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Vertex group doesn't add vertices from knife tool
Confirmed, LowPublicTO DO

Description

System Information
Win7 32bit

Blender Version
Broken: 2.78

Short description of error
Knife project doesn't take existing vertex group into account.

Exact steps for others to reproduce the error
Last cutting was done by simple Knife to show the difference

In .Blend hit Knife project

Event Timeline

Bastien Montagne (mont29) lowered the priority of this task from 90 to 30.Feb 6 2017, 3:21 PM

Am tired of repeating this a bit:

Please follow our submission template and guidelines and make a complete, valid bug report, with required info, precise description of the issue, precise steps to reproduce it, small and simple .blend and/or other files to do so if needed, etc.
Videos and/or links to external sites etc.
are not acceptable as bug report (they can be provided as additional information only).

I am sorry.
In .Blend hit Knife project

Bastien Montagne (mont29) changed the task status from Unknown Status to Unknown Status.Feb 6 2017, 5:39 PM
Bastien Montagne (mont29) claimed this task.

Hmmm… do not agree here, knife have same behavior as knife project here: it interpolates vgroups when creating vertices on existing edges, not when creating vertices on new edges (you can see that with knife by drag-drawing complex line cutting itself several times, vertices created at intersections of non-yet-existing edges also ignore existing vgroups).

Thanks for the report, but will consider this a TODO, would be nice to interpolate vgroups based on neightbor vertices, but that’s not technically a bug currently imho. Added entry to https://wiki.blender.org/index.php/Dev:Source/Development/Todo/Tools#Mesh_Editing.

Campbell Barton (campbellbarton) renamed this task from Vertex group doesn't add vertices from knife project tool to Vertex group doesn't add vertices from knife tool.Sep 3 2019, 4:06 AM
Campbell Barton (campbellbarton) changed the task status from Unknown Status to Unknown Status.
Campbell Barton (campbellbarton) lowered the priority of this task from 30 to Low.
Campbell Barton (campbellbarton) edited a custom field.