Unity减少发布打包文件的体积（二）——设置WebGL发布时每张图片的压缩方式 - ToB企服应用市场:ToB评测及商务社交产业平台

/// <summary>
/// 获取图片的分辨率，取分辨率中高宽的最大值，然后返回图片的【MaxSize】
/// MaxSize的定义：assets->Image->【Texture2D ImportSettings】->【Override For WebGL】->【Max Size】
/// 区间：16,32,64,128,256,512,1024,2048,4096,8192,16384
///
/// 举例：图片分辨率 = 12 * 24，那么图片的MaxSize = 32
/// </summary>
/// <param name="texture"></param>
/// <returns></returns>
public static int GetMaxSize(Texture2D texture)
{
//分辨率区间的预备
var start = new List<int> { 0, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384 };
var end = new List<int> { 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 100000 };
var zones = start.Zip(end, (item1, item2) => (startIdx: item1, endIdx: item2)).ToList();
//取分辨率高宽的最大值
var size = new List<int> { texture.width, texture.height }.Max(); //取【宽】【高】中的最大值
//判断所属的区间
var maxSize = zones.First(x => x.startIdx <= size && size <= x.endIdx).endIdx;
//Debug.Log($"图的分辨率 = {texture.width} * {texture.height} size = {size}, MaxSize = {maxSize}");
return maxSize;
}

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Object[] textures = Selection.GetFiltered(typeof(Texture2D), SelectionMode.DeepAssets);

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string[] guids = AssetDatabase.FindAssets("t:texture2d");

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string path = AssetDatabase.GUIDToAssetPath(guid);//guid是guids的items

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Texture2D texture = AssetDatabase.LoadAssetAtPath<Texture2D>(path);

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......

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// 创建特定平台压缩实例
TextureImporterPlatformSettings platformSettings = new TextureImporterPlatformSettings();
platformSettings.overridden = true;
platformSettings.name = "WebGL";
// 设置为压缩
platformSettings.textureCompression = TextureImporterCompression.Compressed;
// 设置压缩格式
platformSettings.format = format; //TextureImporterFormat.ASTC_12x12;
platformSettings.compressionQuality = compressionQuality; //40
platformSettings.maxTextureSize = GetMaxSize(texture as Texture2D); //32
//设置importSettings
TextureImporter importer = AssetImporter.GetAtPath(AssetDatabase.GetAssetPath(texture)) as TextureImporter;
importer.SetPlatformTextureSettings(platformSettings);
//Apply 设置
importer.SetPlatformTextureSettings(platformSettings);
//保存资源
importer.SaveAndReimport();

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using System.Collections.Generic;using System.Linq;using UnityEngine;using UnityEditor;public class SetTextureCompression{ //****************************************参数设置区**********begin //TODO 做成EditWindow类型 private static TextureImporterFormat format = TextureImporterFormat.ASTC_12x12; //图片压缩格式 private static int compressionQuality = 60; //压缩比例 private static string platform = "WebGL"; //发布的平台 //************************************************************end /// <summary> /// 设置贴图在build时的压缩选项 /// </summary> [MenuItem("Assets/设置发布WebGL时贴图的压缩格式")] static void SetCompression() { int count = 0; Object[] textures = Selection.GetFiltered(typeof(Texture2D), SelectionMode.DeepAssets);
if (textures.Length > 0) { foreach (Object texture in textures) { // 创建特定平台压缩实例 TextureImporterPlatformSettings platformSettings = new TextureImporterPlatformSettings(); platformSettings.overridden = true; platformSettings.name = platform; // 设置为压缩 platformSettings.textureCompression = TextureImporterCompression.Compressed; // 设置压缩格式 platformSettings.format = format; //TextureImporterFormat.ASTC_12x12; platformSettings.compressionQuality = compressionQuality; //40 platformSettings.maxTextureSize = GetMaxSize(texture as Texture2D); //32 //设置importSettings TextureImporter importer = AssetImporter.GetAtPath(AssetDatabase.GetAssetPath(texture)) as TextureImporter; importer.SetPlatformTextureSettings(platformSettings); //Apply 设置 importer.SetPlatformTextureSettings(platformSettings); //生存资源 importer.SaveAndReimport(); count++; } //Debug.Log("Texture Compression Set!"); } else { Debug.LogWarning("没有选中图片!"); } Debug.Log($"一共处置惩罚了{count}张图片！"); } /// <summary> /// 获取图片的分辨率，取分辨率中高宽的最大值，然后返回图片的【MaxSize】 /// MaxSize的定义：assets->Image->【Texture2D ImportSettings】->【Override For WebGL】->【Max Size】 /// 区间：16,32,64,128,256,512,1024,2048,4096,8192,16384 /// /// 举例：图片分辨率 = 12 * 24，那么图片的MaxSize = 32 /// </summary> /// <param name="texture"></param> /// <returns></returns> static int GetMaxSize(Texture2D texture) { //分辨率区间的预备 var start = new List<int> { 0, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384 }; var end = new List<int> { 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 100000 }; var zones = start.Zip(end, (item1, item2) => (startIdx: item1, endIdx: item2)).ToList(); //取分辨率高宽的最大值 var size = new List<int> { texture.width, texture.height }.Max(); //取【宽】【高】中的最大值 //判定所属的区间 var maxSize = zones .First(x => x.startIdx <= size && size <= x.endIdx) .endIdx; //Debug.Log($"图的分辨率 = {texture.width} * {texture.height} size = {size}, MaxSize = {maxSize}"); return maxSize; }}

