web::json::value gltfWriter::WriteTexture (FbxTexture *pTexture) {
utility::string_t name =utility::conversions::to_string_t (pTexture->GetNameWithoutNameSpacePrefix ().Buffer ()) ;
utility::string_t uri =utility::conversions::to_string_t (FbxCast<FbxFileTexture> (pTexture)->GetRelativeFileName ()) ;
web::json::value image =web::json::value::object ({{
name, web::json::value::object ({
{ U("name"), web::json::value::string (name) },
{ U("uri"), web::json::value::string (uri) }
}) }
}) ;
if ( GetIOSettings ()->GetBoolProp (IOSN_FBX_GLTF_EMBEDMEDIA, false) ) {
// data:[<mime type>][;charset=<charset>][;base64],<encoded data>
FbxString imageFile =FbxCast<FbxFileTexture> (pTexture)->GetFileName () ;
image [name] [U("uri")] =web::json::value::string (IOglTF::dataURI (utility::conversions::to_string_t (imageFile.Buffer ()))) ;
} /*else*/
if ( GetIOSettings ()->GetBoolProp (IOSN_FBX_GLTF_COPYMEDIA, false) ) {
FbxString path =FbxPathUtils::GetFolderName (utility::conversions::to_utf8string (_fileName).c_str ()) ;
#if defined(_WIN32) || defined(_WIN64)
path +="\\" ;
#else
path +="/" ;
#endif
FbxString imageFile =FbxCast<FbxFileTexture> (pTexture)->GetFileName () ;
std::ifstream src (imageFile.Buffer (), std::ios::binary) ;
std::ofstream dst (path + FbxPathUtils::GetFileName (imageFile), std::ios::binary) ;
dst << src.rdbuf () ;
}
utility::string_t texName =createTextureName (pTexture->GetNameWithoutNameSpacePrefix ()) ;
utility::string_t samplerName =createSamplerName (pTexture->GetNameWithoutNameSpacePrefix ()) ;
web::json::value textureDef =web::json::value::object ({
{ U("name"), web::json::value::string (texName) },
{ U("format"), web::json::value::number ((int)IOglTF::RGBA) }, // todo
{ U("internalFormat"), web::json::value::number ((int)IOglTF::RGBA) }, // todo
{ U("sampler"), web::json::value::string (samplerName) }, // todo do I need one everytime
{ U("source"), web::json::value::string (name) },
{ U("target"), web::json::value::number ((int)IOglTF::TEXTURE_2D) },
{ U("type"), web::json::value::number ((int)IOglTF::UNSIGNED_BYTE) } // todo
}) ;
web::json::value texture =web::json::value::object ({{ texName, textureDef }}) ;
//TODO: Shall try to find a similar sampler defined already vs create one each time?
web::json::value samplerDef =web::json::value::object ({
{ U("name"), web::json::value::string (samplerName) },
{ U("magFilter"), web::json::value::number ((int)IOglTF::LINEAR) },
{ U("minFilter"), web::json::value::number ((int)IOglTF::LINEAR_MIPMAP_LINEAR) },
{ U("wrapS"), web::json::value::number ((int)(pTexture->WrapModeU.Get () == FbxTexture::eRepeat ? IOglTF::REPEAT : IOglTF::CLAMP_TO_EDGE)) },
{ U("wrapT"), web::json::value::number ((int)(pTexture->WrapModeV.Get () == FbxTexture::eRepeat ? IOglTF::REPEAT : IOglTF::CLAMP_TO_EDGE)) }
}) ;
return (web::json::value::object ({
{ U("images"), image },
{ U("textures"), web::json::value::object ({{ texName, textureDef }}) },
{ U("samplers"), web::json::value::object ({{ samplerName, samplerDef }}) }
})) ;
}
bool gltfPackage::WriteScene (const std::string &outdir) {
auto pMgr =fbxSdkMgr::Instance ()->fbxMgr () ;
int iFormat =pMgr->GetIOPluginRegistry ()->FindWriterIDByExtension ("gltf") ;
if ( iFormat == -1 )
return (false) ;
FbxAutoDestroyPtr<FbxExporter> pExporter (FbxExporter::Create (pMgr, "")) ;
std::string newFn =outdir + (_scene->GetName ()) + (".gltf") ;
bool bRet =pExporter->Initialize ((newFn).c_str (), iFormat, pMgr->GetIOSettings ()) ;
assert( bRet ) ;
if ( !bRet )
return (false) ;
// The next line will call the exporter
bRet =pExporter->Export (_scene) ;
return (bRet) ;
}
bool gltfPackage::LoadScene (const std::string &fn) {
auto pMgr =fbxSdkMgr::Instance ()->fbxMgr () ;
FbxAutoDestroyPtr<FbxImporter> pImporter (FbxImporter::Create (pMgr, "")) ;
if ( !pImporter->Initialize ((fn).c_str (), -1, pMgr->GetIOSettings ()) )
return (false) ;
if ( pImporter->IsFBX () ) {
// From this point, it is possible to access animation stack information without
// the expense of loading the entire file.
