 At the same time another technique called origami animation was also developed by Yu Zheguang (虞哲光) in 1960, in the film "A Clever Duckling".Also in 1960 the first set of animation film exhibitions were held in 6 major cities including Shanghai and Beijing, followed by exhibitions in Hong Kong in 1962 and Macau in 1963.In the early 1960s, the Shanghai Animation Film Studio also created ink wash animation, the first of its kind in the world.