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authorsanine <sanine.not@pm.me>2022-04-16 11:55:09 -0500
committersanine <sanine.not@pm.me>2022-04-16 11:55:09 -0500
commitdb81b925d776103326128bf629cbdda576a223e7 (patch)
tree58bea8155c686733310009f6bed7363f91fbeb9d /libs/assimp/code/AssetLib/3MF/XmlSerializer.cpp
parent55860037b14fb3893ba21cf2654c83d349cc1082 (diff)
move 3rd-party librarys into libs/ and add built-in honeysuckle
Diffstat (limited to 'libs/assimp/code/AssetLib/3MF/XmlSerializer.cpp')
-rw-r--r--libs/assimp/code/AssetLib/3MF/XmlSerializer.cpp593
1 files changed, 593 insertions, 0 deletions
diff --git a/libs/assimp/code/AssetLib/3MF/XmlSerializer.cpp b/libs/assimp/code/AssetLib/3MF/XmlSerializer.cpp
new file mode 100644
index 0000000..9bd1c5b
--- /dev/null
+++ b/libs/assimp/code/AssetLib/3MF/XmlSerializer.cpp
@@ -0,0 +1,593 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2022, 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 "XmlSerializer.h"
+#include "D3MFOpcPackage.h"
+#include "3MFXmlTags.h"
+#include "3MFTypes.h"
+#include <assimp/scene.h>
+
+namespace Assimp {
+namespace D3MF {
+
+static const int IdNotSet = -1;
+
+namespace {
+
+static const size_t ColRGBA_Len = 9;
+static const size_t ColRGB_Len = 7;
+
+// format of the color string: #RRGGBBAA or #RRGGBB (3MF Core chapter 5.1.1)
+bool validateColorString(const char *color) {
+ const size_t len = strlen(color);
+ if (ColRGBA_Len != len && ColRGB_Len != len) {
+ return false;
+ }
+
+ return true;
+}
+
+aiFace ReadTriangle(XmlNode &node) {
+ aiFace face;
+
+ face.mNumIndices = 3;
+ face.mIndices = new unsigned int[face.mNumIndices];
+ face.mIndices[0] = static_cast<unsigned int>(std::atoi(node.attribute(XmlTag::v1).as_string()));
+ face.mIndices[1] = static_cast<unsigned int>(std::atoi(node.attribute(XmlTag::v2).as_string()));
+ face.mIndices[2] = static_cast<unsigned int>(std::atoi(node.attribute(XmlTag::v3).as_string()));
+
+ return face;
+}
+
+aiVector3D ReadVertex(XmlNode &node) {
+ aiVector3D vertex;
+ vertex.x = ai_strtof(node.attribute(XmlTag::x).as_string(), nullptr);
+ vertex.y = ai_strtof(node.attribute(XmlTag::y).as_string(), nullptr);
+ vertex.z = ai_strtof(node.attribute(XmlTag::z).as_string(), nullptr);
+
+ return vertex;
+}
+
+bool getNodeAttribute(const XmlNode &node, const std::string &attribute, std::string &value) {
+ pugi::xml_attribute objectAttribute = node.attribute(attribute.c_str());
+ if (!objectAttribute.empty()) {
+ value = objectAttribute.as_string();
+ return true;
+ }
+
+ return false;
+}
+
+bool getNodeAttribute(const XmlNode &node, const std::string &attribute, int &value) {
+ std::string strValue;
+ const bool ret = getNodeAttribute(node, attribute, strValue);
+ if (ret) {
+ value = std::atoi(strValue.c_str());
+ return true;
+ }
+
+ return false;
+}
+
+aiMatrix4x4 parseTransformMatrix(std::string matrixStr) {
+ // split the string
+ std::vector<float> numbers;
