TEST_F(utSTLImporterExporter, test_export_pointclouds) {
struct XYZ {
float x, y, z;
};
std::vector<XYZ> points;
for (size_t i = 0; i < 10; ++i) {
XYZ current;
current.x = static_cast<float>(i);
current.y = static_cast<float>(i);
current.z = static_cast<float>(i);
points.push_back(current);
}
aiScene scene;
scene.mRootNode = new aiNode();
scene.mMeshes = new aiMesh*[1];
scene.mMeshes[0] = nullptr;
scene.mNumMeshes = 1;
scene.mMaterials = new aiMaterial*[1];
scene.mMaterials[0] = nullptr;
scene.mNumMaterials = 1;
scene.mMaterials[0] = new aiMaterial();
scene.mMeshes[0] = new aiMesh();
scene.mMeshes[0]->mMaterialIndex = 0;
scene.mRootNode->mMeshes = new unsigned int[1];
scene.mRootNode->mMeshes[0] = 0;
scene.mRootNode->mNumMeshes = 1;
auto pMesh = scene.mMeshes[0];
size_t numValidPoints = points.size();
pMesh->mVertices = new aiVector3D[numValidPoints];
pMesh->mNumVertices = static_cast<unsigned int>( numValidPoints );
int i = 0;
for (XYZ &p : points) {
pMesh->mVertices[i] = aiVector3D(p.x, p.y, p.z);
++i;
}
Assimp::Exporter mAiExporter;
ExportProperties *properties = new ExportProperties;
properties->SetPropertyBool(AI_CONFIG_EXPORT_POINT_CLOUDS, true);
mAiExporter.Export(&scene, "stl", "testExport.stl", 0, properties );
delete properties;
}
virtual bool exporterTest() {
Assimp::Importer importer;
Assimp::Exporter exporter;
const aiScene *scene = importer.ReadFile( ASSIMP_TEST_MODELS_DIR "/glTF2/BoxTextured-glTF/BoxTextured.gltf", aiProcess_ValidateDataStructure );
EXPECT_NE( nullptr, scene );
EXPECT_EQ( aiReturn_SUCCESS, exporter.Export( scene, "gltf2", ASSIMP_TEST_MODELS_DIR "/glTF2/BoxTextured-glTF/BoxTextured_out.gltf" ) );
return true;
}
TEST_F(utSTLImporterExporter, exporterTest) {
Assimp::Importer importer;
const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/STL/Spider_ascii.stl", aiProcess_ValidateDataStructure);
Assimp::Exporter mAiExporter;
mAiExporter.Export( scene, "stl", "spiderExport.stl" );
const aiScene *scene2 = importer.ReadFile("spiderExport.stl", aiProcess_ValidateDataStructure);
EXPECT_NE(nullptr, scene2);
}
std::string AssimpModelExport::getSupportedFormats()
{
std::string all = "All (";
std::string individual = "";
Assimp::Exporter exporter;
for (size_t i = 0; i < exporter.GetExportFormatCount(); ++i)
{
const aiExportFormatDesc* desc = exporter.GetExportFormatDescription(i);
all += "*." + std::string(desc->fileExtension) + " ";
individual += ";;" + std::string(desc->description) + " (*." +
std::string(desc->fileExtension) + ")";
}
all += ")";
return all + individual;
}
std::string AssimpModelExport::getExportFormatID(
const std::string &fileExtension)
{
std::string ret;
Assimp::Exporter exporter;
for (size_t i = 0; i < exporter.GetExportFormatCount(); ++i)
{
const aiExportFormatDesc* desc = exporter.GetExportFormatDescription(i);
if (fileExtension == desc->fileExtension)
{
ret = desc->id;
break;
}
}
return ret;
}
const bool aiExport::aiExecute( const aiScene * scene )
{
// Retrieves the file path.
const boost::filesystem::path path = getPath();
// If there is a file path, we can export.
if( !path.empty() )
{
Assimp::Exporter exporter;
Formats::const_iterator format = findFormat( path );
vgAssertN( format != m_formats.end(), "Export format must be specified." );
exporter.Export( scene, format->aiId, path.string().c_str(), 0u );
// We should do some error checking !
}
return false; // We never need to refresh the scene.
