通常目标是在照相机的位置而且位置已知。

Usually the target is the camera's position which known.

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染色的层级是依照目标相机的位置和目标点的距离。

The tinting levels are based on the position and ranges set in your Target Cameras.

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这两个平面垂直于相机的方向，并且由相机的位置来确定。

The planes are laid out perpendicular to the Camera's direction and are measured from the its position.

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