Regression: Crash on toggling display mode of wave modifier in edit mode #100191
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Reference: blender/blender#100191
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System Information
Operating system: Windows-10-10.0.22000-SP0 64 Bits
Graphics card: NVIDIA GeForce RTX 3060/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 516.59
Blender Version
Broken: version: 3.4.0, 2.93
Worked: 2.83
Caused by
deaff945d0
Short description of error
In edit mode, crash occurs if
along normals
is enabled and display mode of wave modifier is toggledExact steps for others to reproduce the error
Video from #100191#1399729: F13335857
Added subscriber: @Guai_Wo_Ge_EMM
Added subscriber: @OmarEmaraDev
Changed status from 'Needs Triage' to: 'Needs User Info'
What does "Will flash back" mean here? Can you make a video screen cast?
Exit the software directly
I guess you mean it crashes?
Please open Blender's installation directory and double click on the
blender_debug_gpu.cmd
. This will start Blender in debug mode and create log files. Try to reproduce the error again. Once it crashes or you close Blender manually the Windows Explorer should open and show you up to two files, a debug log and the system information. Add them to your bug report by clicking on the upload button as shown in the screenshot below or via drag and drop. Please also upload the crash log located inC:\Users\[your username]\AppData\Local\Temp\[project name].crash.txt
(or simply type%TEMP%
into the path bar of the Windows Explorer).If is blender_debug_gpu.cmd will not cause this problem
wave.mp4
How about with a factory reset, does the issue happen with it? File > Defaults > Load Factory Settings.
Even the load factory settings will have problems
But Blender doesn't write any crash logs? Located in
C:\Users\[your username]\AppData\Local\Temp\[project name].crash.txt
.if use blender_debug_log.cmd is crashes
use blender_debug_gpu.cmd not crashes
the is blender_debug_log.cmd log
blender_system_info.txt
blender_debug_output.txt
20220804-162351.mp4
Can you attach
D:\Users\EM1\AppData\Local\Temp\blender.crash.txt
?This comment was removed by @Guai_Wo_Ge_EMM
blender.crash.txt
Added subscriber: @PratikPB2123
I can confirm.
however crash did not happen in debug build. Instead I saw spike in memory usage, memory leak?
Wave Modifierl Switch show_viewport Flash backto Crash on toggling display mode of wave modifier in edit modeChanged status from 'Needs User Info' to: 'Confirmed'
Added subscriber: @lichtwerk
This broke between good
5db2d9c82b
and bad1d4bae8566
, will check.Caused by
deaff945d0
Added subscribers: @HooglyBoogly, @ideasman42
There seems to be a problem with passing
vertexCos
intoMOD_deform_mesh_eval_get
in this case (instead of NULL like all other modifiers do).This sets
me->runtime.edit_data->vertexCos
which then causes issues ensuring normals (BKE_mesh_vertex_normals_ensure)?mvert_len
andmpoly_len
coming intoBKE_mesh_calc_normals_poly_and_vertex
is garbled (much too high).This simple change seems to prevent the crash and also still seems to behave as expected (but I have limited understanding of the code here, so cant really explain why):
P3134: T100191_snippet
The wave modifier is also the only modifier that actually uses
use_normals
forMOD_deform_mesh_eval_get
(might give another hint if my other findings are wrong...)@ideasman42 or @HooglyBoogly might know more...
Crash on toggling display mode of wave modifier in edit modeto Regression: Crash on toggling display mode of wave modifier in edit modeThis issue was referenced by
52a5c80313
This issue was referenced by
4dc9a8a21e
Changed status from 'Confirmed' to: 'Resolved'