//! reads a mesh sections and creates a mesh from it IAnimatedMesh* CIrrMeshFileLoader::readMesh(io::IXMLReader* reader) { SAnimatedMesh* animatedmesh = new SAnimatedMesh(); SMesh* mesh = new SMesh(); animatedmesh->addMesh(mesh); mesh->drop(); core::stringc bbSectionName = "boundingBox"; core::stringc bufferSectionName = "buffer"; core::stringc meshSectionName = "mesh"; if (!reader->isEmptyElement()) while(reader->read()) { if (reader->getNodeType() == io::EXN_ELEMENT) { const wchar_t* nodeName = reader->getNodeName(); if (bbSectionName == nodeName) { // inside a bounding box, ignore it for now because // we are calculating this anyway ourselves later. } else if (bufferSectionName == nodeName) { // we've got a mesh buffer IMeshBuffer* buffer = readMeshBuffer(reader); if (buffer) { mesh->addMeshBuffer(buffer); buffer->drop(); } } else skipSection(reader, true); // unknown section } // end if node type is element else if (reader->getNodeType() == io::EXN_ELEMENT_END) { if (meshSectionName == reader->getNodeName()) { // end of mesh section reached, cancel out break; } } } // end while reader->read(); mesh->recalculateBoundingBox(); animatedmesh->recalculateBoundingBox(); return animatedmesh; }
//! reads a mesh sections and creates a mesh buffer from it IMeshBuffer* CIrrMeshFileLoader::readMeshBuffer(io::IXMLReader* reader) { CDynamicMeshBuffer* buffer = 0; core::stringc verticesSectionName = "vertices"; core::stringc bbSectionName = "boundingBox"; core::stringc materialSectionName = "material"; core::stringc indicesSectionName = "indices"; core::stringc bufferSectionName = "buffer"; bool insideVertexSection = false; bool insideIndexSection = false; int vertexCount = 0; int indexCount = 0; video::SMaterial material; if (!reader->isEmptyElement()) while(reader->read()) { if (reader->getNodeType() == io::EXN_ELEMENT) { const wchar_t* nodeName = reader->getNodeName(); if (bbSectionName == nodeName) { // inside a bounding box, ignore it for now because // we are calculating this anyway ourselves later. } else if (materialSectionName == nodeName) { //we've got a material io::IAttributes* attributes = FileSystem->createEmptyAttributes(SceneManager->getVideoDriver()); attributes->read(reader, true, L"material"); SceneManager->getVideoDriver()->fillMaterialStructureFromAttributes(material, attributes); attributes->drop(); } else if (verticesSectionName == nodeName) { // vertices section const core::stringc vertexTypeName1 = "standard"; const core::stringc vertexTypeName2 = "2tcoords"; const core::stringc vertexTypeName3 = "tangents"; const wchar_t* vertexType = reader->getAttributeValue(L"type"); vertexCount = reader->getAttributeValueAsInt(L"vertexCount"); insideVertexSection = true; video::E_INDEX_TYPE itype = (vertexCount > 65536)?irr::video::EIT_32BIT:irr::video::EIT_16BIT; if (vertexTypeName1 == vertexType) { buffer = new CDynamicMeshBuffer(irr::video::EVT_STANDARD, itype); } else if (vertexTypeName2 == vertexType) { buffer = new CDynamicMeshBuffer(irr::video::EVT_2TCOORDS, itype); } else if (vertexTypeName3 == vertexType) { buffer = new CDynamicMeshBuffer(irr::video::EVT_TANGENTS, itype); } buffer->getVertexBuffer().reallocate(vertexCount); buffer->Material = material; } else if (indicesSectionName == nodeName) { // indices section indexCount = reader->getAttributeValueAsInt(L"indexCount"); insideIndexSection = true; } } // end if node type is element else if (reader->getNodeType() == io::EXN_TEXT) { // read vertex data if (insideVertexSection) { readMeshBuffer(reader, vertexCount, buffer); insideVertexSection = false; } // end reading vertex array else if (insideIndexSection) { readIndices(reader, indexCount, buffer->getIndexBuffer()); insideIndexSection = false; } } // end if node type is text else if (reader->getNodeType() == io::EXN_ELEMENT_END) { if (bufferSectionName == reader->getNodeName()) { // end of buffer section reached, cancel out break; } } } // end while reader->read(); if (buffer) buffer->recalculateBoundingBox(); return buffer; }
