Optix Denoising seems not work properly in Blender 3 #93040

Closed
opened 2021-11-12 17:49:42 +01:00 by Roger · 8 comments

System Information
Operating system: Windows-10-10.0.19041-SP0 64 Bits
Graphics card: NVIDIA GeForce RTX 3070 Laptop GPU/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 472.47

Blender Version
Broken: version: 3.0.0 Beta, branch: master, commit date: 2021-11-11 18:49, hash: bd734cc441
Worked: version: 2.93.5

Short description of error
Optix in Blender 3.0.0 seems not work properly with the input passes "Albedo" or "Albedo+Normal" selected.
Here is a image I made to show the difference.
optix.png
Since the input passes settings are not excatly the same between 2.93.5 and 3.0.0, I am not sure if this issue has something to do with the setting diffrence.
As you can see, when input passes are set to "color" in 2.93.5 and "none" in 3.0.0, the render results are both kinda good in spite of the slightly diffrence in color.
And with Albedo joined the passes, the 3.0 result image has way much more noise than the 2.93.5 one do. And there are some artifacts near the edge of the image.
And with input passes set to Albedo+Normal, both 2 images have a bit more noise than they do before, but the 3.0 result is more noisier, and still has slight artifacts near the edge. What's more, The 3.0 denosied image looks like as nosiy as it does before denoising.
I tried the 3.1 version and get the same result.

Maybe Optix works differently in Blender 3.0 and cause the noise issue, I don't know.
But I think the artifacts thing is surely a bug.

Exact steps for others to reproduce the error
OptixTest.blend
I have the test file uploaded here.
Just rendered it with different Optix settings in Blender 3.0.

**System Information** Operating system: Windows-10-10.0.19041-SP0 64 Bits Graphics card: NVIDIA GeForce RTX 3070 Laptop GPU/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 472.47 **Blender Version** Broken: version: 3.0.0 Beta, branch: master, commit date: 2021-11-11 18:49, hash: `bd734cc441` Worked: version: 2.93.5 **Short description of error** Optix in Blender 3.0.0 seems not work properly with the input passes "Albedo" or "Albedo+Normal" selected. Here is a image I made to show the difference. ![optix.png](https://archive.blender.org/developer/F11796903/optix.png) Since the input passes settings are not excatly the same between 2.93.5 and 3.0.0, I am not sure if this issue has something to do with the setting diffrence. As you can see, when input passes are set to "color" in 2.93.5 and "none" in 3.0.0, the render results are both kinda good in spite of the slightly diffrence in color. And with Albedo joined the passes, the 3.0 result image has way much more noise than the 2.93.5 one do. And there are some artifacts near the edge of the image. And with input passes set to Albedo+Normal, both 2 images have a bit more noise than they do before, but the 3.0 result is more noisier, and still has slight artifacts near the edge. What's more, The 3.0 denosied image looks like as nosiy as it does before denoising. I tried the 3.1 version and get the same result. Maybe Optix works differently in Blender 3.0 and cause the noise issue, I don't know. But I think the artifacts thing is surely a bug. **Exact steps for others to reproduce the error** [OptixTest.blend](https://archive.blender.org/developer/F11796948/OptixTest.blend) I have the test file uploaded here. Just rendered it with different Optix settings in Blender 3.0.
Author

Added subscriber: @Luo_Jie

Added subscriber: @Luo_Jie
Member

Added subscriber: @Alaska

Added subscriber: @Alaska
Member

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

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

There was a fix made for artifacts like these with 9d0d4b8601. If you're able to test an updated build of Blender you maybe notice the issues have been resolved. If not, then the report can remain open.

Latest Blender builds: https://builder.blender.org/

There was a fix made for artifacts like these with 9d0d4b8601. If you're able to test an updated build of Blender you maybe notice the issues have been resolved. If not, then the report can remain open. Latest Blender builds: https://builder.blender.org/
Author

Hi, Alaska, thank you for your reply.
I was using the latest build (November 12) while creating this task.
There is no updated build for the 3.0.0 beta today so I assume it's not fixed by now.

Hi, Alaska, thank you for your reply. I was using the latest build (November 12) while creating this task. There is no updated build for the 3.0.0 beta today so I assume it's not fixed by now.
Member

In #93040#1253131, @Luo_Jie wrote:
There is no updated build for the 3.0.0 beta today so I assume it's not fixed by now.

You will have to wait for the build bot to generate a new build with the fix (assuming it's not in the currently available download)

> In #93040#1253131, @Luo_Jie wrote: > There is no updated build for the 3.0.0 beta today so I assume it's not fixed by now. You will have to wait for the build bot to generate a new build with the fix (assuming it's not in the currently available download)
Author

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

Changed status from 'Needs User Info' to: 'Resolved'
Roger closed this issue 2021-11-16 06:36:13 +01:00
Roger self-assigned this 2021-11-16 06:36:13 +01:00
Author

The issues have been resolved in today's released build for 3.0.0 beta.
Thank you!

The issues have been resolved in today's released build for 3.0.0 beta. Thank you!
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Reference: blender/blender#93040
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