Object with Lattice Modifer crashes when using Dyntopo #63872

New Issue

Rick Cuddy · 2019-04-25T06:30:53+02:00

Rick Cuddy commented

2019-04-25 06:30:53 +02:00

System Information
Operating system: Windows-10-10.0.17134 64 Bits
Graphics card: GeForce GTX 1060/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 425.31

Blender Version
Broken: version: 2.80 (sub 59), branch: blender2.7, commit date: 2019-04-24 22:25, hash: d966c2f0c2
Broken: version: 2.80 (sub 57), branch: blender2.7, commit date: 2019-04-17 19:26, hash: b46245470f
Working: version 2.79b

Short description of error
Applying Dyntopo to a mesh with a lattice modifier results in a crash when disabling or leaving dyntopo mode.

Was discovered in an object with multiple modifiers (in order: mirror, array, lattice, subdivision surface and I narrowed it down to being the lattice.)
Worked as expected with only those other modifiers or if you turn off the lattice modifier "Display in Viewport" property.

Exact steps for others to reproduce the error

Create a cube
Create a lattice object
Add lattice modifier to cube
Assign lattice object to cube
Deform cube via lattice
Enter sculpt mode for cube
Enable dyntopo
Accept the warning about vertex data
Make a stroke on the cube surface
disable dyntopo, or tab out of sculpt mode

see blender crash

See attached minimal reproduction
See attached blender debug logs

sculpt-bug.blend

blender_system_info.txt

blender_debug_output.txt

**System Information** Operating system: Windows-10-10.0.17134 64 Bits Graphics card: GeForce GTX 1060/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 425.31 **Blender Version** Broken: version: 2.80 (sub 59), branch: blender2.7, commit date: 2019-04-24 22:25, hash: `d966c2f0c2` Broken: version: 2.80 (sub 57), branch: blender2.7, commit date: 2019-04-17 19:26, hash: `b46245470f` Working: version 2.79b **Short description of error** Applying Dyntopo to a mesh with a lattice modifier results in a crash when disabling or leaving dyntopo mode. Was discovered in an object with multiple modifiers (in order: mirror, array, lattice, subdivision surface and I narrowed it down to being the lattice.) Worked as expected with only those other modifiers or if you turn off the lattice modifier "Display in Viewport" property. **Exact steps for others to reproduce the error** - Create a cube - Create a lattice object - Add lattice modifier to cube - Assign lattice object to cube - Deform cube via lattice - Enter sculpt mode for cube - Enable dyntopo - Accept the warning about vertex data - Make a stroke on the cube surface - disable dyntopo, or tab out of sculpt mode # see blender crash See attached minimal reproduction See attached blender debug logs [sculpt-bug.blend](https://archive.blender.org/developer/F6974363/sculpt-bug.blend) [blender_system_info.txt](https://archive.blender.org/developer/F6974365/blender_system_info.txt) [blender_debug_output.txt](https://archive.blender.org/developer/F6974364/blender_debug_output.txt)

Rick Cuddy commented

2019-04-25 06:30:53 +02:00

Added subscriber: @rcuddy

Jacques Lucke commented

2019-04-25 14:34:41 +02:00

Added subscriber: @JacquesLucke

Jacques Lucke commented

2019-04-25 14:34:41 +02:00

BLI_assert(!"PBVH: Given deforming vcos number does not natch PBVH vertex number!");

