Merge branch 'assimp:master' into master

Readme.md

@@ -15,10 +15,10 @@ Open Asset Import Library is a library to load various 3d file formats into a sh
 APIs are provided for C and C++. There are various bindings to other languages (C#, Java, Python, Delphi, D). Assimp also runs on Android and iOS.
 Additionally, assimp features various __mesh post-processing tools__: normals and tangent space generation, triangulation, vertex cache locality optimization, removal of degenerate primitives and duplicate vertices, sorting by primitive type, merging of redundant materials and many more.
 
-### Latest Doc's ###
+### Documentation ###
 Please check the latest documents at [Asset-Importer-Lib-Doc](https://assimp-docs.readthedocs.io/en/latest/). 
 
-### Prebuild binaries ###
+### Pre-built binaries ###
 Please check our [Itchi Projectspace](https://kimkulling.itch.io/the-asset-importer-lib)
 
 If you want to check our Model-Database, use the following repo: https://github.com/assimp/assimp-mdb

code/AssetLib/3DS/3DSConverter.cpp

@@ -593,7 +593,7 @@ void Discreet3DSImporter::AddNodeToGraph(aiScene *pcSOut, aiNode *pcOut,
 
         // Cameras or lights define their transformation in their parent node and in the
         // corresponding light or camera chunks. However, we read and process the latter
-        // to to be able to return valid cameras/lights even if no scenegraph is given.
+        // to be able to return valid cameras/lights even if no scenegraph is given.
         for (unsigned int n = 0; n < pcSOut->mNumCameras; ++n) {
             if (pcSOut->mCameras[n]->mName == pcOut->mName) {
                 pcSOut->mCameras[n]->mLookAt = aiVector3D(0.f, 0.f, 1.f);

code/AssetLib/3DS/3DSLoader.cpp

@@ -365,7 +365,7 @@ void Discreet3DSImporter::ParseChunk(const char *name, unsigned int num) {
     // IMPLEMENTATION NOTE;
     // Cameras or lights define their transformation in their parent node and in the
     // corresponding light or camera chunks. However, we read and process the latter
-    // to to be able to return valid cameras/lights even if no scenegraph is given.
+    // to be able to return valid cameras/lights even if no scenegraph is given.
 
     // get chunk type
     switch (chunk.Flag) {

code/AssetLib/ASE/ASELoader.cpp

@@ -904,7 +904,7 @@ void ASEImporter::ConvertMeshes(ASE::Mesh &mesh, std::vector<aiMesh *> &avOutMes
         ASSIMP_LOG_WARN("Material index is out of range");
     }
 
-    // If the material the mesh is assigned to is consisting of submeshes, split it
+    // If the material the mesh is assigned to consists of submeshes, split it
     if (!mParser->m_vMaterials[mesh.iMaterialIndex].avSubMaterials.empty()) {
         std::vector<ASE::Material> vSubMaterials = mParser->m_vMaterials[mesh.iMaterialIndex].avSubMaterials;
 

code/AssetLib/Blender/BlenderScene.cpp

@@ -297,7 +297,7 @@ void Structure ::Convert<Base>(
         const FileDatabase &db) const {
     // note: as per https://github.com/assimp/assimp/issues/128,
     // reading the Object linked list recursively is prone to stack overflow.
-    // This structure converter is therefore an hand-written exception that
+    // This structure converter is therefore a hand-written exception that
     // does it iteratively.
 
     const int initial_pos = db.reader->GetCurrentPos();

code/AssetLib/Collada/ColladaParser.cpp

@@ -1867,7 +1867,7 @@ size_t ColladaParser::ReadPrimitives(XmlNode &node, Mesh &pMesh, std::vector<Inp
 
