// PETAL / Flame Petals '03.12
// By Tsutomu HIGO  URL: http://www.asahi-net.or.jp/~nj2t-hg/

#version 3.5;
global_settings {
  max_trace_level 4
  assumed_gamma 2.2
  }

isosurface {
  function {x*x+z*z-9*sin(6*y*y+0.5*(x*x+z*z))
    *pow(0.3+0.7*abs(sin(6*atan(z/x)+9*y)),100)*sin(pi*y)-0.4}
  threshold 0
  max_gradient 300
  contained_by {box {<-3.2, -7, -3.2>, <3.2, 12, 3.2>}}
  texture {
    pigment {color rgb <1, 0.2, 0>}
    finish {
      ambient 0.1
      diffuse 1
      reflection 0.7
      specular 0.8
      phong 0.5
      brilliance 1
      }
    }
  no_shadow
  scale 3
  rotate z*50 rotate y*-10
  }

background {color rgb <0, 0.05, 0.1>}

camera {
  location <10, 0, 15>
  angle 90
  look_at <3, 1.5, 0>
  }

light_source {<1.0, 15.0, 20> color rgb <0.6, 1, 0.4>}