Artifacts on UV-Pass

[SundancePioneer]

Dear Octaners,

i just discovered a tiny issue with the UV AOV in Octane, which i could narrow down to the usage of a nearby Light.

My Scene is basically an animated Laptop/Notebook, i use the UV-Pass to be able to replace the Screen Content in Post.

Here are the issues:

- After rendering the AOVs and assembling them, i noticed this artifact in some frames:

These appear from some frames only and since they also appeared in the Live Viewer, i did some digging on where this might be coming from. I figured out that it appears only when a nearby area-light is active - this is what it looks like in C4D:

As soon as i disable the light, the artifacts go away, even though the area light is not intersecting with the geometry in any way. It doesn't matter where in the hierarchy the light is placed.

I need this light in my render for the Light AOVs and for Relighting - so just disabling it is not really an option. But maybe there is something else that i am missing?

Here are also my AOV settings for the info passes:

settings.jpg (25.48 KiB) Viewed 2544 times

Any help is much appreciated!

Here is the bug-related system information, in case it helps:
A. Windows 10 Pro - 10.0.19045 Build 19045
B. RTX 3080 + RTX 2080 Ti
C. 256 GB RAM
D. Nvidia Studio Driver 546.01
E. OctaneRender Standalone not installed
F. OctaneRender plugin version: 2023.1-[R2]
G. Cinema 4D 2024.0.2
H. see above
I. no related bugs in Log

[bepeg4d]

Hi,

Please save the project with assets, then share a link via Private Message, so we can check.

ciao,
Beppe

[SundancePioneer]

Thank you Beppe, i have sent the file via DM!

[bepeg4d]

Thanks for sharing the scene,

Please remove the installed c4doctane version and upgrade to 2023.1-R6 stable:
https://render.otoy.com/customerdownloa ... R6_win.rar

Please use 7zip to uncompress the .RAR archive, it is free:
https://www.7-zip.org/

I have renderd the full sequence without issues in 2023.1-R6:

NotebookACES_PASSES_UV_.mp4

(4.17 MiB) Downloaded 2332 times

ciao,
Beppe

[SundancePioneer]

Hi Beppe,

thanks a lot for checking this - just for me to fully understand:
Is this an issue that was fixed with the latest release, or did you make any adjustments in the scene?

Thanks and Best

Sundance

[bepeg4d]

Hi Sundance,

I didn't make any change to the scene, apart from rendering with 2023.1-R6 only the UV coordinate AOV, by setting the max samples to 1.

I think it has been fixed from 2023.1-R2 to R6, but I cannot tell you exactly when.

ciao,
Beppe