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Diffstat (limited to 'src/3rdparty/assimp/code/BlenderLoader.cpp')
| -rw-r--r-- | src/3rdparty/assimp/code/BlenderLoader.cpp | 1318 |
1 files changed, 0 insertions, 1318 deletions
diff --git a/src/3rdparty/assimp/code/BlenderLoader.cpp b/src/3rdparty/assimp/code/BlenderLoader.cpp deleted file mode 100644 index 824954f56..000000000 --- a/src/3rdparty/assimp/code/BlenderLoader.cpp +++ /dev/null @@ -1,1318 +0,0 @@ - -/* -Open Asset Import Library (assimp) ----------------------------------------------------------------------- - -Copyright (c) 2006-2017, assimp team - -All rights reserved. - -Redistribution and use of this software in source and binary forms, -with or without modification, are permitted provided that the -following conditions are met: - -* Redistributions of source code must retain the above - copyright notice, this list of conditions and the - following disclaimer. - -* Redistributions in binary form must reproduce the above - copyright notice, this list of conditions and the - following disclaimer in the documentation and/or other - materials provided with the distribution. - -* Neither the name of the assimp team, nor the names of its - contributors may be used to endorse or promote products - derived from this software without specific prior - written permission of the assimp team. - -THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - ----------------------------------------------------------------------- -*/ - -/** @file BlenderLoader.cpp - * @brief Implementation of the Blender3D importer class. - */ - - -//#define ASSIMP_BUILD_NO_COMPRESSED_BLEND -// Uncomment this to disable support for (gzip)compressed .BLEND files - -#ifndef ASSIMP_BUILD_NO_BLEND_IMPORTER - -#include "BlenderIntermediate.h" -#include "BlenderModifier.h" -#include "BlenderBMesh.h" -#include "StringUtils.h" -#include <assimp/scene.h> -#include <assimp/importerdesc.h> - -#include "StringComparison.h" -#include "StreamReader.h" -#include "MemoryIOWrapper.h" - -#include <cctype> - - -// zlib is needed for compressed blend files -#ifndef ASSIMP_BUILD_NO_COMPRESSED_BLEND -# ifdef ASSIMP_BUILD_NO_OWN_ZLIB -# include <zlib.h> -# else -# include "../contrib/zlib/zlib.h" -# endif -#endif - -namespace Assimp { - template<> const char* LogFunctions<BlenderImporter>::Prefix() - { - static auto prefix = "BLEND: "; - return prefix; - } -} - -using namespace Assimp; -using namespace Assimp::Blender; -using namespace Assimp::Formatter; - -static const aiImporterDesc blenderDesc = { - "Blender 3D Importer \nhttp://www.blender3d.org", - "", - "", - "No animation support yet", - aiImporterFlags_SupportBinaryFlavour, - 0, - 0, - 2, - 50, - "blend" -}; - - -// ------------------------------------------------------------------------------------------------ -// Constructor to be privately used by Importer -BlenderImporter::BlenderImporter() -: modifier_cache(new BlenderModifierShowcase()) { - // empty -} - -// ------------------------------------------------------------------------------------------------ -// Destructor, private as well -BlenderImporter::~BlenderImporter() -{ - delete modifier_cache; -} - -static const char* Tokens[] = { "BLENDER" }; -static const char* TokensForSearch[] = { "blender" }; - -// ------------------------------------------------------------------------------------------------ -// Returns whether the class can handle the format of the given file. -bool BlenderImporter::CanRead( const std::string& pFile, IOSystem* pIOHandler, bool checkSig) const -{ - const std::string& extension = GetExtension(pFile); - if (extension == "blend") { - return true; - } - - else if ((!extension.length() || checkSig) && pIOHandler) { - // note: this won't catch compressed files - return SearchFileHeaderForToken(pIOHandler,pFile, TokensForSearch,1); - } - return false; -} - -// ------------------------------------------------------------------------------------------------ -// List all extensions handled by this loader -void BlenderImporter::GetExtensionList(std::set<std::string>& app) -{ - app.insert("blend"); -} - -// ------------------------------------------------------------------------------------------------ -// Loader registry entry -const aiImporterDesc* BlenderImporter::GetInfo () const -{ - return &blenderDesc; -} - -// ------------------------------------------------------------------------------------------------ -// Setup configuration properties for the loader -void BlenderImporter::SetupProperties(const Importer* /*pImp*/) -{ - // nothing to be done for the moment -} - -struct free_it { - free_it(void* free) : free(free) {} - ~free_it() { - ::free(this->free); - } - - void* free; -}; - -// ------------------------------------------------------------------------------------------------ -// Imports the given file into the given scene structure. -void BlenderImporter::InternReadFile( const std::string& pFile, - aiScene* pScene, IOSystem* pIOHandler) -{ -#ifndef ASSIMP_BUILD_NO_COMPRESSED_BLEND - Bytef* dest = NULL; - free_it free_it_really(dest); -#endif - - - FileDatabase file; - std::shared_ptr<IOStream> stream(pIOHandler->Open(pFile,"rb")); - if (!stream) { - ThrowException("Could not open file for reading"); - } - - char