Abstract: Described is a manner of determining the three-dimensional direction of a radiating source. The system uses two pairs of coplanar solid-state radiation detectors perpendicularly arranged. The three-dimensional direction of the radiating source is found through the use of suitably positioned walls or absorbers of the radiation. The lengths of the shadows cast by the walls leads to a change in incident radiation detected by the various detectors. A ratio of the detected incident radiation is uniquely and simply related to the angle of the source in three dimensions. When the three-dimensional direction of the object is determined from two points, the distance to the object from each of the points is calculated using triangulation. A glove having one or more LEDs, uses the system to detect the three-dimensional position of each LED, and the three-dimensional positions of the LEDs are used to determine yaw, pitch and roll.