LineArt; Crahes when I reopen a file #86900

New Issue

Paolo Furani · 2021-03-24T19:16:09+01:00

Paolo Furani commented

2021-03-24 19:16:09 +01:00

System Information
An old HP laptop with
Operating system: Linux Ubuntu 18.04.5 LTS
Graphics card: Mesa DRI Intel(R) HD Graphics 5500 (BDW GT2)

Blender Version
Broken: Blender 2.93.0 Alpha, 3ea1779365, master, 2021-03-23 18:34
Worked: (newest version of Blender that worked as expected)

Short description of error

Exact steps for others to reproduce the error
I added two GP LineArt on the scene and it worked and then I saved the scene, with new grease pencil modifiers activated, but when I try to reopen in Blender the same scene crashes every times and I'm not able to see anythings after waiting the processing until crashes without any report. the file is attached.

yach.tar.xz

**System Information** An old HP laptop with Operating system: Linux Ubuntu 18.04.5 LTS Graphics card: Mesa DRI Intel(R) HD Graphics 5500 (BDW GT2) **Blender Version** Broken: Blender 2.93.0 Alpha, 3ea1779365b5, master, 2021-03-23 18:34 Worked: (newest version of Blender that worked as expected) **Short description of error** **Exact steps for others to reproduce the error** I added two GP LineArt on the scene and it worked and then I saved the scene, with new grease pencil modifiers activated, but when I try to reopen in Blender the same scene crashes every times and I'm not able to see anythings after waiting the processing until crashes without any report. the file is attached. [yach.tar.xz](https://archive.blender.org/developer/F9908120/yach.tar.xz)

Paolo Furani commented

2021-03-24 19:16:09 +01:00

Added subscriber: @pafurijaz-4

Antonio Vazquez commented

2021-03-24 20:06:50 +01:00

Added subscribers: @ChengduLittleA, @antoniov

Antonio Vazquez commented

2021-03-24 20:06:50 +01:00

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

Antonio Vazquez commented

2021-03-24 20:06:50 +01:00

I can confirm. The crasjh is in BKE_mesh_nurbs_displist_to_mdata()

Callstack:

BKE_mesh_from_nurbs_displist
mesh_new_from_curve_type_object
lineart_geometry_object_load
lineart_main_load_geometries
MOD_lineart_compute_feature_lines
generateStrokes(
BKE_gpencil_modifiers_calc
BKE_object_handle_data_update
BKE_object_eval_uber_data

@NicksBest Could you take a look?

I can confirm. The crasjh is in `BKE_mesh_nurbs_displist_to_mdata()` Callstack: ```BKE_mesh_nurbs_displist_to_mdata BKE_mesh_from_nurbs_displist mesh_new_from_curve_type_object lineart_geometry_object_load lineart_main_load_geometries MOD_lineart_compute_feature_lines generateStrokes( BKE_gpencil_modifiers_calc BKE_object_handle_data_update BKE_object_eval_uber_data ``` @NicksBest Could you take a look?

Antonio Vazquez changed title from ~~Crahes when I reopen a file with LineArt settings~~ to LineArt; Crahes when I reopen a file

2021-03-24 20:08:58 +01:00

YimingWu self-assigned this 2021-03-26 15:46:40 +01:00

YimingWu commented

2021-03-26 15:46:40 +01:00

This looks like a curve object data issue. I'll investigate.

Paolo Furani commented

2021-04-22 18:38:03 +02:00

Hi I have an other file with the same problem, this seem to me a problem related to adaptive modifiers but I really don't know why, this has only a line-art modifier on a simple mesh lines for the measures and also this don't works please before release the final version, resolve this bug, because this at the end save a corrupted file and that was impossible to reopen because goes in continuous bug crash, and the file is impossible to recovers with Blender 2.93. I successful opened on time but the thing is not replicable, and I don't understand why.

