BakedLightmap Crash

[zoomercamps]

Godot version:
3.2.3

OS/device including version:
Godot Engine v3.2.3.stable.official - https://godotengine.org
OpenGL ES 2.0 Renderer: Intel(R) Iris(TM) Plus Graphics 655
OpenGL ES 2.0 Batching: ON

Issue description:
Every time I try to bake lightmaps the IDE crash suddenly. I'm trying on Windows OS and Mac OS, with the same result.

Backtrace

handle_crash: Program crashed with signal 11
Dumping the backtrace. Please include this when reporting the bug on https://github.com/godotengine/godot/issues
[1] 1   libsystem_platform.dylib            0x00007fff6a7895fd _sigtramp + 29
[2] 2   ???                                 0x0000000000000000 0x0 + 0
[3] VoxelLightBaker::_plot_face(int, int, int, int, int, Vector3 const*, Vector3 const*, Vector2 const*, VoxelLightBaker::MaterialCache const&, AABB const&) (in Godot) + 5518
[4] VoxelLightBaker::_plot_face(int, int, int, int, int, Vector3 const*, Vector3 const*, Vector2 const*, VoxelLightBaker::MaterialCache const&, AABB const&) (in Godot) + 5518
[5] VoxelLightBaker::_plot_face(int, int, int, int, int, Vector3 const*, Vector3 const*, Vector2 const*, VoxelLightBaker::MaterialCache const&, AABB const&) (in Godot) + 5518
[6] VoxelLightBaker::_plot_face(int, int, int, int, int, Vector3 const*, Vector3 const*, Vector2 const*, VoxelLightBaker::MaterialCache const&, AABB const&) (in Godot) + 5518
[7] VoxelLightBaker::_plot_face(int, int, int, int, int, Vector3 const*, Vector3 const*, Vector2 const*, VoxelLightBaker::MaterialCache const&, AABB const&) (in Godot) + 5518
[8] VoxelLightBaker::_plot_face(int, int, int, int, int, Vector3 const*, Vector3 const*, Vector2 const*, VoxelLightBaker::MaterialCache const&, AABB const&) (in Godot) + 5518
[9] VoxelLightBaker::_plot_face(int, int, int, int, int, Vector3 const*, Vector3 const*, Vector2 const*, VoxelLightBaker::MaterialCache const&, AABB const&) (in Godot) + 5518
[10] VoxelLightBaker::_plot_face(int, int, int, int, int, Vector3 const*, Vector3 const*, Vector2 const*, VoxelLightBaker::MaterialCache const&, AABB const&) (in Godot) + 5518
[11] VoxelLightBaker::_plot_face(int, int, int, int, int, Vector3 const*, Vector3 const*, Vector2 const*, VoxelLightBaker::MaterialCache const&, AABB const&) (in Godot) + 5518
[12] VoxelLightBaker::_plot_face(int, int, int, int, int, Vector3 const*, Vector3 const*, Vector2 const*, VoxelLightBaker::MaterialCache const&, AABB const&) (in Godot) + 5518
[13] VoxelLightBaker::_plot_face(int, int, int, int, int, Vector3 const*, Vector3 const*, Vector2 const*, VoxelLightBaker::MaterialCache const&, AABB const&) (in Godot) + 5518
[14] VoxelLightBaker::plot_mesh(Transform const&, Ref<Mesh>&, Vector<Ref<Material> > const&, Ref<Material> const&) (in Godot) + 1658
[15] BakedLightmap::bake(Node*, bool) (in Godot) + 2698
[16] BakedLightmapEditorPlugin::_bake() (in Godot) + 123
[17] MethodBind0::call(Object*, Variant const**, int, Variant::CallError&) (in Godot) + 88
[18] Object::call(StringName const&, Variant const**, int, Variant::CallError&) (in Godot) + 357
[19] Object::emit_signal(StringName const&, Variant const**, int) (in Godot) + 1901
[20] Object::emit_signal(StringName const&, Variant const&, Variant const&, Variant const&, Variant const&, Variant const&) (in Godot) + 114
[21] BaseButton::_pressed() (in Godot) + 366
[22] BaseButton::on_action_event(Ref<InputEvent>) (in Godot) + 467
[23] BaseButton::_gui_input(Ref<InputEvent>) (in Godot) + 193
[24] MethodBind1<Ref<InputEvent> >::call(Object*, Variant const**, int, Variant::CallError&) (in Godot) + 277
[25] Object::call_multilevel(StringName const&, Variant const**, int) (in Godot) + 232
[26] Object::call_multilevel(StringName const&, Variant const&, Variant const&, Variant const&, Variant const&, Variant const&) (in Godot) + 115
[27] Viewport::_gui_call_input(Control*, Ref<InputEvent> const&) (in Godot) + 831
[28] Viewport::_gui_input_event(Ref<InputEvent>) (in Godot) + 2089
[29] Viewport::input(Ref<InputEvent> const&) (in Godot) + 250
[30] Viewport::_vp_input(Ref<InputEvent> const&) (in Godot) + 217
[31] MethodBind1<Ref<InputEvent> const&>::call(Object*, Variant const**, int, Variant::CallError&) (in Godot) + 277
[32] Object::call(StringName const&, Variant const**, int, Variant::CallError&) (in Godot) + 357
[33] Object::call(StringName const&, Variant const&, Variant const&, Variant const&, Variant const&, Variant const&) (in Godot) + 136
[34] SceneTree::call_group_flags(unsigned int, StringName const&, StringName const&, Variant const&, Variant const&, Variant const&, Variant const&, Variant const&) (in Godot) + 924
[35] SceneTree::input_event(Ref<InputEvent> const&) (in Godot) + 387
[36] InputDefault::_parse_input_event_impl(Ref<InputEvent> const&, bool) (in Godot) + 3260
[37] InputDefault::flush_accumulated_events() (in Godot) + 41
[38] OS_OSX::run() (in Godot) + 374
[39] main (in Godot) + 529
[40] 40  libdyld.dylib                       0x00007fff6a590cc9 start + 1
-- END OF BACKTRACE --

Steps to reproduce:
Click on "Bake Lightmaps"

[Calinou]

This will likely be fixed by #44628.

[JFonS]

Looking at the stack trace, it seems like the crash is coming from the voxel light baker. So it probably crashes when using "capture" data even after merging #44628.

@zoomercamps Do you have a project that can easily reproduce the issue? The crash is likely caused by a corner-case in the triangle plotting code, so without the same geometry I can't reproduce it.

[Calinou]

@zoomercamps Bump 🙂 See the above comment.

[akien-mga]

No answer, so closing.