denoiser and motion blur geometry samples

[Mnietek2707]

Below comparison - difference is only in geometry samples of motion blur (2 or 3).
When geo samples is 3 I get warnigs about Embree and multisegment motion blur.
Maybe regular raycaster and denoiser don’t like each other?

[vlado]

Is there any (invisible) geometry at that place in the image? If you look at the defocusAmount render element, what does it look like?

Best regards,
Vlado

[Mnietek2707]

Here is defocusAmount element. Bush in the background was made from several VrayProxies.
Some of them are denoised improperly.
This is random - below defocus element from the same frame rendered 2 times.

[vlado]

I see; I will need some way to reproduce that here so that I can fix it. If you can get me that part of the scene to vlado@chaosgroup.com it will be super helpful to fix the issue.

Best regards,
Vlado

[Mnietek2707]

I’ve sent an e-mail.