+ std::string currentNumber;
+ for (char c : matrixStr) {
+ if (c == ' ') {
+ if (!currentNumber.empty()) {
+ float f = std::stof(currentNumber);
+ numbers.push_back(f);
+ currentNumber.clear();
+ }
+ } else {
+ currentNumber.push_back(c);
+ }
+ }
+ if (!currentNumber.empty()) {
+ const float f = std::stof(currentNumber);
+ numbers.push_back(f);
+ }
+
+ aiMatrix4x4 transformMatrix;
+ transformMatrix.a1 = numbers[0];
+ transformMatrix.b1 = numbers[1];
+ transformMatrix.c1 = numbers[2];
+ transformMatrix.d1 = 0;
+
+ transformMatrix.a2 = numbers[3];
+ transformMatrix.b2 = numbers[4];
+ transformMatrix.c2 = numbers[5];
+ transformMatrix.d2 = 0;
+
+ transformMatrix.a3 = numbers[6];
+ transformMatrix.b3 = numbers[7];
+ transformMatrix.c3 = numbers[8];
+ transformMatrix.d3 = 0;
+
+ transformMatrix.a4 = numbers[9];
+ transformMatrix.b4 = numbers[10];
+ transformMatrix.c4 = numbers[11];
+ transformMatrix.d4 = 1;
+
+ return transformMatrix;
+}
+
+bool parseColor(const char *color, aiColor4D &diffuse) {
+ if (nullptr == color) {
+ return false;
+ }
+
+ if (!validateColorString(color)) {
+ return false;
+ }
+
+ if ('#' != color[0]) {
+ return false;
+ }
+
+ char r[3] = { color[1], color[2], '\0' };
+ diffuse.r = static_cast<ai_real>(strtol(r, nullptr, 16)) / ai_real(255.0);
+
+ char g[3] = { color[3], color[4], '\0' };
+ diffuse.g = static_cast<ai_real>(strtol(g, nullptr, 16)) / ai_real(255.0);
+
+ char b[3] = { color[5], color[6], '\0' };
+ diffuse.b = static_cast<ai_real>(strtol(b, nullptr, 16)) / ai_real(255.0);
+ const size_t len = strlen(color);
+ if (ColRGB_Len == len) {
+ return true;
+ }
+
+ char a[3] = { color[7], color[8], '\0' };
+ diffuse.a = static_cast<ai_real>(strtol(a, nullptr, 16)) / ai_real(255.0);
+
+ return true;
+}
+
+void assignDiffuseColor(XmlNode &node, aiMaterial *mat) {
+ const char *color = node.attribute(XmlTag::basematerials_displaycolor).as_string();
+ aiColor4D diffuse;
+ if (parseColor(color, diffuse)) {
+ mat->AddProperty<aiColor4D>(&diffuse, 1, AI_MATKEY_COLOR_DIFFUSE);
+ }
+}
+
+} // namespace
+
+XmlSerializer::XmlSerializer(XmlParser *xmlParser) :
+ mResourcesDictionnary(),
+ mMeshCount(0),
+ mXmlParser(xmlParser) {
+ ai_assert(nullptr != xmlParser);
+}
+
+XmlSerializer::~XmlSerializer() {
+ for (auto &it : mResourcesDictionnary) {
+ delete it.second;
+ }
+}
+
+void XmlSerializer::ImportXml(aiScene *scene) {
+ if (nullptr == scene) {
+ return;
+ }
+
+ scene->mRootNode = new aiNode(XmlTag::RootTag);
+ XmlNode node = mXmlParser->getRootNode().child(XmlTag::model);
+ if (node.empty()) {
+ return;
+ }
+
+ XmlNode resNode = node.child(XmlTag::resources);
+ for (auto &currentNode : resNode.children()) {
+ const std::string currentNodeName = currentNode.name();
+ if (currentNodeName == XmlTag::texture_2d) {
+ ReadEmbeddecTexture(currentNode);
+ } else if (currentNodeName == XmlTag::texture_group) {
+ ReadTextureGroup(currentNode);
+ } else if (currentNodeName == XmlTag::object) {
