Hi! Maybe somebody of you have an idea how to generate an underwater scene like this in maya?

amazing underwater scene

Actually I've done a simple nurbs plane, displaced by an ocean, with a dielectric material (ior 1.33) - with phyiscal sun and sky, rendered in mental ray.

the refrections looks nice, need a lot of compositing - but how, the hell (sorry could i push the scene, that it get that detail seen in the video above? (its done in 3dmax with the dreamscape plugin)

would be great, if we could discuss that thing and share our knowledge! thanks alot