// Exemplo de arquivo de descricao de cena para POV-ray
// Last edited on 2017-05-07 20:10:09 by stolfilocal

// ======================================================================
// CORES E TEXTURAS

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
  }

// ======================================================================
// DESCRIÇÃO DA CENA 

#declare raio = 2.000;


// Macro de interpolacao cubica

#macro interpolar(t0, v0, t1, v1, tt)
#local r = (tt - t0)/(t1 - t0);
#local s = 1 - r;
#local vv = s*v0 + r*v1;
vv
#end

#macro arcobezier(t0, t1, A, B, C, D, tt)
#local AB = interpolar(t0, A, t1, B, tt);
#local BC = interpolar(t0, B, t1, C, tt);
#local CD = interpolar(t0, C, t1, D, tt);

#local ABC = interpolar(t0, AB, t1, BC, tt);
#local BCD = interpolar(t0, BC, t1, CD, tt);
#local ABCD = interpolar(t0, ABC, t1, BCD, tt);
ABCD
#end



union{
 #local i = 0;     // start
 #local i2 = 20; // end
 
 #while (i< i2)
    
    sphere{ <0,0,0>,0.25
    texture{ pigment{color rgb<1,0.65,0.0>} }
    translate<1,0.25,0>
    
    rotate interpolar(0.25,<10,20,30> , 0.33,<40,50,60> , i * 360/i2)}

 #local i = i + 1;   
 #end 


}


 

#declare chao = 
  box{ <-20,-20,-1>, <+20,+20,0> }
  
#include "eixos.inc"

union{
  object{ eixos(3.00) }

  object{ chao  translate < 0,0,-5 > texture{ tx_xadrez } }
}

#include "camlight.inc"

#declare centro_cena = < 0.00, 0.00, 1.00 >;
#declare raio_cena = 6.0;
#declare dir_camera = < 14.00, 7.00, 4.00 >;
#declare dist_camera = 5*raio_cena;
#declare intens_luz = 1.20;
camlight(centro_cena, raio_cena, dir_camera, dist_camera , z, intens_luz)