}
bool mesh::export_to_file(const std::string& format, const std::string& filepath, const std::string & filename) {
Assimp::Exporter exporter;
// TODO: fix the memory leak from not deleting temp
// Note that aiScene::~aiScene() is not exported by the library
// and as such fixing this leak is hard/impossible
aiScene * temp;
aiCopyScene(this->scene, &temp);
keep_faces(this->walkable_faces, temp);
if(AI_SUCCESS == exporter.Export(temp, format, filepath+filename)) {
return true;
}
std::cerr << exporter.GetErrorString() << std::endl;
return false;
}
TEST_F( utIssues, OpacityBugWhenExporting_727 ) {
float opacity;
aiScene *scene( TestModelFacttory::createDefaultTestModel( opacity ) );
Assimp::Importer importer;
Assimp::Exporter exporter;
std::string path = "dae";
const aiExportFormatDesc *desc( exporter.GetExportFormatDescription( 0 ) );
EXPECT_NE( desc, nullptr );
path.append( desc->fileExtension );
EXPECT_EQ( AI_SUCCESS, exporter.Export( scene, desc->id, path ) );
const aiScene *newScene( importer.ReadFile( path, 0 ) );
EXPECT_TRUE( NULL != newScene );
float newOpacity;
if ( newScene->mNumMaterials > 0 ) {
std::cout << "Desc = " << desc->description << "\n";
EXPECT_EQ( AI_SUCCESS, newScene->mMaterials[ 0 ]->Get( AI_MATKEY_OPACITY, newOpacity ) );
EXPECT_EQ( opacity, newOpacity );
}
}
void ColladaExporter::save(const TMD::PostProcessed::Data_t& data, const std::vector<CAT::ResourceEntry_t::SubEntry_t>& references) {
boost::filesystem::path output_path(_export_folder);
output_path /= "tmd";
boost::filesystem::path dae_filename(output_path);
dae_filename += _dae_suffix;
/*std::ofstream dae_out;
open_to_write(dae_out, dae_filename);
LeftPad_t pad{ 0 };
PaddedOstream pad_out(dae_out, pad);
write_document(pad_out, data);
dae_out.close();*/
aiScene scene;
create_assimp_scene(scene, data);
Assimp::Exporter exporter;
auto export_format = exporter.GetExportFormatDescription(0);
exporter.Export(&scene, export_format->id, dae_filename.string().c_str());
}
void IrrAssimpExport::writeFile(irr::scene::IMesh* mesh, irr::core::stringc format, irr::core::stringc filename)
{
Assimp::Exporter exporter;
aiScene* scene = new aiScene();
scene->mRootNode = new aiNode();
scene->mRootNode->mNumMeshes = mesh->getMeshBufferCount();
scene->mRootNode->mMeshes = new unsigned int[mesh->getMeshBufferCount()];
for (unsigned int i = 0; i < mesh->getMeshBufferCount(); ++i)
scene->mRootNode->mMeshes[i] = i;
scene->mNumMeshes = mesh->getMeshBufferCount();
scene->mMeshes = new aiMesh*[scene->mNumMeshes];
scene->mNumMaterials = scene->mNumMeshes;
scene->mMaterials = new aiMaterial*[scene->mNumMeshes];
for (unsigned int i = 0; i < mesh->getMeshBufferCount(); ++i)
{
aiMesh* assMesh = new aiMesh();
irr::scene::IMeshBuffer* buffer = mesh->getMeshBuffer(i);
video::E_VERTEX_TYPE verticesType = buffer->getVertexType();
assMesh->mNumVertices = buffer->getVertexCount();
assMesh->mVertices = new aiVector3D[assMesh->mNumVertices];
