Load Box_normal model in main()

main.cpp

Define the normal map shader global variable

GLuint blinnShader;
GLuint phongShader;
GLuint texblinnShader;

// LabA08 Normal map
GLuint normalmapShader;

Init the normal map shader in main()

    normalmapShader = initShader("shaders/normalmap.vert", "shaders/normalmap.frag");
    setLightPosition(lightPos);
    setViewPosition(viewPos);

Load the Box_normal model

    std::shared_ptr<Mesh> box = std::make_shared<Mesh>();
    box->init("models/Box_normal.obj", normalmapShader);

Draw the model

    while (!glfwWindowShouldClose(window))
    {
        glfwPollEvents();

        glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

        // for LabA08 Normal Map
        box->draw(matModelRoot, matView, matProj);
        
        glfwSwapBuffers(window);
    }