Provided by: xscreensaver-data-extra_5.34-2ubuntu1_amd64 bug


       goop - squishy transparent oil and bubble screenhack


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


       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 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.

               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

               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.


       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  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.


       Jamie Zawinski <>, 11-Jun-97.