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Multiresolution Modifier breaks mask when subdividing in Object Mode #123859

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opened 2024-06-27 21:10:44 +02:00 by Paul · 5 comments
Paul commented 2024-06-27 21:10:44 +02:00
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System Information
Operating system:
Graphics card:

Blender Version
Broken: 4.1.1 (not fixed as of 4.2.0 Beta 2024-06-26)
Working: 3.3LTS

Caused by b5f7af31d6

Short description of error
Subdividing multiresolution in object mode seems to remove the mask from the new sculpt layer. Entering sculpt mode and subdividing again causes a distorted version of the mask to be created, reminiscent of the broken behavior in 4.0.2 that occurs even when subdividing in sculpt mode. This seems to be a residue of a bug mostly fixed between 4.0.2 and 4.1.1.

Exact steps for others to reproduce the error

  1. Add a default cube, subdivide in edit mode a couple of times.
  2. Paint a mask in sculpt mode.
  3. Enter object mode, add a multiresolution modifier, and press "subdivide."
  4. Re-enter sculpt mode. The mask will be gone on the new sculpt level (but present on the lower one).
  5. As a bonus, press subdivide again while in sculpt mode. A 4.0.2-style broken mask will be added to the new sculpt level.
**System Information** Operating system: Graphics card: **Blender Version** Broken: 4.1.1 (not fixed as of 4.2.0 Beta 2024-06-26) Working: 3.3LTS Caused by b5f7af31d6d474c3b455bacda079969fde7c0962 **Short description of error** Subdividing multiresolution in object mode seems to remove the mask from the new sculpt layer. Entering sculpt mode and subdividing again causes a distorted version of the mask to be created, reminiscent of the broken behavior in 4.0.2 that occurs even when subdividing in sculpt mode. This seems to be a residue of a bug mostly fixed between 4.0.2 and 4.1.1. **Exact steps for others to reproduce the error** 1. Add a default cube, subdivide in edit mode a couple of times. 2. Paint a mask in sculpt mode. 3. Enter object mode, add a multiresolution modifier, and press "subdivide." 4. Re-enter sculpt mode. The mask will be gone on the new sculpt level (but present on the lower one). 5. As a bonus, press subdivide again while in sculpt mode. A 4.0.2-style broken mask will be added to the new sculpt level.
Paul added the
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 labels 2024-06-27 21:10:44 +02:00
Pratik Borhade commented 2024-06-28 07:51:26 +02:00
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Thanks for the report. Can confirm. Appears to be failing in older versions as well (3.6 LTS)

Thanks for the report. Can confirm. Appears to be failing in older versions as well (3.6 LTS)
Pratik Borhade added
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Sculpt, Paint & Texture
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 labels 2024-06-28 07:51:39 +02:00
Philipp Oeser commented 2024-06-28 08:45:59 +02:00
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This broke between 3.3 and 3.4

This broke between 3.3 and 3.4
Philipp Oeser commented 2024-06-28 08:56:20 +02:00
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Will give it a quick bisect

Will give it a quick bisect
Philipp Oeser commented 2024-06-28 11:38:54 +02:00
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Caused by b5f7af31d6

CC @HooglyBoogly

Got a fix for this though, will post shortly.

Caused by b5f7af31d6d474c3b455bacda079969fde7c0962 CC @HooglyBoogly Got a fix for this though, will post shortly.
Philipp Oeser commented 2024-06-28 11:52:44 +02:00
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Fix is up, see !123888

Fix is up, see !123888
Bart van der Braak added
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 labels 2024-08-14 12:58:21 +02:00
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