+ ReadObject(currentNode);
+ } else if (currentNodeName == XmlTag::basematerials) {
+ ReadBaseMaterials(currentNode);
+ } else if (currentNodeName == XmlTag::meta) {
+ ReadMetadata(currentNode);
+ }
+ }
+ StoreMaterialsInScene(scene);
+ XmlNode buildNode = node.child(XmlTag::build);
+ if (buildNode.empty()) {
+ return;
+ }
+
+ for (auto &currentNode : buildNode.children()) {
+ const std::string currentNodeName = currentNode.name();
+ if (currentNodeName == XmlTag::item) {
+ int objectId = IdNotSet;
+ std::string transformationMatrixStr;
+ aiMatrix4x4 transformationMatrix;
+ getNodeAttribute(currentNode, D3MF::XmlTag::objectid, objectId);
+ bool hasTransform = getNodeAttribute(currentNode, D3MF::XmlTag::transform, transformationMatrixStr);
+
+ auto it = mResourcesDictionnary.find(objectId);
+ if (it != mResourcesDictionnary.end() && it->second->getType() == ResourceType::RT_Object) {
+ Object *obj = static_cast<Object *>(it->second);
+ if (hasTransform) {
+ transformationMatrix = parseTransformMatrix(transformationMatrixStr);
+ }
+
+ addObjectToNode(scene->mRootNode, obj, transformationMatrix);
+ }
+ }
+ }
+
+ // import the metadata
+ if (!mMetaData.empty()) {
+ const size_t numMeta = mMetaData.size();
+ scene->mMetaData = aiMetadata::Alloc(static_cast<unsigned int>(numMeta));
+ for (size_t i = 0; i < numMeta; ++i) {
+ aiString val(mMetaData[i].value);
+ scene->mMetaData->Set(static_cast<unsigned int>(i), mMetaData[i].name, val);
+ }
+ }
+
+ // import the meshes, materials are already stored
+ scene->mNumMeshes = static_cast<unsigned int>(mMeshCount);
+ if (scene->mNumMeshes != 0) {
+ scene->mMeshes = new aiMesh *[scene->mNumMeshes]();
+ for (auto &it : mResourcesDictionnary) {
+ if (it.second->getType() == ResourceType::RT_Object) {
+ Object *obj = static_cast<Object *>(it.second);
+ ai_assert(nullptr != obj);
+ for (unsigned int i = 0; i < obj->mMeshes.size(); ++i) {
+ scene->mMeshes[obj->mMeshIndex[i]] = obj->mMeshes[i];
+ }
+ }
+ }
+ }
+}
+
+void XmlSerializer::addObjectToNode(aiNode *parent, Object *obj, aiMatrix4x4 nodeTransform) {
+ ai_assert(nullptr != obj);
+
+ aiNode *sceneNode = new aiNode(obj->mName);
+ sceneNode->mNumMeshes = static_cast<unsigned int>(obj->mMeshes.size());
+ sceneNode->mMeshes = new unsigned int[sceneNode->mNumMeshes];
+ std::copy(obj->mMeshIndex.begin(), obj->mMeshIndex.end(), sceneNode->mMeshes);
+
+ sceneNode->mTransformation = nodeTransform;
+ if (nullptr != parent) {
+ parent->addChildren(1, &sceneNode);
+ }
+
+ for (Assimp::D3MF::Component c : obj->mComponents) {
+ auto it = mResourcesDictionnary.find(c.mObjectId);
+ if (it != mResourcesDictionnary.end() && it->second->getType() == ResourceType::RT_Object) {
+ addObjectToNode(sceneNode, static_cast<Object *>(it->second), c.mTransformation);
+ }
+ }
+}
+
+void XmlSerializer::ReadObject(XmlNode &node) {
+ int id = IdNotSet, pid = IdNotSet, pindex = IdNotSet;
+ bool hasId = getNodeAttribute(node, XmlTag::id, id);
