Here is an isosurface pyramid I was planning to "decay" and enter into the
previous IRTC still competition, but never got past playing with the image
as is.  I like it, but it needs more "blown sand" on the steps, and I am too
busy to work that out.  I did manage to learn quite a bit about using
isosurfaces, including using pigments as isosurface functions (thanks to
Mike Williams' most valuable  isosurface tutorials, bravo!!) and various
ways to make sand -- surprisingly difficult to get good undulations, the
current occurrence is not entirely to my liking.

Enjoy it not.

Bill

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