Blender 2.8 crash with modifier stack + separate by selection #56258

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Jesse Yurkovich · 2018-08-07T03:28:32+02:00

Jesse Yurkovich commented

2018-08-07 03:28:32 +02:00

System Information
Win10 nVidia Quadro

Blender Version
Broken: 2.8 faf43ff9ad
Worked: (optional)

Short description of error
When there's multiple modifiers in the stack and you attempt to "separate by selection" the last piece of a mesh, you'll get a crash

Exact steps for others to reproduce the error

Load attached blend (a Plane, with sub-d + solidify mods, knife'd into 5 pieces)
- Also repros with solidify + bevel (all at default settings)
Select a piece and "Separate by selection"
Do this for all 5 pieces (crashes once you try the 5th piece)

BLI_assert(origindex_edge != NULL);

blender.exe!applyModifier(ModifierData * md, const ModifierEvalContext * ctx, Mesh * mesh) Line 777	C
blender.exe!modifier_applyModifier_DM_deprecated(ModifierData * md, const ModifierEvalContext * ctx, DerivedMesh * dm) Line 1171	C
blender.exe!modwrap_applyModifier(ModifierData * md, const ModifierEvalContext * ctx, DerivedMesh * dm) Line 840	C
blender.exe!editbmesh_calc_modifiers(Depsgraph * depsgraph, Scene * scene, Object * ob, BMEditMesh * em, unsigned __int64 dataMask, DerivedMesh * * r_cage, DerivedMesh * * r_final) Line 2717	C
blender.exe!editbmesh_build_data(Depsgraph * depsgraph, Scene * scene, Object * obedit, BMEditMesh * em, unsigned __int64 dataMask) Line 3001	C
blender.exe!makeDerivedMesh(Depsgraph * depsgraph, Scene * scene, Object * ob, BMEditMesh * em, unsigned __int64 dataMask, const bool build_shapekey_layers) Line 3058	C
blender.exe!BKE_object_handle_data_update(Depsgraph * depsgraph, Scene * scene, Object * ob) Line 203	C
blender.exe!BKE_object_eval_uber_data(Depsgraph * depsgraph, Scene * scene, Object * ob) Line 313	C
blender.exe!std::_Invoker_functor::_Call<void (__cdecl*&)(Depsgraph *,Scene *,Object *),Depsgraph *,Scene * &,Object * &>(void(*)(Depsgraph *, Scene *, Object *) & _Obj, Depsgraph * && <_Args_0>, Scene * & <_Args_1>, Object * & <_Args_2>)	C++

crash.blend

**System Information** Win10 nVidia Quadro **Blender Version** Broken: 2.8 faf43ff9ad8 Worked: (optional) **Short description of error** When there's multiple modifiers in the stack and you attempt to "separate by selection" the last piece of a mesh, you'll get a crash **Exact steps for others to reproduce the error** - Load attached blend (a Plane, with sub-d + solidify mods, knife'd into 5 pieces) - Also repros with solidify + bevel (all at default settings) - Select a piece and "Separate by selection" - Do this for all 5 pieces (crashes once you try the 5th piece) ``` BLI_assert(origindex_edge != NULL); ``` ``` blender.exe!applyModifier(ModifierData * md, const ModifierEvalContext * ctx, Mesh * mesh) Line 777 C blender.exe!modifier_applyModifier_DM_deprecated(ModifierData * md, const ModifierEvalContext * ctx, DerivedMesh * dm) Line 1171 C blender.exe!modwrap_applyModifier(ModifierData * md, const ModifierEvalContext * ctx, DerivedMesh * dm) Line 840 C blender.exe!editbmesh_calc_modifiers(Depsgraph * depsgraph, Scene * scene, Object * ob, BMEditMesh * em, unsigned __int64 dataMask, DerivedMesh * * r_cage, DerivedMesh * * r_final) Line 2717 C blender.exe!editbmesh_build_data(Depsgraph * depsgraph, Scene * scene, Object * obedit, BMEditMesh * em, unsigned __int64 dataMask) Line 3001 C blender.exe!makeDerivedMesh(Depsgraph * depsgraph, Scene * scene, Object * ob, BMEditMesh * em, unsigned __int64 dataMask, const bool build_shapekey_layers) Line 3058 C blender.exe!BKE_object_handle_data_update(Depsgraph * depsgraph, Scene * scene, Object * ob) Line 203 C blender.exe!BKE_object_eval_uber_data(Depsgraph * depsgraph, Scene * scene, Object * ob) Line 313 C blender.exe!std::_Invoker_functor::_Call<void (__cdecl*&)(Depsgraph *,Scene *,Object *),Depsgraph *,Scene * &,Object * &>(void(*)(Depsgraph *, Scene *, Object *) & _Obj, Depsgraph * && <_Args_0>, Scene * & <_Args_1>, Object * & <_Args_2>) C++ ``` [crash.blend](https://archive.blender.org/developer/F4142040/crash.blend)

Jesse Yurkovich commented

2018-08-07 03:28:32 +02:00

Added subscriber: @deadpin