// Scene setup
global_settings {
  assumed_gamma 2.2
  ambient_light rgb <1, 1, 1>
}

camera {
  location <0, 2, -5>
  look_at <0, 1, 0>
  angle 45
}

light_source {
  <500, 500, -500>
  color rgb <1, 1, 1>
}

// Sphere
sphere {
  <0, 1, 0>, 1
  finish {
    ambient 0.2
    diffuse 0.6
    specular 0.8
    roughness 0.1
    reflection 0.5
  }
  texture {
    pigment { color rgb <1, 1, 1> }
    finish {
      ambient 0.2
      diffuse 0.6
      specular 0.8
      roughness 0.1
      reflection 0.5
    }
  }
}

// Plane
plane {
  <0, 1, 0>, 0
  texture {
    pigment {
      checker
      color rgb <0.8, 0.8, 0.8>
      color rgb <0.4, 0.4, 0.4>
      scale 2
    }
    finish {
      ambient 0.2
      diffuse 0.6
    }
  }
}

// Sky
sky_sphere {
  pigment {
    gradient y
    color_map {
      [0.0 rgb <0.2, 0.4, 0.8>]
      [0.7 rgb <0.2, 0.4, 0.8>]
      [1.0 rgb <1, 1, 1>]
    }
  }
}