Oidn fails on very light shadows

[Dade916]

We have received some report of Oidn failing to denoise image area with very light shadow. It is like if there is a threshold under which noise is not removed.

This is an example of the problem, the normal rendering:

and the is the Oidn output:

The very end of the monkey shadow is not denoised, there is a quite sharp cutoff.

This is a .zip with the .png/.exr rendering images, albedo and normal AOVs to replicate the problem:

img.zip

This is the thread in our forum where the problem is discussed: https://forums.luxcorerender.org/viewtopic.php?f=4&t=1122

From the above forum thread, another example of the problem in a real world scene can be seen here: https://forums.luxcorerender.org/viewtopic.php?f=4&t=1122&start=10#p13302

[atafra]

Thanks for reporting this issue! We are currently preparing a new release, which will fix this. This is the produced output with the new version (not final yet):

[Dade916]

Thanks Attila, I guess we can close this.