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interference(6) 	       XScreenSaver manual		 interference(6)

NAME
     interference - decaying sinusoidal waves

SYNOPSIS
     interference  [--display  host:display.screen] [--visual visual] [--window]
     [--root] [--window-id number] [--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.

     --window-id number
	     Draw on the specified window.

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

     --gridsize number
	     Magnification. 1 - 20.  Default: 2.

     --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: 192.

     --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 re-
	     sources stored in the RESOURCE_MANAGER property.

     XSCREENSAVER_WINDOW
	     The window ID to use with --root.

SEE ALSO
     X(1), xscreensaver(1)

COPYRIGHT
     Copyright (C) 2002 by Hannu Mallat.  Permission to use, copy, modify,  dis-
     tribute,  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  no-
     tice 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.

X Version 11		       6.15 (30-Mar-2026)		 interference(6)

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<https://man.freebsd.org/cgi/man.cgi?query=interference&sektion=6&manpath=FreeBSD+Ports+15.1.quarterly>

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