       whose names are stored in the array <em class="parameter"><code>pipelines</code></em>. Unused names in <em class="parameter"><code>pipelines</code></em> are
            ignored, as is the name zero. After a program pipeline object is deleted, its name is again unused and it
            has no contents. If program pipeline object that is currently bound is deleted, the binding for that object reverts to
            zero and no program pipeline object becomes current.
        </p>
      </div>
      <d