message: Add getters and setters to RenderingParameters
  These are required for extract_texture in Matlab.
  Maybe the better strategy would be to add a constructor to RenderingParameters and not have all these setters.
diff: @@ -142,6 +142,15 @@ public:
  return rotation;
  };
  + void set_rotation(glm::quat rotation_quaternion) {
  + rotation = rotation_quaternion;
  + };
  +
  + void set_translation(float t_x, float t_y) {
  + this->t_x = t_x;
  + this->t_y = t_y;
  + };
  +
  glm::mat4x4 get_modelview() const {
  glm::mat4x4 modelview = glm::mat4_cast(rotation);
  modelview[3][0] = t_x;
  @@ -163,14 +172,26 @@ public:
  return frustum;
  };
  + void set_frustum(Frustum frustum) {
  + this->frustum = frustum;
  + };
  +
  int get_screen_width() const {
  return screen_width;
  };
  + void set_screen_width(int screen_width) {
  + this->screen_width = screen_width;
  + };
  +
  int get_screen_height() const {
  return screen_height;
  };
  + void set_screen_height(int screen_height) {
  + this->screen_height = screen_height;
  + };
  +
  private:
  CameraType camera_type = CameraType::Orthographic;
  Frustum frustum; // Can construct a glm::ortho or glm::perspective matrix from this.
  