Unity AssetBundle打包、加载、卸载

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Unity AssetBundle打包、加载、卸载

2023-10-27 05:06| 来源: 网络整理| 查看: 265

AssetBundle打包

1.在资源的AssetLabel，设置资源的BundleName以及BundleVariant，然后进行打包。

BuildAssetBundles的时候自动收集打AB。

AssetBundleManifest BuildAssetBundles(string outputPath, BuildAssetBundleOptions assetBundleOptions, BuildTarget targetPlatform);

2.定义AssetBundleBuild[]数组，只打包这些资源，但需要注意的是也要打包依赖项。

AssetBundleManifest BuildAssetBundles(string outputPath, AssetBundleBuild[] builds, BuildAssetBundleOptions assetBundleOptions, BuildTarget targetPlatform);

using UnityEditor; using System.IO; public class CreateAssetBundles //进行AssetBundle打包 { [MenuItem("Assets/Build AssetBundles")] static void BuildAllAssetBundles() { string dir = "AssetBundles"; if (Directory.Exists(dir) == false) { Directory.CreateDirectory(dir); } BuildPipeline.BuildAssetBundles(dir, //路径必须创建 BuildAssetBundleOptions.ChunkBasedCompression, //压缩类型 BuildTarget.StandaloneWindows64);//平台 } } NoneBuild assetBundle without any special option.（LAMA压缩，压缩率高，解压久）UncompressedAssetBundleDon't compress the data when creating the asset bundle.（不压缩，解压快）ChunkBasedCompression

Use chunk-based LZ4 compression when creating the AssetBundle.

（压缩率比LZMA低，解压速度接近无压缩）

AssetBundle加载

1.LoadFromMemory(LoadFromMemoryAsync)

2.LoadFromFile（LoadFromFileAsync）

3.UnityWebRequest

第一种

IEnumerator Start() { string path = "AssetBundles/wall.unity3d"; AssetBundleCreateRequest request = AssetBundle.LoadFromMemoryAsync(File.ReadAllBytes(path)); yield return request; AssetBundle ab = request.assetBundle; GameObject wallPrefab = ab.LoadAsset("Cube"); Instantiate(wallPrefab); }

第二种

IEnumerator Start() { string path = "AssetBundles/wall.unity3d"; AssetBundleCreateRequest request = AssetBundle.LoadFromFileAsync(path); yield return request; AssetBundle ab = request.assetBundle; GameObject wallPrefab = ab.LoadAsset("Cube"); Instantiate(wallPrefab); }

第三种

IEnumerator Start() { string uri = @"http://localhost/AssetBundles/cubewall.unity3d"; UnityWebRequest request = UnityWebRequest.GetAssetBundle(uri); yield return request.Send(); AssetBundle ab = DownloadHandlerAssetBundle.GetContent(request); GameObject wallPrefab = ab.LoadAsset("Cube"); Instantiate(wallPrefab); } AssetBundle卸载

AssetBundle.Unload(bool)，T

true卸载所有资源

false只卸载没使用的资源，而正在使用的资源与AssetBundle依赖关系会丢失，调用Resources.UnloadUnusedAssets可以卸载。或者等场景切换的时候自动调用Resources.UnloadUnusedAssets。

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Unity AssetBundle打包、加载、卸载

Unity AssetBundle打包、加载、卸载

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