assMesh->mNormals = new aiVector3D[assMesh->mNumVertices];
assMesh->mTextureCoords[0] = new aiVector3D[assMesh->mNumVertices];
assMesh->mNumUVComponents[0] = 2;
assMesh->mColors[0] = new aiColor4D[assMesh->mNumVertices];
if (verticesType == video::EVT_2TCOORDS)
{
assMesh->mTextureCoords[1] = new aiVector3D[assMesh->mNumVertices];
assMesh->mNumUVComponents[1] = 2;
}
if (verticesType == video::EVT_TANGENTS)
{
assMesh->mTangents = new aiVector3D[assMesh->mNumVertices];
assMesh->mBitangents = new aiVector3D[assMesh->mNumVertices];
}
video::S3DVertex* vertices = (video::S3DVertex*)buffer->getVertices();
video::S3DVertex2TCoords* tCoordsVertices;
verticesType == video::EVT_2TCOORDS ? tCoordsVertices = (video::S3DVertex2TCoords*) vertices : tCoordsVertices = 0;
video::S3DVertexTangents* tangentsVertices;
verticesType == video::EVT_TANGENTS ? tangentsVertices = (video::S3DVertexTangents*) vertices : tangentsVertices = 0;
for (unsigned int j = 0; j < buffer->getVertexCount(); ++j)
{
video::S3DVertex vertex = vertices[j];
core::vector3df position = vertex.Pos;
core::vector3df normal = vertex.Normal;
core::vector2df uv = vertex.TCoords;
video::SColor color = vertex.Color;
assMesh->mVertices[j] = aiVector3D(position.X, position.Y, position.Z);
assMesh->mNormals[j] = aiVector3D(normal.X, normal.Y, normal.Z);
assMesh->mTextureCoords[0][j] = aiVector3D(uv.X, uv.Y, 0);
assMesh->mColors[0][j] = aiColor4D(color.getRed() / 255.f, color.getGreen() / 255.f, color.getBlue() / 255.f, color.getAlpha() / 255.f);
if (verticesType == video::EVT_2TCOORDS)
{
video::S3DVertex2TCoords tCoordsVertex = tCoordsVertices[j];
core::vector2df uv2 = tCoordsVertex.TCoords2;
assMesh->mTextureCoords[1][j] = aiVector3D(uv2.X, uv2.Y, 0);
}
if (verticesType == video::EVT_TANGENTS)
{
video::S3DVertexTangents tangentsVertex = tangentsVertices[j];
core::vector3df tangent = tangentsVertex.Tangent;
core::vector3df binormal = tangentsVertex.Binormal;
assMesh->mTangents[j] = aiVector3D(tangent.X, tangent.Y, tangent.Z);
assMesh->mBitangents[j] = aiVector3D(binormal.X, binormal.Y, binormal.Z);
}
}
assMesh->mNumFaces = buffer->getIndexCount() / 3;
assMesh->mFaces = new aiFace[assMesh->mNumFaces];
for (unsigned int j = 0; j < assMesh->mNumFaces; ++j)
{
aiFace face;
face.mNumIndices = 3;
face.mIndices = new unsigned int[3];
face.mIndices[0] = buffer->getIndices()[3 * j + 0];
face.mIndices[1] = buffer->getIndices()[3 * j + 1];
face.mIndices[2] = buffer->getIndices()[3 * j + 2];
assMesh->mFaces[j] = face;
}
scene->mMaterials[i] = new aiMaterial();
scene->mMaterials[i]->mNumProperties = 0;
assMesh->mMaterialIndex = i;
video::SMaterial mat = buffer->getMaterial();
aiColor3D diffuseColor = IrrToAssimpColor(mat.DiffuseColor);
aiColor3D ambiantColor = IrrToAssimpColor(mat.AmbientColor);
aiColor3D emissiveColor = IrrToAssimpColor(mat.EmissiveColor);
aiColor3D specularColor = IrrToAssimpColor(mat.SpecularColor);
float shininess = mat.Shininess;
scene->mMaterials[i]->AddProperty(&diffuseColor, 1, AI_MATKEY_COLOR_DIFFUSE);
