//Brian vincent
//Helicoid Animation

//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  <15,10,10>  //Camera location
   look_at   <0,0,0>    //Where camera is pointing
   angle 35      //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 {
   <15,0,0>
   color White*2
}
light_source {
   <0,15,0>
   color White*2
}

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

//Set a background color
background { color White }

//Create the array to collect the projected points
#declare b = 128;
#declare q = array[b];
#declare p = array[b];   
#declare s = array[b];
#declare o = array[b];
#declare r=.07;
#declare d = 3; 
#declare a = 2.5;

//Project the points
#declare i=0;
#declare j=0; 
#declare k=0;

#while(i<clock)    
  #declare q[i]=
    < a*cos(j), a*sin(j), d-k>;
  #declare p[i]=
    < 0,0,d-k>;
  
 cylinder { q[i], p[i], r texture {T_Gold_1A}}          
                                
                                
  #declare s[i]=
    < -a*cos(j), -a*sin(j), d-k>;
  #declare o[i]=
    < 0,0,d-k>;
  
 cylinder { s[i], o[i], r texture {T_Copper_1A }}    
                                 
  #declare j=j+4*(2*pi)/b;     
  #declare k=k+2*(d/b);
  #declare i=i+1;                      
  
#end