[Workbench] Wireframe rendering error (overlapping parts of wireframes don't render at all) #73046

New Issue

Ilari Männistö · 2020-01-11T15:59:56+01:00

Ilari Männistö commented

2020-01-11 15:59:56 +01:00

System Information
Operating system: Windows-10-10.0.18362-SP0 64 Bits
Graphics card: GeForce GTX 1080/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 441.66

Blender Version
Broken: version: 2.82 (sub 6), branch: master, commit date: 2020-01-10 15:30, hash: 1cb938ef2c
Worked: version: 2.82, commit date: 2020-11-27, hash: 4659fa5471

Short description of error
Wireframes in newest daily builds appear like this for me at least:

I tried to resolve the situation by reducing the view clipping to something minimal but it still doesn't help the situation. Many parts of the wireframe aren't drawn correctly and I suspect those areas are in places where there is another, "hidden" wireframe edge drawn behind them.
Viewport or Themes settings in the preferences don't alter the result, at least I couldn't find any helpful setting.

Exact steps for others to reproduce the error
Attached is the blender file from which I took the screenshot.
wireframe-error.blend

**System Information** Operating system: Windows-10-10.0.18362-SP0 64 Bits Graphics card: GeForce GTX 1080/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 441.66 **Blender Version** Broken: version: 2.82 (sub 6), branch: master, commit date: 2020-01-10 15:30, hash: `1cb938ef2c` Worked: version: 2.82, commit date: 2020-11-27, hash: `4659fa5471` **Short description of error** Wireframes in newest daily builds appear like this for me at least: ![image.png](https://archive.blender.org/developer/F8269890/image.png) I tried to resolve the situation by reducing the view clipping to something minimal but it still doesn't help the situation. Many parts of the wireframe aren't drawn correctly and I suspect those areas are in places where there is another, "hidden" wireframe edge drawn behind them. Viewport or Themes settings in the preferences don't alter the result, at least I couldn't find any helpful setting. **Exact steps for others to reproduce the error** Attached is the blender file from which I took the screenshot. [wireframe-error.blend](https://archive.blender.org/developer/F8269895/wireframe-error.blend)

Ilari Männistö commented

2020-01-11 15:59:56 +01:00

Added subscriber: @Lattapotta

blender-admin commented

2020-01-11 15:59:56 +01:00

#72865 was marked as duplicate of this issue

Justin commented

2020-01-11 16:34:54 +01:00

Added subscriber: @JustinWebster

Justin commented

2020-01-11 16:34:54 +01:00

I can confirm having this issue also, doesn't look nice that for sure.

Jason McNeill commented

2020-01-11 18:34:13 +01:00

Added subscriber: @jl5086

Jason McNeill commented

2020-01-11 18:34:13 +01:00

I also have this same issue, and have noticed it for some time, although it may be worse than it was before. In more dense meshes you can clearly see ALL the wires behind the surface are the source of the "breaks" in the wire overlay{F8270129}. Ymi0objcN1.mp4

I also have this same issue, and have noticed it for some time, although it may be worse than it was before. In more dense meshes you can clearly see ALL the wires behind the surface are the source of the "breaks" in the wire overlay{[F8270129](https://archive.blender.org/developer/F8270129/blender_wRC24MfKcG.jpg)}. [Ymi0objcN1.mp4](https://archive.blender.org/developer/F8270108/Ymi0objcN1.mp4) ![blender_wRC24MfKcG.jpg](https://archive.blender.org/developer/F8270124/blender_wRC24MfKcG.jpg)

Justin commented

2020-01-12 04:37:24 +01:00

Added subscriber: @mano-wii

Justin commented

2020-01-12 04:37:24 +01:00

Yeap I also had this too, I reported it but wasn't sure if it was a addon causing it, which I think it wasn't, a quick fix was to enable In Front in the Viewport Display, then disable it would temporary fix it, but the issue will come back again.

@mano-wii This was same has my report.

Edit*:

Same with 2.83 Alpha.

Seems to be something related to when enabling shadows in solid view, and having All Edges off will cause more artifacts, has above, enable In Front will fix it.