magic[8] = {0}; - stream->Read(magic,7,1); - if (strcmp(magic, Tokens[0] )) { - // Check for presence of the gzip header. If yes, assume it is a - // compressed blend file and try uncompressing it, else fail. This is to - // avoid uncompressing random files which our loader might end up with. -#ifdef ASSIMP_BUILD_NO_COMPRESSED_BLEND - ThrowException("BLENDER magic bytes are missing, is this file compressed (Assimp was built without decompression support)?"); -#else - - if (magic[0] != 0x1f || static_cast<uint8_t>(magic[1]) != 0x8b) { - ThrowException("BLENDER magic bytes are missing, couldn't find GZIP header either"); - } - - LogDebug("Found no BLENDER magic word but a GZIP header, might be a compressed file"); - if (magic[2] != 8) { - ThrowException("Unsupported GZIP compression method"); - } - - // http://www.gzip.org/zlib/rfc-gzip.html#header-trailer - stream->Seek(0L,aiOrigin_SET); - std::shared_ptr<StreamReaderLE> reader = std::shared_ptr<StreamReaderLE>(new StreamReaderLE(stream)); - - // build a zlib stream - z_stream zstream; - zstream.opaque = Z_NULL; - zstream.zalloc = Z_NULL; - zstream.zfree = Z_NULL; - zstream.data_type = Z_BINARY; - - // http://hewgill.com/journal/entries/349-how-to-decompress-gzip-stream-with-zlib - inflateInit2(&zstream, 16+MAX_WBITS); - - zstream.next_in = reinterpret_cast<Bytef*>( reader->GetPtr() ); - zstream.avail_in = reader->GetRemainingSize(); - - size_t total = 0l; - - // and decompress the data .... do 1k chunks in the hope that we won't kill the stack -#define MYBLOCK 1024 - Bytef block[MYBLOCK]; - int ret; - do { - zstream.avail_out = MYBLOCK; - zstream.next_out = block; - ret = inflate(&zstream, Z_NO_FLUSH); - - if (ret != Z_STREAM_END && ret != Z_OK) { - ThrowException("Failure decompressing this file using gzip, seemingly it is NOT a compressed .BLEND file"); - } - const size_t have = MYBLOCK - zstream.avail_out; - total += have; - dest = reinterpret_cast<Bytef*>( realloc(dest,total) ); - memcpy(dest + total - have,block,have); - } - while (ret != Z_STREAM_END); - - // terminate zlib - inflateEnd(&zstream); - - // replace the input stream with a memory stream - stream.reset(new MemoryIOStream(reinterpret_cast<uint8_t*>(dest),total)); - - // .. and retry - stream->Read(magic,7,1); - if (strcmp(magic,"BLENDER")) { - ThrowException("Found no BLENDER magic word in decompressed GZIP file"); - } -#endif - } - - file.i64bit = (stream->Read(magic,1,1),magic[0]=='-'); - file.little = (stream->Read(magic,1,1),magic[0]=='v'); - - stream->Read(magic,3,1); - magic[3] = '\0'; - - LogInfo((format(),"Blender version is ",magic[0],".",magic+1, - " (64bit: ",file.i64bit?"true":"false", - ", little endian: ",file.little?"true":"false",")" - )); - - ParseBlendFile(file,stream); - - Scene scene; - ExtractScene(scene,file); - - ConvertBlendFile(pScene,scene,file); -} - -// ------------------------------------------------------------------------------------------------ -void BlenderImporter::ParseBlendFile(FileDatabase& out, std::shared_ptr<IOStream> stream) -{ - out.reader = std::shared_ptr<StreamReaderAny>(new StreamReaderAny(stream,out.little)); - - DNAParser dna_reader(out); - const DNA* dna = NULL; - - out.entries.reserve(128); { // even small BLEND files tend to consist of many file blocks - SectionParser parser(*out.reader.get(),out.i64bit); - - // first parse the file in search for the DNA and insert all other sections into the database - while ((parser.Next(),1)) { - const FileBlockHead& head = parser.GetCurrent(); - - if (head.id == "ENDB") { - break; // only valid end of the file - } - else if (head.id == "DNA1") { - dna_reader.Parse(); - dna = &dna_reader.GetDNA(); - continue; - } - - out.entries.push_back(head); - } - } - if (!dna) { - ThrowException("SDNA not found"); - } - - std::sort(out.entries.begin(),out.entries.end()); -} - -// ------------------------------------------------------------------------------------------------ -void BlenderImporter::ExtractScene(Scene& out, const FileDatabase& file) -{ - const FileBlockHead* block = NULL; - std::map<std::string,size_t>::const_iterator it = file.dna.indices.find("Scene"); - if (it == file.dna.indices.end()) { - ThrowException("There is no `Scene` structure record"); - } - - const Structure& ss = file.dna.structures[(*it).second]; - - // we need a scene somewhere to start with. - for(const FileBlockHead& bl :file.entries) { - - // Fix: using the DNA index is more reliable to locate scenes - //if (bl.id == "SC") { - - if (bl.dna_index == (*it).second) { - block = &bl; - break; - } - } - - if (!block) { - ThrowException("There is not a single `Scene` record to load"); - } - - file.reader->SetCurrentPos(block->start); - ss.Convert(out,file); - -#ifndef ASSIMP_BUILD_BLENDER_NO_STATS - DefaultLogger::get()->info((format(), - "(Stats) Fields read: " ,file.stats().fields_read, - ", pointers resolved: " ,file.stats().pointers_resolved, - ", cache hits: " ,file.stats().cache_hits, - ", cached objects: " ,file.stats().cached_objects - )); -#endif -} - -// ------------------------------------------------------------------------------------------------ -void BlenderImporter::ConvertBlendFile(aiScene* out, const Scene& in,const FileDatabase& file) -{ - ConversionData conv(file); - - // FIXME it must be possible to take the hierarchy