B5-E71F-4F3F-9310-B8F156F736D8}"
-EndProject
-Global
-	GlobalSection(SolutionConfigurationPlatforms) = preSolution
-		Debug|x64 = Debug|x64
-		Debug|x86 = Debug|x86
-		Release|x64 = Release|x64
-		Release|x86 = Release|x86
-	EndGlobalSection
-	GlobalSection(ProjectConfigurationPlatforms) = postSolution
-		{E3B160B5-E71F-4F3F-9310-B8F156F736D8}.Debug|x64.ActiveCfg = Debug|x64
-		{E3B160B5-E71F-4F3F-9310-B8F156F736D8}.Debug|x64.Build.0 = Debug|x64
-		{E3B160B5-E71F-4F3F-9310-B8F156F736D8}.Debug|x86.ActiveCfg = Debug|Win32
-		{E3B160B5-E71F-4F3F-9310-B8F156F736D8}.Debug|x86.Build.0 = Debug|Win32
-		{E3B160B5-E71F-4F3F-9310-B8F156F736D8}.Release|x64.ActiveCfg = Release|x64
-		{E3B160B5-E71F-4F3F-9310-B8F156F736D8}.Release|x64.Build.0 = Release|x64
-		{E3B160B5-E71F-4F3F-9310-B8F156F736D8}.Release|x86.ActiveCfg = Release|Win32
-		{E3B160B5-E71F-4F3F-9310-B8F156F736D8}.Release|x86.Build.0 = Release|Win32
-	EndGlobalSection
-	GlobalSection(SolutionProperties) = preSolution
-		HideSolutionNode = FALSE
-	EndGlobalSection
-EndGlobal

samples/SimpleTexturedDirectx11/SimpleTexturedDirectx11/ModelLoader.cpp

@@ -180,6 +180,8 @@ string ModelLoader::determineTextureType(const aiScene * scene, aiMaterial * mat
 	{
 		return "textures are on disk";
 	}
+
+    return ".";
 }
 
 int ModelLoader::getTextureIndex(aiString * str)

samples/SimpleTexturedDirectx11/SimpleTexturedDirectx11/SimpleTexturedDirectx11.vcxproj

@@ -1,146 +0,0 @@
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-<Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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-    <ProjectGuid>{E3B160B5-E71F-4F3F-9310-B8F156F736D8}</ProjectGuid>
-    <RootNamespace>SimpleTexturedDirectx11</RootNamespace>
-    <WindowsTargetPlatformVersion>10.0.14393.0</WindowsTargetPlatformVersion>
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-  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
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-    <Link>
-      <EnableCOMDATFolding>true</EnableCOMDATFolding>
-      <OptimizeReferences>true</OptimizeReferences>
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-    <ClCompile Include="ModelLoader.cpp" />
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samples/SimpleTexturedDirectx11/SimpleTexturedDirectx11/SimpleTexturedDirectx11.vcxproj.filters

@@ -1,50 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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-    <Filter Include="Source Files">
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-    <Filter Include="Header Files">
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-      <Extensions>h;hh;hpp;hxx;hm;inl;inc;xsd</Extensions>
-    </Filter>
-    <Filter Include="Resource Files">
-      <UniqueIdentifier>{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}</UniqueIdentifier>
-      <Extensions>rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms</Extensions>
-    </Filter>
-    <Filter Include="Shaders">
-      <UniqueIdentifier>{b6a86d3e-70a5-4d1e-ba05-c20902300206}</UniqueIdentifier>
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-    <ClCompile Include="main.cpp">
-      <Filter>Source Files</Filter>
-    </ClCompile>
-    <ClCompile Include="ModelLoader.cpp">
-      <Filter>Source Files</Filter>
-    </ClCompile>
-    <ClCompile Include="TextureLoader.cpp">
-      <Filter>Source Files</Filter>
-    </ClCompile>
-  </ItemGroup>
-  <ItemGroup>
-    <FxCompile Include="VertexShader.hlsl">
-      <Filter>Shaders</Filter>
-    </FxCompile>
-    <FxCompile Include="PixelShader.hlsl">
-      <Filter>Shaders</Filter>
-    </FxCompile>
-  </ItemGroup>
-  <ItemGroup>
-    <ClInclude Include="ModelLoader.h">
-      <Filter>Header Files</Filter>
-    </ClInclude>
-    <ClInclude Include="Mesh.h">
-      <Filter>Header Files</Filter>
-    </ClInclude>
-    <ClInclude Include="TextureLoader.h">
-      <Filter>Header Files</Filter>
-    </ClInclude>
-  </ItemGroup>
-</Project>

