# a column with a "shelf" through it, supported by a sphere, with a transparent
# sphere sitting on the shelf.  or something.
scene (400  x 400 x 255 ) {
  viewpoint:	(200 200 1000)
  lightsource {
    at:		(300 -1000 2500)
    intensity:	1.0
  }
  environment {
    rgb:        (0.0 0.0 0.0)
    shadow:     0.4
  }
  plane {
    at:  (0 1 0 -300)
    ppm:          "plank.ppm"
    ka:           0.4
    ks:           0.3
    kd:           0.6
  }
  polygon {
    vertices: ((20 200 200) (300 200 200) (300 190 50) (20 190 50))
    ka: 0.4
    kd: 0.8
    ppm: "ash.ppm"
  }
  sphere {
    at: (220 150 125)
    radius: 50
    ka: 0.1
    kd: 0.1
    ks: 0.4
    it: 1.2
    kt: 0.6
    rgb: (0.3 0.0 0.0)
  }
  sphere {
    at: (250 250 125)
    radius: 50
    ka: 0.4
    kd: 0.6
    ks: 0.2
    banded: (16.0, (0.0 0.2 0.1) (0.6 0.4 0.5))
  }
  quadric {
    a: 1.0
    d: -100.0
    h: 1.0
    i: -100.0
    j: 17500.0
    ka: 0.3
    kd: 0.3
    ks: 0.5
    bumpy {
      base {
        marble: (16.0, 3.0)
      }
      ridge: [x]
      multiplier: -5.0
      divisor: 4.0
    }
  }
}