unity3dText倒影效果

本文介绍了一个Unity中自定义UI效果——MirrorText组件的实现方式,该组件能够为UI文本添加镜像反射效果,并通过调整距离参数来改变反射的位置。文中详细解释了如何获取UI顶点数据,计算文本高度,以及如何根据这些信息创建镜像并应用渐变透明度。

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img_fbd8d654c202fcf71f64bb2468236b56.png
测试.png
using UnityEngine;
using UnityEngine.UI;
using System.Collections.Generic;

[AddComponentMenu("UI/Effects/MirrorText")]
public class MirrorText : 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);
    }
}
Unity3D UGUI 专用文字特效插件 Text Effects 1.15 UI Text Effects are a set of effects for the standard Unity UI (uGUI) Text. - All script and shader sources included! - Extremely easy to use - just choose the effect from the component menu, and it&#39;s applied. - Add fancy titles, custom text appearance, mix multiple effects. - Rich Text support. - Mobile platform support. 12 extremely valuable effects: - Better Outline: a more continuous outline than the standard one. - Gradient Color: global/local, vertical/horizontal, override/additive/multiply. - Depth Effect: add thickness to text. - Soft Shadow: blurry shadow. - Outer Bevel: add outer lit and shaded edges. - Skew Effect: add horizontal+vertical transformations and perspective. - Curve Effect: bend or distort text vertically. - Character Spacing: increase or decrease the distance between individual characters. - Limit Visible Characters: hide characters, make a typewriter. - Overlay Texture: add an image overlay, local/global, override/additive/multiply. - Inner Bevel: add lit and shaded edges inside the characters, override/additive/multiply (only "override" on SM2 level GPUs). - Inner Outline: add outline inside the characters, override/additive/multiply. - With this package, you can finally echo effects from Photoshop or Word, while still using the standard Unity UI Text. - Suggestions for new effects are very welcome. The newly made effects will be added to the package. 仅供学习交流使用,如有侵权请告知删除。
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