Regression: Multiresolution sculpt mode: Expand mask by topology cancellation bug #120934

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opened 2024-04-22 14:43:15 +02:00 by inter_net · 3 comments

inter_net commented

2024-04-22 14:43:15 +02:00

System Information
Operating system: Windows-10-10.0.22631-SP0 64 Bits
Graphics card: NVIDIA GeForce RTX 3070/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 551.76

Blender Version
Broken: version: 4.1.1, branch: blender-v4.1-release, commit date: 2024-04-15 15:11, hash: e1743a0317bc
Worked: version: 3.6.11 LTS

Short description of error
Canceling "Expand mask by topology" operation causes strange mask pattern applied to mesh with Multiresolution in sculpt mode.

Exact steps for others to reproduce the error
While editing object in scuplt mode with Multiresolution Modifier (anything greater than subdivision 0), trying to perform "Expand mask by topology" operation via a short cut (Shift + A) or Mask menu seems to create a strange pattern when operation is canceled with right mouse button or esc.
The mask pattern mimicking the original mesh is applied, recorded in history, and can be undone. When I tested in version 3.6.11 it laks that issue.

[Based on the default startup or an attached .blend file (as simple as possible)]
I attached the video file with a short demonstration of this problem with factory settings in Blender 4.1.1 in comparison with the 3.6.11 version.

**System Information** Operating system: Windows-10-10.0.22631-SP0 64 Bits Graphics card: NVIDIA GeForce RTX 3070/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 551.76 **Blender Version** Broken: version: 4.1.1, branch: blender-v4.1-release, commit date: 2024-04-15 15:11, hash: `e1743a0317bc` Worked: version: 3.6.11 LTS **Short description of error** Canceling "Expand mask by topology" operation causes strange mask pattern applied to mesh with Multiresolution in sculpt mode. **Exact steps for others to reproduce the error** While editing object in scuplt mode with Multiresolution Modifier (anything greater than subdivision 0), trying to perform "Expand mask by topology" operation via a short cut (Shift + A) or Mask menu seems to create a strange pattern when operation is canceled with right mouse button or esc. The mask pattern mimicking the original mesh is applied, recorded in history, and can be undone. When I tested in version 3.6.11 it laks that issue. [Based on the default startup or an attached .blend file (as simple as possible)] I attached the video file with a short demonstration of this problem with factory settings in Blender 4.1.1 in comparison with the 3.6.11 version.

Multires_Mask_Cancel.blend

24 MiB

ezgif-5-3e3fe3e9f7.mp4

1.2 MiB

inter_net added the

labels 2024-04-22 14:43:16 +02:00

Iliya Katushenock added the

Sculpt, Paint & Texture

labels 2024-04-22 18:10:12 +02:00

Iliya Katushenock changed title from ~~Multiresolution sculpt mode: Expand mask by topology cancellation bug~~ to Regression: Multiresolution sculpt mode: Expand mask by topology cancellation bug

2024-04-22 18:10:20 +02:00

YimingWu commented

2024-04-23 04:00:17 +02:00

Member

Can confirm. Looks like the mask values aren't properly cancelled.

Tested to be broken since at least 4.0 995aa08c79

Will bisect.

Can confirm. Looks like the mask values aren't properly cancelled. Tested to be broken since at least 4.0 995aa08c795 Will bisect.

YimingWu added

Sculpt, Paint & Texture

and removed

labels 2024-04-23 04:04:27 +02:00

YimingWu commented

2024-04-23 04:17:11 +02:00

Member

4.0 at 74cc9f5738 is even more broke, the mask won't even show properly before cancelling...

~~Assuming 4.0 is broken from start. Will test 3.6~~ 3.6 latest is still correct. so broken between 3.6 0d97ea8e3d and 4.0 74cc9f5738

4.0 at 74cc9f5738 is even more broke, the mask won't even show properly before cancelling... <s>Assuming 4.0 is broken from start. Will test 3.6</s> 3.6 latest is still correct. so broken between 3.6 0d97ea8e3dc25b20c0478b625209d75c1d014b19 and 4.0 74cc9f5738d ![image](/attachments/16be7a5d-72e3-471d-9110-06106761a594)

80 KiB

YimingWu commented

2024-04-23 05:40:16 +02:00

Member

This particular artifact in the screenshot in previous comment is caused by 97f2b01ea9 , and it seems to have never been fixed fully. @HooglyBoogly

This particular artifact in the screenshot in previous comment is caused by 97f2b01ea93b599a537d634e22 , and it seems to have never been fixed fully. @HooglyBoogly

YimingWu added

and removed

labels 2024-04-23 05:41:37 +02:00

Hans Goudey referenced this issue from a commit

2024-04-24 14:07:12 +02:00

Fix #120934: Sculpt expand cancel broken with multires

Hans Goudey closed this issue

2024-04-24 14:07:13 +02:00

Blender Bot added

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labels 2024-04-24 14:07:15 +02:00

Hans Goudey added

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labels 2024-04-24 18:58:50 +02:00

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