directly from - // the file. This is terrible. Here, we're first looking for - // all objects which don't have parent objects at all - - std::deque<const Object*> no_parents; - for (std::shared_ptr<Base> cur = std::static_pointer_cast<Base> ( in.base.first ); cur; cur = cur->next) { - if (cur->object) { - if(!cur->object->parent) { - no_parents.push_back(cur->object.get()); - } else { - conv.objects.insert( cur->object.get() ); - } - } - } - for (std::shared_ptr<Base> cur = in.basact; cur; cur = cur->next) { - if (cur->object) { - if(cur->object->parent) { - conv.objects.insert(cur->object.get()); - } - } - } - - if (no_parents.empty()) { - ThrowException("Expected at least one object with no parent"); - } - - aiNode* root = out->mRootNode = new aiNode("<BlenderRoot>"); - - root->mNumChildren = static_cast<unsigned int>(no_parents.size()); - root->mChildren = new aiNode*[root->mNumChildren](); - for (unsigned int i = 0; i < root->mNumChildren; ++i) { - root->mChildren[i] = ConvertNode(in, no_parents[i], conv, aiMatrix4x4()); - root->mChildren[i]->mParent = root; - } - - BuildMaterials(conv); - - if (conv.meshes->size()) { - out->mMeshes = new aiMesh*[out->mNumMeshes = static_cast<unsigned int>( conv.meshes->size() )]; - std::copy(conv.meshes->begin(),conv.meshes->end(),out->mMeshes); - conv.meshes.dismiss(); - } - - if (conv.lights->size()) { - out->mLights = new aiLight*[out->mNumLights = static_cast<unsigned int>( conv.lights->size() )]; - std::copy(conv.lights->begin(),conv.lights->end(),out->mLights); - conv.lights.dismiss(); - } - - if (conv.cameras->size()) { - out->mCameras = new aiCamera*[out->mNumCameras = static_cast<unsigned int>( conv.cameras->size() )]; - std::copy(conv.cameras->begin(),conv.cameras->end(),out->mCameras); - conv.cameras.dismiss(); - } - - if (conv.materials->size()) { - out->mMaterials = new aiMaterial*[out->mNumMaterials = static_cast<unsigned int>( conv.materials->size() )]; - std::copy(conv.materials->begin(),conv.materials->end(),out->mMaterials); - conv.materials.dismiss(); - } - - if (conv.textures->size()) { - out->mTextures = new aiTexture*[out->mNumTextures = static_cast<unsigned int>( conv.textures->size() )]; - std::copy(conv.textures->begin(),conv.textures->end(),out->mTextures); - conv.textures.dismiss(); - } - - // acknowledge that the scene might come out incomplete - // by Assimp's definition of `complete`: blender scenes - // can consist of thousands of cameras or lights with - // not a single mesh between them. - if (!out->mNumMeshes) { - out->mFlags |= AI_SCENE_FLAGS_INCOMPLETE; - } -} - -// ------------------------------------------------------------------------------------------------ -void BlenderImporter::ResolveImage(aiMaterial* out, const Material* mat, const MTex* tex, const Image* img, ConversionData& conv_data) -{ - (void)mat; (void)tex; (void)conv_data; - aiString name; - - // check if the file contents are bundled with the BLEND file - if (img->packedfile) { - name.data[0] = '*'; - name.length = 1+ ASSIMP_itoa10(name.data+1,static_cast<unsigned int>(MAXLEN-1), static_cast<int32_t>(conv_data.textures->size())); - - conv_data.textures->push_back(new aiTexture()); - aiTexture* tex = conv_data.textures->back(); - - // usually 'img->name' will be the original file name of the embedded textures, - // so we can extract the file extension from it. - const size_t nlen = strlen( img->name ); - const char* s = img->name+nlen, *e = s; - while ( s >= img->name && *s != '.' ) { - --s; - } - - tex->achFormatHint[0] = s+1>e ? '\0' : ::tolower( s[1] ); - tex->achFormatHint[1] = s+2>e ? '\0' : ::tolower( s[2] ); - tex->achFormatHint[2] = s+3>e ? '\0' : ::tolower( s[3] ); - tex->achFormatHint[3] = '\0'; - - // tex->mHeight = 0; - tex->mWidth = img->packedfile->size; - uint8_t* ch = new uint8_t[tex->mWidth]; - - conv_data.db.reader->SetCurrentPos(static_cast<size_t>( img->packedfile->data->val)); - conv_data.db.reader->CopyAndAdvance(ch,tex->mWidth); - - tex->pcData = reinterpret_cast<aiTexel*>(ch); - - LogInfo("Reading embedded texture, original file was "+std::string(img->name)); - } else { - name = aiString( img->name ); - } - - aiTextureType texture_type = aiTextureType_UNKNOWN; - MTex::MapType map_type = tex->mapto; - - if (map_type & MTex::MapType_COL) - texture_type = aiTextureType_DIFFUSE; - else if (map_type & MTex::MapType_NORM) { - if (tex->tex->imaflag & Tex::ImageFlags_NORMALMAP) { - texture_type = aiTextureType_NORMALS; - } - else { - texture_type = aiTextureType_HEIGHT; - } - out->AddProperty(&tex->norfac,1,AI_MATKEY_BUMPSCALING); - } - else if (map_type & MTex::MapType_COLSPEC) - texture_type = aiTextureType_SPECULAR; - else if (map_type & MTex::MapType_COLMIR) - texture_type = aiTextureType_REFLECTION; - //else if (map_type & MTex::MapType_REF) - else if (map_type & MTex::MapType_SPEC) - texture_type = aiTextureType_SHININESS; - else if (map_type & MTex::MapType_EMIT) - texture_type = aiTextureType_EMISSIVE; - //else if (map_type & MTex::MapType_ALPHA) - //else if (map_type & MTex::MapType_HAR) - //else if (map_type & MTex::MapType_RAYMIRR) - //else if (map_type & MTex::MapType_TRANSLU) - else if (map_type & MTex::MapType_AMB) - texture_type = aiTextureType_AMBIENT; - else if (map_type & MTex::MapType_DISPLACE) - texture_type = aiTextureType_DISPLACEMENT; - //else if (map_type & MTex::MapType_WARP) - - out->AddProperty(&name,AI_MATKEY_TEXTURE(texture_type, - conv_data.next_texture[texture_type]++)); - -} - -// ------------------------------------------------------------------------------------------------ -void BlenderImporter::AddSentinelTexture(aiMaterial* out, const Material* mat, const MTex* tex, ConversionData& conv_data) -{ - (void)mat; (void)tex; (void)conv_data; - - aiString name; - name.length = ai_snprintf(name.data, MAXLEN, "Procedural,num=%i,type=%s",conv_data.sentinel_cnt++, - GetTextureTypeDisplayString(tex->tex->type) - ); - out->AddProperty(&name,AI_MATKEY_TEXTURE_DIFFUSE( - conv_data.next_texture[aiTextureType_DIFFUSE]++) - ); -} - -// ------------------------------------------------------------------------------------------------ -void BlenderImporter::ResolveTexture(aiMaterial* out, const Material* mat, const MTex* tex, ConversionData& conv_data) -{ - const Tex* rtex = tex->tex.get(); - if(!rtex || !rtex->type) { - return; - } - - // We can't support most of the texture types because they're mostly procedural. - // These are substituted by a dummy texture. - const char* dispnam = ""; - switch( rtex->type ) - { - // these are listed in blender's UI - case Tex::Type_CLOUDS : - case Tex::Type_WOOD : - case Tex::Type_MARBLE : - case Tex::Type_MAGIC : - case Tex::Type_BLEND : - case Tex::Type_STUCCI : - case Tex::Type_NOISE : - case Tex::Type_PLUGIN : - case Tex::Type_MUSGRAVE : - case Tex::Type_VORONOI : - case Tex::Type_DISTNOISE : - case Tex::Type_ENVMAP : - - // these do no appear in the UI, why? - case Tex::Type_POINTDENSITY : - case Tex::Type_VOXELDATA : - - LogWarn(std::string("Encountered a texture with an unsupported type: ")+dispnam); - AddSentinelTexture(out, mat, tex, conv_data); - break; - - case Tex::Type_IMAGE : - if (!rtex->ima) { - LogError("A texture claims to be an Image, but no image reference is given"); - break; - } - ResolveImage(out, mat, tex, rtex->ima.get(),conv_data); - break; - - default: - ai_assert(false); - }; -} - -// ------------------------------------------------------------------------------------------------ -void BlenderImporter::BuildDefaultMaterial(Blender::ConversionData& conv_data) -{ - // add a default material if necessary - unsigned int index = static_cast<unsigned int>( -1 ); - for( aiMesh* mesh : conv_data.meshes.get() ) { - if (mesh->mMaterialIndex == static_cast<unsigned int>( -1 )) { - - if (index == static_cast<unsigned int>( -1 )) { - // Setup a default material. - std::shared_ptr<Material> p(new Material()); - ai_assert(::strlen(AI_DEFAULT_MATERIAL_NAME) < sizeof(p->id.name)-2); - strcpy( p->id.name+2, AI_DEFAULT_MATERIAL_NAME ); - - // Note: MSVC11 does not zero-initialize Material here, although it should. - // Thus all relevant fields should be explicitly initialized. We cannot add - // a default constructor to Material since the DNA codegen does not support - // parsing it. - p->r = p->g = p->b = 0.6f; - p->specr = p->specg = p->specb = 0.6f; - p->ambr = p->ambg = p->ambb = 0.0f; - p->mirr = p->mirg = p->mirb = 0.0f; - p->emit = 0.f; - p->alpha = 0.f; - p->har = 0; - - index = static_cast<unsigned int>( conv_data.materials_raw.size() ); - conv_data.materials_raw.push_back(p); - LogInfo("Adding default material"); - } - mesh->mMaterialIndex = index; - } - } -} - -void BlenderImporter::AddBlendParams(aiMaterial* result, const Material* source) -{ - aiColor3D diffuseColor(source->r, source->g, source->b); - result->AddProperty(&diffuseColor, 1, "$mat.blend.diffuse.color", 0, 0); - - float diffuseIntensity = source->ref; - result->AddProperty(&diffuseIntensity, 1, "$mat.blend.diffuse.intensity", 0, 0); - - int diffuseShader = source->diff_shader; - result->AddProperty(&diffuseShader, 1, "$mat.blend.diffuse.shader", 0, 0); - - int diffuseRamp = 0; - result->AddProperty(&diffuseRamp, 1, "$mat.blend.diffuse.ramp", 0, 0); - - - aiColor3D specularColor(source->specr, source->specg, source->specb); - result->AddProperty(&specularColor, 1, "$mat.blend.specular.color", 0, 0); - - float specularIntensity = source->spec; - result->AddProperty(&specularIntensity, 1, "$mat.blend.specular.intensity", 0, 0); - - int specularShader = source->spec_shader; - result->AddProperty(&specularShader, 1, "$mat.blend.specular.shader", 0, 0); - - int specularRamp = 0; - result->AddProperty(&specularRamp, 1, "$mat.blend.specular.ramp", 0, 0); - - int specularHardness = source->har; - result->AddProperty(&specularHardness, 1, "$mat.blend.specular.hardness", 0, 0); - - - int transparencyUse = source->mode & MA_TRANSPARENCY ? 1 : 0; - result->AddProperty(&transparencyUse, 1, "$mat.blend.transparency.use", 0, 0); - - int transparencyMethod = source->mode & MA_RAYTRANSP ? 2 : (source->mode & MA_ZTRANSP ? 