glblur



XScreenSaver(1)                                                XScreenSaver(1)




NAME

       glblur - 3D radial blur texture fields


SYNOPSIS

       menger   [-display   host:display.screen]  [-visual  visual]  [-window]
       [-root] [-delay  number]  [-blursize  number]  [-no-wander]  [-no-spin]
       [-spin [XYZ]] [-wireframe] [-fps]


DESCRIPTION

       This  program  draws  a  box  and  a few line segments, and generates a
       radial blur outward from it.  This creates flowing field effects.

       This is done by rendering the scene into a small texture, then  repeat-
       edly  rendering increasingly-enlarged and increasingly-transparent ver-
       sions of that texture onto the  frame  buffer.   As  such,  it’s  quite
       graphics  intensive:  don’t bother trying to run this if you don’t have
       hardware-accelerated texture support.  It will hurt your machine bad.


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:  10000  (0.01  sec-
               onds.).

       -blursize number
               How  many  copies  of the scene should be laid down to make the
               vapor trail.  Default:  15.   Larger  numbers  create  smoother
               fields, but are slower.

       -wander | -no-wander
               Whether the object should wander around the screen.

       -spin [XYZ]
               Around which axes should the object spin?

       -no-spin
               None.

       -wireframe
               Render in wireframe instead of solid.

       -fps | -no-fps
               Whether  to  show  a frames-per-second display at the bottom of
               the screen.


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  ©  2002 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, with inspiration from a tutorial by Dario Corno.



X Version 11                                                   XScreenSaver(1)

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