//Brian Vincent
//Paraboloid

//Files with predefined colors and textures
#include "colors.inc"
#include "glass.inc"
#include "golds.inc"
#include "metals.inc"
#include "stones.inc"
#include "woods.inc"

//Place the camera
camera {
   sky <0,0,1>          //Don't change this
   direction <-1,0,0>   //Don't change this
   right <-4/3,0,0>     //Don't change this
   location  <10,0,5>  //Camera location
   look_at   <0,0,0>    //Where camera is pointing
   angle 40      //Angle of the view
}

//Ambient light to "brighten up" darker pictures
global_settings { ambient_light White }
global_settings { max_trace_level 10 }


//Place a light
light_source {
   <-20,10,20>
   color White*2
}


      
plane{<0,0,-1>,7 texture {T_Silver_3A}}

background { color White }


#declare b = 32;
#declare q = array[b];
#declare p = array[b];   
#declare s = array[b];
#declare o = array[b];
#declare r=.02;
#declare d = 2;    
#declare e = 4;
#declare a = 1.5;



#declare i=0;
#declare j=0;
#while(i<b)    
  #declare q[i]=
    < d, -d+j, d-j>;
    #declare p[i]=
    <-d, -d+j, -d+j>;
    
    #declare s[i]=
    < -d+j, d, d-j>;
    #declare o[i]=
    < -d+j, -d, -d+j>;
 #declare cyl1  =  cylinder { q[i], p[i], r texture {T_Gold_1A}};
 #declare cyl2 =  cylinder { s[i], o[i], r texture {T_Silver_1A}}          ;
 
 object{cyl1 rotate<0, 0,10*clock>}
 object{cyl2 rotate<0, 0,10*clock>}
 
 
 
  #declare j=j+2*(d/b);
  #declare i=i+1;                      
  
#end