 ///@note This function won't work correctly if both PerIndex and PerVertex channels have same channels.
 ///For example if TEXCOORD present in both <vertices> and <polylist> tags this function will create wrong uv coordinates.
-///It's not clear from COLLADA documentation is this allowed or not. For now only exporter fixed to avoid such behavior
+///It's not clear from COLLADA documentation whether this is allowed or not. For now only exporter fixed to avoid such behavior
 void ColladaParser::CopyVertex(size_t currentVertex, size_t numOffsets, size_t numPoints, size_t perVertexOffset, Mesh &pMesh,
         std::vector<InputChannel> &pPerIndexChannels, size_t currentPrimitive, const std::vector<size_t> &indices) {
     // calculate the base offset of the vertex whose attributes we ant to copy

code/AssetLib/FBX/FBXConverter.cpp

@@ -1204,7 +1204,7 @@ unsigned int FBXConverter::ConvertMeshSingleMaterial(const MeshGeometry &mesh, c
                 const auto &curNormals = shapeGeometry->GetNormals();
                 const auto &curIndices = shapeGeometry->GetIndices();
                 //losing channel name if using shapeGeometry->Name()
-                // if blendShapeChannel Name is empty or don't have a ".", add geoMetryName;
+                // if blendShapeChannel Name is empty or doesn't have a ".", add geoMetryName;
                 auto aniName = FixAnimMeshName(blendShapeChannel->Name());
                 auto geoMetryName = FixAnimMeshName(shapeGeometry->Name());
                 if (aniName.empty()) {

code/AssetLib/FBX/FBXDeformer.cpp

@@ -84,7 +84,7 @@ Cluster::Cluster(uint64_t id, const Element& element, const Document& doc, const
     transform = ReadMatrix(Transform);
     transformLink = ReadMatrix(TransformLink);
 
-    // it is actually possible that there be Deformer's with no weights
+    // it is actually possible that there are Deformer's with no weights
     if (!!Indexes != !!Weights) {
         DOMError("either Indexes or Weights are missing from Cluster",&element);
     }

code/AssetLib/FBX/FBXMaterial.cpp

@@ -367,7 +367,9 @@ Video::Video(uint64_t id, const Element &element, const Document &doc, const std
 }
 
 Video::~Video() {
-    delete[] content;
+    if (contentLength > 0) {
+        delete[] content;
+    }
 }
 
 } //!FBX

code/AssetLib/FBX/FBXMeshGeometry.cpp

@@ -467,9 +467,9 @@ void ResolveVertexDataArray(std::vector<T>& data_out, const Scope& source,
         std::vector<int> uvIndices;
         ParseVectorDataArray(uvIndices,GetRequiredElement(source,indexDataElementName));
 
-        if (uvIndices.size() != vertex_count) {
+        if (uvIndices.size() != mapping_offsets.size()) {
             FBXImporter::LogError("length of input data unexpected for ByVertice mapping: ",
-                                  uvIndices.size(), ", expected ", vertex_count);
+                                  uvIndices.size(), ", expected ", mapping_offsets.size());
             return;
         }
 

code/AssetLib/glTF2/glTF2Asset.h

@@ -720,7 +720,7 @@ const vec4 defaultBaseColor = { 1, 1, 1, 1 };
 const vec3 defaultEmissiveFactor = { 0, 0, 0 };
 const vec4 defaultDiffuseFactor = { 1, 1, 1, 1 };
 const vec3 defaultSpecularFactor = { 1, 1, 1 };
-const vec3 defaultSpecularColorFactor = { 0, 0, 0 };
+const vec3 defaultSpecularColorFactor = { 1, 1, 1 };
 const vec3 defaultSheenFactor = { 0, 0, 0 };
 const vec3 defaultAttenuationColor = { 1, 1, 1 };
 

code/AssetLib/glTF2/glTF2Asset.inl

@@ -1392,7 +1392,7 @@ inline void PbrSpecularGlossiness::SetDefaults() {
 inline void MaterialSpecular::SetDefaults() {
     //KHR_materials_specular properties
     SetVector(specularColorFactor, defaultSpecularColorFactor);
-    specularFactor = 0.f;
+    specularFactor = 1.f;
 }
 
