46fefc76$1@news.povray.org...
>>
> Use an image_map OK
> Use eval_pigment OK
> Scale the image_map useless.
> If you have a 100x160 pixel image maped to a 1x1 image_map, then location 
> <0.03, 0.825> will give you the value of pixel 3,132.
>
> -- 
> Alain

Right but it's easier for my non mathematician brain to scale <160,100,1> 
and use actual pixel values :-)

Marc

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