Crash switching to vertex paint (from editmode, mesh with modifier, after adding/removing geometry in editmode) #72028

New Issue

Jan Bláha · 2019-11-28T22:15:52+01:00

Jan Bláha commented

2019-11-28 22:15:52 +01:00

System Information
Operating system: Windows-10-10.0.18362 64 Bits
Graphics card: GeForce GTX 1060 3GB/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 431.60

Operating system: Linux-5.4.17-200.fc31.x86_64-x86_64-with-fedora-31-Thirty_One 64 Bits
Graphics card: GeForce GTX 970M/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 440.44

Blender Version
Broken: version: 2.81 (sub 16), branch: master, commit date: 2019-11-20 14:27, hash: 26bd5ebd42
Broken: version: 2.83 (sub 6), branch: master (modified), commit date: 2020-03-03 09:01, hash: b454a12233
Worked: 2.79b -

Short description of error
Crash switching to vertex paint (from editmode, mesh with modifier, after adding/removing geometry in editmode)

Exact steps for others to reproduce the error

#72028.blend

have a mesh object with any modifier (just open above file)
enter editmode (already the case in above file)
add geometry (just duplicate selected vertices)
switch to vertex paint mode
crash
notes:
object_eval->runtime.mesh_deform_eval does not seem to be updated with new/generated geometry somehow while in editmode? [checked this in BKE_sculpt_object_pbvh_ensure when entering vertexpaint from editmode]
everything is fine if you exit and renter editmode prior to switching to vertex paint

**System Information** Operating system: Windows-10-10.0.18362 64 Bits Graphics card: GeForce GTX 1060 3GB/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 431.60 Operating system: Linux-5.4.17-200.fc31.x86_64-x86_64-with-fedora-31-Thirty_One 64 Bits Graphics card: GeForce GTX 970M/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 440.44 **Blender Version** Broken: version: 2.81 (sub 16), branch: master, commit date: 2019-11-20 14:27, hash: `26bd5ebd42` Broken: version: 2.83 (sub 6), branch: master (modified), commit date: 2020-03-03 09:01, hash: `b454a12233` Worked: 2.79b - **Short description of error** Crash switching to vertex paint (from editmode, mesh with modifier, after adding/removing geometry in editmode) **Exact steps for others to reproduce the error** [#72028.blend](https://archive.blender.org/developer/F8385028/T72028.blend) - have a mesh object with any modifier (just open above file) - enter editmode (already the case in above file) - add geometry (just duplicate selected vertices) - switch to vertex paint mode - crash notes: - `object_eval->runtime.mesh_deform_eval` does not seem to be updated with new/generated geometry somehow while in editmode? [checked this in `BKE_sculpt_object_pbvh_ensure` when entering vertexpaint from editmode] - everything is fine if you exit and renter editmode prior to switching to vertex paint

Jan Bláha commented

2019-11-28 22:15:52 +01:00

Added subscriber: @swift502

Germano Cavalcante commented

2019-11-29 14:13:55 +01:00

Added subscribers: @mont29, @mano-wii

Germano Cavalcante commented

2019-11-29 14:13:55 +01:00

I can confirm.
By the way, before the crash this assert is raised:

BLI_assert failed: src\blender\blenkernel\intern\pbvh.c:2565, BKE_pbvh_vert_coords_apply(), at '!"PBVH: Given deforming vcos number does not natch PBVH vertex number!"'

(assert added in 934b9e80. @mont29, do you know what may be happening?)

I can confirm. By the way, before the crash this assert is raised: ``` BLI_assert failed: src\blender\blenkernel\intern\pbvh.c:2565, BKE_pbvh_vert_coords_apply(), at '!"PBVH: Given deforming vcos number does not natch PBVH vertex number!"' ``` (assert added in 934b9e80. @mont29, do you know what may be happening?)

Philipp Oeser commented

2020-03-03 15:44:41 +01:00

Added subscriber: @lichtwerk

Philipp Oeser commented

2020-03-03 15:44:41 +01:00

Couple of notes:

no need to add a monkey, any generation of a face will do here (e.g. just extruding that single edge)
in fact, this doesnt even have to be a mesh with edges only to start of, culprit is just adding geometry in editmode (so duplicating an existing face will also do, see file below)
no need for a particle system, seems like any modifier will do here (e.g. in that file, remove the particle system, add a Simple Deform modifier, same thing happens
everything is fine if you exit and renter editmode
object_eval->runtime.mesh_deform_eval does not seem to be updated with new/generated geometry somehow while in editmode? [checked this in BKE_sculpt_object_pbvh_ensure when entering vertexpaint from editmode]

so to recap:

have a mesh object with any modifier
enter editmode
add geometry
switch to vertex paint mode
crash

#72028.blend

will update report accodingly

Couple of notes: - no need to add a monkey, **any** generation of a face will do here (e.g. just extruding that single edge) - in fact, this doesnt even have to be a mesh with edges only to start of, culprit is just adding geometry in editmode (so duplicating an existing face will also do, see file below) - no need for a particle system, seems like **any** modifier will do here (e.g. in that file, remove the particle system, add a `Simple Deform` modifier, same thing happens - everything is fine if you exit and renter editmode - `object_eval->runtime.mesh_deform_eval` does not seem to be updated with new/generated geometry somehow while in editmode? [checked this in `BKE_sculpt_object_pbvh_ensure` when entering vertexpaint from editmode] so to recap: - have a mesh object with any modifier - enter editmode - add geometry - switch to vertex paint mode - crash [#72028.blend](https://archive.blender.org/developer/F8385028/T72028.blend) will update report accodingly

Philipp Oeser changed title from ~~Crash related to vertex paint and particle physics~~ to Crash switching to vertex paint (from editmode, mesh with modifier, after adding/removing geometry in editmode)

2020-03-03 15:52:25 +01:00

Philipp Oeser self-assigned this 2020-03-03 16:10:26 +01:00

Philipp Oeser commented

2020-03-03 16:10:26 +01:00

will check on it

blender-admin commented

2020-03-03 17:22:52 +01:00

This issue was referenced by c7e28f25d5

This issue was referenced by c7e28f25d58ab1277712e6d8ed6293f8d39e1758

blender-admin commented

2020-03-03 17:22:52 +01:00

This issue was referenced by 31aefdeec5

This issue was referenced by 31aefdeec5a6e098acabee80517aa6ca03933808

Philipp Oeser commented

2020-03-03 19:47:17 +01:00

Changed status from 'Confirmed' to: 'Resolved'

Philipp Oeser closed this issue

2020-03-03 19:47:17 +01:00

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Reference: blender/blender#72028

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Crash switching to vertex paint (from editmode, mesh with modifier, after adding/removing geometry in editmode) #72028