In celebration of the Luminale 2012, in Frankfurt Germany, Kollision , together with Martin Professional , and light designers Katja Winkelmann and Jochen Schröder, developed an interactive media facade, Photophore (2012). Photophore is a five storey veil of light situated along the river Main at the unique Seven Swans multi-functional restaurant, bar, office and hotel. Here, in the heart of Frankfurt, everyone is invited to take part in the festival of light. By scanning a QR code mounted on the facade the users are brought to a website [kollision.dk/public/wind/], which allows them to interact with the veil. The website invites you to swipe your finger across the touch screen of your smart phone, which will make the veil of light act as if it is being pushed, pulled, and thrown in response to input from the people on the street. The texture and dynamics of the veil adds a tangible materiality to the Seven Swans and gives the unique building a both ethereal and vivid expression when darkness falls.