swapping 3D Materials

extends MeshInstance

export (Material) var default_mat
export (Material) var new_mat

# Called when the node enters the scene tree for the first time.
func _ready():
	pass # Replace with function body.


func _process(_delta):
	if Input.is_action_just_pressed("mouse_left"):
		if get("material/0") == default_mat:
			set_surface_material(0, new_mat)
		elif get("material/0") == new_mat:
			set_surface_material(0, default_mat)