ookAt.xml</a></p>
<p >The formula given by khronos is wrong ! The cross-product of two unit vectors is not normalized.</p>
<p >See <a href="https://stackoverflow.com/questions/30409318/lookat-matrix-distorts-when-looking-up-or-down">https://stackoverflow.com/questions/30409318/lookat-matrix-distorts-when-looking-up-or-down</a></p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">eye</td><td>eye position. </td></tr>
    <tr><td class="paramname">center</td><td