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 © 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.