He accomplished this by giving the stage a greater feeling of depth, which he did by cutting up some of the rigid background scenery and placing it at various angles and distances from the audience.
他通过给舞台一种更有深度的感觉来做到这一点，他裁剪了一些死板的背景风景，并把它放在距离观众不同的角度和距离。
So by using a orthoprojection and placing your objects on layers at various depth you can generate a depth buffer with data usefull for deferred lighting.
所以利用正交投影和放置你的对象层在不同深度可以生成数据有用的递延照明深度缓冲区。
Placing a diffractive optical element(DOE) on the incident laser beam to improve the depth of focus, the DOE'S aperture is variable.
在入射光束的孔径受限制的情况下，利用衍射光学元件来增加激光束的焦深。
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