Sometimes not seeing a threat can be worse than actually seeing it. Even so, at a certain point it will change into becoming a more effective scare if the audience gets to see just what they feared. To be able to affect the audience in the way intended by the producer, it is important to understand the effects of timing when using different methods such as camerawork, for presenting a scene and current targets. In this paper we look into how the timing of revealing threats in horror contents affects the level of fear perceived by the audience.

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　In order to reproduce a sculpture from a lumber in wood carving,it is often practiced to transfer the drawing to the surface of the lumber and to cut out the outline in the shape of a silhouette.While the shape to be carved becomes clear to a certain extent,the guiding standard such as the drawing on the flat surface of the lumber will be carved and inevitably lost.So beginners are not be able to proceed from a certain stage in many cases.In this research,3 D data is viewed by free position and angle,and the chamfering workｓof cutting a corner or edge of wood to create a plane is simulated on a computer.Then the process up to the stage which is the rough shape of the reproduction is considered in advance.The author also refers to the accuracy and efficiency of the wood carving based on the volume ratio of the original image and the model cut from the lumber.

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[in Japanese]

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