查找所有有多个 Texture 的 Matrial

using UnityEngine;
using UnityEditor;
using System.Collections;
using System.Collections.Generic;

public class FindMulTextureMaterial : EditorWindow
{
// 界面状态
private enum WinState
{
InitState,
StartState,
FinishState,
}

// 当前界面状态
private WinState m_CurWinState = WinState.InitState;
// 用来保存找到的引用Material
private List<string> m_MaterialPathList = new List<string>();
// 用来保存所有找到的资源路径的数据
private string[] m_AllAssetList;
// 滚动参数
private Vector2 scrollPos = Vector2.zero;

// 搜索路径
private string m_SearchPath = "Assets/Art/Characters";
// 单例
public static FindMulTextureMaterial m_Win;

[MenuItem("Assets/查找所有有多个 Texture 的 Matrial ")]
public static void CheckMulMat()
{
if (m_Win == null)
{
m_Win = (FindMulTextureMaterial)EditorWindow.GetWindow(typeof(FindMulTextureMaterial), true, "查找所有有多个 Texture 的 Matrial ");
m_Win.minSize = new Vector2(800, 480);
}
}

void OnGUI()
{
EditorGUILayout.HelpBox("请确保当前场景已经保存,否则没保存的资源将无法被搜索到！", MessageType.Warning);
switch (m_CurWinState)
{
case WinState.InitState:
OnInitState();
break;
case WinState.StartState:
OnStartState();
break;
default:
break;
}

if (GUILayout.Button("刷新", GUILayout.Height(40)))
{
m_CurWinState = WinState.InitState;
}
}

private void OnInitState()
{
m_MaterialPathList.Clear();
FindTextureDepend();

m_Win.title = "查找所有有多个 Texture 的 Matrial";
m_CurWinState = WinState.StartState;

#region 确定是否保存了场景
// 确定是否保存了场景
if (!EditorApplication.SaveCurrentSceneIfUserWantsTo())
{
ShowNotification(new GUIContent("请确保当前场景已经保存,否则没保存的资源将无法被搜索到！"));
}
#endregion
}

private void OnStartState()
{
// 显示依赖的纹理Material
if (m_MaterialPathList.Count > 0)
{
ShowTextureDepend();
}
}

// 1.1 显示纹理依赖
private void FindTextureDepend()
{
// 1：查找所有 Material 找到纹理被引用的Material
m_AllAssetList = AssetDatabase.FindAssets("t:Material", new string[] { m_SearchPath });

for (int i = 0; i < m_AllAssetList.Length; ++i)
{
string materialPath = AssetDatabase.GUIDToAssetPath(m_AllAssetList[i]); // 遍历 Material 纹理
// 显示进度条
EditorUtility.DisplayProgressBar("查找所有用到" " + " " 的Material", materialPath, (float)i / (float)m_AllAssetList.Length);

Material material = AssetDatabase.LoadAssetAtPath(materialPath, typeof(Material)) as Material;

string[] materialDependList = AssetDatabase.GetDependencies(new string[] { materialPath }); // 纹理依赖项

Debug.Log(materialPath + " " + materialDependList.Length.ToString());

for (int k = 0; k < materialDependList.Length; ++k)
{
if (materialDependList.Length > 2)
{
m_MaterialPathList.Add(materialPath);
}
}

if (i >= m_AllAssetList.Length - 1)
{
EditorUtility.ClearProgressBar();
}
}
}
// 显示依赖的Material界面布局
private void ShowTextureDepend()
{
// 1：显示 Material 列表
EditorGUILayout.BeginVertical();
scrollPos = EditorGUILayout.BeginScrollView(scrollPos);
EditorGUILayout.SelectableLabel("使用的 Material ：");

foreach (var item in m_MaterialPathList)
{
Material mt = AssetDatabase.LoadAssetAtPath(item, typeof(Material)) as Material;
Texture2D texture = AssetPreview.GetAssetPreview(mt);

GUILayout.BeginHorizontal();
Rect ret = EditorGUILayout.GetControlRect(GUILayout.Height(30), GUILayout.Width(30));
if (texture != null)
EditorGUI.DrawPreviewTexture(ret, texture);
EditorGUILayout.TextField("", item, GUILayout.Height(30));
if (GUILayout.Button("点击查看资源", GUILayout.Width(150), GUILayout.Height(30)))
{
Selection.activeObject = mt;
}
GUILayout.EndHorizontal();

}
EditorGUILayout.Space();
EditorGUILayout.EndScrollView();
EditorGUILayout.EndVertical();
}
}