+ if (!hasId) {
+ return;
+ }
+
+ bool hasPid = getNodeAttribute(node, XmlTag::pid, pid);
+ bool hasPindex = getNodeAttribute(node, XmlTag::pindex, pindex);
+
+ Object *obj = new Object(id);
+ for (XmlNode &currentNode : node.children()) {
+ const std::string currentName = currentNode.name();
+ if (currentName == D3MF::XmlTag::mesh) {
+ auto mesh = ReadMesh(currentNode);
+ mesh->mName.Set(ai_to_string(id));
+
+ if (hasPid) {
+ auto it = mResourcesDictionnary.find(pid);
+ if (hasPindex && it != mResourcesDictionnary.end() && it->second->getType() == ResourceType::RT_BaseMaterials) {
+ BaseMaterials *materials = static_cast<BaseMaterials *>(it->second);
+ mesh->mMaterialIndex = materials->mMaterialIndex[pindex];
+ }
+ }
+
+ obj->mMeshes.push_back(mesh);
+ obj->mMeshIndex.push_back(mMeshCount);
+ mMeshCount++;
+ } else if (currentName == D3MF::XmlTag::components) {
+ for (XmlNode &currentSubNode : currentNode.children()) {
+ const std::string subNodeName = currentSubNode.name();
+ if (subNodeName == D3MF::XmlTag::component) {
+ int objectId = IdNotSet;
+ std::string componentTransformStr;
+ aiMatrix4x4 componentTransform;
+ if (getNodeAttribute(currentSubNode, D3MF::XmlTag::transform, componentTransformStr)) {
+ componentTransform = parseTransformMatrix(componentTransformStr);
+ }
+
+ if (getNodeAttribute(currentSubNode, D3MF::XmlTag::objectid, objectId)) {
+ obj->mComponents.push_back({ objectId, componentTransform });
+ }
+ }
+ }
+ }
+ }
+
+ mResourcesDictionnary.insert(std::make_pair(id, obj));
+}
+
+aiMesh *XmlSerializer::ReadMesh(XmlNode &node) {
+ if (node.empty()) {
+ return nullptr;
+ }
+
+ aiMesh *mesh = new aiMesh();
+ for (XmlNode &currentNode : node.children()) {
+ const std::string currentName = currentNode.name();
+ if (currentName == XmlTag::vertices) {
+ ImportVertices(currentNode, mesh);
+ } else if (currentName == XmlTag::triangles) {
+ ImportTriangles(currentNode, mesh);
+ }
+ }
+
+ return mesh;
+}
+
+void XmlSerializer::ReadMetadata(XmlNode &node) {
+ pugi::xml_attribute attribute = node.attribute(D3MF::XmlTag::meta_name);
+ const std::string name = attribute.as_string();
+ const std::string value = node.value();
+ if (name.empty()) {
+ return;
+ }
+
+ MetaEntry entry;
+ entry.name = name;
+ entry.value = value;
+ mMetaData.push_back(entry);
+}
+
+void XmlSerializer::ImportVertices(XmlNode &node, aiMesh *mesh) {
+ ai_assert(nullptr != mesh);
+
+ std::vector<aiVector3D> vertices;
+ for (XmlNode &currentNode : node.children()) {
+ const std::string currentName = currentNode.name();
+ if (currentName == XmlTag::vertex) {
+ vertices.push_back(ReadVertex(currentNode));
+ }
+ }
+
+ mesh->mNumVertices = static_cast<unsigned int>(vertices.size());
+ mesh->mVertices = new aiVector3D[mesh->mNumVertices];
+ std::copy(vertices.begin(), vertices.end(), mesh->mVertices);
+}
+
+void XmlSerializer::ImportTriangles(XmlNode &node, aiMesh *mesh) {
+ std::vector<aiFace> faces;
