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substrate(6x) [debian man page]

substrate(6x)							XScreenSaver manual						     substrate(6x)

NAME

       substrate - Grow crystal-like lines on a computational substrate

SYNOPSIS

       substrate  [-display  host:display.screen]  [-foreground  color]  [-background  color] [-wireframe] [-max-cycles cyclecount] [-growth-delay
       delayms] [-initial-cracks numinitial] [-max-cracks nummax] [-sand-grains numgrains] [-circle-percent circlepercent] [-fps]

DESCRIPTION

       Lines like crystals grow on a computational substrate.  A simple perpendicular growth rule creates intricate city-like structures.  Option-
       ally, cracks may also be circular, producing a cityscape more familiar to places for which city planning is a distant, theoretical concern.

       Ported from the code by j.tarbell at http://complexification.net

OPTIONS

       substrate accepts the following options:

       -wireframe (Default: False)
	       Don't draw sand-painting colored effects, only make a wireframe.

       -max-cycles cyclecount (Default: 10000)
	       Maximum number of growth cycles before restarting.  The higher this is, the more complex the art.

       -growth-delay delayms (Default: 18000)
	       Delay in ms between growth cycles.  More delay, slower (but smoother and less CPU intensive) art.

       -initial-cracks numinitial (Default: 3)
	       Initial number of cracks in the substrate

       -max-cracks nummax (Default: 100)
	       Maximum number of cracks in the substrate at a single time

       -sand-grains numgrains (Default: 64)
	       Number of sand grains dropped during coloring.  More grains cause a denser colour but use more cpu power.

       -circle-percent circlepercent (Default: 0)
	       The percentage of the cracks will be circular.

       -fps    Display the current frame rate and CPU load.

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) 2003 by J. Tarbell (complex@complexification.net, http://www.complexification.net).

       Ported to XScreensaver 2004 by Mike Kershaw (dragorn@kismetwireless.net)

AUTHOR

       J. Tarbell <complex@complexification.net>, Jun-03

       Mike Kershaw <dragorn@kismetwireless.net>, Oct-04

X Version 11							5.15 (28-Sep-2011)						     substrate(6x)

Check Out this Related Man Page

metaballs(6x)							XScreenSaver manual						     metaballs(6x)

NAME

       MetaBalls - draws 2D metaballs

SYNOPSIS

       MetaBalls [-display host:display.screen] [-visual visual] [-window] [-root] [-ncolors number] [-count number] [-delay number] [-cycles num-
       ber] [-radius number] [-delta number] [-fps]

DESCRIPTION

       This hack draws 2D metaballs to the screen by calculating the sum of the colors of all metaballs covering a pixel.  Ported  from  the  demo
       effects collection (http://demo-effects.sourceforge.net)

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.

       -ncolors number
	       Number of Colors.  Default: 256.

       -count number
	       Number of MetaBalls.	2 - 255.  Default: 10.

       -delay number
	       Per-frame delay, in microseconds.  Default: 5000 (0.005 seconds.).

       -cycles number
	       Duration.  100 - 3000.  Default: 1000.

       -radius number
	       MetaBall Radius.  2 - 100.  Default: 100.

       -delta number
	       MetaBall Movement.  1 - 20.  Default: 3.

       -fps    Display the current frame rate and CPU load.

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) 2002-2003 by W.P. van Paassen.  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 soft-
       ware for any purpose.  It is provided "as is" without express or implied warranty.

AUTHOR

       W.P. van Paassen

X Version 11							5.15 (28-Sep-2011)						     metaballs(6x)
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