NAME

       cubicgrid - rotating 3D lattice seen from inside

SYNOPSIS

       cubicgrid  [-display  host:display.screen]  [-visual  visual] [-window] [-root] [-install]
       [-delay microseconds] [-mono] [-speed number] [-zoom number]  [-ticks  number]  [-bigdots]
       [-fps]

DESCRIPTION

       This program shows the view of an observer located inside a set of points arranged to a 3D
       lattice.  As the lattice rotates, various view-throughs appear and evolve.  A simple  idea
       with interesting results.

OPTIONS

       cubicgrid accepts the following options:

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

       -root   Draw on the root window.

       -install
               Install a private colormap for the window.

       -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.

       -delay microseconds
               How long to pause between frames.  Default is 20000, or 0.02 second.

       -mono   Draw in black and white.  If not used, a fixed all-color scheme is chosen.

       -speed number
               The maximum speed of the rotation.  The actual speed and axis change smoothly  for
               better effect.  0.5 - 10.  The default is 1.0.

       -zoom number
               Size  of  the  lattice.   Ideally  it should fill all the screen, but one may find
               other values also interesting.  5 - 50.  The default of 20 should  do  for  common
               screen aspect ratios.

       -ticks number
               The count of points drawn along every axis.  10 - 100.  The default is 30.

       -bigdots
               Draw the points twice as big.

       -fps    Display the current frame rate, CPU load, and polygon count.

ENVIRONMENT

       DISPLAY to get the default host and display number.

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

SEE ALSO

       X(1), xscreensaver(1)

COPYRIGHT

       Copyright © 2007 by Vasek Potocek.  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.

AUTHOR

       Vasek Potocek <vasek.potocek@post.cz>, Dec-28-07.