1 <?xml version="1.0" encoding="ISO-8859-1"?>
3 <screensaver name="substrate" _label="Substrate">
7 <video href="https://www.youtube.com/watch?v=dCCVgBOVD0E"/>
11 <number id="speed" type="slider" arg="-growth-delay %"
12 _label="Frame rate" _low-label="Low" _high-label="High"
13 low="0" high="100000" default="18000" convert="invert"/>
15 <number id="maxcyc" type="slider" arg="-max-cycles %"
16 _label="Duration" _low-label="Short" _high-label="Long"
17 low="2000" high="25000" default="10000" />
19 <number id="sandg" type="slider" arg="-sand-grains %"
20 _label="Sand grains" _low-label="Few" _high-label="Lots"
21 low="16" high="128" default="64" />
23 <number id="curve" type="slider" arg="-circle-percent %"
24 _label="Circle percentage" _low-label="0%" _high-label="100%"
25 low="0" high="100" default="33" />
28 <number id="init" type="spinbutton" arg="-initial-cracks %"
29 _label="Initial cracks" low="3" high="15" default="3"/>
31 <boolean id="wire" _label="Wireframe only" arg-set="-wireframe" />
33 <boolean id="seamless" _label="Seamless mode" arg-set="-seamless" />
35 <boolean id="showfps" _label="Show frame rate" arg-set="-fps"/>
39 <xscreensaver-updater />
42 Crystalline lines grow on a computational substrate. A simple
43 perpendicular growth rule creates intricate city-like structures.
45 Written by J. Tarbell and Mike Kershaw; 2004.