"Fabien Mosen" wrote:
> Imagine a scene without a camera.  Can you get the pigment value
> of a suface's point ? Yes.  Can you get the normal at that point ?
> Yes.  Can you get the color variation caused by reflection at that
> point ? No !

You can't compare like that! Either you must compare the *values* of
pigment, normal, and finish. *OR* you must compare the *appearance* of
pigment, normal, and finish.

You can't compare the *values* of pigment and normal with the *appearance*
of finish. That doesn't make sense.

Rune
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