Path: chuka.playstation.co.uk!news
From: "Derek da Silva" <dasi@eidosnet.co.uk>
Newsgroups: scee.yaroze.freetalk.english
Subject: Re: repairing a matrix
Date: Mon, 8 Jan 2001 11:14:18 -0000
Organization: PlayStation Net Yaroze (SCEE)
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Message-ID: <93c7ep$iic1@www.netyaroze-europe.com>
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Have a look at "STEP 6. Precision problems" in P. Passmore's 3D tutorial.

www.netyaroze-europe.com/~middx_uni/ftp/tutorial.zip


Derek da Silva


"Jon Prestidge (Moose)" <jon@surfed.to> wrote in message
news:93ab2b$nvo1@www.netyaroze-europe.com...
> Hello,
>
> I understand that to get an object's matrix back to have perfectly
> perpendictular axis and proper scale (after it has gradually been
corrupted
> by many rotations) you can some how use a cross product or a dot product
> method, but I don't know any more than that.  And I can't immediately
> work-out how it's done.  Can anyone explain it further (which elements of
> the matrix you do what to etc), or perhaps give me a code snippet?
>
> Cheers,
> Jon Prestidge.
>
>