+ for (XmlNode &currentNode : node.children()) {
+ const std::string currentName = currentNode.name();
+ if (currentName == XmlTag::triangle) {
+ int pid = IdNotSet, p1 = IdNotSet;
+ bool hasPid = getNodeAttribute(currentNode, D3MF::XmlTag::pid, pid);
+ bool hasP1 = getNodeAttribute(currentNode, D3MF::XmlTag::p1, p1);
+
+ if (hasPid && hasP1) {
+ auto it = mResourcesDictionnary.find(pid);
+ if (it != mResourcesDictionnary.end()) {
+ if (it->second->getType() == ResourceType::RT_BaseMaterials) {
+ BaseMaterials *baseMaterials = static_cast<BaseMaterials *>(it->second);
+ mesh->mMaterialIndex = baseMaterials->mMaterialIndex[p1];
+ } else if (it->second->getType() == ResourceType::RT_Texture2DGroup) {
+ if (mesh->mTextureCoords[0] == nullptr) {
+ Texture2DGroup *group = static_cast<Texture2DGroup *>(it->second);
+ const std::string name = ai_to_string(group->mTexId);
+ for (size_t i = 0; i < mMaterials.size(); ++i) {
+ if (name == mMaterials[i]->GetName().C_Str()) {
+ mesh->mMaterialIndex = static_cast<unsigned int>(i);
+ }
+ }
+ mesh->mTextureCoords[0] = new aiVector3D[group->mTex2dCoords.size()];
+ for (unsigned int i = 0; i < group->mTex2dCoords.size(); ++i) {
+ mesh->mTextureCoords[0][i] = aiVector3D(group->mTex2dCoords[i].x, group->mTex2dCoords[i].y, 0);
+ }
+ }
+ }
+ }
+ }
+
+ aiFace face = ReadTriangle(currentNode);
+ faces.push_back(face);
+ }
+ }
+
+ mesh->mNumFaces = static_cast<unsigned int>(faces.size());
+ mesh->mFaces = new aiFace[mesh->mNumFaces];
+ mesh->mPrimitiveTypes = aiPrimitiveType_TRIANGLE;
+
+ std::copy(faces.begin(), faces.end(), mesh->mFaces);
+}
+
+void XmlSerializer::ReadBaseMaterials(XmlNode &node) {
+ int id = IdNotSet;
+ if (getNodeAttribute(node, D3MF::XmlTag::id, id)) {
+ BaseMaterials *baseMaterials = new BaseMaterials(id);
+
+ for (XmlNode &currentNode : node.children()) {
+ const std::string currentName = currentNode.name();
+ if (currentName == XmlTag::basematerials_base) {
+ baseMaterials->mMaterialIndex.push_back(static_cast<unsigned int>(mMaterials.size()));
+ mMaterials.push_back(readMaterialDef(currentNode, id));
+ }
+ }
+
+ mResourcesDictionnary.insert(std::make_pair(id, baseMaterials));
+ }
+}
+
+void XmlSerializer::ReadEmbeddecTexture(XmlNode &node) {
+ if (node.empty()) {
+ return;
+ }
+
+ std::string value;
+ EmbeddedTexture *tex2D = nullptr;
+ if (XmlParser::getStdStrAttribute(node, XmlTag::id, value)) {
+ tex2D = new EmbeddedTexture(atoi(value.c_str()));
+ }
+ if (nullptr == tex2D) {
+ return;
+ }
+
+ if (XmlParser::getStdStrAttribute(node, XmlTag::path, value)) {
+ tex2D->mPath = value;
+ }
+ if (XmlParser::getStdStrAttribute(node, XmlTag::texture_content_type, value)) {
+ tex2D->mContentType = value;
+ }
+ if (XmlParser::getStdStrAttribute(node, XmlTag::texture_tilestyleu, value)) {
+ tex2D->mTilestyleU = value;
+ }
+ if (XmlParser::getStdStrAttribute(node, XmlTag::texture_tilestylev, value)) {
+ tex2D->mTilestyleV = value;
+ }
