<?xml version="1.0" encoding="ISO-8859-1"?>
-<screensaver name="klein" _label="Klein">
+<screensaver name="klein" _label="Klein" gl="yes">
<command arg="-root"/>
- <hgroup>
- <number id="delay" type="slider" arg="-delay %"
- _label="Frame rate" _low-label="Low" _high-label="High"
- low="0" high="100000" default="10000"
- convert="invert"/>
- <boolean id="showfps" _label="Show frame rate" arg-set="-fps"/>
- </hgroup>
+ <video href="https://www.youtube.com/watch?v=c2gvyGVNG80"/>
<hgroup>
<select id="kleinbottle">
- <option id="random" _label="Random"/>
- <option id="figure-8" _label="Figure 8" arg-set="-klein-bottle figure-8"/>
- <option id="lawson" _label="Lawson" arg-set="-klein-bottle lawson"/>
+ <option id="random" _label="Random shape"/>
+ <option id="figure-8" _label="Figure 8" arg-set="-klein-bottle figure-8"/>
+ <option id="squeezed-torus" _label="Squeezed torus" arg-set="-klein-bottle squeezed-torus"/>
+ <option id="lawson" _label="Lawson" arg-set="-klein-bottle lawson"/>
</select>
<select id="view-mode">
- <option id="walk" _label="Random"/>
+ <option id="walk" _label="Random motion"/>
<option id="walk" _label="Walk" arg-set="-view-mode walk"/>
<option id="turn" _label="Turn" arg-set="-view-mode turn"/>
<option id="walk-turn" _label="Walk and turn" arg-set="-view-mode walk-turn"/>
<hgroup>
<select id="display-mode">
- <option id="random" _label="Random"/>
+ <option id="random" _label="Random surface"/>
<option id="wire" _label="Wireframe mesh" arg-set="-mode wireframe"/>
<option id="surface" _label="Solid surface" arg-set="-mode surface"/>
<option id="transparent" _label="Transparent surface" arg-set="-mode transparent"/>
</select>
<select id="appearance">
- <option id="random" _label="Random"/>
+ <option id="random" _label="Random pattern"/>
<option id="solid" _label="Solid object" arg-set="-appearance solid"/>
<option id="bands" _label="See-through bands" arg-set="-appearance bands"/>
</select>
- </hgroup>
- <hgroup>
<select id="colors">
- <option id="random" _label="Random"/>
+ <option id="random" _label="Random coloration"/>
<option id="twosided" _label="Two-sided" arg-set="-colors two-sided"/>
<option id="rainbow" _label="Rainbow colors" arg-set="-colors rainbow"/>
<option id="depth" _label="4d depth colors" arg-set="-colors depth"/>
</select>
<select id="projection3d">
- <option id="random" _label="Random"/>
+ <option id="random" _label="Random 3D"/>
<option id="perspective-3d" _label="Perspective 3D" arg-set="-projection-3d perspective"/>
<option id="orthographic-3d" _label="Orthographic 3D" arg-set="-projection-3d orthographic"/>
</select>
<select id="projection4d">
- <option id="random" _label="Random"/>
+ <option id="random" _label="Random 4D"/>
<option id="perspective-4d" _label="Perspective 4D" arg-set="-projection-4d perspective"/>
<option id="orthographic-4d" _label="Orthographic 4D" arg-set="-projection-4d orthographic"/>
</select>
_label="WZ rotation speed"
_low-label="-4.0" _high-label="4.0"
low="-4.0" high="4.0" default="1.5"/>
-
- <number id="walk-direction" type="slider" arg="-walk-direction %"
- _label="Walking direction"
- _low-label="-180.0" _high-label="180.0"
- low="-180.0" high="180.0" default="7.0"/>
</vgroup>
<vgroup>
_label="YZ rotation speed"
_low-label="-4.0" _high-label="4.0"
low="-4.0" high="4.0" default="2.1"/>
+ </vgroup>
- <number id="walk-speed" type="slider" arg="-walk-speed %"
- _label="Walking speed"
- _low-label="1.0" _high-label="100.0"
- low="1.0" high="100.0" default="20.0"/>
+ <vgroup>
+ <number id="walk-direction" type="slider" arg="-walk-direction %"
+ _label="Walking direction"
+ _low-label="-180.0" _high-label="180.0"
+ low="-180.0" high="180.0" default="7.0"/>
+
+ <number id="walk-speed" type="slider" arg="-walk-speed %"
+ _label="Walking speed"
+ _low-label="1.0" _high-label="100.0"
+ low="1.0" high="100.0" default="20.0"/>
+
+ <number id="delay" type="slider" arg="-delay %"
+ _label="Frame rate" _low-label="Low" _high-label="High"
+ low="0" high="100000" default="10000"
+ convert="invert"/>
+
+ <boolean id="showfps" _label="Show frame rate" arg-set="-fps"/>
</vgroup>
</hgroup>
+ <xscreensaver-updater />
+
<_description>
-This shows a 4D Klein bottle. You can walk on the Klein bottle or
-rotate it in 4D or walk on it while it rotates in 4D. Inspired by
-Thomas Banchoff's book "Beyond the Third Dimension: Geometry, Computer
-Graphics, and Higher Dimensions", Scientific American Library, 1990.
+A Klein bottle is the 4D analog of a moebius strip.
+
+You can walk on the surface of the bottle or rotate it in 4D or walk
+on it while it rotates in 4D. Inspired by Thomas Banchoff's book
+"Beyond the Third Dimension: Geometry, Computer Graphics, and Higher
+Dimensions", Scientific American Library, 1990.
-http://en.wikipedia.org/wiki/Klein_bottle
+https://en.wikipedia.org/wiki/Klein_bottle
Written by Carsten Steger; 2008.
</_description>