Path: chuka.playstation.co.uk!news From: Phil Gooch Newsgroups: scee.yaroze.programming.3d_graphics Subject: Re: What is a normal? Date: Fri, 14 Aug 1998 13:41:40 +0100 Organization: PlayStation Net Yaroze (SCEE) Lines: 12 Message-ID: <35D43084.7E98EFAA@nospam.easynet.co.uk> References: <35D3F965.D5D79825@nospam.easynet.co.uk> <35D402A6.8830674@parny.force9.co.uk> <01bdc76a$e03e9320$230b0a0a@Angela1.intelligent-group.com> <35D42CF4.A08257E5@ndirect.co.uk> NNTP-Posting-Host: 193.131.140.246 Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Mailer: Mozilla 4.05 [en] (Win95; I) Thanks to everyone who replied. I understand now. Daft questions follow: If the PSX precalculates them, do I need to know about them? And if I do, how do I get hold of a polygon's normal? And should they be normalised? If not, how long should they be? Thanks Phil