Xpgs consists of a suite of programs for the generation of Single Image Random Dots Stereograms, commonly known as SIRDS or RDS. The main program reads in a 3D dataset which describes an object and outputs an animation of the object rotating about an arbitrary axis. A frame can be saved in a compressed format, as an X bitmap or as a PostScript file. The other programs allow you to manipulate scenes and convert between standard data formats and that required by xpgs.
