Provided by: xscreensaver-data-extra_5.08-0ubuntu3_i386
ifs - draws spinning, colliding iterated-function-system images
ifs [-display host:display.screen] [-visual visual] [-window] [-root]
[-no-db] [-delay number] [-detail number] [-colors number] [-functions
number] [-iterate | -recurse] [-no-rotate] [-no-scale] [-no-translate]
The ifs program draws spinning, colliding iterated-function-system
Specify which visual to use. Legal values are the name of a
visual class, or the id number (decimal or hex) of a specific
-window Draw on a newly-created window. This is the default.
-root Draw on the root window.
-no-db Disable double-buffering.
Per-frame delay, in microseconds. Default: 20000
Number of colours to use. Default: 200
In -iterate mode, number of times to randomly iterate the func-
tions, in thousands. In -recurse mode, number of times to
apply functions (recursion depth) before drawing each point.
Number of functions to be iterated. Default: 3
Calculate by iteratively applying the functions in a random
order, usually faster than -recurse. This is the default.
Calculate by recursively applying all combinations of the func-
tions. This is the historical behavior and may produce neater
output than -iterate.
Disable the rotation component of the functions.
Disable the scaling component of the functions.
Disable the varying translation component of the functions.
Turn off multi-coloured mode, only one colour is used to colour
the whole set.
-fps Display the current frame rate and CPU load.
DISPLAY to get the default host and display number.
to get the name of a resource file that overrides the global
resources stored in the RESOURCE_MANAGER property.
X(1), xscreensaver(1), ifs(6)
Copyright (C) Chris Le Sueur and Robby Griffin, 2005-2006
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Soft-
ware"), to deal in the Software without restriction, including without
limitation the rights to use, copy, modify, merge, publish, distribute,
sublicense, and/or sell copies of the Software, and to permit persons
to whom the Software is furnished to do so, subject to the following
The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MER-
CHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
NO EVENT SHALL THE X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR
OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
OTHER DEALINGS IN THE SOFTWARE.
This version by Chris Le Sueur <firstname.lastname@example.org>, Feb 2005 Many
improvements by Robby Griffin <email@example.com>, Mar 2006