Gergely Vandor wrote:

>I know my crack pattern is lame, so feel free to help me improve it. :)
>
Use a 2D Julia or Mandlebrot or suchlike mapped to the  surface; where it
exceeds
threshhold, have crack, and where it doesn't, have surface (or vice versa).
You'll probably want to use a tiny range if you use mandlebrot, but some
julias,
IIRC, have a nice thin spidery pattern in their 2D interpretation.

--Chris

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