Enabling UV Sync selection with individual origins creates new UV islands #86924

Closed
opened 2021-03-25 07:59:58 +01:00 by Siddhartha Jejurkar · 16 comments

System Information
Operating system: Windows-10-10.0.19041-SP0 64 Bits
Graphics card: GeForce GTX 1050 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 457.30

Blender Version
Broken: version: 2.93.0 Alpha, branch: master, commit date: 2021-03-24 17:47, hash: 9ac7946dd0
Broken: 2.90
Worked: 2.83.12

Behavior changed in 2ba1cf4b40

Short description of error
Initial conditions : UV face select mode, sticky selection disabled and pivot around individual origins in UV editor
Actual behavior : Faces selected before enabling UV Sync selection become individual islands when UV Sync selection is enabled.
Expected Behavior : Faces selected before enabling UV Sync Selection should not become individual islands when UV Sync selection is enabled

Exact steps for others to reproduce the error
Go to UV Editing workspace in default startup

  1. Press 3 to enable face selection mode
  2. Disable sticky selection
  3. Set pivot to individual origins (for UV not 3D view/mesh)
  4. Select a few faces andwithout deselecting those faces, enable UV Sync selection
  5. In UV Sync selection mode, press A to select all faces and try rotating/scaling.
    It will be seen that the faces selected in step 4 have become individual islands.

UV Bug report proof.gif

**System Information** Operating system: Windows-10-10.0.19041-SP0 64 Bits Graphics card: GeForce GTX 1050 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 457.30 **Blender Version** Broken: version: 2.93.0 Alpha, branch: master, commit date: 2021-03-24 17:47, hash: `9ac7946dd0` Broken: 2.90 Worked: 2.83.12 Behavior changed in 2ba1cf4b40 **Short description of error** **Initial conditions** : UV face select mode, sticky selection disabled and pivot around individual origins in UV editor *Actual behavior* : Faces selected before enabling UV Sync selection become individual islands when UV Sync selection is enabled. *Expected Behavior* : Faces selected before enabling UV Sync Selection should not become individual islands when UV Sync selection is enabled **Exact steps for others to reproduce the error** Go to UV Editing workspace in default startup 1. Press 3 to enable face selection mode 2. Disable sticky selection 3. Set pivot to individual origins (for UV not 3D view/mesh) 4. Select a few faces and**without deselecting those faces**, enable UV Sync selection 5. In UV Sync selection mode, press A to select all faces and try rotating/scaling. It will be seen that the faces selected in step 4 have become individual islands. ![UV Bug report proof.gif](https://archive.blender.org/developer/F9908890/UV_Bug_report_proof.gif)
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Added subscriber: @sidd017

Added subscriber: @sidd017
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Also attaching a blend file in case above mentioned steps do not give specified results.
Simply open the blend file and follow steps 4 and 5 given in the original description here.
sync-select-bug.blend

Also attaching a blend file in case above mentioned steps do not give specified results. Simply open the blend file and follow steps 4 and 5 given in the original description here. [sync-select-bug.blend](https://archive.blender.org/developer/F9908898/sync-select-bug.blend)

Changed status from 'Needs Triage' to: 'Confirmed'

Changed status from 'Needs Triage' to: 'Confirmed'
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Added subscriber: @lichtwerk

Added subscriber: @lichtwerk
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Caused by 2ba1cf4b40

Caused by 2ba1cf4b40
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Added subscriber: @ZedDB

Added subscriber: @ZedDB
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CC @ZedDB

CC @ZedDB
Siddhartha Jejurkar self-assigned this 2021-03-26 12:18:45 +01:00

@sidd017 Do you intend to work on a fix for this?
If so that is great! I'm busy with other stuff ATM, I'm just double checking that it was your intention by claiming this task

@sidd017 Do you intend to work on a fix for this? If so that is great! I'm busy with other stuff ATM, I'm just double checking that it was your intention by claiming this task
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Added subscriber: @sebastian-4

Added subscriber: @sebastian-4
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I do intend to work on this.
Actually I have fix that is working, but I'm currently busy at the moment.
I'll submit a patch in as soon as I'm free

I do intend to work on this. Actually I have fix that is working, but I'm currently busy at the moment. I'll submit a patch in as soon as I'm free
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Removed subscriber: @sebastian-4

Removed subscriber: @sebastian-4
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@ZedDB Submitted the patch for review : D10830.

@ZedDB Submitted the patch for review : [D10830](https://archive.blender.org/developer/D10830).

@sidd017 Awesome! Seems to be a simple and elegant fix as well!

BTW you can fix the "Context not available" in the review by generating the patch with -U1000. So git diff -U1000.

You can poke me if it hasn't been reviewed in the coming weeks.
It looks good to me, but as you correctly guessed, it should be approved by the module maintainers.

@sidd017 Awesome! Seems to be a simple and elegant fix as well! BTW you can fix the "Context not available" in the review by generating the patch with `-U1000`. So `git diff -U1000`. You can poke me if it hasn't been reviewed in the coming weeks. It looks good to me, but as you correctly guessed, it should be approved by the module maintainers.
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Thanks @ZedDB !
Updated the diff based on your advice.
Will contact you if it doesn't get reviewed by the end of next week.

Thanks @ZedDB ! Updated the diff based on your advice. Will contact you if it doesn't get reviewed by the end of next week.

This issue was referenced by 9f3d41d4ee

This issue was referenced by 9f3d41d4eee6814fa4b6b89e75caeba1953ea6a7

Changed status from 'Confirmed' to: 'Resolved'

Changed status from 'Confirmed' to: 'Resolved'
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Reference: blender/blender#86924
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