光位，指在三维空间中灯具所处的具体位置。其中包括，面光，耳光，台口柱光，脚光，台口顶光，顶排聚光，顶排泛光，天排光，地排光，侧桥光，流动光，侧光，（吊笼 台架）追光等。
这两位明星最初在拍摄电影时所获的报酬相较而言少得可怜，不过他们对于暮光系列电影已变得不可或缺。
Both stars were paid relatively little for their initial work on the films but they have become indispensable to the Twilight franchise.
当然，除非您是一位眼光挑剔的软件开发人员，希望编写您自己的程序！
Unless of course you are a picky software developer and want to write your own!
更新：回答一位读者的疑问，Lytro光场相机也能拍摄3d照片。
Update: To answer one reader's question: yes, the Lytro camera takes 3-d images.
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