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Regression: Fill mask in sculpt mode on partially hidden mesh causing instant crash #130010

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opened 2024-11-08 05:28:47 +01:00 by Michael · 4 comments
Michael commented 2024-11-08 05:28:47 +01:00
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System Information
Operating system: Windows 11
Graphics card: rtx 4090

Blender Version
Broken: 4.1, 4.3
Worked: 4.0

Short description of error
Fill mask in sculpt mode on partially hidden mesh causing instant crash.

Exact steps for others to reproduce the error

  • Add multi-res to any mesh, in edit mode selecfault some verticubes
  • In sculpt mode create a face set from edit mode selection
  • Shift + H to isolate face set selection then Mask, Fill Mask.

image

**System Information** Operating system: Windows 11 Graphics card: rtx 4090 **Blender Version** Broken: 4.1, 4.3 Worked: 4.0 **Short description of error** Fill mask in sculpt mode on partially hidden mesh causing instant crash. **Exact steps for others to reproduce the error** - Add multi-res to any mesh, in edit mode selecfault some verticubes - In sculpt mode create a face set from edit mode selection - Shift + H to isolate face set selection then Mask, Fill Mask. ![image](/attachments/f507d305-ac39-4d97-a41c-bee14da1b983)
MaskCrash.blend
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image.png
809 KiB
Michael added the
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 labels 2024-11-08 05:28:47 +01:00
Pratik Borhade commented 2024-11-08 06:06:25 +01:00
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Hi, thanks for the report. Can confirm the crash (4.0 is good)

Hi, thanks for the report. Can confirm the crash (4.0 is good)
👍 1
Pratik Borhade changed title from Fill mask in sculpt mode on partially hidden mesh causing instant crash. to Regression: Fill mask crash on multires mesh 2024-11-08 06:18:31 +01:00
Pratik Borhade changed title from Regression: Fill mask crash on multires mesh to Regression: Fill mask in sculpt mode on partially hidden mesh causing instant crash 2024-11-08 06:23:25 +01:00
Pratik Borhade commented 2024-11-08 06:25:13 +01:00
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In 4.3, mask operations crashes straightaway when default cube has multires modifier.
Invalid subdiv_ccg.masks span

In 4.3, mask operations crashes straightaway when default cube has multires modifier. Invalid `subdiv_ccg.masks` span
Pratik Borhade commented 2024-11-08 06:34:50 +01:00
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In 4.3, mask operations crashes straightaway when default cube has multires modifier.

I think I found cause of this issue.
BKE_sculpt_mask_layers_ensure -> BKE_scene_graph_evaluated_ensure changes sculpt->subdiv_ccg pointer. So the earlier reference &subdiv_ccg in fill_mask_grids becomes invalid.
Will make the PR.

> In 4.3, mask operations crashes straightaway when default cube has multires modifier. I think I found cause of this issue. `BKE_sculpt_mask_layers_ensure` -> `BKE_scene_graph_evaluated_ensure` changes `sculpt->subdiv_ccg` pointer. So the earlier reference `&subdiv_ccg` in `fill_mask_grids` becomes invalid. Will make the PR.
Pratik Borhade self-assigned this 2024-11-08 07:17:36 +01:00
Pratik Borhade added this to the 4.3 milestone 2024-11-08 07:17:39 +01:00
Pratik Borhade commented 2024-11-08 07:17:49 +01:00
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Fix !130014

Fix !130014
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 labels 2024-11-08 11:16:26 +01:00
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Reference: blender/blender#130010
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