// Exemplo de arquivo de descricao de cena para POV-ray
// Last edited on 2021-12-08 23:45:02 by stolfi

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

background{ color rgb < 0.2, 0.2, 0.2 > }

#declare tx_UFO_body =
  texture{
    pigment{ color rgb < 0.2, 0.2, 0.2 > }
    finish{ diffuse 0.8 reflection 0.25 ambient 0.1 specular 0.5 roughness 0.1}
  }

#declare tx_glass =
  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_etSkin =
  texture{
    pigment{ color rgb < 0.1, 0.6, 0.1 > }
    finish{ diffuse 0.8 ambient 0.9 specular 0.5 roughness 0.5}
  }
#declare tx_etEye =
  texture{
    pigment{ color rgb < 0.7, 0.0, 0.0 > }
    finish{ diffuse 0.8 ambient 0.6 specular 0.5 roughness 0.1}
  }


// ======================================================================
// DESCRICAO DA CENA 

#declare ovni_radius = 1.000;
#declare cabine_radius = 0.4;
#declare head_radius = 0.2;
#declare eye_radius = 0.05;
#declare body_radius = 0.1;
#declare neck_radius = 0.4;

// Partes da cena:

#declare ufo_sphere =
  sphere{
    < 0.00, 0.00, 0.00 >, ovni_radius
    texture{ tx_UFO_body }
  }

#declare box_diff =
  box{
    < -1.00, -1.00, 0.00 >, < 1.00, 1.00, 1.00 >
    texture{ tx_UFO_body }
  }
  
#declare cabine = 
  cylinder {
        <0.00, 0.00, 0.00>,
        <0.00, 0.00, 1.00>,
        cabine_radius
        texture{ tx_glass }
      }

#declare cabine_sphere =
  sphere{
    < 0.00, 0.00, 1.00 >, cabine_radius
    texture{ tx_glass }
  }

#declare et_head =
  sphere{
    < 0.00, 0.00, 0.7 >, head_radius
    texture{ tx_etSkin }
  }
#declare et_eye =
  sphere{
    < head_radius-0.051, head_radius-0.051, 0.76 >, eye_radius
    texture{ tx_etEye}
  }
#declare et_body =
  cone{
    <0, 0, 0>, neck_radius, <0,0,0.5>, body_radius
    texture{ tx_etSkin }
  }
  
#include "eixos.inc"

// Aqui est� a cena, finalmente:

union{
  // object{ eixos(1.0) }
  difference{
    difference{
      object{ ufo_sphere  translate < 0,0,2 > }
      object{ box_diff translate <0,0,2.3> }
    }
    object{ box_diff translate <0,0,0.7> }
  }
  union {
    object{ cabine translate <0,0,2>}
    difference {
      object{ cabine_sphere translate <0,0,2>}
      object{ cabine translate <0,0,2>}
    }
  }
  union {
    object{ et_body translate <0,0,2>}
    object{ et_head translate <0,0,2>}
    object{ et_eye translate <0,0,2>}
    object{ et_eye translate <0,0,2>}
  }
}

#include "camlight.inc"
#declare centro_cena = < 0.30, 0.30, 2.50 >;
#declare raio_cena = 2.0;
#declare dir_camera = < 14.00, 7.00, 9.00 >;
#declare dist_camera = 5*raio_cena;
#declare intens_luz = 1.20;
camlight(centro_cena, raio_cena, dir_camera, dist_camera , z, intens_luz)