fixed rotation problem

QtMeshViewer/Header/FileInterface.h

@@ -30,6 +30,7 @@ struct Model {
 	std::string name = "";
 	std::string parent = "";
 	QMatrix4x4 m4x4Translation;
+	QQuaternion quadRotation;
 	std::vector<Segment*> segmList;
 };
 

QtMeshViewer/Source/GeometryEngine.cpp

@@ -59,6 +59,7 @@ void GeometryEngine::loadFile(const char* filePath)
 				new_info.size = segmentIterator->indices.size();
 				new_info.textureIndex = segmentIterator->textureIndex;
 				new_info.modelMatrix = modelIterator->m4x4Translation;
+				new_info.modelMatrix.rotate(modelIterator->quadRotation);
 
 				// add offset to indices
 				for (auto& it : segmentIterator->indices)

QtMeshViewer/Source/MshFile.cpp

@@ -293,8 +293,9 @@ void MshFile::analyseModlChunks(Model * dataDestination, std::list<ChunkHeader*>
 
 			// modify the matrix
 			dataDestination->m4x4Translation.scale(tmp_scale[0], tmp_scale[1], tmp_scale[2]);
-			dataDestination->m4x4Translation.rotate(QQuaternion(tmp_rotation[3], tmp_rotation[0], tmp_rotation[1], tmp_rotation[2]));
 			dataDestination->m4x4Translation.translate(tmp_trans[0], tmp_trans[1], tmp_trans[2]);
+			dataDestination->quadRotation.setVector(QVector3D(tmp_rotation[0], tmp_rotation[1], tmp_rotation[2]));
+			dataDestination->quadRotation.setScalar(tmp_rotation[3]);
 
 			dataDestination->m4x4Translation = getParentMatrix(dataDestination->parent) * dataDestination->m4x4Translation;