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        </tr>
      </table>
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<p>Map the specified object coordinates (obj.x, obj.y, obj.z) into window coordinates. </p>
<p>The near and far clip planes correspond to z normalized device coordinates of -1 and +1 respectively. (OpenGL clip volume definition)</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">obj</td><td>Specify the object coordinates. </td></tr>
    <tr><td class="paramname">model</td><td>