3D JS Heightmap

http://blogs.msdn.com/b/eternalcoding/archive/2013/08/06/babylon-js-creating-a-convincing-world-for-your-game-with-custom-shaders-height-maps-and-skyboxes.aspx

http://creativejs.com/tag/heightmap/

http://www.smartjava.org/content/threejs-render-real-world-terrain-heightmap-using-open-data