Crash When Removing Multi-Res Modifier from Sculpt Object #58310

New Issue

Ever Hobbes · 2018-11-30T15:04:11+01:00

Ever Hobbes commented

2018-11-30 15:04:11 +01:00

System Information
Operating system: Win 10 64
Graphics card: GTX 1070

Blender Version
Broken: 2.80 - 2018-11-30 00.46

Short description of error
Blender crashes out when removing/deleting the Multi-Res modifier from an object while in sculpt mode.

Exact steps for others to reproduce the error

Open default file.
Go to Sculpting Workspace.
Add Multi-Res modifier to default cube.
Subdivide at least once using the modifier
Sculpt on the object at least once with any sculpting tool.
Delete the Multi-Res modifier (hit X on the modifier)

Blender crashes.

**System Information** Operating system: Win 10 64 Graphics card: GTX 1070 **Blender Version** Broken: 2.80 - 2018-11-30 00.46 **Short description of error** Blender crashes out when removing/deleting the Multi-Res modifier from an object while in sculpt mode. **Exact steps for others to reproduce the error** - Open default file. - Go to Sculpting Workspace. - Add Multi-Res modifier to default cube. - Subdivide at least once using the modifier - Sculpt on the object at least once with any sculpting tool. - Delete the Multi-Res modifier (hit X on the modifier) # Blender crashes.

Ever Hobbes commented

2018-11-30 15:04:11 +01:00

Added subscriber: @turquoiserabbit

Philipp Oeser commented

2018-11-30 15:22:07 +01:00

Added subscribers: @Sergey, @lichtwerk

Sergey Sharybin was assigned by Philipp Oeser

2018-11-30 15:22:07 +01:00

Philipp Oeser commented

2018-11-30 15:22:07 +01:00

Can confirm.

MDisps *mdisps = CustomData_get_layer(&coarse_mesh->ldata, CD_MDISPS);
mdisps is NULL

1  multiresModifier_reshapeFromCCG 			multires_reshape.c 1176 0x2b0b86f      
2  object_update_from_subsurf_ccg			object.c           391  0x2b22bde      
3  BKE_object_free_derived_caches			object.c           459  0x2b22d7d      
4  mesh_build_data					DerivedMesh.c      2007 0x29a526e      
5  makeDerivedMesh					DerivedMesh.c      2120 0x29a55e1      
6  BKE_object_handle_data_update			object_update.c    205  0x2b3621f      
7  BKE_object_eval_uber_data				object_update.c    348  0x2b36922

@Sergey: mind checking on this one?

Can confirm. MDisps *mdisps = CustomData_get_layer(&coarse_mesh->ldata, CD_MDISPS); mdisps is NULL ``` 1 multiresModifier_reshapeFromCCG multires_reshape.c 1176 0x2b0b86f 2 object_update_from_subsurf_ccg object.c 391 0x2b22bde 3 BKE_object_free_derived_caches object.c 459 0x2b22d7d 4 mesh_build_data DerivedMesh.c 2007 0x29a526e 5 makeDerivedMesh DerivedMesh.c 2120 0x29a55e1 6 BKE_object_handle_data_update object_update.c 205 0x2b3621f 7 BKE_object_eval_uber_data object_update.c 348 0x2b36922 ``` @Sergey: mind checking on this one?

Sergey commented

2018-11-30 15:24:21 +01:00

Added subscriber: @SergeyIvanov