--- /dev/null
+<?xml version="1.0" encoding="ISO-8859-1"?>
+
+<screensaver name="hypertorus" _label="4D Hypertorus">
+
+ <command arg="-root"/>
+
+ <select id="display-mode">
+ <option id="mesh" _label="Wireframe Mesh"
+ arg-set="-mesh"/>
+ <option id="surface" _label="Solid Surface"
+ arg-set="-surface"/>
+ <option id="transparent" _label="Transparent Surface"
+ arg-set="-transparent"/>
+ </select>
+
+ <select id="appearance">
+ <option id="solid" _label="Solid Object"
+ arg-set="-solid"/>
+ <option id="bands" _label="See-Through Bands"
+ arg-set="-bands"/>
+ </select>
+
+ <select id="colors">
+ <option id="twosided" _label="Two-Sided"
+ arg-set="-twosided"/>
+ <option id="colorwheel" _label="Color Wheel"
+ arg-set="-colorwheel"/>
+ </select>
+
+ <select id="projection3d">
+ <option id="perspective-3d" _label="Perspective 3d"
+ arg-set="-perspective-3d"/>
+ <option id="orthographic-3d" _label="Orthographic 3d"
+ arg-set="-orthographic-3d"/>
+ </select>
+
+ <select id="projection4d">
+ <option id="perspective-4d" _label="Perspective 4d"
+ arg-set="-perspective-4d"/>
+ <option id="orthographic-4d" _label="Orthographic 4d"
+ arg-set="-orthographic-4d"/>
+ </select>
+
+ <hgroup>
+
+ <vgroup>
+
+ <number id="speed-wx" type="slider" arg="-speed-wx %"
+ _label="WX Rotation Speed"
+ _low-label="-4.0" _high-label="4.0"
+ low="-4.0" high="4.0" default="1.1"/>
+
+ <number id="speed-wy" type="slider" arg="-speed-wy %"
+ _label="WY Rotation Speed"
+ _low-label="-4.0" _high-label="4.0"
+ low="-4.0" high="4.0" default="1.3"/>
+
+ <number id="speed-wz" type="slider" arg="-speed-wz %"
+ _label="WZ Rotation Speed"
+ _low-label="-4.0" _high-label="4.0"
+ low="-4.0" high="4.0" default="1.5"/>
+
+ </vgroup>
+
+ <vgroup>
+
+ <number id="speed-xy" type="slider" arg="-speed-xy %"
+ _label="XY Rotation Speed"
+ _low-label="-4.0" _high-label="4.0"
+ low="-4.0" high="4.0" default="1.7"/>
+
+ <number id="speed-xz" type="slider" arg="-speed-xz %"
+ _label="XZ Rotation Speed"
+ _low-label="-4.0" _high-label="4.0"
+ low="-4.0" high="4.0" default="1.9"/>
+
+ <number id="speed-yz" type="slider" arg="-speed-yz %"
+ _label="YZ Rotation Speed"
+ _low-label="-4.0" _high-label="4.0"
+ low="-4.0" high="4.0" default="2.1"/>
+
+ </vgroup>
+
+ </hgroup>
+
+ <number id="speed" type="slider" arg="-delay %"
+ _label="Display Speed" _low-label="Slow" _high-label="Fast"
+ low="0" high="40000" default="25000"
+ convert="invert"/>
+
+ <boolean id="showfps" _label="Show Frames-per-Second" arg-set="-fps"/>
+
+ <_description>
+This program shows a rotating Clifford Torus: a torus lying on the
+"surface" of a 4D hypersphere. Written by Carsten Steger, inspired by
+Thomas Banchoff's book "Beyond the Third Dimension: Geometry, Computer
+Graphics, and Higher Dimensions", Scientific American Library, 1990.
+ </_description>
+</screensaver>