"jr" <cre### [at] gmailcom> wrote:
> ...
> that would be my expectation too.  the code looks kosher, have you tried with
> same code but different data tile/set?

actually, belay that.  :-)  sorry, noise, etc..

the increments where you make the vector for 'eval_pigment', pretty sure you'll
want '<(.5+b)*(1/xdim), (.5+a)*(1/ydim),0>'.


regards, jr.

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