1 #ifndef MSP_GL_CAMERA_H_
2 #define MSP_GL_CAMERA_H_
9 class Camera: public Placeable
12 Geometry::Angle<float> fov;
15 // Some compilers have "near" and "far" keywords
20 Geometry::Angle<float> rotate;
30 void set_field_of_view(const Geometry::Angle<float> &);
31 void set_orthographic(float, float);
32 void set_aspect_ratio(float);
33 void set_depth_clip(float, float);
34 void set_frustum_axis(float, float);
35 void set_frustum_rotation(const Geometry::Angle<float> &);
36 const Geometry::Angle<float> &get_field_of_view() const { return fov; }
37 bool is_orthographic() const { return fov==Geometry::Angle<float>::zero(); }
38 float get_orthographic_width() const { return height*aspect; }
39 float get_orthographic_height() const { return height; }
40 float get_aspect_ratio() const { return aspect; }
41 float get_near_clip() const { return clip_near; }
42 float get_far_clip() const { return clip_far; }
43 const Geometry::Angle<float> &get_frustum_rotation() const { return rotate; }
45 // Deprecated, use set/get_aspect_ratio instead
46 void set_aspect(float a) { set_aspect_ratio(a); }
47 float get_aspect() const { return get_aspect_ratio(); }
49 void set_position(const Vector3 &);
50 void set_look_direction(const Vector3 &);
51 void look_at(const Vector3 &);
52 void set_up_direction(const Vector3 &);
53 const Vector3 &get_position() const { return position; }
54 const Vector3 &get_look_direction() const { return look_dir; }
55 const Vector3 &get_up_direction() const { return up_dir; }
57 virtual void set_matrix(const Matrix &m) { set_object_matrix(m); }
59 /** Sets the position and orientation of the camera from an object matrix. */
60 void set_object_matrix(const Matrix &);
62 /** Returns the view matrix, used to transform coordinates from world space
64 const Matrix &get_view_matrix() const { return view_matrix; }
66 /** Returns the object matrix, used to transform coordinates from eye space
68 const Matrix &get_object_matrix() const { return matrix; }
70 /** Returns the projection matrix. */
71 const Matrix &get_projection_matrix() const { return proj_matrix; }
73 Vector3 project(const Vector4 &) const;
74 Vector3 project(const Vector3 &) const;
75 Vector4 unproject(const Vector4 &) const;
76 Vector3 unproject(const Vector3 &) const;
81 void update_projection_matrix();
82 void update_object_matrix();