-------------------------------------------- student : henryw graded by : Charles B Lee time : Fri Nov 19 5:23:20 EST 1999 problem set: ivray -------------------------------------------- Eye ray generation (0-2): 2 Cone, cyl, poly isection (0-2): 1 Shadow (0-1): 1 Reflection (0-2): 1 Transmission (0-2): 1 Shading (0-2): 1 Supersampling and jittering (0-2): 1 Statistics (0-1): 1 Exactitude (0-1): 0 total (0-15): 9 -------------------------------------------- notes: Good effort on this tough problem set. A few comments: There seems to be something wrong with your cone intersection routine Your scene does not seem to be lit correctly. I think there is a bug in your reflection code that is causing the scene to be too dark. I believe you should have user += instead of +. --------------------------------------------