No, this is not even close to an imitation - just good old turbulence.
Your comment, however, started a train of thought around the idea of
using a surface with an appropriatly purturbed normal and an ior to
simulate this effect. Actually, this is still pretty far from "the real
thing", but it might be interesting to try.

In regards to "Cadman's Ray-tracing Philosophy", I would agree with it -
in part. However, in regards to addressing _art_ ... well, thats a topic
for povray.philosophy.art  :)

cadman wrote:
> 
> Very very nice.  Just curious, does the method you used imitate nature?  If
> so, that's awesome, and educational.  If art imitates nature, I've found
> that you can make many more things look like they do in real life, and
> usually you can use that sort of in more than one setting.  "Ray-tracing
> philosophy, by cadman."

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