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Maniphest T99936

Regression: Unable to add curve hair on the left side of the model.
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Description

System Information
Operating system: Linux-5.15.14-1-lts-x86_64-with-glibc2.33 64 Bits
Graphics card: NVIDIA GeForce RTX 2070/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 495.46

Blender Version
Broken: version: 3.3.0 Alpha, branch: master, commit date: 2022-07-22 21:12, hash: rB82467e5dcf98
Caused by rB1f94b56d7744: Curves: support sculpting on deformed curves

Short description of error
Cannot paint with mirror X.
If I uncheck X mirror I can't add curve hair on the left side of the model.

Exact steps for others to reproduce the error

  1. Selected the Curves Object
  2. Switch to Sculpt mode in the 3d viewport.
  3. Select the add button of the tool. And paint with X mirror checked.

lapin_belier_330_bug-00.blend2 MBDownload

Revisions and Commits

rB Blender
rB1c05f30e4dcb Curves: add warning when invalid uv map is used when adding curves

Related Objects

Event Timeline

Damien Monteillard (lastrodamo) created this task.Jul 24 2022, 12:08 AM
Damien Monteillard (lastrodamo) edited projects, added BF Blender (3.3); removed BF Blender.
Pratik Borhade (PratikPB2123) changed the task status from Needs Triage to Confirmed.Jul 24 2022, 8:01 AM
Pratik Borhade (PratikPB2123) edited projects, added BF Blender; removed BF Blender (3.3).
Pratik Borhade (PratikPB2123) added a subscriber: Pratik Borhade (PratikPB2123).

Thanks for the report. I can confirm. Checking...

Pratik Borhade (PratikPB2123) triaged this task as High priority.Jul 24 2022, 8:20 AM
Pratik Borhade (PratikPB2123) added projects: Geometry Nodes, Sculpt, Paint & Texture.
Pratik Borhade (PratikPB2123) added a subscriber: Jacques Lucke (JacquesLucke).

First bad commit is: rB1f94b56d7744: Curves: support sculpting on deformed curves
cc @Jacques Lucke (JacquesLucke)

Pratik Borhade (PratikPB2123) updated the task description. (Show Details)Jul 24 2022, 8:20 AM
Pratik Borhade (PratikPB2123) renamed this task from Add Curve Hair with X Mirror to Regression: Unable to add curve hair on the left side of the model..Jul 24 2022, 8:31 AM
Pratik Borhade (PratikPB2123) updated the task description. (Show Details)
Hans Goudey (HooglyBoogly) changed the subtype of this task from "Report" to "Bug".Jul 25 2022, 3:29 AM
Jacques Lucke (JacquesLucke) added a commit: rB1c05f30e4dcb: Curves: add warning when invalid uv map is used when adding curves.Jul 25 2022, 11:42 AM
Jacques Lucke (JacquesLucke) closed this task as Resolved.Jul 25 2022, 11:44 AM
Jacques Lucke (JacquesLucke) claimed this task.

This didn't work, because the Add and Density brush now require a uv map on the surface that can be used to store attachment information. In your case you can recreate the uv map so that there are no overlapping islands. Or you can create a separate uv map just for the surface attachment.

I added a warning, so that this doesn't fail silently anymore.