3D animation is difficult, but combining 3D and real people is an even greater challenge. Just the task of matching together a conventionally filmed image, which is full of "noise," and the clean but rather wooden virtual image, takes a great deal of skill.
三Ｄ難，三Ｄ和真人的合成更難，光是充滿雜質的實拍畫面和純淨呆板的虛擬影像要如何「調」在一起，就是一門大學問。