
    <tr><td class="paramname">viewport</td><td>Specifies the current viewport </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Return the computed window coordinates. </dd></dl>
<dl class="tparams"><dt>Template Parameters</dt><dd>
  <table class="tparams">
    <tr><td class="paramname">T</td><td>Native type used for the computation. Currently supported: half (not recommended), float or double. </td></tr>
    <tr><td class="paramname">U</td><td>Currently supported: