DragonFly On-Line Manual Pages

distort(6)                    XScreenSaver manual                   distort(6)

NAME
       distort - distort the content of the screen in interesting ways

SYNOPSIS
       distort [-root] [-window] [-mono] [-install] [-noinstall] [-visual
       visual] [-window-id window-id] [-delay usecs] [-duration secs] [-radius
       pixels] [-speed int] [-number int] [-swamp] [-bounce] [-reflect]
       [-vortex] [-magnify] [-blackhole] [-slow] [-shm] [-no-shm] [-fps]

DESCRIPTION
       The distort program takes an image and lets circular zones of
       distortion wander randomly around it, distorting what is under them.
       The mode of distortion and the overall behaviour of the zones can be
       influenced in various ways.

       The image that it manipulates will be grabbed from the portion of the
       screen underlying the window, or from the system's video input, or from
       a random file on disk, as indicated by the grabDesktopImages,
       grabVideoFrames, and chooseRandomImages options in the ~/.xscreensaver
       file; see xscreensaver-demo(1) for more details.

OPTIONS
       distort accepts the following options:

       -root   Draw on the root window.

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

       -mono   If on a color display, pretend we're on a monochrome display.

       -install
               Install a private colormap for the window.

       -noinstall
               Don't 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.

       -window-id window-id
               Specify which window id to use.

       -delay usecs
               Specify the delay between subsequent animation frames in
               microseconds.

       -duration seconds
               How long to run before loading a new image.  Default 120
               seconds.

       -radius pixels
               Specify the radius of the distortion zone in pixels.

       -speed int
               Specify the speed at which the distortion zone moves, where 0
               is slow, higher numbers are faster (10 is pretty fast.)

       -number int
               Specify the number of distortion zones.

       -swamp  Instead of letting zones wander around, let small zones pop up
               like bubbles in a swamp and leave permanent distortion.
               WARNING: this option uses a colossal amount of memory: keep the
               -radius small when using -swamp.

       -bounce Let zones wander around and bounce off the window border. This
               is the default.

       -reflect
               Mode of distortion that resembles reflection by a cylindrical
               mirror.

       -vortex Whirlpool-shaped distortion. Way cool.

       -magnify
               This mode of distortion looks like a magnifying glass.

       -blackhole
               Suck your pixels beyond the event horizon. Favourite mode of Dr
               Stephen Hawking.

       -slow   Make the zone wander slower.

       -shm    Use shared memory extension.

       -no-shm Don't use shared memory extension.

       -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), xscreensaver-demo(1), xscreensaver-getimage(1)

COPYRIGHT
       Copyright (C) 1998 by Jonas Munsin and Jamie Zawinski.  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.

AUTHORS
       Jonas Munsin <jmunsin@iki.fi> and Jamie Zawinski <jwz@jwz.org>.  This
       manual page by Matthias Warkus <mawa@iname.com>, 17-Oct-1999.

X Version 11                  5.34 (24-Oct-2015)                    distort(6)