On 9/3/23 21:49, William F Pokorny wrote:
> As for using the pattern to perturb raw normals to make things look more 
> rounded(a). I'd not thought about it, but I will. I've played quite a 
> bit with perturbed normal methods in the povr fork. My guess is 
> something based on the surface density measure could work OK for the 
> 'far side' edges, but might be problematic where the edge faces the 
> incoming rays. There would likely be a visible discontinuity in that 
> case. That said, I'll think about it. It's an interesting idea(b).

And on hitting send, I thought, why not just try Sam's idea...

Attached is an image where I turned the pigment plain white - this the 
image on the left. I then used the existing dens_object set up as a 
normal{} block value pattern. This the image in the middle - the 
polarity of the -1..1 function interval is wrong. Well povr has an 
'inverse' scalar value pattern wave modifier. Added it and we get the 
image on the right - and, dang Sam, that looks pretty good as a quick go 
at it! :-) Thanks for the idea!

Bill P.

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