XScreenSaver(1)                                                XScreenSaver(1)


       goop - squishy transparent oil and bubble screenhack


       goop  [-display  host:display.screen]  [-foreground color] [-background
       color] [-window] [-root] [-mono] [-install] [-visual  visual]  [-trans-
       parent] [-non-transparent] [-additive] [-subtractive] [-xor] [-no-xor]


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


       goop accepts the following options:

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

       -root   Draw on the root window.

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

               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

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

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

       -delay microseconds
               How  much  of a delay should be introduced between steps of the
               animation.  Default 100000, or about 1/10th second.

               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.

               Turns off -transparent.

               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.

               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.


       DISPLAY to get the default host and display number.

               to get the name of a resource file that  overrides  the  global
               resources stored in the RESOURCE_MANAGER property.


       X(1), xscreensaver(1)


       Copyright  ©  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.


       Jamie Zawinski <>, 11-Jun-97.

X Version 11                       11-Jun-97                   XScreenSaver(1)

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