+ mEmbeddedTextures.emplace_back(tex2D);
+ StoreEmbeddedTexture(tex2D);
+}
+
+void XmlSerializer::StoreEmbeddedTexture(EmbeddedTexture *tex) {
+ aiMaterial *mat = new aiMaterial;
+ aiString s;
+ s.Set(ai_to_string(tex->mId).c_str());
+ mat->AddProperty(&s, AI_MATKEY_NAME);
+ const std::string name = "*" + tex->mPath;
+ s.Set(name);
+ mat->AddProperty(&s, AI_MATKEY_TEXTURE_DIFFUSE(0));
+
+ aiColor3D col;
+ mat->AddProperty<aiColor3D>(&col, 1, AI_MATKEY_COLOR_DIFFUSE);
+ mat->AddProperty<aiColor3D>(&col, 1, AI_MATKEY_COLOR_AMBIENT);
+ mat->AddProperty<aiColor3D>(&col, 1, AI_MATKEY_COLOR_EMISSIVE);
+ mat->AddProperty<aiColor3D>(&col, 1, AI_MATKEY_COLOR_SPECULAR);
+ mMaterials.emplace_back(mat);
+}
+
+void XmlSerializer::ReadTextureCoords2D(XmlNode &node, Texture2DGroup *tex2DGroup) {
+ if (node.empty() || nullptr == tex2DGroup) {
+ return;
+ }
+
+ int id = IdNotSet;
+ if (XmlParser::getIntAttribute(node, "texid", id)) {
+ tex2DGroup->mTexId = id;
+ }
+
+ double value = 0.0;
+ for (XmlNode currentNode : node.children()) {
+ const std::string currentName = currentNode.name();
+ aiVector2D texCoord;
+ if (currentName == XmlTag::texture_2d_coord) {
+ XmlParser::getDoubleAttribute(currentNode, XmlTag::texture_cuurd_u, value);
+ texCoord.x = (ai_real)value;
+ XmlParser::getDoubleAttribute(currentNode, XmlTag::texture_cuurd_v, value);
+ texCoord.y = (ai_real)value;
+ tex2DGroup->mTex2dCoords.push_back(texCoord);
+ }
+ }
+}
+
+void XmlSerializer::ReadTextureGroup(XmlNode &node) {
+ if (node.empty()) {
+ return;
+ }
+
+ int id = IdNotSet;
+ if (!XmlParser::getIntAttribute(node, XmlTag::id, id)) {
+ return;
+ }
+
+ Texture2DGroup *group = new Texture2DGroup(id);
+ ReadTextureCoords2D(node, group);
+ mResourcesDictionnary.insert(std::make_pair(id, group));
+}
+
+aiMaterial *XmlSerializer::readMaterialDef(XmlNode &node, unsigned int basematerialsId) {
+ aiMaterial *material = new aiMaterial();
+ material->mNumProperties = 0;
+ std::string name;
+ bool hasName = getNodeAttribute(node, D3MF::XmlTag::basematerials_name, name);
+
+ std::string stdMaterialName;
+ const std::string strId(ai_to_string(basematerialsId));
+ stdMaterialName += "id";
+ stdMaterialName += strId;
+ stdMaterialName += "_";
+ if (hasName) {
+ stdMaterialName += std::string(name);
+ } else {
+ stdMaterialName += "basemat_";
+ stdMaterialName += ai_to_string(mMaterials.size());
+ }
+
+ aiString assimpMaterialName(stdMaterialName);
+ material->AddProperty(&assimpMaterialName, AI_MATKEY_NAME);
+
+ assignDiffuseColor(node, material);
+
+ return material;
+}
+
+void XmlSerializer::StoreMaterialsInScene(aiScene *scene) {
+ if (nullptr == scene || mMaterials.empty()) {
+ return;
+ }
+
+ scene->mNumMaterials = static_cast<unsigned int>(mMaterials.size());
+ scene->mMaterials = new aiMaterial *[scene->mNumMaterials];
+ for (size_t i = 0; i < mMaterials.size(); ++i) {
+ scene->mMaterials[i] = mMaterials[i];
+ }
+}
+
+} // namespace D3MF
+} // namespace Assimp