Regression: Wireframe overlay on mesh Merge by Distance omits some edges #109577

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opened 2023-07-01 08:03:19 +02:00 by Sun Kim · 3 comments
Contributor

System Information
Operating system: Windows-10-10.0.19045-SP0 64 Bits
Graphics card: NVIDIA GeForce RTX 2060 SUPER/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 531.61

Blender Version
Broken: version: 3.6.0 Alpha, branch: main, commit date: 2023-04-03 18:55, hash: 14b112ef825f
Worked: version: 3.6.0 Alpha, branch: main, commit date: 2023-03-31 02:03, hash: cde99075e870

Short description of error
Wireframe overlay on a mesh with geometry node setup of Extrude Mesh -> Merge by Distance omits some edges.

missing_edges_in_wireframe.png

Omission seems random and most times it's a few edges, but sometimes almost half of edges are omitted.

Exact steps for others to reproduce the error
missing_wireframe_edges.blend

It does not always happen. You may have to mute/unmute the Merge By Distance node several times to see it. It may be hard to notice in case it's just a couple of edges missing.

**System Information** Operating system: Windows-10-10.0.19045-SP0 64 Bits Graphics card: NVIDIA GeForce RTX 2060 SUPER/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 531.61 **Blender Version** Broken: version: 3.6.0 Alpha, branch: main, commit date: 2023-04-03 18:55, hash: `14b112ef825f` Worked: version: 3.6.0 Alpha, branch: main, commit date: 2023-03-31 02:03, hash: `cde99075e870` **Short description of error** Wireframe overlay on a mesh with geometry node setup of Extrude Mesh -> Merge by Distance omits some edges. ![missing_edges_in_wireframe.png](/attachments/9a0e2f90-6ab7-4e2a-9222-751770753f46) Omission seems random and most times it's a few edges, but sometimes almost half of edges are omitted. **Exact steps for others to reproduce the error** [missing_wireframe_edges.blend](/attachments/e7b10b25-ddff-49d0-92ab-09d9fb4a2f30) It does not always happen. You may have to mute/unmute the Merge By Distance node several times to see it. It may be hard to notice in case it's just a couple of edges missing.
Sun Kim added the
Type
Report
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Needs Triage
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labels 2023-07-01 08:03:20 +02:00
Iliya Katushenock changed title from Wireframe overlay on mesh with Extrude Mesh -> Merge by Distance omits some edges to Regression: Wireframe overlay on mesh Merge by Distance omits some edges 2023-07-01 12:54:36 +02:00

The problem can be reproduced with an array of cubes. The only problem is that they have contiguous polygons. I see that this is a regression, thanks for the report!

The problem can be reproduced with an array of cubes. The only problem is that they have contiguous polygons. I see that this is a regression, thanks for the report!
Iliya Katushenock added this to the 3.6 LTS milestone 2023-07-01 12:56:02 +02:00

I suspect it is caused by 1380ee74ff
@mano-wii /

I suspect it is caused by 1380ee74ffa73745d8e71a55d6a936b9c9abc792 @mano-wii /
Blender Bot added
Status
Resolved
and removed
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Confirmed
labels 2023-07-03 00:25:50 +02:00

Thanks for the report.
It was fixed in 4.0 (main).
For 3.6 the fix was put on the list To Be Backported.
Blender LTS: Maintenance Task 3.6

Thanks for the report. It was fixed in 4.0 (main). For 3.6 the fix was put on the list To Be Backported. [Blender LTS: Maintenance Task 3.6](https://projects.blender.org/blender/blender/issues/109399)
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Reference: blender/blender#109577
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