@related: [[X3D]]

  * http://www.geoportail.fr/erreur3D.do?channelid=5062450&idDoc=5203761
  * http://support.google.com/maps/bin/answer.py?hl=en&answer=1630790# WebGl
  * http://www.webdesignertrends.com/2012/04/8-experiences-3d-webgl-html5/