Defines a 2D polygon for LightOccluder2D. Editor facility that helps you draw a 2D polygon used as resource for [LightOccluder2D]. If [code]true[/code], closes the polygon. A closed OccluderPolygon2D occludes the light coming from any direction. An opened OccluderPolygon2D occludes the light only at its outline's direction. Default value: [code]true[/code]. Set the direction of the occlusion culling or disable it. Default value: [constant CULL_DISABLED]. A [Vector2] array with the index for polygon's vertices positions. Note that the returned value is a copy of the underlying array, rather than a reference. Culling mode for the occlusion. Disabled means no culling. See [member cull_mode]. Culling mode for the occlusion. Sets the culling to be in clockwise direction. See [member cull_mode]. Culling mode for the occlusion. Sets the culling to be in counter clockwise direction. See [member cull_mode].