Imagine a Silent Hunter game with this water...

[mookiemookie]

http://mashable.com/2013/04/25/video-water-games/

Although graphics in 3D computer games has gone really far in the last decade or so, the water in most of them does not look very real — especially when you throw a couple of solid objects into it.

Now, a new fluid simulation algorithm, called "Position Based Fluids" (PBD) makes it look easy, with water bouncing off objects in a startlingly realistic fashion.

It's almost hypnotic...