ami.js/examples/viewers_quadview/viewers_quadview.html

<p align="center"> <img src="https://cloud.githubusercontent.com/assets/214063/23213764/78ade038-f90c-11e6-8208-4fcade5f3832.png" width="60%"> </p>

<div id="my-gui-container"></div>

<div class="visualizer">
    <div id="r0" class="renderer"></div>
    <div id="r1" class="renderer"></div>
    <div id="r2" class="renderer"></div>
    <div id="r3" class="renderer"></div>
</div>

<script type="text/javascript" src="https://cdn.rawgit.com/mrdoob/three.js/master/examples/js/loaders/STLLoader.js"></script>