Get a lot of high power projectors, creating 3d models of the building, animate parts of the 3d models, and project it into the 2d plane of the building. See t

Get a lot of high power projectors, creating 3d models of the building, animate parts of the 3d models, and project it into the 2d plane of the building. See this video for additional reference. http://www.youtube.com/watch?v=jDHfa03XzaM http://www.youtube.com/watch?v=jDHfa03XzaM