gramirosimancas wrote:

> I think it would be like moving from calculating a point to moving to a
> surface integral (with all the boundary cases).

One problem with this approach that occurs to me immediately is that,
depending on how complex a texture is or how many surfaces occur
inside your rectangular area, the surface function might not be
continuous, so integrating might present challenges to say the least.

-- 
Steve Martin, CPBE CBNT

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