Page MenuHome
Create Task
Maniphest T72826

Auto Merge > Split Edges & Faces: Doesn't split faces
Closed, ResolvedPublicKNOWN ISSUE
Actions

Description

System Information
Operating system: Windows-7-6.1.7601-SP1 64 Bits
Graphics card: GeForce GTX 1660/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 441.41

Blender Version
Broken: version: 2.82 (sub 6), branch: master, commit date: 2019-12-30 18:20, hash: rB56ef761381ec

Short description of error
"Split Edges & Faces" doesn't split faces as expected when the other geometry already has a face.

Exact steps for others to reproduce the error

  1. Add a plane.
  2. In Edit Mode, activate "Auto Merge" and "Split Edges & Faces". Threshold = 0.001 m
  3. Extrude any edge towards the center of the plane.

It doesn't split the first plane.

[Based on the default startup or an attached .blend file (as simple as possible)]

MergeBug.blend543 KBDownload

Related Objects

Event Timeline

Eduardo (massanet) created this task.Dec 31 2019, 8:41 PM
Pasang Bomjan (irex124) added a subscriber: Pasang Bomjan (irex124).Jan 1 2020, 9:26 AM

It's not a bug, just a limitation. The upcoming "Destructive Extrude" does it better.

Eduardo (massanet) added a comment.EditedJan 1 2020, 3:03 PM

"Extrude" was just the simplest way I found to show the bug.
This same behavior can be seen if you get any other plane and intersect coplanar with the first.
It merges and splits edges as expected, but faces remain duplicated and not splitted.

Pasang Bomjan (irex124) added a comment.Jan 1 2020, 3:34 PM

I was always aware that it didn't split the faces but didn't think it was a bug (cause I'd always mistaken the operator as "Split The Edges" only, 😅). My bad, 😅. Yes, It is a bug and has been around from the beginning.

Germano Cavalcante (mano-wii) closed this task as Archived.Jan 2 2020, 12:54 AM
Germano Cavalcante (mano-wii) claimed this task.
Germano Cavalcante (mano-wii) added a subscriber: Germano Cavalcante (mano-wii).

Thanks for the report.
This is a known limitation.
I have plans to implement a solution that solves this case but is not that simple.
And it's not the priority right now.

Anyway, this is not a bug as the mesh is still valid (no duplicate faces).
So closing.

Germano Cavalcante (mano-wii) reopened this task as Confirmed.Jan 19 2020, 8:17 PM
Germano Cavalcante (mano-wii) added a project: Modeling.
Germano Cavalcante (mano-wii) changed the subtype of this task from "Report" to "Known Issue".
Germano Cavalcante (mano-wii) mentioned this in D6626: Edit Mesh: Auto Merge - Split Edges & Faces Improvement.Jan 19 2020, 8:24 PM
Pasang Bomjan (irex124) closed this task as Resolved.May 3 2020, 7:28 AM