Just playing with focal blur, rigged up a simple test scene and it turned out
looking quite nice.

The ground originally had a normal on it, which looked cool but it made the
render take ages (probably the blur needed more samples to look smooth). So I
got bored after an hour and a half and did this version with a flat ground.
Render time 27 minutes, blur samples 60.

--
Tek
http://www.evilsuperbrain.com

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