Function VelvetMaterial__eval

tutorials/pathtracer/pathtracer_device.cpp:696–701

}

Vec3fa VelvetMaterial__eval(ISPCVelvetMaterial* This, const BRDF& brdf, const Vec3fa& wo, const DifferentialGeometry& dg, const Vec3fa& wi)
{
  Minneart minneart; Minneart__Constructor(&minneart,(Vec3fa)Vec3fa(This->reflectance),This->backScattering);
  Velvety velvety; Velvety__Constructor (&velvety,Vec3fa((Vec3fa)This->horizonScatteringColor),This->horizonScatteringFallOff);
  return Minneart__eval(&minneart,wo,dg,wi) + Velvety__eval(&velvety,wo,dg,wi);
}

Vec3fa VelvetMaterial__sample(ISPCVelvetMaterial* This, const BRDF& brdf, const Vec3fa& Lw, const Vec3fa& wo, const DifferentialGeometry& dg, Sample3f& wi_o, Medium& medium, const Vec2f& s)
{