Hi all, I successfully loaded a .3ds file (at least, the stuff i need). I calculated normals per face and per vertex. Now when i render the faces i''d like to know if they are smoothed or not. I can''t seem to figure out how to get to know that. There''s a smooth groups chunk in the .3ds file and each face has flags. But I don''t know the content or meaning of that information in the file, so I can''t read it. Does anyone know how to or know documentation that DOES tell how it works? Thanx, Marty