Very cool Frederic! This will be quite useful on my more complex scenes.

Ran a trial and i wonder about the sky areas? Spectral atmo and clouds were used. Maybe it's finding some "grain"? The figure would probably be brighter, were it not for the fact that i decimated that VOB.

BTW, i recommend not using tiles as small as i did because your most complex scene areas may get spread over more than 1 tile too much. This was 640 size and 10x10 grid.

Thanks Frederic!