Edge Split operator splits unselected edges #35308

New Issue

Manfred Giebler · 2013-05-11T12:21:54+02:00

Manfred Giebler commented

2013-05-11 12:21:54 +02:00

%%%--- Operating System, Graphics card ---
Reproduced on Windows XP (32 bit), Debian GNU/Linux 7.0 (64 bit), with AMD and Nvidia graphics.

- Blender version with error, and version that worked ---

Release 2.67.0 (r56533), official binaries from download.blender.org. Did not occur in previous release.

- Short description of error ---

Edge Split operator splits unselected edges.

- Steps for others to reproduce the error (preferably based on attached .blend file) ---

Add a new mesh plane, switch to edit mode, subdivide a few times. Select an edge loop, choose Mesh-->Edges-->Edge Split from the menu.

Expected: The plane should be split along the selected edges.

Observed: Many other (unselected) edges get split as well.

The attached image shows the plane with a Smooth modifier attached to create visible gaps between split edges.
%%%

%%%--- Operating System, Graphics card --- Reproduced on Windows XP (32 bit), Debian GNU/Linux 7.0 (64 bit), with AMD and Nvidia graphics. - Blender version with error, and version that worked --- Release 2.67.0 (r56533), official binaries from download.blender.org. Did not occur in previous release. - Short description of error --- Edge Split operator splits unselected edges. - Steps for others to reproduce the error (preferably based on attached .blend file) --- Add a new mesh plane, switch to edit mode, subdivide a few times. Select an edge loop, choose Mesh-->Edges-->Edge Split from the menu. Expected: The plane should be split along the selected edges. Observed: Many other (unselected) edges get split as well. The attached image shows the plane with a Smooth modifier attached to create visible gaps between split edges. %%%

Manfred Giebler commented

2013-05-11 12:21:54 +02:00

Changed status to: 'Open'

Campbell Barton commented

2013-05-13 05:40:32 +02:00

%%%Can't redo this bug - tried on grid and subdivided plane, both directions, after running various other tools.

I'm guessing it could be caused by not clearing internal tags before operating on each edge.

Could you post a blend file?%%%

%%%Can't redo this bug - tried on grid and subdivided plane, both directions, after running various other tools. I'm guessing it could be caused by not clearing internal tags before operating on each edge. Could you post a blend file?%%%

Manfred Giebler commented

2013-05-13 11:37:49 +02:00

%%%I just did some additional tests and discovered that the edge selection method makes all the difference here. Indeed, for edge loops there is Loop Select (holding down Alt) which does not trigger the bug.

Try selecting an arbitrary edge path using the Shortest Path Select method: select an edge that touches one end of the plane, then hold down Ctrl and select an edge touching the opposite end. A subsequent Edge Split will fail.

I can't post a blend file because if I save and reload the file between selecting and splitting, the problem does not occur. Also, if I drop out of edit mode between selecting and splitting, things will work as expected. It seems that Shortest Path Select messes up the internal representation of the mesh, and saving the file or leaving edit mode has a sanitizing effect.

By the way, contrary to what I said earlier, this bug does exist in 2.66a too.%%%

%%%I just did some additional tests and discovered that the edge selection method makes all the difference here. Indeed, for edge *loops* there is Loop Select (holding down Alt) which does not trigger the bug. Try selecting an arbitrary edge *path* using the Shortest Path Select method: select an edge that touches one end of the plane, then hold down Ctrl and select an edge touching the opposite end. A subsequent Edge Split will fail. I can't post a blend file because if I save and reload the file between selecting and splitting, the problem does not occur. Also, if I drop out of edit mode between selecting and splitting, things will work as expected. It seems that Shortest Path Select messes up the internal representation of the mesh, and saving the file or leaving edit mode has a sanitizing effect. By the way, contrary to what I said earlier, this bug does exist in 2.66a too.%%%

Campbell Barton commented

2013-05-13 14:09:34 +02:00

%%%fixed r56760.%%%

Campbell Barton commented

2013-05-13 14:09:34 +02:00

Changed status from 'Open' to: 'Resolved'

Campbell Barton closed this issue

2013-05-13 14:09:34 +02:00

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Edge Split operator splits unselected edges #35308