sampler2DShadow <var class="pdparam">sampler</var>, </td>
            </tr>
            <tr>
              <td> </td>
              <td>vec3 <var class="pdparam">P</var>, </td>
            </tr>
            <tr>
              <td> </td>
              <td>[float <var class="pdparam">bias</var>]<code>)</code>;</td>
            </tr>
          </table>
          <div class="funcprototype-spacer"> </div>
          <table style="border: 0; cellspacing: 0; cellpadding: 0;" class="funcprototype-table">
        