A parallax scrolling layer to be used with [ParallaxBackground]. A ParallaxLayer must be the child of a [ParallaxBackground] node. All child nodes will be affected by the parallax scrolling of this layer. Return the mirroring of the ParallaxLayer. Return the motion scale of the ParallaxLayer. Set the mirroring of the ParallaxLayer. If an axis is set to 0 then that axis will have no mirroring. Set the motion scale of the ParallaxLayer. If an axis is set to 0 then it will not move at all, it will stick with the camera.