# Blender 2.93.0, Commit date: 2021-04-21 20:15, Hash 0f66dbea904f

# backtrace
./blender(BLI_system_backtrace+0x20) [0xa595c20]
./blender() [0xf6091a]
/lib/x86_64-linux-gnu/libc.so.6(+0x3f040) [0x7f6bb2aaf040]
./blender(BKE_mesh_nurbs_displist_to_mdata+0x836) [0x12d57e6]
./blender(BKE_mesh_from_nurbs_displist+0x261) [0x12d72c1]
./blender(BKE_mesh_new_from_object+0x27e) [0x12d76be]
./blender() [0x1eda3f5]
./blender(MOD_lineart_compute_feature_lines+0x53e) [0x1edb7be]
./blender() [0x1ecba3b]
./blender(BKE_gpencil_modifiers_calc+0x121) [0xf8fba1]
./blender(BKE_object_handle_data_update+0x394) [0xffaf74]
./blender(BKE_object_eval_uber_data+0x2f) [0xffb34f]
./blender() [0x86d54dc]
./blender() [0x86d5672]
./blender() [0x13060a5]
./blender() [0xa599823]
./blender() [0x13045d5]
./blender() [0x130488b]
./blender() [0x1305db7]
./blender() [0x12feb30]
./blender() [0x130028c]
./blender() [0x1300489]
/lib/x86_64-linux-gnu/libpthread.so.0(+0x76db) [0x7f6bb41f46db]
/lib/x86_64-linux-gnu/libc.so.6(clone+0x3f) [0x7f6bb2b9171f]

# Python backtrace

SubMarineCapsule_bug.blend

Hi I have an other file with the same problem, this seem to me a problem related to adaptive modifiers but I really don't know why, this has only a line-art modifier on a simple mesh lines for the measures and also this don't works please before release the final version, resolve this bug, because this at the end save a corrupted file and that was impossible to reopen because goes in continuous bug crash, and the file is impossible to recovers with Blender 2.93. I successful opened on time but the thing is not replicable, and I don't understand why. ``` # Blender 2.93.0, Commit date: 2021-04-21 20:15, Hash 0f66dbea904f # backtrace ./blender(BLI_system_backtrace+0x20) [0xa595c20] ./blender() [0xf6091a] /lib/x86_64-linux-gnu/libc.so.6(+0x3f040) [0x7f6bb2aaf040] ./blender(BKE_mesh_nurbs_displist_to_mdata+0x836) [0x12d57e6] ./blender(BKE_mesh_from_nurbs_displist+0x261) [0x12d72c1] ./blender(BKE_mesh_new_from_object+0x27e) [0x12d76be] ./blender() [0x1eda3f5] ./blender(MOD_lineart_compute_feature_lines+0x53e) [0x1edb7be] ./blender() [0x1ecba3b] ./blender(BKE_gpencil_modifiers_calc+0x121) [0xf8fba1] ./blender(BKE_object_handle_data_update+0x394) [0xffaf74] ./blender(BKE_object_eval_uber_data+0x2f) [0xffb34f] ./blender() [0x86d54dc] ./blender() [0x86d5672] ./blender() [0x13060a5] ./blender() [0xa599823] ./blender() [0x13045d5] ./blender() [0x130488b] ./blender() [0x1305db7] ./blender() [0x12feb30] ./blender() [0x130028c] ./blender() [0x1300489] /lib/x86_64-linux-gnu/libpthread.so.0(+0x76db) [0x7f6bb41f46db] /lib/x86_64-linux-gnu/libc.so.6(clone+0x3f) [0x7f6bb2b9171f] # Python backtrace ``` [SubMarineCapsule_bug.blend](https://archive.blender.org/developer/F10032739/SubMarineCapsule_bug.blend)

YimingWu commented

2021-04-23 09:28:18 +02:00

This looks like still a curve displist problem. I'll see what I can do here.

This looks like still a curve `displist` problem. I'll see what I can do here.

Paolo Furani commented

2021-05-22 18:57:23 +02:00

This file F9908120, with latest build, now freezes OS, any solutions before release on May 26?

This file [F9908120](https://archive.blender.org/developer/F9908120/yach.tar.xz), with latest build, now freezes OS, any solutions before release on May 26?

YimingWu commented

2021-05-23 08:11:17 +02:00

I'll test... current solution is just to append the file into anther file and convert everything to mesh before you add line art.

Paolo Furani commented

2021-05-23 19:25:46 +02:00

OK thanks, for now but I hope there is a solutions in some how in the future.

Philipp Oeser removed the

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LineArt; Crahes when I reopen a file #86900