The rendering of still and moving images with lifelike depth, such as a 3D movie. Depending on the technology, the viewer may be required to wear eyeglasses or not. For details, see 3D visualization and 3D rendering. The Other 3D Stereoscopic 3D differs from designing in 3D, in which objects have width, height and depth but do not have the illusion of genuine depth. See 3D modeling and CAD.