An interactive facade in Vienna

On the facade of the Uniqa Tower in Vienna (Austria), 160.000 led lights (making 40.000 pixels) have been applied. By programming these, a virtually unlimited number of patterns is achieveable. Surely, there are tons of other ways of making facades interactive (some more sophisticated than others), but to me this light installation by Holger Mader, Alexander Stublic and Heike Wiermann takes the geometrics of the building as a starting point, and builds a whole new set of virtual geometries based on the building as such.