// Set the import states. By default, the import states are always set to true.
}
bool bStatus =pImporter->Import (_scene) ;
if ( _ioSettings._name.length () )
_scene->SetName ((_ioSettings._name).c_str ()) ;
else if ( _scene->GetName () == FbxString ("") )
//_scene->SetName ("untitled") ;
_scene->SetName ((gltfPackage::filename (fn)).c_str ()) ;
//if ( bStatus == false && pImporter->GetStatus ().GetCode () == FbxStatus::ePasswordError ) {
//}
// Get current UpAxis of the FBX file.
// This have to be done before ConvertiAxisSystem(), cause the function will always change SceneAxisSystem to Y-up.
// First, however, if we have the ForcedFileAxis activated, we need to overwrite the global settings.
//switch ( IOS_REF.GetEnumProp (IMP_FILE_UP_AXIS, FbxMayaUtility::eUPAXIS_AUTO) ) {
// default:
// case FbxMayaUtility::eUPAXIS_AUTO:
// break ;
// case FbxMayaUtility::eUPAXIS_Y:
// _scene->GetGlobalSettings ().SetAxisSystem (FbxAxisSystem::MayaYUp) ;
// break ;
// case FbxMayaUtility::eUPAXIS_Z:
// _scene->GetGlobalSettings ().SetAxisSystem (FbxAxisSystem::MayaZUp) ;
// break ;
//}
//FbxAxisSystem sceneAxisSystem =_scene->GetGlobalSettings ().GetAxisSystem () ;
//int lSign =0 ;
//FbxAxisSystem::EUpVector upVectorFromFile =sceneAxisSystem.GetUpVector (lSign) ;
FbxAxisSystem::MayaYUp.ConvertScene (_scene) ; // We want the Y up axis for glTF
FbxSystemUnit sceneSystemUnit =_scene->GetGlobalSettings ().GetSystemUnit () ; // We want meter as default unit for gltTF
if ( sceneSystemUnit != FbxSystemUnit::m ) {
//const FbxSystemUnit::ConversionOptions conversionOptions ={
// false, // mConvertRrsNodes
// true, // mConvertAllLimits
// true, // mConvertClusters
// false, // mConvertLightIntensity
// true, // mConvertPhotometricLProperties
// false // mConvertCameraClipPlanes
//} ;
//FbxSystemUnit::m.ConvertScene (_scene, conversionOptions) ;
FbxSystemUnit::m.ConvertScene (_scene) ;
}
FbxGeometryConverter converter (fbxSdkMgr::Instance ()->fbxMgr ()) ;
converter.Triangulate (_scene, true) ; // glTF supports triangles only
converter.SplitMeshesPerMaterial (_scene, true) ; // Split meshes per material, so we only have one material per mesh (VBO support)
// Set the current peripheral to be the NULL so FBX geometries that have been imported can be flushed
_scene->SetPeripheral (NULL_PERIPHERAL) ;
//int nb =_scene->GetSrcObjectCount<FbxNodeAttribute> () ;
//int nbTot =5 * nb ;
//int nbRest =4 * nb ;
//int nbSteps =nbRest / 8 ;
//FbxArray<FbxNode *> pBadMeshes =RemoveBadPolygonsFromMeshes (_scene) ;
return (true) ;
}
bool gltfWriter::WriteShaders () {
//web::json::value buffer =web::json::value::object () ;
//FbxString filename =FbxPathUtils::GetFileName (utility::conversions::to_utf8string (_fileName).c_str (), false) ;
//buffer [U("name")] =web::json::value::string (utility::conversions::to_string_t (filename.Buffer ())) ;
//buffer [U("uri")] =web::json::value::string (utility::conversions::to_string_t ((filename + ".bin").Buffer ())) ;
//// The Buffer file should be fully completed by now.
