Finding Nemo takes place underwater. All sorts of representational practices had to be addressed when trying to adapt the digital environment to an underwater one.
In this paper, given at CESCG in May 2005, Aranha describes the challenges of modeling underwater scenes and generating accurate computer graphics of underwater environments. Since water is approximately 800 times denser than air, light acts differently and new rendering approaches are needed. He describes a system built to help overcome these limitations and generate more accurate simulations (and particularly lighting) of underwater spaces.
M. Aranha, Realistic Underwater Visualisation. CESCG, May 2005.
Founded in April 2000 by underwater filmmaker Michael Hanrahan, The Ocean Channel is a web portal to a wide range of underwater (and above water) ocean media. The Ocean Channel produces high quality content and serves as a distribution outlet for documentary productions. While it is not broadcast on television, the channel is modeled on this format; you can watch what you want, when you want, and for free. Much of the content is designed to be enjoyable and entertaining. But there is definitely an activist component to the site as well: a large emphasis is on spreading ocean knowledge and education to effect environmental change.