Background {

    skyColor [

        0.0 0.2 0.7,

        0.0 0.5 1.0,

        1.0 1.0 1.0

    ]

    skyAngle [ 1.309, 1.571 ]

    groundColor [

        0.1 0.10 0.0,

        0.4 0.25 0.2,

        0.6 0.60 0.6,

    ]

    groundAngle [ 1.309, 1.571 ]

    frontUrl "mountns.png"

    backUrl  "mountns.png"

    leftUrl  "mountns.png"

    rightUrl "mountns.png"

    # no top or bottom images

}