Eevee SSR quality regression in 2.91 alpha #81105

New Issue

Jon Henry M. Faltis 9077149 · 2020-09-23T21:59:07+02:00

2020-09-23 21:59:07 +02:00

System Information
Graphics card: GeForce GTX 1060 6GB/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 441.66

Blender Version
Broken: version: 2.91.0 Alpha, branch: master, commit date: 2020-09-22 18:36, hash: 358a8e00bd
Worked: 2.90
Behavior changed in da741013a1

Short description of error
Screen space reflections have visible banding noise pattern, especially noticable on high roughness materials that's not apparent in 2.90.

Exact steps for others to reproduce the error
Open the added blend file in 2.90 and 2.91 and switch to rendered mode.

2.91_SSR.blend

**System Information** Graphics card: GeForce GTX 1060 6GB/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 441.66 **Blender Version** Broken: version: 2.91.0 Alpha, branch: master, commit date: 2020-09-22 18:36, hash: `358a8e00bd` Worked: 2.90 Behavior changed in da741013a1 **Short description of error** Screen space reflections have visible banding noise pattern, especially noticable on high roughness materials that's not apparent in 2.90. ![SSR_Comparision.jpg](https://archive.blender.org/developer/F8912831/SSR_Comparision.jpg) **Exact steps for others to reproduce the error** Open the added blend file in 2.90 and 2.91 and switch to rendered mode. [2.91_SSR.blend](https://archive.blender.org/developer/F8912829/2.91_SSR.blend)

Jon Henry M. Faltis 9077149 commented

2020-09-23 21:59:07 +02:00

Added subscriber: @geocentric_wage

blender-admin commented

2020-09-23 21:59:07 +02:00

#81615 was marked as duplicate of this issue

Germano Cavalcante commented

2020-09-25 21:32:16 +02:00

Added subscriber: @mano-wii

Germano Cavalcante commented

2020-09-25 21:32:16 +02:00

You can confirm the result differently.
But it is not as strange as the one shown in the description.

Perhaps it is a problem only with Nvidia.

You can confirm the result differently. But it is not as strange as the one shown in the description. ![image.png](https://archive.blender.org/developer/F8921457/image.png) Perhaps it is a problem only with Nvidia.

Jon Henry M. Faltis 9077149 commented

2020-09-29 17:45:30 +02:00

I don't have a AMD card to test with, but same issue is present on a intel HD 4000.

I don't have a AMD card to test with, but same issue is present on a intel HD 4000. ![Clipboard01.jpg](https://archive.blender.org/developer/F8936554/Clipboard01.jpg)

Richard Antalik commented

2020-09-30 13:47:06 +02:00

Added subscribers: @lichtwerk, @iss

Richard Antalik commented

2020-09-30 13:47:06 +02:00

I don't see this dark bands either. @lichtwerk can you check?

Philipp Oeser commented

2020-10-14 16:55:32 +02:00

Changed status from 'Needs Triage' to: 'Confirmed'

Philipp Oeser commented

2020-10-14 16:55:32 +02:00

Added subscriber: @fclem

Philipp Oeser commented

2020-10-14 16:55:32 +02:00

I can see those as well.
Related to Max Roughness (even though it can happen at default 0.5 as well), behavior changed in da741013a1
You can see them prior to above commit as well, but they resolve much nicer?

Not sure how to classify CC @fclem?

I can see those as well. Related to `Max Roughness` (even though it can happen at default 0.5 as well), behavior changed in da741013a1 You can see them prior to above commit as well, but they resolve much nicer? Not sure how to classify CC @fclem?

Philipp Oeser commented

2020-10-14 17:18:48 +02:00

Added subscribers: @deadpin, @Alaska

Philipp Oeser commented

2020-10-14 17:22:53 +02:00

Dared calling this a bug and since this is in final renders, will even dare setting as High prio (@fclem, please correct me if I am wrong)

blender-admin commented

2020-10-20 22:06:33 +02:00

This issue was referenced by b55c44e3ed

This issue was referenced by b55c44e3eda0165b67b1284336eaedc02198844e

Clément Foucault commented

2020-10-20 22:07:06 +02:00

Changed status from 'Confirmed' to: 'Resolved'

Clément Foucault closed this issue

2020-10-20 22:07:06 +02:00

Clément Foucault self-assigned this 2020-10-20 22:07:06 +02:00

Clément Foucault commented

2020-10-21 23:25:59 +02:00

With the changes comming in 27137c479c and 0cbe6387e9 the SSR are even more robust than in 2.90.

With the changes comming in 27137c479c and 0cbe6387e9 the SSR are even more robust than in 2.90. ![Capture d’écran du 2020-10-21 23-05-05.png](https://archive.blender.org/developer/F9029400/Capture_d_écran_du_2020-10-21_23-05-05.png)

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Eevee SSR quality regression in 2.91 alpha #81105