Edge slide with X-mirror and Topology mirror crashes #66683

New Issue

Edgar · 2019-07-11T01:14:21+02:00

Edgar commented

2019-07-11 01:14:21 +02:00

System Information
Operating system: Windows 10
Graphics card: GeForce GTX 980

Blender Version
Broken: 2.80, bb7b741d2f, Beta, 2019-07-10, as found on splash screen

Short description of error
Using edge slide at the center line of the model while the X-Mirror and Topology Mirror options are turned on is causing crashes.

Exact steps for others to reproduce the error
Using a symmetrical model with only a multires modifier, have X-Mirror and Topology mirror turned on. In edit mode, grab a few edges starting from the center of the model and use edge slide. This should cause a crash.

**System Information** Operating system: Windows 10 Graphics card: GeForce GTX 980 **Blender Version** Broken: 2.80, bb7b741d2f1c, Beta, 2019-07-10, as found on splash screen **Short description of error** Using edge slide at the center line of the model while the X-Mirror and Topology Mirror options are turned on is causing crashes. **Exact steps for others to reproduce the error** Using a symmetrical model with only a multires modifier, have X-Mirror and Topology mirror turned on. In edit mode, grab a few edges starting from the center of the model and use edge slide. This should cause a crash.

Edgar commented

2019-07-11 01:14:21 +02:00

Added subscriber: @EdgarAbreu-Lanza

Marcin Twarowski commented

2019-07-11 08:35:07 +02:00

Added subscriber: @MarcinTwarowski

Marcin Twarowski commented

2019-07-11 08:35:07 +02:00

I cannot reproduce the crash in 676543d91f However "Topology/Mirror" doesn't seem to work?
edge_slide_mirror.blend

I cannot reproduce the crash in 676543d91f5c However "Topology/Mirror" doesn't seem to work? [edge_slide_mirror.blend](https://archive.blender.org/developer/F7590038/edge_slide_mirror.blend)

Philipp Oeser commented

2019-07-11 11:19:07 +02:00

Added subscriber: @lichtwerk

Philipp Oeser commented

2019-07-11 11:19:07 +02:00

Also cannot get it to crash.
@EdgarAbreu-Lanza: mind sharing a .blend with the right stuff selected, so we can reproduce?

@MarcinTwarowski : please only one issue per report, if there is something wrong with Topology mirror, please open a new report for this

Also cannot get it to crash. @EdgarAbreu-Lanza: mind sharing a .blend with the right stuff selected, so we can reproduce? @MarcinTwarowski : please only one issue per report, if there is something wrong with Topology mirror, please open a new report for this

Marcin Twarowski commented

2019-07-11 11:55:46 +02:00

if there is something wrong with Topology mirror, please open a new report for this

2.79 manual says :

The Topology Mirror functionality will work more reliably on mesh geometry which is more detailed. If you use very simple geometry, for example a Cube or UV Sphere, the Topology Mirror option will often not work.

So I guess it's not a bug.

> if there is something wrong with Topology mirror, please open a new report for this [2.79 manual says ](https://docs.blender.org/manual/en/latest/modeling/meshes/editing/mesh_options.html#topology-mirror): > The Topology Mirror functionality will work more reliably on mesh geometry which is more detailed. If you use very simple geometry, for example a Cube or UV Sphere, the Topology Mirror option will often not work. So I guess it's not a bug.

Edgar commented

2019-07-13 00:32:03 +02:00

Would it be alright if I shared a video of the bug? I would prefer not to share the model.

Here is the video https://www.youtube.com/watch?v=5rd57y0ONrE&feature=youtu.be

Would it be alright if I shared a video of the bug? I would prefer not to share the model. Here is the video https://www.youtube.com/watch?v=5rd57y0ONrE&feature=youtu.be

Marcin Twarowski commented

2019-07-13 11:36:35 +02:00

Ok. Mirror topology doesn't work with simple meshes. So I tried it with Suzanne with multires and indeed it crashes. Just try edge slide on a selected edge:
edge_slide_mirror_multires.blend
Tested with release candidate.

Ok. Mirror topology doesn't work with simple meshes. So I tried it with Suzanne with multires and indeed it crashes. Just try edge slide on a selected edge: [edge_slide_mirror_multires.blend](https://archive.blender.org/developer/F7605194/edge_slide_mirror_multires.blend) Tested with release candidate.

Bastien Montagne commented

2019-07-23 11:53:47 +02:00

Added subscriber: @mont29

Bastien Montagne commented

2019-07-23 11:53:47 +02:00

@EdgarAbreu-Lanza videos are typically useless for us, besides a few specific cases, we need a .blend file to quickly reproduce the issue. Luckily @MarcinTwarowski did the work here!

Can confirm the crash:

1  sub_v3_v3v3                     math_vector_inline.c 441  0x56374371838f 
2  len_squared_v3v3                math_vector_inline.c 951  0x56374371b502 
3  slide_origdata_interp_data_vert transform.c          6518 0x563743781ccc 
4  slide_origdata_interp_data      transform.c          6662 0x56374378f1f0 
5  projectEdgeSlideData            transform.c          7711 0x5637437c20cf 
6  recalcData_objects              transform_generics.c 893  0x5637438d4ede 
7  recalcData                      transform_generics.c 1241 0x5637438db8cd 
8  applyEdgeSlide                  transform.c          8136 0x5637437c7e2a 
9  transformApply                  transform.c          2755 0x5637437413f8 
10 transform_modal                 transform_ops.c      428  0x563743934fc4 
11 wm_handler_operator_call        wm_event_system.c    2186 0x563740cf5e22 
12 wm_handlers_do_intern           wm_event_system.c    2897 0x563740cfd930 
13 wm_handlers_do                  wm_event_system.c    2945 0x563740cfdce2 
14 wm_event_do_handlers            wm_event_system.c    3323 0x563740d02ce5 
15 WM_main                         wm.c                 417  0x563740ccabc6 
16 main                            creator.c            500  0x56373ef6f77a

@EdgarAbreu-Lanza videos are typically useless for us, besides a few specific cases, we need a .blend file to quickly reproduce the issue. Luckily @MarcinTwarowski did the work here! Can confirm the crash: ``` 1 sub_v3_v3v3 math_vector_inline.c 441 0x56374371838f 2 len_squared_v3v3 math_vector_inline.c 951 0x56374371b502 3 slide_origdata_interp_data_vert transform.c 6518 0x563743781ccc 4 slide_origdata_interp_data transform.c 6662 0x56374378f1f0 5 projectEdgeSlideData transform.c 7711 0x5637437c20cf 6 recalcData_objects transform_generics.c 893 0x5637438d4ede 7 recalcData transform_generics.c 1241 0x5637438db8cd 8 applyEdgeSlide transform.c 8136 0x5637437c7e2a 9 transformApply transform.c 2755 0x5637437413f8 10 transform_modal transform_ops.c 428 0x563743934fc4 11 wm_handler_operator_call wm_event_system.c 2186 0x563740cf5e22 12 wm_handlers_do_intern wm_event_system.c 2897 0x563740cfd930 13 wm_handlers_do wm_event_system.c 2945 0x563740cfdce2 14 wm_event_do_handlers wm_event_system.c 3323 0x563740d02ce5 15 WM_main wm.c 417 0x563740ccabc6 16 main creator.c 500 0x56373ef6f77a ```

Edgar commented

2019-07-23 23:12:45 +02:00

Of course, you guys need the info. My bad. I'll keep that in mind if I need to report bugs in the future.