git.hungrycats.org Git - xscreensaver/blob - hacks/config/ifs.xml

   1 <?xml version="1.0" encoding="ISO-8859-1"?>
   2
   3 <screensaver name="ifs" _label="IFS">
   4
   5   <command arg="-root"/>
   6
   7   <number id="delay" type="slider" arg="-delay %"
   8     _label="Frame rate" _low-label="Low" _high-label="High"
   9     low="0" high="100000" default="20000"
  10     convert="invert"/>
  11
  12   <number id="functions" type="slider" arg="-functions %"
  13     _label="Number of functions" _low-label="2" _high-label="6"
  14            low="2" high="6" default="3"/>
  15
  16   <number id="detail" type="slider" arg="-detail %"
  17     _label="Detail" _low-label="Low" _high-label="High"
  18     low="4" high="14" default="9"/>
  19
  20 <!--
  21   On a 2.93 gHz iMac i7, I get these rates with -delay 0:
  22
  23     detail 3:  invisible
  24     detail 4:  barely visible
  25     detail 5:  1000+ fps, looks like noise at -delay 0, ok at -delay 20000
  26     detail 8:  ~700+ fps
  27     detail 9:  ~400 fps
  28     detail 10: ~300 fps
  29     detail 11: ~100 fps
  30     detail 12:  ~50 fps
  31     detail 13:  ~17 fps
  32     detail 14:   ~8 fps
  33     detail 15:   ~2 fps
  34
  35   With the default -delay, CPU load only starts causing the frame rate
  36   to drop below 30 fps detail 12 or higher.
  37 -->
  38
  39   <number id="colors" type="slider" arg="-colors %"
  40     _label="Number of colors" _low-label="2" _high-label="Many"
  41     low="2" high="255" default="200" />
  42
  43   <hgroup>
  44    <boolean id="translate" _label="Translate" arg-unset="-no-translate"/>
  45    <boolean id="scale"     _label="Scale"     arg-unset="-no-scale"/>
  46    <boolean id="rotate"    _label="Rotate"    arg-unset="-no-rotate"/>
  47    <boolean id="showfps" _label="Show frame rate" arg-set="-fps"/>
  48   </hgroup>
  49
  50   <_description>
  51
  52 Clouds of iterated function systems spin and collide.
  53
  54 Note that the "Detail" parameter is exponential.  Number of points
  55 drawn is functions^detail.
  56
  57 http://en.wikipedia.org/wiki/Iterated_function_system
  58
  59 Written by Chris Le Sueur and Robby Griffin; 1997.
  60   </_description>
  61 </screensaver>