I wanted to get a nice background for building sci-fi spaceships/airships
against, so I thought I'd play with media to see if I could get something pretty
& fairly fast to draw. This is the result.

There's emitting & absorbing media for the fog, and an absorbing media for the
clouds. It would be nice to do scattering too but that would turn the 1 minute
render time into a couple of hours!

For anyone who wants it, density function for the smoke is as follows:

pigment_pattern { granite scale <5,20,5> warp { turbulence .4 octaves 3 }
colour_map { [.5 rgb 0][.8 rgb 1] } }
rotate -y*8 translate z*7-y*2 // so it looks good viewed from -4*z
cubic_wave
warp { turbulence .3 lambda 2.5 }

--
Tek
http://evilsuperbrain.com

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