<?xml version="1.0" encoding="ISO-8859-1"?>

<screensaver name="hyperball" _label="Hyperball">

  <command arg="-root"/>

  <number id="delay" type="slider" arg="-delay %"
          _label="Speed" _low-label="Slow" _high-label="Fast"
          low="0" high="20000" default="20000"
          convert="invert"/>

  <number id="z" type="slider" arg="-observer-z %"
          _label="Zoom" _low-label="Near" _high-label="Far"
          low="1.125" high="10.0" default="3.0"/>

  <hgroup>
    <vgroup>
      <number id="xw" type="slider" arg="-xw %"
              _label="XW Rotation" _low-label="Low" _high-label="High"
              low="0" high="20" value="0"/>
      <number id="xy" type="slider" arg="-xy %"
              _label="XY Rotation" _low-label="Low" _high-label="High"
              low="0" high="20" value="3"/>
      <number id="xz" type="slider" arg="-xz %"
              _label="XZ Rotation" _low-label="Low" _high-label="High"
              low="0" high="20" value="5"/>
    </vgroup>
    <vgroup>
      <number id="yw" type="slider" arg="-yw %"
              _label="YW Rotation" _low-label="Low" _high-label="High"
              low="0" high="20" value="10"/>
      <number id="yz" type="slider" arg="-yz %"
              _label="YZ Rotation" _low-label="Low" _high-label="High"
              low="0" high="20" value="0"/>
      <number id="zw" type="slider" arg="-zw %"
              _label="ZW Rotation" _low-label="Low" _high-label="High"
              low="0" high="20" value="0"/>
    </vgroup>
  </hgroup>

  <_description>
Hyperball is to hypercube as dodecahedron is to cube: this displays
a 2D projection of the sequence of 3D objects which are the projections
of the 4D analog to the dodecahedron.  Technically, it is a "120 cell 
polytope."  Written by Joe Keane.

See also the "polytopes" hack for a more general version of this
using OpenGL.
  </_description>
</screensaver>
