UGUI研究院之Text文本渐变（十一）

这是我无意间逛国外论坛发现的，感觉还可以就分享给大家。原文 http://pastebin.com/dJabCfWn





如下图所示，用法和UGUI自带的outline和shadow一样，可以同时使用。





代码在这里了。我加了个判断，它原来的有越界的隐患。

C#

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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; if(count>0){ float bottomY = vertexList[0].position.y; float topY = vertexList[0].position.y; for (int i = 1; i < count; i++) { float y = vertexList[i].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[i]; uiVertex.color = Color32.Lerp(bottomColor, topColor, (uiVertex.position.y - bottomY) / uiElementHeight); vertexList[i] = uiVertex; } } } }

我也在测试中，欢迎大家提意见。

如果你的项目升级到了5.2 请使用下面的代码，感谢代码的提供者。@獨立遊戲開發熊

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using UnityEngine; using System.Collections; using System.Collections.Generic; using UnityEngine.UI; [AddComponentMenu("UI/Effects/Gradient")] public class Gradient : BaseMeshEffect { [SerializeField] private Color32 topColor = Color.white; [SerializeField] private Color32 bottomColor = Color.black; public override void ModifyMesh (Mesh mesh) { if (!IsActive ()) { return; } Vector3[] vertexList = mesh.vertices; int count = mesh.vertexCount; if (count > 0) { float bottomY = vertexList [0].y; float topY = vertexList [0].y; for (int i = 1; i < count; i++) { float y = vertexList [i].y; if (y > topY) { topY = y; } else if (y < bottomY) { bottomY = y; } } List<Color32> colors = new List<Color32> (); float uiElementHeight = topY - bottomY; for (int i = 0; i < count; i++) { colors.Add (Color32.Lerp (bottomColor, topColor, (vertexList [i].y - bottomY) / uiElementHeight)); } mesh.SetColors (colors); } } }