So, took some time and was some effort to get the
density behave like the stacked planes, but the result
is much more smoother and easily altered in how the
light is scattered etc, that it was well worth the effort.

Doing this I've found that applying some effects from
texture-mapping to density-scattering is quite useful,
I'm thinking about creating some sort of easy access
for this kind of media-interaction, but that'll take a while.

Those interested might give a note and state some features
they'd like to see, so that the result might actually be of
some use. Please note that I'm not into functions, though
that's definitely on my to-learn list.

I've also stumbled across the issue of multiple scattering
containers overlapping, which results in darkening of scattering
media on overlapping parts. I've just put both medias in
one container, which doesn't have the same nullifying effect,
though scattering parts will obviously add to each other.
Higher absorption takes care of that, in case anyone wants
to know...

Regards,
Tim

PS: Other suggestions on how to model clouds are welcome,
I'm interested in how this might be achieved differently!

--
Tim Nikias
Homepage: http://www.digitaltwilight.de/no_lights/index.html
Email: Tim### [at] gmxde

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