Cairo Composite Manager is a versatile and extensible composite manager which uses cairo for rendering. Plugins can be used to add some cool effects to your desktop. It's capable of, but not limited to, rendering of drop shadows, setting window transparency, menu and window animations, and applying decorations.
Like Xcompmgr, it does not replace an existing window manager, which makes it ideal for users of lightweight window managers, like Openbox and Fluxbox, who seek a more elegant desktop.
Install Cairo Composite Manager in ubuntu
Open the terminal and run the following commands
sudo add-apt-repository ppa:shnatsel/staging
sudo apt-get update
sudo apt-get install cairo-compmgr