[Unity工具]批量修改Texture

BatchModifyTexture.cs

 using UnityEngine;
 using System.Collections;
 using UnityEditor;
 using System.IO;

 public class BatchModifyTexture {

     [MenuItem("Assets/BatchModifyTexture")]
     static void Init()
     {
         //获取Project视图中的选中目录下的所有图片
         Object[] objects = Selection.GetFiltered(typeof(Object), SelectionMode.Unfiltered);
         string dir = Application.dataPath.Substring(, Application.dataPath.LastIndexOf("/")) + "/" + AssetDatabase.GetAssetPath(objects[]);
         //Debug.LogError(dir);
         string[] paths = Directory.GetFiles(dir, "*.png", SearchOption.AllDirectories);

         //创建存放目录
         string saveDir = Application.dataPath + "/BatchModifyTexture";
         if (!Directory.Exists(saveDir))
         {
             Directory.CreateDirectory(saveDir);
         }

         //图片处理
         for (int i = ; i < paths.Length; i++)
         {
             string path = paths[i];
             string assetPath = path.Substring(path.IndexOf("Assets/"));
             string name = assetPath.Substring(assetPath.LastIndexOf("\\") + );
             //Debug.LogWarning(assetPath);
             //Debug.LogWarning(name);

             //设置成可读
             TextureImporter textureImporter = AssetImporter.GetAtPath(assetPath) as TextureImporter;
             textureImporter.textureType = TextureImporterType.Advanced;
             textureImporter.isReadable = true;
             AssetDatabase.ImportAsset(assetPath);

             //图片颜色变亮
             Texture2D tex = AssetDatabase.LoadAssetAtPath<Texture2D>(assetPath);
             Color[] colors = tex.GetPixels(, , tex.width, tex.height);
             Texture2D texTemp = new Texture2D(tex.width, tex.height);
             Color[] colorsTemp = new Color[colors.Length];

             for (int j = ; j < colors.Length; j++)
             {
                 colorsTemp[j] = colors[j] * 2f;
             }
             texTemp.SetPixels(, , tex.width, tex.height, colorsTemp);
             texTemp.Apply();
             byte[] bytes = texTemp.EncodeToPNG();
             File.WriteAllBytes(saveDir + "/" + name, bytes);
         }

         AssetDatabase.Refresh();
         Debug.Log("BatchModifyTexture Finish");
     }
 }