"Since the waiting time required during the rendering process has been dramatically shorter in the last 10 years, I think that CGI animation has finally become practical. It is a fact that I processed the Steamboy work based on the assumption that the machine spec would be higher. In that context, young 3D animators have also gotten more skillful in recent years. But what I didn't expect is that the skills of traditional 2D animators have become worse, and notable young animators have not come out to the scene. This is a big issue for the industry."

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Although all studios are now moving towards digitalization, a foundation in which we draw pictures by hand hasn't changed, so I foresee that we will continue to keep it in the future. After all, we used the digital method based on a conception of expanding and advancing the expression of the traditional animation cel in Steamboy. The first goal of this project was to overcome limitations of camera angles caused by platforms. On that aspect, I won't go back to the traditional method. I hoped to combine the merits of the traditional method of cel animation with the merits of the new CGI method.

— Katsuhiro Otomo