Shadowcatcher bugs: noise and broken Bump spinner

[cecofuli]

Hello,

with v5.0, I see a lot of noise in the Composite version (In the Beauty pass, Alpha is fine) generate with the ShadowCatcherMtl (black background) even after 10 minutes (simple car sits on a plane).
If Adaptivity is disabled, the noise is gone after 3-4 minute.
An HDRI (2K) is the only light source.

Also it seems the ShadowCatcherMtl  bump spinner doesn't work.

Can you confirm?

[GeorgeK]

Hello,

with v5.0, I see a lot of noise in the Composite version (In the Beauty pass, Alpha is fine) generate with the ShadowCatcherMtl (black background) even after 10 minutes (simple car sits on a plane).
If Adaptivity is disabled, the noise is gone after 3-4 minute.
An HDRI (2K) is the only light source.

Also it seems the ShadowCatcherMtl  bump spinner doesn't work.

Can you confirm?

This is for C4D correct?

[cecofuli]

No, it's Max.

I think that there is a problem in 3ds Max the Adaptivity engine.
It's like it ignores the extremely dark areas.
The white screenshot is the coposite version in After effect.
When Adaptivity is disabled, as you see, the noise disapperars.
Marcin has already my sample scene.

See you  =)

[maru]

I checked this, and here are my results:


My tests were rendered in Max, saved to 32-bit EXR, then composed in Fusion.
Beauty and alpha, then checked with black background, cyan background, and the actual HDRI background.
In all cases, the result with adaptivity enabled is better, or the difference is negligible.
Also, without adaptivity, other areas are getting more noisy - such as reflections in glossy objects.
So to me it seems that everything is working fine - adaptivity helps focus samples where they are most needed, so yes, the dark part of the shadowcatcher will become noisy, but:
- it doesn't matter, since we won't see those areas anyway
- you never place shadowcatcher objects against a fully black or fully white background (however in my examples it didn't matter anyway)

I am waiting for some more specific information how this could be reproduced.

I have some images, but I am not sure if I can share them (Francesco - can you please confirm?).

Looking at the bump spinner issue now...
Update: the bump spinner seems to work fine, too. Waiting for further instructions.