substrate - Grow crystal-like lines on a computational substrate
] [-background color
] [-wireframe] [-max-cycles
] [-growth-delay delayms
] [-max-cracks nummax
] [-sand-grains numgrains
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
accepts the following options:
- -wireframe (Default: False)
- Don't draw sand-painting colored effects, only make a
- -max-cycles cyclecount (Default:
- Maximum number of growth cycles before restarting. The
higher this is, the more complex the art.
- -growth-delay delayms (Default:
- Delay in ms between growth cycles. More delay, slower (but
smoother and less CPU intensive) art.
- -initial-cracks numinitial (Default:
- Initial number of cracks in the substrate
- -max-cracks nummax (Default: 100)
- Maximum number of cracks in the substrate at a single
- -sand-grains numgrains (Default:
- Number of sand grains dropped during coloring. More grains
cause a denser colour but use more cpu power.
- -circle-percent circlepercent (Default:
- The percentage of the cracks will be circular.
- Display the current frame rate and CPU load.
- 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.
Copyright © 2003 by J. Tarbell (email@example.com,
Ported to XScreensaver 2004 by Mike Kershaw (firstname.lastname@example.org)
J. Tarbell <email@example.com>, Jun-03
Mike Kershaw <firstname.lastname@example.org>, Oct-04