为什么当我移动物体并且物体在某些点旋转时旋转变慢？

在某些地方，物体旋转速度变慢甚至非常慢，然后当我移动到其他地方时，物体旋转速度恢复到正确的速度 .

剧本：

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class ChangeScale : MonoBehaviour
{
    //Scaling change
    public GameObject objectToScale;
    public float duration = 1f;
    public Vector3 minSize;
    public Vector3 maxSize;

    private bool scaleUp = false;
    private Coroutine scaleCoroutine;

    //Colors change
    public Color startColor;
    public Color endColor;
    public float colorDuration; // duration in seconds

    //Lights change
    public DimLights dimlights;
    private Coroutine lightCoroutine;

    //Rotate change
    public float rotationSpeed;
    public float rotationDuration;
    private float x;

    private void Start()
    {
        //startColor = GetComponent<Renderer>().material.color;
        endColor = Color.green;
        objectToScale.transform.localScale = minSize;
    }

    // Use this for initialization
    void Update()
    {
        //Scaling
        if (Input.GetKeyDown(KeyCode.F))
        {
            //Flip the scale direction when F key is pressed
            scaleUp = !scaleUp;

            //Stop old coroutine
            if (scaleCoroutine != null)
                StopCoroutine(scaleCoroutine);

            if (lightCoroutine != null)
                StopCoroutine(lightCoroutine);


            //Scale  up
            if (scaleUp)
            {
                //Start new coroutine and scale up within 5 seconds and return the coroutine reference
                scaleCoroutine = StartCoroutine(scaleOverTime(objectToScale, maxSize, duration));
                lightCoroutine = StartCoroutine(dimlights.dimLightOverTime(1, duration)); ;
            }

            //Scale Down
            else
            {
                //Start new coroutine and scale up within 5 seconds and return the coroutine reference
                scaleCoroutine = StartCoroutine(scaleOverTime(objectToScale, minSize, duration));
                lightCoroutine = StartCoroutine(dimlights.dimLightOverTime(0, duration)); ;
            }
        }

        //Change color
        if (Input.GetKeyDown(KeyCode.C))
        {
            StartCoroutine(ChangeColor());
        }

        x += Time.deltaTime * 1000;
        objectToScale.transform.rotation = Quaternion.Euler(0, 0, x);
    }

    IEnumerator scaleOverTime(GameObject targetObj, Vector3 toScale, float duration)
    {
        float counter = 0;

        //Get the current scale of the object to be scaled
        Vector3 startScaleSize = targetObj.transform.localScale;

        while (counter < duration)
        {
            counter += Time.deltaTime;
            targetObj.transform.localScale = Vector3.Lerp(startScaleSize, toScale, counter / duration);
            yield return null;
        }
    }

    IEnumerator ChangeColor()
    {
        float t = 0;

        while (t < colorDuration)
        {
            t += Time.deltaTime;
            GetComponent<Renderer>().material.color = Color.Lerp(startColor, endColor, t / colorDuration);
            yield return null;
        }
    }
}

这是我用于轮换的Update中的两行：

x += Time.deltaTime * 1000;
objectToScale.transform.rotation = Quaternion.Euler(0, 0, x);

该脚本附加到MainCamera，MainCamera是RigidBodyFPSController的子项（1）

我正在旋转的对象是NAVI，而NAVI是MainCamera的孩子 .

当我移动相机并且NAVI在某些区域以恒定速度旋转时，似乎旋转速度变慢并且在其他地方旋转速度快速且平滑 .

我不确定为什么它变得越来越慢，例如当我在门附近移动物体时 .

这是我录制的一个小视频片段，显示了我的意思：

Rotation video clip

这是一个截图，其中对象位于门前并且旋转缓慢：

但是当我将相机移动到这个位置时，物体会快速平滑地旋转，因为它应该是：