UGUI Text渐变效果实现（Gradient）

沐阳人 · 发表于 2015-11-26 17:46:21

UGUI Text渐变效果实现（Gradient）
UGUI自带两个字体效果--Outline 和 Shadow
而渐变效果实现木有，以下是社区中的实现，供参考使用：另外一个简单实现：

using UnityEngine;
using System.Collections;
using System.Collections.Generic;
using UnityEngine.UI;
[AddComponentMenu("UI/Effects/Gradient")]
public class Gradient : BaseVertexEffect {
[SerializeField]
private Color32 topColor = Color.white;
[SerializeField]
private Color32 bottomColor = Color.black;
public override void ModifyVertices(List<UIVertex> vertexList) {
if (!IsActive()) {
return;
}
int count = vertexList.Count;
float bottomY = vertexList[0].position.y;
float topY = vertexList[0].position.y;
for (int i = 1; i < count; i++) {
float y = vertexList.position.y;
if (y > topY) {
topY = y;
}
else if (y < bottomY) {
bottomY = y;
}
}
float uiElementHeight = topY - bottomY;
for (int i = 0; i < count; i++) {
UIVertex uiVertex = vertexList;
uiVertex.color = Color32.Lerp(bottomColor, topColor, (uiVertex.position.y - bottomY) / uiElementHeight);
vertexList = uiVertex;
}
}
}