**************************************************************** student : Andrew Galland, agalland graded by : karianne time : Sun Nov 15 EDT 1998 problem set: assignment 3 -------------------------------------------- rotation: -3 perspective: -5 interface:+2 functionality (0-90):82 extra credit (0-10):2 total (0-100):84 -------------------------------------------- notes: The image disappear when you rotate over a certain angle. Are you initializing everything (I checked your rotation matrix, it is OK). The commented out perspective matrix has some values flipped (the (0,0) and (1,1) fields are incorrect). If this was your earlier attempt, then the problem is explained. ****************************************************************