// Last edited on 2019-07-16 00:20:06 by stolfilocal
// Processed by remove-cam-lights

background{ color rgb < 0.75, 0.80, 0.85 > }

#declare tx_plastico =
  texture{
    pigment{ color rgb < 0.10, 0.80, 1.00 > }
    finish{ diffuse 0.8 ambient 0.1 specular 0.5 roughness 0.005 }
  }

#declare tx_fosca =
  texture{
    pigment{ color rgb < 1.00, 0.80, 0.10 > }
    finish{ diffuse 0.9 ambient 0.1 }
  }

#declare tx_espelho =
  texture{
    pigment{ color rgb < 1.00, 0.85, 0.30 > }
    finish{ diffuse 0.2 reflection 0.7*< 1.00, 0.85, 0.30 > ambient 0.1 }
  }

#declare tx_vidro =
  texture{
    pigment{ color rgb < 0.85, 0.95, 1.00 > filter 0.70 }
    finish{ diffuse 0.03 reflection 0.25 ambient 0.02 specular 0.25 roughness 0.005 }
  }

#declare tx_xadrez =
  texture{
    pigment{ checker color rgb < 0.10, 0.32, 0.60 >, color rgb < 1.00, 0.97, 0.90 > }
    finish{ diffuse 0.9 ambient 0.1 }
    scale 2.0
  }

#declare cx = 0;
#declare cz = 0;
#declare cy = 0;

#macro c (P, R)
  #declare cy = sqrt(pow(R, 2) - pow(cx, 2));
  #declare cz = 0;
#end

#macro circulo (R, N)
  #declare centro = <0.0, 0.0, 0.0>;
  #declare nX = N/2;
  #declare d = 2*R/nX;
  #declare cx = -R;
  #while (cx<R)
     c(cx, R)
     object {sphere {<cx, cy, cz>, 20.00 texture{tx_fosca}}}
     object {sphere {<cx, -cy, cz>, 20.00 texture{tx_fosca}}}
     #declare cx = cx + d;
  #end
#end

circulo (300, 1000)

#include "camlight.inc"
#declare centro_cena = < 0.00, 0.00, 1.00 >;
#declare raio_cena = 520;
#declare dir_camera = < 10.00, 10.00, 10.00 >;
#declare dist_camera = 5*raio_cena;
#declare intens_luz = 1.20;
camlight(centro_cena, raio_cena, dir_camera, dist_camera , z, intens_luz)