Resolume
Resolume Arena is Vj software but can also can output the color or brightness of your pixels to LED strips or other light fixtures via DMX. Beware rthat you need a hardware controller to covert you signal to DMX.
Resolume has great tutorials on their own site to get you started
Tutorials: Check out the explanation of the basics on the Resolume Website
Borrow a license for Resolume at the HKU Uitleen