Twenty years ago, Pixar Animation Studios released a shading language, an interface, and a specification called RenderMan, a collection of "tools and systems that would let thousands of people create pictures of whatever they chose to design, "as Pixar's Ed Catmull put it then. And indeed, studios around the world have used RenderMan to create hundreds of films, many of which have won Oscars for visual effects and for animation. In 1993, Catmull, Loren Carpenter, Rob Cook, Thomas Porter, Pat Hanrahan, AnthonyA. Apodaca, and Darwyn Peachey received a scientific and engineering award from the Academy for the development of RenderMan software. In 2001, Catmull, Cook, and Carpenter received an Academy Award of Merit for "significant advancements to the field of motion-picture rendering as exemplified in Pixar's RenderMan. " Catmull has also received Academy Awards for subdivision surfaces and digital image compositing.
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