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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]  [--vi-
     sual  visual]  [--transparent] [--non-transparent] [--additive] [--subtrac-
     tive] [--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 ani-
	     mation.  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 col-
	     ors 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 col-
	     ors  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  re-
	     sources 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 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  no-
     tice 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.

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

X Version 11		       6.15 (30-Mar-2026)			 goop(6)

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