Extrude crash #93751

New Issue

Marco · 2021-12-06T13:56:51+01:00

Marco commented

2021-12-06 13:56:51 +01:00

System Information
Operating system: Arch Linux
Graphics card: Intel 620

Blender Version
Broken: 3.0 stable official

Short description of error
Extruding the geometry makes Blender unresponsive

Exact steps for others to reproduce the error
extrude.blend

Open blend file
Press E to extrude

**System Information** Operating system: Arch Linux Graphics card: Intel 620 **Blender Version** Broken: 3.0 stable official **Short description of error** Extruding the geometry makes Blender unresponsive **Exact steps for others to reproduce the error** [extrude.blend](https://archive.blender.org/developer/F12697673/extrude.blend) - Open blend file - Press E to extrude

Marco commented

2021-12-06 13:56:51 +01:00

Added subscriber: @nacioss

Philipp Oeser commented

2021-12-06 14:40:37 +01:00

Added subscriber: @lichtwerk

Philipp Oeser commented

2021-12-06 14:40:37 +01:00

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

Philipp Oeser commented

2021-12-06 14:40:37 +01:00

Can confirm for this mesh.
Apparently this got corrupted though, you can check with

C.active_object.data.validate(verbose=True)

which spits out P2647.

Interestingly, extrude wasnt actually that sensitive to this "corruptness" once (in a1556fa05c it still does its thing on the mesh without hanging, in c73be23e17 it already hangs).

@nacioss : got an idea which tool/operator might have caused this being mesh being corrupt?

Can confirm for this mesh. Apparently this got corrupted though, you can check with ``` C.active_object.data.validate(verbose=True) ``` which spits out [P2647](https://archive.blender.org/developer/P2647.txt). Interestingly, extrude wasnt actually that sensitive to this "corruptness" once (in a1556fa05c it still does its thing on the mesh without hanging, in c73be23e17 it already hangs). @nacioss : got an idea which tool/operator might have caused this being mesh being corrupt?

Marco commented

2021-12-06 15:24:27 +01:00

Hemisphere.blend
Sure @lichtwerk , here's the script that generates it, just run it.
Please tell me if there is some missing commands in the script.

[Hemisphere.blend](https://archive.blender.org/developer/F12698082/Hemisphere.blend) Sure @lichtwerk , here's the script that generates it, just run it. Please tell me if there is some missing commands in the script.

Philipp Oeser commented

2021-12-07 10:23:43 +01:00

Cant really debug your script fully due to time constraints (this is not a support forum, but a bugtracker), but to me it looks like some "off-by-one" mistake in your algo.
For example: seeing you have 60 "squares" and in P2647 it is reported that every 60*2+1 poly has this "mistake":

Poly 120 has duplicated vert reference at corner (1)
Poly 120 has duplicated vert reference at corner (2)
Poly 120 has duplicated vert reference at corner (3)
Poly 241 has duplicated vert reference at corner (1)
Poly 241 has duplicated vert reference at corner (2)
Poly 241 has duplicated vert reference at corner (3)
Poly 362 has duplicated vert reference at corner (1)
Poly 362 has duplicated vert reference at corner (2)
Poly 362 has duplicated vert reference at corner (3)

Cant really debug your script fully due to time constraints (this is not a support forum, but a bugtracker), but to me it looks like some "off-by-one" mistake in your algo. For example: seeing you have 60 "squares" and in [P2647](https://archive.blender.org/developer/P2647.txt) it is reported that every 60*2+1 poly has this "mistake": ``` Poly 120 has duplicated vert reference at corner (1) Poly 120 has duplicated vert reference at corner (2) Poly 120 has duplicated vert reference at corner (3) Poly 241 has duplicated vert reference at corner (1) Poly 241 has duplicated vert reference at corner (2) Poly 241 has duplicated vert reference at corner (3) Poly 362 has duplicated vert reference at corner (1) Poly 362 has duplicated vert reference at corner (2) Poly 362 has duplicated vert reference at corner (3) ```

Marco commented

2021-12-07 15:39:46 +01:00

Thank you!! Fixed the issue, basically I did a workaround in the algorithm and while it worked in 2.9x it doesn't anymore in 3.0x for some reason, so fixed the workaround. Thank you again for pointing me to the right direction.

Marco commented

2021-12-07 15:56:38 +01:00

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

Marco closed this issue

2021-12-07 15:56:38 +01:00

Marco self-assigned this 2021-12-07 15:56:38 +01:00

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Extrude crash #93751