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XScreenSaver(1)					  XScreenSaver(1)

NAME
       hyperball - 2d projection of a 4d object

SYNOPSIS
       hyperball   [-display   host:display.screen]  [-foreground
       color] [-background color] [-xy float]  [-xz  float]  [-yz
       float]  [-xw  float]  [-yw float] [-zw float] [-observer-z
       int] [-delay usecs] [-window] [-root]  [-mono]  [-install]
       [-visual visual]

DESCRIPTION
       The hyperball program displays a wireframe projection of a
       hyperball which is rotating at user-specified rates around
       any or all of its four axes.

OPTIONS
       hyperball 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 100000, or  about
	       1/10th second.

       -observer-z int
	       How  far	 away  the observer is from the center of
	       the cube (the cube is one unit per side.)  Default
	       5.

       -xw float

       -xy float

       -xz float

       -yw float

       -yz float

       -zw float
	       The  amount that the ball should be rotated around
	       the specified axis at each frame of the animation,
	       expressed  in  radians.	 These	should	be  small
	       floating-point values (less than 0.05 works best.)
	       Default: xy=0.01, xz=0.005, yw=0.01.

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_MAN
	       AGER property.

SEE ALSO
       X(1), xscreensaver(1)

COPYRIGHT
       Copyright    2000 by Joe Keane.	Permission to use, copy,
       modify, distribute, and sell this software and  its  docu
       mentation  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 per
       mission 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
       Joe Keane <jgk@jgk.org>

X Version 11					  XScreenSaver(1)

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