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+<?xml version="1.0" encoding="ISO-8859-1"?>
+
+<screensaver name="crumbler" _label="Crumbler" gl="yes">
+
+ <command arg="-root"/>
+
+ <video href="https://www.youtube.com/watch?v=oERz1IPluYQ"/>
+
+ <hgroup>
+ <vgroup>
+ <number id="delay" type="slider" arg="-delay %"
+ _label="Frame rate" _low-label="Low" _high-label="High"
+ low="0" high="100000" default="30000"
+ convert="invert"/>
+
+ <number id="speed" type="slider" arg="-speed %"
+ _label="Speed" _low-label="Slow" _high-label="Fast"
+ low="0.05" high="2.0" default="1.0"/>
+
+ <number id="density" type="slider" arg="-density %"
+ _label="Polygons" _low-label="Few" _high-label="Many"
+ low="0.2" high="5.0" default="1.0"/>
+
+ <number id="fracture" type="slider" arg="-fracture %"
+ _label="Fractures" _low-label="Few" _high-label="Many"
+ low="0" high="20" default="0"/>
+ </vgroup>
+
+ <vgroup>
+ <boolean id="wander" _label="Wander" arg-unset="-no-wander"/>
+ <boolean id="spin" _label="Spin" arg-unset="-no-spin"/>
+ <boolean id="wire" _label="Wireframe" arg-set="-wireframe"/>
+ <boolean id="showfps" _label="Show frame rate" arg-set="-fps"/>
+
+ <xscreensaver-updater />
+ </vgroup>
+ </hgroup>
+
+ <_description>
+Randomly subdivides a ball into voronoi chunks, then further subdivides
+one of the remaining pieces.
+
+https://en.wikipedia.org/wiki/Voronoi_diagram
+https://en.wikipedia.org/wiki/Convex_hull
+https://en.wikipedia.org/wiki/Quickhull
+
+Written by Jamie Zawinski; 2018.
+ </_description>
+</screensaver>