__GI_raise(int sig) (/build/glibc-OTsEL5/glibc-2.27/sysdeps/unix/sysv/linux/raise.c:51)
__GI_abort() (/build/glibc-OTsEL5/glibc-2.27/stdlib/abort.c:79)
BKE_pbvh_apply_vertCos(PBVH * pbvh, float (*)[3] vertCos, const int totvert) (/home/jacques/blender-git/blender/source/blender/blenkernel/intern/pbvh.c:2333)
build_pbvh_from_regular_mesh(Object * ob, Mesh * me_eval_deform) (/home/jacques/blender-git/blender/source/blender/blenkernel/intern/paint.c:1399)
BKE_sculpt_object_pbvh_ensure(Depsgraph * depsgraph, Object * ob) (/home/jacques/blender-git/blender/source/blender/blenkernel/intern/paint.c:1456)
BKE_sculpt_update_mesh_elements(Depsgraph * depsgraph, Scene * scene, Sculpt * sd, Object * ob, _Bool need_pmap, _Bool need_mask) (/home/jacques/blender-git/blender/source/blender/blenkernel/intern/paint.c:1176)
sculpt_update_after_dynamic_topology_toggle(Depsgraph * depsgraph, Scene * scene, Object * ob) (/home/jacques/blender-git/blender/source/blender/editors/sculpt_paint/sculpt.c:5618)
sculpt_dynamic_topology_disable_ex(Depsgraph * depsgraph, Scene * scene, Object * ob, SculptUndoNode * unode) (/home/jacques/blender-git/blender/source/blender/editors/sculpt_paint/sculpt.c:5739)
sculpt_dynamic_topology_disable_with_undo(Depsgraph * depsgraph, Scene * scene, Object * ob) (/home/jacques/blender-git/blender/source/blender/editors/sculpt_paint/sculpt.c:5758)
ED_object_sculptmode_exit_ex(Depsgraph * depsgraph, Scene * scene, Object * ob) (/home/jacques/blender-git/blender/source/blender/editors/sculpt_paint/sculpt.c:6176)
sculpt_mode_toggle_exec(bContext * C, wmOperator * op) (/home/jacques/blender-git/blender/source/blender/editors/sculpt_paint/sculpt.c:6224)
wm_operator_invoke(bContext * C, wmOperatorType * ot, wmEvent * event, PointerRNA * properties, ReportList * reports, const _Bool poll_only, _Bool use_last_properties) (/home/jacques/blender-git/blender/source/blender/windowmanager/intern/wm_event_system.c:1421)
wm_operator_call_internal(bContext * C, wmOperatorType * ot, PointerRNA * properties, ReportList * reports, const short context, const _Bool poll_only, wmEvent * event) (/home/jacques/blender-git/blender/source/blender/windowmanager/intern/wm_event_system.c:1623)
WM_operator_name_call_ptr(bContext * C, wmOperatorType * ot, short context, PointerRNA * properties) (/home/jacques/blender-git/blender/source/blender/windowmanager/intern/wm_event_system.c:1671)
WM_operator_name_call(bContext * C, const char * opstring, short context, PointerRNA * properties) (/home/jacques/blender-git/blender/source/blender/windowmanager/intern/wm_event_system.c:1677)
ED_object_mode_compat_set(bContext * C, Object * ob, eObjectMode mode, ReportList * reports) (/home/jacques/blender-git/blender/source/blender/editors/object/object_modes.c:152)
object_mode_set_exec(bContext * C, wmOperator * op) (/home/jacques/blender-git/blender/source/blender/editors/object/object_edit.c:1376)
wm_operator_invoke(bContext * C, wmOperatorType * ot, wmEvent * event, PointerRNA * properties, ReportList * reports, const _Bool poll_only, _Bool use_last_properties) (/home/jacques/blender-git/blender/source/blender/windowmanager/intern/wm_event_system.c:1421)
wm_handler_operator_call(bContext * C, ListBase * handlers, wmEventHandler * handler_base, wmEvent * event, PointerRNA * properties) (/home/jacques/blender-git/blender/source/blender/windowmanager/intern/wm_event_system.c:2234)
wm_handlers_do_intern(bContext * C, wmEvent * event, ListBase * handlers) (/home/jacques/blender-git/blender/source/blender/windowmanager/intern/wm_event_system.c:2544)

