Blender crashes when using detail flood fill (dyntopo) #89885

New Issue

Felipe · 2021-07-16T01:58:57+02:00

Felipe commented

2021-07-16 01:58:57 +02:00

System Information
Operating system: Windows-10-10.0.19041-SP0 64 Bits
Graphics card: NVIDIA GeForce GTX 1050 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 471.11

Blender Version
Broken: version: 2.93.0, branch: master, commit date: 2021-06-02 11:21, hash: 84da05a8b8
Worked: (newest version of Blender that worked as expected)

Short description of error
I use detail flood fill and the program closes

Exact steps for others to reproduce the error
Go on sculpting, and use detail flood fill

I have a face count of 5k polygons only.

creature_6 (1).blend
creature_6 (1).crash.txt

**System Information** Operating system: Windows-10-10.0.19041-SP0 64 Bits Graphics card: NVIDIA GeForce GTX 1050 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 471.11 **Blender Version** Broken: version: 2.93.0, branch: master, commit date: 2021-06-02 11:21, hash: `84da05a8b8` Worked: (newest version of Blender that worked as expected) **Short description of error** I use detail flood fill and the program closes **Exact steps for others to reproduce the error** Go on sculpting, and use detail flood fill I have a face count of 5k polygons only. [creature_6 (1).blend](https://archive.blender.org/developer/F10227878/creature_6__1_.blend) [creature_6 (1).crash.txt](https://archive.blender.org/developer/F10227900/creature_6__1_.crash.txt)

Felipe commented

2021-07-16 01:58:57 +02:00

Added subscriber: @al777

Pratik Borhade commented

2021-07-19 11:40:43 +02:00

Changed status from 'Needs Triage' to: 'Confirmed'

Pratik Borhade commented

2021-07-19 11:40:50 +02:00

Added subscriber: @PratikPB2123

Philipp Oeser commented

2021-07-19 12:52:42 +02:00

Added subscribers: @PabloDobarro, @mano-wii, @lichtwerk

Philipp Oeser commented

2021-07-19 12:52:42 +02:00

There a many double vertices in the mesh.
All is fine if you run Mesh > Cleanup > Merge by Distance prior.
Without this, pbvh_bmesh_face_remove can act on garbage PBVHNode returned by pbvh_bmesh_node_from_face

1  pbvh_bmesh_face_remove          pbvh_bmesh.c         688   0x382379f 
2  pbvh_bmesh_collapse_edge        pbvh_bmesh.c         1402  0x3826432 
3  pbvh_bmesh_collapse_short_edges pbvh_bmesh.c         1500  0x3826c2e 
4  BKE_pbvh_bmesh_update_topology  pbvh_bmesh.c         1992  0x3829d10 
5  sculpt_detail_flood_fill_exec   sculpt_detail.c      118   0x4cde606 
6  wm_operator_invoke              wm_event_system.c    1363  0x3d3031e 
7  wm_operator_call_internal       wm_event_system.c    1558  0x3d30969 
8  WM_operator_name_call_ptr       wm_event_system.c    1606  0x3d30b6f 
9  ui_apply_but_funcs_after        interface_handlers.c 1024  0x4de3284 
10 ui_handler_region_menu          interface_handlers.c 11354 0x4dff96f 
11 wm_handler_ui_call              wm_event_system.c    694   0x3d2e8a9 
12 wm_handlers_do_intern           wm_event_system.c    2843  0x3d34023 
13 wm_handlers_do                  wm_event_system.c    2959  0x3d34508 
14 wm_event_do_handlers            wm_event_system.c    3379  0x3d3576b 
15 WM_main                         wm.c                 647   0x3d292dd 
16 main                            creator.c            558   0x36d385a

@mano-wii, @PabloDobarro : should this be safeguarded against?

There a many double vertices in the mesh. All is fine if you run `Mesh` > `Cleanup` > `Merge by Distance` prior. Without this, `pbvh_bmesh_face_remove` can act on garbage `PBVHNode` returned by `pbvh_bmesh_node_from_face` ``` 1 pbvh_bmesh_face_remove pbvh_bmesh.c 688 0x382379f 2 pbvh_bmesh_collapse_edge pbvh_bmesh.c 1402 0x3826432 3 pbvh_bmesh_collapse_short_edges pbvh_bmesh.c 1500 0x3826c2e 4 BKE_pbvh_bmesh_update_topology pbvh_bmesh.c 1992 0x3829d10 5 sculpt_detail_flood_fill_exec sculpt_detail.c 118 0x4cde606 6 wm_operator_invoke wm_event_system.c 1363 0x3d3031e 7 wm_operator_call_internal wm_event_system.c 1558 0x3d30969 8 WM_operator_name_call_ptr wm_event_system.c 1606 0x3d30b6f 9 ui_apply_but_funcs_after interface_handlers.c 1024 0x4de3284 10 ui_handler_region_menu interface_handlers.c 11354 0x4dff96f 11 wm_handler_ui_call wm_event_system.c 694 0x3d2e8a9 12 wm_handlers_do_intern wm_event_system.c 2843 0x3d34023 13 wm_handlers_do wm_event_system.c 2959 0x3d34508 14 wm_event_do_handlers wm_event_system.c 3379 0x3d3576b 15 WM_main wm.c 647 0x3d292dd 16 main creator.c 558 0x36d385a ``` @mano-wii, @PabloDobarro : should this be safeguarded against?

Germano Cavalcante commented

2021-07-20 00:54:07 +02:00

Changed status from 'Confirmed' to: 'Needs User Info'

Germano Cavalcante commented

2021-07-20 00:54:07 +02:00

The mesh is corrupted. It has duplicate faces.

@al777, how did you get this corrupted mesh?

Unfortunately unless there are clear instructions on how to reproduce it from scratch we cannot debug this any further :\

Things that may cause mesh corruption: Importers, development versions of Blender, modeling tools.

The mesh is corrupted. It has duplicate faces. @al777, how did you get this corrupted mesh? Unfortunately unless there are clear instructions on how to reproduce it from scratch we cannot debug this any further :\ Things that may cause mesh corruption: Importers, development versions of Blender, modeling tools.

Philipp Oeser commented

2021-07-29 09:32:08 +02:00

Changed status from 'Needs User Info' to: 'Archived'

Philipp Oeser closed this issue

2021-07-29 09:32:08 +02:00

Philipp Oeser commented

2021-07-29 09:32:08 +02:00

No activity for more than a week. As per the tracker policy we assume the issue is gone and can be closed.

Thanks again for the report. If the problem persists please open a new report with the required information.

No activity for more than a week. As per the tracker policy we assume the issue is gone and can be closed. Thanks again for the report. If the problem persists please open a new report with the required information.

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Blender crashes when using detail flood fill (dyntopo) #89885