Creating a realistic computer simulation of how light suffuses a room is crucial not just for animated movies like “Toy Story” or “Cars”. Special computing methods should ensure this, but they require great effort. Computer scientists from Saarbrücken have now developed a novel approach that turned out to be so promising, that it was adopted by companies in record time—among others by Pixar, well-known in the movie industry for its computer animation, and now a subsidiary of the Walt Disney Company.
The realistic depiction of light transport in a room is important within the production of computer-generated movies. If it does not work, the three-dimensional impression is rapidly lost. Hence, the movie industry’s digital light experts use special computing methods, requiring enormous computational power and therefore raising production costs.
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