Provided by: xscreensaver-data-extra_5.07-0ubuntu3_i386 bug

NAME

       interference - decaying sinusoidal waves

SYNOPSIS

       interference  [-display host:display.screen] [-visual visual] [-window]
       [-root] [-count number]  [-gridsize  number]  [-delay  number]  [-speed
       number]  [-radius number] [-ncolors number] [-color-shift number] [-hue
       number] [-no-db] [-fps]

DESCRIPTION

       Another  color-field  hack,  this  one  works  by  computing   decaying
       sinusoidal  waves,  and  allowing  them to interfere with each other as
       their origins move.

OPTIONS

       -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.

       -count number
               Number of Waves.  0 - 20.  Default: 3.

       -gridsize number
               Magnification. 1 - 20.  Default: 4.

       -delay number
               Per-frame  delay,  in  microseconds.   Default:   30000   (0.03
               seconds.).

       -speed number
               Wave Speed.  1 - 100.  Default: 30.

       -radius number
               Wave Size.  50 - 1500.   Default: 800.

       -ncolors number
               Number of Colors.  Default: 128.

       -color-shift number
               Color Contrast.  0 - 100.  Default: 60.

       -hue number
               Hue  of  the  base  color (0-360, as in HSV space.)  Default 0,
               meaning random.

       -db | -no-db
               Whether to double buffer.

       -fps    Display the current frame rate and CPU load.

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  ©  2002  by  Hannu Mallat.  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

       Hannu Mallat.