texture{ pigment{ color rgb<0.3,0.6,0>}
                normal { pigment_pattern{
                            average pigment_map{[1, gradient z sine_wave]
                                                [1, gradient y scallop_wave]
                                                [3, bumps  ]}
                                         translate 0.02 scale 1}
                                         5
                         rotate< 0,0,0> scale 0.15 } // end normal
                finish { specular 0.3 reflection{ 0.0 } }
              } // end of texture