Jim Kajiya is a pioneer in the field of computer graphics. He is perhaps best known for the development of the rendering equation. Kajiya received his PhD from the University of Utah in 1979, was a professor at Caltech from 1979 through 1994, and is currently a researcher at Microsoft Research. Wikipedia
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James T. Kajiya started his career as a hardware designer. In 1972, at Quad-Eight Electronics, a manufacturer of recording studio consoles, he designed automated mix-down equipment and SMPTE time-code synchronizers. In 1973, he joined the Evans and Suth research.microsoft.com/~kajiya/