學習地址:https://learnopengl-cn.github.io

學習成果:

前言:

跟著教程走,用VS2017 配置完了OpenGL的運行.

不得不說...這玩意配置比JAVA配置還麻煩...

好在終於跑起來了.

感謝 Bruce_wjh 博主的配置教程,比官方的好很多.(可惜還有些缺陷)

https://blog.csdn.net/qq_37338983/article/details/78997179

問題1:

直接往項目中添加glad.c 會報錯:

　　----glad.c在查找預編譯頭遇到意外的文件結尾,是否忘記向源中添加#include "stdafx.h" ?

解決方法:

　　右擊glad.c -> 屬性 -> C/C++ -> 預編譯頭 -> 不使用預編譯頭

問題2: OpenGL窗口白屏並且未響應

解決方案:

1.檢查是否忘記使用緩存 glfwSwapBuffers(window);

2.是否 glfwWindowShouldClose(window) 打錯

　 　glfwWindowShouldClose

(ps: 第二種是可以通過編譯的.....這裏坑了好久)

附上代碼:

// 頭文件位置不一定都一樣

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

using namespace std;

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

int main()
{
    glfwInit();
    glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR,3);
    glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR,3);
    glfwWindowHint(GLFW_OPENGL_PROFILE,GLFW_OPENGL_CORE_PROFILE);
    GLFWwindow* window = glfwCreateWindow(800, 600, "Oh!I see you!", NULL, NULL);

    if (window == NULL) {
        std::cout << "Failed to create the windows" << std::endl;
        glfwTerminate();
        return -1;
    }
    glfwMakeContextCurrent(window);
    glfwSetFramebufferSizeCallback(window, framebuffer_size_callback);

    if (!gladLoadGLLoader((GLADloadproc)glfwGetProcAddress)) {
        std::cout << "Failed to initialize GLAD" << std::endl;
        return -1;
    }
    
    while (!glfwWindowShouldClose(window)) {

        //輸入處理
        processInput(window);

        //渲染指令
        glClearColor(0.2f,0.3f,0.3f,1.0f);
        glClear(GL_COLOR_BUFFER_BIT);

        glfwSwapBuffers(window);
        glfwPollEvents();
    }

    glfwTerminate();
    return 0;
}

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

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

運行結果:

初入 OpenGL ---白屏問題 -- glad.c在查找預編譯頭遇到意外的文件結尾,是否忘記向源中添加#include "stdafx.h" ?