Circle Select on a Curve in Edit Mode = _BLI_assert_abort for Pydebug of Blender 3.2 #99073

New Issue

Lukas Sneyd · 2022-06-22T00:48:53+02:00

Lukas Sneyd commented

2022-06-22 00:48:53 +02:00

System Information
Operating system: Windows 11
Graphics card: Nvidia 3070ti

Blender Version
Broken: 3.2 pydebug
Worked: unknown

Short description of error
If you use circle select to click in viewport in edit mode of a curve object in Blender 3.2 Pydebug in VS 2019 (python/native debugging) it will crash and give you _BLI_assert_abort.

ucrtbased.dll!issue_debug_notification(const wchar_t * const message) Line 28
	at minkernel\crts\ucrt\src\appcrt\internal\report_runtime_error.cpp(28)
ucrtbased.dll!__acrt_report_runtime_error(const wchar_t * message) Line 154
	at minkernel\crts\ucrt\src\appcrt\internal\report_runtime_error.cpp(154)
ucrtbased.dll!abort() Line 61
	at minkernel\crts\ucrt\src\appcrt\startup\abort.cpp(61)
blender.exe!_BLI_assert_abort() Line 47
	at E:\blender-git\blender\source\blender\blenlib\intern\BLI_assert.c(47)
blender.exe!BKE_editmesh_from_object(Object * ob) Line 59
	at E:\blender-git\blender\source\blender\blenkernel\intern\editmesh.c(59)
blender.exe!em_setup_viewcontext(bContext * C, ViewContext * vc) Line 4359
	at E:\blender-git\blender\source\blender\editors\mesh\editmesh_select.c(4359)
blender.exe!view3d_circle_select_recalc(void * user_data) Line 4614
	at E:\blender-git\blender\source\blender\editors\space_view3d\view3d_select.c(4614)
blender.exe!view3d_circle_select_modal(bContext * C, wmOperator * op, const wmEvent * event) Line 4639
	at E:\blender-git\blender\source\blender\editors\space_view3d\view3d_select.c(4639)
blender.exe!wm_handler_operator_call(bContext * C, ListBase * handlers, wmEventHandler * handler_base, wmEvent * event, PointerRNA * properties, const unsigned char * kmi_idname) Line 2327
	at E:\blender-git\blender\source\blender\windowmanager\intern\wm_event_system.c(2327)
blender.exe!wm_handlers_do_intern(bContext * C, wmWindow * win, wmEvent * event, ListBase * handlers) Line 3227
	at E:\blender-git\blender\source\blender\windowmanager\intern\wm_event_system.c(3227)
blender.exe!wm_handlers_do(bContext * C, wmEvent * event, ListBase * handlers) Line 3279
	at E:\blender-git\blender\source\blender\windowmanager\intern\wm_event_system.c(3279)
blender.exe!wm_event_do_handlers(bContext * C) Line 3869
	at E:\blender-git\blender\source\blender\windowmanager\intern\wm_event_system.c(3869)
blender.exe!WM_main(bContext * C) Line 626
	at E:\blender-git\blender\source\blender\windowmanager\intern\wm.c(626)
blender.exe!main(int argc, const unsigned char * * UNUSED_argv_c) Line 551
	at E:\blender-git\blender\source\creator\creator.c(551)
[External Code]

Exact steps for others to reproduce the error
Default startup, object mode, add bezier curve, go into edit mode, switch to circle select, click viewport. Also happens with circle, nurbs curve, nurbs circle, and path.

