this was on the frontpage already a while ago, cant find the HN discussion link but this was the linked content: http://metaphysicaldeveloper.wordpress.com/2013/04/23/webgl-...

Its looks nice and all, but these kind of WebGL demos arent all that impressive anymore now that we have seen things like the unreal engine running in the browser. http://www.unrealengine.com/html5/

There isnt really alot you cannot do with WebGL today. If i showed you this as a compiled C++ demo, most probably wouldnt be impressed.