> Also, I'd like to get my renderings a little bit "dirtier" :
> is it possible to add a subtle grainy effect (like the
> grain of a film in the photography world) to the entiere
> rendering ?

Make a sphere or disc with a semi-transparent noisy texture. Scale it
very tiny and translate it to be just in front of the camera (if it is a
disc) or centered around the camera location (if it is a sphere). Make
sure the finish of the noise texture has an ambient of 1 and a diffuse
of 0 so that it is not affected by lighting in the scene. I don't have
any ready-to-use code but try out some things and see what works for
you.

Rune
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rune|vision:  http://runevision.com (updated Oct 19)
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