// STRING / Free Curve String '06.06
// by Tsutomu HIGO  http://www.asahi-net.or.jp/~nj2t-hg/

#version 3.6;
global_settings {
  max_trace_level 5
  assumed_gamma 2.2
  }

camera {
  location <0, -200, -180>
  angle 90
  look_at <15, 0, 0>
  }

light_source { <50, 100, -1000> color rgb <1, 1, 1> }

isosurface {
  function { pow(x-6*cos(pi*pow(y*y,0.5)/5),2)+pow(z-6*sin(pi*pow(y*y,0.5)/5),2)-0.04 }
  contained_by { box { <-6.2, -20, -6.2> <6.2, 20, 6.2> } }
  accuracy 0.01
  max_gradient 500
  rotate y*180
  scale 20
  texture { pigment { color rgbt <0.6, 1, 0.8, 0.6> } }
  finish {
    ambient 0.4
    diffuse 0.3
    reflection 0.8
    specular 0.8
    phong 0.5
    brilliance 1
    }
  no_shadow
  rotate y*40
  }

background { color rgb <0.001, 0.01, 0.05> }