1 : 0); - result->AddProperty(&transparencyMethod, 1, "$mat.blend.transparency.method", 0, 0); - - float transparencyAlpha = source->alpha; - result->AddProperty(&transparencyAlpha, 1, "$mat.blend.transparency.alpha", 0, 0); - - float transparencySpecular = source->spectra; - result->AddProperty(&transparencySpecular, 1, "$mat.blend.transparency.specular", 0, 0); - - float transparencyFresnel = source->fresnel_tra; - result->AddProperty(&transparencyFresnel, 1, "$mat.blend.transparency.fresnel", 0, 0); - - float transparencyBlend = source->fresnel_tra_i; - result->AddProperty(&transparencyBlend, 1, "$mat.blend.transparency.blend", 0, 0); - - float transparencyIor = source->ang; - result->AddProperty(&transparencyIor, 1, "$mat.blend.transparency.ior", 0, 0); - - float transparencyFilter = source->filter; - result->AddProperty(&transparencyFilter, 1, "$mat.blend.transparency.filter", 0, 0); - - float transparencyFalloff = source->tx_falloff; - result->AddProperty(&transparencyFalloff, 1, "$mat.blend.transparency.falloff", 0, 0); - - float transparencyLimit = source->tx_limit; - result->AddProperty(&transparencyLimit, 1, "$mat.blend.transparency.limit", 0, 0); - - int transparencyDepth = source->ray_depth_tra; - result->AddProperty(&transparencyDepth, 1, "$mat.blend.transparency.depth", 0, 0); - - float transparencyGlossAmount = source->gloss_tra; - result->AddProperty(&transparencyGlossAmount, 1, "$mat.blend.transparency.glossAmount", 0, 0); - - float transparencyGlossThreshold = source->adapt_thresh_tra; - result->AddProperty(&transparencyGlossThreshold, 1, "$mat.blend.transparency.glossThreshold", 0, 0); - - int transparencyGlossSamples = source->samp_gloss_tra; - result->AddProperty(&transparencyGlossSamples, 1, "$mat.blend.transparency.glossSamples", 0, 0); - - - int mirrorUse = source->mode & MA_RAYMIRROR ? 1 : 0; - result->AddProperty(&mirrorUse, 1, "$mat.blend.mirror.use", 0, 0); - - float mirrorReflectivity = source->ray_mirror; - result->AddProperty(&mirrorReflectivity, 1, "$mat.blend.mirror.reflectivity", 0, 0); - - aiColor3D mirrorColor(source->mirr, source->mirg, source->mirb); - result->AddProperty(&mirrorColor, 1, "$mat.blend.mirror.color", 0, 0); - - float mirrorFresnel = source->fresnel_mir; - result->AddProperty(&mirrorFresnel, 1, "$mat.blend.mirror.fresnel", 0, 0); - - float mirrorBlend = source->fresnel_mir_i; - result->AddProperty(&mirrorBlend, 1, "$mat.blend.mirror.blend", 0, 0); - - int mirrorDepth = source->ray_depth; - result->AddProperty(&mirrorDepth, 1, "$mat.blend.mirror.depth", 0, 0); - - float mirrorMaxDist = source->dist_mir; - result->AddProperty(&mirrorMaxDist, 1, "$mat.blend.mirror.maxDist", 0, 0); - - int mirrorFadeTo = source->fadeto_mir; - result->AddProperty(&mirrorFadeTo, 1, "$mat.blend.mirror.fadeTo", 0, 0); - - float mirrorGlossAmount = source->gloss_mir; - result->AddProperty(&mirrorGlossAmount, 1, "$mat.blend.mirror.glossAmount", 0, 0); - - float mirrorGlossThreshold = source->adapt_thresh_mir; - result->AddProperty(&mirrorGlossThreshold, 1, "$mat.blend.mirror.glossThreshold", 0, 0); - - int mirrorGlossSamples = source->samp_gloss_mir; - result->AddProperty(&mirrorGlossSamples, 1, "$mat.blend.mirror.glossSamples", 0, 0); - - float mirrorGlossAnisotropic = source->aniso_gloss_mir; - result->AddProperty(&mirrorGlossAnisotropic, 1, "$mat.blend.mirror.glossAnisotropic", 0, 0); -} - -void BlenderImporter::BuildMaterials(ConversionData& conv_data) -{ - conv_data.materials->reserve(conv_data.materials_raw.size()); - - BuildDefaultMaterial(conv_data); - - for(std::shared_ptr<Material> mat : conv_data.materials_raw) { - - // reset per material global counters - for (size_t i = 0; i < sizeof(conv_data.next_texture)/sizeof(conv_data.next_texture[0]);++i) { - conv_data.next_texture[i] = 0 ; - } - - aiMaterial* mout = new aiMaterial(); - conv_data.materials->push_back(mout); - // For any new material field handled here, the default material above must be updated with an appropriate default value. - - // set material name - aiString name = aiString(mat->id.name+2); // skip over the name prefix 'MA' - mout->AddProperty(&name,AI_MATKEY_NAME); - - // basic material colors - aiColor3D col(mat->r,mat->g,mat->b); - if (mat->r || mat->g || mat->b ) { - - // Usually, zero diffuse color means no diffuse color at all in the equation. - // So we omit this member to express this intent. - mout->AddProperty(&col,1,AI_MATKEY_COLOR_DIFFUSE); - - if (mat->emit) { - aiColor3D emit_col(mat->emit * mat->r, mat->emit * mat->g, mat->emit * mat->b) ; - mout->AddProperty(&emit_col, 1, AI_MATKEY_COLOR_EMISSIVE) ; - } - } - - col = aiColor3D(mat->specr,mat->specg,mat->specb); - mout->AddProperty(&col,1,AI_MATKEY_COLOR_SPECULAR); - - // is hardness/shininess set? - if( mat->har ) { - const float har = mat->har; - mout->AddProperty(&har,1,AI_MATKEY_SHININESS); - } - - col = aiColor3D(mat->ambr,mat->ambg,mat->ambb); - mout->AddProperty(&col,1,AI_MATKEY_COLOR_AMBIENT); - - // is mirror enabled? - if( mat->mode & MA_RAYMIRROR ) { - const float ray_mirror = mat->ray_mirror; - mout->AddProperty(&ray_mirror,1,AI_MATKEY_REFLECTIVITY); - } - - col = aiColor3D(mat->mirr,mat->mirg,mat->mirb); - mout->AddProperty(&col,1,AI_MATKEY_COLOR_REFLECTIVE); - - for(size_t i = 0; i < sizeof(mat->mtex) / sizeof(mat->mtex[0]); ++i) { - if (!mat->mtex[i]) { - continue; - } - - ResolveTexture(mout,mat.get(),mat->mtex[i].get(),conv_data); - } - - AddBlendParams(mout, mat.get()); - } -} - -// ------------------------------------------------------------------------------------------------ -void BlenderImporter::CheckActualType(const ElemBase* dt, const char* check) -{ - ai_assert(dt); - if (strcmp(dt->dna_type,check)) { - ThrowException((format(), - "Expected object at ",std::hex,dt," to be