Normalize Vertex Groups while Armature modifier is hidden #110946

New Issue

Fynn · 2023-08-09T11:12:40+02:00

Fynn commented

2023-08-09 11:12:40 +02:00

System Information
Operating system: MacOS 13.4 (22F66) Ventura
Graphics card: Apple M2

Blender Version
Broken: 3.6.1, 3.6.0
Worked: 3.5.1

Short description of error
Normalizing all vertex groups while Armature modifiers are present with show_viewport disabled will result in the following error:

Traceback (most recent call last):
  File "<blender_console>", line 1, in <module>
  File "/Applications/Blender361.app/Contents/Resources/3.6/scripts/modules/bpy/ops.py", line 113, in __call__
    ret = _op_call(self.idname_py(), None, kw)
RuntimeError: Error: No vertex groups to operate on

Exact steps for others to reproduce the error
Try this on any object with armature modifiers and the respective vertex groups.

Disable show_viewport on the modifier(s).
Call bpy.ops.object.vertex_group_normalize_all(lock_active=False) (Just noticed, this also happens when calling the operator from the UI)

I tested this both on a complex rig (Rainv2) and the default cube bound to a single bone.

**System Information** Operating system: MacOS 13.4 (22F66) Ventura Graphics card: Apple M2 **Blender Version** Broken: 3.6.1, 3.6.0 Worked: 3.5.1 **Short description of error** Normalizing all vertex groups while Armature modifiers are present with show_viewport disabled will result in the following error: ``` Traceback (most recent call last): File "<blender_console>", line 1, in <module> File "/Applications/Blender361.app/Contents/Resources/3.6/scripts/modules/bpy/ops.py", line 113, in __call__ ret = _op_call(self.idname_py(), None, kw) RuntimeError: Error: No vertex groups to operate on ``` **Exact steps for others to reproduce the error** Try this on any object with armature modifiers and the respective vertex groups. 1. Disable `show_viewport` on the modifier(s). 2. Call `bpy.ops.object.vertex_group_normalize_all(lock_active=False)` (Just noticed, this also happens when calling the operator from the UI) I tested this both on a complex rig (Rainv2) and the default cube bound to a single bone.

Fynn added this to the 3.6 LTS milestone 2023-08-09 11:12:40 +02:00

Fynn added the

labels 2023-08-09 11:12:41 +02:00

YimingWu commented

2023-08-09 12:22:00 +02:00

Can confirm. The modifier has to be visible for this to take effect.

BKE_object_defgroup_subset_from_select_type will give r_subset_count==0 cc @ideasman42

Can confirm. The modifier has to be visible for this to take effect. `BKE_object_defgroup_subset_from_select_type` will give `r_subset_count==0` cc @ideasman42

YimingWu added

and removed

labels 2023-08-09 12:22:15 +02:00

Pratik Borhade commented

2023-08-10 09:24:28 +02:00

Can we raise the priority if this is a regression?