Vertex Color doesn't show up (in Eevee using the Vertex Color shader node or in workbench vertex shading mode) #94898

New Issue

Laurent Boucher · 2022-01-14T10:43:56+01:00

Laurent Boucher commented

2022-01-14 10:43:56 +01:00

System Information
Operating system: Windows-10-10.0.22000-SP0 64 Bits
Graphics card: NVIDIA GeForce RTX 3080/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 511.09

Blender Version
Broken: version: 3.0.1 Release Candidate, branch: master, commit date: 2022-01-12 07:17, hash: aafbd74646
Worked: 2.93.7

The fail in Material Preview viewport shading mode as well as Eevee Rendered mode was caused by 03013d19d1
The fail in Solid viewport shading Vertex mode (both object mode and editmode) is probably not considered a "fail", see #83891 (Vertex Colors not displayed in object/edit/sculpt mode (if Sculpt Vertex Colors are enabled from Experimental))

Short description of error
If I create a simple shader using only vertex color input plugged in the surface output in 3.01 the result is black in Eevee., but works properly in 2.93.7

Exact steps for others to reproduce the error
VertexColorEevee.blend

open blender and enable Experimental > Sculpt Vertex Colors
open .blend
change Solid viewport shading mode to Vertex : no vertex colors
change to Material Preview viewport shading : black
change renderer to Eevee and go to rendered viewport : black

You can open this scene in both 2.93.7 and 3.01 and switch from Cycles to Eevee to see the difference

Thanks in advance ;)

**System Information** Operating system: Windows-10-10.0.22000-SP0 64 Bits Graphics card: NVIDIA GeForce RTX 3080/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 511.09 **Blender Version** Broken: version: 3.0.1 Release Candidate, branch: master, commit date: 2022-01-12 07:17, hash: `aafbd74646` Worked: 2.93.7 The fail in `Material Preview` viewport shading mode as well as Eevee `Rendered` mode was caused by 03013d19d1 The fail in `Solid` viewport shading `Vertex` mode (both object mode and editmode) is probably not considered a "fail", see #83891 (Vertex Colors not displayed in object/edit/sculpt mode (if Sculpt Vertex Colors are enabled from Experimental)) **Short description of error** If I create a simple shader using only vertex color input plugged in the surface output in 3.01 the result is black in Eevee., but works properly in 2.93.7 ![blender_8hpRCjEiIK.png](https://archive.blender.org/developer/F12805038/blender_8hpRCjEiIK.png) ![t5g1vKnHCW.png](https://archive.blender.org/developer/F12805036/t5g1vKnHCW.png) ![8crCpe3NtK.png](https://archive.blender.org/developer/F12805039/8crCpe3NtK.png) **Exact steps for others to reproduce the error** [VertexColorEevee.blend](https://archive.blender.org/developer/F12805045/VertexColorEevee.blend) - open blender and enable `Experimental` > `Sculpt Vertex Colors` - open .blend - change `Solid` viewport shading mode to `Vertex` : no vertex colors - change to `Material Preview` viewport shading : black - change renderer to Eevee and go to rendered viewport : black You can open this scene in both 2.93.7 and 3.01 and switch from Cycles to Eevee to see the difference Thanks in advance ;)

Laurent Boucher commented

2022-01-14 10:43:56 +01:00

Added subscriber: @Tilapiatsu

blender-admin commented

2022-01-14 10:43:56 +01:00

#96896 was marked as duplicate of this issue

blender-admin commented

2022-01-14 10:43:56 +01:00

#95638 was marked as duplicate of this issue

Philipp Oeser commented

2022-01-14 11:03:59 +01:00

Added subscriber: @lichtwerk

Philipp Oeser commented

2022-01-14 11:03:59 +01:00

Cannot reproduce here

**System Information**
Operating system: Linux-5.13.0-0.rc6.45.fc35.x86_64-x86_64-with-glibc2.34.9000 64 Bits
Graphics card: NVIDIA GeForce GTX 970M/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 495.44
version: 3.0.1 Release Candidate, branch: master, commit date: 2022-01-12 07:17, hash: `rBaafbd7464656`

Cannot reproduce here ``` **System Information** Operating system: Linux-5.13.0-0.rc6.45.fc35.x86_64-x86_64-with-glibc2.34.9000 64 Bits Graphics card: NVIDIA GeForce GTX 970M/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 495.44 version: 3.0.1 Release Candidate, branch: master, commit date: 2022-01-12 07:17, hash: `rBaafbd7464656` ```

Philipp Oeser commented

2022-01-14 11:05:04 +01:00

Could this be related to the driver version 511.09?
If possible: could you check with an older version?

