        texture{ pigment{ color rgb<0.8,0.65,0.4>*0.8 }
                 normal { pigment_pattern{radial frequency 5 sine_wave
                                         color_map {[0.0, rgb 0]
                                                    [0.1, rgb 1]
                                                    [0.9, rgb 1]
                                                    [1.0, rgb 0]}
                                         rotate<90,0,0> scale 0.5} 1 }
                  finish { phong 1 phong_size 100  reflection{0.01} }
                } // end of texture ------------------------------------
