Added binary ply exporter.
parent
06f80024cb
commit
4550279629
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@ -78,6 +78,7 @@ void ExportSceneObj(const char*,IOSystem*, const aiScene*);
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void ExportSceneSTL(const char*,IOSystem*, const aiScene*);
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void ExportSceneSTLBinary(const char*,IOSystem*, const aiScene*);
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void ExportScenePly(const char*,IOSystem*, const aiScene*);
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void ExportScenePlyBinary(const char*, IOSystem*, const aiScene*);
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void ExportScene3DS(const char*, IOSystem*, const aiScene*);
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void ExportSceneAssbin(const char*, IOSystem*, const aiScene*);
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void ExportSceneAssxml(const char*, IOSystem*, const aiScene*);
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@ -113,6 +114,9 @@ Exporter::ExportFormatEntry gExporters[] =
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Exporter::ExportFormatEntry( "ply", "Stanford Polygon Library", "ply" , &ExportScenePly,
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aiProcess_PreTransformVertices
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),
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Exporter::ExportFormatEntry("plyb", "Stanford Polygon Library Binary", "ply", &ExportScenePlyBinary,
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aiProcess_PreTransformVertices
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),
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#endif
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#ifndef ASSIMP_BUILD_NO_3DS_EXPORTER
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@ -56,7 +56,7 @@ void ExportScenePly(const char* pFile,IOSystem* pIOSystem, const aiScene* pScene
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PlyExporter exporter(pFile, pScene);
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// we're still here - export successfully completed. Write the file.
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boost::scoped_ptr<IOStream> outfile (pIOSystem->Open(pFile,"wt"));
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boost::scoped_ptr<IOStream> outfile (pIOSystem->Open(pFile,"wt"));
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if(outfile == NULL) {
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throw DeadlyExportError("could not open output .ply file: " + std::string(pFile));
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}
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@ -64,6 +64,20 @@ void ExportScenePly(const char* pFile,IOSystem* pIOSystem, const aiScene* pScene
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outfile->Write( exporter.mOutput.str().c_str(), static_cast<size_t>(exporter.mOutput.tellp()),1);
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}
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void ExportScenePlyBinary(const char* pFile, IOSystem* pIOSystem, const aiScene* pScene)
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{
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// invoke the exporter
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PlyExporter exporter(pFile, pScene, true);
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// we're still here - export successfully completed. Write the file.
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boost::scoped_ptr<IOStream> outfile(pIOSystem->Open(pFile, "wb"));
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if (outfile == NULL) {
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throw DeadlyExportError("could not open output .ply file: " + std::string(pFile));
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}
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outfile->Write(exporter.mOutput.str().c_str(), static_cast<size_t>(exporter.mOutput.tellp()), 1);
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}
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} // end of namespace Assimp
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#define PLY_EXPORT_HAS_NORMALS 0x1
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@ -72,7 +86,7 @@ void ExportScenePly(const char* pFile,IOSystem* pIOSystem, const aiScene* pScene
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#define PLY_EXPORT_HAS_COLORS (PLY_EXPORT_HAS_TEXCOORDS << AI_MAX_NUMBER_OF_TEXTURECOORDS)
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// ------------------------------------------------------------------------------------------------
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PlyExporter :: PlyExporter(const char* _filename, const aiScene* pScene)
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PlyExporter::PlyExporter(const char* _filename, const aiScene* pScene, bool binary)
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: filename(_filename)
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, pScene(pScene)
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, endl("\n")
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@ -102,7 +116,18 @@ PlyExporter :: PlyExporter(const char* _filename, const aiScene* pScene)
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}
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mOutput << "ply" << endl;
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mOutput << "format ascii 1.0" << endl;
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if (binary)
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{
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#if (defined AI_BUILD_BIG_ENDIAN)
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mOutput << "format binary_big_endian 1.0" << endl;
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#else
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mOutput << "format binary_little_endian 1.0" << endl;
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#endif
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}
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else
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{
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mOutput << "format ascii 1.0" << endl;
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}
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mOutput << "comment Created by Open Asset Import Library - http://assimp.sf.net (v"
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<< aiGetVersionMajor() << '.' << aiGetVersionMinor() << '.'
