Simen Kvaal wrote:
> 
> Wow! Very cool! And funny!

Thanks!
..
> Can I have a guess at the sand? An isosurface with e.g. a plane as a base
> function, then a largely scaled, slightly turbulenced marble pigment
> function added, and then yet a marble added with different orientation
> and/or turbulence?

I'm using pattern image. It is faster to work with than isosurfaces and I
have more freedom with loops and such. Basically it's a bunch of sylindrical
patterns + a spiral for the hf and a marble bump_map. 

I've uploaded the source in the binary group. It's probably bigger than you
thought, actually than I thought too.. It was originally 5 different files.

sig

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