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Regression: Sculpt: Expand Face Set By Topology broken in Blender 4.1, 4.2 and 4.3 #123335

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opened 2024-06-17 22:41:22 +02:00 by Lucas · 5 comments
Lucas commented 2024-06-17 22:41:22 +02:00
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System Information
Operating system: Windows-10-10.0.19045-SP0 64 Bits
Graphics card: NVIDIA GeForce RTX 3060/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 555.99

Blender Version
Broken: version: 4.3.0 Alpha, branch: main, commit date: 2024-06-12 20:45, hash: ad3c92b6601a
Worked: 4.0
Short description of error
Expand Face Set By Topology (Shift W) broken in Blender 4.1, 4.2 and 4.3
If you fill the whole object with a face set it works as expected but as soon as you clear the face set (from the Face Sets menu select
Face Set from Visible) it breaks again. The face Set will not contract, only expand as I move the mouse and pressing E will create a rainbow.
Watch provided video.
Exact steps for others to reproduce the error

  1. Add a Sphere.
  2. Go into sculpt mode.
  3. Press Shift W on the mesh and move the cursor.
  4. Press E to create an unexpected rainbow pattern.
  5. Press Shift W again and fill the whole mesh with one face set.
  6. Press shift W again and move the mouse(everything should work).
  7. Press alt W and select Face Set from visible.
  8. Press Shift W again and notice that it's broken again.
**System Information** Operating system: Windows-10-10.0.19045-SP0 64 Bits Graphics card: NVIDIA GeForce RTX 3060/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 555.99 **Blender Version** Broken: version: 4.3.0 Alpha, branch: main, commit date: 2024-06-12 20:45, hash: `ad3c92b6601a` Worked: 4.0 **Short description of error** Expand Face Set By Topology (Shift W) broken in Blender 4.1, 4.2 and 4.3 If you fill the whole object with a face set it works as expected but as soon as you clear the face set (from the Face Sets menu select Face Set from Visible) it breaks again. The face Set will not contract, only expand as I move the mouse and pressing E will create a rainbow. Watch provided video. **Exact steps for others to reproduce the error** 1. Add a Sphere. 2. Go into sculpt mode. 3. Press Shift W on the mesh and move the cursor. 4. Press E to create an unexpected rainbow pattern. 5. Press Shift W again and fill the whole mesh with one face set. 6. Press shift W again and move the mouse(everything should work). 7. Press alt W and select Face Set from visible. 8. Press Shift W again and notice that it's broken again.
2024-06-17 13-18-02.mp4
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Lucas added the
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 labels 2024-06-17 22:41:23 +02:00
Iliya Katushenock added the
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Sculpt, Paint & Texture
 label 2024-06-17 22:50:05 +02:00
Pratik Borhade commented 2024-06-18 06:29:26 +02:00
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Hi, thanks for the report. Can confirm

Hi, thanks for the report. Can confirm
Pratik Borhade commented 2024-06-18 06:39:32 +02:00
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Broke between 27992034f2e6 - fb5d03b5baae

Broke between `27992034f2e6 - fb5d03b5baae`
Sean Kim commented 2024-06-18 16:08:14 +02:00
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I’ll take a look into this today

I’ll take a look into this today
Sean Kim self-assigned this 2024-06-18 16:08:46 +02:00
Sean Kim commented 2024-06-18 17:09:13 +02:00
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So, as far as I can see, the two issues here are:

  1. The face set doesn't shrink
  2. Pressing E after Shift-W doesn't toggle the color, instead it causes a weird rainbow pattern of face sets

Both of these only happen when there is no face set attribute on the mesh

So, as far as I can see, the two issues here are: 1. The face set doesn't shrink 2. Pressing E after Shift-W doesn't toggle the color, instead it causes a weird rainbow pattern of face sets Both of these only happen when there is no face set attribute on the mesh
Sean Kim commented 2024-06-18 18:14:14 +02:00
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Will have a fix for this soon, fairly sure this issue is caused by f3dd1a3260

Will have a fix for this soon, fairly sure this issue is caused by https://projects.blender.org/blender/blender/commit/f3dd1a326099e711ba1805e499f8d446aec5abf8
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Reference: blender/blender#123335
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