请问我在unity给车辆添加下面这个让车轮旋转的代码运行正常

public WheelCollider[] WheelCollider;

public Transform[] WheelTrans;

void Start()

{

}

void Update()

{

float vertical = Input.GetAxis("Vertical");

float horizontal = Input.GetAxis("Horizontal");

for (int i = 0; i < WheelCollider.Length; i++)

{

Vector3 pos;

Quaternion rotation;

WheelCollider[i].GetWorldPose(out pos, out rotation);

WheelTrans[i].position = pos;

WheelTrans[i].rotation = rotation;

}

}

}

但是添加这两句转向的代码，运行后车子就开始抖动了，这是什么原因

WheelCollider[0].steerAngle = horizontal * 30;

WheelCollider[1].steerAngle = horizontal * 30;