Teo-CD
9568b54b87
Added world translation for camera Renamed previous translation to local_translate
51 lines
1.7 KiB
C++
51 lines
1.7 KiB
C++
//
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// Created by trotfunky on 19/10/2019.
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//
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#ifndef TESTS_OPENGL_CAMERA_H
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#define TESTS_OPENGL_CAMERA_H
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#include <cmath>
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#include <GL/glut.h>
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#include "Math/Quaternion.h"
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#include "Math/Vectors.h"
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class Camera {
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public:
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Camera(const Vec3d& eye_pos,const Vec3d& look_direction,const Vec3d& up_vector);
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/// Translates the camera according to the world axises.
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/// \param translation Translation in the world coordinates system.
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void translate(const Vec3d& translation);
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/// Translates the camera relative to its current position and look direction.
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/// \param translation Translation where x is pointing in the direction of vision.
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void local_translate(const Vec3d& translation);
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/// Rotates the gaze around its local x and z but around global y, relatively to the current orientation.
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/// This is to provide a coherent movement in regards to mouse movement.
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/// \param rotation Angles are radians to rotate about each axis.
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void rotate(const Vec3d& rotation);
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/// Calls the gluLookAt function for the camera.
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void look();
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void set_position(const Vec3d& eye_pos);
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const Vec3d& get_eyepos() const;
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const Vec3d& get_gaze() const;
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const Vec3d& get_gazeup() const;
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private:
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Vec3d eye;
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Vec3d gaze;
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Vec3d gaze_up;
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/// Quaternion from the world coordinates to the local coordinates
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Quaternion rotation_quaternion;
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/// Compute rotation quaternion from the global coordinates to the local coordinates.
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/// As per https://math.stackexchange.com/questions/2122668/calculate-orientation-quaternion-given-two-axes-of-a-coordinate-system
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void compute_base_change();
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};
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#endif //TESTS_OPENGL_CAMERA_H
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