sourCEntral - mobile manpages

pdf

substrate

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. Optionally, 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 © 2003 by J. Tarbell (complex AT complexification DOT net, http://www.complexification.net).

Ported to XScreensaver 2004 by Mike Kershaw (dragorn AT kismetwireless DOT net)

AUTHOR

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

Mike Kershaw <dragorn AT kismetwireless DOT net>, Oct-04

pdf