Path: chuka.playstation.co.uk!news
From: alex@teeth.demon.co.uk (Alex Amsel)
Newsgroups: scee.yaroze.programming.libraries
Subject: Re: Rotation Matrix Functions
Date: Mon, 07 Apr 1997 16:37:40 GMT
Organization: Into Beyond
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References: <01bc4074$bd79ee80$d603e8c3@fred> <334A0C83.5959@micronetics.com> <3348D96D.289@interactive.sony.com>
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On Mon, 07 Apr 1997 12:24:29 +0100, sceetech
<ps_yaroze@interactive.sony.com> did quoth at me:


>to monitor the error: eg every N frames, inspect the matrix,
>look at it as 3 vectors, one per axis of the the object;
>usually each started off life with size ONE (ie 4096),
>hence test the actual sizes and rescale to ONE if
>necessary. Les than ideal, but does prevent runaway errors.

Can you also recalc an axis of the matrix from the other two to ensure
perpen..perpendicul....they are all at 90 degrees to each other ?-)

Just do a different axis whenever you recalc and that should keep
errors down.


* Alex Amsel * Into Beyond Web Design & JAVA Programming *
* http://www.intobeyond.com  *  WWFC Play off ****ers'97 *
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