test/models/glTF2/textureTransform/TextureTransformTest.gltf

@@ -0,0 +1,540 @@
+{
+  "accessors": [
+    {
+      "bufferView": 0,
+      "componentType": 5126,
+      "count": 4,
+      "type": "VEC3",
+      "max": [
+        0.5,
+        0.5,
+        0.0
+      ],
+      "min": [
+        -0.5,
+        -0.5,
+        0.0
+      ],
+      "name": "Positions"
+    },
+    {
+      "bufferView": 1,
+      "componentType": 5126,
+      "count": 4,
+      "type": "VEC2",
+      "name": "UV0"
+    },
+    {
+      "bufferView": 2,
+      "componentType": 5126,
+      "count": 4,
+      "type": "VEC2",
+      "name": "UV1"
+    },
+    {
+      "bufferView": 3,
+      "componentType": 5125,
+      "count": 6,
+      "type": "SCALAR",
+      "name": "Indices"
+    }
+  ],
+  "asset": {
+    "version": "2.0"
+  },
+  "buffers": [
+    {
+      "uri": "TextureTransformTest.bin",
+      "byteLength": 136
+    }
+  ],
+  "bufferViews": [
+    {
+      "buffer": 0,
+      "byteLength": 48,
+      "name": "Positions"
+    },
+    {
+      "buffer": 0,
+      "byteOffset": 48,
+      "byteLength": 32,
+      "name": "UV0"
+    },
+    {
+      "buffer": 0,
+      "byteOffset": 80,
+      "byteLength": 32,
+      "name": "UV1"
+    },
+    {
+      "buffer": 0,
+      "byteOffset": 112,
+      "byteLength": 24,
+      "name": "Indices"
+    }
+  ],
+  "extensionsUsed": [
+    "KHR_texture_transform"
+  ],
+  "images": [
+    {
+      "uri": "UV.png"
+    },
+    {
+      "uri": "Arrow.png"
+    },
+    {
+      "uri": "Correct.png"
+    },
+    {
+      "uri": "NotSupported.png"
+    },
+    {
+      "uri": "Error.png"
+    }
+  ],
+  "materials": [
+    {
+      "name": "Offset U",
+      "pbrMetallicRoughness": {
+        "baseColorTexture": {
+          "index": 0,
+          "extensions": {
+            "KHR_texture_transform": {
+              "offset": [
+                0.5,
+                0.0
+              ]
+            }
+          }
+        },
+        "metallicFactor": 0
+      }
+    },
+    {
+      "name": "Offset V",
+      "pbrMetallicRoughness": {
+        "baseColorTexture": {
+          "index": 0,
+          "extensions": {
+            "KHR_texture_transform": {
+              "offset": [
+                0.0,
+                0.5
+              ]
+            }
+          }
+        },
+        "metallicFactor": 0
+      }
+    },
+    {
+      "name": "Offset UV",
+      "pbrMetallicRoughness": {
+        "baseColorTexture": {
+          "index": 0,
+          "extensions": {
+            "KHR_texture_transform": {
+              "offset": [
+                0.5,
+                0.5
+              ]
+            }
+          }
+        },
+        "metallicFactor": 0
+      }
+    },
+    {
+      "name": "Rotation",
+      "pbrMetallicRoughness": {
+        "baseColorTexture": {
+          "index": 1,
+          "extensions": {
+            "KHR_texture_transform": {
+              "rotation": 0.39269908169872415480783042290994
+            }
+          }
+        },
+        "metallicFactor": 0
+      }
+    },
+    {
+      "name": "Scale",
+      "pbrMetallicRoughness": {
+        "baseColorTexture": {
+          "index": 1,
+          "extensions": {
+            "KHR_texture_transform": {
+              "scale": [
+                1.5,
+                1.5
+              ]
+            }
+          }
+        },
+        "metallicFactor": 0
+      }
+    },
+    {
