#declare RainClouds =
sky_sphere {
    pigment {
        gradient y
        pigment_map {
            [0.00 rgb <0.184, 0.184, 0.309> ]
            [0.15 P_Cloud3 scale <0.05, 0.40, 0.05> rotate z*30 ]
            [0.45 P_Cloud3 scale <0.25, 0.15, 0.50> ]
        }
    }
    translate z*65
    scale <0.5, 0.5, 1>
}

sky_sphere { RainClouds }
