Unity控制物体透明度的改变

目录标题

效果图
代码
调用
注意事项

效果图

在这里插入图片描述
请添加图片描述

代码

注意：在控制全部的模型进行透视时，已经隐藏的子物体仍然要处理。

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using DG.Tweening;
public class FadeModel {private GameObject model;//传入的模型private float fadeTime = 2f;//默认淡入时间为2sprivate List<Material> materials = new List<Material>();private float touMingDu = 0.02f;//透明度public FadeModel(GameObject model,float fadeTime=1f,float touMingDu=0.02f){this.model = model;this.fadeTime = fadeTime;this.touMingDu = touMingDu;materials.Clear();Dictionary<string, MeshRenderer> dic = FindInactiveChildrenRecursive(model.transform);foreach (KeyValuePair<string, MeshRenderer> item in dic){Material[] materals = item.Value.materials;foreach (Material m in materals){if (!materials.Contains(m)){materials.Add(m);}}}//MeshRenderer[] meshRenderers = model.GetComponentsInChildren<MeshRenderer>();//foreach (MeshRenderer mr in meshRenderers)//{//    Material[] materals = mr.materials;//    foreach (Material m in materals)//    {//        if (!materials.Contains(m))//        {//            materials.Add(m);//        }//    }//    Debug.Log(mr.gameObject.name);//}}//这里新增修改，递归查询所有子物体，孙物体。Dictionary<string,MeshRenderer> FindInactiveChildrenRecursive(Transform parent){Dictionary<string, MeshRenderer> mrdic = new Dictionary<string, MeshRenderer>();MeshRenderer mrp = parent.GetComponent<MeshRenderer>();if (mrp != null){mrdic.Add(parent.name, mrp);}int childCount = parent.childCount;for (int i = 0; i < childCount; i++){Transform child = parent.GetChild(i);MeshRenderer mr = child.GetComponent<MeshRenderer>();if (mr !=null){mrdic.Add(child.name, mr);}if (child.childCount > 0){FindInactiveChildrenRecursive(child);}}return mrdic;}//隐藏模型的淡隐效果public void HideModel(){for(int i=0;i< materials.Count;i++){Material m = materials[i];Color color = m.color;m.color = new Color(color.r, color.g, color.b, 1);//这里一定要重新设置下Fade模式下的color a值 为1  不然 经过一次显示他会一直显示为0setMaterialRenderingMode(m,RenderingMode.Transparent);m.DOColor(new Color(color.r, color.g, color.b, touMingDu), fadeTime);}}//当我们隐藏完后还需要设置回来 不然他下次显示使用就是透明状态public void ShowModel(){for (int i = 0; i < materials.Count; i++){Material m = materials[i];Color color = m.color;m.DOColor(new Color(color.r, color.g, color.b, 1), fadeTime).OnComplete(()=> { setMaterialRenderingMode(m, RenderingMode.Opaque); });}}public enum RenderingMode{Opaque,Cutout,Fade,Transparent}//设置材质的渲染模式private void setMaterialRenderingMode(Material material, RenderingMode renderingMode){switch (renderingMode){case RenderingMode.Opaque:material.SetOverrideTag("RenderType", "");material.SetInt("_SrcBlend", (int)UnityEngine.Rendering.BlendMode.One);material.SetInt("_DstBlend", (int)UnityEngine.Rendering.BlendMode.Zero);material.SetInt("_ZWrite", 1);material.DisableKeyword("_ALPHATEST_ON");material.DisableKeyword("_ALPHABLEND_ON");material.DisableKeyword("_ALPHAPREMULTIPLY_ON");material.renderQueue = -1;break;case RenderingMode.Cutout:material.SetOverrideTag("RenderType", "TransparentCutout");material.SetInt("_SrcBlend", (int)UnityEngine.Rendering.BlendMode.One);material.SetInt("_DstBlend", (int)UnityEngine.Rendering.BlendMode.Zero);material.SetInt("_ZWrite", 