+      "name": "All",
+      "pbrMetallicRoughness": {
+        "baseColorTexture": {
+          "index": 1,
+          "extensions": {
+            "KHR_texture_transform": {
+              "offset": [
+                -0.2,
+                -0.1
+              ],
+              "rotation": 0.3,
+              "scale": [
+                1.5,
+                1.5
+              ]
+            }
+          }
+        },
+        "metallicFactor": 0
+      }
+    },
+    {
+      "name": "Correct",
+      "pbrMetallicRoughness": {
+        "baseColorTexture": {
+          "index": 2
+        },
+        "metallicFactor": 0
+      }
+    },
+    {
+      "name": "NotSupported",
+      "pbrMetallicRoughness": {
+        "baseColorTexture": {
+          "index": 3
+        },
+        "metallicFactor": 0
+      }
+    },
+    {
+      "name": "Error",
+      "pbrMetallicRoughness": {
+        "baseColorTexture": {
+          "index": 4
+        },
+        "metallicFactor": 0
+      }
+    }
+  ],
+  "meshes": [
+    {
+      "name": "Offset U",
+      "primitives": [
+        {
+          "attributes": {
+            "POSITION": 0,
+            "TEXCOORD_0": 2
+          },
+          "indices": 3,
+          "material": 0
+        }
+      ]
+    },
+    {
+      "name": "Offset V",
+      "primitives": [
+        {
+          "attributes": {
+            "POSITION": 0,
+            "TEXCOORD_0": 2
+          },
+          "indices": 3,
+          "material": 1
+        }
+      ]
+    },
+    {
+      "name": "Offset UV",
+      "primitives": [
+        {
+          "attributes": {
+            "POSITION": 0,
+            "TEXCOORD_0": 2
+          },
+          "indices": 3,
+          "material": 2
+        }
+      ]
+    },
+    {
+      "name": "Rotation",
+      "primitives": [
+        {
+          "attributes": {
+            "POSITION": 0,
+            "TEXCOORD_0": 1
+          },
+          "indices": 3,
+          "material": 3
+        }
+      ]
+    },
+    {
+      "name": "Scale",
+      "primitives": [
+        {
+          "attributes": {
+            "POSITION": 0,
+            "TEXCOORD_0": 1
+          },
+          "indices": 3,
+          "material": 4
+        }
+      ]
+    },
+    {
+      "name": "All",
+      "primitives": [
+        {
+          "attributes": {
+            "POSITION": 0,
+            "TEXCOORD_0": 1
+          },
+          "indices": 3,
+          "material": 5
+        }
+      ]
+    },
+    {
+      "name": "Correct Marker",
+      "primitives": [
+        {
+          "attributes": {
+            "POSITION": 0,
+            "TEXCOORD_0": 1
+          },
+          "indices": 3,
+          "material": 6
+        }
+      ]
+    },
+    {
+      "name": "Not Supported Marker",
+      "primitives": [
+        {
+          "attributes": {
+            "POSITION": 0,
+            "TEXCOORD_0": 1
+          },
+          "indices": 3,
+          "material": 7
+        }
+      ]
+    },
+    {
+      "name": "Error Marker",
+      "primitives": [
+        {
+          "attributes": {
+            "POSITION": 0,
+            "TEXCOORD_0": 1
+          },
+          "indices": 3,
+          "material": 8
+        }
+      ]
+    }
+  ],
+  "nodes": [
+    {
+      "name": "Offset U",
+      "mesh": 0,
+      "translation": [
+        -1.1,
+        0.55,
+        0
+      ]
+    },
+    {
+      "name": "Offset V",
+      "mesh": 1,
+      "translation": [
