Nissan is premier sponsor of Canada Day fireworks in Halifax, Ottawa, Toronto and Vancouver. The automaker is using the sponsorship to talk about its new 2013 Altima with a 3D projection light show on water. The 3D Water Screen Projection technology uses a submerged nozzle that sprays a thin fan of water about 120' wide by 60' tall. The screen works by diffusing light, and works by rear projecting towards the audience.