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Vertex slide redo problems when clamp is on
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Blender Version

Short description of error
If you change Correct UVs parameter in Slider operator it moves with vertex. It is working fine on flat surfaces.


To Do

Event Timeline

Dalai Felinto (dfelinto) lowered the priority of this task from Needs Triage by Developer to Confirmed, Medium.Jan 12 2017, 12:46 PM

Correct me if I'm wrong, but the bug you are reporting is:

The new vertex position is discarded when you change the operator (Shift+V) settings after you ran it  (F6).

How to reproduce the bug:

  • Open:
  • Shift +V, drag it to the right
  • Change "Correct UV" (or any other) parameter from the Operator panel (or F6)

Now the vertex "jumps" to the left (not even the original position, but like a flipped x position).

Note, if you draw to the left instead of the right it works fine.

Yes it same bug. Thanks.

The problem is with the "clamp" option. When you start the operator with "clamp" turned off, things work fine. More specifically:

TransDataVertSlideVert.co_link_curr is not reset to zero when we re-do the operator, and not recalculated (calcVertSlideMouseActiveEdges() is only called on mousemove)

Dalai Felinto (dfelinto) closed this task as Archived.Jan 12 2017, 5:05 PM
Dalai Felinto (dfelinto) claimed this task.

This is a limitation of our system, added to the todo list:

Dalai Felinto (dfelinto) renamed this task from Slide UV correct move vertices to Vertex slide redo problems when clamp is on.Jan 12 2017, 5:05 PM
Dalai Felinto (dfelinto) changed Type from Bug to To Do.