c++ - OpenGL 程序不断崩溃？

Question

此代码返回 3 个错误(实际上是所有错误)GLEW 初始化失败； GLFW 初始化失败；窗口创建失败:

#include "GL/glew.h"
#include "GLFW/glfw3.h"

#include <iostream>


//Window dimensions
const GLint SCREEN_WIDTH = 800, SCREEN_HEIGHT = 600;


int main() {
    //Initialize GLFW
    if (glfwInit() != GLEW_OK) { 
        std::cout << "GLFW init failed\n"; 
        glfwTerminate(); 
    }


    //Setup GLFW window properties
    //OpenGL version
    glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3); //Large version
    glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3); //Small version 
    glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE); //Detects any old OpenGL code, this will throw an error
    glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE); //Allows forward compatibility (between differnt OS) 


    //Creating window
    GLFWwindow* window; 
    window = glfwCreateWindow(SCREEN_WIDTH, SCREEN_HEIGHT, "OpenGL Test Window", NULL, NULL);
    if (window == NULL) {
        std::cout << "GLFW window creation failed!\n";
        glfwTerminate();
    }

    //Get buffer size information
    int BUFFER_WIDTH, BUFFER_HEIGHT;
    glfwGetFramebufferSize(window, &BUFFER_WIDTH, &BUFFER_HEIGHT);

    //Set context for GLEW to use (can change between which window)
    glfwMakeContextCurrent(window);

    //Allow modern extension features
    glewExperimental = GL_TRUE;


    if (glfwInit() != GLEW_OK) {
        std::cout << "Glew init failed!\n";
        glfwDestroyWindow(window);
        glfwTerminate();
    }


    //Setup viewport size
    glViewport(0, 0, BUFFER_WIDTH, BUFFER_HEIGHT);



    //Main game loop
    while (!glfwWindowShouldClose(window)) {
        //Get + Handle user input events
        glfwPollEvents();

        //Clear window
        glClearColor(1.f, 0.f, 0.f, 1.f);
        glClear(GL_COLOR_BUFFER_BIT);

        glfwSwapBuffers(window);
    }
}

Answer 1

试试这个，你需要初始化 Glew。

GLenum GlewInitResult;
GlewInitResult = glewInit();
if ( GLEW_OK != GlewInitResult) 
{
    glfwTerminate();
    return -1;
}