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1 / Stills from an animated short film called “Geri’s Game,” released by Pixar Animation Studios in 1997, which received an Academy Award in 1998. It was the first animated film to use subdivision surfaces, a mathematical technique based on wavelet compression. Wavelets allow computers to compress an image into a smaller data file. Subdivision surfaces do the reverse: They allow the computer to create a small data file that can be manipulated and then uncompressed to create lifelike images of something that never existed—in this case, an old man playing chess in the park. The top image shows the subdivision surface. The image below shows an actual frame from the movie. © 1997 Pixar. /



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