So far the examples have picked objects using the default shape: an imaginary ray going from the viewer's eye position through the mouse pointer into infinity.

目前为止的例子都是使用缺省形状拣选对象：可以假想是一根从观察者眼睛的位置经过鼠标点至无穷远处的射线。

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Maintaining this number one position will be harder this year though, with Disney Infinity offering a similar toy-meets-video-game experience, and one that can leverage the family favorite Disney characters.

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