On Thu, 07 Sep 2000 19:39:16 -0500, Chris Huff wrote:
>I have attached an image of a sphere with a crackle pigment. As you see, 
>it has separate "cells". In the official version and MegaPOV, these are 
>located randomly, I was wondering if it would be possible to specify 
>their locations and strengths manually, maybe as an extension to the 
>blob pattern.

Yes, but you'd need an efficient data structure to find the closest center
to a given sample point quickly.  Fortunately, I've done some work in that 
field (though in 2D) so I have some ideas on how it might be done.

Such a pattern would solve Gilles' lizard-skin problem, too.

-- 
Ron Parker   http://www2.fwi.com/~parkerr/traces.html
My opinions.  Mine.  Not anyone else's.

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