CompuServe Messages

Judy, << z-buffer advantages? >> If you don't mind my jumping in: As I understand it the major advantage of z-buffering is that it can give you pixel-accurate intersections between objects. Other algorithms which sort at the face or object level usually pay for it with increased artifacting…faces showing through each other, and so on…because of the complicated math they use to calculate intersections. The major disadvantage of z-buffering is the memory required to maintain the buffer. There are also potential problems with the number of faces which can be behind one another in a particular line of sight, and with the minimum distance between two faces so that they will not show through each other…but I have not known 3D Studio to suffer from either of these problems. Stephen Milligan Graphic Media Systems