protected Vector3 Color(Ray ray, int depth, int max_depth)
{
HitData hit_data = new HitData();
if (Hit(ray, 0.01f, MAX_HIT_DISTANCE, ref hit_data))
{
Ray scattered = new Ray();
Vector3 attenuation = Vector3.Zero;
IMaterialScatter material_scatter = MaterialScatters.GetMaterialScatter(hit_data.Material);
Vector3 emit = material_scatter.Emit(hit_data.Material, ray, hit_data);
if (depth < max_depth && material_scatter.Scatter(hit_data.Material, ray, hit_data, ref attenuation, ref scattered))
{
return(emit + attenuation * Color(scattered, depth + 1, max_depth));
}
else
{
return(emit);
}
}
return(Vector3.Zero);
}
private static void AddScatter(IMaterial material, IMaterialScatter scatter)
{
material_scatters.Add(material.TypeName, scatter);
}
