starfish



XScreenSaver(1)                                                XScreenSaver(1)




NAME

       starfish - radially-symmetric throbbing colormap-hacking graphics demo


SYNOPSIS

       starfish  [-display  host:display.screen]  [-foreground  color] [-back-
       ground color] [-window] [-root]  [-mono]  [-install]  [-visual  visual]
       [-delay usecs] [-delay2 secs] [-cycle-delay2 usecs] [-thickness pixels]
       [-rotation  degrees]  [-duration  seconds]   [-colors   int]   [-cycle]
       [-no-cycle] [-blob] [-no-blob]


DESCRIPTION

       The  starfish  program  draws radially symmetric objects, which expand,
       contract, rotate, and turn inside out.  It uses  these  shapes  to  lay
       down a field of smooth colors, and then rotates the colormap.


OPTIONS

       starfish 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
               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.

       -delay microseconds
               How  much  of a delay should be introduced between steps of the
               animation.  Default 10000, or about 1/100th second.

       -cycle-delay microseconds
               How long to wait between shifing  the  colormap  by  one  step.
               Default 100000, or about 1/10th second.

       -thickness pixels
               How  wide each color band should be.  Default 0, meaning random
               (the chosen value will be between 0 and 15.)

       -rotation degrees
               How quickly the objects should rotate at each step.  Default 0,
               meaning  random  (the  chosen  value  will  be between 0 and 12
               degrees.)

       -colors int
               How many colors to use.  Default 200.   The  more  colors,  the
               smoother  the  transitions will be, and the nicer the resultant
               images.

       -cycle

       -no-cycle
               Whether to do colormap cycling.  Default true.

       -duration seconds
               How long to run before choosing a new shape.  Default  30  sec-
               onds.

       -delay2 seconds
               When  duration  expires, how long to wait before starting a new
               run.  Default 5 seconds.

       -blob

       -no-blob
               If blob option is specified, then the raw shapes will be shown,
               instead of a field of colors generated from them.


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 © 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.


AUTHOR

       Jamie Zawinski <jwz@jwz.org>, 14-Jun-97.



X Version 11                       14-Jun-97                   XScreenSaver(1)

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