// 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 < 0.20, 0.40, 0.60 > }

#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_alt = 
  texture{
    pigment{ color rgb < 0.10, 0.40, 0.20 > transmit 0.91 }
    finish{ diffuse 0.8 ambient 0.1 specular 0.5 roughness 0.005 }
  }

#declare tx_alt2 = 
  texture{
    pigment{ color rgb < 0.70, 0.40, 0.50 > transmit 0.81 }
    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_xadrez =
  texture{
    pigment{ checker color rgb < 0.50, 0.32, 0.60 >, color rgb < 1.00, 0.97, 0.90 > }
    finish{ diffuse 0.9 ambient 0.1 }
    scale 3.0
  }

// ======================================================================
// DESCRIÇÃO DA CENA 
#declare raio = 1.500;

// Partes das pernas:
//test
#macro busca_tempo(clk,nq,tk)
  
#end

//#macro interpola1matriz(P,Q,X,c0,c1,cc,R)
//resultado é colocada na matriz A
#macro interpola_quadros(np,na,q,k0,t0,k1,t1,tt,A)
  #local i=0;
  #while(i < np)
    #local k = 0;    
    #while(k < na)
      #declare A[i][k]=interpola_quadros(t0,Q[k0][i][k],t1,Q[k1][i][k],tt);
      #local k = k+1;
    #end
    #local i = i+1;
  #end
#end

#macro parte1()
  #union{
    cylinder {P[0][0], P[0][1], 0.5 texture {tx_plastico} }
    sphere {P[0][2], 0.5 texture {tx_fosca}}
  }
#end

#macro parte2()
  #union{  
    cylinder {P[1][0], P[1][1], 0.5 texture {tx_plastico} }
    sphere {P[1][2], 0.5 texture {tx_fosca}}
  }
#end

#macro parte3()
  #union{  
    object{cylinder {P[2][0], P[2][1], 0.5 texture {tx_plastico} } translate <0,0,0> }
    object{sphere {P[2][2], 0.5 texture {tx_fosca}} translate <0,0,0> }
  }
#end

#macro parte4()
  #union{    
    cylinder {P[3][0], P[3][1], 0.5 translate <0,5,-5>texture {tx_plastico} }
    sphere {P[3][2], 0.5 translate <0,5,-5>texture {tx_fosca}} 
  }
#end

#macro parte5()
  #union{  
    cylinder {P[4][0], P[4][1], 0.5 translate <0,+5,-11>texture {tx_plastico} }
    sphere {P[4][2], 0.5 translate <0,5,-11> texture {tx_fosca}}
  }
#end

#macro base()
  box{<-4,-5,0.5>, <4,5,5.5> texture {tx_plastico}}
#end

//articulaçoes das pernas
#macro articula1()
  union{
    parte1()
  }
#end

#macro articula2(a)
  union{
    object{articula1() rotate <a,0,0> translate <0,4,0>}
    parte2()
  }
#end

#macro articula3(a,b)
  union{
    object{articula2(a) rotate <b,0,0> translate <0,0,-5>}
    parte3()
  }
#end

#macro articula4(a,b,c)
  union{
    object{articula3(a,b) rotate <c,0,0> translate <0,5,0>}
    parte4()
  }
#end

#macro articula5(a,b,c,d)
  union{
    object{articula4(a,b,c) rotate <d,0,0> translate <0,0,-6>}
    parte5()
  }
#end

#macro perna(a,b,c,d,e)
  object{articula5(a,b,c,d) rotate <e,0,0>}
#end

//delimitaçao de cada parte de uma perna {<inicio>,<fim>,<eixo_de_rotaçao>}
#declare P = array[5][3] {
  {<0,-0.5,0>, <0,-2.5, 0>, <0, 0, 0>},
  {<0,0.5,0>, <0, 3.5, 0>, <0, 0, 0>},
  {<0,0,-4.5>, <0, 0,-0.5>, <0, 0, 0>}, 
  {<0,-0.5,5>, <0, -4.5, 5>, <0, -5, 5>},
  {<0,-5,5.5>, <0, -5, 10.5>, <0, -5, 11>}
  };

#macro dragao()
  union {  
    base()
    object{perna(60,20,-30,0,-30) translate<-3.5,-4.5,0>}
    object{perna(60,20,-30,0,-30) translate<3.5,-4.5,0>}
    object{perna(60,20,-30,0,-30) translate<-3.5,0,0>}
    object{perna(60,20,-30,0,-30) translate<3.5,0,0>}
    object{perna(60,20,-30,0,-30) translate<-3.5,4.5,0>}
    object{perna(60,20,-30,0,-30) translate<3.5,4.5,0>}
  }
#end
  
#include "eixos.inc"
// Aqui está a cena, finalmente:

object { eixos(4.00) }
//red axis = x, green axis = y 
// <x,y,z>
dragao()


#include "camlight.inc"
#declare centro_cena = < 0.00, 0.00, 1.00 >;
#declare raio_cena = 40.0;
#declare dir_camera = < 7.00, 8.00, -4.00 >;
#declare dist_camera = 4*raio_cena;
#declare intens_luz = 1.20;
camlight(centro_cena, raio_cena, dir_camera, dist_camera , z, intens_luz)