Path: chuka.playstation.co.uk!news From: sceetech Newsgroups: scee.yaroze.programming.3d_graphics Subject: Re: 3D engines Date: Tue, 08 Apr 1997 12:47:36 +0100 Organization: SCEE Lines: 34 Message-ID: <334A3058.218B@interactive.sony.com> References: <3347dd19.3248416@news.playstation.co.uk> <3348D38C.1DC1@interactive.sony.com> <334A3648.1873@micronetics.com> <3349266B.7BD4@interactive.sony.com> <3349a345.33045335@news.playstation.co.uk> Reply-To: ps_yaroze@interactive.sony.com NNTP-Posting-Host: 194.203.13.10 Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Mailer: Mozilla 3.01 (Win95; I) Hi, At the moment the Yaroze is still a closed system, ( just like the full PS development kit ) with the libraries supplying you access. If you want to produce a landscape routine using the Yaroze libraries it doesn't have to run as fast as it might do using hand coded asm/gte code. That isn't really the point of the Yaroze. Because it is a closed system, the terms and conditions specifically state that reverse engineering isn't allowed. I have seen hundreds of games come in, many using LibGS, and many using 'improved low level gte'. The performance differences in most cases come more from interleaved assembly than any straight change of functionality, and there are quite a few that seem to offer less performance rather than more. With Yaroze the emphasis is more on providing new styles of gameplay - original ideas, rather than upping your frame rate from 30 to 60. We will update the Yaroze libraries, but we are very unlikely to replace them completely. After all the Japanese site has some excellent games, and they use LibPS. Put your code on your sites though, I think that the sharing of code between Yaroze members is one of the nicest things about the sight, but don't expect miracles from Sony, after all we are a huge Japanese company. Cheers, Colin. PS: The full developers, who know about low level GTE etc, have all signed VERY SECURE legal agreements with Sony, that allow us to torture their families etc. if they leak info. After all the PS is big business for us!!!!!!!!!