// Fabio Negrello - exercicio 04
// ultima modificacao 26/10/00

background{ color rgb < 1, 1, 1 > }


light_source {
  < 0.00, 2.00, -20.00 >
  color rgb < 1.00, 1.00, 1.00 >
} 

camera {
  location  < 0.00, 2.00, -20.00 >
  look_at   < 0.00, 2.00, 0.00 >
} 

#declare vision =
  text { ttf "arial.ttf" "VISION" 1, 0
  texture { pigment { color rgb < 0.00, 0.00, 1 > }  }
  translate <-2, 0, 0>
 }

#declare software =
  text { ttf "arial.ttf" "SOFTWARE" 1, 0
  texture { pigment { color rgb < 0.00, 0.00, 1 > }  }
  translate <-3, -1, 0>
 }

#declare olho =
  sphere {
    < 0, 3.5, 0>, 2.00   
    texture { pigment { color rgb < 1.00, 1.00, 1.00 > }  }

  }

#declare cor =
  sphere {
    < 0, 3.5, 0>, 2.00   
    texture { pigment { color rgb < 0.00, 1.00, 0.00 > }  }
    translate<0,0,-3.3>
  }

#declare iris =
  sphere {
    < 0, 3.5, 0>, 0.5   
    texture { pigment { color rgb < 0.00, 0.00, 0.00 > }  }
    translate<0,0,-1>
  }

union{
object{vision}
object{software}
translate <0,0,-10*clock>
}

difference {
object{olho}
object{cor}
object{iris}
rotate <0,180+180*clock,0>
translate <0,sin(clock*180)*3+2,-10*clock>
}