【Unity】揺れる テキスト

Textの頂点をランダムに移動させて揺れてるようなテキストを実現してみました

Textの頂点はシェーダー側では揺らせないので、スクリプトで実現しています

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

[RequireComponent(typeof(Text))]
public class TextShake : BaseMeshEffect
{
    [SerializeField, Range(0, 2f)]
    private float _power;
    [SerializeField, Range(0, 0.1f)]
    private float _updateInterval;
     
    private UIVertex _vertex;
    private Vector3 _vector3;
    private Vector3 _vector3Offset;
    private readonly List<UIVertex> _vertexList = new List<UIVertex>();
    private float _time;
 
    private void Update()
    {
        if (_updateInterval <= 0f)
        {
            graphic.SetVerticesDirty();
            return;
        }
        
        if (_time < _updateInterval)
        {
            _time += Time.deltaTime;
            return;
        }

        _time -= _updateInterval;
        graphic.SetVerticesDirty();
    }
 
    public override void ModifyMesh(VertexHelper vertex)
    {
        _vertexList.Clear();
        vertex.GetUIVertexStream(_vertexList);
        var count = _vertexList.Count;

        for (var i = 0; i < count; i += 6)
        {
            SetOffset();
            SetPosition(i);
            SetPosition(i + 5);
            
            SetOffset();
            SetPosition(i + 2);
            SetPosition(i + 3);
            
            SetOffset();
            SetPosition(i + 1);
            
            SetOffset();
            SetPosition(i + 4);
        }

        vertex.Clear();
        vertex.AddUIVertexTriangleStream(_vertexList);
    }
 
    private void SetOffset()
    {
        _vector3Offset.x = Random.Range(-_power, _power);
        _vector3Offset.y = Random.Range(-_power, _power);
    }
     
    private void SetPosition(int index)
    {
        _vertex = _vertexList[index];
        _vector3 = _vertex.position + _vector3Offset;
        _vertex.position = _vector3;
        _vertexList[index] = _vertex;
    }
}