n class="citerefentry"><span class="refentrytitle">glMapBufferRange</span></span></a>
                                                after the barrier will reflect data written by shaders prior to the barrier.
                        Additionally, writes via these commands issued after the barrier will
                        wait on the completion of any shader writes to the same memory
                        initiated prior to the barrier.
                    </p>
            </dd>
            <dt>
    