Grease pencil doesn't inherit or create vertex groups when parenting to armature #116667

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Pierre_Schiller · 2023-12-31T06:34:44+01:00

Pierre_Schiller commented

2023-12-31 06:34:44 +01:00

System Information
Operating system: Windows-10-10.0.19045-SP0 64 Bits
Graphics card: NVIDIA GeForce RTX 3060/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 546.29

Blender Version
Broken: version: 3.6.7, branch: blender-v3.6-release, commit date: 2023-12-11 16:28, hash: cbd81f283d58
Worked: (2.82)

Short description of error
Grease pencil objects (being vertices) can't generate vertex groups when parented to an armature (rig)

Exact steps for others to reproduce the error

Create a Suzzane
Create a grease pencil empty object. Switch to draw mode
Change grease pencil options to "draw over surface". Draw on top of Suzzane
Create a metarig human armature. Move Suzzane to be the head to create appropriate weights (vertex groups). Click generate RIG.
Select the grease pencil object, shift click select the RIG, Ctrl+P to parent.
Select the rig, go to pose mode. Move the head. Grease pencil vertices stay behind. They didn't inherit any vertex group.
I'm attaching a video to explain this case.

The above workflow used to work in Blender 2.82. Here's a video>>

**System Information** Operating system: Windows-10-10.0.19045-SP0 64 Bits Graphics card: NVIDIA GeForce RTX 3060/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 546.29 **Blender Version** Broken: version: 3.6.7, branch: blender-v3.6-release, commit date: 2023-12-11 16:28, hash: `cbd81f283d58` Worked: (2.82) **Short description of error** Grease pencil objects (being vertices) can't generate vertex groups when parented to an armature (rig) **Exact steps for others to reproduce the error** 1. Create a Suzzane 2. Create a grease pencil empty object. Switch to draw mode 3. Change grease pencil options to "draw over surface". Draw on top of Suzzane 4. Create a metarig human armature. Move Suzzane to be the head to create appropriate weights (vertex groups). Click generate RIG. 5. Select the grease pencil object, shift click select the RIG, Ctrl+P to parent. 6. Select the rig, go to pose mode. Move the head. Grease pencil vertices stay behind. They didn't inherit any vertex group. I'm attaching a video to explain this case. The above workflow used to work in Blender 2.82. [Here's a video>>](https://youtu.be/NOT3d7W-71U?feature=shared&t=3358)

Grease pencil armature deform.mp4

7.1 MiB

Pierre_Schiller added the

labels 2023-12-31 06:34:44 +01:00

Pierre_Schiller changed title from ~~Grease pencil doesn't inherit or creates vertex groups when parenting to armature~~ to Grease pencil doesn't inherit or create vertex groups when parenting to armature

2023-12-31 06:35:05 +01:00

Iliya Katushenock added the

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Grease pencil doesn't inherit or create vertex groups when parenting to armature #116667