of type `",check, - "`, but it claims to be a `",dt->dna_type,"`instead" - )); - } -} - -// ------------------------------------------------------------------------------------------------ -void BlenderImporter::NotSupportedObjectType(const Object* obj, const char* type) -{ - LogWarn((format(), "Object `",obj->id.name,"` - type is unsupported: `",type, "`, skipping" )); -} - -// ------------------------------------------------------------------------------------------------ -void BlenderImporter::ConvertMesh(const Scene& /*in*/, const Object* /*obj*/, const Mesh* mesh, - ConversionData& conv_data, TempArray<std::vector,aiMesh>& temp - ) -{ - // TODO: Resolve various problems with BMesh triangulation before re-enabling. - // See issues #400, #373, #318 #315 and #132. -#if defined(TODO_FIX_BMESH_CONVERSION) - BlenderBMeshConverter BMeshConverter( mesh ); - if ( BMeshConverter.ContainsBMesh( ) ) - { - mesh = BMeshConverter.TriangulateBMesh( ); - } -#endif - - typedef std::pair<const int,size_t> MyPair; - if ((!mesh->totface && !mesh->totloop) || !mesh->totvert) { - return; - } - - // some sanity checks - if (static_cast<size_t> ( mesh->totface ) > mesh->mface.size() ){ - ThrowException("Number of faces is larger than the corresponding array"); - } - - if (static_cast<size_t> ( mesh->totvert ) > mesh->mvert.size()) { - ThrowException("Number of vertices is larger than the corresponding array"); - } - - if (static_cast<size_t> ( mesh->totloop ) > mesh->mloop.size()) { - ThrowException("Number of vertices is larger than the corresponding array"); - } - - // collect per-submesh numbers - std::map<int,size_t> per_mat; - std::map<int,size_t> per_mat_verts; - for (int i = 0; i < mesh->totface; ++i) { - - const MFace& mf = mesh->mface[i]; - per_mat[ mf.mat_nr ]++; - per_mat_verts[ mf.mat_nr ] += mf.v4?4:3; - } - - for (int i = 0; i < mesh->totpoly; ++i) { - const MPoly& mp = mesh->mpoly[i]; - per_mat[ mp.mat_nr ]++; - per_mat_verts[ mp.mat_nr ] += mp.totloop; - } - - // ... and allocate the corresponding meshes - const size_t old = temp->size(); - temp->reserve(temp->size() + per_mat.size()); - - std::map<size_t,size_t> mat_num_to_mesh_idx; - for(MyPair& it : per_mat) { - - mat_num_to_mesh_idx[it.first] = temp->size(); - temp->push_back(new aiMesh()); - - aiMesh* out = temp->back(); - out->mVertices = new aiVector3D[per_mat_verts[it.first]]; - out->mNormals = new aiVector3D[per_mat_verts[it.first]]; - - //out->mNumFaces = 0 - //out->mNumVertices = 0 - out->mFaces = new aiFace[it.second](); - - // all sub-meshes created from this mesh are named equally. this allows - // curious users to recover the original adjacency. - out->mName = aiString(mesh->id.name+2); - // skip over the name prefix 'ME' - - // resolve the material reference and add this material to the set of - // output materials. The (temporary) material index is the index - // of the material entry within the list of resolved materials. - if (mesh->mat) { - - if (static_cast<size_t> ( it.first ) >= mesh->mat.size() ) { - ThrowException("Material index is out of range"); - } - - std::shared_ptr<Material> mat = mesh->mat[it.first]; - const std::deque< std::shared_ptr<Material> >::iterator has = std::find( - conv_data.materials_raw.begin(), - conv_data.materials_raw.end(),mat - ); - - if (has != conv_data.materials_raw.end()) { - out->mMaterialIndex = static_cast<unsigned int>( std::distance(conv_data.materials_raw.begin(),has)); - } - else { - out->mMaterialIndex = static_cast<unsigned int>( conv_data.materials_raw.size() ); - conv_data.materials_raw.push_back(mat); - } - } - else out->mMaterialIndex = static_cast<unsigned int>( -1 ); - } - - for (int i = 0; i < mesh->totface; ++i) { - - const MFace& mf = mesh->mface[i]; - - aiMesh* const out = temp[ mat_num_to_mesh_idx[ mf.mat_nr ] ]; - aiFace& f = out->mFaces[out->mNumFaces++]; - - f.mIndices = new unsigned int[ f.mNumIndices = mf.v4?4:3 ]; - aiVector3D* vo = out->mVertices + out->mNumVertices; - aiVector3D* vn = out->mNormals + out->mNumVertices; - - // XXX we can't fold this easily, because we are restricted - // to the member names from the BLEND file (v1,v2,v3,v4) - // which are assigned by the genblenddna.py script and - // cannot be changed without breaking the entire - // import process. - - if (mf.v1 >= mesh->totvert) { - ThrowException("Vertex index v1 out of range"); - } - const MVert* v = &mesh->mvert[mf.v1]; - vo->x = v->co[0]; - vo->y = v->co[1]; - vo->z = v->co[2]; - vn->x = v->no[0]; - vn->y = v->no[1]; - vn->z = v->no[2]; - f.mIndices[0] = out->mNumVertices++; - ++vo; - ++vn; - - // if (f.mNumIndices >= 2) { - if (mf.v2 >= mesh->totvert) { - ThrowException("Vertex index v2 out of range"); - } - v = &mesh->mvert[mf.v2]; - vo->x = v->co[0]; - vo->y = v->co[1]; - vo->z = v->co[2]; - vn->x = v->no[0]; - vn->y = v->no[1]; - vn->z = v->no[2]; - f.mIndices[1] = out->mNumVertices++; - ++vo; - ++vn; - - if (mf.v3 >= mesh->totvert) { - ThrowException("Vertex index v3 out of range"); - } - // if (f.mNumIndices >= 3) { - v = &mesh->mvert[mf.v3]; - vo->x = v->co[0]; - vo->y = v->co[1]; - vo->z = v->co[2]; - vn->x = v->no[0]; - vn->y = v->no[1]; - vn->z = v->no[2]; - f.mIndices[2] = out->mNumVertices++; - ++vo; - ++vn; - - if (mf.v4 >= mesh->totvert) { - ThrowException("Vertex index v4 