Provided by: xscreensaver-gl_5.34-2ubuntu1_amd64 bug


       cityflow - waves of boxes.


       cityflow [-display host:display.screen] [-visual visual] [-window] [-root] [-delay number]
       [-count number] [-wave-speed number] [-wave-radius number] [-waves number] [-skew  number]
       [-wireframe] [-fps]


       Waves move across a sea of boxes. The city swells. The walls are closing in.


       -visual visual
               Specify  which visual to use.  Legal values are the name of a visual class, or the
               id number (decimal or hex) of a specific visual.

       -window Draw on a newly-created window.  This is the default.

       -root   Draw on the root window.

       -delay number
               Per-frame delay, in microseconds.  Default: 20000 (0.02 seconds).

       -count number
               Boxes.    50 - 4000.  Default: 800.

       -wave-speed number
               Wave speed.  5 - 150.  Default: 25.

       -wave-radius number
               Wave overlap.  5 - 512.  Default: 256.

       -waves number
               Wave complexity.  1 - 20.  Default: 6.

       -skew number
               Skew.  0 - 45. Default: 12.

       -wireframe | -no-wireframe
               Render in wireframe instead of solid.

       -fps | -no-fps
               Whether to show a frames-per-second display at the bottom of the screen.


       DISPLAY to get the default host and display number.

               to get the name of a resource file that overrides the global resources  stored  in
               the RESOURCE_MANAGER property.


       X(1), xscreensaver(1)


       Copyright © 2012 by Jamie Zawinski.  Permission to use, copy, modify, distribute, and sell
       this software and its documentation  for  any  purpose  is  hereby  granted  without  fee,
       provided that the above copyright notice appear in all copies and that both that copyright
       notice and this permission notice appear in supporting documentation.  No  representations
       are  made  about the suitability of this software for any purpose.  It is provided "as is"
       without express or implied warranty.


       Jamie Zawinski.