@tool
extends SpotLight3D
class_name VolumetricLight3D
var node:MeshInstance3D=MeshInstance3D.new()
var mesh:CylinderMesh=CylinderMesh.new()
@export var material:Material=Material.new()

func _ready() -> void:
	mesh.top_radius=0
	mesh.material=material
	node.mesh=mesh
	node.rotation_degrees.x=90
	self.add_child(node)
	mesh.height=self.spot_range
	node.position.z=-(self.spot_range/2)
	var angle_rad=deg_to_rad(self.spot_angle)
	mesh.bottom_radius=self.spot_range * tan(angle_rad)

func _process(delta: float) -> void:
	if Engine.is_editor_hint():
		mesh.height=self.spot_range
		node.position.z=-(self.spot_range/2)
		var angle_rad=deg_to_rad(self.spot_angle)
		mesh.bottom_radius=self.spot_range * tan(angle_rad)
	else:
		self.process_mode=Node.PROCESS_MODE_DISABLED