OpenGL - 不渲染顶点/三角形

所以我最近一直在尝试学习OpenGL，遵循几个文本和视频教程。

无法画三角形，我已经双重和三重检查了我是否以正确的顺序执行了所有必要的步骤，但我显然错过了一些东西

在添加一些代码之前，我应该声明我使用 glfw、glad 和 ogl 4.6。

主.cpp

//while debugging ive add extra unnecessary call to UseProgram and bindvertexarray every frame to be sure
static void Render(GLFWwindow* window)
{
    glfwMakeContextCurrent(window);
    gladLoadGLLoader((GLADloadproc)glfwGetProcAddress);
    glfwSwapInterval(1);
    glClearColor(.98f, .5f, .5f, 1);
    std::vector<Vertex> vertsTri = {
        {
            Vertex(0.0f,1.0f,0.0f,0,0,0,0,0)
        },
        {
            Vertex(-1.0f,-1.0f,0.0f,0,0,0,0,0)
        },
        {
            Vertex(1.0f,-1.0f,0.0f,0,0,0,0,0)
        }
    };
    Model tri(vertsTri, "basic");
    tri.UseProgram();
    glBindVertexArray(tri.getVAO());
    while (!glfwWindowShouldClose(window))
    {
        glClear(GL_COLOR_BUFFER_BIT);
        // rendering here
        tri.UseProgram();
        glBindVertexArray(tri.getVAO());
        glDrawArrays(GL_TRIANGLES, 0, tri.size());
        glfwSwapBuffers(window);
    }
}
int main()
{
    glfwSetErrorCallback(errorCallback);
    if (!glfwInit())
        exit(EXIT_FAILURE);
    glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 4);
    glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 6);
    glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
    GLFWwindow* window = glfwCreateWindow(800, 600, "Title", nullptr, nullptr);
    if (!window)
    {
        glfwTerminate();
        exit(EXIT_FAILURE);
    }
    glfwSetFramebufferSizeCallback(window, windowResizeCallback);
    glfwSetKeyCallback(window, keyCallback);
    // Resource loading and creation in here

    std::thread renderThread(Render, window);
    while (!glfwWindowShouldClose(window))
    {
        // Realtime game mechanics here

        glfwPollEvents();
    }
    if (renderThread.joinable())
        renderThread.join();
    glfwDestroyWindow(window);
    glfwTerminate();
    return 0;
}

型号.cpp

//Gets called in the constructor with a Vertex vector, p_shader is created in Model constructor
void Model::Create()
{
    // Generate a vertex array object and bind it
    glGenVertexArrays(1, &p_vaoId);
    glBindVertexArray(p_vaoId);
    // Generate a vertex buffer object and bind it
    glGenBuffers(1, &p_vboId);
    glBindBuffer(GL_ARRAY_BUFFER, p_vboId);
    glBufferData(GL_ARRAY_BUFFER, p_vertices.size()*sizeof(Vertex), &(p_vertices[0]), GL_STATIC_DRAW);
    // Define attributes and enable them
    glEnableVertexArrayAttrib(p_vaoId, 0);
    glVertexAttribPointer(0, sizeof(Vertex::position) / sizeof(float), GL_FLOAT, false, sizeof(Vertex::position), (void*)offsetof(Vertex, position));
    glEnableVertexArrayAttrib(p_vaoId, 1);
    glVertexAttribPointer(1, sizeof(Vertex::normal) / sizeof(float), GL_FLOAT, false, sizeof(Vertex::normal), (void*)offsetof(Vertex, normal));
    glEnableVertexArrayAttrib(p_vaoId, 2);
    glVertexAttribPointer(2, sizeof(Vertex::uv) / sizeof(float), GL_FLOAT, false, sizeof(Vertex::uv), (void*)offsetof(Vertex, uv));
}

着色器.cpp

// p_v/fShaderSource is set in LoadSource, while debugging ive made sure the source is gotten correctly
void Shader::Create()
{
    int errorResult = 0;
    // Load shader sources into memory before anything else
    LoadSource();
    // Creating shader objects
    p_vShaderId = glCreateShader(GL_VERTEX_SHADER);
    p_fShaderId = glCreateShader(GL_FRAGMENT_SHADER);
    // Compile the shaders
    Compile(p_vShaderId, p_vShaderSource);
    Compile(p_fShaderId, p_fShaderSource);
    // Create a program object
    p_programId = glCreateProgram();
    // Attach shaders to the program
    glAttachShader(p_programId, p_vShaderId);
    glAttachShader(p_programId, p_fShaderId);
    //Link the program and handle errors
    glLinkProgram(p_programId);
    glGetProgramiv(p_programId, GL_LINK_STATUS, &errorResult);
    if (!errorResult)
    {
        int length;
        glGetShaderiv(p_programId, GL_INFO_LOG_LENGTH, &length);
        char* log = new char[length];
        glGetProgramInfoLog(p_programId, length, &length, log);
        std::cout << "[Link Error] Failed to link program" << std::endl;
        std::cout << log << std::endl;
        delete log;
        glDeleteShader(p_vShaderId);
        glDeleteShader(p_fShaderId);
    }
    // Validate the program and handle errors
    glValidateProgram(p_programId);
    glGetProgramiv(p_programId, GL_VALIDATE_STATUS, &errorResult);
    if (!errorResult)
    {
        int length;
        glGetShaderiv(p_programId, GL_INFO_LOG_LENGTH, &length);
        char* log = new char[length];
        glGetProgramInfoLog(p_programId, length, &length, log);
        std::cout << "[Validate Error] Failed to validate program" << std::endl;
        std::cout << log << std::endl;
        delete log;
        glDeleteShader(p_vShaderId);
        glDeleteShader(p_fShaderId);
        glDeleteProgram(p_programId);
    }
    // Cleanup shaders after linking and validating
    glDetachShader(p_programId, p_vShaderId);
    glDetachShader(p_programId, p_fShaderId);
    glDeleteShader(p_vShaderId);
    glDeleteShader(p_fShaderId);
}
void Shader::Compile(unsigned int& shaderId, std::string source)
{
    int compileResult = 0;
    const char* csource = (const char*)source.c_str();
    glShaderSource(shaderId, 1, &csource, 0);
    glCompileShader(shaderId);
    glGetShaderiv(shaderId, GL_COMPILE_STATUS, &compileResult);
    if (!compileResult)
    {
        int length;
        glGetShaderiv(shaderId, GL_INFO_LOG_LENGTH, &length);
        char* log = new char[length];
        glGetShaderInfoLog(shaderId, length, &length, log);
        std::cout << "[Compile Error] Failed to compile shader - "" + source + """<<  std::endl;
        std::cout << log << std::endl;
        delete log;
    }
}

basic.vert

#version 460 core
layout(location = 0) in vec3 position;
out vec4 fColor;
void main()
{
    gl_Position.xyz = position;
    gl_Position.w = 1.0;
    fColor = vec4(gl_Position.xyz, 1.0);
}

基本碎片

#version 460 core
in vec4 fColor;
layout(location = 0) out vec4 diffuseColor;
void main()
{
    diffuseColor = vec4(1,0,0,0);
}

我已经删除了一些不执行任何 ogl 调用的特定于类的代码，如果这太难诊断，我可以添加整个代码，因为它还不错。我已经在片段着色器中尝试了多种样式的颜色，但我尝试过的都没有奏效，话虽如此，但如果您认为问题确实出在片段着色器中，请告诉我。