1);material.EnableKeyword("_ALPHATEST_ON");material.DisableKeyword("_ALPHABLEND_ON");material.DisableKeyword("_ALPHAPREMULTIPLY_ON");material.renderQueue = (int)UnityEngine.Rendering.RenderQueue.AlphaTest;break;case RenderingMode.Fade:material.SetOverrideTag("RenderType", "Transparent");material.SetInt("_SrcBlend", (int)UnityEngine.Rendering.BlendMode.SrcAlpha);material.SetInt("_DstBlend", (int)UnityEngine.Rendering.BlendMode.OneMinusSrcAlpha);material.SetInt("_ZWrite", 0);material.DisableKeyword("_ALPHATEST_ON");material.EnableKeyword("_ALPHABLEND_ON");material.DisableKeyword("_ALPHAPREMULTIPLY_ON");material.renderQueue = (int)UnityEngine.Rendering.RenderQueue.Transparent;break;case RenderingMode.Transparent:material.SetOverrideTag("RenderType", "Transparent");material.SetInt("_SrcBlend", (int)UnityEngine.Rendering.BlendMode.One);material.SetInt("_DstBlend", (int)UnityEngine.Rendering.BlendMode.OneMinusSrcAlpha);material.SetInt("_ZWrite", 0);material.DisableKeyword("_ALPHATEST_ON");material.DisableKeyword("_ALPHABLEND_ON");material.EnableKeyword("_ALPHAPREMULTIPLY_ON");material.renderQueue = (int)UnityEngine.Rendering.RenderQueue.Transparent;break;}//switch (renderingMode)//{//    case RenderingMode.Opaque://        material.SetInt("_SrcBlend", (int)UnityEngine.Rendering.BlendMode.One);//        material.SetInt("_DstBlend", (int)UnityEngine.Rendering.BlendMode.Zero);//        material.SetInt("_ZWrite", 1);//        material.DisableKeyword("_ALPHATEST_ON");//        material.DisableKeyword("_ALPHABLEND_ON");//        material.DisableKeyword("_ALPHAPREMULTIPLY_ON");//        material.renderQueue = -1;//        break;//    case RenderingMode.Cutout://        material.SetInt("_SrcBlend", (int)UnityEngine.Rendering.BlendMode.One);//        material.SetInt("_DstBlend", (int)UnityEngine.Rendering.BlendMode.Zero);//        material.SetInt("_ZWrite", 1);//        material.EnableKeyword("_ALPHATEST_ON");//        material.DisableKeyword("_ALPHABLEND_ON");//        material.DisableKeyword("_ALPHAPREMULTIPLY_ON");//        material.renderQueue = 2450;//        break;//    case RenderingMode.Fade://        material.SetInt("_SrcBlend", (int)UnityEngine.Rendering.BlendMode.SrcAlpha);//        material.SetInt("_DstBlend", (int)UnityEngine.Rendering.BlendMode.OneMinusSrcAlpha);//        material.SetInt("_ZWrite", 0);//        material.DisableKeyword("_ALPHATEST_ON");//        material.EnableKeyword("_ALPHABLEND_ON");//        material.DisableKeyword("_ALPHAPREMULTIPLY_ON");//        material.renderQueue = 3000;//        //material.SetFloat("" _Mode & quot;", 2);  //        break;//    case RenderingMode.Transparent://        material.SetInt("_SrcBlend", (int)UnityEngine.Rendering.BlendMode.One);//        material.SetInt("_DstBlend", (int)UnityEngine.Rendering.BlendMode.OneMinusSrcAlpha);//        material.SetInt("_ZWrite", 0);//        material.DisableKeyword("_ALPHATEST_ON");//        material.DisableKeyword("_ALPHABLEND_ON");//        material.EnableKeyword("_ALPHAPREMULTIPLY_ON");//        material.renderQueue = 3000;//        break;//}}}

调用

foreach (Transform item in DiZhiKuai.transform)
{//需要传入变化的时间，以及透明度FadeModel fm = new FadeModel(item.gameObject, 0.5f, toumingdu);if (DiZhiTouShi.isOn){fm.ShowModel();}else{fm.HideModel();}
}