放在Editor下

using UnityEngine; using UnityEditor; using System.IO;public class TextureSetting {[MenuItem("Utils/TextureSetting", false, 100)]public static void TextureSettingFunc(){//以需要修改Assets/Resources/Texture路徑下的png圖為例. 路徑與"*.png"根據自己情況修改 需要所有格式可以使用"*"string[] allPng = Directory.GetFiles("Assets/Resources/Texture", "*.png", SearchOption.AllDirectories);for (int i = 0; i < allPng.Length; i++){Setting(allPng[i]);}}public static void Setting(string atlasAssetPath){TextureImporter imp = TextureImporter.GetAtPath(atlasAssetPath) as TextureImporter;if (imp == null) return;imp.textureType = TextureImporterType.Default;imp.alphaIsTransparency = true;imp.mipmapEnabled = true;imp.wrapMode = TextureWrapMode.Clamp;imp.filterMode = FilterMode.Trilinear;TextureImporterPlatformSettings setting_Ios = imp.GetPlatformTextureSettings("iPhone");setting_Ios.overridden = true;setting_Ios.maxTextureSize = 2048;setting_Ios.format = TextureImporterFormat.ASTC_RGBA_5x5;setting_Ios.compressionQuality = 1;imp.SetPlatformTextureSettings(setting_Ios);TextureImporterPlatformSettings setting_Android = imp.GetPlatformTextureSettings("Android");setting_Android.overridden = true;setting_Android.maxTextureSize = 2048;setting_Android.format = TextureImporterFormat.ETC2_RGBA8;imp.SetPlatformTextureSettings(setting_Android);imp.SaveAndReimport();Debug.Log("設置圖：" + atlasAssetPath);} }

用OnPreprocessTexture也可以做到

總結

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