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POV-Ray for a project. In order to achieve a reasonable
(hopefully that's the appropriate term) to create a degree of image
to generate the desired effect in POV-Ray?
May be able to do it using radiosity and/or a
Media (atmosphere) can look 'grainy' with the right parameters.
If you (Mark) aren't familiar with those, read up on them, and
(look in <povray_dir>/scenes/* for examples)