Vertex slide redo problems when clamp is on #50419

Closed
opened 2017-01-12 11:20:14 +01:00 by Cenek Strichel · 8 comments

Blender Version
2.78a

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

slide UV bug.gif

bug plane test.blend

**Blender Version** 2.78a **Short description of error** If you change Correct UVs parameter in Slider operator it moves with vertex. It is working fine on flat surfaces. ![slide UV bug.gif](https://archive.blender.org/developer/F431659/slide_UV_bug.gif) [bug plane test.blend](https://archive.blender.org/developer/F431660/bug_plane_test.blend)
Author

Changed status to: 'Open'

Changed status to: 'Open'
Author

Added subscriber: @Cenda

Added subscriber: @Cenda

Added subscriber: @dfelinto

Added subscriber: @dfelinto

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: bug_vertex_slide.blend
  • 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.

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: [bug_vertex_slide.blend](https://archive.blender.org/developer/F431673/bug_vertex_slide.blend) * 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.
Author

Yes it same bug. Thanks.

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)

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)

Changed status from 'Open' to: 'Archived'

Changed status from 'Open' to: 'Archived'
Dalai Felinto self-assigned this 2017-01-12 17:05:35 +01:00

This is a limitation of our system, added to the todo list: https://wiki.blender.org/index.php/Dev:Source/Development/Todo/Tools#Transform

This is a limitation of our system, added to the todo list: https://wiki.blender.org/index.php/Dev:Source/Development/Todo/Tools#Transform
Dalai Felinto changed title from Slide UV correct move vertices to Vertex slide redo problems when clamp is on 2017-01-12 17:05:57 +01:00
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Reference: blender/blender#50419
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