From: "Thomas Harte" <T DOT Harte AT btinternet DOT _c_o_m_>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: 3D-boy is back!
Date: Mon, 11 Sep 2000 20:52:23 +0100
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Damian Yerrick wrote in message
<3fgors489d8j67ljohb909kkto44tttvhm AT 4ax DOT com>...
>in front is a vector toward what you want to look at, preferably
>normalized to length 1.00000

Actually, Allegro does this for you. It also does a quick 'strengthening' of
the orthogonality of the front/up/in vectors. Which is lucky for me, because
I always have plenty of difficulty trying to slow my program down with
unnecessary sqrt's and dot products . . .


-Thomas