**System Information** Operating system: Windows 11 Graphics card: Nvidia 3070ti **Blender Version** Broken: 3.2 pydebug Worked: unknown **Short description of error** If you use circle select to click in viewport in edit mode of a curve object in Blender 3.2 Pydebug in VS 2019 (python/native debugging) it will crash and give you _BLI_assert_abort. ``` ucrtbased.dll!issue_debug_notification(const wchar_t * const message) Line 28 at minkernel\crts\ucrt\src\appcrt\internal\report_runtime_error.cpp(28) ucrtbased.dll!__acrt_report_runtime_error(const wchar_t * message) Line 154 at minkernel\crts\ucrt\src\appcrt\internal\report_runtime_error.cpp(154) ucrtbased.dll!abort() Line 61 at minkernel\crts\ucrt\src\appcrt\startup\abort.cpp(61) blender.exe!_BLI_assert_abort() Line 47 at E:\blender-git\blender\source\blender\blenlib\intern\BLI_assert.c(47) blender.exe!BKE_editmesh_from_object(Object * ob) Line 59 at E:\blender-git\blender\source\blender\blenkernel\intern\editmesh.c(59) blender.exe!em_setup_viewcontext(bContext * C, ViewContext * vc) Line 4359 at E:\blender-git\blender\source\blender\editors\mesh\editmesh_select.c(4359) blender.exe!view3d_circle_select_recalc(void * user_data) Line 4614 at E:\blender-git\blender\source\blender\editors\space_view3d\view3d_select.c(4614) blender.exe!view3d_circle_select_modal(bContext * C, wmOperator * op, const wmEvent * event) Line 4639 at E:\blender-git\blender\source\blender\editors\space_view3d\view3d_select.c(4639) blender.exe!wm_handler_operator_call(bContext * C, ListBase * handlers, wmEventHandler * handler_base, wmEvent * event, PointerRNA * properties, const unsigned char * kmi_idname) Line 2327 at E:\blender-git\blender\source\blender\windowmanager\intern\wm_event_system.c(2327) blender.exe!wm_handlers_do_intern(bContext * C, wmWindow * win, wmEvent * event, ListBase * handlers) Line 3227 at E:\blender-git\blender\source\blender\windowmanager\intern\wm_event_system.c(3227) blender.exe!wm_handlers_do(bContext * C, wmEvent * event, ListBase * handlers) Line 3279 at E:\blender-git\blender\source\blender\windowmanager\intern\wm_event_system.c(3279) blender.exe!wm_event_do_handlers(bContext * C) Line 3869 at E:\blender-git\blender\source\blender\windowmanager\intern\wm_event_system.c(3869) blender.exe!WM_main(bContext * C) Line 626 at E:\blender-git\blender\source\blender\windowmanager\intern\wm.c(626) blender.exe!main(int argc, const unsigned char * * UNUSED_argv_c) Line 551 at E:\blender-git\blender\source\creator\creator.c(551) [External Code] ``` **Exact steps for others to reproduce the error** Default startup, object mode, add bezier curve, go into edit mode, switch to circle select, click viewport. Also happens with circle, nurbs curve, nurbs circle, and path.

Lukas Sneyd commented

2022-06-22 00:48:54 +02:00

Added subscriber: @lcas

Robert Guetzkow commented

2022-06-22 02:07:16 +02:00

Added subscriber: @rjg

Robert Guetzkow commented

2022-06-22 02:07:16 +02:00

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

Robert Guetzkow commented

2022-06-22 02:07:16 +02:00

The assert is triggered because the Bezier curve is not a mesh, yet view3d_circle_select_recalc() calls em_setup_viewcontext(), which calls BKE_editmesh_from_object when in edit mode. The latter contains the BLI_assert(ob->type == OB_MESH);.

It appears this issue was introduced in 0375720e28

The assert is triggered because the Bezier curve is not a mesh, yet `view3d_circle_select_recalc()` calls `em_setup_viewcontext()`, which calls `BKE_editmesh_from_object` when in edit mode. The latter contains the `BLI_assert(ob->type == OB_MESH);`. It appears this issue was introduced in 0375720e28

Lukas Sneyd commented

2022-06-22 09:43:11 +02:00

Would it be ok to do this? If I add a more specific check for OB_MESH in em_setup_viewcontext()

original

void em_setup_viewcontext(bContext *C, ViewContext *vc)
{
  Depsgraph *depsgraph = CTX_data_ensure_evaluated_depsgraph(C);
  ED_view3d_viewcontext_init(C, vc, depsgraph);

  if (vc->obedit) {
    vc->em = BKE_editmesh_from_object(vc->obedit);
  }
}

new

void em_setup_viewcontext(bContext *C, ViewContext *vc)
{
  Depsgraph *depsgraph = CTX_data_ensure_evaluated_depsgraph(C);
  ED_view3d_viewcontext_init(C, vc, depsgraph);

  if (vc->obedit->type == OB_MESH) {
    vc->em = BKE_editmesh_from_object(vc->obedit);
  }
}

Would it be ok to do this? If I add a more specific check for `OB_MESH` in `em_setup_viewcontext()` original ``` void em_setup_viewcontext(bContext *C, ViewContext *vc) { Depsgraph *depsgraph = CTX_data_ensure_evaluated_depsgraph(C); ED_view3d_viewcontext_init(C, vc, depsgraph); if (vc->obedit) { vc->em = BKE_editmesh_from_object(vc->obedit); } } ``` new ``` void em_setup_viewcontext(bContext *C, ViewContext *vc) { Depsgraph *depsgraph = CTX_data_ensure_evaluated_depsgraph(C); ED_view3d_viewcontext_init(C, vc, depsgraph); if (vc->obedit->type == OB_MESH) { vc->em = BKE_editmesh_from_object(vc->obedit); } } ```

Philipp Oeser removed the

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Circle Select on a Curve in Edit Mode = _BLI_assert_abort for Pydebug of Blender 3.2 #99073