Optix Cycles viewport denoising suddenly stops working #114781

New Issue

Matteo Scopel · 2023-11-13T11:04:03+01:00

Matteo Scopel commented

2023-11-13 11:04:03 +01:00

System Information
Operating system: Windows-10-10.0.22621-SP0 64 Bits
Graphics card: NVIDIA GeForce RTX 2060/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 546.01

Blender Version
Broken: version: 4.0.0 Release Candidate, branch: blender-v4.0-release, commit date: 2023-11-10 13:29, hash: c688b038473a
Worked: 3.6

Short description of error
When using Blender 4.0 RC with viewport denoising enabled (Optix backend), sometimes the denoising stops working. A restart of Blender is required to make viewport denoising work again.

Exact steps for others to reproduce the error

open a Blender scene
operate normally
switch back and forth from Solid to Rendered view
eventually, denoising stops working on my end

It happens on every file and I can't find a specific trigger for it. Switching the viewport denoising backend from Optix to OpenImageDenoise makes viewport denoising work again. Switching again to Optix makes it not work anymore. Restarting Blendermakes denoising work again, until the problem returns.

**System Information** Operating system: Windows-10-10.0.22621-SP0 64 Bits Graphics card: NVIDIA GeForce RTX 2060/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 546.01 **Blender Version** Broken: version: 4.0.0 Release Candidate, branch: blender-v4.0-release, commit date: 2023-11-10 13:29, hash: `c688b038473a` Worked: 3.6 **Short description of error** When using Blender 4.0 RC with viewport denoising enabled (Optix backend), sometimes the denoising stops working. A restart of Blender is required to make viewport denoising work again. **Exact steps for others to reproduce the error** - open a Blender scene - operate normally - switch back and forth from Solid to Rendered view - eventually, denoising stops working on my end It happens on every file and I can't find a specific trigger for it. Switching the viewport denoising backend from Optix to OpenImageDenoise makes viewport denoising work again. Switching again to Optix makes it not work anymore. Restarting Blendermakes denoising work again, until the problem returns.

Matteo Scopel added the

labels 2023-11-13 11:04:04 +01:00

Pratik Borhade commented

2023-11-13 11:11:03 +01:00

Hi, is that with CUDA or OptiX render? We're tracking similar bug at #114468

Pratik Borhade added

Status

Needs Information from User

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Status

Needs Triage

labels 2023-11-13 11:11:10 +01:00

Matteo Scopel commented

2023-11-13 11:55:04 +01:00

It occurs with OptiX.
To me, it does not happen with multiple frames, but simply with viewport navigation of a scene, without any frame switch.

It occurs with OptiX. To me, it does not happen with multiple frames, but simply with viewport navigation of a scene, without any frame switch.

Pratik Borhade commented

2023-11-14 09:38:27 +01:00

Thanks. Can confirm with both CUDA and OptiX. Like other denoiser bugs, I suspect culprit is same here: newer NVIDIA drivers

Pratik Borhade added

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Needs Information from User

labels 2023-11-14 09:38:40 +01:00

Jesse Yurkovich referenced this issue

2023-11-16 22:18:21 +01:00

Window denoising can be intermittently ineffective when using a GPU. #114996

Jesse Yurkovich commented

2024-03-03 05:03:04 +01:00

This should be fixed by updating NVIDIA drivers to 546.33 or above. See comment: #114548 (comment)

This should be fixed by updating NVIDIA drivers to 546.33 or above. See comment: https://projects.blender.org/blender/blender/issues/114548#issuecomment-1083287

Jesse Yurkovich closed this issue

2024-03-03 05:03:08 +01:00

Blender Bot added

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labels 2024-03-03 05:03:11 +01:00

Jesse Yurkovich added

Status

Resolved