1. A system for providing images of an environment to the viewpoint of a display, said system comprising: at least one image source having a field of view and providing an image of the environment; and a processor in communication with said image source and the display, wherein said processor defines a mapping surface at a distance from said image source and display that approximates the environment within the field of view of said image source, and wherein said processor defines a model that relates a geometry of said image source, a geometry of said display, and a geometry of said mapping surface to each other.