BoneAttachment3D not following the bone I want it to

Help
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1

Godot Version

Godot stable version 4.3

Question

I have an imported model from blender as a Godot scene with some other nodes like an AnimationPlayer and an AudioStreamPlayer. Now I wanted to have a system so that I can bind as many models as I want to any bone of the Skeleton3D of the model. So I came up with this code :

func create_gear(
	model_scene: PackedScene,
	bone_name: String
	) -> Gear:
	
	var model: Node3D = model_scene.instantiate()
	var gear: Gear = Gear.new()
	gear.add_child(model)
	gear.set_use_external_skeleton(true)
	gear.set_external_skeleton(skeleton_path)
	model_owner.add_child(gear)
	return gear

Here model_owner is simply the root of the scene, meaning the parent of the imported model and those other nodes I mentioned, skeleton_path is obtained with this :

get_path_to(find_child("Skeleton3D"))

And Gear is just this :

extends BoneAttachment3D
class_name Gear

Now after running this function the model does appear but it just stays at the origin point of the model and doesn’t follow the bone I want it to. Any ideas why?

2

You must specify a bone_idx for the BoneAttachment3D, you can use the Skeleton’s find_bone function to convert a bone name to an index.