Vertex group locking does not prevent modification by tools like Normalize All as expected #46611

New Issue

Colby Klein · 2015-10-27T01:51:22+01:00

Colby Klein commented

2015-10-27 01:51:22 +01:00

Short description of error
Locked vertex groups get modified by tools, despite not being editable by the user. This breaks user expectations and creates situations where important tools become useless (i.e. If you normalize all when using vertex groups for modifier influences, they get wrecked.)

Locked groups should not be editable, without exception.

Blender Version
Broken: 2.76
Worked: probably never?

Steps to reproduce
- select "normalize me" vertex group in attached .blend.
- go to weight paint mode
- use "normalize all" tool

Results:
expected - Nothing happens, or if there are unlocked groups the normalization only affects them. It does not make sense that the tools would affect groups you cannot edit yourself.
actual - Outline group gets normalized with "normalize me", destroying the weighting in "outline". Outline thickness has changed.

I regularly make groups like this for modifier influences, so effectively I cannot use the normalize all tool if I've set any of this up prior to rigging (which is nearly always).

outline-example.blend

**Short description of error** Locked vertex groups get modified by tools, despite not being editable by the user. This breaks user expectations and creates situations where important tools become useless (i.e. If you normalize all when using vertex groups for modifier influences, they get wrecked.) Locked groups should not be editable, without exception. **Blender Version** Broken: 2.76 Worked: probably never? **Steps to reproduce** - select "normalize me" vertex group in attached .blend. - go to weight paint mode - use "normalize all" tool **Results:** **expected** - Nothing happens, or if there are unlocked groups the normalization only affects them. It does not make sense that the tools would affect groups you cannot edit yourself. **actual** - Outline group gets normalized with "normalize me", destroying the weighting in "outline". Outline thickness has changed. I regularly make groups like this for modifier influences, so effectively I cannot use the normalize all tool if I've set any of this up prior to rigging (which is nearly always). [outline-example.blend](https://archive.blender.org/developer/F247624/outline-example.blend)

Colby Klein commented

2015-10-27 01:51:23 +01:00

Changed status to: 'Open'

Colby Klein commented

2015-10-27 01:51:23 +01:00

Added subscriber: @ColbyKlein

Alexander Gavrilov commented

2015-10-27 17:57:22 +01:00

Added subscriber: @angavrilov

Alexander Gavrilov commented

2015-10-27 17:57:22 +01:00

In contrast, auto-normalize feature when painting seems to respect locked groups (especially when you paint to increase value), and wouldn't take into account groups that aren't associated with bones.