opengl - glewInit() 失败，OpenGL 应用程序

Question

我正在尝试使用 glew/glfw 构建一个 OpenGL 应用程序。我已经下载了二进制文件，将它们放在文件夹的根目录中，将路径添加到 include 和 lib 目录，并告诉我的项目需要 glew32.lib、GLFW.lib 和 opengl32.lib。

我什至将glew32.lib复制到根目录，因为我的项目看不到它。

我必须将所有依赖项保留在项目目录中，因为我将分发它。我不知所措。

现在，当我运行我的程序时，它在 glewInit() 处失败

到目前为止，这是我的实现:

#include "Common.h"

GameEngine::GameEngine()
{
    InitWithSize(1024, 768);
    InitInput();
}

void GameEngine::InitWithSize(int _width, int _height)
{
    try {
        // Initialise GLFW
        if( !glfwInit() )
            throw std::exception("Failed to initialize GLFW\n");

        //glfwOpenWindowHint(GLFW_FSAA_SAMPLES, 4);
        glfwOpenWindowHint(GLFW_OPENGL_VERSION_MAJOR, 3); 
        glfwOpenWindowHint(GLFW_OPENGL_VERSION_MINOR, 3);
        glfwOpenWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);

        // Open a window and create its OpenGL context
        if( !glfwOpenWindow( _width, _height, 0,0,0,0, 32,0, GLFW_WINDOW ) ) 
            throw std::exception("Failed to initialize GLFW\n");


        glfwSetWindowTitle( "Tutorial 01" );

        // Initialize GLEW
        if (glewInit() != GLEW_OK)
            throw std::exception("Failed to initialize GLEW\n");


    } catch ( std::system_error const& err) {
        fprintf(stdout, "System Error: %s", err.what());
        glfwTerminate(); // Free glfw if it has been allocated
        // Try Again
        this->InitWithSize(_width, _height);
    } catch( std::exception const& err) {
        fprintf(stdout, "Exception Found: %s", err.what());
    } catch ( ... ) {
        fprintf(stdout,"Unknown Exception Occurred\n");
    }
}

void GameEngine::InitInput()
{
        // Ensure we can capture the escape key being pressed below
        glfwEnable( GLFW_STICKY_KEYS );
}

void GameEngine::StartGameLoop()
{
    do{
            // Draw nothing, see you in tutorial 2 !

            // Swap buffers
            glfwSwapBuffers();

        } // Check if the ESC key was pressed or the window was closed
        while( glfwGetKey( GLFW_KEY_ESC ) != GLFW_PRESS &&
            glfwGetWindowParam( GLFW_OPENED ) );
}


void GameEngine::InitTestData()
{
    // An array of 3 vectors which represents 3 vertices
    static const GLfloat g_vertex_buffer_data[] = {
        -1.0f, -1.0f, 0.0f,
        1.0f, -1.0f, 0.0f,
        0.0f,  1.0f, 0.0f,
    };

}

使用我的通用标题:

#ifndef _COMMON_H
#define _COMMON_H

// OpenGL Libraries
#define GLEW_STATIC
//#pragma comment(lib, "glew32.lib")
#include <GL\glew.h>
#include <GL\glfw.h>

// Core Libraries
#include <Windows.h>
#include <stdio.h>
#include <stdlib.h>
#include <map>
#include <string>
#include <fstream>

// C++ 11 Libraries
#include <memory>
#include <exception>
#include <thread>
#include <chrono>

// Manager Classes
#include "ThreadManager.h"
#include "GameEngine.h"
#include "ShaderManager.h"

// Lesser Classes
#include "Shader.h"

#endif

Answer 1

我知道这个答案来得有点晚，但我没有看到您通过调用 glfwMakeContextCurrent(window) 来使 OpenGL 上下文成为最新的.在调用 glewInit() 之前，您必须这样做