C4DtoA Black dots with metalness

[Sazarret]

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?

[thiago.ize]

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

[lee_griggs]

Any weird or extreme shader values being used?

Some similar posts here that may be of use.