Denoise + Pixel Size + Render Region = Artifacts in Viewport #96490

Closed
opened 2022-03-15 11:04:17 +01:00 by Paulius Mscichauskas · 12 comments

System Information
Operating system: Windows-10-10.0.19044-SP0 64 Bits
Graphics card:
NVIDIA GeForce RTX 2080 SUPER/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 472.84,
NVIDIA GTX 1080.
Optix is used.

Blender Version
Broken: version: 3.2.0 Alpha, branch: master, commit date: 2022-03-14 19:06, hash: fc259d4c30
Worked: Don't know.

Short description of error
When the pixel size for render preview is increased, (2X, or 4X), Render region is set, and viewport denoiser is turned on, the viewport render gives weird artifacts.
BUG.PNG

Exact steps for others to reproduce the error
Turn on render preview, and zoom in this file:
Pixl Size Denoise Render region.blend

**System Information** Operating system: Windows-10-10.0.19044-SP0 64 Bits Graphics card: NVIDIA GeForce RTX 2080 SUPER/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 472.84, NVIDIA GTX 1080. Optix is used. **Blender Version** Broken: version: 3.2.0 Alpha, branch: master, commit date: 2022-03-14 19:06, hash: `fc259d4c30` Worked: Don't know. **Short description of error** When the pixel size for render preview is increased, (2X, or 4X), Render region is set, and viewport denoiser is turned on, the viewport render gives weird artifacts. ![BUG.PNG](https://archive.blender.org/developer/F12928505/BUG.PNG) **Exact steps for others to reproduce the error** Turn on render preview, and zoom in this file: [Pixl Size Denoise Render region.blend](https://archive.blender.org/developer/F12928508/Pixl_Size_Denoise_Render_region.blend)

Added subscriber: @freemind

Added subscriber: @freemind
Contributor

Added subscriber: @Raimund58

Added subscriber: @Raimund58
Contributor

Changed status from 'Needs Triage' to: 'Needs User Info'

Changed status from 'Needs Triage' to: 'Needs User Info'
Contributor

Can not reproduce on a single GTX 1070.
Please update your GPU driver and report back.

Can not reproduce on a single GTX 1070. Please update your GPU driver and report back.

I noticed, that the artifacts do not appear if I'm only using one of the two GPU's.
The artifacts only appear if both GPUs are used.

I noticed, that the artifacts do not appear if I'm only using one of the two GPU's. The artifacts only appear if both GPUs are used.
Contributor

Since you have two different GPUs that alone calls for issues.
Also, please update your drivers.
And remember to restart the PC after you did.

Since you have two different GPUs that alone calls for issues. Also, please update your drivers. And remember to restart the PC after you did.

I have installed the latest NVIDIA studio driver, then restarted my computer.
That did not fix anything.

It also seems, that rendering with both GPU's might actually be slower, then just rendering with the RTX one? Will have to test that.

I have installed the latest NVIDIA studio driver, then restarted my computer. That did not fix anything. It also seems, that rendering with both GPU's might actually be slower, then just rendering with the RTX one? Will have to test that.

Tested it.
Rendering with both cards is faster overall.
But orbiting in render preview, with only the RTX card seems more responsive on the first few samples, with Optix denoising on...

Tested it. Rendering with both cards is faster overall. But orbiting in render preview, with only the RTX card seems more responsive on the first few samples, with Optix denoising on...

Added subscriber: @ThomasDinges

Added subscriber: @ThomasDinges

Is this still an issue for you in Blender 3.4?

Is this still an issue for you in Blender 3.4?
Member

Is this still an issue for you in Blender 3.6?

@freemind hi, any update on this?

> Is this still an issue for you in Blender 3.6? @freemind hi, any update on this?

No activity for more than a week. As per the tracker policy we assume the issue is gone and can be closed.

Thanks again for the report. If the problem persists please open a new report with the required information.

No activity for more than a week. As per the tracker policy we assume the issue is gone and can be closed. Thanks again for the report. If the problem persists please open a new report with the required information.
Blender Bot added
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labels 2023-10-06 17:01:48 +02:00
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Reference: blender/blender#96490
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