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Color Attributes linked between unliked object data when using sculpt mode #113665

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opened 2023-10-13 12:36:34 +02:00 by Julien Kaspar · 3 comments
Julien Kaspar commented 2023-10-13 12:36:34 +02:00
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System Information
Operating system: Linux-6.5.6-gentoo-x86_64-AMD_Ryzen_Threadripper_1950X_16-Core_Processor-with-glibc2.37 64 Bits, X11 UI
Graphics card: AMD Radeon RX 7900 XT (gfx1100, LLVM 16.0.6, DRM 3.54, 6.5.6-gentoo) AMD 4.6 (Core Profile) Mesa 23.2.1

Blender Version
Broken: version: 4.1.0 Alpha, branch: main, commit date: 2023-10-12 18:56, hash: 4320f1a21750
Worked: 3.5.1

Propably caused by 7eee378ecc

Short description of error
When duplicating an object and painting color attributes on either in sculpt mode, the color attribute will be changed on both.
This is only observable once switching to a non-object mode on the other object.
If any of the objects are ever painted in vertex paint mode, they are no longer in synch and the bug will never occur again.

Exact steps for others to reproduce the error

  • Enter sculpt mode
  • Paint a color attribute with the paint brush
  • In object mode, duplicate the object
  • Paint more in sculpt mode in either object
  • Switch to the other object (notice how the colors are updated to the latest changes of the previous object)
  • Paint some more in vertex paint mode
  • Switch to the other object (Now the bug didn't occur)
**System Information** Operating system: Linux-6.5.6-gentoo-x86_64-AMD_Ryzen_Threadripper_1950X_16-Core_Processor-with-glibc2.37 64 Bits, X11 UI Graphics card: AMD Radeon RX 7900 XT (gfx1100, LLVM 16.0.6, DRM 3.54, 6.5.6-gentoo) AMD 4.6 (Core Profile) Mesa 23.2.1 **Blender Version** Broken: version: 4.1.0 Alpha, branch: main, commit date: 2023-10-12 18:56, hash: `4320f1a21750` Worked: 3.5.1 Propably caused by 7eee378eccc8 **Short description of error** When duplicating an object and painting color attributes on either in sculpt mode, the color attribute will be changed on both. This is only observable once switching to a non-object mode on the other object. If any of the objects are ever painted in vertex paint mode, they are no longer in synch and the bug will never occur again. **Exact steps for others to reproduce the error** - Enter sculpt mode - Paint a color attribute with the paint brush - In object mode, duplicate the object - Paint more in sculpt mode in either object - Switch to the other object (notice how the colors are updated to the latest changes of the previous object) - Paint some more in vertex paint mode - Switch to the other object (Now the bug didn't occur)
Julien Kaspar added the
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 labels 2023-10-13 12:36:34 +02:00
Richard Antalik commented 2023-10-14 01:58:34 +02:00
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Here in both cases other object is updated to changes in previous. I have bit older build so will have to re-check.

Here in both cases other object is updated to changes in previous. I have bit older build so will have to re-check.
Philipp Oeser commented 2023-10-16 11:00:01 +02:00
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Can confirm, will check

Can confirm, will check
Philipp Oeser added
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Confirmed
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Sculpt, Paint & Texture
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Needs Triage
 labels 2023-10-16 11:02:10 +02:00
Philipp Oeser commented 2023-10-16 11:31:53 +02:00
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Pretty sure this is caused by attribute sharing 7eee378ecc

CC @JacquesLucke

Pretty sure this is caused by attribute sharing 7eee378eccc8 CC @JacquesLucke
Hans Goudey self-assigned this 2023-10-23 11:57:35 +02:00
Hans Goudey added
Type
Bug
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Type
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 labels 2023-10-24 19:30:10 +02:00
Blender Bot added
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 labels 2023-10-24 20:19:27 +02:00
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Reference: blender/blender#113665
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