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Rendering with Arnold in CINEMA 4D using the C4DtoA plug-in.
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Portal Lights Blackout

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Message 1 of 3
Daniel_Mikolajcak
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Portal Lights Blackout

Hello,
I wonder if it would be possible to use portals and not have everything behind them black. Often times you have an interior shots with objects behind the windows. Portals in other render engines don't behave like this.

Thanks.6872-screenshot-2020-04-27-at-101125.png

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Message 2 of 3

Hi, thanks for posting this report. This may be a bug, so we're looking into it. I assume you have tried enabling the "interior_exterior" mode in the skydome light (however, in my tests I see a similar artifact to you, which is not resolved via that setting). I will keep you posted on progress.

Message 3 of 3

Hi Jamie,
thanks, this is already interior and exterior setting. If it was interior only, all of the outside building would be black.

For now I tricked it by copying portals and flipping them 180 degrees, works well so far.

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