scene->mMaterials[i]->AddProperty(&ambiantColor, 1, AI_MATKEY_COLOR_AMBIENT);
scene->mMaterials[i]->AddProperty(&emissiveColor, 1, AI_MATKEY_COLOR_EMISSIVE);
scene->mMaterials[i]->AddProperty(&specularColor, 1, AI_MATKEY_COLOR_SPECULAR);
scene->mMaterials[i]->AddProperty(&shininess, 1, AI_MATKEY_SHININESS);
if (mat.getTexture(0))
{
aiString textureName = aiString(mat.getTexture(0)->getName().getPath().c_str());
scene->mMaterials[i]->AddProperty(&textureName, AI_MATKEY_TEXTURE_DIFFUSE(0));
}
if (mat.getTexture(1))
{
// Normal map
if ( mat.MaterialType == video::EMT_NORMAL_MAP_SOLID
|| mat.MaterialType == video::EMT_NORMAL_MAP_TRANSPARENT_ADD_COLOR
|| mat.MaterialType == video::EMT_NORMAL_MAP_TRANSPARENT_VERTEX_ALPHA
|| mat.MaterialType == video::EMT_PARALLAX_MAP_SOLID
|| mat.MaterialType == video::EMT_PARALLAX_MAP_TRANSPARENT_ADD_COLOR
|| mat.MaterialType == video::EMT_PARALLAX_MAP_TRANSPARENT_VERTEX_ALPHA)
{
aiString textureName = aiString(mat.getTexture(1)->getName().getPath().c_str());
scene->mMaterials[i]->AddProperty(&textureName, AI_MATKEY_TEXTURE_NORMALS(0));
}
}
scene->mMeshes[i] = assMesh;
}
exporter.Export(scene, format.c_str(), filename.c_str(), aiProcess_FlipUVs);
delete scene;
}
// ------------------------------------------------------------------------------
// Application entry point
int main (int argc, char* argv[])
{
if (argc <= 1) {
printf("assimp: No command specified. Use \'assimp help\' for a detailed command list\n");
return 0;
}
// assimp version
// Display version information
if (! strcmp(argv[1], "version")) {
const unsigned int flags = aiGetCompileFlags();
printf(AICMD_MSG_ABOUT,
aiGetVersionMajor(),
aiGetVersionMinor(),
(flags & ASSIMP_CFLAGS_DEBUG ? "-debug " : ""),
(flags & ASSIMP_CFLAGS_NOBOOST ? "-noboost " : ""),
(flags & ASSIMP_CFLAGS_SHARED ? "-shared " : ""),
(flags & ASSIMP_CFLAGS_SINGLETHREADED ? "-st " : ""),
(flags & ASSIMP_CFLAGS_STLPORT ? "-stlport " : ""),
aiGetVersionRevision());
return 0;
}
// assimp help
// Display some basic help (--help and -h work as well
// because people could try them intuitively)
if (!strcmp(argv[1], "help") || !strcmp(argv[1], "--help") || !strcmp(argv[1], "-h")) {
printf("%s",AICMD_MSG_HELP);
return 0;
}
// assimp cmpdump
// Compare two mini model dumps (regression suite)
if (! strcmp(argv[1], "cmpdump")) {
return Assimp_CompareDump (&argv[2],argc-2);
}
// construct global importer and exporter instances
Assimp::Importer imp;
imp.SetPropertyBool("GLOB_MEASURE_TIME",true);
globalImporter = &imp;
#ifndef ASSIMP_BUILD_NO_EXPORT
//
Assimp::Exporter exp;
globalExporter = &exp;
#endif
// assimp listext
// List all file extensions supported by Assimp
if (! strcmp(argv[1], "listext")) {
aiString s;
imp.GetExtensionList(s);
printf("%s\n",s.data);
return 0;
}
#ifndef ASSIMP_BUILD_NO_EXPORT
// assimp listexport
// List all export file formats supported by Assimp (not the file extensions, just the format identifiers!)
