// Last edited on 2003-03-19 17:36:38 by stolfi

#include "colors.inc"
  background{White}
  camera {
    angle 15
    location <10,5,-20>
    look_at <0,0,0>
  }
  light_source { <10, 20, -10> color White }
  light_source { <-7, 20, 5> color 0.5*White }

#declare tinta_A = 
  texture {
    pigment { color rgb < 1.00, 0.00, 0.00 > }
    finish { diffuse 0.5 specular 0.5 roughness 0.005 ambient 0.1 }
  }

#declare corrente =
  blob {
    threshold .65
    sphere { <0,-.8,-.95>, .8, 1 pigment {Blue} }
    sphere { <0,-.5,0>, .8, 1 pigment {Yellow} }
    sphere { <0,.5,0>, .8, 1 pigment {Blue} }
    sphere { <0,.8,-.95>, .8, 1 pigment {Yellow} }
    sphere { <0,0,-1.47>, .8, 1 pigment {Yellow} }
    finish { phong 1 }
  }

#declare cilindro = 
  cylinder {
    < -2.00, 0.00, -.735 >,
    < +2.00, 0.00, -.735 >,
    0.2
    texture { tinta_A }
  }

#declare bola1 =
  sphere {
    < -2.00, 0.00, -.735 >, .5 
    texture { tinta_A }
  }

#declare bola2 =
  sphere {
    < 2.00, 0.00, -.735 >, .5 
    texture { tinta_A }
  }

union {
  object { cilindro }
  object { corrente }
  object { bola1 }
  object { bola2 }
}