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 © 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 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.

AUTHOR

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