I generally use:

pigment {
  crackle
  form <1,0,0> //make circular shapes, not polygonal ones
  colour_map { [.3 spotcolour][.3 basecolour] }
}

That way the spots have a random distribution but each is perfectly 
circular.

-- 
Tek
http://evilsuperbrain.com

"Stephen" <mcavoys_AT_aolDOT.com> wrote in message 
news:web.452e464ea4e3cf9df1cb1e660@news.povray.org...
>I would like to make a texture for a regular object like a sphere or blob
> that would have a base colour with random (controllable) spots of another
> colour. Like measles spots or a toadstool. I am at a loss, and would
> appreciate a hint or clue about how to go about it?
>
> TIA
>
> Stephen
>
>

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