decayscreen - make a screen meltdown.

       Vivek Khera <khera@cs.duke.edu>, 05-Aug-93; based  on  code  by  David  Wald,  1988.   Modified  by  jwz,
       28-Nov-1997.   Modified  by  Rick  Schultz  <rick@skapunx.net>  05-Apr-1999.   Modified  by  Vince  Levey
       <vincel@vincel.org> 25-Oct-2001.

X Version 11                                   6.08 (10-Oct-2023)                                decayscreen(6x)

       Copyright  1992  by Vivek Khera.  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.

       The decayscreen program creates a melting effect by randomly shifting rectangles around the screen.

       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-settings(1)
       for more details.

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.

       XSCREENSAVER_WINDOW
               The window ID to use with --root.

       decayscreen - make a screen meltdown.

decayscreen accepts the following options:

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

       --root  Draw on the root window.

       --window-idnumber
               Draw on the specified window.

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

       --install
               Install a private colormap for the window.

       --visualvisual
               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.

       --delaymicroseconds
               Slow it down.

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

       --modemode
               The direction in which the image should tend to slide.  Legal values  are  random  (meaning  pick
               one),  up,  left,  right,  down, upleft, downleft, upright, downright, shuffle (meaning prefer no
               particular direction), in (meaning move things toward the center), out (meaning move things  away
               from  the  center),  melt  (meaning melt straight downward),  stretch (meaning stretch the screen
               downward), and fuzz (meaning go blurry instead of melty).

       --fps   Display the current frame rate and CPU load.

X(1), xscreensaver(1), xscreensaver-settings(1), xscreensaver-getimage(6x)

decayscreen [--display host:display.screen] [--window] [--root] [--window-id number] [--mono] [--install]
       [--visual visual] [--delay usecs] [--duration secs] [--mode mode] [--fps]