NAME

       gflux - rippling surface graphics hack

SYNOPSIS

       gflux  [--display host:display.screen] [--window] [--root] [--window-id number][--install]
       [--visual visual] [--delay microseconds] [--squares num] [--resolution num] [--mode  mode]
       [--flat  num] [--speed num] [--rotationx num] [--rotationy num] [--rotationz num] [--waves
       num] [--waveChange num] [--waveHeight num] [--waveFreq  num]  [--zoom  num]  [--wireframe]
       [--fps]

DESCRIPTION

       The gflux program draws a colourfull animated rippling square rotating in 3D space.

OPTIONS

       gflux accepts the following options:

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

       --root  Draw on the root window.

       --window-id number
               Draw on the specified window.

       --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.

       --squares num
               Specifies the size of the grid in squares. default 19

       --resolution num
               Specifies the wireframe detail of the squares. default 4

       --mode mode
               Specifies the draw method: wireframe; solid (meaning  a  solid  colored  surface);
               light  (same  as  solid,  but  with  lighting  effects); checker (a texture-mapped
               checkerboard pattern); or grab (meaning grab an image to manipulate.)

               When grabbing images, the image will be grabbed from the  portion  of  the  screen
               underlying  the window, or from the system's video input, or from a random file on
               disk,   as   indicated   by   the    grabDesktopImages,    grabVideoFrames,    and
               chooseRandomImages     options     in     the     ~/.xscreensaver     file;    see
               xscreensaver-settings(1) for more details.

       --wireframe
               Same as "-mode wire".

       --flat num
               0 for smooth shading 1 for flat. default 0

       --speed num
               Specifies speed of ripples flowing over the surface. default 0.05

       --rotationx num --rotationy num --rotationz num
               Specifies the speed of rotation of the surface in these axis

       --waves num
               Specifies the number of ripple centres at any one time.  Values should be  greater
               than 1.  default 3

       --waveChange num
               Specifies the duration of a ripple centre.  after this they fade away to be reborn
               elsewhere with a different frequency. default 50

       --waveHeight num
               Specifies the height of ripples on the surface. default 1.0

       --waveFreq num
               Specifies the maximum frequency of ripples. default 3.0

       --zoom num
               Specifies the size of the viewport. Smaller values fill the screen  with  rippling
               surface. default 1.0

       --delay microseconds
               How long to pause between frames.  Default is 20000, or 0.02 second.

       --fps   Display the current frame rate, CPU load, and polygon count.

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.

       XSCREENSAVER_WINDOW
               The window ID to use with --root.

SEE ALSO

       X(1), xscreensaver(1) xscreensaver-settings(1), xscreensaver-getimage(6x)

COPYRIGHT

       Copyright © 2000 by Josiah Pease.  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

       Josiah Pease <gflux@jpease.force9.co.uk>, 10-Jun-2000.