out of range"); - } - // if (f.mNumIndices >= 4) { - if (mf.v4) { - v = &mesh->mvert[mf.v4]; - vo->x = v->co[0]; - vo->y = v->co[1]; - vo->z = v->co[2]; - vn->x = v->no[0]; - vn->y = v->no[1]; - vn->z = v->no[2]; - f.mIndices[3] = out->mNumVertices++; - ++vo; - ++vn; - - out->mPrimitiveTypes |= aiPrimitiveType_POLYGON; - } - else out->mPrimitiveTypes |= aiPrimitiveType_TRIANGLE; - - // } - // } - // } - } - - for (int i = 0; i < mesh->totpoly; ++i) { - - const MPoly& mf = mesh->mpoly[i]; - - aiMesh* const out = temp[ mat_num_to_mesh_idx[ mf.mat_nr ] ]; - aiFace& f = out->mFaces[out->mNumFaces++]; - - f.mIndices = new unsigned int[ f.mNumIndices = mf.totloop ]; - aiVector3D* vo = out->mVertices + out->mNumVertices; - aiVector3D* vn = out->mNormals + out->mNumVertices; - - // XXX we can't fold this easily, because we are restricted - // to the member names from the BLEND file (v1,v2,v3,v4) - // which are assigned by the genblenddna.py script and - // cannot be changed without breaking the entire - // import process. - for (int j = 0;j < mf.totloop; ++j) - { - const MLoop& loop = mesh->mloop[mf.loopstart + j]; - - if (loop.v >= mesh->totvert) { - ThrowException("Vertex index out of range"); - } - - const MVert& v = mesh->mvert[loop.v]; - - vo->x = v.co[0]; - vo->y = v.co[1]; - vo->z = v.co[2]; - vn->x = v.no[0]; - vn->y = v.no[1]; - vn->z = v.no[2]; - f.mIndices[j] = out->mNumVertices++; - - ++vo; - ++vn; - - } - if (mf.totloop == 3) - { - out->mPrimitiveTypes |= aiPrimitiveType_TRIANGLE; - } - else - { - out->mPrimitiveTypes |= aiPrimitiveType_POLYGON; - } - } - - // collect texture coordinates, they're stored in a separate per-face buffer - if (mesh->mtface || mesh->mloopuv) { - if (mesh->totface > static_cast<int> ( mesh->mtface.size())) { - ThrowException("Number of UV faces is larger than the corresponding UV face array (#1)"); - } - for (std::vector<aiMesh*>::iterator it = temp->begin()+old; it != temp->end(); ++it) { - ai_assert((*it)->mNumVertices && (*it)->mNumFaces); - - (*it)->mTextureCoords[0] = new aiVector3D[(*it)->mNumVertices]; - (*it)->mNumFaces = (*it)->mNumVertices = 0; - } - - for (int i = 0; i < mesh->totface; ++i) { - const MTFace* v = &mesh->mtface[i]; - - aiMesh* const out = temp[ mat_num_to_mesh_idx[ mesh->mface[i].mat_nr ] ]; - const aiFace& f = out->mFaces[out->mNumFaces++]; - - aiVector3D* vo = &out->mTextureCoords[0][out->mNumVertices]; - for (unsigned int i = 0; i < f.mNumIndices; ++i,++vo,++out->mNumVertices) { - vo->x = v->uv[i][0]; - vo->y = v->uv[i][1]; - } - } - - for (int i = 0; i < mesh->totpoly; ++i) { - const MPoly& v = mesh->mpoly[i]; - aiMesh* const out = temp[ mat_num_to_mesh_idx[ v.mat_nr ] ]; - const aiFace& f = out->mFaces[out->mNumFaces++]; - - aiVector3D* vo = &out->mTextureCoords[0][out->mNumVertices]; - for (unsigned int j = 0; j < f.mNumIndices; ++j,++vo,++out->mNumVertices) { - const MLoopUV& uv = mesh->mloopuv[v.loopstart + j]; - vo->x = uv.uv[0]; - vo->y = uv.uv[1]; - } - - } - } - - // collect texture coordinates, old-style (marked as deprecated in current blender sources) - if (mesh->tface) { - if (mesh->totface > static_cast<int> ( mesh->tface.size())) { - ThrowException("Number of faces is larger than the corresponding UV face array (#2)"); - } - for (std::vector<aiMesh*>::iterator it = temp->begin()+old; it != temp->end(); ++it) { - ai_assert((*it)->mNumVertices && (*it)->mNumFaces); - - (*it)->mTextureCoords[0] = new aiVector3D[(*it)->mNumVertices]; - (*it)->mNumFaces = (*it)->mNumVertices = 0; - } - - for (int i = 0; i < mesh->totface; ++i) { - const TFace* v = &mesh->tface[i]; - - aiMesh* const out = temp[ mat_num_to_mesh_idx[ mesh->mface[i].mat_nr ] ]; - const aiFace& f = out->mFaces[out->mNumFaces++]; - - aiVector3D* vo = &out->mTextureCoords[0][out->mNumVertices]; - for (unsigned int i = 0; i < f.mNumIndices; ++i,++vo,++out->mNumVertices) { - vo->x = v->uv[i][0]; - vo->y = v->uv[i][1]; - } - } - } - - // collect vertex colors, stored separately as well - if (mesh->mcol || mesh->mloopcol) { - if (mesh->totface > static_cast<int> ( (mesh->mcol.size()/4)) ) { - ThrowException("Number of faces is larger than the corresponding color face array"); - } - for (std::vector<aiMesh*>::iterator it = temp->begin()+old; it != temp->end(); ++it) { - ai_assert((*it)->mNumVertices && (*it)->mNumFaces); - - (*it)->mColors[0] = new aiColor4D[(*it)->mNumVertices]; - (*it)->mNumFaces = (*it)->mNumVertices = 0; - } - - for (int i = 0; i < mesh->totface; ++i) { - - aiMesh* const out = temp[ mat_num_to_mesh_idx[ mesh->mface[i].mat_nr ] ]; - const aiFace& f = out->mFaces[out->mNumFaces++]; - - aiColor4D* vo = &out->mColors[0][out->mNumVertices]; - for (unsigned int n = 0; n < f.mNumIndices; ++n, ++vo,++out->mNumVertices) { - const MCol* col = &mesh->mcol[(i<<2)+n]; - - vo->r = col->r; - vo->g = col->g; - vo->b = col->b; - vo->a = col->a; - } - for (unsigned int n = f.mNumIndices; n < 4; ++n); - } - - for (int i = 0; i < mesh->totpoly; ++i) { - const MPoly& v = mesh->mpoly[i]; - aiMesh* const out = temp[ mat_num_to_mesh_idx[ v.mat_nr ] ]; - const aiFace& f = out->mFaces[out->mNumFaces++]; - - aiColor4D* vo = &out->mColors[0][out->mNumVertices]; - const ai_real scaleZeroToOne = 1.f/255.f; - for (unsigned int j = 0; j < f.mNumIndices; ++j,++vo,++out->mNumVertices) { - const