Path: chuka.playstation.co.uk!chuka.playstation.co.uk!chuka.playstation.co.uk!not-for-mail From: Lewis_Evans@Playstation.sony.com Newsgroups: scee.yaroze.programming.3d_graphics Subject: Help:Overlapping polys Date: 13 Feb 1998 20:39:08 -0000 Organization: Sony Computer Entertainment Europe - 119.SS5 Lines: 52 Sender: news@chuka.playstation.co.uk Message-ID: <6c2b1c$9p91@emeka.playstation.co.uk> Reply-To: Lewis_Evans@Playstation.sony.com NNTP-Posting-Host: emeka.playstation.co.uk From: Lewis_Evans@Playstation.sony.com To: news@playstation.co.uk As regards the two models, separate OTs for each, then registering each small OT into the overall OT at different places will guarantee that this doesn't happen. At least one European Yaroze member has done a demo on multiple OTs; the only sticking point is the use of offset and point members of GsOT structure. As regards polygons within the single model coming out in the wrong order: you could probably reduce this using subdivision, but that solution might carry a punitive time cost. Or, view the model from all angles, note exactly where the glitches are, and make minimal changes in your modelling package. (Less than ideal I know). The root cause of this is that the PSX orders polygons in OT using a single z value per poly. Lewis To: Lewis Evans cc: From: news @ playstation.co.uk Subject: Help:Overlapping polys:scee.yaroze.programming.3d_graphics From: "Parrott D.H. CSM BSc/SoftEng 3" Newsgroups: scee.yaroze.programming.3d_graphics Subject: Help:Overlapping polys Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Hello, I am having a problem with models that are close to each other... for example: I have 2 models one infront of the other. Some of the polygons from the behind object insist on drawing over the model infront. The behind model will always be behind so what I could do is make sure the infront model is infront in the OT. The problem is I don't know how to do this. I have tried use GsSort() but my program just went odd! Another related problem I am finding with models is that polygons within the model are sometimes drawn in the wrong order making it look naff.