distort(6x) XScreenSaver manual distort(6x)
NAME
distort - distort the content of the screen in interesting ways
SYNOPSIS
distort [-root] [-window] [-mono] [-install] [-noinstall] [-visual vis-
ual] [-window-id window-id] [-delay usecs] [-duration secs] [-radius
pixels] [-speed int] [-number int] [-swamp] [-bounce] [-reflect] [-vor-
tex] [-magnify] [-blackhole] [-slow] [-shm] [-no-shm] [-fps]
DESCRIPTION
The distort program takes an image and lets circular zones of distor-
tion wander randomly around it, distorting what is under them. The
mode of distortion and the overall behaviour of the zones can be influ-
enced 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, grabVide-
oFrames, 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 mi-
croseconds.
-duration seconds
How long to run before loading a new image. Default 120 sec-
onds.
-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. WARN-
ING: 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 © 1998 by Jonas Munsin and Jamie Zawinski. Permission to
use, copy, modify, distribute, and sell this software and its documen-
tation for any purpose is hereby granted without fee, provided that the
above copyright notice appear in all copies and that both that copy-
right notice and this permission notice appear in supporting documenta-
tion. No representations are made about the suitability of this soft-
ware for any purpose. It is provided "as is" without express or im-
plied 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.
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