OpenGL 输出窗口

最新推荐文章于 2024-01-26 19:05:19 发布

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最新推荐文章于 2024-01-26 19:05:19 发布

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分类专栏： OpenGL 文章标签： c++ 图形渲染

本文链接：https://blog.youkuaiyun.com/qq_43517064/article/details/127827942

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输出一个窗口

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

void framebuffer_size_callback(GLFWwindow* window, int width, int height)
{
    glViewport(0, 0, width, height);
}

void processInput(GLFWwindow* window)
{
    if (glfwGetKey(window,GLFW_KEY_ESCAPE) == GLFW_PRESS)
    {
        // glfwTerminate();
        glfwSetWindowShouldClose(window,true);
    }
}

int main()
{
    glfwInit();
    glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
    glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
    glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);

    // 创建一个窗口
    const auto window = glfwCreateWindow(800, 600, "LearningOpenGL", nullptr, nullptr);

    if (window == nullptr)
    {
        std::cout << "Failed to create GLFW windows" << std::endl;
        glfwTerminate();
        return -1;
    }
    glfwMakeContextCurrent(window);
    if (!gladLoadGLLoader((GLADloadproc)(glfwGetProcAddress)))
    {
        std::cout << "Failed to initialize GLAD" << std::endl;
        return -1;
    }

    // 创建窗口中的视口
    glViewport(0, 0, 800, 600);

    // 注册回调
    glfwSetFramebufferSizeCallback(window, framebuffer_size_callback);

    /* 渲染循环 */
    while (!glfwWindowShouldClose(window))
    {
        processInput(window);

        glClearColor(0.2f,0.3f,0.3f,1.0f);
        glClear(GL_COLOR_BUFFER_BIT);
        
        glfwSwapBuffers(window);
        // 抛事件（处理监听）
        glfwPollEvents();
    }

    glfwTerminate();
    return 0;
}