A Projection represents a simplified camera with a Position, Orientation, and Field Of View Horizontal and Field Of View Vertical. Unlike a real world camera, Projection has a nearest and farthest viewing distance, as defined by the Near Plane and Far Plane properties. For example, Projection can be used to represent a UAV's camera, to allow for projecting video onto terrain. See the Raster and Projection Streams Overview for such an example.