Path: chuka.playstation.co.uk!news From: alex@teeth.demon.co.uk (Alex Amsel) Newsgroups: scee.yaroze.programming.3d_graphics Subject: Re: single sided faces Date: Mon, 20 Oct 1997 15:05:41 GMT Organization: Into Beyond Lines: 33 Message-ID: <344b72db.5498248@news.playstation.co.uk> References: <344B59AC.3ABB@127.0.0.1> Reply-To: alex@teeth.demon.co.uk NNTP-Posting-Host: teeth.demon.co.uk Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Newsreader: Forte Agent .99g/32.335 On Mon, 20 Oct 1997 14:16:28 +0100, Majik did quoth at me: >quick query, this may have been answered previously, but > >if I create a quadrangle, on the fly, in a tmd structure, then what are >the rules governing the specification of the vertices, as it seems to be Top Left, Top Right, Bottom Left, Bottom Right (IMPORTANT!) As for how to tell - imagine you are looking at it from the correct direction, and chose the appropriate vertices. >that one way (clockwise) makes square face in one direction and the >other does the opposite, which is fair enough, but how can I tell which >way to specify the vertices given that I want a polygon to face in a >given direction.. also I tried the double sided polygon bit, but that >didn't seem to do anything. All we have done for double sided is to set the flag and put the opposite polygon immediately afterwards in the hope that the libs will optimise as appropriate. I'm not really sure on this. Sony? Regards, Alex Amsel + Tuna Technologies + Telephone & Fax +44 (0)114 221 0686 + + For all your Win95/NT/Console Game and Tool Development + + And we say, "A good programmer always blames Microsoft" + + I proclaimed "Bring back the Doog!", and so it was done +