//! reads a mesh sections and creates a mesh buffer from it IMeshBuffer* CIrrMeshFileLoader::readMeshBuffer(io::IXMLReader* reader) { IMeshBuffer* buffer = 0; SMeshBuffer* sbuffer1 = 0; SMeshBufferLightMap* sbuffer2 = 0; SMeshBufferTangents* sbuffer3 = 0; core::stringc verticesSectionName = "vertices"; core::stringc bbSectionName = "boundingBox"; core::stringc materialSectionName = "material"; core::stringc indicesSectionName = "indices"; core::stringc bufferSectionName = "buffer"; bool insideVertexSection = false; bool insideIndexSection = false; int vertexCount = 0; int indexCount = 0; video::SMaterial material; if (!reader->isEmptyElement()) while(reader->read()) { if (reader->getNodeType() == io::EXN_ELEMENT) { const wchar_t* nodeName = reader->getNodeName(); if (bbSectionName == nodeName) { // inside a bounding box, ignore it for now because // we are calculating this anyway ourselves later. } else if (materialSectionName == nodeName) { //we've got a material io::IAttributes* attributes = FileSystem->createEmptyAttributes(SceneManager->getVideoDriver()); attributes->read(reader, true, L"material"); SceneManager->getVideoDriver()->fillMaterialStructureFromAttributes(material, attributes); attributes->drop(); } else if (verticesSectionName == nodeName) { // vertices section core::stringc vertexTypeName1 = "standard"; core::stringc vertexTypeName2 = "2tcoords"; core::stringc vertexTypeName3 = "tangents"; const wchar_t* vertexType = reader->getAttributeValue(L"type"); vertexCount = reader->getAttributeValueAsInt(L"vertexCount"); insideVertexSection = true; if (vertexTypeName1 == vertexType) { sbuffer1 = new SMeshBuffer(); sbuffer1->Vertices.reallocate(vertexCount); sbuffer1->Material = material; buffer = sbuffer1; } else if (vertexTypeName2 == vertexType) { sbuffer2 = new SMeshBufferLightMap(); sbuffer2->Vertices.reallocate(vertexCount); sbuffer2->Material = material; buffer = sbuffer2; } else if (vertexTypeName3 == vertexType) { sbuffer3 = new SMeshBufferTangents(); sbuffer3->Vertices.reallocate(vertexCount); sbuffer3->Material = material; buffer = sbuffer3; } } else if (indicesSectionName == nodeName) { // indices section indexCount = reader->getAttributeValueAsInt(L"indexCount"); insideIndexSection = true; } } // end if node type is element else if (reader->getNodeType() == io::EXN_TEXT) { // read vertex data if (insideVertexSection) { if (sbuffer1) readMeshBuffer(reader, vertexCount, sbuffer1); else if (sbuffer2) readMeshBuffer(reader, vertexCount, sbuffer2); else if (sbuffer3) readMeshBuffer(reader, vertexCount, sbuffer3); insideVertexSection = false; } // end reading vertex array else if (insideIndexSection) { if (sbuffer1) readIndices(reader, indexCount, sbuffer1->Indices); else if (sbuffer2) readIndices(reader, indexCount, sbuffer2->Indices); else if (sbuffer3) readIndices(reader, indexCount, sbuffer3->Indices); insideIndexSection = false; } } // end if node type is text else if (reader->getNodeType() == io::EXN_ELEMENT_END) { if (bufferSectionName == reader->getNodeName()) { // end of buffer section reached, cancel out break; } } } // end while reader->read(); if (buffer) buffer->recalculateBoundingBox(); return buffer; }