`BLI_assert(!"PBVH: Given deforming vcos number does not natch PBVH vertex number!");` ``` __GI_raise(int sig) (/build/glibc-OTsEL5/glibc-2.27/sysdeps/unix/sysv/linux/raise.c:51) __GI_abort() (/build/glibc-OTsEL5/glibc-2.27/stdlib/abort.c:79) BKE_pbvh_apply_vertCos(PBVH * pbvh, float (*)[3] vertCos, const int totvert) (/home/jacques/blender-git/blender/source/blender/blenkernel/intern/pbvh.c:2333) build_pbvh_from_regular_mesh(Object * ob, Mesh * me_eval_deform) (/home/jacques/blender-git/blender/source/blender/blenkernel/intern/paint.c:1399) BKE_sculpt_object_pbvh_ensure(Depsgraph * depsgraph, Object * ob) (/home/jacques/blender-git/blender/source/blender/blenkernel/intern/paint.c:1456) BKE_sculpt_update_mesh_elements(Depsgraph * depsgraph, Scene * scene, Sculpt * sd, Object * ob, _Bool need_pmap, _Bool need_mask) (/home/jacques/blender-git/blender/source/blender/blenkernel/intern/paint.c:1176) sculpt_update_after_dynamic_topology_toggle(Depsgraph * depsgraph, Scene * scene, Object * ob) (/home/jacques/blender-git/blender/source/blender/editors/sculpt_paint/sculpt.c:5618) sculpt_dynamic_topology_disable_ex(Depsgraph * depsgraph, Scene * scene, Object * ob, SculptUndoNode * unode) (/home/jacques/blender-git/blender/source/blender/editors/sculpt_paint/sculpt.c:5739) sculpt_dynamic_topology_disable_with_undo(Depsgraph * depsgraph, Scene * scene, Object * ob) (/home/jacques/blender-git/blender/source/blender/editors/sculpt_paint/sculpt.c:5758) ED_object_sculptmode_exit_ex(Depsgraph * depsgraph, Scene * scene, Object * ob) (/home/jacques/blender-git/blender/source/blender/editors/sculpt_paint/sculpt.c:6176) sculpt_mode_toggle_exec(bContext * C, wmOperator * op) (/home/jacques/blender-git/blender/source/blender/editors/sculpt_paint/sculpt.c:6224) wm_operator_invoke(bContext * C, wmOperatorType * ot, wmEvent * event, PointerRNA * properties, ReportList * reports, const _Bool poll_only, _Bool use_last_properties) (/home/jacques/blender-git/blender/source/blender/windowmanager/intern/wm_event_system.c:1421) wm_operator_call_internal(bContext * C, wmOperatorType * ot, PointerRNA * properties, ReportList * reports, const short context, const _Bool poll_only, wmEvent * event) (/home/jacques/blender-git/blender/source/blender/windowmanager/intern/wm_event_system.c:1623) WM_operator_name_call_ptr(bContext * C, wmOperatorType * ot, short context, PointerRNA * properties) (/home/jacques/blender-git/blender/source/blender/windowmanager/intern/wm_event_system.c:1671) WM_operator_name_call(bContext * C, const char * opstring, short context, PointerRNA * properties) (/home/jacques/blender-git/blender/source/blender/windowmanager/intern/wm_event_system.c:1677) ED_object_mode_compat_set(bContext * C, Object * ob, eObjectMode mode, ReportList * reports) (/home/jacques/blender-git/blender/source/blender/editors/object/object_modes.c:152) object_mode_set_exec(bContext * C, wmOperator * op) (/home/jacques/blender-git/blender/source/blender/editors/object/object_edit.c:1376) wm_operator_invoke(bContext * C, wmOperatorType * ot, wmEvent * event, PointerRNA * properties, ReportList * reports, const _Bool poll_only, _Bool use_last_properties) (/home/jacques/blender-git/blender/source/blender/windowmanager/intern/wm_event_system.c:1421) wm_handler_operator_call(bContext * C, ListBase * handlers, wmEventHandler * handler_base, wmEvent * event, PointerRNA * properties) (/home/jacques/blender-git/blender/source/blender/windowmanager/intern/wm_event_system.c:2234) wm_handlers_do_intern(bContext * C, wmEvent * event, ListBase * handlers) (/home/jacques/blender-git/blender/source/blender/windowmanager/intern/wm_event_system.c:2544) ```

Brecht Van Lommel commented

2019-05-29 14:33:00 +02:00

Closed as duplicate of #65200

Brecht Van Lommel closed this issue

2019-05-29 14:33:00 +02:00

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Object with Lattice Modifer crashes when using Dyntopo #63872

see blender crash