#include "colors.inc"
background {White}
camera{
    location <0, 0, -10>
    look_at <0, 0, 0>
}

light_source{ <10,10,-10> White }  
light_source{ <-10,10,-10> White }

#declare dist = 0;  
#while (dist < 5) 
 union {  
  sphere { <-5, 3, 0>, 1 pigment {rgbt<1,0,0,.8>} }
  sphere { <-5, 1.5+.1*dist, 0>, 1 pigment {rgbt<0,0,1,.8>} }    
  blob {
    threshold .5
    sphere { <-5, 3, 0>, 1, 1 pigment {Red} }
    sphere { <-5, 1.5+.1*dist, 0>, 1, 1 pigment {Blue} }     
    } 
  translate < 2.5*dist,0,0>    
 }
 #declare dist = dist + 1; 
#end  

#declare dist = 0;  
#while (dist < 5) 
 union {  
  sphere { <-5, -1, 0>, 1 pigment {rgbt<1,0,0,.8>} }
  sphere { <-5, -2.5+.1*dist, 0>, 1 pigment {rgbt<0,0,1,.8>} }    
  blob {
    threshold .8
    sphere { <-5, -1, 0>, 1, 1 pigment {Red} }
    sphere { <-5, -2.5+.1*dist, 0>, 1, 1 pigment {Blue} }     
    } 
  translate < 2.5*dist,0,0>    
 }
 #declare dist = dist + 1; 
#end