Chaos Corona Forum
Chaos Corona for 3ds Max => [Max] I need help! => Topic started by: dj_buckley on 2021-10-22, 12:17:15
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Hi
I've just rendered a scene twice.
The first one had a HDRI in the Direct Visibility Slot. The second one was just black in the Direct Visibility slot (HDRI turned off)
The first one took 1 hour and 50 minutes
The second one took 2 hours and 30 minutes
Is this normal? A 40 minutes increase to render on black? There were rendered one after the other, so the only thing I can think is a RAM issue as it is a RAM intensive scene?
But I would have expected a speed increase on the black background.
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I guess you're using noise level as render stop condition, right? That's happening because the difference in how Corona calculates noise for bright and dark backgrounds. It's annoying, but i learned to use pass limit when doing product rendering on solid colour background.
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Correct. And thanks for highlighting.
I normally wouldn't notice as I render overnight, but I had to re-render something this morning and just happened to note the times of the previous render and the new one when I came back to it.
Good to know