john wrote:
> I want to make a base for a sculpture.  
> 
> I want to have a stone with the top surface polished and the sides
> very rough as if they had just been excavated from a quarry.
> 
> Does anyone know of a macro or include file that can generate
> something like this.  Ideally I would like to be able to define the
> dimensions and also the roughness of the vertical surfaces while
> leaving the top flat and polished.

You could use a height field, based on a pigment pattern, adjusted so 
that the middle is fully white (for a smooth flat surface), and the 
edges have noise and gradually go to black away from the center.

Or you could use my rock maker from here:

http://www.geocities.com/evilsnack/inc.htm

and either CSG it to have a flat surface or modify the mesh so that 
points lying in a certain direction are given an upper bound, which will 
also form a flat surface.

Regards,
John

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