The techniques described in the present invention allow the audience to perceive that an actor moves from one place to another during a stage performance. In addition, the above techniques are for appearing on the stage floor of an actor/exiting on the stage floor, or appearing as a stage backdrop of an image exactly resembling an actor/exit on the stage backdrop. The techniques relate to the interaction between an actor and an object/prop during a stage performance, or between an actor and an object image/prop image, and/or between an actor image and an object/prop, or between an actor image and an object image/prop image It is related to interaction.
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