 inline void MaterialSheen::SetDefaults() {
@@ -1552,6 +1552,22 @@ inline void Mesh::Read(Value &pJSON_Object, Asset &pAsset_Root) {
                     }
                 }
             }
+
+            if(this->targetNames.empty())
+            {
+                Value *curExtras = FindObject(primitive, "extras");
+                if (nullptr != curExtras) {
+                    if (Value *curTargetNames = FindArray(*curExtras, "targetNames")) {
+                        this->targetNames.resize(curTargetNames->Size());
+                        for (unsigned int j = 0; j < curTargetNames->Size(); ++j) {
+                            Value &targetNameValue = (*curTargetNames)[j];
+                            if (targetNameValue.IsString()) {
+                                this->targetNames[j] = targetNameValue.GetString();
+                            }
+                        }
+                    }
+                }
+            }
         }
     }
 

code/AssetLib/glTF2/glTF2AssetWriter.inl

@@ -426,13 +426,14 @@ namespace glTF2 {
 
             if (specular.specularFactor != 0.0f) {
                 WriteFloat(materialSpecular, specular.specularFactor, "specularFactor", w.mAl);
-                WriteTex(materialSpecular, specular.specularTexture, "specularTexture", w.mAl);
             }
             if (specular.specularColorFactor[0] != defaultSpecularColorFactor[0] && specular.specularColorFactor[1] != defaultSpecularColorFactor[1] && specular.specularColorFactor[2] != defaultSpecularColorFactor[2]) {
                 WriteVec(materialSpecular, specular.specularColorFactor, "specularColorFactor", w.mAl);
-                WriteTex(materialSpecular, specular.specularColorTexture, "specularColorTexture", w.mAl);
             }
 
+            WriteTex(materialSpecular, specular.specularTexture, "specularTexture", w.mAl);
+            WriteTex(materialSpecular, specular.specularColorTexture, "specularColorTexture", w.mAl);
+
             if (!materialSpecular.ObjectEmpty()) {
                 exts.AddMember("KHR_materials_specular", materialSpecular, w.mAl);
             }

code/AssetLib/glTF2/glTF2Exporter.cpp

@@ -730,8 +730,8 @@ bool glTF2Exporter::GetMatSpecular(const aiMaterial &mat, glTF2::MaterialSpecula
     } else if (colorFactorIsZero) {
         specular.specularColorFactor[0] = specular.specularColorFactor[1] = specular.specularColorFactor[2] = 1.0f;
     }
-    GetMatTex(mat, specular.specularColorTexture, aiTextureType_SPECULAR);
-    GetMatTex(mat, specular.specularTexture, aiTextureType_SPECULAR);
+    GetMatTex(mat, specular.specularTexture, aiTextureType_SPECULAR, 0);
+    GetMatTex(mat, specular.specularColorTexture, aiTextureType_SPECULAR, 1);
     return true;
 }
 

code/AssetLib/glTF2/glTF2Importer.cpp

@@ -288,8 +288,8 @@ static aiMaterial *ImportMaterial(std::vector<int> &embeddedTexIdxs, Asset &r, M
             if (std::memcmp(specular.specularColorFactor, defaultSpecularColorFactor, sizeof(glTFCommon::vec3)) != 0 || specular.specularFactor != 0.0f) {
                 SetMaterialColorProperty(r, specular.specularColorFactor, aimat, AI_MATKEY_COLOR_SPECULAR);
                 aimat->AddProperty(&specular.specularFactor, 1, AI_MATKEY_SPECULAR_FACTOR);
-                SetMaterialTextureProperty(embeddedTexIdxs, r, specular.specularTexture, aimat, aiTextureType_SPECULAR);
-                SetMaterialTextureProperty(embeddedTexIdxs, r, specular.specularColorTexture, aimat, aiTextureType_SPECULAR);
+                SetMaterialTextureProperty(embeddedTexIdxs, r, specular.specularTexture, aimat, aiTextureType_SPECULAR, 0);
+                SetMaterialTextureProperty(embeddedTexIdxs, r, specular.specularColorTexture, aimat, aiTextureType_SPECULAR, 1);
             }
         }
         // pbrSpecularGlossiness

tools/assimp_view/assimp_view.cpp

@@ -291,7 +291,7 @@ int LoadAsset() {
 
 //-------------------------------------------------------------------------------
 // Delete the loaded asset
-// The function does nothing is no asset is loaded
+// The function does nothing if no asset is loaded
 //-------------------------------------------------------------------------------
 int DeleteAsset(void) {
     if (!g_pcAsset) {