Path: chuka.playstation.co.uk!news From: "Peter" Newsgroups: scee.yaroze.freetalk.english Subject: Re: freeserve sees the light (and octtrees) Date: Tue, 6 Mar 2001 00:58:48 -0000 Organization: PlayStation Net Yaroze (SCEE) Lines: 84 Message-ID: <981cgj$9v32@www.netyaroze-europe.com> References: <97pffv$deu1@www.netyaroze-europe.com> <9814tp$9v31@www.netyaroze-europe.com> Reply-To: "Peter" NNTP-Posting-Host: host62-7-7-254.btinternet.com X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 5.50.4522.1200 X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4522.1200 Yer, the whole maths thing is just a nightmare. Its never been my strong point so what ever posessed me to get into graphics I'll never know =) I started off looking a dynamic TMDs and its just kind of snow-balled, Now I'm working through the Watt book, my idiots guide to Calculus and a book on engineering mathmatics. I've booked a nervous breakdown for Thursday and I'm planning a mid-life crisis on Friday, so I reckon I can start coding again at the weekend. Although I destinctly remember saying that about 2 weeks ago...Oh well ;) Hugz "John ( QuietBloke )" wrote in message news:9814tp$9v31@www.netyaroze-europe.com... > Nice to have you back here Martin. > Im afraid it was me asking the octree question.. and whats worse it that Im > sure there will be many more to come. Ive taken a step back at the moment > and decided to begin at the beginning. I actually got hold of a Pure > Mathematics book and started wading through that to re-learn hence the total > lack of a project coming from me at the moment but very soon now Im gonna > get stuck in to some coding again and Im sure Im gonna come up with some > daft questions > > As for the books. Would you believe I actually had an old copy of Watt's > book. I keep running out of shelf/desk space so I have boxes of books and > when I looked back there it was. Having seen the cover I remember I bought > it just when it came out as a 2nd edition after reading a review of it ( > according to the book it was in '93 !.. was it THAT long ago ? ). Anyway.. > things have moved on a bit so I bought the latest revision of it and its > actually making a lot more sense this time round. I probably will get Foley > & Van Dam too but from what Ive heard its heavy reading so Im gonna wait > till things sink in a bit more before I tackle that one. > > eeekk.. Im waffling again... > > as I was saying.. welcome back and where's those games ? > > John ( QuietBloke ) > > "Martin Keates" wrote in message > news:97pffv$deu1@www.netyaroze-europe.com... > > 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. > > > > > > > >