glblur(6x) XScreenSaver manual glblur(6x)
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 © 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 5.45 (08-Dec-2020) glblur(6x)
Generated by dwww version 1.14 on Mon Feb 3 11:26:55 CET 2025.