getUpdateType() {

		let updateType = NodeUpdateType.NONE;

		if ( this.scope === ScreenNode.SIZE || this.scope === ScreenNode.VIEWPORT ) {

			updateType = NodeUpdateType.RENDER;

		}

		this.updateType = updateType;

		return updateType;

	}
This method is overwritten since the node's update type depends on the selected scope.

@return {NodeUpdateType} The update type.