Path: chuka.playstation.co.uk!news From: "Martin Keates" Newsgroups: scee.yaroze.freetalk.english Subject: freeserve sees the light (and octtrees) Date: Sat, 3 Mar 2001 00:57:03 -0000 Organization: PlayStation Net Yaroze (SCEE) Lines: 34 Message-ID: <97pffv$deu1@www.netyaroze-europe.com> NNTP-Posting-Host: modem-95.aluminum.dialup.pol.co.uk X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 5.00.2314.1300 X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2314.1300 Hello, today was a great day for science. Or, at least, suddenly I can see the yaroze servers using freeserve. Marvellous. Now I can check them every day instead of like once a month and possibly get actively involved with this thing and upload stuff and things. Anyway, I'm Martin, I got my yaroze right at the end of them being available. I've done a bit of 2D coding on it (couple of crap games which I'll upload now I can do it for free) but I'm basically a 3D man. My experience is in rendering (ray tracing, radiosity, volume rendering) and VR (culling, collision detection and so on). People were talking about octrees and what good they are recently. Well they are used a lot in rendering in particular ray tracing for improving ray-object intersections. Other approaches are regular grids or more generic subdivisions based on complexity. BB hierarchies aren't so good (for this). You could probably use octrees for culling and collision but BBs are so fast even for massive models that there's probably not much point. Anyway, as far as the yaroze goes, there probably isn't enough memory in it to implement much of a spatial management system - not such a general one anyway. I was going to try and use something specific to whatever game I *am* going to write someday. (high optimism there). I used Watt at university too (11 years ago...). I think Foley and Van Dam is better, but no idea about recent books. later, Martin.