diff --git a/sceen/platform/screenDoor.gd b/sceen/platform/screenDoor.gd
index 81f40bf..d961891 100644
--- a/sceen/platform/screenDoor.gd
+++ b/sceen/platform/screenDoor.gd
@@ -71,8 +71,6 @@ func _on_left_animation_player_animation_finished(anim_name: StringName) -> void
 		$Timer.stop()
 		is_dark = true
 		_set_mtd(is_dark)
-		if screenDoorFaultState == ScreenDoor_Fault_State.closeFault:
-			$SpotLight3D.show()	
 		
 
 ## 屏蔽门的故障枚举
@@ -130,11 +128,12 @@ func _on_timer_timeout():
 	_set_mtd(is_dark)
 						
 func _set_mtd(dark):
+	var self_material = $MTD.get_active_material(0)
 	if is_dark:
-		mtd_material.set_shader_parameter('is_dark', true)
+		self_material.set_shader_parameter('is_dark', true)
 		$SpotLight3D.hide()
 	else:
-		mtd_material.set_shader_parameter('is_dark', false)
+		self_material.set_shader_parameter('is_dark', false)
 		$SpotLight3D.show()
 						
 func _ready():