If auto-smooth is active entering edit mode may crash #41946

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Konstantins Visnevskis · 2014-09-25T01:26:07+02:00

2014-09-25 01:26:07 +02:00

Both Win8.1x64, GTX580, 2.72RC and Ubuntu, 2.71

If auto-smooth is activated, Blender crashes when entering Edit Mode on this mesh.err.blend

Both Win8.1x64, GTX580, 2.72RC and Ubuntu, 2.71 If auto-smooth is activated, Blender crashes when entering Edit Mode on this mesh.[err.blend](https://archive.blender.org/developer/F112170/err.blend)

Konstantins Visnevskis commented

2014-09-25 01:26:07 +02:00

Changed status to: 'Open'

Konstantins Visnevskis commented

2014-09-25 01:26:07 +02:00

Added subscriber: @KonstantinsVisnevskis

Sergey Sharybin commented

2014-09-25 09:22:20 +02:00

Added subscriber: @Sergey

Sergey Sharybin commented

2014-09-25 09:22:20 +02:00

The mesh is corrupted, you can see it by running C.object.data.validate(True) in the python console and checking the output in the system console, where you'll see "Poly 83 has invalid edge reference (66), fixed using edge 153". After such validation entering edit mode works fine.

In order to solve the issue, we need to go to the root of it, which is making it so you can not corrupt your meshes. For this we need to know exact steps how you managed to go from mesh with OK topology to a mesh with the corrupted one.

The mesh is corrupted, you can see it by running `C.object.data.validate(True)` in the python console and checking the output in the system console, where you'll see "Poly 83 has invalid edge reference (66), fixed using edge 153". After such validation entering edit mode works fine. In order to solve the issue, we need to go to the root of it, which is making it so you can not corrupt your meshes. For this we need to know exact steps how you managed to go from mesh with OK topology to a mesh with the corrupted one.

Konstantins Visnevskis commented

2014-09-25 10:18:18 +02:00

I have the versions with mesh before and after this started to occur, but unfortunately the mesh is under strict NDA.
Almost exclusive operations performed were vertex merge -> at last/at center, but in this case I don't see particular changes between the two meshes. Is there a way to select the problematic edge so I can look for differences?

On a side note - if the mode is not erroneous geometry proof, shouldn't the validation button be avaiable in the interface for such cases?

I have the versions with mesh before and after this started to occur, but unfortunately the mesh is under strict NDA. Almost exclusive operations performed were vertex merge -> at last/at center, but in this case I don't see particular changes between the two meshes. Is there a way to select the problematic edge so I can look for differences? On a side note - if the mode is not erroneous geometry proof, shouldn't the validation button be avaiable in the interface for such cases?

Sergey Sharybin commented

2014-09-25 10:24:43 +02:00

If the mesh is corrupted you might have issues with any area in blender, so it's just should not be possible to corrupt it which should answer your question about validate button.

And it's not enough to just have mesh before and after the corruption, it's also needed to know a step which converted mesh from good one to a corrupted one.

If the mesh is corrupted you might have issues with any area in blender, so it's just should not be possible to corrupt it which should answer your question about validate button. And it's not enough to just have mesh before and after the corruption, it's also needed to know a step which converted mesh from good one to a corrupted one.

Bastien Montagne commented

2014-10-02 11:00:37 +02:00

Changed status from 'Open' to: 'Archived'

Bastien Montagne closed this issue

2014-10-02 11:00:37 +02:00

Bastien Montagne self-assigned this 2014-10-02 11:00:37 +02:00

Bastien Montagne commented

2014-10-02 11:00:37 +02:00

No news since one week…

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If auto-smooth is active entering edit mode may crash #41946