Blender 2020-01-12 14-41-57.mp4

Yeap I also had this too, I reported it but wasn't sure if it was a addon causing it, which I think it wasn't, a quick fix was to enable In Front in the Viewport Display, then disable it would temporary fix it, but the issue will come back again. @mano-wii This was same has my report. Edit*: Same with 2.83 Alpha. Seems to be something related to when enabling shadows in solid view, and having All Edges off will cause more artifacts, has above, enable In Front will fix it. [Blender 2020-01-12 14-41-57.mp4](https://archive.blender.org/developer/F8271799/Blender_2020-01-12_14-41-57.mp4)

Germano Cavalcante commented

2020-01-12 15:36:41 +01:00

Added subscriber: @Dogway

Germano Cavalcante changed title from ~~Wireframe rendering error (overlapping parts of wireframes don't render at all)~~ to [Workbench] Wireframe rendering error (overlapping parts of wireframes don't render at all)

2020-01-12 15:43:08 +01:00

Germano Cavalcante commented

2020-01-12 15:43:08 +01:00

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

Germano Cavalcante commented

2020-01-12 15:44:50 +01:00

Apparently this is a regression was introduced in some November commit.

Jeroen Bakker commented

2020-01-13 11:29:21 +01:00

Added subscriber: @Jeroen-Bakker

Jeroen Bakker self-assigned this 2020-01-13 11:29:21 +01:00

Jeroen Bakker commented

2020-01-13 11:29:21 +01:00

Seems like after enabling/disabling the shadow option in the workbench lines are rendered. It only seems to be related to Workbench. the other modes render correctly.

Issue is related to how the stencil buffers are used during the wireframe drawing.

DRWState stencil_state = is_material_shmode ? 0 : DRW_STATE_STENCIL_EQUAL;

The most consistent drawing I get when removing the stencil test for all render modes, but that sounds like that the implementation does not take all options into account. I will assign it to Clement as he known the ideas behind this.

Seems like after enabling/disabling the shadow option in the workbench lines are rendered. It only seems to be related to Workbench. the other modes render correctly. Issue is related to how the stencil buffers are used during the wireframe drawing. `DRWState stencil_state = is_material_shmode ? 0 : DRW_STATE_STENCIL_EQUAL;` The most consistent drawing I get when removing the stencil test for all render modes, but that sounds like that the implementation does not take all options into account. I will assign it to Clement as he known the ideas behind this.

Jeroen Bakker removed their assignment 2020-01-13 12:18:49 +01:00

Clément Foucault was assigned by Jeroen Bakker

2020-01-13 12:18:49 +01:00

Ilari Männistö commented

2020-01-13 13:00:16 +01:00

I don't know if I've just messed up other settings, but for me all the modes look pretty jagged/aliased and sometimes the silhouette lines appear broken because of that. And I was going to demonstrate those aliased edges (even though my AA-settings are on max), but I instead found a new glitch.

Eevee does this:

(It makes the mesh look like X-ray when "In Front" option is toggled. Workbench works as suspected / normally, although the problems that blenux showed in their video are still apparent.

I don't know if I've just messed up other settings, but for me all the modes look pretty jagged/aliased and sometimes the silhouette lines appear broken because of that. And I was going to demonstrate those aliased edges (even though my AA-settings are on max), but I instead found a new glitch. Eevee does this: ![wireframe-eevee-workbench.gif](https://archive.blender.org/developer/F8275637/wireframe-eevee-workbench.gif) (It makes the mesh look like X-ray when "In Front" option is toggled. Workbench works as suspected / normally, although the problems that blenux showed in their video are still apparent.

blender-admin commented

2020-01-13 16:26:42 +01:00

This issue was referenced by b8bdb8e9e9

This issue was referenced by b8bdb8e9e99d33fc16d69307330d160abbba923e

Clément Foucault commented

2020-01-13 17:31:11 +01:00

Changed status from 'Confirmed' to: 'Resolved'

Clément Foucault closed this issue

2020-01-13 17:31:11 +01:00

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[Workbench] Wireframe rendering error (overlapping parts of wireframes don't render at all) #73046