Eevee Viewport Shading Render Passes have problems once the saturation of the material becomes 1 #74063

New Issue

Zijun Zhou · 2020-02-21T06:24:39+01:00

Zijun Zhou commented

2020-02-21 06:24:39 +01:00

System Information
Operating system: Windows-10-10.0.18362-SP0 64 Bits
Graphics card: GeForce MX130/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 442.19

Blender Version
Broken: version: 2.82 (sub 7), branch: master, commit date: 2020-02-12 16:20, hash: 77d23b0bd7
Worked: (optional)

Short description of error
Once the saturation of the base color in the Principled BSDF reach 1, the color will remain in the "Diffuse Direct/ Indirect", "Glossy Direct/Indirect" (if the metalic value is not 0). If you enable those passes in "Render Layer Properties" Tab, and hit render, and go to the compositor, you can see these passes in the final render is actually pure white.

Exact steps for others to reproduce the error
Based on the attched .blend file, which is a cube and a plane with a red default Principled BSDF Material. And the Viewport Shading Render Passes is currently set to "Diffuse Direct".

Toggle renderded view, since it is currently set to "Diffuse Direct", you should normally see a white cube and a white plane, but you only see them being red.
In the Shader Editor down below, change the saturation of the base color to any value other than 1, you can see the two becomes white.
Turn the saturation back to 1. I have already enabled the passes in "Render Layer Properties" tab, so you only need to hit render image.
After rendering, go to the compositor, you can see the "Diffuse Direct" pass is linked to a viewer node, so you can see the pass in the background. The pass displays a white cube and a white plane.

Viewport Passes Saturation Bug.blend

**System Information** Operating system: Windows-10-10.0.18362-SP0 64 Bits Graphics card: GeForce MX130/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 442.19 **Blender Version** Broken: version: 2.82 (sub 7), branch: master, commit date: 2020-02-12 16:20, hash: `77d23b0bd7` Worked: (optional) **Short description of error** Once the saturation of the base color in the Principled BSDF reach 1, the color will remain in the "Diffuse Direct/ Indirect", "Glossy Direct/Indirect" (if the metalic value is not 0). If you enable those passes in "Render Layer Properties" Tab, and hit render, and go to the compositor, you can see these passes in the final render is actually pure white. **Exact steps for others to reproduce the error** Based on the attched .blend file, which is a cube and a plane with a red default Principled BSDF Material. And the Viewport Shading Render Passes is currently set to "Diffuse Direct". 1. Toggle renderded view, since it is currently set to "Diffuse Direct", you should normally see a white cube and a white plane, but you only see them being red. 2. In the Shader Editor down below, change the saturation of the base color to any value other than 1, you can see the two becomes white. 3. Turn the saturation back to 1. I have already enabled the passes in "Render Layer Properties" tab, so you only need to hit render image. 4. After rendering, go to the compositor, you can see the "Diffuse Direct" pass is linked to a viewer node, so you can see the pass in the background. The pass displays a white cube and a white plane. ![Viewport Passes Saturation Bug.001.png](https://archive.blender.org/developer/F8355977/Viewport_Passes_Saturation_Bug.001.png) ![Viewport Passes Saturation Bug.002.png](https://archive.blender.org/developer/F8355980/Viewport_Passes_Saturation_Bug.002.png) [Viewport Passes Saturation Bug.blend](https://archive.blender.org/developer/F8355983/Viewport_Passes_Saturation_Bug.blend)

Zijun Zhou commented

2020-02-21 06:24:39 +01:00

Added subscriber: @Eary

Zijun Zhou changed title from ~~Viewport Shading Render Passes have problems once the saturation of the material becomes 1~~ to Cycles Viewport Shading Render Passes have problems once the saturation of the material becomes 1

2020-02-21 06:38:38 +01:00

Richard Antalik commented

2020-02-24 13:08:57 +01:00

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

Zijun Zhou commented

2020-02-25 19:39:07 +01:00

I just tested the new Eevee Diffuse Light pass in 2.83 daily build. the same bug goes to Eevee as well, but worse, the rendered Eevee diffuse pass in the compositor is also red. Please check both Cycles and Eevee.

blender-admin commented

2020-02-25 19:51:20 +01:00

This issue was referenced by blender/cycles@1e1c765185

This issue was referenced by blender/cycles@1e1c765185e3fce2f45d1ae74187df9010cb9811

blender-admin commented

2020-02-25 19:51:20 +01:00

This issue was referenced by c05d83bc76

This issue was referenced by c05d83bc7632367f0a7e910d69d470ab89cf649d

Brecht Van Lommel commented

2020-02-25 19:52:41 +01:00

Changed status from 'Confirmed' to: 'Resolved'

Brecht Van Lommel closed this issue

2020-02-25 19:52:41 +01:00

Brecht Van Lommel self-assigned this 2020-02-25 19:52:41 +01:00

Brecht Van Lommel changed title from ~~Cycles Viewport Shading Render Passes have problems once the saturation of the material becomes 1~~ to Eevee Viewport Shading Render Passes have problems once the saturation of the material becomes 1

2020-02-25 19:53:09 +01:00

Brecht Van Lommel removed their assignment 2020-02-25 19:53:09 +01:00

Brecht Van Lommel commented

2020-02-25 19:53:09 +01:00

Added subscriber: @brecht

Brecht Van Lommel commented

2020-02-25 19:53:09 +01:00

Changed status from 'Resolved' to: 'Confirmed'

Brecht Van Lommel reopened this issue

2020-02-25 19:53:09 +01:00

Brecht Van Lommel commented

2020-02-25 19:54:50 +01:00

Added subscribers: @fclem, @Jeroen-Bakker

Brecht Van Lommel commented

2020-02-25 19:54:50 +01:00

@Jeroen-Bakker, @fclem, check safe_divide_even_color in Cycles for how to divide out the color in a way that keeps the cube gray.

@Jeroen-Bakker, @fclem, check `safe_divide_even_color` in Cycles for how to divide out the color in a way that keeps the cube gray.

Jeroen Bakker self-assigned this 2020-02-27 08:29:08 +01:00

blender-admin commented

2020-02-27 08:55:49 +01:00

This issue was referenced by 50f9c08979

This issue was referenced by 50f9c08979bfd336616e31f3fc71a901e310db5b

Jeroen Bakker commented

2020-02-27 16:02:47 +01:00

Changed status from 'Confirmed' to: 'Resolved'

Jeroen Bakker closed this issue

2020-02-27 16:02:47 +01:00

Zijun Zhou commented

2020-02-27 19:26:44 +01:00

Oh it's fixed now? Cool! By the way I discovered today that the "sheen" value in the Principled BSDF also affects the result, this is probably not a bug but I still would like to know why. Could anyone expain that for me?

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Eevee Viewport Shading Render Passes have problems once the saturation of the material becomes 1 #74063