Re: rear-view mirror

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Scott McMillan (mcmillan++at++cambridge.com)
Tue, 28 Apr 1998 09:54:32 -0400

Barry S. Folse wrote:
>
> I don't think this solution is correct. Besides facing the channel
> backwards, you also need to invert it. Without inverting it, if
> you saw an ambulance in your "mirror", the writing on the front
> of it would still read "ecnalubma".
>
> I'm not sure how that would be done, possibly by giving the view
> matrix a negative Y-scale. Anyone?

yep you need to reverse right and left...I used the negative
scale in OpenGL once.

-- 
Scott McMillan                   mailto:mcmillan++at++cambridge.com
Cambridge Research Associates    Ministry of Silly Walks
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