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glblur(6)		      XScreenSaver manual		     glblur(6)

NAME
       glblur -	3D radial blur texture fields

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

DESCRIPTION
       This  program  draws a box and a	few line segments, and generates a ra-
       dial 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.

       -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.

SEE ALSO
       X(1), xscreensaver(1)

COPYRIGHT
       Copyright (C) 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		      5.44 (20-Mar-2020)		     glblur(6)

NAME | SYNOPSIS | DESCRIPTION | OPTIONS | ENVIRONMENT | SEE ALSO | COPYRIGHT | AUTHOR

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