具有深度附件的FrameBuffers不起作用

Question

今天我正在使用FrameBuffers，以及类似的东西。我确实做到了，而且它正在发挥作用。但是一个小问题：GL_COLOR_ATTACHMENT0有效，但GL_DEPTH_ATTACHMENT没有。代码是一样的，我只是改变附件模式。我有深度缓冲区作为渲染缓冲区，如果它不在帧缓冲区中（渲染到没有深度缓冲区的纹理，只是图像）。但是有了Depth att。我禁用它。代码：

public void setAsFramebuffer(int num,int att, boolean b) {  
    if (frameBuffer == 0) frameBuffer = GL30.glGenFramebuffers();           
    GL30.glBindFramebuffer(GL30.GL_FRAMEBUFFER, frameBuffer);       
    GL30.glFramebufferTexture2D(GL30.GL_FRAMEBUFFER, att, GL11.GL_TEXTURE_2D, id[num], 0);

    if (att == GL30.GL_DEPTH_ATTACHMENT) { //TODO: add pen mode
        GL20.glDrawBuffers(GL11.GL_NONE);
    } else {
        GL20.glDrawBuffers(att);
    }

    if (GL30.glCheckFramebufferStatus(GL30.GL_FRAMEBUFFER) != GL30.GL_FRAMEBUFFER_COMPLETE) {
        String msg;
        boolean crash = true;
        switch (GL30.glCheckFramebufferStatus(GL30.GL_FRAMEBUFFER)) {
            case GL30.GL_FRAMEBUFFER_UNDEFINED                      : msg = "The default framebuffer does not exist.";
            case GL30.GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT          : msg = "Some of framebuffers attachment points are framebuffer incomplete.";
            case GL30.GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT  : msg = "Framebuffer dosent have any attached images.";
            case GL30.GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER         : msg = "Value of GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE is GL_NONE for any color attachment point(s) named by GL_DRAW_BUFFERi.";
            case GL30.GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER         : msg = "Value of GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE is GL_NONE for the color attachment point named by GL_READ_BUFFER";
            case GL30.GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE         : msg = "GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE";
            case GL30.GL_RENDERBUFFER_SAMPLES                       : msg = "GL_RENDERBUFFER_SAMPLES ";
            case GL32.GL_FRAMEBUFFER_INCOMPLETE_LAYER_TARGETS       : msg = "GL_FRAMEBUFFER_INCOMPLETE_LAYER_TARGETS";

            case GL30.GL_FRAMEBUFFER_UNSUPPORTED                    : msg = "Framebuffers not supported by Grahpics card."; crash = false;
            default: msg = "unknown! Maybe GL error? "; crash = true; CoreEngine.checkForGLErrors();
        }
        System.out.println("Framebuffer error! Someting is bad happened here...Error: "+msg);
        if (crash) System.exit(0);
    }

    if(b) this.setupDepthRenderBuffer();

    GL30.glBindFramebuffer(GL30.GL_FRAMEBUFFER, 0);
}

public void setupDepthRenderBuffer() {
    renderBuffer = GL30.glGenRenderbuffers();
    GL30.glBindRenderbuffer(GL30.GL_RENDERBUFFER, renderBuffer);
    GL30.glRenderbufferStorage(GL30.GL_RENDERBUFFER, GL11.GL_DEPTH_COMPONENT, width[0], height[0]);
    GL30.glFramebufferRenderbuffer(GL30.GL_FRAMEBUFFER, GL30.GL_DEPTH_ATTACHMENT, GL30.GL_RENDERBUFFER, renderBuffer);
}

Dept att。还需要颜色。或者我搞砸了什么？

哦，它说的是它未知的错误。我没有在文档中看到任何其他内容，只是错误。

纹理初始化：

public void loadTexture(int glRepeat, int filter, int glTexture2d,
        int width, int height, ByteBuffer buffer) {
    this.width[0] = width;
    this.height[0] = height;

    if(buffer == EMPTRY_PICTURE) buffer = Util.createByteBuffer(width*height*4);
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, glRepeat);
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, glRepeat);

    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, filter);
    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, filter);

    glTexImage2D(glTexture2d, 0, GL_RGBA8, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, buffer);

    if (filter == GL_NEAREST_MIPMAP_NEAREST ||
            filter == GL_NEAREST_MIPMAP_LINEAR ||
            filter == GL_LINEAR_MIPMAP_NEAREST ||
            filter == GL_LINEAR_MIPMAP_LINEAR) 
    {
        GL30.glGenerateMipmap(GL_TEXTURE_2D);
        float ani;
        ani = glGetFloat(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT);
        glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT,Math.min(ani,8f));             
    }
}