NAME

       glcells - growing cells graphics hack

SYNOPSIS

       glcells  [-display  host:display.screen]  [-window]  [-root]  [-install]  [-visual visual]
       [-delay num] [-pause num] [-maxcells  num]  [-radius  num]  [-seeds  num]  [-quality  num]
       [-minfood  num]  [-maxfood  num]  [-divideage  num] [-mindist num] [-keepold] [-wireframe]
       [-fps]

DESCRIPTION

       The glcells program draws cells that divide exponentially, eat and eventually die.

OPTIONS

       glcells 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.

       -pause num
               Specifies  the pause at the end of the animation (all cells dead or maximum amount
               of cells reached). Unit is in frames, default 20.

       -maxcells num
               Specifies the maximum number of cells on screen (dead cells also  count,  even  if
               invisible). Default is 800.

       -radius num
               Specifies the radius of the cells. Default is 40.

       -seeds num
               Specifies the number of cells when animation starts. Default is 1.

       -quality num
               Specifies  subdivision  quality  of  the  spheres  used to draw the cells [0...5].
               Default is 3.

       -minfood num
               Food is ditributed randomly on the screen (Yes,  the  cells  need  to  eat).  This
               parameter specifies the minimum amount of food per pixel. Default is 5.

       -maxfood num
               Food  is  ditributed  randomly  on  the  screen (Yes, the cells need to eat). This
               parameter specifies the maximum amount of food per pixel. Default is 20.

       -divideage num
               Specifies the minimum age in frames a cell needs to have  before  beeing  able  to
               divide. Default is 20

       -mindist num
               Specifies the minimum distance between cells. Default 1.4

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

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

       -wireframe
               Draw wireframe only.

       -keepold
               Dead cells stay on screen.

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) xscreensaver-demo(1),

COPYRIGHT

       Copyright © 2007 by Matthias Toussaint.  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

       Matthias             Toussaint            <glcells@mtoussaint.de>,            17-Jun-2007,
       http://www.mtoussaint.de/bits.html.