Function motionFunc

tutorials/common/tutorial/tutorial.cpp:696–698

    TutorialApplication::instance->clickFunc(window,button,action,mods);
  }
  void motionFunc(GLFWwindow* window, double x, double y) {
    TutorialApplication::instance->motionFunc(window,x,y);
  }
  void displayFunc() {
    TutorialApplication::instance->displayFunc();
  }