PerspectiveCamera {
    center 0 0 10
    direction 0 0 -1  
    up 0 1 0
    angle 45
}

Lights {
    numLights 1
    DirectionalLight {
        direction -0.5 -0.5 -1
        color 0.8 0.8 0.8 
    }
}

Background { 
    color 0 0 0 
    ambientLight 0.2 0.2 0.2 
}

Materials {
    numMaterials 3
    Material {
        diffuseColor 1 0 0
    }
    Material {
        diffuseColor 0 1 0
    }
    Material {
        diffuseColor 0 0 1
    }
}

Group {
    numObjects 3
    MaterialIndex 0
    Sphere {
	center 0 0 5
        radius 6
    }
    MaterialIndex 1
    Sphere {
	center 0 0 0
        radius 1
    }
    MaterialIndex 2
    Sphere {
	center 0 0 15
        radius 1
    }
}