#include "colors.inc"   

camera {
  location  <0.0, 1.0, -10.0>
  look_at   <0, 1.0,  0.0>
} 

light_source{ <10,100,-100> White }  
light_source{ <0,100,-100> White }


#macro makesphere(scolor, sradius, xposition)
   sphere {
   <xposition, sradius, 0> // center of sphere <X Y Z>
   sradius       // radius of sphere
   pigment { scolor } 
}  
#end 

#declare cnt = 1;
#while(cnt < 10 ) 
   #declare my_color = rgb <1-.1*cnt,0,.1*cnt>;
   #declare my_radius = .1*cnt;
   #declare my_xposition = cnt-5;
   makesphere(my_color, my_radius, my_xposition)
   #declare cnt = cnt + 1; 
#end                     
                         
plane {
  y, // <X Y Z> unit surface normal, vector points "away from surface"
  0.0 // distance from the origin in the direction of the surface normal   
  texture {
        pigment { color rgb < .5,.5,1> }
  }
}