Because they come along only once every four years, exhibitions that showcase works by the entire faculty of the UW-Madison art department are always an event. But the 2012 faculty art quadrennial offers new surroundings, new faces and new sensibilities as well. Arcing through many of the old and new galleries at the Chazen Museum of Art, “Compendium 2012” will feature works by 34 current faculty and staff, and 12 emeritus faculty.