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
COPYRIGHT
Copyright © 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
