debug_combine.gd

## Debug: inspect blend shape array layouts of imported part meshes.
extends SceneTree

func _init() -> void:
	var scene: PackedScene = load("res://synty_assets/meshes/Species/Humans/SK_HUMN_BASE_01_01HEAD_HU01.fbx")
	var instance := scene.instantiate()
	var mesh_instance: MeshInstance3D = null
	var stack := [instance]
	while not stack.is_empty():
		var node: Node = stack.pop_back()
		if node is MeshInstance3D and (node as MeshInstance3D).mesh != null:
			mesh_instance = node
			break
		stack.append_array(node.get_children())

	var mesh := mesh_instance.mesh as ArrayMesh
	print("mesh: %s, surfaces=%d, blend shapes=%d, mode=%d" % [
		mesh.resource_name, mesh.get_surface_count(), mesh.get_blend_shape_count(), mesh.blend_shape_mode])
	var arrays := mesh.surface_get_arrays(0)
	var vcount := (arrays[Mesh.ARRAY_VERTEX] as PackedVector3Array).size()
	print("base: vcount=%d" % vcount)
	for k in Mesh.ARRAY_MAX:
		if arrays[k] != null:
			print("  base array[%d]: %s size=%s" % [k, typeof(arrays[k]), arrays[k].size() if arrays[k] is Array or "size" in ["x"] else str(arrays[k].size())])

	var blends := mesh.surface_get_blend_shape_arrays(0)
	print("blend entries: %d" % blends.size())
	for b in mini(3, blends.size()):
		var entry: Array = blends[b]
		var sizes := []
		for k in Mesh.ARRAY_MAX:
			if entry[k] != null:
				sizes.append("[%d]=%d" % [k, entry[k].size()])
		print("  shape %d (%s): %s" % [b, mesh.get_blend_shape_name(b), ", ".join(sizes)])
	instance.free()
	quit(0)