47208206$1@news.povray.org...
>>> The yellow car as seen thru the windshield of the dark car is far from
>>> completely smooth. :-) Altho that might just be the jpeg compression or
>>> something
>>
>>  Jpeg compression doesn't add that kind of high-frequency noise.
>
> Looks like noise due to high ISO setting (and/or low sensor size) on the 
> camera.  Makes it look more like a real photo IMO.

It seems to work like the other unbiased renderers I've tested: the image 
starts black, then grainy, then less grainy, and is progressively refined... 
until the user decides it's good enough and stops the render.

G.

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