> One thing I completely didn't understand was the need to
> reverse the cell scaling for the inner pigment. I would have
> expected that scaling the cell pattern up would give me larger
> cells but not affect the scaling of pigments in the pigment_map.
> But leaving out the correction factor just gave me horizontal
> streaks (3.6.1 and 3.7 beta 39).

When you scale a pigment or texture, you scale all of it, including any 
sub pattern or texture. The pigment_map is effectively part of the cells 
pattern.
You can think of scaling as similar to a magnifying glass. It don't 
discriminate between the various parts.



Alain

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