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<< aiGetVersionRevision() << ")" << endl;
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@ -160,13 +185,19 @@ PlyExporter :: PlyExporter(const char* _filename, const aiScene* pScene)
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mOutput << "element face " << faces << endl;
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mOutput << "property list uint uint vertex_index" << endl;
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mOutput << "end_header" << endl;
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mOutput << "end_header" << endl;
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for (unsigned int i = 0; i < pScene->mNumMeshes; ++i) {
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WriteMeshVerts(pScene->mMeshes[i],components);
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if (binary)
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WriteMeshVertsBinary(pScene->mMeshes[i], components);
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else
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WriteMeshVerts(pScene->mMeshes[i], components);
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}
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for (unsigned int i = 0, ofs = 0; i < pScene->mNumMeshes; ++i) {
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WriteMeshIndices(pScene->mMeshes[i],ofs);
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if (binary)
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WriteMeshIndicesBinary(pScene->mMeshes[i], ofs);
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else
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WriteMeshIndices(pScene->mMeshes[i], ofs);
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ofs += pScene->mMeshes[i]->mNumVertices;
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}
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}
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@ -236,6 +267,54 @@ void PlyExporter :: WriteMeshVerts(const aiMesh* m, unsigned int components)
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}
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}
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// ------------------------------------------------------------------------------------------------
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void PlyExporter::WriteMeshVertsBinary(const aiMesh* m, unsigned int components)
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{
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aiVector3D defaultNormal(0, 0, 0);
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aiVector2D defaultUV(-1, -1);
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aiColor4D defaultColor(-1, -1, -1, -1);
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for (unsigned int i = 0; i < m->mNumVertices; ++i) {
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mOutput.write(reinterpret_cast<const char*>(&m->mVertices[i].x), 12);
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if (components & PLY_EXPORT_HAS_NORMALS) {
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if (m->HasNormals()) {
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mOutput.write(reinterpret_cast<const char*>(&m->mNormals[i].x), 12);
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}
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else {
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mOutput.write(reinterpret_cast<const char*>(&defaultNormal.x), 12);
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}
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}
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for (unsigned int n = PLY_EXPORT_HAS_TEXCOORDS, c = 0; (components & n) && c != AI_MAX_NUMBER_OF_TEXTURECOORDS; n <<= 1, ++c) {
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if (m->HasTextureCoords(c)) {
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mOutput.write(reinterpret_cast<const char*>(&m->mTextureCoords[c][i].x), 6);
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}
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else {
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mOutput.write(reinterpret_cast<const char*>(&defaultUV.x), 6);
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}
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}
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for (unsigned int n = PLY_EXPORT_HAS_COLORS, c = 0; (components & n) && c != AI_MAX_NUMBER_OF_COLOR_SETS; n <<= 1, ++c) {
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if (m->HasVertexColors(c)) {
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mOutput.write(reinterpret_cast<const char*>(&m->mColors[c][i].r), 16);
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}
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else {
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mOutput.write(reinterpret_cast<const char*>(&defaultColor.r), 16);
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}
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}
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if (components & PLY_EXPORT_HAS_TANGENTS_BITANGENTS) {
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if (m->HasTangentsAndBitangents()) {
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mOutput.write(reinterpret_cast<const char*>(&m->mTangents[i].x), 12);
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mOutput.write(reinterpret_cast<const char*>(&m->mBitangents[i].x), 12);
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}
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else {
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mOutput.write(reinterpret_cast<const char*>(&defaultNormal.x), 12);
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mOutput.write(reinterpret_cast<const char*>(&defaultNormal.x), 12);
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}
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}
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}
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}
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// ------------------------------------------------------------------------------------------------
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void PlyExporter :: WriteMeshIndices(const aiMesh* m, unsigned int offset)
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{
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@ -248,4 +327,16 @@ void PlyExporter :: WriteMeshIndices(const aiMesh* m, unsigned int offset)
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}
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}
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void PlyExporter::WriteMeshIndicesBinary(const aiMesh* m, unsigned int offset)
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{
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for (unsigned int i = 0; i < m->mNumFaces; ++i) {
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const aiFace& f = m->mFaces[i];
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mOutput.write(reinterpret_cast<const char*>(&f.mNumIndices), 4);
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for (unsigned int c = 0; c < f.mNumIndices; ++c) {
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unsigned int index = f.mIndices[c] + offset;
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mOutput.write(reinterpret_cast<const char*>(&index), 4);
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}
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}
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}
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#endif
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@ -59,7 +59,7 @@ class PlyExporter
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{
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public:
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/// Constructor for a specific scene to export
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PlyExporter(const char* filename, const aiScene* pScene);
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PlyExporter(const char* filename, const aiScene* pScene, bool binary = false);
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public:
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@ -71,6 +71,9 @@ private:
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void WriteMeshVerts(const aiMesh* m, unsigned int components);
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void WriteMeshIndices(const aiMesh* m, unsigned int ofs);
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void WriteMeshVertsBinary(const aiMesh* m, unsigned int components);
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void WriteMeshIndicesBinary(const aiMesh* m, unsigned int offset);
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private:
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const std::string filename;
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