Sculpt mode remesh broke shading #93434

Closed
opened 2021-11-27 18:17:26 +01:00 by Donovane · 18 comments

System Information
Operating system: WIN 11 X64
Graphics card: RTX 260 6GB

Blender Version
Broken: 2.93.6

Description
Artifacts appears in Sculpting workspace if plane is remeshed
broken.png

But when you use the layout Tab is fully work in object mode and edit mode or scultp mode :
edit mode.png edit mode on layout tab : Works (shading no broken)
work on sculpt mode on laout.png sculpt mode on layout tab : Works (shading no broken)

but still broken on sculpt mode tab (same in edit mode in tab sculpting) broken 2.png:

Steps to Reproduce

  • Open default scene
  • Delete cube and add Plane
  • Switch active workspace from layout to Sculpting
  • Remesh
    Blend file : broke sculpt mode.blend
**System Information** Operating system: WIN 11 X64 Graphics card: RTX 260 6GB **Blender Version** Broken: 2.93.6 **Description** Artifacts appears in Sculpting workspace if plane is remeshed ![broken.png](https://archive.blender.org/developer/F12449404/broken.png) But when you use the layout Tab is fully work in object mode and edit mode or scultp mode : ![edit mode.png](https://archive.blender.org/developer/F12449789/edit_mode.png) edit mode on layout tab : Works (shading no broken) ![work on sculpt mode on laout.png](https://archive.blender.org/developer/F12449862/work_on_sculpt_mode_on_laout.png) sculpt mode on layout tab : Works (shading no broken) but still broken on sculpt mode tab (same in edit mode in tab sculpting) ![broken 2.png](https://archive.blender.org/developer/F12450089/broken_2.png): **Steps to Reproduce** - Open default scene - Delete cube and add Plane - Switch active workspace from layout to Sculpting - Remesh Blend file : [broke sculpt mode.blend](https://archive.blender.org/developer/F12453341/broke_sculpt_mode.blend)
Author

Added subscriber: @dodo-2

Added subscriber: @dodo-2
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Added subscriber: @PratikPB2123

Added subscriber: @PratikPB2123
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Hi, thanks for the report. Can not reproduce on 2.93.7 (4ec6cc412d7f)

Not sure but I suspect this driver issue. Could you please try again with recent driver version: https://docs.blender.org/manual/en/dev/troubleshooting/gpu/windows/nvidia.html

Also, please add system info generated from the Help menu: {nav Help > Save System Info}

Hi, thanks for the report. Can not reproduce on 2.93.7 (`4ec6cc412d7f`) Not sure but I suspect this driver issue. Could you please try again with recent driver version: https://docs.blender.org/manual/en/dev/troubleshooting/gpu/windows/nvidia.html Also, please add system info generated from the Help menu: {nav Help > Save System Info}
Member

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

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

My drivers is the latest version i have no update i'm use the studio driver also i have tried with game ready driver i have the same result shading broken.
Studio driver: 427.47 NVIDIA

Config file save : system-info.txt

Also i have tried with 2.93.7 candidate (studio driver and game ready driver both are same problem, the shading was broken only in sculpt mode tab) : November 27, 02:23:18 - 63aa10802b - zip - 211.90MB
And is exactly the same result in 2.93.7
297.png

The problem come when your put the value 0.01 or any other value in remesh voxel size

My drivers is the latest version i have no update i'm use the studio driver also i have tried with game ready driver i have the same result shading broken. Studio driver: 427.47 NVIDIA Config file save : [system-info.txt](https://archive.blender.org/developer/F12482638/system-info.txt) Also i have tried with 2.93.7 candidate (studio driver and game ready driver both are same problem, the shading was broken only in sculpt mode tab) : November 27, 02:23:18 - 63aa10802b32 - zip - 211.90MB And is exactly the same result in 2.93.7 ![297.png](https://archive.blender.org/developer/F12483257/297.png) The problem come when your put the value 0.01 or any other value in remesh voxel size
Author

I just want to say the shading was broken only on the sculpt mode tab ! Not on the Layout tab ! Remind you this !

but the bug come when your use a plane always and sometimes on other all meshs

I just want to say the shading was broken only on the sculpt mode tab ! Not on the Layout tab ! Remind you this ! but the bug come when your use a plane always and sometimes on other all meshs
Author

This comment was removed by @dodo-2

*This comment was removed by @dodo-2*
Author

Video report is most simply for understand, but the bug come when your use a plane first :

2021-11-27 22-19-26.mkv

Video report is most simply for understand, but the bug come when your use a plane first : [2021-11-27 22-19-26.mkv](https://archive.blender.org/developer/F12489487/2021-11-27_22-19-26.mkv)
Author

Added subscriber: @pratik-2

Added subscriber: @pratik-2
Author

This comment was removed by @dodo-2

*This comment was removed by @dodo-2*
Author

@PratikPB2123
ANy update ?

@PratikPB2123 ANy update ?
Member

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

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

shading was broken only on the sculpt mode tab ! Not on the Layout tab

Hi @dodo-2 , I can reproduce now. Thanks for clarifying.

I think I have seen similar report before but couldn't find at the moment. Confirming.

> shading was broken only on the sculpt mode tab ! Not on the Layout tab Hi @dodo-2 , I can reproduce now. Thanks for clarifying. I think I have seen similar report before but couldn't find at the moment. Confirming.
Author

In #93434#1262590, @PratikPB2123 wrote:

shading was broken only on the sculpt mode tab ! Not on the Layout tab

Hi @dodo-2 , I can reproduce now. Thanks for clarifying.

I think I have seen similar report before but couldn't find at the moment. Confirming.

No problem happy for help the the Blender dev :) if i found anything don't worry i report it :)

> In #93434#1262590, @PratikPB2123 wrote: >> shading was broken only on the sculpt mode tab ! Not on the Layout tab > Hi @dodo-2 , I can reproduce now. Thanks for clarifying. > > I think I have seen similar report before but couldn't find at the moment. Confirming. No problem happy for help the the Blender dev :) if i found anything don't worry i report it :)
Member

Removed subscriber: @pratik-2

Removed subscriber: @pratik-2
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Added subscriber: @JulienKaspar

Added subscriber: @JulienKaspar
Member

Changed status from 'Confirmed' to: 'Archived'

Changed status from 'Confirmed' to: 'Archived'
Member

I don't think this is a bug. This is just z-fighting that is only visible in the sculpting workspace because that workspace is using matcap shading. The other workspaces are using studio shading which doesn't highlight the inverted normals that badly. So the same effect is there, just not as visible.

The voxel remesher is also not made for meshes that are thinner than the voxel size or open geometry. It needs to be a closed mesh with a big enough volume.

I don't think this is a bug. This is just z-fighting that is only visible in the sculpting workspace because that workspace is using matcap shading. The other workspaces are using studio shading which doesn't highlight the inverted normals that badly. So the same effect is there, just not as visible. The voxel remesher is also not made for meshes that are thinner than the voxel size or open geometry. It needs to be a closed mesh with a big enough volume.
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Reference: blender/blender#93434
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