if (! strcmp(argv[1], "listexport")) {
aiString s;
for(size_t i = 0, end = exp.GetExportFormatCount(); i < end; ++i) {
const aiExportFormatDesc* const e = exp.GetExportFormatDescription(i);
s.Append( e->id );
if (i!=end-1) {
s.Append("\n");
}
}
printf("%s\n",s.data);
return 0;
}
// assimp exportinfo
// stat an export format
if (! strcmp(argv[1], "exportinfo")) {
aiString s;
if (argc<3) {
printf("Expected file format id\n");
return -11;
}
for(size_t i = 0, end = exp.GetExportFormatCount(); i < end; ++i) {
const aiExportFormatDesc* const e = exp.GetExportFormatDescription(i);
if (!strcmp(e->id,argv[2])) {
printf("%s\n%s\n%s\n",e->id,e->fileExtension,e->description);
return 0;
}
}
printf("Unknown file format id: \'%s\'\n",argv[2]);
return -12;
}
// assimp export
// Export a model to a file
if (! strcmp(argv[1], "export")) {
return Assimp_Export (&argv[2],argc-2);
}
#endif
// assimp knowext
// Check whether a particular file extension is known by us, return 0 on success
if (! strcmp(argv[1], "knowext")) {
if (argc<3) {
printf("Expected file extension");
return -10;
}
const bool b = imp.IsExtensionSupported(argv[2]);
printf("File extension \'%s\' is %sknown\n",argv[2],(b?"":"not "));
return b?0:-1;
}
// assimp info
// Print basic model statistics
if (! strcmp(argv[1], "info")) {
return Assimp_Info ((const char**)&argv[2],argc-2);
}
// assimp dump
// Dump a model to a file
if (! strcmp(argv[1], "dump")) {
return Assimp_Dump (&argv[2],argc-2);
}
// assimp extract
// Extract an embedded texture from a file
if (! strcmp(argv[1], "extract")) {
return Assimp_Extract (&argv[2],argc-2);
}
// assimp testbatchload
// Used by /test/other/streamload.py to load a list of files
// using the same importer instance to check for incompatible
// importers.
if (! strcmp(argv[1], "testbatchload")) {
return Assimp_TestBatchLoad (&argv[2],argc-2);
}
printf("Unrecognized command. Use \'assimp help\' for a detailed command list\n");
return 1;
}
bool AssimpModelExport::writeSceneToFile(
const aiScene *scene,
const std::string &filePath)
{
bool success = false;
if (scene)
{
boost::filesystem::path boostPath(filePath);
//--------------------------------------------------------------------------
// NOTE: This modifies links to textures, so after export, the
// scene for rendering won't be valid any more!
//--------------------------------------------------------------------------
if (scene->HasTextures())
{ // embedded textures found, replace pointers such as "*0" with "0.jpg"
aiReturn texFound;
int texIndex;
for (unsigned int i = 0; i < scene->mNumMaterials; ++i)
{
aiString path; // filename
texIndex = 0;
texFound = AI_SUCCESS;
while (texFound == AI_SUCCESS)
{
texFound = scene->mMaterials[i]->GetTexture(aiTextureType_DIFFUSE, texIndex, &path);
std::string name(path.data);
if (!name.empty())
{
name = name.substr(1, name.size()) + REPO_DEFAULT_TEXTURE_EXT; // remove leading '*' char
scene->mMaterials[i]->RemoveProperty(AI_MATKEY_TEXTURE_DIFFUSE(texIndex));
// TODO: watch out for mem-leak
scene->mMaterials[i]->AddProperty(new aiString(name.c_str()), AI_MATKEY_TEXTURE_DIFFUSE(texIndex));
texIndex++;
}
}
}
}
Assimp::Exporter exporter;
std::string extension = boostPath.extension().string();
std::string exportFormat = getExportFormatID(extension.substr(1, extension.size() - 1));
repoTrace << "Exporting repo scene using ASSIMP: export format = " << exportFormat << " to " << filePath;
if (exportFormat.empty())
{
repoError << "Unrecognised export format: " << boostPath.extension().string();
}
else
{
aiReturn ret = exporter.Export(scene, exportFormat, filePath, scene->mFlags);
switch (ret)
{
case aiReturn_FAILURE:
repoError << "Export failed due to unknown reason.";
break;
case aiReturn_OUTOFMEMORY:
repoError << "Export failed due to running out of memory.";
break;
case aiReturn_SUCCESS:
repoTrace << "Export completed successfully";
break;
case _AI_ENFORCE_ENUM_SIZE:
// Silently handle assimp's bogus enum-size-enforcing value.
break;
}
success = (ret == aiReturn_SUCCESS);
}
}
else{
repoError << "Trying to write a null pointer assimp scene!";
}
return success;
}
/*!
