The EIGHT Manual: A System for Geometric Modelling and Three-Dimensional Graphics on the Lisp Machine (opens in new tab)

The EIGHT Manual: A System for Geometric Modelling and Three-Dimensional Graphics on the Lisp Machine Donald, Bruce R. We describe a simple geometric modelling system called Eight which supports interactive creation, editing, and display of three-dimensional polyhedral solids. Perspective views of a polyhedral environment may be generated, and hidden surfaces removed. Eight proved useful for creating world models, and as an underlying system for modelling object interaction in robotics resear...