Undo is making objects to disappear in sculpt mode #69822

New Issue

Erick Tukuniata · 2019-09-12T23:53:18+02:00

Erick Tukuniata commented

2019-09-12 23:53:18 +02:00

System Information
Operating system: Windows-7-6.1.7601-SP1 64 Bits
Graphics card: GeForce GTX 550 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 376.51

Blender Version
Broken: version: 2.81 (sub 11), branch: master, commit date: 2019-09-12 16:23, hash: 5b2cebf49b
Worked: (optional)

Short description of error
Undo is making objects to disappear in sculpt mode

Exact steps for others to reproduce the error

Load the factory settings, and add 3 more different objects
Go to object data properties and delete all those default UVs map
In the edit menu uncheck lock object modes and open preferences go to keymaps change select to right
Now activate Dyntopo for the objects ( right click select and ctrl+d to active Dyntopo)
Get a clay strip brush
Sculpt something on all the objects without leaving the sculpt mode since all of the objects are in sculpt mode. ( RMB select to change object and LMB to sculpt)
After all of them have some kind of deformations, start undo.

Things to notice sometimes objects change places and sometimes they disappear, when an object change place if you try to select it, it wouldn't happen.

You can try with the blend file as well. Open it and sculpt some and start to undo sculpt_undo_1.blend

**System Information** Operating system: Windows-7-6.1.7601-SP1 64 Bits Graphics card: GeForce GTX 550 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 376.51 **Blender Version** Broken: version: 2.81 (sub 11), branch: master, commit date: 2019-09-12 16:23, hash: `5b2cebf49b` Worked: (optional) **Short description of error** Undo is making objects to disappear in sculpt mode **Exact steps for others to reproduce the error** - Load the factory settings, and add 3 more **different** objects - Go to object data properties and delete all those default UVs map - In the edit menu uncheck lock object modes and open preferences go to keymaps change select to right - Now activate Dyntopo for the objects ( right click select and ctrl+d to active Dyntopo) - Get a clay strip brush - Sculpt something on all the objects without leaving the sculpt mode since all of the objects are in sculpt mode. ( RMB select to change object and LMB to sculpt) - After all of them have some kind of deformations, start undo. Things to notice sometimes objects change places and sometimes they disappear, when an object change place if you try to select it, it wouldn't happen. You can try with the blend file as well. Open it and sculpt some and start to undo [sculpt_undo_1.blend](https://archive.blender.org/developer/F7740929/sculpt_undo_1.blend)

Erick Tukuniata commented

2019-09-12 23:53:18 +02:00

Added subscriber: @ErickNyanduKabongo

Germano Cavalcante commented

2019-09-23 15:17:24 +02:00

Added subscriber: @mano-wii

Germano Cavalcante commented

2019-09-23 15:17:24 +02:00

I could not reproduce the problem with the attached file.
Has it been resolved in recent builds? (https://builder.blender.org/download/)

I could not reproduce the problem with the attached file. Has it been resolved in recent builds? (https://builder.blender.org/download/)

Erick Tukuniata commented

2019-09-23 22:24:59 +02:00

Has it been resolved in recent builds?

No, I tried the attached file, now it is crashing. I tried with the instructions above i can reproduce with Master: 2.81 (sub 12), branch: master, commit date: 2019-09-23 15:18, hash: 14acac0bb7

Did you try to follow the step by step instructions?

> Has it been resolved in recent builds? No, I tried the attached file, now it is crashing. I tried with the instructions above i can reproduce with Master: 2.81 (sub 12), branch: master, commit date: 2019-09-23 15:18, hash: `14acac0bb7` Did you try to follow the step by step instructions?

Campbell Barton was assigned by Germano Cavalcante

2019-09-24 14:53:40 +02:00

Germano Cavalcante commented

2019-09-24 14:53:40 +02:00

Added subscriber: @ideasman42

Germano Cavalcante commented

2019-09-24 14:53:40 +02:00

@ideasman42, apparently the problem involves the undo system and bmesh.

A simple way to reproduce the problem is to:

open the attached file (note that lock object modes is disabled);
enable dyntopo on all objects (active object by clicking on it);
sculpt something on all the objects;
peform undo at least 3 times.

@ideasman42, apparently the problem involves the undo system and bmesh. A simple way to reproduce the problem is to: - open the attached file (note that lock object modes is disabled); - enable dyntopo on all objects (active object by clicking on it); - sculpt something on all the objects; - peform undo at least 3 times.

blender-admin commented

2019-11-07 06:52:03 +01:00

This issue was referenced by 79b703bb63

This issue was referenced by 79b703bb635ea719bbe31c1ece9884d2d298eaef

Campbell Barton commented

2019-11-07 06:59:29 +01:00

Changed status from 'Open' to: 'Resolved'

Campbell Barton closed this issue

2019-11-07 06:59:29 +01:00

Thomas Dinges added this to the 2.81 milestone 2023-02-08 16:46:57 +01:00

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Undo is making objects to disappear in sculpt mode #69822