+        0,
+        0.55,
+        0
+      ]
+    },
+    {
+      "name": "Offset UV",
+      "mesh": 2,
+      "translation": [
+        1.1,
+        0.55,
+        0
+      ]
+    },
+    {
+      "name": "Rotation",
+      "mesh": 3,
+      "translation": [
+        -1.1,
+        -0.55,
+        0
+      ],
+      "children": [
+        4,
+        5,
+        6
+      ]
+    },
+    {
+      "name": "Rotation - Correct",
+      "mesh": 6,
+      "translation": [
+        -0.07904822439840125109869401756656,
+        -0.51626748576241543174100150833647,
+        0.01
+      ],
+      "scale": [
+        0.15,
+        0.15,
+        0.15
+      ]
+    },
+    {
+      "name": "Rotation - Not Supported",
+      "mesh": 7,
+      "translation": [
+        0.27781745930520227684092879831533,
+        -0.27781745930520227684092879831533,
+        0.01
+      ],
+      "scale": [
+        0.15,
+        0.15,
+        0.15
+      ]
+    },
+    {
+      "name": "Rotation - Error",
+      "mesh": 8,
+      "translation": [
+        0.51626748576241543174100150833647,
+        0.07904822439840125109869401756656,
+        0.01
+      ],
+      "scale": [
+        0.15,
+        0.15,
+        0.15
+      ]
+    },
+    {
+      "name": "Scale",
+      "mesh": 4,
+      "translation": [
+        0,
+        -0.55,
+        0
+      ],
+      "children": [
+        8,
+        9
+      ]
+    },
+    {
+      "name": "Scale - Correct",
+      "mesh": 6,
+      "translation": [
+        0.01854497287013485122728586554355,
+        -0.01854497287013485122728586554355,
+        0.01
+      ],
+      "scale": [
+        0.1,
+        0.1,
+        0.1
+      ]
+    },
+    {
+      "name": "Scale - Not Supported",
+      "mesh": 7,
+      "translation": [
+        0.27781745930520227684092879831533,
+        -0.27781745930520227684092879831533,
+        0.01
+      ],
+      "scale": [
+        0.15,
+        0.15,
+        0.15
+      ]
+    },
+    {
+      "name": "All",
+      "mesh": 5,
+      "translation": [
+        1.1,
+        -0.55,
+        0
+      ],
+      "children": [
+        11
+      ]
+    },
+    {
+      "name": "All - Correct",
+      "mesh": 6,
+      "translation": [
+        -0.07,
+        -0.25,
+        0.01
+      ],
+      "scale": [
+        0.1,
+        0.1,
+        0.1
+      ]
+    }
+  ],
+  "scene": 0,
+  "scenes": [
+    {
+      "nodes": [
+        0,
+        1,
+        2,
+        3,
+        7,
+        10
+      ]
+    }
+  ],
+  "textures": [
+    {
+      "source": 0,
+      "sampler": 0
+    },
+    {
+      "source": 1,
+      "sampler": 0
+    },
+    {
+      "source": 2
+    },
+    {
+      "source": 3
+    },
+    {
+      "source": 4
+    }
+  ],
+  "samplers": [
+    {
+      "wrapS": 33071,
+      "wrapT": 33071,
+      "magFilter": 9729,
+      "minFilter": 9729
+    }
+  ]
+}

test/unit/utglTF2ImportExport.cpp

@@ -405,6 +405,13 @@ TEST_F(utglTF2ImportExport, incorrect_vertex_arrays) {
     EXPECT_EQ(scene->mMeshes[7]->mNumFaces, 17u);
 }
 
+TEST_F( utglTF2ImportExport, texture_transform_test ) {
+	Assimp::Importer importer;
+	const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/glTF2/textureTransform/TextureTransformTest.gltf",
+			aiProcess_ValidateDataStructure);
+	EXPECT_NE(nullptr, scene);
+}
+
 #ifndef ASSIMP_BUILD_NO_EXPORT
 TEST_F( utglTF2ImportExport, exportglTF2FromFileTest ) {
     EXPECT_TRUE( exporterTest() );