OpenGL(2)-窗口

写在前面

通过本节，你可以毫不费力的--->创建一个窗口

OpenGL中窗口，即载体

导入头文件

#include <glad/glad.h>
#include <GLFW/glfw3.h>

初始化glfw窗口

    glfwInit();
    glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
    glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
    glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
#ifdef __APPLE__
    glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
#endif 

创建窗口 

    //创建窗口
    GLFWwindow* window = glfwCreateWindow(800, 600, "LearnOpenGL", NULL, NULL);
    // 防止创建失败
    if (window == NULL){
        std::cout<< "Failed to create glfw window" << std::endl;
        glfwTerminate();
        return -1;
    }
    glfwMakeContextCurrent(window);
11     
    if (!gladLoadGLLoader((GLADloadproc)glfwGetProcAddress))
    {
        std::cout << "Failed to initialize GLAD" << std::endl;
        return -1;
    }

窗口长存 

    // 避免闪退，监听输入事件
    while(!glfwWindowShouldClose(window))
    {
        if(glfwGetKey(window, GLFW_KEY_ESCAPE == GLFW_PRESS))
            glfwSetWindowShouldClose(window, true);

        glfwPollEvents();
    } 

总结

这一节是入门章节，就是先搞一个窗口出来，方便我们以后的测试，下一节开始实现具体的渲染