// Exemplo de arquivo de descricao de cena para POV-ray
// Last edited on 2010-03-04 15:44:01 by stolfi

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

#include "textures.inc"
#include "eixos.inc"
#include "colors.inc"
#include "retalho.inc"

background{ color White }

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

// Partes da cena:
#declare chassi = 
union{
  object{box{<0,0,0>, <4,7,2>} pigment {color Red} }
  object{box{<0,2,2>, <4,7,3.5>} pigment {color Green}}
}

#macro interpole(ta, va, tb, vb, tt)
  #local s = (tt-ta)/(tb-ta);
  ((1-s)*va+s*vb)
#end



#macro lataria()
  
  #local A01 = <3,0,0.75>;
  #local A02 = <3,0,3>;
  #local A00 = <0,0,0.75>;
  #local A03 = <0,0,3>;
  
  #local A11 = <3,2,0.25>;
  #local A12 = <3,2,3.75>;
  #local A10 = <0,2,0.25>;
  #local A13 = <0,2,3.75>;
  
  #local A21 = <3,4,0>;
  #local A22 = <3,4,6>;
  #local A20 = <0,4,0>;
  #local A23 = <0,4,6>;
    
  // segundo retalho
  #local B11 = <3,8,0>;
  #local B12 = <3,8,6.5>;
  #local B10 = <0,8,0>;
  #local B13 = <0,8,6.5>;
   
  #local B21 = <3,10,0.25>;
  #local B22 = <3,10,5.4>;
  #local B20 = <0,10,0.25>;
  #local B23 = <0,10,5.4>;
  
  //terceiro retalho 
  #local C11 = <3,14,0.25>;
  #local C12 = <3,14,0>;
  #local C10 = <0,14,0.25>;
  #local C13 = <0,14,4>;
  
  #local C21 = <3,15,0>;
  #local C22 = <3,15,5.4>;
  #local C20 = <0,15,0>;
  #local C23 = <0,15,5.4>;
  
  #local C31 = <3,16,0>;
  #local C32 = <3,16,5.4>;
  #local C30 = <0,16,0>;
  #local C33 = <0,16,5.4>;
  
  // pontos dos meios
  #local AB0 = (A20+B10)/2;
  #local AB1 = (A21+B11)/2;
  #local AB2 = (A22+B12)/2;
  #local AB3 = (A23+B13)/2;
  #local BC0 = (B20+C10)/2;
  #local BC1 = (B21+C11)/2;
  #local BC2 = (B22+C12)/2;
  #local BC3 = (B23+C13)/2;
  
  //pontas
  #local P0 = <3,0,0.75>;
  #local P1 = <3,0,3>;
  #local P2 = <0,0,0.75>;
  #local P3 = <0,0,3>;
  
  #local rg = 0.01;

  union{
    object{
      retalho(
	A00,A01,A02,A03,
	A10,A11,A12,A13,
	A20,A21,A22,A23,
	AB0,AB1,AB2,AB3,
	rg,
	pigment{color Blue}, pigment{ color Red }
      )
    }
    //retalho 2
    object{
      retalho(
	AB0,AB1,AB2,AB3,
	B10,B11,B12,B13,
	B20,B21,B22,B23,
	BC0,BC1,BC2,BC3,
	rg,
	pigment{color Blue}, pigment{ color Green }
      )
    }
     //retalho 2
    object{
      retalho(
	BC0,BC1,BC2,BC3,
	C10,C11,C12,C13,
	C20,C21,C22,C23,
	C30,C31,C32,C33,
	rg,
	pigment{color Blue}, pigment{ color Blue }
      )
    }
  }  
#end
  
// Aqui está a cena, finalmente:
// parametros gerais

#declare asa =
  object{
    box { <0,0,0>, <5,5,0.7> }
    translate <2.5,5,3>
    pigment{ color Gray }
  }

union{    
  eixos(10)
  union{
    object{
      lataria()
    }
    object{
      asa
    }
  }
  union{
    object{
      lataria()
    }
    object{
      asa
    }
    scale <-1,1,1>
  }
}

#include "camlight.inc"
#declare centro_cena = < 0.00, 6.00, 0.00 >;
#declare raio_cena = 30.0;
#declare dir_camera = < 5, -3, 2 >;
#declare dist_camera = 30.0;
#declare intens_luz = 1.00;
camlight(centro_cena, raio_cena, dir_camera, dist_camera , z, intens_luz)