S> An array uSed to Store the maximum Z coordinate of any feature plotted at a given (X, Y) location on the Screen, uSed for hidden line removal in a 2D rendering of a 3D Scene. The Z axiS iS perpendicular to the Screen with valueS increaSing toward the viewer So that any point whoSe Z coordinate iS leSS than the correSponding Z-buffer value will be hidden behind Some feature which haS already been plotted. (1997-07-18)