//if ( GetIOSettings ()->GetBoolProp (IOSN_FBX_GLTF_EMBEDMEDIA, false) ) {
// // data:[<mime type>][;charset=<charset>][;base64],<encoded data>
// buffer [U("uri")] =web::json::value::string (IOglTF::dataURI (_bin)) ;
//}
//if ( _writeDefaults )
// buffer [U("type")] =web::json::value::string (U("arraybuffer")) ; ; // default is arraybuffer
//buffer [U("byteLength")] =web::json::value::number ((int)_bin.tellg ()) ;
//_json [U("buffers")] [utility::conversions::to_string_t (filename.Buffer ())] =buffer ;
//web::json::value techs =_json [U("techniques")] ;
//for ( auto iter =techs.as_object ().begin () ; iter != techs.as_object ().end () ; iter++ ) {
// glslTech test (iter->second) ;
// ucout << test.vertexShader ().source ()
// << std::endl ;
//}
web::json::value materials =_json [U("materials")] ;
for ( auto iter =materials.as_object ().begin () ; iter != materials.as_object ().end () ; iter++ ) {
utility::string_t name =iter->first ;
utility::string_t techniqueName =iter->second [U("technique")].as_string () ;
glslTech tech (
_json [U("techniques")] [techniqueName],
iter->second [U("values")],
_json
) ;
utility::string_t programName =_json [U("techniques")] [techniqueName] [U("program")].as_string () ;
utility::string_t vsName =_json [U("programs")] [programName] [U("vertexShader")].as_string () ;
utility::string_t fsName =_json [U("programs")] [programName] [U("fragmentShader")].as_string () ;
if ( GetIOSettings ()->GetBoolProp (IOSN_FBX_GLTF_EMBEDMEDIA, false) ) {
// data:[<mime type>][;charset=<charset>][;base64],<encoded data>
_json [U("shaders")] [vsName] [U("uri")] =web::json::value::string (IOglTF::dataURI (tech.vertexShader ().source ())) ;
_json [U("shaders")] [fsName] [U("uri")] =web::json::value::string (IOglTF::dataURI (tech.fragmentShader ().source ())) ;
} else {
FbxString gltfFilename (utility::conversions::to_utf8string (_fileName).c_str ()) ;
utility::string_t vsFilename =_json [U("shaders")] [vsName] [U("uri")].as_string () ;
{
FbxString shaderFilename (utility::conversions::to_utf8string (vsFilename).c_str ()) ;
#if defined(_WIN32) || defined(_WIN64)
shaderFilename =FbxPathUtils::GetFolderName (gltfFilename) + "\\" + shaderFilename ;
#else
shaderFilename =FbxPathUtils::GetFolderName (fileName) + "/" + shaderFilename ;
#endif
std::wfstream shaderFile (shaderFilename, std::ios::out | std::ofstream::binary) ;
//_bin.seekg (0, std::ios_base::beg) ;
shaderFile.write (tech.vertexShader ().source ().c_str (), tech.vertexShader ().source ().length ()) ;
shaderFile.close () ;
}
utility::string_t fsFileame =_json [U("shaders")] [fsName] [U("uri")].as_string () ;
{
FbxString shaderFilename (utility::conversions::to_utf8string (fsFileame).c_str ()) ;
#if defined(_WIN32) || defined(_WIN64)
shaderFilename =FbxPathUtils::GetFolderName (gltfFilename) + "\\" + shaderFilename ;
#else
shaderFilename =FbxPathUtils::GetFolderName (fileName) + "/" + shaderFilename ;
#endif
std::wfstream shaderFile (shaderFilename, std::ios::out | std::ofstream::binary) ;
//_bin.seekg (0, std::ios_base::beg) ;
shaderFile.write (tech.fragmentShader ().source ().c_str (), tech.fragmentShader ().source ().length ()) ;
shaderFile.close () ;
}
}
}
return (true) ;
}
