SpotLight.hxx

   1 #ifndef SPOTLIGHT_HXX
   2 #define SPOTLIGHT_HXX
   3
   4 #include "Light.hxx"
   5
   6 class SpotLight : public Light
   7 {
   8 public:
   9   SpotLight(Scene* scene, const Vec3f& pos, const Vec3f& dir, const Vec3f& intensity, float alpha_min, float alpha_max);
  10   virtual ~SpotLight();
  11
  12   virtual bool Illuminate(Ray& ray, Vec3f& intensity);
  13
  14   const Vec3f& position() const;
  15   const Vec3f& direction() const;
  16
  17 private:
  18   SpotLight();
  19
  20   // position and direction
  21   Vec3f m_pos, m_dir;
  22   // emission (red, green, blue)
  23   Vec3f m_intensity;
  24   // opening angles
  25   float m_alpha_min, m_alpha_max;
  26 };
  27 #endif