[\-visual \fIvisual\fP]
[\-window]
[\-root]
-[-delay \fInumber\fP]
-[-fps]
+[\-delay \fInumber\fP]
+[\-mono]
+[\-wireframe]
+[\-fps]
.SH DESCRIPTION
This draws Escher's "Impossible Cage", a 3d analog of a moebius strip,
and rotates it in three dimensions.
.B \-delay \fInumber\fP
Per-frame delay, in microseconds. Default: 25000 (0.03 seconds.).
.TP 8
+.B \-mono
+Render solid instead of textured.
+.TP 8
+.B \-wireframe
+Render in wireframe instead of textured.
+.TP 8
.B \-fps | \-no-fps
Whether to show a frames-per-second display at the bottom of the screen.
.SH ENVIRONMENT