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, );
     glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, );
     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(, , "LearnOpenGL", NULL, NULL);
     // 防止创建失败
     if (window == NULL){
         std::cout<< "Failed to create glfw window" << std::endl;
         glfwTerminate();
         return -;
     }
     glfwMakeContextCurrent(window);

     if (!gladLoadGLLoader((GLADloadproc)glfwGetProcAddress))
     {
         std::cout << "Failed to initialize GLAD" << std::endl;
         return -;
     }

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