This is a fractal-based landscape animation.  The fractal and the
  bridge were generated by my software, and the animation path was
  controlled by an openlook program of mine.  Software credits:
  
  rayshade 4.0              Craig Kolb
  mpeg_encode 1.2           Berkeley Plateau Research Group
  post 2.0                  jstevens
  Utah Raster ToolKit 3.1a
  
  Author: Jim Grimes  <jimg@bongo.jpl.nasa.gov>