On 10/11/20 2:14 PM, William F Pokorny wrote:
> While thinking of deleting the quilted value pattern, started to toy 
> with the idea of replacing it with a seed pattern having values in the 
> function_interval range of -1 to 1.
> 
...
> 
> J - H again with phase +0.1 and adding some turbulence.
> 
> K - J adding the povr wave inverse wave keyword.
> 
> L - J made more turbulent. Adding a light to the scene.
> 

One more isosurface image using something similar to L to displace a 
surface.

It reminds me a little of a tunnel I once traversed. A tunnel created by 
blasting through solid rock.

Bill P.

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