| /* |
| 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 IFCMaterial.cpp |
| * @brief Implementation of conversion routines to convert IFC materials to aiMaterial |
| */ |
| |
| #ifndef ASSIMP_BUILD_NO_IFC_IMPORTER |
| |
| #include "IFCUtil.h" |
| #include <limits> |
| #include <assimp/material.h> |
| |
| namespace Assimp { |
| namespace IFC { |
| |
| // ------------------------------------------------------------------------------------------------ |
| static int ConvertShadingMode(const std::string& name) { |
| if (name == "BLINN") { |
| return aiShadingMode_Blinn; |
| } |
| else if (name == "FLAT" || name == "NOTDEFINED") { |
| return aiShadingMode_NoShading; |
| } |
| else if (name == "PHONG") { |
| return aiShadingMode_Phong; |
| } |
| IFCImporter::LogWarn("shading mode "+name+" not recognized by Assimp, using Phong instead"); |
| return aiShadingMode_Phong; |
| } |
| |
| // ------------------------------------------------------------------------------------------------ |
| static void FillMaterial(aiMaterial* mat,const IFC::IfcSurfaceStyle* surf,ConversionData& conv) { |
| aiString name; |
| name.Set((surf->Name? surf->Name.Get() : "IfcSurfaceStyle_Unnamed")); |
| mat->AddProperty(&name,AI_MATKEY_NAME); |
| |
| // now see which kinds of surface information are present |
| for(std::shared_ptr< const IFC::IfcSurfaceStyleElementSelect > sel2 : surf->Styles) { |
| if (const IFC::IfcSurfaceStyleShading* shade = sel2->ResolveSelectPtr<IFC::IfcSurfaceStyleShading>(conv.db)) { |
| aiColor4D col_base,col; |
| |
| ConvertColor(col_base, shade->SurfaceColour); |
| mat->AddProperty(&col_base,1, AI_MATKEY_COLOR_DIFFUSE); |
| |
| if (const IFC::IfcSurfaceStyleRendering* ren = shade->ToPtr<IFC::IfcSurfaceStyleRendering>()) { |
| |
| if (ren->Transparency) { |
| const float t = 1.f-static_cast<float>(ren->Transparency.Get()); |
| mat->AddProperty(&t,1, AI_MATKEY_OPACITY); |
| } |
| |
| if (ren->DiffuseColour) { |
| ConvertColor(col, *ren->DiffuseColour.Get(),conv,&col_base); |
| mat->AddProperty(&col,1, AI_MATKEY_COLOR_DIFFUSE); |
| } |
| |
| if (ren->SpecularColour) { |
| ConvertColor(col, *ren->SpecularColour.Get(),conv,&col_base); |
| mat->AddProperty(&col,1, AI_MATKEY_COLOR_SPECULAR); |
| } |
| |
| if (ren->TransmissionColour) { |
| ConvertColor(col, *ren->TransmissionColour.Get(),conv,&col_base); |
| mat->AddProperty(&col,1, AI_MATKEY_COLOR_TRANSPARENT); |
| } |
| |
| if (ren->ReflectionColour) { |
| ConvertColor(col, *ren->ReflectionColour.Get(),conv,&col_base); |
| mat->AddProperty(&col,1, AI_MATKEY_COLOR_REFLECTIVE); |
| } |
| |
| const int shading = (ren->SpecularHighlight && ren->SpecularColour)?ConvertShadingMode(ren->ReflectanceMethod):static_cast<int>(aiShadingMode_Gouraud); |
| mat->AddProperty(&shading,1, AI_MATKEY_SHADING_MODEL); |
| |
| if (ren->SpecularHighlight) { |
| if(const EXPRESS::REAL* rt = ren->SpecularHighlight.Get()->ToPtr<EXPRESS::REAL>()) { |
| // at this point we don't distinguish between the two distinct ways of |
| // specifying highlight intensities. leave this to the user. |
| const float e = static_cast<float>(*rt); |
