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Rendering with Arnold in CINEMA 4D using the C4DtoA plug-in.
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C4DtoA Black dots with metalness

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Message 1 of 3
Sazarret
257 Views, 2 Replies

C4DtoA Black dots with metalness

4984-2019-10-25-08-03-08-arnold-ipr-window-v241-arnold.png4985-2019-10-25-08-26-15-arnold-ipr-window-v241-arnold.png

Hi, I´m getting random black dots (like negative butterflies) in the indirect_specular channel on the areas where metalness is set to 100%. Increasing the specular or AA sample counts does not have any effect on them, neither increasing the samples in the sky.

Also I´ve noticed that those areas are aliased in the final render.

Any sugestions please?

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Message 2 of 3
thiago.ize
in reply to: Sazarret

Hi, can you please provide an arnold log? Instructions are on the right side of this page.

Message 3 of 3
lee_griggs
in reply to: Sazarret

Any weird or extreme shader values being used?

Some similar posts here that may be of use.


Lee Griggs
Arnold rendering specialist
AUTODESK

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