Dataset {
    Float32 X[X = 360];
    Float32 Y[Y = 180];
    Grid {
     ARRAY:
        Float32 albedo[Y = 180][X = 360];
     MAPS:
        Float32 Y[Y = 180];
        Float32 X[X = 360];
    } albedo;
    Grid {
     ARRAY:
        Float32 roughness[Y = 180][X = 360];
     MAPS:
        Float32 Y[Y = 180];
        Float32 X[X = 360];
    } roughness;
} Time_Invariant;