* \brief Export a cad model (vertices and faces) with the assimp library
* \author Sascha Kaden
* \param[in] format
* \param[in] filePath
* \param[in] list of vertices
* \param[in] list of faces
* \date 2017-02-19
*/
bool exportCad(ExportFormat format, const std::string &filePath, const std::vector<Vector3> &vertices,
const std::vector<Vector3i> &faces) {
if (filePath.empty()) {
Logging::warning("Empty output file path", "CadProcessing");
return false;
}
Assimp::Exporter exporter;
size_t maxFormatCount = exporter.GetExportFormatCount();
size_t formatCount;
switch (format) {
case ExportFormat::COLLADA:
formatCount = 0;
break;
case ExportFormat::X_FILES:
formatCount = 1;
break;
case ExportFormat::STEP:
formatCount = 2;
break;
case ExportFormat::OBJ:
formatCount = 3;
break;
case ExportFormat::STEREOLITHOGRAPHY:
formatCount = 4;
break;
case ExportFormat::STEREOLITHOGRAPHY_BINARY:
formatCount = 5;
break;
case ExportFormat::STANFORD_POLYGON_LIBRARY:
formatCount = 6;
break;
case ExportFormat::STANFORD_POLYGON_LIBRARY_BINARY:
formatCount = 7;
break;
case ExportFormat::AUTODESK_3DS:
formatCount = 8;
break;
case ExportFormat::GL_TRANSMISSION_FORMAT:
formatCount = 9;
break;
case ExportFormat::GL_TRANSMISSION_FORMAT_BINARY:
formatCount = 10;
break;
case ExportFormat::ASSIMP_BINARY:
formatCount = 11;
break;
case ExportFormat::ASSXML_DOCUMENT:
formatCount = 12;
break;
case ExportFormat::EXTENSIBLE_3D:
formatCount = 13;
break;
}
if (formatCount > maxFormatCount) {
Logging::warning("Selected format is not supported", "CadProcessing");
return false;
}
aiScene scene = generateScene(vertices, faces);
const aiExportFormatDesc *formatDesc = exporter.GetExportFormatDescription(formatCount);
exporter.Export(&scene, formatDesc->id, filePath + "." + formatDesc->fileExtension, aiProcess_Triangulate);
return true;
}
int run(int argc, char* argv[])
{
Arguments args;
args.add("help", 'h').description("Shows this help message.").flag(true);
args.add("input", 'i').description("Input filename").required(true);
args.add("output", 'o').description("Output filename").required(true);
args.add("format", 'f').description("Output format. Overrides file extension.");
args.add("axis", 'x').description("Change axis order of the cordinate system and polarity. (like +x+y+z, +x-z+y, ... )");
args.add("textures", 't').description("Strip path from texture filenames").flag(true);
// parse args
if (!args.evaluate(argc, argv)) {
cout << args.getErrorMessage() << endl;
cout << args.getHelpMessage() << endl;
return 1;
}
// print help
if (argc == 1 || args.get("help").isFound()) {
cout << args.getHelpMessage() << endl;
return 0;
}
string inFileName = args.get("input").value();
string outFileName = args.get("output").value();
string outExtension;
// determine file format
if (!args.get("format").isFound())
{
string::size_type n;
string s = outFileName;
n = s.find_last_of('.');
if (n != string::npos) {
s = s.substr(n + 1);
}
if (s.empty()) {
outExtension = "assbin";
cout << "WARNING: No file extension was given. Using assbin format for default." << endl;
}
else {
outExtension = s;
}
}
else {
outExtension = args.get("format").value();
}
// import scene
Assimp::Importer aiImporter;
aiScene const * scene = aiImporter.ReadFile(inFileName.c_str(),
aiProcessPreset_TargetRealtime_Quality |
aiProcess_ConvertToLeftHanded |
0);
if (scene == nullptr) {
cout << "Could not load model file" << inFileName << endl;
cout << aiImporter.GetErrorString() << endl;
return 1;
}
// flip axes
if (args.get("axis").isFound() && scene->HasMeshes()) {
string axesOrder = args.get("axis").value();
