Just curious, but I love the look.
Is there something similar to this for Ubuntu, when shutting down, or logging out, or even when the screen goes to sleep?
There is no such compiz plugin in existence, but if you have C++ skills, or know someone who can take a try at it, it would be relatively easy to write such a plugin or extend one of the existing plugins to produce this animation.
There is a similar animation for compiz in the git repository (I think it was part of "simple-animations"). It would have to be ported to C++ and then modified to work on login or logout.