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Six degrees of freedom camera - 1st installment

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This commit is contained in:
Enrico Turri 2020-01-15 12:49:34 +01:00
parent 536514ff03
commit 62e60bcb43
8 changed files with 245 additions and 2 deletions
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37
src/slic3r/GUI/Camera.hpp
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@ -30,21 +30,29 @@ struct Camera
Num_types
};
#if !ENABLE_6DOF_CAMERA
float phi;
bool requires_zoom_to_bed;
bool inverted_phi;
#endif // !ENABLE_6DOF_CAMERA
bool requires_zoom_to_bed;
private:
EType m_type;
Vec3d m_target;
#if !ENABLE_6DOF_CAMERA
float m_theta;
#endif // !ENABLE_6DOF_CAMERA
double m_zoom;
// Distance between camera position and camera target measured along the camera Z axis
mutable double m_distance;
mutable double m_gui_scale;
mutable std::array<int, 4> m_viewport;
#if ENABLE_6DOF_CAMERA
Transform3d m_view_matrix;
#else
mutable Transform3d m_view_matrix;
#endif // ENABLE_6DOF_CAMERA
mutable Transform3d m_projection_matrix;
mutable std::pair<double, double> m_frustrum_zs;
@ -66,8 +74,10 @@ public:
double get_distance() const { return m_distance; }
double get_gui_scale() const { return m_gui_scale; }
#if !ENABLE_6DOF_CAMERA
float get_theta() const { return m_theta; }
void set_theta(float theta, bool apply_limit);
#endif // !ENABLE_6DOF_CAMERA
double get_zoom() const { return m_zoom; }
void update_zoom(double delta_zoom);
@ -76,7 +86,11 @@ public:
const BoundingBoxf3& get_scene_box() const { return m_scene_box; }
void set_scene_box(const BoundingBoxf3& box) { m_scene_box = box; }
#if ENABLE_6DOF_CAMERA
void select_view(const std::string& direction);
#else
bool select_view(const std::string& direction);
#endif // ENABLE_6DOF_CAMERA
const std::array<int, 4>& get_viewport() const { return m_viewport; }
const Transform3d& get_view_matrix() const { return m_view_matrix; }
@ -110,6 +124,21 @@ public:
void debug_render() const;
#endif // ENABLE_CAMERA_STATISTICS
#if ENABLE_6DOF_CAMERA
// translate the camera in world space
void translate_world(const Vec3d& displacement);
// rotate the camera on a sphere having center == m_target and radius == m_distance
// using the given variations of spherical coordinates
void rotate_on_sphere(double delta_azimut_rad, double delta_zenit_rad, bool apply_limit);
// rotate the camera around three axes parallel to the camera local axes and passing through m_target
void rotate_local_around_target(const Vec3d& rotation_rad);
// returns true if the camera z axis (forward) is pointing in the negative direction of the world z axis
bool is_looking_downward() const;
#endif // ENABLE_6DOF_CAMERA
private:
// returns tight values for nearZ and farZ plane around the given bounding box
// the camera MUST be outside of the bounding box in eye coordinate of the given box
@ -121,6 +150,12 @@ private:
double calc_zoom_to_bounding_box_factor(const BoundingBoxf3& box, int canvas_w, int canvas_h) const;
#endif // ENABLE_THUMBNAIL_GENERATOR
void set_distance(double distance) const;
#if ENABLE_6DOF_CAMERA
Transform3d look_at(const Vec3d& position, const Vec3d& target, const Vec3d& up) const;
void set_default_orientation();
Vec3d validate_target(const Vec3d& target) const;
#endif // ENABLE_6DOF_CAMERA
};
} // GUI