Unity3d 批量修改贴图导入设置工具脚本

    这个 Unity3D批量修改贴图导入设置工具脚本十分小巧，但是威力大。特别针对大批量贴图要调整尺寸等等的时候作用尤为明显。在菜单中添加“Custom→Texture”的方式来批量改变所选的贴图导入设置。Unity本身只能一次打开一张图片进行导入设置，目前这个脚本可以批量更改贴图格式，是否开启MipMap，调整纹理最大尺寸，是否可读等等。

    用法是把脚本放在你项目的资源目录的Editor文件夹下。然后选择你要批处理的纹理。到菜单中选择要处理的类型就可以了。

    ChangeTextureImportSettings。csforUnity2.x

    程序代码csharp代码：

using UnityEngine;
using UnityEditor;
 
// /
//
// Batch Texture import settings modifier.
//
// Modifies all selected textures in the project window and applies the requested modification on the
// textures. Idea was to have the same choices for multiple files as you would have if you open the
// import settings of a single texture. Put this into Assets/Editor and once compiled by Unity you find
// the new functionality in Custom -> Texture. Enjoy! :-)
//
// Based on the great work of benblo in this thread:
// http://forum.unity3d.com/viewtopic.php?t=16079&start=0&postdays=0&postorder=asc&highlight=textureimporter
//
// Developed by Martin Schultz, Decane in August 2009
// e-mail: [email protected]
//
// /
public class ChangeTextureImportSettings : ScriptableObject {
 
    [MenuItem ("Custom/Texture/Change Texture Format/Auto")]
    static void ChangeTextureFormat_Auto() {
        SelectedChangeTextureFormatSettings(TextureImporterFormat.Automatic);
    }
 
    [MenuItem ("Custom/Texture/Change Texture Format/RGB Compressed DXT1")]
    static void ChangeTextureFormat_RGB_DXT1() {
        SelectedChangeTextureFormatSettings(TextureImporterFormat.DXT1);
    }
 
    [MenuItem ("Custom/Texture/Change Texture Format/RGB Compressed DXT5")]
    static void ChangeTextureFormat_RGB_DXT5() {
        SelectedChangeTextureFormatSettings(TextureImporterFormat.DXT5);
    }
 
    [MenuItem ("Custom/Texture/Change Texture Format/RGB 16 bit")]
    static void ChangeTextureFormat_RGB_16bit() {
        SelectedChangeTextureFormatSettings(TextureImporterFormat.RGB16);
    }
 
    [MenuItem ("Custom/Texture/Change Texture Format/RGB 24 bit")]
    static void ChangeTextureFormat_RGB_24bit() {
        SelectedChangeTextureFormatSettings(TextureImporterFormat.RGB24);
    }
 
    [MenuItem ("Custom/Texture/Change Texture Format/Alpha 8 bit")]
    static void ChangeTextureFormat_Alpha_8bit() {
        SelectedChangeTextureFormatSettings(TextureImporterFormat.Alpha8);
    }
 
    [MenuItem ("Custom/Texture/Change Texture Format/RGBA 16 bit")]
    static void ChangeTextureFormat_RGBA_16bit() {
        SelectedChangeTextureFormatSettings(TextureImporterFormat.ARGB16);
    }
 
    [MenuItem ("Custom/Texture/Change Texture Format/RGBA 32 bit")]
    static void ChangeTextureFormat_RGBA_32bit() {
        SelectedChangeTextureFormatSettings(TextureImporterFormat.ARGB32);
    }
 
    // ----------------------------------------------------------------------------
 
    [MenuItem ("Custom/Texture/Change Texture Size/Change Max Texture Size/32")]
    static void ChangeTextureSize_32() {
        SelectedChangeMaxTextureSize(32);
    }
 
    [MenuItem ("Custom/Texture/Change Texture Size/Change Max Texture Size/64")]
    static void ChangeTextureSize_64() {
        SelectedChangeMaxTextureSize(64);
    }
 
    [MenuItem ("Custom/Texture/Change Texture Size/Change Max Texture Size/128")]
    static void ChangeTextureSize_128() {
        SelectedChangeMaxTextureSize(128);
    }
 
    [MenuItem ("Custom/Texture/Change Texture Size/Change Max Texture Size/256")]
    static void ChangeTextureSize_256() {
        SelectedChangeMaxTextureSize(256);
    }
 
    [MenuItem ("Custom/Texture/Change Texture Size/Change Max Texture Size/512")]
    static void ChangeTextureSize_512() {
        SelectedChangeMaxTextureSize(512);
    }
    //Unity3D教程手册：www.unitymanual.com
    [MenuItem ("Custom/Texture/Change Texture Size/Change Max Texture Size/1024")]
    static void ChangeTextureSize_1024() {
        SelectedChangeMaxTextureSize(1024);
    }
 
    [MenuItem ("Custom/Texture/Change Texture Size/Change Max Texture Size/2048")]
    static void ChangeTextureSize_2048() {
        SelectedChangeMaxTextureSize(2048);
    }
 
    // ----------------------------------------------------------------------------
 
    [MenuItem ("Custom/Texture/Change MipMap/Enable MipMap")]
    static void ChangeMipMap_On() {
        SelectedChangeMimMap(true);
    }
 
    [MenuItem ("Custom/Texture/Change MipMap/Disable MipMap")]
    static void ChangeMipMap_Off() {
        SelectedChangeMimMap(false);
    }
 
    // ----------------------------------------------------------------------------
 
    static void SelectedChangeMimMap(bool enabled) {
 
        Object[] textures = GetSelectedTextures();
        Selection.objects = new Object[0];
        foreach (Texture2D texture in textures)  {
            string path = AssetDatabase.GetAssetPath(texture);
            TextureImporter textureImporter = AssetImporter.GetAtPath(path) as TextureImporter;
            textureImporter.mipmapEnabled = enabled;    
            AssetDatabase.ImportAsset(path);
        }
    }
    //Unity3D教程手册：www.unitymanual.com
    static void SelectedChangeMaxTextureSize(int size) {
 
        Object[] textures = GetSelectedTextures();
        Selection.objects = new Object[0];
        foreach (Texture2D texture in textures)  {
            string path = AssetDatabase.GetAssetPath(texture);
            TextureImporter textureImporter = AssetImporter.GetAtPath(path) as TextureImporter;
            textureImporter.maxTextureSize = size;  
            AssetDatabase.ImportAsset(path);
        }
    }
 
    static void SelectedChangeTextureFormatSettings(TextureImporterFormat newFormat) {
 
        Object[] textures = GetSelectedTextures();
        Selection.objects = new Object[0];
        foreach (Texture2D texture in textures)  {
            string path = AssetDatabase.GetAssetPath(texture);
            //Debug.Log("path: " + path);
            TextureImporter textureImporter = AssetImporter.GetAtPath(path) as TextureImporter;
            textureImporter.textureFormat = newFormat;  
            AssetDatabase.ImportAsset(path);
        }
    }
 
    static Object[] GetSelectedTextures()
    {
        return Selection.GetFiltered(typeof(Texture2D), SelectionMode.DeepAssets);
    }
}