Path: chuka.playstation.co.uk!news From: "Roland Boettcher" Newsgroups: scee.yaroze.programming.3d_graphics Subject: Re: HELP:small planar quads Date: 14 Jan 1998 20:44:11 GMT Organization: PlayStation Net Yaroze (SCEE) Lines: 8 Message-ID: <01bd212d$f848afc0$77e16dc0@ulthar.han.de> References: <69ilnb$c4e1@emeka.playstation.co.uk> <34BCEC93.4581@jk.uni-linz.ac.at> NNTP-Posting-Host: ulthar.han.de X-Newsreader: Microsoft Internet News 4.70.1155 I made a tmd from the '.ply' you supplied and watched it using tmdview. Both quads display fine as long as you look at them at a "reasonable" angle. But when the angle gets such that the quad far away is just a line due to perspective it disappears sometimes. It flashes when you are moving to it. Is that what you mean? If so, I guess this is because of inaccuracies of integer calculation. Roland