Unity3D 批量图片资源导入设置

原地址：http://blog.csdn.net/asd237241291/article/details/8433548

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using UnityEngine;
using System.Collections;
using UnityEditor;
/// <summary>
/// 批量图片资源导入设置
/// 使用说明： 选择需要批量设置的贴图，
/// 单击DuanMenu/Texture Import Settings，
/// 打开窗口后选择对应参数，
/// 点击Set Texture ImportSettings，
/// 稍等片刻，--批量设置成功。
/// </summary>


public class TextureImportSetting : EditorWindow {
    
    /// <summary>
    /// 临时存储int[]
    /// </summary>
    private int[] IntArray = new int[] { 0, 1, 2, 3, 4, 5, 6, 7 };
    //AnisoLevel
    private int AnisoLevel = 1;
    //Filter Mode
    private int FilterModeInt = 0;
    private string[] FilterModeString = new string[] { "Point", "Bilinear", "Trilinear" };
    //Wrap Mode
    private int WrapModeInt = 0;
    private string[] WrapModeString = new string[] { "Repeat", "Clamp" };
    //Texture Type
    private int TextureTypeInt = 0;
    private string[] TextureTypeString = new string[] { "Texture", "Normal Map", "GUI", "Refelection", "Cookie", "Lightmap", "Advanced" };
    //Max Size
    private int MaxSizeInt = 5;
    private string[] MaxSizeString = new string[] { "32", "64", "128", "256", "512", "1024", "2048", "4096" };
    //Format
    private int FormatInt = 0;
    private string[] FormatString = new string[] { "Compressed", "16 bits", "true color" };
    
    /// <summary>
    /// 创建、显示窗体
    /// </summary>
    [@MenuItem("DuanMenu/Texture Import Settings")]
    private static void Init()
    {    
        TextureImportSetting window = (TextureImportSetting)EditorWindow.GetWindow(typeof(TextureImportSetting), true, "TextureImportSetting");
        window.Show();
    }
    
    /// <summary>
    /// 显示窗体里面的内容
    /// </summary>
    private void OnGUI()
    {
        //AnisoLevel
        GUILayout.BeginHorizontal();
        GUILayout.Label("Aniso Level  ");
        AnisoLevel = EditorGUILayout.IntSlider(AnisoLevel, 0, 9);
        GUILayout.EndHorizontal();
        //Filter Mode
        FilterModeInt = EditorGUILayout.IntPopup("Filter Mode", FilterModeInt, FilterModeString, IntArray);
        //Wrap Mode
        WrapModeInt = EditorGUILayout.IntPopup("Wrap Mode", WrapModeInt, WrapModeString, IntArray);
        //Texture Type
        TextureTypeInt = EditorGUILayout.IntPopup("Texture Type", TextureTypeInt, TextureTypeString, IntArray);
        //Max Size
        MaxSizeInt = EditorGUILayout.IntPopup("Max Size", MaxSizeInt, MaxSizeString, IntArray);
        //Format
        FormatInt = EditorGUILayout.IntPopup("Format", FormatInt, FormatString, IntArray);
        if (GUILayout.Button("Set Texture ImportSettings"))
            LoopSetTexture();
    }
    
    /// <summary>
    /// 获取贴图设置
    /// </summary>
    public TextureImporter GetTextureSettings(string path)
    {
        TextureImporter textureImporter = AssetImporter.GetAtPath(path) as TextureImporter;
        //AnisoLevel
        textureImporter.anisoLevel = AnisoLevel;
        //Filter Mode
        switch (FilterModeInt)
        {
            case 0:
                textureImporter.filterMode = FilterMode.Point;
                break;
            case 1:
                textureImporter.filterMode = FilterMode.Bilinear;
                break;
            case 2:
                textureImporter.filterMode = FilterMode.Trilinear;
                break;
        }
        //Wrap Mode
        switch (WrapModeInt)
        {
            case 0:
                textureImporter.wrapMode = TextureWrapMode.Repeat;
                break;
            case 1:
                textureImporter.wrapMode = TextureWrapMode.Clamp;
                break;
        }
        //Texture Type
        switch (TextureTypeInt)
        {
            case 0:
                textureImporter.textureType = TextureImporterType.Image;
                break;
            case 1:
                textureImporter.textureType = TextureImporterType.Bump;
                break;
            case 2:
                textureImporter.textureType = TextureImporterType.GUI;
                break;
            case 3:
                textureImporter.textureType = TextureImporterType.Reflection;
                break;
            case 4:
                textureImporter.textureType = TextureImporterType.Cookie;
                break;
            case 5:
                textureImporter.textureType = TextureImporterType.Lightmap;
                break;
            case 6:
                textureImporter.textureType = TextureImporterType.Advanced;
                break;
        }
        //Max Size 
        switch (MaxSizeInt)
        {
            case 0:
                textureImporter.maxTextureSize = 32;
                break;
            case 1:
                textureImporter.maxTextureSize = 64;
                break;
            case 2:
                textureImporter.maxTextureSize = 128;
                break;
            case 3:
                textureImporter.maxTextureSize = 256;
                break;
            case 4:
                textureImporter.maxTextureSize = 512;
                break;
            case 5:
                textureImporter.maxTextureSize = 1024;
                break;
            case 6:
                textureImporter.maxTextureSize = 2048;
                break;
            case 7:
                textureImporter.maxTextureSize = 4096;
                break;
        }
        //Format
        switch (FormatInt)
        {
            case 0:
                textureImporter.textureFormat = TextureImporterFormat.AutomaticCompressed;
                break;
            case 1:
                textureImporter.textureFormat = TextureImporterFormat.Automatic16bit;
                break;
            case 2:
                textureImporter.textureFormat = TextureImporterFormat.AutomaticTruecolor;
                break;
        }
        return textureImporter;
    }
    
    /// <summary>
    /// 循环设置选择的贴图
    /// </summary>
    private void LoopSetTexture()
    {
        Object[] textures = GetSelectedTextures();
        Selection.objects = new Object[0];
        foreach (Texture2D texture in textures)
        {
            string path = AssetDatabase.GetAssetPath(texture);
            TextureImporter texImporter = GetTextureSettings(path);
            TextureImporterSettings tis = new TextureImporterSettings();
            texImporter.ReadTextureSettings(tis);
            texImporter.SetTextureSettings(tis);
            AssetDatabase.ImportAsset(path);
        }
    }
    
    /// <summary>
    /// 获取选择的贴图
    /// </summary>
    /// <returns></returns>
    private Object[] GetSelectedTextures()
    {
        return Selection.GetFiltered(typeof(Texture2D), SelectionMode.DeepAssets);
    }
}
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