所以我们用这个参数把场景结点从椭球中央上移50个单位。

So we place the scene node 50 units over the center of the ellipsoid with this parameter.

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我们希望，在为您的测试场景确定一些相关的参数时，您可以使用这些计算以及其他计算。

Hopefully, you can see how these and other calculations come into play when determining some of the parameters for your testing scenarios.

youdao

第二个参数是场景结点，指定受碰撞检测影响的对象，在我们的例子中就是相机。

The second parameter is the scene node, which is the object, which is affected by collision detection, in our case it is the camera.

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