dow coordinates using default near and far clip planes definition. </p>
<p>To change default near and far clip planes definition use GLM_FORCE_DEPTH_ZERO_TO_ONE.</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>Specifies the current modelview matrix </td></tr>
    <tr><td class="paramname">proj</td><td>Specifies the current projection matrix </td></tr>