On 13/04/2026 19:42, Bald Eagle wrote:
> I've come across papers like this before, and have suggested doing similar
> studies and experiments.
> 
> You'll probably enjoy:
> 
>
https://news.povray.org/povray.binaries.images/thread/%3C5435dc14@news.povray.org%3E/
> 
>
https://news.povray.org/povray.binaries.animations/thread/%3C5437a2da%241%40news.povray.org%3E/
> 
> One approach might be to use combinatiorics or L-systems to iteratively
> construct non-trivial patterns from the available keywords in the hierarchy.
> ...

Thanks for these links, Bill, the trick is interesting. I am already
using L-Systems in my extension and guess that cellular automata can
give good results also. In Rebelle API I am limited to vector
operations of brush movement (press, move, release):
https://www.escapemotions.com/products/rebelle/motionio_doc/reference/json_events_reference/

and all raster-based diffusion effects can be applied later.
This is the reason why I am prefer contour-based patterns in my
investigations.
--
YB

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