if (axesOrder.length() != 6) {
cout << args.getHelpMessage() << endl;
return 1;
}
char order[3];
char polarity[3];
uint k = 3;
while (k--) {
char c = axesOrder.at(2*k), b = -1;
char a = axesOrder.at(2*k+1), d = 1;
switch (a) {
case 'x': case 'X': b = 0; break;
case 'y': case 'Y': b = 1; break;
case 'z': case 'Z': b = 2; break;
default:
cout << args.getHelpMessage() << endl;
return 1;
}
switch (c) {
case '+': d = +1; break;
case '-': d = -1; break;
default:
cout << args.getHelpMessage() << endl;
return 1;
}
order[k] = b;
polarity[k] = d;
}
for (uint i = 0; i < scene->mNumMeshes; i++) {
aiMesh * const mesh = scene->mMeshes[i];
for (uint j = 0; j < mesh->mNumVertices; j++) {
swap_vertices(&mesh->mVertices[j], order, polarity);
swap_vertices(&mesh->mNormals[j], order, polarity);
}
}
}
// strip texture filenames
if (args.get("textures").isFound() && scene->HasMaterials()) {
for (uint i = 0; i < scene->mNumMaterials; i++) {
aiMaterial const * material = scene->mMaterials[i];
for (uint j = 0; j < sizeof(textureTypes) / sizeof(textureTypes[0]); j++) {
aiTextureType tt = textureTypes[j];
for (uint k = 0; k < material->GetTextureCount(tt); k++) {
aiString aiPath;
material->GetTexture(tt, k, &aiPath);
string path = aiPath.C_Str();
{
string s = path;
string::size_type n, m;
n = s.find_last_of('/');
m = s.find_last_of('\\');
if (n != string::npos) {
s = s.substr(n + 1);
}
else if (m != string::npos) {
s = s.substr(m + 1);
}
if (!s.empty()) {
path = s;
}
}
// textura filenev vissza
const aiMaterialProperty* pp = nullptr;
if (aiGetMaterialProperty(material, AI_MATKEY_TEXTURE(tt, k), &pp) == AI_SUCCESS) {
aiMaterialProperty* pProp = const_cast<aiMaterialProperty*>(pp);
if (aiPTI_String == pProp->mType) {
size_t newLen = path.length() + 4;
char* newData = (char*)malloc(newLen);
(*(uint*)(&newData[0])) = path.length();
memcpy_s(&newData[4], newLen, path.c_str(), path.length());
free(pProp->mData);
pProp->mData = newData;
pProp->mDataLength = newLen;
}
}
}
}
}
}
// save
Assimp::Exporter aiExporter;
if (aiExporter.Export(scene, outExtension, outFileName) != aiReturn_SUCCESS) {
cout << "Could not save model file" << endl;
cout << aiExporter.GetErrorString() << endl;
return 1;
}
return 0;
}
void OBJWriter::write(const std::shared_ptr<gameplay::Model>& model,
const std::string& baseName,
const std::map<loader::TextureLayoutProxy::TextureKey, std::shared_ptr<gameplay::Material>>& mtlMap1,
const std::map<loader::TextureLayoutProxy::TextureKey, std::shared_ptr<gameplay::Material>>& mtlMap2,
const glm::vec3& ambientColor) const
{
Expects(model != nullptr);
auto fullPath = m_basePath / baseName;
Assimp::Exporter exporter;
std::string formatIdentifier;
for(size_t i = 0; i < exporter.GetExportFormatCount(); ++i)
{
auto descr = exporter.GetExportFormatDescription(i);
BOOST_ASSERT(descr != nullptr);
std::string exporterExtension = std::string(".") + descr->fileExtension;
if(exporterExtension == fullPath.extension().string())
{
formatIdentifier = descr->id;
break;
}
}
if(formatIdentifier.empty())
{
BOOST_LOG_TRIVIAL(error) << "Failed to find an exporter for the supplied file extension";
BOOST_LOG_TRIVIAL(info) << "Here's the list of registered exporters";
for(size_t i = 0; i < exporter.GetExportFormatCount(); ++i)
{
auto descr = exporter.GetExportFormatDescription(i);
BOOST_ASSERT(descr != nullptr);
BOOST_LOG_TRIVIAL(info) << descr->description << ", extension `" << descr->fileExtension << "`, id `" << descr->id << "`";
}
BOOST_THROW_EXCEPTION(std::runtime_error("Failed to find an exporter for the supplied file extension"));
}
