Scene.hxx

   1 #ifndef SCENE_HXX
   2 #define SCENE_HXX
   3
   4 #include <vector>
   5 #include <string>
   6 #include <fstream>
   7
   8
   9 #include "Ray.hxx"
  10 #include "Camera.hxx"
  11 #include "Light.hxx"
  12 #include "Primitive.hxx"
  13
  14 class Scene
  15 {
  16 public:
  17   Scene();
  18   virtual ~Scene();
  19
  20   // add another primitive to the scene
  21   void Add(Primitive* p);
  22   // add another light source to the scene
  23   void Add(Light* l);
  24
  25   // intersect the ray with all objects in the scene
  26   virtual bool Intersect(Ray& ray);
  27   // find occluder
  28   virtual bool Occluded(Ray& ray);
  29
  30   // trace the given ray and shade it, returnt the color of the shaded ray
  31   Vec3f RayTrace(Ray& ray);
  32
  33   // acces to camera and light sources
  34   const Camera* camera() const;
  35   std::vector<Light*> lights() const;
  36
  37   // set new camera
  38   void setCamera(const Camera* camera);
  39
  40   // reads in a scene description
  41   void ParseOBJ(const std::string& file, float factor);
  42   // calculate scene bounding box
  43   void CalcBounds();
  44
  45   const Box& GetSceneBox() const;
  46 private:
  47   Scene(const Scene& );
  48   Scene& operator=(const Scene& );
  49
  50   void parseOBJLine(const std::string& line);
  51   void parseVertex(std::istringstream& iss);
  52   void parseFace(std::istringstream& iss);
  53   void buildTriangleList(float scale);
  54
  55   Camera* m_camera;
  56   // background color
  57   Vec3f m_bgColor;
  58
  59   // primitives
  60   std::vector<Primitive*> m_primitives;
  61   // lights
  62   std::vector<Light*> m_lights;
  63
  64   // shader used by loading routine
  65   Shader* m_shader;
  66
  67   // storage for vertices and face indices
  68   std::vector<Vec3f> m_vertices, m_faces;
  69   Vec3f m_centroid;
  70
  71   // scene bounding box
  72   Box m_scene_box;
  73 };
  74 #endif