Display the polytope as a solid object.
.TP 8
.B \-transparent
-Display the polytope as a transparent object. Default.
+Display the polytope as a transparent object (default).
.PP
The following two options are mutually exclusive. They determine how
to color the polytope.
and yz planes. To examine the polytope at your leisure, it is best to
set all speeds to 0. Otherwise, the polytope will rotate while the
left mouse button is not pressed.
+.B \-fps
+Display the current frame rate, CPU load, and polygon count.
.SH ENVIRONMENT
.PP
.TP 8