A word of warning
- I don't work a lot with Python
This is still crashing Blender once you connect any output link of the custom node- I am just experimenting to see what is possible
Install
- Just clone this repo in your
blender-2.92.0/2.92/scripts/addons/folder
Debugging the last added node
Just go to the scripting tab and write:
node = bpy.app.driver_namespace["customnode"]Then use autocomplete etc. like:
Interesting files to learn from
- Scripting tag -> Templates -> Python -> Custom Nodes
- blender-2.92.0/2.92/scripts/startup/nodeitems_builtins.py
- blender-2.92.0/2.92/scripts/startup/bl_operators/geometry_nodes.py
- blender-2.92.0/2.92/scripts/startup/nodeitems_builtins.py
- blender-2.92.0/2.92/scripts/modules/nodeitems_utils.py
Preview
Useful snippets
geonodes = bpy.data.node_groups['Geometry Nodes']
groupinput = geonodes.nodes.get("Group Input")
groupoutput = geonodes.nodes.get("Group Output")
tr = geonodes.nodes.get("Transform")
# Remove default link
geonodes.links.remove(geonodes.links[0])
# If it exists:
customnode = geonodes.nodes['Custom Node']
Stack trace of crash
Stack trace:
blender.exe :0x00007FF6AB8C1210 GeometryNodesEvaluator::get_unlinked_input_value
blender.exe :0x00007FF6AB8C1040 GeometryNodesEvaluator::get_input_value
blender.exe :0x00007FF6AB8BF370 GeometryNodesEvaluator::compute_output_and_forward
blender.exe :0x00007FF6AB8BF8E0 GeometryNodesEvaluator::execute
blender.exe :0x00007FF6AB8BEAF0 compute_geometry
blender.exe :0x00007FF6AB8C1420 modifyGeometry
blender.exe :0x00007FF6AB6D50B0 modifier_modify_mesh_and_geometry_set
blender.exe :0x00007FF6AB6D3D30 mesh_calc_modifiers
blender.exe :0x00007FF6AB6D3A30 mesh_build_data
blender.exe :0x00007FF6AB6D60F0 makeDerivedMesh
blender.exe :0x00007FF6AB6B55D0 BKE_object_handle_data_update
blender.exe :0x00007FF6AB6B5300 BKE_object_eval_uber_data
blender.exe :0x00007FF6AF37A8F0 std::_Func_impl_no_alloc<std::_Binder<std::_Unforced,void (__cdecl&)(Depsgraph * __ptr64,Main * __p
blender.exe :0x00007FF6AF378CD0 blender::deg::`anonymous namespace'::evaluate_node
blender.exe :0x00007FF6AF378C80 blender::deg::`anonymous namespace'::deg_task_run_func
tbb.dll :0x00007FFB00BA51D0 tbb::interface7::internal::isolate_within_arena
blender.exe :0x00007FF6AF3FDDD0 tbb::internal::function_task<Task>::execute
tbb.dll :0x00007FFB00BB37A0 tbb::recursive_mutex::scoped_lock::internal_try_acquire
tbb.dll :0x00007FFB00BB37A0 tbb::recursive_mutex::scoped_lock::internal_try_acquire
tbb.dll :0x00007FFB00BA51D0 tbb::interface7::internal::isolate_within_arena
tbb.dll :0x00007FFB00BAA490 tbb::task_scheduler_init::terminate
tbb.dll :0x00007FFB00BB19C0 tbb::thread_bound_filter::try_process_item
tbb.dll :0x00007FFB00BB19C0 tbb::thread_bound_filter::try_process_item
ucrtbase.dll :0x00007FFB148B1B20 configthreadlocale
KERNEL32.DLL :0x00007FFB14B17020 BaseThreadInitThunk
ntdll.dll :0x00007FFB16ADD220 RtlUserThreadStart
Relevant C++ source: (Relevant Blender C++)[https://github.com/blender/blender/tree/master/source/blender/nodes]
Relevant C++ source: (Relevant Blender C++)[https://github.com/blender/blender/tree/master/source/blender/nodes]
Figure out what is different between my custom node and a working node
