// creates a colorize lens around the camera to give fire aspect to scene

sphere
{
   0, 0.01
   pigment
   {
      color.7+x+y/2
      transmit -.3
   }
   
   finish { ambient 1}
}

// primitives in scene, a sphere and a plane
// the camera situes between both objects
// and reflects ambient light of sphere in the plane
// thanks to a high reflection value
// the granulate texture and fire effect is a mere
// granite pigment with some distort efects

union
{
   sphere { z-1, 4 }
   plane { z, 1 }
   pigment { granite }
   finish
   {
      reflection { 1+y/9, 20 }
   }
}