#include "colors.inc"
  camera {
    location <0, .1, -30>
    look_at <0, 0, 0>
    angle 40
  }
  background { color Gray25 }  //to make the patch easier to see
  light_source { <300, 300, -300> White }
  plane { y, -12
    texture {
      pigment {
           color rgb <1, 0, 0>
     
      }
    }
  }

#declare a =
  cylinder {
    <0, 6, 0>,     // Center of one end
    <0, -1, 0>,     // Center of other end
    3            // Radius
    pigment { color rgb <1,0,0> }
  }

#declare b =
 plane { <0, 1, 0>, -1
    pigment {
      checker color Black, color White
    }
  }




#declare porta =
  cylinder {
    <0, -1, 3>,     // Center of one end
    <0, -1, -3>,     // Center of other end
    1.0           // Radius
    pigment { color rgb <1,1,1> }
  }

#declare j = 1;
#declare g = seed(pi);


difference{

		union{
			object{a}
			object{b}
			object{porta}
		}
	
		union { 
			#while (j<6)
			#if (rand(g)<0.75) 
			#declare i = 1;
			#while (i<4)
				#if (rand(g)<0.75)
		  		cylinder {
    				<-2.0 + i, 0.25 + j, 3>,     // Center of one end
    				<-2.0 + i, 0.25 + j, -3>,     // Center of other end
    				0.30           // Radius
    				pigment { color rgb <1,1,1> }
  				}
				#end
			#declare i = i + 1;
			#end
			#end
		#declare j = j + 1;
		#end

	
	
	} 


		union { 
			#while (j<6)
			#if (rand(g)<0.75) 
			#declare i = 1;
			#while (i<4)
				#if (rand(g)<0.75)
		  		cylinder {
    				<-2.0 + i, 0.25 + j, 3>,     // Center of one end
    				<-2.0 + i, 0.25 + j, -3>,     // Center of other end
    				0.30           // Radius
    				pigment { color rgb <1,1,1> }
  				rotate 90*z
				}
				#end
			#declare i = i + 1;
			#end
			#end
		#declare j = j + 1;
		#end

	
	
	} 
	
}