Hi, I''m learning OpenGL and I''m really enjoying it. I''m starting to make a pool game. But when using quadratics, the depth test isn''t working right all the time. I''ve tried using a different pointer for each ball, but it still didn''t work. I just really don''t know what I''m doing wrong. Could someone please help me? You can get the code at: http://wwwetu.utc.fr/~arnaudro/ it''s the zipped file called pool. Thanks Roming roming22@msn.com