我正在尝试使用SDL库显示具有6种不同纹理（所有jpg和jpeg）的旋转立方体。但是该程序仅显示白色方块。任何人都可以解释一下这些纹理发生了什么吗？

每个功能的行为

opengl_init()：初始化opengl设置

init()：初始化SDL设置，包括opengl_init（）

clean_up()：在程序结束前运行

RenewTexture()：在这里我想使用此功能映射纹理

main()：关于绘制顶点并使用旋转功能播放每一帧

const int window_width = 1024;
const int window_height = 1024;
const int SCREEN_BPP = 32;

SDL_Event event;
SDL_Window* win = NULL;
SDL_Renderer* renderer = NULL;
GLuint texId[6];
SDL_GLContext context;
/****** Name Space for Game Variables ******/
namespace var
{
    int frame_start_time = 0;
    int frame_current_time = 0;
    int frame_count = 0;
}

/****** Initializes Core OpenGL Features ******/
bool opengl_init()
{
    glEnable(GL_DEpth_TEST);
    glDepthFunc(GL_LEQUAL);

    glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA);
    glEnable(GL_BLEND);
    glEnable(GL_TEXTURE_2D);

    glClearColor(0,0);

    glMatrixMode(GL_PROJECTION);
    glLoadIdentity();
    gluPerspective(45.0,(640.0 / 480.0),0.1,100.0);

    glMatrixMode(GL_MODELVIEW);
    glLoadIdentity();

    std::cout << glGetError << std::endl;
    if (glGetError() != GL_NO_ERROR)
    {
        return false;
    }

    return true;
}


/****** Initializes SDL,OpenGL and Video and Window ******/
bool init()
{

    //if (SDL_Init(SDL_INIT_EVERYTHING) < 0)
    if (SDL_Init(SDL_INIT_VIDEO) < 0)
    {
        return false;
    }

    win = SDL_CreateWindow("WINDOW",100,window_width,window_height,SDL_WINDOW_OPENGL);
    renderer = SDL_CreateRenderer(win,-1,SDL_RENDERER_accELERATED);
    context = SDL_GL_CreateContext(win);

    if (opengl_init() == false)
    {
        return false;
    }
}

/* Removes objects before game closes */
void clean_up()
{
    SDL_Quit();
}

void RenewTexture(SDL_Surface* tmpimg,int index) {
    GLubyte* map = (GLubyte*)tmpimg->pixels;

    glBindTexture(GL_TEXTURE_2D,texId[index]);
    int w,h;
    w = tmpimg->w;
    h = tmpimg->h;
    /*glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR);
    glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR);
    glTexEnvi(GL_TEXTURE_ENV,GL_TEXTURE_ENV_MODE,GL_REPLACE);*/
    glTexImage2D(
        GL_TEXTURE_2D,GL_RGB,w,h,GL_UNSIGNED_BYTE,map
    );
    glTexParameterf(GL_TEXTURE_2D,GL_LINEAR);
    glTexParameterf(GL_TEXTURE_2D,GL_LINEAR);
//  glBindTexture(GL_TEXTURE_2D,texId[index]);
}

int main(int argc,char* args[])
{
    std::vector<SDL_Surface*> image;
    GLfloat rotation = 0.0f;

    bool quit = false;

    if (init() == false)
    {
        return 1;
    }

    const char* ImageNames[6] = { "res/KGU-logo.jpg","res/Me.jpeg","res/beach-1838501.jpg","res/bench-560435.jpg","res/wolf-1341881_1920.jpg","res/spring-bird-2295434.jpg" };
    for (int i = 0; i < 6; i++) {
        SDL_RWops* tmprwop = SDL_RWFromFile(ImageNames[i],"rb");
        SDL_Surface* tmpimg = IMG_LoadJPG_RW(tmprwop);
        image.push_back(tmpimg);
    }

    for(int i=0;i<6;i++)
        glGenTextures(1,&texId[i]);

    /*SDL_Rect position;
    position.x = 1;
    position.y = 1;
    position.h = 10;
    position.w = 10;
    SDL_RenderClear(renderer);
    SDL_RenderCopy(renderer,SDL_CreateTextureFromSurface(renderer,image.at(0)),NULL,&position);
    SDL_RenderPresent(renderer);*/

    /****** Main Game Loop ******/
    while (quit == false)
    {

        /****** Get Most Current Time ******/
        var::frame_start_time = SDL_GetTicks();

        /****** Draw Rectangle ******/
        glClear(GL_COLOR_BUFFER_BIT | GL_DEpth_BUFFER_BIT);
        glLoadIdentity();
        glTranslatef(0.0f,0.0f,-6.0f);
        glRotatef(rotation,1.0f,0.0f);


        RenewTexture(image.at(0),0);
        glBegin(GL_QUADS);
        glTexCoord2f(0.0,0.0); glVertex2f(0,0);
        glTexCoord2f(1.0,0.0); glVertex2f(550,1.0); glVertex2f(550,550);
        glTexCoord2f(0.0,1.0); glVertex2f(0,550);
        glEnd();

        RenewTexture(image.at(0),0);
        glBegin(GL_QUADS);
        /* Cube Top */
        //glColor4f(1.0f,1.0f);
        glVertex3f(-1.0f,-1.0f);
        glVertex3f(1.0f,1.0f);
        RenewTexture(image.at(1),1);
        /* Cube Bottom */
        //glColor4f(1.0f,0.5f,-1.0f,1.0f);

        RenewTexture(image.at(2),2);
        /* Cube Front */
        //glColor4f(0.0f,1.0f);
        glVertex3f(1.0f,1.0f);

        RenewTexture(image.at(3),3);
        /* Cube Back */
        //glColor4f(0.0f,-1.0f);
        glVertex3f(-1.0f,-1.0f);

        RenewTexture(image.at(4),4);
        /* Cube Left Side */
        //glColor4f(0.5f,-1.0f);

        RenewTexture(image.at(5),5);
        /* Cube Right Side */
        //glColor4f(0.15f,0.25f,0.75f,-1.0f);

        glEnd();

        rotation -= 0.5f;
        /****** Check for Key & System input ******/
        while (SDL_PollEvent(&event))
        {

            /******  Application Quit Event ******/
            if (event.type == SDL_QUIT)
            {
                quit = true;
            }
        }

        /****** Update Screen And Frame Counts ******/
        SDL_GL_SwapWindow(win);
        var::frame_count++;
        var::frame_current_time = SDL_GetTicks();

        /****** Frame Rate Handle ******/
        if ((var::frame_current_time - var::frame_start_time) < (1000 / 60))
        {
            var::frame_count = 0;
            SDL_Delay((1000 / 60) - (var::frame_current_time - var::frame_start_time));
        }
    }
    clean_up();
    return 0;
}

修改

通过将所有glTexCoord3f()更改为glTexCoord2f()来解决，并且有效...我的错：D

此外，我误解了glEnable(GL_TEXTURE_3D)，因此更改为glEnable(GL_TEXTURE_2D)，并通过错误检查功能检查了所有opengl错误

void errorcheck() {
    int errormsg;
    if ((errormsg = glGetError()) != GL_NO_ERROR)
    {
        std::cout << "glerror: " << errormsg << std::endl;
        exit(0);
    }

}