Path: chuka.playstation.co.uk!news From: john.j@netway.at Newsgroups: scee.yaroze.programming.3d_graphics Subject: Pls help a 3dimensional newbie... Date: Fri, 05 Nov 1999 22:07:46 +0100 Organization: PlayStation Net Yaroze (SCEE) Lines: 41 Message-ID: <38234722.9002B4AA@netway.at> NNTP-Posting-Host: t1p140.at-732.netway.at Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Mailer: Mozilla 4.5 [de] (Win95; I) X-Accept-Language: de,en,nl Hi! I have a (from my point of view - very) big problem 2 solve... I have a TMD (one single quad), and I want it to turn always in such a way that it's facing always to one point... Some examples: P . . . | P . . . / The quad is a child of a super.coord (not world), the point P is case 1: from WORLD case 2: any other coord.system My thoughts go in this way: 1) check if both (Point and quad) are members of the same coord.system 2) if not - convert them to world (using GsGetLw) 3) check the coordinate differens (delta x, delta z) 4) calculate somehow the angle for the quad.... As you can see, 3d is a very new terrain for me... Could somebody point me in the right direction??? Many thanx in advance greetz JJoS btw: sorry for my bad english... :)