Culling

剔除

The settings in this tab lets you remove hair from visibility - hair that will not be seen anyway when the frame is rendered or hair that will not influence the end result because its thickness has been set to 0. A deciding factor for culling is the position of the hair root segment and the direction in which it points.

这个选项卡中的设置可以让你移除毛发的可见性-毛发将不会被看到无论如何当框架渲染或毛发不会影响最终结果，因为它的厚度已经设置为0。剔除的一个决定因素是毛发根段的位置和它所指向的方向。

The following settings are available:

以下设置可供选择:

Backfacing Culling

背面剔除

Hair will be culled based on the angle of view.

毛发将根据视角进行剔除。

Off-Screen Culling

屏幕以外的剔除

Hair will be culled based on the roots visible in the given angle of view.

毛发将被剔除的基础上根据可见的在给定的角度。

Distance Clipping

距离剪辑

Hair will be culled based on the distance of the camera from the hair.

毛发将被剔除基于相机的距离从毛发。

Backfacing Start[0..180°]
End[0..180°]

背面开始[0. . 180 ° ]结束[0. . 180 ° ]

From the angle of view of the camera, hair whose root segments lie within the Backface Start and End values will be increasingly culled.

从摄像机的角度来看，毛发的根部位于后台开始和结束值之内，将逐渐被剔除。

Near Clip[-∞..+∞m]
Near Fade[0..+∞m]

接近剪辑[-∞ . . + ∞ m ]接近褪色[0. . + ∞ m ]

From the angle of view of the camera, hair that lies closer than the defined Near Clip distance will be reduced to a thickness of 0 within the defined Near Fade.

从摄像机的视角来看，比定义的近剪辑距离更近的毛发将在定义的近剪辑范围内减少到0的厚度。

Far Clip[-∞..+∞m]
Far Fade[0..+∞m]

Far Clip [-∞ . . + ∞ m ] Far Fade [0. . + ∞ m ]

From the angle of view of the camera, hair that lies beyond the defined Far Clip value will be reduced to a thickness of 0 within the defined Far Fade.

从摄像机的视角来看，超过定义的远剪值的毛发将减少到定义的远褪色范围内的0的厚度。

Off-Screen[0..+∞%]

离屏[0. . + ∞% ]

Hair that lies outside of the editor view will not be rendered, in accordance with the defined Off-Screen value.

位于编辑器视图之外的毛发不会根据定义的 Off-Screen 值进行渲染。

Let’s say the editor view has a resolution of 640 x 640 pixels, and an Off-Screen value of 10% (+/- 64 pixels). All hair whose roots lie farther left than 576 pixels and farther right than 704 pixels will be set to 0.

假设编辑器视图的分辨率为640 x 640像素，离屏值为10% (+/-64像素)。所有发根位于左边超过576像素和右边超过704像素的毛发将被设置为0。

The same principle applies to vertical pixels.

同样的原理也适用于垂直像素。