Could this be related to the driver version 511.09? If possible: could you check with an older version?

Pratik Borhade commented

2022-01-14 11:18:02 +01:00

Added subscriber: @PratikPB2123

Pratik Borhade commented

2022-01-14 12:00:26 +01:00

Can not reproduce either on 3.0.1(aafbd7464656)

Graphics card: AMD Radeon(TM) 535 ATI Technologies Inc. 4.5.14831 Core Profile Context 21.5.2 27.20.21003.8013```

Can not reproduce either on 3.0.1(`aafbd7464656`) ![image.png](https://archive.blender.org/developer/F12805099/image.png) ```Operating system: Windows-10-10.0.19043-SP0 64 Bits Graphics card: AMD Radeon(TM) 535 ATI Technologies Inc. 4.5.14831 Core Profile Context 21.5.2 27.20.21003.8013```

Evan Wilson commented

2022-01-15 03:16:57 +01:00

Added subscriber: @EAW

Evan Wilson commented

2022-01-15 03:16:57 +01:00

If the vertex colors came from Geometry Nodes, this is a duplicate of #93179 (Eevee Attribute Rendering Has Some Left Out Nodes Comparing with Cycles).

The other possibility I can think of is that Sculpt colors are turned on under Experimental features, but those don’t ship in release builds, right?

If the vertex colors came from Geometry Nodes, this is a duplicate of #93179 (Eevee Attribute Rendering Has Some Left Out Nodes Comparing with Cycles). The other possibility I can think of is that Sculpt colors are turned on under Experimental features, but those don’t ship in release builds, right?

Laurent Boucher commented

2022-01-15 15:02:37 +01:00

Thanks @PratikPB2123 and @EAW for investigation.
I have retired on another setup, Other CPU, GPU, OS and I got exactly the same result unfortunately :(

System Information
Operating system: Windows-10-10.0.19043-SP0 64 Bits
Graphics card: GeForce GTX 760/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 456.71
Driver version : 320.49

I've also disable all the experimental features .

@EAW : The vertex color don't come from Geometry Nodes, but directly from few brush strokes made in the Vertex Paint mode.

Thanks @PratikPB2123 and @EAW for investigation. I have retired on another setup, Other CPU, GPU, OS and I got exactly the same result unfortunately :( **System Information** Operating system: Windows-10-10.0.19043-SP0 64 Bits Graphics card: GeForce GTX 760/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 456.71 Driver version : 320.49 I've also disable all the experimental features . @EAW : The vertex color don't come from Geometry Nodes, but directly from few brush strokes made in the Vertex Paint mode.

Laurent Boucher commented

2022-01-15 22:24:01 +01:00

I've discover something else which I'm not sure is related to that, but Vertex color doesn't show up in Workbench when trying to show the data on 3.0, 3.01, but works fine in 2.93.7 or 3.1 alpha

I've discover something else which I'm not sure is related to that, but Vertex color doesn't show up in Workbench when trying to show the data on 3.0, 3.01, but works fine in 2.93.7 or 3.1 alpha ![image.png](https://archive.blender.org/developer/F12806555/image.png) ![image.png](https://archive.blender.org/developer/F12806557/image.png)

Philipp Oeser commented

2022-01-20 12:55:56 +01:00

In #94898#1288694, @Tilapiatsu wrote:
I've discover something else which I'm not sure is related to that, but Vertex color doesn't show up in Workbench when trying to show the data on 3.0, 3.01, but works fine in 2.93.7 or 3.1 alpha

This is all fine for me in 3.0 and 3.0.1 release candidate as well...

In #94898#1288573, @Tilapiatsu wrote:
Graphics card: GeForce GTX 760/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 456.71
Driver version : 320.49

? is it 456.71 or 320.49?

