The command DISPLAYÞPreferences display a dialog box.
This controls various modes of display and shading as follows:
Wirefr accuracy - determines the accuracy of drawing curves. It also affects the accuracy of display of wire frame surface models. Each increase in the parameter's value doubles the number of points used. A low number will make smooth curve appear to be made from straight lines.
Wirefr Max curves – determines the density of curves to be drawn on a surface in both directions. Using a small value makes displaying faster, and saves system memory.
Shading accuracy - specifies how accurately surface models are faceted for shading in the graphics window. The choices are coarse, medium and fine and explicit. Explicit requests a number that defines the accuracy.
Shading mode - specifies whether to shade models as two-sided regardless of their normal directions, or single-sided in which parts of models not facing the viewer are displayed in blue. This feature can be very useful when using commands such as blending which require the user to know which way the surfaces are oriented.
Box viewing mode – this option is useful for working with very complex models or slow machines. When this option is set on, only the bounding box of the model is displayed when using the command DISPLAYÞView:Eye Point