// MOD / Gush '03.06
// By Tsutomu HIGO  URL: http://www.asahi-net.or.jp/~nj2t-hg/

#version 3.5;
global_settings {
  max_trace_level 3
  assumed_gamma 2.2
  }

camera {
  location <-4, 5, -6>
  look_at <0, -2, 0>
  angle 90
  }

light_source {<80, 75, -90> color rgb <1, 1, 1>}

isosurface {
  function {(pow(mod(x+50+0.03*sin(12*x+15*z)+0.4*sin(0.6*x+0.6*z),1)-0.5,2)
            +pow(mod(z+50+0.03*sin(14*x+13*z)+0.4*sin(0.6*x+0.6*z),1)-0.5,2)
            +pow(y-0.2+1.8*cos(0.4*pow(x*x+z*z,0.5)),2)-0.09)
            *(y+1*cos(0.4*pow(x*x+z*z,0.5)))-0.0009}
  threshold 0
  max_gradient 10
  contained_by {box {<-8, -1.5, -9>, <10, 2.4, 10>}}
  open
  texture {
    pigment {color rgb <1, 1, 1>}
    finish {
      ambient 0.1
      diffuse 0.6
      reflection 0.7
      specular 0.8
      phong 1
      brilliance 1
      }
    }
  no_shadow
  }

background {color rgb <0.4, 0.7, 0.9>}