This node allows splitting up a geometry into groups. A group is defined as all
elements with the same group id. The output contains an instance per group.
The `Group ID` output can be used for further deterministic processing.
The node supports meshes, curves, point clouds and instances. It only works
on the top-level geometry, so it does not go into nested instances because it
also generates new instances.
Co-authored-by: Hans Goudey <hans@blender.org>
Pull Request: https://projects.blender.org/blender/blender/pulls/113083