> In #94898#1288694, @Tilapiatsu wrote: > I've discover something else which I'm not sure is related to that, but Vertex color doesn't show up in Workbench when trying to show the data on 3.0, 3.01, but works fine in 2.93.7 or 3.1 alpha > > ![image.png](https://archive.blender.org/developer/F12806555/image.png) > > ![image.png](https://archive.blender.org/developer/F12806557/image.png) This is all fine for me in 3.0 and 3.0.1 release candidate as well... > In #94898#1288573, @Tilapiatsu wrote: > Graphics card: GeForce GTX 760/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 456.71 > Driver version : 320.49 ? is it 456.71 or 320.49?

Philipp Oeser commented

2022-01-20 12:57:07 +01:00

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

Laurent Boucher commented

2022-01-20 22:42:46 +01:00

My bad, It was really confusing indeed.
I have tried with both versions. I've tried first with 456.71, Then I have downgraded to 320.49 as you have suggested

My bad, It was really confusing indeed. I have tried with both versions. I've tried first with 456.71, Then I have downgraded to 320.49 as you have suggested ![image.png](https://archive.blender.org/developer/F12813562/image.png)

Laurent Boucher commented

2022-01-21 00:43:44 +01:00

I think I have found where the issue come from.

I have reverted my preference to Factory Default and now it works correctly. I think I have enable the "use_sculpt_vertex_colors" in the experimental feature before and it stayed enabled in my userpref.

Now the option is not visible anymore in the Preference menu but you can still modify its value in Python with :

bpy.context.preferences.experimental.use_sculpt_vertex_colors = True

My issue is now solved but I still think something have to be done to avoid this.

What do you think @lichtwerk ?

I think I have found where the issue come from. I have reverted my preference to Factory Default and now it works correctly. I think I have enable the "use_sculpt_vertex_colors" in the experimental feature before and it stayed enabled in my userpref. Now the option is not visible anymore in the Preference menu but you can still modify its value in Python with : ``` bpy.context.preferences.experimental.use_sculpt_vertex_colors = True ``` My issue is now solved but I still think something have to be done to avoid this. What do you think @lichtwerk ?

Philipp Oeser commented

2022-01-21 05:12:45 +01:00

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

Philipp Oeser commented

2022-01-21 09:29:11 +01:00

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

Philipp Oeser commented

2022-01-21 09:29:11 +01:00

Ah, that again :/
Can confirm now.
This has had a long history (see studio/blender-studio#67437, #78225, #78369), will check when this broke yet again.

Ah, that again :/ Can confirm now. This has had a long history (see studio/blender-studio#67437, #78225, #78369), will check when this broke yet again.

Philipp Oeser changed title from ~~Vertex Color doesn't show up in Eevee using the Vertex Color shader node~~ to Vertex Color doesn't show up (in Eevee using the Vertex Color shader node or in workbench vertex shading mode)

2022-01-21 09:35:09 +01:00

Philipp Oeser commented

2022-01-21 10:38:19 +01:00

Added subscriber: @kevindietrich

Philipp Oeser commented

2022-01-21 10:38:19 +01:00

The fail in Material Preview viewport shading mode as well as Eevee Rendered mode was caused by 03013d19d1
The fail in Solid viewport shading Vertex mode (both object mode and editmode) is probably not considered a "fail", see #83891 (Vertex Colors not displayed in object/edit/sculpt mode (if Sculpt Vertex Colors are enabled from Experimental))

CC @kevindietrich , will dare setting this to High prio, I know this is somewhat of a moving target, feel free to lower prio again.

The fail in `Material Preview` viewport shading mode as well as Eevee `Rendered` mode was caused by 03013d19d1 The fail in `Solid` viewport shading `Vertex` mode (both object mode and editmode) is probably not considered a "fail", see #83891 (Vertex Colors not displayed in object/edit/sculpt mode (if Sculpt Vertex Colors are enabled from Experimental)) CC @kevindietrich , will dare setting this to High prio, I know this is somewhat of a moving target, feel free to lower prio again.

Laurent Boucher commented

2022-01-21 11:49:03 +01:00

Thanks for the followup @lichtwerk