Via WIRED"We worked with chemicals, paint, fluorescent dyes, smoke, liquids, CO2, flares, spin dishes, fluid dynamics, lighting and high speed photography to see how effective they might be," Trumbull told the moviemaking website. "It was a free-wheeling opportunity to explore, something that I have found extraordinarily hard to get in the movie business. Terry didn't have any preconceived ideas of what something should look like. We did things like pour milk through a funnel into a narrow trough and shoot it with a high-speed camera and folded lens, lighting it carefully and using a frame rate that would give the right kind of flow characteristics to look cosmic, galactic, huge and epic."
Fan of Douglas Trumbull? Not seen TREE OF LIFE yet? He gives you the Universe in this Clip.