Path: chuka.playstation.co.uk!news From: Alan Marshall Newsgroups: scee.yaroze.freetalk.english Subject: Re: openGl from yaroze conversion Date: Sun, 27 Jun 1999 13:31:56 +0100 Organization: PlayStation Net Yaroze (SCEE) Lines: 52 Message-ID: <377619BC.66BC29FE@breathemail.net> References: <37702400.7AFE4B6B@breathemail.net> <930348110.639671215@www.netyaroze-europe.com> NNTP-Posting-Host: VIP-206-8.vip.uk.com Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Mailer: Mozilla 4.6 [en] (Win95; I) X-Accept-Language: en I heard that although those 2 Matrox cards are v good, their OpenGL support isn't as good as it should be, but maybe that's just a Windoze thing. IS the 400 out here yet, or just in US? Slight tangent but I think some of the TNT2 cards ship with Win95,98,NT and BEos and Linux drivers! When you say performance edge, what exactly do you mean? Do you just mean faster or what? My only experience of Direct3D is playing a game, selecting openGL, then Direct3D, and then sticking to OpenGL. I decided not to bother to learn Direct3D ;) Back to my original thread ;) it took 1 afternoon of OpenGl to do what took 3 weeks of yaroze, d'oh! Makes me think maybe I should have listened to my class mates and lecturers when they told me it would be easier in OpenGL. the main thing is though I've got something else to put on my CV when I have to step oit into the "real world" in September ;) Al Toby Sargeant wrote: > > On Fri, 25 Jun 1999 22:01:50 +0000, Craig Graham wrote: > >Alan Marshall wrote: > > > >OpenGL is so much easier to code for than Direct3D it's scary, > >but unfortunately Direct3D has a huge performance edge over > >the GL library I'm using now (MesaGL on Linux). > > > >I cam across a project to clone Wipeout on openGL the other day, > >and it's pretty but dog slow..... > > > >Craig. > > > > MesaGL is a performace pig, yes. Especially given the fact that it's software > only unless you've got a 3DFX card. > > According to a friend of mine, the Matrox G200/G400 GLX support is the thing to > watch. They have almost full support from Matrox and John Carmack is providing > optimisation tips. > > Linux is also lacking in the very large DMA chunk area, which is something > that the 2.3 series of kernels will apparently address. This should allow a > large speed increase, as programmers will be able to decouple the graphics > card and the CPU to a greater extent. > > Toby.