// Last edited on 2025-01-13 04:48:00 by stolfi

#version 3.7;
background{ color rgb < 0.000, 0.000, 0.000 > }

#macro disk(clr)
  // A disk of radius 
  cylinder{ 
    <0,0,-0.001>, <0,0,+0.001>, 0.03
    texture{ pigment{ color rgb clr } finish{ ambient 1 diffuse 0 } }
  }
#end

object{ disk( <1.000,1.000,0.000>) translate -1.000*x translate -1.000*z }
object{ disk( <1.000,0.500,0.000>) translate -0.500*x translate -0.100*z }
object{ disk( <1.000,0.000,1.000>) translate 00.000*x translate 00.000*z }
object{ disk( <0.000,0.500,1.000>) translate +0.500*x translate +0.100*z }
object{ disk( <0.000,1.000,1.000>) translate +1.000*x translate +1.000*z }

#local cad = 1000; // Camera distance.

// The camera on the Z-axis looking down, with {+Y} at right.
camera{ 
  location cad*z
  right -3.0/cad*x
  up 0.75/cad*y
  look_at <0,0,0> 
  // aperture 0.25*cad
  // focal_point <0,0,0>
  aperture 0.65*cad
  focal_point <0,0,1>
  blur_samples 100
  variance 0.0005
}

light_source{ <1,2,3> }