Knife Project - corners are not animated #100554

New Issue

Dmitri · 2022-08-22T10:31:46+02:00

Dmitri commented

2022-08-22 10:31:46 +02:00

System Information
Operating system: Windows 10
Graphics card: Intel HD 3000

Blender Version
Broken: 3.2.1
Worked: -

I'm using Knife Project tool on animated mesh. A plane is projected on a body model. Everything works well except plane corners (selected on the image) on body mesh. They are not animated (Vertex weights are missed?)

Exact steps for others to reproduce the error
After file is opened: Mesh > Knife Project. Switch to Object Mode.

KnifeProjectAnimated.blend

**System Information** Operating system: Windows 10 Graphics card: Intel HD 3000 **Blender Version** Broken: 3.2.1 Worked: - I'm using Knife Project tool on animated mesh. A plane is projected on a body model. Everything works well except plane corners (selected on the image) on body mesh. They are not animated (Vertex weights are missed?) ![image.png](https://archive.blender.org/developer/F13410812/image.png) **Exact steps for others to reproduce the error** After file is opened: Mesh > Knife Project. Switch to Object Mode. ![image.png](https://archive.blender.org/developer/F13410807/image.png) [KnifeProjectAnimated.blend](https://archive.blender.org/developer/F13410827/KnifeProjectAnimated.blend)

Dmitri commented

2022-08-22 10:31:46 +02:00

Added subscriber: @NB030

Philipp Oeser commented

2022-08-22 12:20:56 +02:00

Added subscriber: @lichtwerk

Philipp Oeser commented

2022-08-22 12:20:56 +02:00

Changed status from 'Needs Triage' to: 'Confirmed'

Philipp Oeser commented

2022-08-22 12:20:56 +02:00

Can confirm these verts dont end up in any vertex group, will check.

Philipp Oeser commented

2022-08-22 14:22:21 +02:00

So this seems to be a general problem of the knife tool/ knife project:
the original KnifeVerts dont get the weight interpolated from the face, whereas the splitting of edges goes fine.
Turn out this is a longstanding issue reported before (see #50604 (Knife Tool / Knife Project: Vertex group weights not added/interpolated for KnifeVerts created in faces (works correctly on verts created on existing/split edges)) -- I have updated the report description there).

Will merge these reports though.

So this seems to be a general problem of the knife tool/ knife project: the original KnifeVerts dont get the weight interpolated from the face, whereas the splitting of edges goes fine. Turn out this is a longstanding issue reported before (see #50604 (Knife Tool / Knife Project: Vertex group weights not added/interpolated for KnifeVerts created in faces (works correctly on verts created on existing/split edges)) -- I have updated the report description there). Will merge these reports though.

Philipp Oeser commented

2022-08-22 14:22:36 +02:00

Closed as duplicate of #50604

Philipp Oeser closed this issue

2022-08-22 14:22:36 +02:00

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Knife Project - corners are not animated #100554