Le 2020-04-24 à 23:21, Josh a écrit :

> Yes, I figured out more with textures and I agree, the textures should be
> straightforward. Does anyone have ideas about how to make more complex geometry?
> It's not too hard to add noise3d to a basic shape, but any ideas about how to
> (programmatically?) create more of those complex rough rocky geometries? Thanks
> to everyone for the help.
> 
> Josh
> 
> 
> 
> 
An isosurface sphere with some noise added.
With
#include "function.inc"
Possible noise sources : f_noise3d, granite, agate,...

sample code :
#declare R=seed(1);
function{
   f_sphere(x,y,z,1)
   +f_noise3d(x*10+rand(R),y*10+rand(R),z*10+rand(R))
   -f_agate(x*5+rand(R),y*5+rand(R),z*5+rand(R))
}

If you define and place 20 isosurfaces using that function in your 
scene, they will all be different.

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