Function OBJMaterial__preprocess

tutorials/pathtracer/pathtracer_device.cpp:538–552

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void OBJMaterial__preprocess(ISPCOBJMaterial* material, BRDF& brdf, const Vec3fa& wo, const DifferentialGeometry& dg, const Medium& medium)
{
    float d = material->d;
    if (material->map_d) d *= getTextureTexel1f(material->map_d,dg.u,dg.v);
    brdf.Ka = Vec3fa(material->Ka);
    //if (material->map_Ka) { brdf.Ka *= material->map_Ka->get(dg.st); }
    brdf.Kd = d * Vec3fa(material->Kd);
    if (material->map_Kd) brdf.Kd = brdf.Kd * getTextureTexel3f(material->map_Kd,dg.u,dg.v);
    brdf.Ks = d * Vec3fa(material->Ks);
    //if (material->map_Ks) brdf.Ks *= material->map_Ks->get(dg.st);
    brdf.Ns = material->Ns;
    //if (material->map_Ns) { brdf.Ns *= material->map_Ns.get(dg.st); }
    brdf.Kt = (1.0f-d)*Vec3fa(material->Kt);
    brdf.Ni = material->Ni;
}

Vec3fa OBJMaterial__eval(ISPCOBJMaterial* material, const BRDF& brdf, const Vec3fa& wo, const DifferentialGeometry& dg, const Vec3fa& wi)
{