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goop(6)			      XScreenSaver manual		       goop(6)

NAME
       goop - squishy transparent oil and bubble screenhack

SYNOPSIS
       goop [--display host:display.screen] [--foreground color] [--background
       color]  [--window]  [--root]  [--window-id  number][--mono] [--install]
       [--visual  visual]  [--transparent]  [--non-transparent]	  [--additive]
       [--subtractive] [--xor] [--no-xor] [--fps]

DESCRIPTION
       The goop	program	draws a	simulation of bubbles in layers	of overlapping
       multicolored translucent	fluid.

OPTIONS
       goop accepts the	following options:

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

       --root  Draw on the root	window.

       --window-id number
	       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.

       --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.

       --count integer
	       How many	bubbles	to draw	per layer.  Default: random.

       --planes	integer
	       How  many  planes  to  draw.   Default: random, based on	screen
	       depth.

       --delay microseconds
	       How much	of a delay should be introduced	between	steps  of  the
	       animation.  Default 12000, or about 0.012 seconds.

       --transparent
	       If --layers is greater than 1, then each	layer will be drawn in
	       one  color,  and	 when  they overlap, the colors	will be	mixed.
	       This is the default.

       --non-transparent
	       Turns off --transparent.

       --additive
	       If --transparent	is specified, then this	option means that  the
	       colors  will  be	mixed using an additive	color model, as	if the
	       blobs were projected light.  This is the	default.

       --subtractive
	       If --transparent	is specified, then this	option means that  the
	       colors will be mixed using a subtractive	color model, as	if the
	       blobs were translucent filters.

       --xor   Draw with xor instead of	the other color	tricks.

       --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.

       XSCREENSAVER_WINDOW
	       The window ID to	use with --root.

SEE ALSO
       X(1), xscreensaver(1)

COPYRIGHT
       Copyright (C) 1997 by Jamie Zawinski.  Permission to use, copy, modify,
       distribute, and sell this software and its documentation	for  any  pur-
       pose  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	repre-
       sentations are made about the suitability of this software for any pur-
       pose.  It is provided "as is" without express or	implied	warranty.

AUTHOR
       Jamie Zawinski <jwz@jwz.org>, 11-Jun-97.

X Version 11		      6.09 (07-Jun-2024)		       goop(6)

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