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