Edits to Basis shapekey not propagating to relative shapekeys properly upon undo. #88361

New Issue

KB · 2021-05-18T07:35:55+02:00

KB commented

2021-05-18 07:35:55 +02:00

System Information
Operating system: Windows-10-10.0.19041-SP0 64 Bits
Graphics card: NVIDIA GeForce GTX 1070 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 466.27

Blender Version
Broken: version: 2.92.0, branch: master, commit date: 2021-02-24 16:25, hash: 02948a2cab
Broken: version: 2.83.14, branch: master, commit date: 2021-05-11 06:03, hash: 759fd9e4c2

Short description of error
When making multiple edits to Basis shapekey, then undoing one, multiple edits are undone on relative shapekeys.
Attached a gif of bug below.

Exact steps for others to reproduce the error
#88361.blend

In edit mode, modify the Basis shape key multiple times (move few vertices).
Press undo once.

Select a shape key that isn't the Basis shape key.

Shape isn't modified by previous modifications

**System Information** Operating system: Windows-10-10.0.19041-SP0 64 Bits Graphics card: NVIDIA GeForce GTX 1070 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 466.27 **Blender Version** Broken: version: 2.92.0, branch: master, commit date: 2021-02-24 16:25, hash: `02948a2cab` Broken: version: 2.83.14, branch: master, commit date: 2021-05-11 06:03, hash: `759fd9e4c2` **Short description of error** When making multiple edits to Basis shapekey, then undoing one, multiple edits are undone on relative shapekeys. Attached a gif of bug below. ![ProblemExample.gif](https://archive.blender.org/developer/F10120788/ProblemExample.gif) **Exact steps for others to reproduce the error** [#88361.blend](https://archive.blender.org/developer/F10144921/T88361.blend) - In edit mode, modify the Basis shape key multiple times (move few vertices). - Press undo once. # Select a shape key that isn't the Basis shape key. Shape isn't modified by previous modifications

KB commented

2021-05-18 07:35:55 +02:00

Added subscriber: @KOBELT

KB changed title from ~~Edits to Basis shapekey not propagating to relative shapekeys properly.~~ to Edits to Basis shapekey not propagating to relative shapekeys properly upon undo.

2021-05-18 07:41:01 +02:00

Richard Antalik commented

2021-05-26 13:29:50 +02:00

Added subscriber: @iss

Richard Antalik commented

2021-05-26 13:29:50 +02:00

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

Richard Antalik commented

2021-05-26 13:29:50 +02:00

This could be duplicate of report #63367 but I can't reproduce it. Please write down exact steps to reproduce.

KB commented

2021-05-27 07:54:47 +02:00

In my specific use-case I have an object with multiple shape keys that are set relative to the Basis shape key.
Here's how I reproduce this bug.

In edit mode, modify the Basis shape key multiple times.

Must be two or more modifications, ex. move an edge, then scale a face.
While still in edit mode within the Basis shape key, press undo once.
Select a shape key that isn't the Basis shape key.
All recent modifications that should have remained on the other shape keys are undone, rather than only the undone modification, causing them to become out of sync with the Basis shape key.

In my specific use-case I have an object with multiple shape keys that are set relative to the Basis shape key. Here's how I reproduce this bug. # In edit mode, modify the Basis shape key multiple times. - Must be two or more modifications, ex. move an edge, then scale a face. - While still in edit mode within the Basis shape key, press undo once. - Select a shape key that isn't the Basis shape key. - All recent modifications that should have remained on the other shape keys are undone, rather than only the undone modification, causing them to become out of sync with the Basis shape key.

Richard Antalik commented

2021-05-27 14:52:32 +02:00

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

Jason commented

2021-12-15 14:54:18 +01:00

Added subscriber: @Reoxur

Jason commented

2021-12-15 14:54:18 +01:00

I think this is the same as this Bug report

https://developer.blender.org/T44415

It's still an issue in 2.93.7, 3.0 and 3.1

I think this is the same as this Bug report https://developer.blender.org/T44415 It's still an issue in 2.93.7, 3.0 and 3.1

Philipp Oeser commented

2022-01-20 16:07:27 +01:00

Added subscriber: @lichtwerk

Philipp Oeser commented

2022-01-20 16:07:27 +01:00

Since this was reported again, I have put a bit more information in #44415 (Shape keys get out of sync with Basis shape (when using UNDO in basis modification or manipulating basis via python)), so these are really duplicates now, will merge these reports then.

Philipp Oeser commented

2022-01-20 16:07:39 +01:00

Closed as duplicate of #44415

Philipp Oeser closed this issue

2022-01-20 16:07:39 +01:00

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Edits to Basis shapekey not propagating to relative shapekeys properly upon undo. #88361

Select a shape key that isn't the Basis shape key.

In edit mode, modify the Basis shape key multiple times.