OpenGL教程1:打开一个窗口

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// GLFW

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

int main(int argc, const char * argv[]) {

    //初始glfw
    glfwInit();

    //glfw 设置
    glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
    glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
    glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
    glfwWindowHint(GLFW_RESIZABLE, GL_FALSE);

    // only in mac
    glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);

    // 建立一个窗口
    GLFWwindow* window = glfwCreateWindow(800, 600, "LearnOpenGL", nullptr, nullptr);
    if (window == nullptr)
    {
        std::cout << "Failed to create GLFW window" << std::endl;
        glfwTerminate();
        return -1;
    }

    // 上下文
    glfwMakeContextCurrent(window);


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

    }


    glfwTerminate();
    return 0;
}