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using System;using UnityEngine;using UnityEditor;using System.Linq;using System.IO;using System.Collections.Generic;class Example : EditorWindow{#if UNITY_EDITOR [MenuItem("模型处置惩罚/查找项目中所有的texture 2d对象并压缩")]#endif static void FindAllTexture2D() { //****************************************参数设置区**********begin //TODO 做成EditWindow类型 TextureImporterFormat format = TextureImporterFormat.ASTC_12x12; //图片压缩格式 int compressionQuality = 60; //压缩比例 string platform = "WebGL"; //发布的平台 //************************************************************end //查找工程文件中的所有精灵图片 string[] guids = AssetDatabase.FindAssets("t:texture2d");
Debug.Log($"Found {guids.Length} Texture2d assets."); foreach (string guid in guids) { try { string path = AssetDatabase.GUIDToAssetPath(guid); Debug.Log($"{path}"); // 使用AssetDatabase加载Texture2D Texture2D texture = AssetDatabase.LoadAssetAtPath<Texture2D>(path);
//Debug.Log($"{texture.name}"); if (texture == null) continue; // 创建特定平台压缩实例 TextureImporterPlatformSettings platformSettings = new TextureImporterPlatformSettings(); platformSettings.overridden = true; platformSettings.name = platform; // 设置为压缩 platformSettings.textureCompression = TextureImporterCompression.Compressed; // 设置压缩格式 platformSettings.format = format; //TextureImporterFormat.ASTC_12x12; platformSettings.compressionQuality = compressionQuality; //40 platformSettings.maxTextureSize = GetMaxSize(texture as Texture2D); //32 //设置importSettings TextureImporter importer = AssetImporter.GetAtPath(AssetDatabase.GetAssetPath(texture)) as TextureImporter; if (importer == null) continue; importer.SetPlatformTextureSettings(platformSettings); //Apply 设置 importer.SetPlatformTextureSettings(platformSettings); //生存资源 importer.SaveAndReimport(); } catch (Exception ex) { Debug.Log( $" ~~~~~error~~~~~ 设置报错：{ex.Message}"); } } } /// <summary> /// 获取图片的分辨率，取分辨率中高宽的最大值，然后返回图片的【MaxSize】 /// MaxSize的定义：assets->Image->【Texture2D ImportSettings】->【Override For WebGL】->【Max Size】 /// 区间：16,32,64,128,256,512,1024,2048,4096,8192,16384 /// /// 举例：图片分辨率 = 12 * 24，那么图片的MaxSize = 32 /// </summary> /// <param name="texture"></param> /// <returns></returns> static int GetMaxSize(Texture2D texture) { //分辨率区间的预备 var start = new List<int> { 0, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384 }; var end = new List<int> { 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 100000 }; var zones = start.Zip(end, (item1, item2) => (startIdx: item1, endIdx: item2)).ToList(); //取分辨率高宽的最大值 var size = new List<int> { texture.width, texture.height }.Max(); //取【宽】【高】中的最大值 //判定所属的区间 var maxSize = zones .First(x => x.startIdx <= size && size <= x.endIdx) .endIdx; //Debug.Log($"图的分辨率 = {texture.width} * {texture.height} size = {size}, MaxSize = {maxSize}"); return maxSize; }}

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