substrate(6) XScreenSaver manual substrate(6) NAME substrate - Grow crystal-like lines on a computational substrate SYNOPSIS substrate [--display host:display.screen] [--visual visual] [--window] [--root] [--window-id number] [--foreground color] [--background color] [--wireframe] [--max-cycles cyclecount] [--growth-delay delayms] [--ini- tial-cracks numinitial] [--max-cracks nummax] [--sand-grains numgrains] [--circle-percent circlepercent] [--fps] DESCRIPTION Lines like crystals grow on a computational substrate. A simple perpendic- ular 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. 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. --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. --window-id number Draw on the specified window. ENVIRONMENT DISPLAY to get the default host and display number. XENVIRONMENT to get the name of a resource file that overrides the global re- sources stored in the RESOURCE_MANAGER property. XSCREENSAVER_WINDOW The window ID to use with --root. SEE ALSO X(1), xscreensaver(1) COPYRIGHT Copyright (C) 2003 by J. Tarbell <complex@complexification.net>. XScreenSaver port: Mike Kershaw <dragorn@kismetwireless.net> AUTHOR J. Tarbell <complex@complexification.net>, Jun 2003. Mike Kershaw <dragorn@kismetwireless.net>, Oct 2004. X Version 11 6.15 (30-Mar-2026) substrate(6)
NAME | SYNOPSIS | DESCRIPTION | OPTIONS | ENVIRONMENT | SEE ALSO | COPYRIGHT | AUTHOR
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