Next Limit Technologies is a computer software company headquartered in Madrid, Spain. Founded in 1998 the firm researches and develops innovative technologies in the field of digital simulation and visualization. The company's projects include: Maxwell Render (a light simulator and physically correct render motor), XFlow (engineering software for fluid and wind tunnel simulation), and RealFlow (a dynamics and fluid simulator for film production). RealFlow has been used in the production of films such as: The Lord of the Rings: The Return of the King, 300, Charlie and the Chocolate Factory, Robots, The Girl with the Dragon Tattoo, and others.
What is Realflow?
RealFlow is a fluid and dynamics simulator for the 3D industry, currently at version 2014, the stand-alone application can be used to simulate fluids, water surfaces, fluid-solid interactions, rigid bodies, soft bodies and meshes. They were awarded a 2007 Technical Achievement Award from the Academy of Motion Picture Arts and Sciences for the creation of the RealFlow software application.
A complete list of feature films, TV series and commercials to use RealFlow can be found here