Install Compiz On The Unity Desktop On Ubuntu 12.04 (Precise Pangolin)
This tutorial shows how you can configure Compiz on an Ubuntu
Linux 12.04 (Precise Pangolin) Unity desktop (the system must have a
graphics card – I’m using an NVIDIA GeForce 8200 here). With Compiz
you can use beautiful 3D effects like wobbly windows or a
desktop cube on your desktop. Ubuntu (Unity 3D) must be selected as your desktop environment.