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#ifndef OBJ_MATERIAL_H
#define OBJ_MATERIAL_H
#include <sstream>
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#include <cstring>
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namespace stim {
template<typename T>
struct obj_material {
std::string name; //material name
T ka[3]; //ambient color
T kd[3]; //diffuse color
T ks[3]; //specular color
T ns; //specular exponent
int illum; //illumination model
std::string tex_ka; //ambient texture
std::string tex_kd; //diffuse texture
std::string tex_ks; //specular texture
std::string tex_ns; //texture map for the specular exponent
std::string tex_alpha; //texture map for the alpha component
std::string tex_bump; //bump map
std::string tex_disp; //displacement map
std::string tex_decal; //stencil decal
obj_material() { //constructor
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std::memset(ka, 0, sizeof(T) * 3);
std::memset(kd, 0, sizeof(T) * 3);
std::memset(ks, 0, sizeof(T) * 3);
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ns = 10;
illum = 2;
}
std::string str() {
std::stringstream ss;
ss << "newmtl " << name << std::endl;
ss << "Ka " << ka[0] << " " << ka[1] << " " << ka[2] << std::endl;
ss << "Kd " << kd[0] << " " << kd[1] << " " << kd[2] << std::endl;
ss << "Ks " << ks[0] << " " << ks[1] << " " << ks[2] << std::endl;
ss << "Ns " << ns << std::endl;
ss << "illum " << illum << std::endl;
if (tex_ka != "") ss << "map_Ka " << tex_ka << std::endl;
if (tex_kd != "") ss << "map_Kd " << tex_kd << std::endl;
if (tex_ks != "") ss << "map_Ks " << tex_ks << std::endl;
if (tex_ns != "") ss << "map_Ns " << tex_ns << std::endl;
if (tex_alpha != "") ss << "map_d " << tex_alpha << std::endl;
if (tex_bump != "") ss << "bump " << tex_bump << std::endl;
if (tex_disp != "") ss << "disp " << tex_disp << std::endl;
if (tex_decal != "") ss << "decal " << tex_decal << std::endl;
return ss.str();
}
};
} //end namespace stim
#endif
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