#include "colors.inc"  
#include "golds.inc" 
#include "metals.inc" 
#include "woods.inc"  
#include "transforms.inc"  
#include "shapes.inc" 
#include "math.inc"
#include "glass.inc"
#include "stones.inc" 
#include "textures.inc" 


// this declares a complex object but doesn't draw it
#declare aBoxSphere = object
  {  difference           // also try difference (may put box first) and union 
     { 
         box
         {    <-1,-1,-1>  <1,1,1>
              pigment{color Magenta}
         }         
         
         sphere 
         {    <0,0,0> 
               1.2 
               pigment{color Green}
         }
            

     }
  }  


// this draws the above object 
object 
{
        aBoxSphere
        translate <1,0,0>       
        // try rotate <0,30,0> which rotates 30 degrees around y-axis
}



camera 
{
  location  <0.0, 2.0, -5.0>
  look_at   <0.0, 0.0,  0.0>
}
light_source 
{
  <0,2,-5>
  color rgb <1,1,1>
}


// x,y, and z axes
cylinder 
{       <-10, 0, 0>, 
        <10, 0, 0>, 
        0.1 
        pigment {color Red}
}
cylinder 
{       <0, 10, 0>, 
        <0, -10, 0>, 
        0.1 
        pigment {color Blue}
}
cylinder 
{       <0, 0,0>, 
        <0, 0, -10>, 
        0.1 
        texture {T_Grnt0 }
}