Path: chuka.playstation.co.uk!news
From: "Peter Dollochan" <Peter.Dollochan@btinternet.com>
Newsgroups: scee.yaroze.programming.3d_graphics
Subject: Quirky Maths Prob
Date: 22 Jan 1998 16:16:01 GMT
Organization: PlayStation Net Yaroze (SCEE)
Lines: 14
Message-ID: <01bd2751$acaa0620$cc3163c3@default>
NNTP-Posting-Host: host5-99-49-204.btinternet.com
X-Newsreader: Microsoft Internet News 4.70.1161

Hi all,

Anybody fancy answering this for me :)

given three vertices x1,y1,z1  x2,y2,z2  x3,y3,z3 that
make up a polygon.
How  would I find  the Y height of a point on the plane of that 
polygon given the x and z coords of the point.
I've messed around with the plane equation but seem to 
be going wrong somewhere :(

cheers Pete.