scene GlassSphere;

Scene {
  PerspectiveCamera {    
    location := <0, 3, -5>;
    look_at := <0, 1, 0>;
    angle := 45;
  }
  World {

    var glassFinish :Finish;
    var c2: Color;
    
    c2 := rgbt <1, 1, 1, 0.95>;

    glassFinish := Finish {
      refraction := 1.0;
      ior := 1.5;
    }

    PointLight {      
      location := <0, 5, 0>;
      fade_power := 2;
      fade_distance := 7;
    }

    Sphere { 
      center := <0, 1, 0>;

      SimpleTexture {
        SolidColorPigment {
          color := c2;
        }
        finish := glassFinish;
      }
    }

    Plane { 
      normal := <0, 1, 0>;
      distance := -0.001;

      SimpleTexture {
        XYZPigment {
          CheckerPattern {
            size := 2;
          }
          SimpleColorMap {
            color1 :=  rgb <1, 1, 1>;
            color2 :=  rgb <0.15, 0.15, 0.15>;
          }
        }
      }

    }
  }
}