NAME

       gravitywell - spaaaaace.

SYNOPSIS

       gravitywell  [-display  host:display.screen]  [-visual  visual]  [-window] [-root] [-delay
       number] [-speed number] [-resolution number] [-grid-size number] [-count number]

DESCRIPTION

       Massive objects distort space in a two dimensional universe.

OPTIONS

       -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.

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

       -root   Draw on the root window.

       -delay number
               Per-frame delay, in microseconds.  Default: 30000 (0.03 seconds).

       -speed number
               Animation speed. 2.0 means twice as fast, 0.5 means half as fast.

       -resolution number
               Density of the underlying universe. Default: 1.0.

       -grid-size number
               Grid Size. Smaller values are more dense. Default: 1.0.

       -count number
               Number of stars.  Default: 15.

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.

SEE ALSO

       X(1), xscreensaver(1)

COPYRIGHT

       Copyright © 2019 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.