为什么glfw窗口老是消失？

Question

代码编译正常，但是当我执行 a.out 时，窗口出现一瞬间然后再次消失。

我怎样才能让它留在那里？

我正在 bodhi linux 5.15.0-78-generic 上编译 与 g++ -lGLEW -lGL -lglfw

我有：

#include <iostream>
#define GLEW_STATIC
#include <GL/glew.h>
#include <GLFW/glfw3.h>

const GLuint WIDTH = 800, HEIGHT = 600;

const GLchar * vertexShaderSource = "Version 330 core\n"

"layout (location = 0) in vec3 position;\n"
"void main()\n"
"{\n"
"gl_Position = vec4(position.x, position.y, position.z, 1.0);\n"
"}\0";

const GLchar * fragmentShaderSource = "#version 330 core\n"
"out vec4 color;\n"
"void main()\n"
"{\n"
"color = vec4(1.0f, 0.5f, 0.2f, 1.0f);\n"
"}\n";

int main()
{
glfwInit();

glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);

glfwWindowHint(GLFW_RESIZABLE, GL_FALSE);

GLFWwindow *window = glfwCreateWindow (WIDTH, HEIGHT, "Learn OpenGL", nullptr, nullptr);

int screenWidth, screenHeight;

glfwGetFramebufferSize(window, &screenWidth, &screenHeight);

if (nullptr == window)
{
std::cout<<"Failed to create glfw window!\n";
glfwTerminate();

return EXIT_FAILURE;
}

glfwMakeContextCurrent(window);

glewExperimental = GL_TRUE;

if (GLEW_OK != glewInit())
{
std::cout<<"Failed to initialize glew!"<<std::endl;

return EXIT_FAILURE;
}

glViewport(0,0,screenWidth,screenHeight);
GLuint vertexShader = glCreateShader(GL_VERTEX_SHADER);
glShaderSource(vertexShader, 1, &vertexShaderSource, NULL);

glCompileShader(vertexShader);
GLint success;
GLchar infoLog(512);

glGetShaderiv(vertexShader, GL_COMPILE_STATUS, &success);

if(!success)
{
glGetShaderInfoLog(vertexShader, 512, NULL, infoLog);
std::cout<<"ERROR::SHADER::FRAGMENT::COMPILATION_FAILED"<<infoLog<<std::endl;
}

GLuint fragmentShader = glCreateShader(GL_FRAGMENT_SHADER);
glShaderSource(fragmentShader, 1, &fragmentShaderSource, NULL);
glCompileShader(fragmentShader);
glGetShaderiv(fragmentShader, GL_COMPILE_STATUS, &success);

if(!success)
{
glGetShaderInfoLog(fragmentShader, 512, NULL, infoLog);
std::cout<<"ERROR::SHADER::FRAGMENT::COMPILATION::FAILED\n"<<infoLog<<std::endl;
}

GLuint shaderProgram = glCreateProgram(); 
glAttachShader(shaderProgram, vertexShader);
glAttachShader(shaderProgram, fragmentShader);
glLinkProgram(shaderProgram);

glGetProgramiv(shaderProgram, GL_LINK_STATUS, &success);

if(!success)
{
glGetProgramInfoLog(shaderProgram, 512, NULL, infoLog);
std::cout<<"ERROR::SHADER::PROGRAM::LINKING::FAILED\n"<<infoLog<<std::endl;
}

glDeleteShader(vertexShader);
glDeleteShader(fragmentShader);

GLfloat vertices[] =
{
-0.5f, 0.5f, 0.0f,
0.5f, -0.5f, 0.0f,
0.0f, 0.5f, 0.0f
};

GLuint VBO, VAO;
glGenVertexArrays(1, &VAO);
glGenBuffers(1, &VBO);

glBindVertexArray(VAO);
glBindBuffer(GL_ARRAY_BUFFER,VBO);
glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), vertices, GL_STATIC_DRAW);
glVertexAttribPointer(0,3,GL_FLOAT,GL_FALSE, 3 * sizeof(GLfloat), (GLvoid *) 0);
glEnableVertexAttribArray(0);

glBindBuffer(GL_ARRAY_BUFFER, 0);
glBindVertexArray(0);

while (!glfwWindowShouldClose(window))
{
glfwPollEvents();
glClearColor(0.2f,0.3f,0.3f,1.0f);
glClear(GL_COLOR_BUFFER_BIT);

glUseProgram(shaderProgram);
glBindVertexArray(VAO);
glDrawArrays(GL_TRIANGLES, 0, 3);
glBindVertexArray(0);

glfwSwapBuffers(window);
}

glDeleteVertexArrays(1,&VAO);
glDeleteBuffers(1,&VBO);

glfwTerminate();

return EXIT_SUCCESS;
}

我编译了代码，但是当我执行 a.out 时，窗口不断消失

Answer 1

您检查过打印的日志吗？从您提供的源代码中，我发现顶点着色器不应编译。它开始于

Version 330 core\n

但必须是

#version 330 core\n