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144 lines
4.9 KiB
144 lines
4.9 KiB
/**************************************************************************** |
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* VCGLib o o * |
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* Visual and Computer Graphics Library o o * |
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* _ O _ * |
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* Copyright(C) 2004-2016 \/)\/ * |
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* Visual Computing Lab /\/| * |
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* ISTI - Italian National Research Council | * |
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* \ * |
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* All rights reserved. * |
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* * |
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* This program is free software; you can redistribute it and/or modify * |
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* it under the terms of the GNU General Public License as published by * |
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* the Free Software Foundation; either version 2 of the License, or * |
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* (at your option) any later version. * |
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* * |
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* This program is distributed in the hope that it will be useful, * |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of * |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
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* GNU General Public License (http://www.gnu.org/licenses/gpl.txt) * |
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* for more details. * |
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* * |
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****************************************************************************/ |
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/**************************************************************************** |
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History |
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$Log: not supported by cvs2svn $ |
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Revision 1.5 2008/02/27 00:34:43 cignoni |
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corrected various bugs in the export of texture coords |
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Revision 1.4 2007/06/20 10:28:04 tarini |
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"newline at end of file" and "endif" warnings fixed |
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Revision 1.3 2006/11/09 07:51:44 cignoni |
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bug due to wrong access to eventually unexistent FaceColor |
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Revision 1.2 2006/10/09 19:58:08 cignoni |
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Added casts to remove warnings |
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Revision 1.1 2006/03/07 13:19:29 cignoni |
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First Release with OBJ import support |
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Revision 1.1 2006/02/16 19:28:36 fmazzant |
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transfer of Export_3ds.h, Export_obj.h, Io_3ds_obj_material.h from Meshlab to vcg |
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Revision 1.1 2006/02/06 11:04:40 fmazzant |
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added file material.h. it include struct Material, CreateNewMaterial(...) and MaterialsCompare(...) |
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****************************************************************************/ |
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#ifndef __VCGLIB_MATERIAL |
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#define __VCGLIB_MATERIAL |
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#include <string> |
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#include <vector> |
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#include <vcg/space/point3.h> |
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namespace vcg { |
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namespace tri { |
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namespace io { |
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/* |
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structures material |
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*/ |
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struct Material |
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{ |
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unsigned int index=-1;//index of material |
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std::string materialName; |
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Point3f Ka=Point3f(0.2f, 0.2f, 0.2f);//ambient |
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Point3f Kd=Point3f(1.0f, 1.0f, 1.0f);//diffuse |
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Point3f Ks=Point3f(1.0f, 1.0f, 1.0f);//specular |
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//float d;//alpha - not used |
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float Tr=0.0f;//alpha (for Tr, 0 means fully opaque) |
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int illum=2;//specular illumination |
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float Ns=0.f; |
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std::string map_Kd; //filename texture |
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}; |
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template <class SaveMeshType> |
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class Materials |
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{ |
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public: |
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typedef typename SaveMeshType::FaceType FaceType; |
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typedef typename SaveMeshType::FaceIterator FaceIterator; |
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typedef typename SaveMeshType::VertexIterator VertexIterator; |
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typedef typename SaveMeshType::VertexType VertexType; |
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/* |
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creates a new meterial |
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*/ |
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inline static int CreateNewMaterial(const SaveMeshType &m, std::vector<Material> &materials, const FaceType& f) |
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{ |
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Material mtl; |
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if(HasPerFaceColor(m)){ |
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mtl.Kd = Point3f((float)(f.C()[0])/255.0f,(float)(f.C()[1])/255.0f,(float)(f.C()[2])/255.0f);//diffuse |
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mtl.Tr = (float)(255-f.C()[3])/255.0f;//alpha |
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} |
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if(m.textures.size() && HasPerWedgeTexCoord(m) && f.WT(0).n() >=0 ) |
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mtl.map_Kd = m.textures[f.WT(0).n()]; |
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else |
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mtl.map_Kd = ""; |
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int matInd = MaterialsCompare(materials,mtl); |
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if(matInd == -1) |
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{ |
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mtl.index = int(materials.size()); |
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materials.push_back(mtl); |
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return mtl.index; |
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} |
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return matInd; |
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} |
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/* |
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returns the index of the material if it exists inside the list of the materials, |
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otherwise it returns -1. |
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*/ |
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inline static int MaterialsCompare(std::vector<Material> &materials, Material mtl) |
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{ |
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for(unsigned int i=0;i<materials.size();i++) |
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{ |
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if(materials[i].Kd != mtl.Kd ) continue; |
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if(materials[i].Ka != mtl.Ka ) continue; |
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if(materials[i].Ks != mtl.Ks ) continue; |
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if(materials[i].Tr != mtl.Tr ) continue; |
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if(materials[i].illum != mtl.illum ) continue; |
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if(materials[i].Ns != mtl.Ns ) continue; |
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if(materials[i].map_Kd != mtl.map_Kd) continue; |
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return i; |
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} |
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return -1; |
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} |
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}; |
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} |
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} |
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} |
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#endif //__VCGLIB_MATERIAL
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