//--------------------------------------------------------------
void ofVbo::setMesh(const ofMesh & mesh, int usage, bool useColors, bool useTextures, bool useNormals){
if(mesh.getVertices().empty()){
ofLogWarning("ofVbo") << "setMesh(): ignoring mesh with no vertices";
return;
}
setVertexData(mesh.getVerticesPointer(),mesh.getNumVertices(),usage);
if(mesh.hasColors() && useColors){
setColorData(mesh.getColorsPointer(),mesh.getNumColors(),usage);
enableColors();
}else{
disableColors();
}
if(mesh.hasNormals() && useNormals){
setNormalData(mesh.getNormalsPointer(),mesh.getNumNormals(),usage);
enableNormals();
}else{
disableNormals();
}
if(mesh.hasTexCoords() && useTextures){
setTexCoordData(mesh.getTexCoordsPointer(),mesh.getNumTexCoords(),usage);
enableTexCoords();
}else{
disableTexCoords();
}
if(mesh.hasIndices()){
setIndexData(mesh.getIndexPointer(), mesh.getNumIndices(), usage);
enableIndices();
}else{
disableIndices();
}
}
//--------------------------------------------------------------
void ofVboByteColor::setMesh(const ofMesh & mesh, int usage){
setVertexData(mesh.getVerticesPointer(),mesh.getNumVertices(),usage);
setColorData(mesh.getColorsPointer(),mesh.getNumColors(),usage);
setNormalData(mesh.getNormalsPointer(),mesh.getNumNormals(),usage);
setTexCoordData(mesh.getTexCoordsPointer(),mesh.getNumTexCoords(),usage);
setIndexData(mesh.getIndexPointer(), mesh.getNumIndices(), usage);
}
std::shared_ptr<gameplay::Model> OBJWriter::readModel(const boost::filesystem::path& path, const std::shared_ptr<gameplay::ShaderProgram>& shaderProgram, const glm::vec3& ambientColor) const
{
Assimp::Importer importer;
const aiScene* scene = importer.ReadFile((m_basePath / path).string(), aiProcess_JoinIdenticalVertices | aiProcess_Triangulate | aiProcess_ValidateDataStructure | aiProcess_FlipUVs);
BOOST_ASSERT(scene != nullptr);
auto renderModel = std::make_shared<gameplay::Model>();
for( unsigned int mi = 0; mi < scene->mNumMeshes; ++mi )
{
BOOST_LOG_TRIVIAL(info) << "Converting mesh " << mi + 1 << " of " << scene->mNumMeshes << " from " << m_basePath / path;
const aiMesh* mesh = scene->mMeshes[mi];
if( mesh->mPrimitiveTypes != aiPrimitiveType_TRIANGLE )
BOOST_THROW_EXCEPTION(std::runtime_error("Mesh does not consist of triangles only"));
if( !mesh->HasTextureCoords(0) )
BOOST_THROW_EXCEPTION(std::runtime_error("Mesh does not have UV coordinates"));
if( mesh->mNumUVComponents[0] != 2 )
BOOST_THROW_EXCEPTION(std::runtime_error("Mesh does not have a 2D UV channel"));
if( !mesh->HasFaces() )
BOOST_THROW_EXCEPTION(std::runtime_error("Mesh does not have faces"));
if( !mesh->HasPositions() )
BOOST_THROW_EXCEPTION(std::runtime_error("Mesh does not have positions"));
std::shared_ptr<gameplay::Mesh> renderMesh;
if( mesh->HasNormals() )
{
std::vector<VDataNormal> vbuf(mesh->mNumVertices);
for( unsigned int i = 0; i < mesh->mNumVertices; ++i )
{
vbuf[i].position = glm::vec3{mesh->mVertices[i].x, mesh->mVertices[i].y, mesh->mVertices[i].z} * static_cast<float>(SectorSize);
vbuf[i].normal = glm::vec3{mesh->mNormals[i].x, mesh->mNormals[i].y, mesh->mNormals[i].z};
vbuf[i].uv = glm::vec2{mesh->mTextureCoords[0][i].x, mesh->mTextureCoords[0][i].y};
if( mesh->HasVertexColors(0) )
vbuf[i].color = glm::vec4(mesh->mColors[0][i].r, mesh->mColors[0][i].g, mesh->mColors[0][i].b, mesh->mColors[0][i].a);
else
vbuf[i].color = glm::vec4(ambientColor, 1);
}
renderMesh = std::make_shared<gameplay::Mesh>(VDataNormal::getFormat(), mesh->mNumVertices, false);
renderMesh->rebuild(reinterpret_cast<const float*>(vbuf.data()), mesh->mNumVertices);
}
else
{
std::vector<VData> vbuf(mesh->mNumVertices);
for( unsigned int i = 0; i < mesh->mNumVertices; ++i )
{
vbuf[i].position = glm::vec3{mesh->mVertices[i].x, mesh->mVertices[i].y, mesh->mVertices[i].z} * static_cast<float>(SectorSize);
vbuf[i].uv = glm::vec2{mesh->mTextureCoords[0][i].x, mesh->mTextureCoords[0][i].y};
if( mesh->HasVertexColors(0) )
vbuf[i].color = glm::vec4(mesh->mColors[0][i].r, mesh->mColors[0][i].g, mesh->mColors[0][i].b, mesh->mColors[0][i].a);
else
vbuf[i].color = glm::vec4(ambientColor, 1);
}
renderMesh = std::make_shared<gameplay::Mesh>(VData::getFormat(), mesh->mNumVertices, false);
renderMesh->rebuild(reinterpret_cast<const float*>(vbuf.data()), mesh->mNumVertices);
}
std::vector<uint32_t> faces;
for( const aiFace& face : gsl::span<aiFace>(mesh->mFaces, mesh->mNumFaces) )
{
BOOST_ASSERT(face.mNumIndices == 3);
faces.push_back(face.mIndices[0]);
faces.push_back(face.mIndices[1]);
faces.push_back(face.mIndices[2]);
}
auto part = renderMesh->addPart(gameplay::Mesh::TRIANGLES, gameplay::Mesh::INDEX32, mesh->mNumFaces * 3, false);
part->setIndexData(faces.data(), 0, faces.size());
const aiMaterial* material = scene->mMaterials[mesh->mMaterialIndex];
aiString textureName;
if( material->GetTexture(aiTextureType_DIFFUSE, 0, &textureName) != aiReturn_SUCCESS )
BOOST_THROW_EXCEPTION(std::runtime_error("Failed to get diffuse texture path from mesh"));
part->setMaterial(readMaterial(textureName.C_Str(), shaderProgram));
renderModel->addMesh(renderMesh);
}
return renderModel;
}