**************************************************************** student : James Robertson graded by : quark time : Sun Oct 25 21:16:15 EST 1998 problem set: assignment 2 -------------------------------------------- hexcone: visible probs?: missing center pixel bad pixels (%): 15.994 ave error: 2.998 time(ms): 38 teapot: visible probs?: speckled bad pixels (%): 16.4375 ave error: 17.025 time(ms): 201 cow: visible probs?: slightly speckled bad pixels (%): 22.920 ave error: 12.726 time(ms): 287 extra tri file: triangles in a triangle functionality (0-90): 85 extra credit (0-10): 5 total (0-100): 90 -------------------------------------------- notes: Speed is great, but you have lots of missing pixels. One error that I see is that you cast the floating-point coordinate values to integers when you should use floor and ceiling instead. If you have time, make this small change and see if it solves the problem; it's possible you have other minor calculation errors, though. The fact that you have a pixel missing in the simple case of hexcone should make debugging easier. ****************************************************************