Materials turn black or white in Eevee LookDev/Render view if there is a 2nd 3D viewport. #60550

New Issue

Demeter Dzadik · 2019-01-16T01:12:23+01:00

Demeter Dzadik commented

2019-01-16 01:12:23 +01:00

System Information
Operating system: Win10 v1607
Graphics card: GTX 1070

Blender Version
Broken: 2.80, 84c06e996a

Description
This is a pretty specific bug but I believe it can come up quite frequently, especially for animators who tend to use more than one 3D viewport.

I'll describe it in a giant if statement:

If you're using Eevee, AND
if there is more than one 3D Viewport, AND
if both 3D viewports are not set to either LookDev or Render, AND
you have materials that use Principled or Glossy BSDF, AND
a Normal Map node is connected to the normal input of those BSDFs, THEN
those materials will show up as either black or white, depending on Metalness.

Reproduction
Download this blend. Instructions included in a text object, but I'll put them here too:

Check that the cube renders as a regular default cube.
Switch one of the other panels to a second 3D Viewport
Re-enter rendered view on the original viewport. The cube turns white.
Changing the Metallic value to 1 makes the cube go black instead.
Changing the second viewport to LookDev or Render makes the problem go away.
Disconnecting the Normal Map node makes the problem go away.
eevee_render_black_or_white.blend

[FlusteredIdolizedChafer.webm](https://archive.blender.org/developer/F6300172/FlusteredIdolizedChafer.webm) **System Information** Operating system: Win10 v1607 Graphics card: GTX 1070 **Blender Version** Broken: 2.80, 84c06e996a7a **Description** This is a pretty specific bug but I believe it can come up quite frequently, especially for animators who tend to use more than one 3D viewport. I'll describe it in a giant if statement: - If you're using Eevee, AND - if there is more than one 3D Viewport, AND - if both 3D viewports are not set to either LookDev or Render, AND - you have materials that use Principled or Glossy BSDF, AND - a Normal Map node is connected to the normal input of those BSDFs, THEN - those materials will show up as either black or white, depending on Metalness. **Reproduction** Download this blend. Instructions included in a text object, but I'll put them here too: 1. Check that the cube renders as a regular default cube. 2. Switch one of the other panels to a second 3D Viewport 3. Re-enter rendered view on the original viewport. **The cube turns white.** 4. Changing the Metallic value to 1 makes the cube go black instead. 5. Changing the second viewport to LookDev or Render makes the problem go away. 6. Disconnecting the Normal Map node makes the problem go away. [eevee_render_black_or_white.blend](https://archive.blender.org/developer/F6300121/eevee_render_black_or_white.blend)

Demeter Dzadik commented

2019-01-16 01:12:23 +01:00

Added subscriber: @Mets

blender-admin commented

2019-01-16 01:12:23 +01:00

#61750 was marked as duplicate of this issue

blender-admin commented

2019-01-16 01:12:23 +01:00

#60698 was marked as duplicate of this issue

Sebastian Parborg commented

2019-01-16 01:21:34 +01:00

Added subscriber: @ZedDB

Clément Foucault was assigned by Sebastian Parborg

2019-01-16 01:21:34 +01:00

Sebastian Parborg commented

2019-01-16 01:21:34 +01:00

I had to toggle the viewport render mode from rendered to solid and back once (or change to shader values) to get this to trigger for the first time. After that I consistently got a black cube. It didn't matter what metallic was set to. And I also got black cube with the other shader node too.

Brecht Van Lommel commented

2019-02-01 17:24:43 +01:00

Added subscribers: @acoimbraf, @JacquesLucke

Brecht Van Lommel commented

2019-02-20 14:23:55 +01:00

Added subscriber: @andreymd87

Karlo commented

2019-03-03 00:36:23 +01:00

Added subscriber: @kpavicic

Brecht Van Lommel commented

2019-03-08 17:17:25 +01:00

Closed as duplicate of #61870

Brecht Van Lommel closed this issue

2019-03-08 17:17:25 +01:00

Brecht Van Lommel commented

2019-03-08 17:18:07 +01:00

Added subscriber: @brecht

Brecht Van Lommel commented

2019-03-08 17:18:07 +01:00

#61870#633095 explains how the multiple viewports issue is the same.

Matteo commented

2019-06-19 10:46:27 +02:00

Added subscriber: @TechTheGuy

Matteo commented

2019-06-19 10:46:27 +02:00

Hello guys.I have a problem with blackplasma rig v2 in eevee render engine :the skin turns black.What can i do?System:
Amd ryzen 7 2700
Gtx 1050 ti
8gb hyperxfury 2666

Hello guys.I have a problem with blackplasma rig v2 in eevee render engine :the skin turns black.What can i do?System: Amd ryzen 7 2700 Gtx 1050 ti 8gb hyperxfury 2666

Demeter Dzadik commented

2019-06-19 17:33:59 +02:00

Ask the author of the rig. Probably not a Blender bug.

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Materials turn black or white in Eevee LookDev/Render view if there is a 2nd 3D viewport. #60550