Path: chuka.playstation.co.uk!news From: James Russell Newsgroups: scee.yaroze.programming.3d_graphics Subject: Re: Vectors and Matrices Mini Tutorial Date: Fri, 10 Jul 1998 14:13:18 +0100 Organization: Sony Computer Entertainment Europe Lines: 21 Message-ID: <35A6136E.43F12D49@scee.sony.co.uk> References: <35A25BBF.F272A126@scee.sony.co.uk> <35A5DCF1.10D9E988@immd9.informatik.uni-erlangen.de> <35A5E3E1.488F60AF@scee.sony.co.uk> <35A60516.ED4487A1@immd9.informatik.uni-erlangen.de> NNTP-Posting-Host: camfw01.millennium.co.uk Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Mailer: Mozilla 4.05 [en] (Win95; I) Christoph Luerig wrote: > > Up to now I assumed (but I did not find it anywhere explicitely), that the z-values used > for the ordering tables are the ones used after the application of the LS matrix but before > the application of the perspective projection, is that correct? Absolutely spot on. The value that's used to put a polygon into the OT is the _average_ Z value of all the points in the polygon. Cheers, James -- == James_Russell@scee.sony.co.uk +44 (171) 447-1626 == Developer Support Engineer - Sony Computer Entertainment Europe Power corrupts. Absolute power is kind of neat.