After graduation, he worked as a cel animator at Quantum Studios in Hong Kong. For a while he was creating hand-drawn animated productions for TV commercials in Toronto. In 2004, he spent half a year in Hong Kong where he directed animation for the DreamWorks Animation's televisions series
Father of the Pride, which was subcontracted to a Hong Kong company. His first book,
Brownie and Sesame was released in 2004, followed by
Piccolo in 2005 and
Grandma Long Ears in 2006. Due to his contributions to the
Shrek films,
Forbes listed Hui in 2010 among 25 notable Chinese-Americans in the business field. Hui said of himself that he is a "Hong Konger living in America," being "sandwiched between Western and Chinese cultures." After arriving to the United States, beside learning a new language, Hui had most troubles adapting to a different lifestyle: "Hong Kong is a busy place. But the place I lived, Silicon Valley, was so quiet that if you see someone walking down the street at night, you should feel worried." Although, he prefers living in Hong Kong, Hui prefers working in the United States: "They make sure you have enough time to do your job well. I feel attached to that country because it is where I learned all my skills." ==Filmography==