ideration is narrowed so that only reads/writes of prior fragment shaders that
				are invoked for a smaller region of the framebuffer will be completed/reflected prior to subsequent reads/write of
				following fragment shaders. The size of the region is implementation dependent and may be as small as one framebuffer
				pixel.
				</p>
            </li>
            <li class="listitem">
              <p>The barrier only applies to memory transactions that may be read by or written by a fragment shader.
		