std::unique_ptr<aiScene> scene = std::make_unique<aiScene>();
BOOST_ASSERT(scene->mRootNode == nullptr);
scene->mRootNode = new aiNode();
{
size_t totalPartCount = 0;
for( const auto& mesh : model->getMeshes() )
{
totalPartCount += mesh->getPartCount();
}
scene->mNumMaterials = totalPartCount;
scene->mMaterials = new aiMaterial*[totalPartCount];
std::fill_n(scene->mMaterials, totalPartCount, nullptr);
scene->mNumMeshes = totalPartCount;
scene->mMeshes = new aiMesh*[totalPartCount];
std::fill_n(scene->mMeshes, totalPartCount, nullptr);
scene->mRootNode->mNumMeshes = totalPartCount;
scene->mRootNode->mMeshes = new unsigned int[totalPartCount];
for( size_t i = 0; i < totalPartCount; ++i )
scene->mRootNode->mMeshes[i] = i;
}
for( size_t mi = 0, globalPartIndex = 0; mi < model->getMeshes().size(); ++mi )
{
BOOST_ASSERT(mi < scene->mNumMeshes);
const auto& mesh = model->getMeshes()[mi];
for( size_t pi = 0; pi < mesh->getPartCount(); ++pi , ++globalPartIndex )
{
BOOST_ASSERT(globalPartIndex < scene->mNumMaterials);
const std::shared_ptr<gameplay::MeshPart>& part = mesh->getPart(pi);
scene->mMeshes[globalPartIndex] = new aiMesh();
aiMesh* outMesh = scene->mMeshes[globalPartIndex];
allocateElementMemory(mesh, outMesh);
copyVertexData(mesh, outMesh);
BOOST_ASSERT(part->getPrimitiveType() == gameplay::Mesh::PrimitiveType::TRIANGLES && part->getIndexCount() % 3 == 0);
outMesh->mMaterialIndex = globalPartIndex;
scene->mMaterials[globalPartIndex] = new aiMaterial();
scene->mMaterials[globalPartIndex]->AddProperty(new aiColor4D(ambientColor.r, ambientColor.g, ambientColor.b, 1), 1, AI_MATKEY_COLOR_AMBIENT);
{
// try to find the texture for our material
using Entry = decltype(*mtlMap1.begin());
auto finder = [&part](const Entry& entry)
{
return entry.second == part->getMaterial();
};
auto texIt = std::find_if(mtlMap1.begin(), mtlMap1.end(), finder);
bool found = false;
if( texIt != mtlMap1.end() )
{
scene->mMaterials[globalPartIndex]->AddProperty(new aiString(makeTextureName(texIt->first.tileAndFlag & TextureIndexMask) + ".png"), AI_MATKEY_TEXTURE_DIFFUSE(0));
found = true;
}
if( !found )
{
texIt = std::find_if(mtlMap2.begin(), mtlMap2.end(), finder);
if( texIt != mtlMap2.end() )
{
scene->mMaterials[globalPartIndex]->AddProperty(new aiString(makeTextureName(texIt->first.tileAndFlag & TextureIndexMask) + ".png"), AI_MATKEY_TEXTURE_DIFFUSE(0));
}
}
}
outMesh->mNumFaces = part->getIndexCount() / 3;
outMesh->mFaces = new aiFace[outMesh->mNumFaces];
switch( part->getIndexFormat() )
{
case gameplay::Mesh::INDEX8:
copyIndices<uint8_t>(part, outMesh);
break;
case gameplay::Mesh::INDEX16:
copyIndices<uint16_t>(part, outMesh);
break;
case gameplay::Mesh::INDEX32:
copyIndices<uint32_t>(part, outMesh);
break;
default:
break;
}
}
}
exporter.Export(scene.get(), formatIdentifier.c_str(), fullPath.string(), aiProcess_JoinIdenticalVertices | aiProcess_ValidateDataStructure | aiProcess_FlipUVs);
}
/* Exports the scene to the given filename */
int Exporter::writeToFile(Scene *scene, const std::string filename) {
if (!scene || filename.empty()) {
LOGW("Exporting to invalid filename or current scene is invalid.");
return -1;
}
Assimp::Exporter exporter;
const char *format_description_id = findFormatDescription(exporter, filename);
if (!format_description_id) {
LOGW("Failure to find supported format description to %s", filename.c_str());
return -1;
}
aiScene aiscene;
gvr2aiScene(*scene, aiscene);
if (aiscene.mNumMeshes > 0) {
LOGD("Exporting scene to %s\n", filename.c_str());
exporter.Export(&aiscene, format_description_id, filename);
}
return 0;
}