// Exemplo de arquivo de descricao de cena para POV-ray
// Last edited on 2023-09-13 16:42:37 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
  }

// ======================================================================
// DESCRI��O DA CENA 

#declare raio = 2.000;

// Partes da cena:
  
#declare bolinha = 
  sphere{ < 0,0,0 >, 0.60 }
 
#declare bolota = 
  sphere{ < 0,0,0 >, 1.50 }
 
#declare bola =
  sphere{
    < 0.00, 0.00, 0.00 >, raio 
    texture{ tx_plastico }
  }
  
#declare pino = 
  cylinder{
    < -2.00, +2.00, -1.00 >,
    < +2.00, -2.00, +1.00 >,
    0.75
    texture{ tx_fosca }
  }
  
#declare furo = 
  cylinder{
    < -1.00, -2.00, -2.00 >,
    < +1.00, +2.00, +2.00 >,
    0.75*raio
    texture{ tx_fosca }
  }

#declare chao = 
  box{ <-20,-20,-1>, <+20,+20,0> }

#include "eixos.inc"

#declare chair_radius = 4.0;
#declare chair_height = 2.0;
#declare back_height = 8.0;
#declare arm_rest_size = 5.0;
#declare arm_thickness = 1;
// test

#declare chair_base = 
  difference {
    sphere {
      < 0, 0, 0 >, chair_radius
      texture { tx_fosca }
    }
    box { // low cut
      < -chair_radius, -chair_radius, -chair_height >, < chair_radius, chair_radius, chair_height >
      translate < 0, 0, -chair_radius>
      texture { tx_fosca }
    }
    box { // high cut
      < -chair_radius, -chair_radius, -chair_radius >, < chair_radius, chair_radius, chair_radius >
      translate < 0, 0, chair_radius>
      texture { tx_fosca }
    }
    texture { tx_fosca }
  }

#declare trail = 
  cone {
    <0, 0, 0>, back_height / 2 // <x, y, z>, center & radius of one end
    <0, -10, 0>, 0 // <x, y, z>, center & radius of the other end
    texture { tx_fosca }
  }

#declare chair_rest =
  difference {
    // union {
      intersection {
        cylinder {
          < 0, 0, 0>, <0, chair_radius, 0>, back_height / 2
          texture { tx_fosca }
        }
        cylinder {
          < 0, 0, 0>, <0, chair_radius, 0>, back_height / 2
          translate < 0, -1, 0 >
          texture { tx_fosca }
        }
        texture { tx_fosca }
      }
      // sphere {
      //   < 0, 0, 0 >, back_height / 2
      //   texture { tx_fosca }
      // }
      // difference {}
      // trail
    //   texture { tx_fosca }
    // }
    cylinder {
      < 0, chair_radius, -10>, <0, chair_radius, 10>, chair_radius
      texture { tx_fosca }
    }
    texture { tx_fosca }
  }

#declare chair_rest2 =
  difference {
    union {
      intersection {
        // cylinder {
        //   < 0, 0, 0>, <0, chair_radius, 0>, back_height / 2
        //   texture { tx_fosca }
        // }
        box {
          < -back_height / 2, -back_height / 2, -back_height / 2>, <back_height / 2, back_height / 2, back_height / 2>
          texture { tx_fosca }
        }
        cylinder {
          < 0, 0, 0>, <0, chair_radius, 0>, back_height / 2
          translate < 0, -1, 0 >
          texture { tx_fosca }
        }
      }
      // sphere {
      //   < 0, 0, 0 >, back_height / 2
      //   texture { tx_fosca }
      // }
      // difference {}
      trail
      texture { tx_fosca }
    }
    cylinder {
      < 0, chair_radius, -10>, <0, chair_radius, 10>, chair_radius
      texture { tx_fosca }
    }
  }

#declare arm_rest = 
  union {
    cylinder {
      < 0, 0, 0>, <0, arm_rest_size, 0>, arm_thickness / 2
      texture { tx_fosca }
    }

    difference {
      cylinder {
        <0, 0, 0>, <0, 0.5, 0>, arm_thickness
        texture { tx_fosca }
      }
      cylinder {
        <0, -1, 0>, <0, 1, 0>, arm_thickness * 0.9
      }
      translate <0, arm_rest_size / 2, 0 >
    }
  }


// Aqui est� a cena, finalmente:

union{
  // object{ eixos(5.00) }

  object{ chair_base }
  object { chair_rest2 translate < 0, -chair_radius, -chair_height + back_height / 2 > }
  object { arm_rest translate < - 2 * chair_radius / 3, - 2 * chair_radius / 3, chair_height >}
  object { arm_rest translate < 2 * chair_radius / 3, - 2 * chair_radius / 3, chair_height >}

  // rotate < 0, 0, -45 >

  // object{ chao  translate < 0,0,-5 > texture{ tx_xadrez } } 
  // object{ bolota  translate < 0,0,+1.5 * (-pow(2, 30 * clock - 10) * sin((clock * 30 - 10.75) * pi * 2 / 3)) > texture{ tx_espelho } }

  // object {}
  // // object{ bolinha translate < +5,+4,+2 > texture{ tx_vidro } 
  // //   interior { ior 1.01 }
  // // }

  // // difference{ 
  // //   union{
  // //     object{ bola } 
  // //     object{ pino }
  // //   }
  // //   object{ furo }
  // // }
}

#include "camlight.inc"
#declare centro_cena = < 0.00, -4.00, 2.00 >;
#declare raio_cena = 13.0;
#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)