		Therefore only the barrier bits <code class="constant">GL_ATOMIC_COUNTER_BARRIER_BIT</code>, <code class="constant">GL_FRAMEBUFFER_BARRIER_BIT</code>,
				<code class="constant">GL_SHADER_IMAGE_ACCESS_BARRIER_BIT</code>, <code class="constant">GL_SHADER_STORAGE_BARRIER_BIT</code>,
				<code class="constant">GL_TEXTURE_FETCH_BARRIER_BIT</code>, or <code class="constant">GL_UNIFORM_BARRIER_BIT</code> are supported.
				</p>
            </li>
          </ul>
        </div>
        <p>

			When <em class="par