// Space - Reference Frame
     
#version 3.5;

#include "colors.inc"
#include "math.inc"  
#include "Stereo.inc"

global_settings {
  assumed_gamma 1.0
  max_trace_level 5
}

// ----------------------------------------  

#macro Axis(l1,l2,r1,r2)
  merge {
    cylinder {<-l1,0,0>,<0.001,0,0>,r1}
    cone {<0,0,0>,r2,<l2,0,0>,0}
  }     
#end

// ----------------------------------------  

camera {
  StereoCamera1(vnormalize(<0.5,0.7,-1>)*0.6, <0,0.05,0>, image_width/image_height,1,0.6, 0.065,0)
}

sky_sphere {  
  pigment {
    granite
    turbulence 0.6
    color_map {
      [0.00 rgb 0]
      [0.75 rgb 0]
      [0.80 rgb <0,0,0.05>]
      [0.85 rgb <0,0,0.5>]
      [1.00 rgb <1,1,0.5>]
    }
    scale 0.03
  }
}

light_source {
  <0, 0, 0>            // light's position (translated below)
  color rgb <1, 1, 1>  // light's color
  translate <-30, 30, -30>
  area_light <1,1,-1>, <1,-1,1>, 5,5
  jitter
  adaptive 1
}

// ----------------------------------------

union {
  intersection {
    plane {               // checkered floor
      y, 0
      texture
      {
        pigment {
          checker
          color rgb 1
          color rgb <0.1,0.1,0.6>
          scale 0.05
        }
        finish{
          diffuse 0.8
          ambient 0.1
        }
      }
    }
    cylinder {
      <0,-0.03,0>, <0,0.01,0>, 0.3
      pigment {color red 0.5}
      finish {
        diffuse 0.7
        ambient 0.3
        specular 0
      }
    }
  }
  
  difference {        
    #local a=0.8;
    #local b=1.1;
    box {<-1,-1,-1>, <1,1,1>}
    box {<-b,-a,-a>, <b,a,a>}
    box {<-a,-b,-a>, <a,b,a>}
    box {<-a,-a,-b>, <a,a,b>}
    translate 1.001*y
    texture {
      pigment {color Yellow}
      finish {diffuse 0.7 specular 0.1 phong 0.1 ambient 0.1}
      normal {bumps 0.2 scale 0.02 turbulence 0.4}
    }
    interior {
      ior 1.5
    }
    scale 0.12
  }

  union {  
    object {
      Axis(2,0.3,0.05,0.1)
      translate 0.85*x
      pigment {color red 1}
    }
    object {
      Axis(2,0.3,0.05,0.1)
      translate 0.85*x
      pigment {color green 1}
      rotate -90*y
    }
    object {
      Axis(2,0.3,0.05,0.1)
      translate 0.85*x
      pigment {color blue 1}
      rotate 90*z
    }
    scale 0.2
    translate 0.12*y
  }
}