UGUI之Text镜像效果

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UGUI之Text镜像效果

先上效果图：
这里写图片描述

脚本Mirror直接挂在Text下，distance是镜像距离

Mirror脚本如下：

using UnityEngine;using System.Collections;using UnityEngine.UI;using System;using System.Collections.Generic;[AddComponentMenu("UI/Effects/Mirror")]public class Mirror : BaseMeshEffect{    //距离，限制范围0-30    [Range(0,30)]    public float distance;    public override void ModifyMesh(VertexHelper vh)    {        if (!IsActive() || vh.currentVertCount == 0)        {            return;        }        List<UIVertex> vertexs = new List<UIVertex>();        vh.GetUIVertexStream(vertexs);        UIVertex vt;        int count = vertexs.Count;        float miny = vertexs[0].position.y;        float maxy = vertexs[0].position.y;        for (int i = 1; i < count; i++)        {            if (vertexs[i].position.y < miny)            {                miny = vertexs[i].position.y;            }            else if (vertexs[i].position.y > maxy)            {                maxy = vertexs[i].position.y;            }        }        float uiElementHeight = maxy - miny;        float mirrorMinY = -maxy + 2 * miny - distance;        Color32 top = GetComponent<Text>().color;        Color32 bottom = new Color(top.r, top.g, top.b, 0);        for (int i = 0; i < count; i++)        {            vt = vertexs[i];            vertexs.Add(vt);            Vector3 v = vt.position;            v.y = -v.y + 2 * miny - distance;            vt.position = v;            //透明度效果            vt.color = Color32.Lerp(bottom, top, (vt.position.y - mirrorMinY) / uiElementHeight);            vertexs[i + count] = vt;        }        vh.Clear();        vh.AddUIVertexTriangleStream(vertexs);    }}

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