I have everything set up (I think) but OpenVDB volumes that I import do not get denoised. I changed the default cube to a volume domain and loaded a VDB file in (Disney cloud). I tried both the viewport denoise and the final render denoise (F12), but neither worked.
Here is the viewport view and settings:
Here are the settings for the final render:
And here are the results after choosing the denoised volume image from the passes menu:
Jason
[20.5] Volume denoise doesn't appear to work
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G. Host application version, including build number if available (i.e. 3ds Max 2016 Build 18.0)
Before posting a bug report, please check the following:
1. That the issue has not already been disclosed
2. That the issue is specific to this plugin, and not Octane in general (Try reproducing it in Standalone)
Bugs related to the Octane Engine itself should be posted into the Standalone Support sub-forum.
All bug reports should include the information below, along with a detailed description of the issue and steps to reproduce it.
A. Operating System, including version (i.e. Win 7, OSX 10.11.2, Ubuntu 14.04, etc.)
B. Graphics Card(s) model (i.e. GTX 580 - 3GB, TITAN, etc.)
C. RAM Capacity (i.e. 6 GB)
D. Nvidia driver version (i.e. 7.50, 7.5.22)
E. OctaneRender Standalone version, if installed (i.e. 2.24.2, 2.23, etc.)
F. OctaneRender plugin version (i.e. v2.25 - 2.21)
G. Host application version, including build number if available (i.e. 3ds Max 2016 Build 18.0)
It works for me with these settings:
CPU – i9 13900KF, 128GB RAM, GPU – RTX 4090
System – Windows 11
My Behance portfolio, Blender plugin FB support group
System – Windows 11
My Behance portfolio, Blender plugin FB support group
Looks like you unchecked "Denoise on completion" in Imager settings.
CPU – i9 13900KF, 128GB RAM, GPU – RTX 4090
System – Windows 11
My Behance portfolio, Blender plugin FB support group
System – Windows 11
My Behance portfolio, Blender plugin FB support group
Thanks J.C.
My confusion was that the "N" panel settings were only used for the preview and not for the final render (F12) in earlier versions. It's working now.
It's nice that you no longer have to specifically set the denoiser for volumes.
Jason
My confusion was that the "N" panel settings were only used for the preview and not for the final render (F12) in earlier versions. It's working now.

Jason
Linux Mint 21.3 x64 | Nvidia GTX 980 4GB (displays) RTX 2070 8GB| Intel I7 5820K 3.8 Ghz | 32Gb Memory | Nvidia Driver 535.171