Actors, weapons and props marked with reflective dots move around the stage while the camera grid tracks only the dots.

演员武器和道具上都用有反射的点来标记当他们移动时摄像机网格只跟拍点的移动。

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Actors on whom the animated characters are based rehearse their lines over and over again with dozens of reflective dots stuck over their faces and bodies, while hundreds of infrared cameras record their every twitch.

ECONOMIST: Animation takes on a whole new reality