#declare dir6 = array[6];
#declare dir6[ 0] = < +1.0000000000000000, +0.0000000000000000, +0.0000000000000000 >;
#declare dir6[ 1] = < -1.0000000000000000, -0.0000000000000000, -0.0000000000000000 >;
#declare dir6[ 2] = < +0.0000000000000000, +0.0000000000000000, +1.0000000000000000 >;
#declare dir6[ 3] = < -0.0000000000000000, -0.0000000000000000, -1.0000000000000000 >;
#declare dir6[ 4] = < +0.0000000000000000, +1.0000000000000000, +0.0000000000000000 >;
#declare dir6[ 5] = < -0.0000000000000000, -1.0000000000000000, -0.0000000000000000 >;