misiing and doubled objects in BMVert.link_* sequences #41786

New Issue

Michał Pilch · 2014-09-11T13:19:13+02:00

Michał Pilch commented

2014-09-11 13:19:13 +02:00

System Information
Debian Linux Unstable (Sid 09.2014), Radeon HD 6570

Blender Version
Broken: 2.71, 9337574

Short description of error

**Exact steps for others to reproduce the
bug_report.blend

**System Information** Debian Linux Unstable (Sid 09.2014), Radeon HD 6570 **Blender Version** Broken: 2.71, 9337574 **Short description of error** **Exact steps for others to reproduce the [bug_report.blend](https://archive.blender.org/developer/F109876/bug_report.blend)

Michał Pilch commented

2014-09-11 13:19:13 +02:00

Changed status to: 'Open'

Michał Pilch commented

2014-09-11 13:19:13 +02:00

Added subscriber: @Pilchu

Michał Pilch commented

2014-09-11 13:19:32 +02:00

Removed subscriber: @Pilchu

Michał Pilch commented

2014-09-11 13:19:48 +02:00

Added subscriber: @Pilchu

Bastien Montagne commented

2014-09-11 13:23:40 +02:00

Added subscriber: @mont29

Bastien Montagne commented

2014-09-11 13:23:40 +02:00

Please make a complete bug report!!! I nearly closed this as invalid!

Michał Pilch commented

2014-09-11 13:42:52 +02:00

Sorry. I've accidentaly pressed shift with enter before I've described a problem.
I can't edit this task so here is the complete description:

Short description of error:
When running script some vertices has in their linked sequences doubled faces/loops and some of them are missing.

Exact steps for others to reproduce
On attached file we have two objects. One is affect of used 'Slice Mesh' operator included to the file and its output is:

**<BMLoop(0x7fef57ddd7c0), index=-1, vert=0x7fef59ad5ed8/287, edge=0x7fef598ee360/113, face=0x7fef59f56a30/412>**
<BMLoop(0x7fef57dd5db0), index=-1, vert=0x7fef59ad5ed8/287, edge=0x7fef598f2960/337, face=0x7fef59f574b0/460>
<BMLoop(0x7fef57dd5bb8), index=-1, vert=0x7fef59ad5ed8/287, edge=0x7fef598f9e40/711, face=0x7fef59f57478/459>
**<BMLoop(0x7fef57ddd7c0), index=-1, vert=0x7fef59ad5ed8/287, edge=0x7fef598ee360/113, face=0x7fef59f56a30/412>**
<BMLoop(0x7fef57ddd928), index=-1, vert=0x7fef59ad5ed8/287, edge=0x7fef598fd270/878, face=0x7fef59f57168/445>
<BMLoop(0x7fef57ddfdb8), index=-1, vert=0x7fef59ad5ed8/287, edge=0x7fef598fe3f0/934, face=0x7fef59f57130/444>

So face with index 412 is doubled but there is no face with index 413 (this is the face that was undone on this vertex)
After running operator running code from console:

import bmesh
bm = bmesh.from_edit_mesh(bpy.context.object.data)
for l in bm.verts[287].link_loops:
    print(l)

gives proper output:

<BMLoop(0x7fef57c379d0), index=-1, vert=0x7fef597ceed8/287, edge=0x7fef57eb6360/113, face=0x7fef5992ba30/412>
<BMLoop(0x7fef57c39a70), index=-1, vert=0x7fef597ceed8/287, edge=0x7fef57ec5270/878, face=0x7fef5992c168/445>
<BMLoop(0x7fef57c39950), index=-1, vert=0x7fef597ceed8/287, edge=0x7fef57ec63f0/934, face=0x7fef5992c130/444>
<BMLoop(0x7fef57c37b38), index=-1, vert=0x7fef597ceed8/287, edge=0x7fef57a82870/2740, face=0x7fef5992ba68/413>

I've noticed that it occures only on vertices from original mesh that lays on intersecting planes.

PS.
Sorry for my english.

