Unity Shader当玩家触摸冰块时，融冰脚本不起作用

如何解决Unity Shader当玩家触摸冰块时，融冰脚本不起作用

我是菜鸟，正在研究制作VR内容的统一性。我想在玩家触摸冰块对象时实现冰块融化功能，但是它没有用，所以我问了一个问题。

首先，我使用在Asset Store商店购买的冰着色器的脚本（此脚本在运行场景时会冻结），并附加OnTriggerEnter并调用UpdateMaterialUnFreeze（）；功能，使冰块在玩家触摸时再次融化，但不起作用。 Sphere碰撞器也连接到控制器和冰上。这是第一次，因此很难使它变得容易。你能帮助我吗？预先谢谢你。

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

public class FreezeBehaviour : MonoBehaviour
{

  public Material iceMaterial;
  public bool isFrozen;
  public float FreezeTime = 5;

  private Material oldMaterial;
  private bool isCanSetMaterial = true;
  private float cutoff;
  private FrozenState frozenState = FrozenState.Default;
  // Use this for initialization
  private void Start()
  {
    if(iceMaterial == null) Debug.Log("FreezeBehaviour can't fing Ice material");
    oldMaterial = GetComponent<Renderer>().materials[0];
    if (iceMaterial!=null)
      iceMaterial.SetFloat("_Cutoff",0);
  }

  // Update is called once per frame
  private void Update()
  {
        if (isFrozen) { 
            frozenState = FrozenState.LoadMaterial;
            Debug.Log("isFrozen");
        }

        else if (frozenState != FrozenState.Default) { 
            frozenState = FrozenState.UpdateMaterialUnFreeze;
            Debug.Log("Defalut");
        }
      if (frozenState == FrozenState.LoadMaterial) {
            LoadMaterial();
            Debug.Log("LoadMaterial");
        }
      
      
        if (frozenState == FrozenState.UpdateMaterialFreeze) { 
            UpdateMaterialFreeze();
            Debug.Log("alFreeze");
        }
   // 

       
  }


    void OnTriggerEnter(Collider other)
    {
        if (other.CompareTag("scene"))
        {
            

            if (frozenState == FrozenState.UpdateMaterialFreeze)
            {

               UpdateMaterialUnFreeze();
                Debug.Log("UnFreeze");
            }
           ;
        }
    }

    private void LoadMaterial()
  {
    isCanSetMaterial = false;
    var materials = new Material[2];
    materials[0] = oldMaterial;
    materials[1] = iceMaterial;
    GetComponent<Renderer>().materials = materials;
    frozenState = FrozenState.UpdateMaterialFreeze;
  }

  private void UpdateMaterialFreeze()
  {
    var time = Time.deltaTime / FreezeTime;
    if (cutoff + time <= 1) {
      cutoff += time;
      iceMaterial.SetFloat("_Cutoff",cutoff);
    }
    else frozenState = FrozenState.Frozen;
  }

  private void UpdateMaterialUnFreeze()
  {
    var time = Time.deltaTime / FreezeTime;
    if (cutoff-time > 0) {
      cutoff -= time;
      iceMaterial.SetFloat("_Cutoff",cutoff);
    }
    else frozenState = FrozenState.Default;
  }

  enum FrozenState
  {
    Default,LoadMaterial,UpdateMaterialFreeze,UpdateMaterialUnFreeze,Frozen
  }

  
  
}

ice object inspector