XRCamera3D
继承： Camera3D < Node3D < Node < Object
A camera node with a few overrules for AR/VR applied, such as location tracking.
描述
This is a helper spatial node for our camera; note that, if stereoscopic rendering is applicable (VR-HMD), most of the camera properties are ignored, as the HMD information overrides them. The only properties that can be trusted are the near and far planes.
The position and orientation of this node is automatically updated by the XR Server to represent the location of the HMD if such tracking is available and can thus be used by game logic. Note that, in contrast to the XR Controller, the render thread has access to the most up-to-date tracking data of the HMD and the location of the XRCamera3D can lag a few milliseconds behind what is used for rendering as a result.
本方法通常需要用户覆盖才能生效。
本方法无副作用，不会修改该实例的任何成员变量。
本方法除了能接受在此处描述的参数外，还能够继续接受任意数量的参数。
本方法用于构造某个类型。
调用本方法无需实例，可直接使用类名进行调用。
本方法描述的是使用本类型作为左操作数的有效运算符。
这个值是由下列位标志构成位掩码的整数。
无返回值。