Sorry. I've accidentaly pressed shift with enter before I've described a problem. I can't edit this task so here is the complete description: **Short description of error:** When running script some vertices has in their linked sequences doubled faces/loops and some of them are missing. **Exact steps for others to reproduce** On attached file we have two objects. One is affect of used 'Slice Mesh' operator included to the file and its output is: ``` **<BMLoop(0x7fef57ddd7c0), index=-1, vert=0x7fef59ad5ed8/287, edge=0x7fef598ee360/113, face=0x7fef59f56a30/412>** <BMLoop(0x7fef57dd5db0), index=-1, vert=0x7fef59ad5ed8/287, edge=0x7fef598f2960/337, face=0x7fef59f574b0/460> <BMLoop(0x7fef57dd5bb8), index=-1, vert=0x7fef59ad5ed8/287, edge=0x7fef598f9e40/711, face=0x7fef59f57478/459> **<BMLoop(0x7fef57ddd7c0), index=-1, vert=0x7fef59ad5ed8/287, edge=0x7fef598ee360/113, face=0x7fef59f56a30/412>** <BMLoop(0x7fef57ddd928), index=-1, vert=0x7fef59ad5ed8/287, edge=0x7fef598fd270/878, face=0x7fef59f57168/445> <BMLoop(0x7fef57ddfdb8), index=-1, vert=0x7fef59ad5ed8/287, edge=0x7fef598fe3f0/934, face=0x7fef59f57130/444> ``` So face with index 412 is doubled but there is no face with index 413 (this is the face that was undone on this vertex) After running operator running code from console: ``` import bmesh bm = bmesh.from_edit_mesh(bpy.context.object.data) for l in bm.verts[287].link_loops: print(l) ``` gives proper output: ``` <BMLoop(0x7fef57c379d0), index=-1, vert=0x7fef597ceed8/287, edge=0x7fef57eb6360/113, face=0x7fef5992ba30/412> <BMLoop(0x7fef57c39a70), index=-1, vert=0x7fef597ceed8/287, edge=0x7fef57ec5270/878, face=0x7fef5992c168/445> <BMLoop(0x7fef57c39950), index=-1, vert=0x7fef597ceed8/287, edge=0x7fef57ec63f0/934, face=0x7fef5992c130/444> <BMLoop(0x7fef57c37b38), index=-1, vert=0x7fef597ceed8/287, edge=0x7fef57a82870/2740, face=0x7fef5992ba68/413> ``` I've noticed that it occures only on vertices from original mesh that lays on intersecting planes. PS. Sorry for my english.

Bastien Montagne commented

2014-09-11 14:01:03 +02:00

OK, no problem. :)

Campbell Barton was assigned by Bastien Montagne

2014-09-12 12:04:58 +02:00

Bastien Montagne commented

2014-09-12 12:04:58 +02:00

This looks like some kind of missing update in bmesh? Not quite sure though, Campbell, this is your playground! :)

Campbell Barton commented

2014-09-15 07:15:26 +02:00

Not sure how to redo this report,

I load bug_report.blend and run the script paper_models_tools.py

Then run the script:

  import bpy
  import bmesh
  bm = bmesh.from_edit_mesh(bpy.context.object.data)
  for l in bm.verts[287].link_loops:
      print(l)

It prints

  <BMLoop(0x61827a0), index=1400, vert=0x6d82c28/287, edge=0x474cdc0/113, face=0x62e8960/412>
  <BMLoop(0x6184840), index=1516, vert=0x6d82c28/287, edge=0x475bcd0/878, face=0x62e9098/445>
  <BMLoop(0x6184720), index=1512, vert=0x6d82c28/287, edge=0x475ce50/934, face=0x62e9060/444>
  <BMLoop(0x6182908), index=1405, vert=0x6d82c28/287, edge=0x5dbdc10/2740, face=0x62e8998/413>

Do I need to do some other steps?

Not sure how to redo this report, I load `bug_report.blend` and run the script `paper_models_tools.py` Then run the script: ``` import bpy import bmesh bm = bmesh.from_edit_mesh(bpy.context.object.data) for l in bm.verts[287].link_loops: print(l) ``` It prints ``` <BMLoop(0x61827a0), index=1400, vert=0x6d82c28/287, edge=0x474cdc0/113, face=0x62e8960/412> <BMLoop(0x6184840), index=1516, vert=0x6d82c28/287, edge=0x475bcd0/878, face=0x62e9098/445> <BMLoop(0x6184720), index=1512, vert=0x6d82c28/287, edge=0x475ce50/934, face=0x62e9060/444> <BMLoop(0x6182908), index=1405, vert=0x6d82c28/287, edge=0x5dbdc10/2740, face=0x62e8998/413> ``` Do I need to do some other steps?

Bastien Montagne commented

2014-09-22 11:12:59 +02:00

Changed status from 'Open' to: 'Archived'

Bastien Montagne closed this issue

2014-09-22 11:12:59 +02:00

Bastien Montagne commented

2014-09-22 11:12:59 +02:00

One week without news.

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misiing and doubled objects in BMVert.link_* sequences #41786