Section: XScreenSaver manual (6)
Updated: 5.40 (12-Aug-2018)
distort - distort the content of the screen in interesting ways
[-root] [-window] [-mono] [-install] [-noinstall] [-visual visual
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
for more details.
accepts the following options:
Draw on the root window.
Draw on a newly-created window. This is the default.
If on a color display, pretend we're on a monochrome display.
Install a private colormap for the window.
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.
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.
Let zones wander around and bounce off the window border. This is the
Mode of distortion that resembles reflection by a cylindrical mirror.
Whirlpool-shaped distortion. Way cool.
This mode of distortion looks like a magnifying glass.
Suck your pixels beyond the event horizon. Favourite mode of Dr
Make the zone wander slower.
Use shared memory extension.
Don't use shared memory extension.
Display the current frame rate and CPU load.
to get the default host and display number
to get the name of a resource file that overrides the global resources
stored in the RESOURCE_MANAGER property.
Copyright © 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
Jonas Munsin <firstname.lastname@example.org
> and Jamie Zawinski <email@example.com
This manual page by Matthias Warkus <firstname.lastname@example.org