Definitions for "Depth Cueing"
Keywords:  viewpoint, hue, viewer, cueing, layman
Changing the color and brightness of a 3D image as it moves, relevant to the viewer. Color becomes less bright as the images moves away, brighter as it moves closer.
An object's color is changed in relation to the object's distance from the viewer as to make objects in the distance appear to fade.
This creates distance by reducing colour and hue the farther away an object is from the viewpoint.