[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(0, Application.dataPath.LastIndexOf("/")) + "/" + AssetDatabase.GetAssetPath(objects[0]);
        //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 = 0; i < paths.Length; i++)
        {
            string path = paths[i];
            string assetPath = path.Substring(path.IndexOf("Assets/"));
            string name = assetPath.Substring(assetPath.LastIndexOf("\") + 1);
            //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(0, 0, tex.width, tex.height);
            Texture2D texTemp = new Texture2D(tex.width, tex.height);
            Color[] colorsTemp = new Color[colors.Length];

            for (int j = 0; j < colors.Length; j++)
            {
                colorsTemp[j] = colors[j] * 2f;
            }
            texTemp.SetPixels(0, 0, tex.width, tex.height, colorsTemp);
            texTemp.Apply();
            byte[] bytes = texTemp.EncodeToPNG();
            File.WriteAllBytes(saveDir + "/" + name, bytes);
        }

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