MLoopCol& col = mesh->mloopcol[v.loopstart + j]; - vo->r = ai_real(col.r) * scaleZeroToOne; - vo->g = ai_real(col.g) * scaleZeroToOne; - vo->b = ai_real(col.b) * scaleZeroToOne; - vo->a = ai_real(col.a) * scaleZeroToOne; - } - - } - - } - - return; -} - -// ------------------------------------------------------------------------------------------------ -aiCamera* BlenderImporter::ConvertCamera(const Scene& /*in*/, const Object* obj, const Camera* cam, ConversionData& /*conv_data*/) -{ - std::unique_ptr<aiCamera> out(new aiCamera()); - out->mName = obj->id.name+2; - out->mPosition = aiVector3D(0.f, 0.f, 0.f); - out->mUp = aiVector3D(0.f, 1.f, 0.f); - out->mLookAt = aiVector3D(0.f, 0.f, -1.f); - if (cam->sensor_x && cam->lens) { - out->mHorizontalFOV = std::atan2(cam->sensor_x, 2.f * cam->lens); - } - out->mClipPlaneNear = cam->clipsta; - out->mClipPlaneFar = cam->clipend; - - return out.release(); -} - -// ------------------------------------------------------------------------------------------------ -aiLight* BlenderImporter::ConvertLight(const Scene& /*in*/, const Object* obj, const Lamp* lamp, ConversionData& /*conv_data*/) -{ - std::unique_ptr<aiLight> out(new aiLight()); - out->mName = obj->id.name+2; - - switch (lamp->type) - { - case Lamp::Type_Local: - out->mType = aiLightSource_POINT; - break; - case Lamp::Type_Sun: - out->mType = aiLightSource_DIRECTIONAL; - - // blender orients directional lights as facing toward -z - out->mDirection = aiVector3D(0.f, 0.f, -1.f); - out->mUp = aiVector3D(0.f, 1.f, 0.f); - break; - - case Lamp::Type_Area: - out->mType = aiLightSource_AREA; - - if (lamp->area_shape == 0) { - out->mSize = aiVector2D(lamp->area_size, lamp->area_size); - } - else { - out->mSize = aiVector2D(lamp->area_size, lamp->area_sizey); - } - - // blender orients directional lights as facing toward -z - out->mDirection = aiVector3D(0.f, 0.f, -1.f); - out->mUp = aiVector3D(0.f, 1.f, 0.f); - break; - - default: - break; - } - - out->mColorAmbient = aiColor3D(lamp->r, lamp->g, lamp->b) * lamp->energy; - out->mColorSpecular = aiColor3D(lamp->r, lamp->g, lamp->b) * lamp->energy; - out->mColorDiffuse = aiColor3D(lamp->r, lamp->g, lamp->b) * lamp->energy; - return out.release(); -} - -// ------------------------------------------------------------------------------------------------ -aiNode* BlenderImporter::ConvertNode(const Scene& in, const Object* obj, ConversionData& conv_data, const aiMatrix4x4& parentTransform) -{ - std::deque<const Object*> children; - for(ObjectSet::iterator it = conv_data.objects.begin(); it != conv_data.objects.end() ;) { - const Object* object = *it; - if (object->parent == obj) { - children.push_back(object); - - conv_data.objects.erase(it++); - continue; - } - ++it; - } - - std::unique_ptr<aiNode> node(new aiNode(obj->id.name+2)); // skip over the name prefix 'OB' - if (obj->data) { - switch (obj->type) - { - case Object :: Type_EMPTY: - break; // do nothing - - - // supported object types - case Object :: Type_MESH: { - const size_t old = conv_data.meshes->size(); - - CheckActualType(obj->data.get(),"Mesh"); - ConvertMesh(in,obj,static_cast<const Mesh*>(obj->data.get()),conv_data,conv_data.meshes); - - if (conv_data.meshes->size() > old) { - node->mMeshes = new unsigned int[node->mNumMeshes = static_cast<unsigned int>(conv_data.meshes->size()-old)]; - for (unsigned int i = 0; i < node->mNumMeshes; ++i) { - node->mMeshes[i] = static_cast<unsigned int>(i + old); - } - }} - break; - case Object :: Type_LAMP: { - CheckActualType(obj->data.get(),"Lamp"); - aiLight* mesh = ConvertLight(in,obj,static_cast<const Lamp*>( - obj->data.get()),conv_data); - - if (mesh) { - conv_data.lights->push_back(mesh); - }} - break; - case Object :: Type_CAMERA: { - CheckActualType(obj->data.get(),"Camera"); - aiCamera* mesh = ConvertCamera(in,obj,static_cast<const Camera*>( - obj->data.get()),conv_data); - - if (mesh) { - conv_data.cameras->push_back(mesh); - }} - break; - - - // unsupported object types / log, but do not break - case Object :: Type_CURVE: - NotSupportedObjectType(obj,"Curve"); - break; - case Object :: Type_SURF: - NotSupportedObjectType(obj,"Surface"); - break; - case Object :: Type_FONT: - NotSupportedObjectType(obj,"Font"); - break; - case Object :: Type_MBALL: - NotSupportedObjectType(obj,"MetaBall"); - break; - case Object :: Type_WAVE: - NotSupportedObjectType(obj,"Wave"); - break; - case Object :: Type_LATTICE: - NotSupportedObjectType(obj,"Lattice"); - break; - - // invalid or unknown type - default: - break; - } - } - - for(unsigned int x = 0; x < 4; ++x) { - for(unsigned int y = 0; y < 4; ++y) { - node->mTransformation[y][x] = obj->obmat[x][y]; - } - } - - aiMatrix4x4 m = parentTransform; - m = m.Inverse(); - - node->mTransformation = m*node->mTransformation; - - if (children.size()) { - node->mNumChildren = static_cast<unsigned int>(children.size()); - aiNode** nd = node->mChildren = new aiNode*[node->mNumChildren](); - for (const Object* nobj :children) { - *nd = ConvertNode(in,nobj,conv_data,node->mTransformation * parentTransform); - (*nd++)->mParent = node.get(); - } - } - - // apply modifiers - modifier_cache->ApplyModifiers(*node,conv_data,in,*obj); - - return node.release(); -} - -#endif // ASSIMP_BUILD_NO_BLEND_IMPORTER |