{
  "camera": {
    "type": "perspective",
    "focal_length": 3,
    "eye": [0,0,4],
    "up": [0,1,0],
    "look": [0,0,-1],
    "height": 1,
    "width": 1
  },
  "materials": [
    {
      "name": "orange plastic",
      "ka": [1.0, 0.7, 0.2],
      "kd": [1.0, 0.7, 0.2],
      "ks": [0.8,0.8,0.8],
      "km": [0.05,0.05,0.05],
      "phong_exponent": 1000
    },
    {
      "name": "light blue",
      "ka": [0.1, 0.1, 0.2],
      "kd": [0.5, 0.6, 0.8],
      "ks": [0.05,0.05,0.1],
      "km": [0.2,0.2,0.2],
      "phong_exponent": 20
    }
  ],
  "lights":[
    {
      "type": "directional",
      "direction": [0,0,-1],
      "color": [0.85,0.8,0.8]
    },
    {
      "type": "point",
      "position": [-5,10,10],
      "color": [0.8,0.85,0.8]
    }
  ],

  "objects": [
    {
      "type": "sphere",
      "material": "light blue",
      "center": [0,0,0],
      "radius": 0.5
    }
  ]
}