While Disney had made the film "Tron"—which extensively mixed live-action, traditional animation, and CGI—in 1982, and introduced the CAPS system to enhance traditional animation in 1990's "The Rescuers Down Under", a completely computer-animated feature film had yet to be made. In 1995, Disney partnered with Pixar to produce "Toy Story", the first feature film made entirely using CGI. The film's success was so great that other studios looked into producing their own CGI films. Computer-animated films turned out to be wildly popular, and animated films returned the highest gross margins (around 52%) of all film genres in the 2004-2013 timeframe.