| mat->AddProperty(&e,1,AI_MATKEY_SHININESS); |
| } |
| else { |
| IFCImporter::LogWarn("unexpected type error, SpecularHighlight should be a REAL"); |
| } |
| } |
| } |
| } /* |
| else if (const IFC::IfcSurfaceStyleWithTextures* tex = sel2->ResolveSelectPtr<IFC::IfcSurfaceStyleWithTextures>(conv.db)) { |
| // XXX |
| } */ |
| } |
| |
| } |
| |
| // ------------------------------------------------------------------------------------------------ |
| unsigned int ProcessMaterials(uint64_t id, unsigned int prevMatId, ConversionData& conv, bool forceDefaultMat) { |
| STEP::DB::RefMapRange range = conv.db.GetRefs().equal_range(id); |
| for(;range.first != range.second; ++range.first) { |
| if(const IFC::IfcStyledItem* const styled = conv.db.GetObject((*range.first).second)->ToPtr<IFC::IfcStyledItem>()) { |
| for(const IFC::IfcPresentationStyleAssignment& as : styled->Styles) { |
| for(std::shared_ptr<const IFC::IfcPresentationStyleSelect> sel : as.Styles) { |
| |
| if( const IFC::IfcSurfaceStyle* const surf = sel->ResolveSelectPtr<IFC::IfcSurfaceStyle>(conv.db) ) { |
| // try to satisfy from cache |
| ConversionData::MaterialCache::iterator mit = conv.cached_materials.find(surf); |
| if( mit != conv.cached_materials.end() ) |
| return mit->second; |
| |
| // not found, create new material |
| const std::string side = static_cast<std::string>(surf->Side); |
| if( side != "BOTH" ) { |
| IFCImporter::LogWarn("ignoring surface side marker on IFC::IfcSurfaceStyle: " + side); |
| } |
| |
| std::unique_ptr<aiMaterial> mat(new aiMaterial()); |
| |
| FillMaterial(mat.get(), surf, conv); |
| |
| conv.materials.push_back(mat.release()); |
| unsigned int matindex = static_cast<unsigned int>(conv.materials.size() - 1); |
| conv.cached_materials[surf] = matindex; |
| return matindex; |
| } |
| } |
| } |
| } |
| } |
| |
| // no local material defined. If there's global one, use that instead |
| if ( prevMatId != std::numeric_limits<uint32_t>::max() ) { |
| return prevMatId; |
| } |
| |
| // we're still here - create an default material if required, or simply fail otherwise |
| if ( !forceDefaultMat ) { |
| return std::numeric_limits<uint32_t>::max(); |
| } |
| |
| aiString name; |
| name.Set("<IFCDefault>"); |
| // ConvertColorToString( color, name); |
| |
| // look if there's already a default material with this base color |
| for( size_t a = 0; a < conv.materials.size(); ++a ) { |
| aiString mname; |
| conv.materials[a]->Get(AI_MATKEY_NAME, mname); |
| if ( name == mname ) { |
| return ( unsigned int )a; |
| } |
| } |
| |
| // we're here, yet - no default material with suitable color available. Generate one |
| std::unique_ptr<aiMaterial> mat(new aiMaterial()); |
| mat->AddProperty(&name,AI_MATKEY_NAME); |
| |
| const aiColor4D col = aiColor4D( 0.6f, 0.6f, 0.6f, 1.0f); // aiColor4D( color.r, color.g, color.b, 1.0f); |
| mat->AddProperty(&col,1, AI_MATKEY_COLOR_DIFFUSE); |
| |
| conv.materials.push_back(mat.release()); |
| return (unsigned int) conv.materials.size() - 1; |
| } |
| |
| } // ! IFC |
| } // ! Assimp |
| |
| #endif // ASSIMP_BUILD_NO_IFC_IMPORTER |
