Win10下给Clion配置OpenGL（glad+glfw）

最新推荐文章于 2023-11-30 17:46:37 发布

潇洒王某人

最新推荐文章于 2023-11-30 17:46:37 发布

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分类专栏： OpenGL windows 文章标签： opengl

本文链接：https://blog.youkuaiyun.com/Dead_Rabbit6_0/article/details/114038259

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本文详细介绍了如何在Windows Clion环境下下载并配置GLFW和GLAD库，包括选择32位预编译包、设置include和lib路径，以及CMakeLists.txt的修改。重点在于实际操作步骤和关键代码片段，适合初学者入门OpenGL开发。

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内容来自 https://blog.youkuaiyun.com/weixin_41685373/article/details/104576808
个人针对自己电脑情况做了详细介绍
GLAD 下载地址
 GLFW下载地址

! 此处需要特殊说明：个人在GLFW下载时，选择了32位已预编译好的包，并使用了lib-mingw文件夹下的内容，因为本机的Clion默认使用了32位的环境，我想大多数Clion默认安装后都是这样的

下载两者并解压后，我在C盘根目录下创建了个文件夹，用于存放以后需要存放的环境：Environment
在这里插入图片描述

include文件夹下存放glad和glfw的include内容
lib下存放glfw文件夹下lib-mingw中的三个文件（不知道只存放dll是否可以）
在工程目录下新建src文件夹，存放glad src中的glad.c文件，并像引用文章中描述的那样改写CMakeLists.txt文件

cmake_minimum_required(VERSION 3.16)
project(learn_opengl)

set(CMAKE_CXX_STANDARD 14)

link_directories("C:/Environments/OpenGL/lib")
include_directories("C:/Environments/OpenGL/include")

add_executable(learn_opengl main.cpp src/glad.c)

target_link_libraries(learn_opengl libglfw3.a)

测试代码：

# 源码来源https://learnopengl.com/ 
#include <glad/glad.h>
#include <GLFW/glfw3.h>

#include <iostream>

void framebuffer_size_callback(GLFWwindow* window, int width, int height);
void processInput(GLFWwindow *window);

// settings
const unsigned int SCR_WIDTH = 800;
const unsigned int SCR_HEIGHT = 600;

int main()
{
    // glfw: initialize and configure
    // ------------------------------
    glfwInit();
    glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
    glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
    glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);

    // glfw window creation
    // --------------------
    GLFWwindow* window = glfwCreateWindow(SCR_WIDTH, SCR_HEIGHT, "LearnOpenGL", NULL, NULL);
    if (window == NULL)
    {
        std::cout << "Failed to create GLFW window" << std::endl;
        glfwTerminate();
        return -1;
    }
    glfwMakeContextCurrent(window);
    glfwSetFramebufferSizeCallback(window, framebuffer_size_callback);

    // glad: load all OpenGL function pointers
    // ---------------------------------------
    if (!gladLoadGLLoader((GLADloadproc)glfwGetProcAddress))
    {
        std::cout << "Failed to initialize GLAD" << std::endl;
        return -1;
    }    

    // render loop
    // -----------
    while (!glfwWindowShouldClose(window))
    {
        // input
        // -----
        processInput(window);

        // render
        // ------
        glClearColor(0.2f, 0.3f, 0.3f, 1.0f);
        glClear(GL_COLOR_BUFFER_BIT);

        // glfw: swap buffers and poll IO events (keys pressed/released, mouse moved etc.)
        // -------------------------------------------------------------------------------
        glfwSwapBuffers(window);
        glfwPollEvents();
    }

    // glfw: terminate, clearing all previously allocated GLFW resources.
    // ------------------------------------------------------------------
    glfwTerminate();
    return 0;
}

// process all input: query GLFW whether relevant keys are pressed/released this frame and react accordingly
// ---------------------------------------------------------------------------------------------------------
void processInput(GLFWwindow *window)
{
    if(glfwGetKey(window, GLFW_KEY_ESCAPE) == GLFW_PRESS)
        glfwSetWindowShouldClose(window, true);
}

// glfw: whenever the window size changed (by OS or user resize) this callback function executes
// ---------------------------------------------------------------------------------------------
void framebuffer_size_callback(GLFWwindow* window, int width, int height)
{
    // make sure the viewport matches the new window dimensions; note that width and 
    // height will be significantly larger than specified on retina displays.
    glViewport(0, 0, width, height);
}