Provided by: xscreensaver-data-extra_5.08-0ubuntu3_i386 bug
 

NAME

        interference - decaying sinusoidal waves
 

SYNOPSIS

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

DESCRIPTION

        Another color-field hack, this one works by  computing  decaying  sinu-
        soidal  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  sec-
                onds.).
 
        -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.
        X(1), xscreensaver(1)
 

COPYRIGHT

        Copyright  (C)  2002 by Hannu Mallat.  Permission to use, copy, modify,
        distribute, and sell this software and its documentation for  any  pur-
        pose  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 repre-
        sentations are made about the suitability of this software for any pur-
        pose.  It is provided "as is" without express or implied warranty.
 

AUTHOR

        Hannu Mallat.