学校では教えてくれないアセットバンドル

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2 Unity Technologies Japan Developer Relationship Engineer Yusuke Ebata

3 Unity 5.3

5 Unity ICON:designed by Freepik

6 1

7 AssetBundle.CreateFromMemory AssetBundle.CreateFromFile

13 LoadFromCacheOrDonwload

16 LoadFromCacheOrDownload

17 using UnityEngine; using System.Collections; public class LoadFromCacheOrDownloadExample : MonoBehaviour { IEnumerator Start () { while (!Caching.ready) yield return null; var www = 5); yield return www; if(!string.isnullorempty( { } Debug.Log( yield return; var myloadedassetbundle = } } var asset = myloadedassetbundle.mainasset;

18 while (!Caching.ready) yield return null; using (var www = 5)) { yield return www; if (!string.isnullorempty( { Debug.Log( yield return; } var myloadedassetbundle = } Instantiate(myLoadedAssetBundle.mainAsset);

20 ( url, hash ) WWW. LoadFromCacheOrDownload

21 Managed LoadFromCacheOrDownload( url, hash ) b7885ce6145d0cd e3f48b584e0c14a806 Native WWW PersistentManager AssetBundle Cached data is available Index b7885ce614 ae452fb031 c299bcd232 CachingManager ICON:designed by Freepik

22 Managed 6e324e0654ef0d8f5e6c86376c252356fba7cf06 Native Compressed data WWW Uncompressed data PersistentManager AssetBundle Cached data isn t exist Index b7885ce614 ae452fb031 c299bcd232 6e324e0654 CachingManager ICON:designed by Freepik

23 Managed Native WWW PersistentManager AssetBundle Index CachingManager b7885ce614 ae452fb031 c299bcd232 6e324e0654

24 Caching.ready == true

27 Unity CachingManager zip AssetBundle.LoadFromFile

28 { ABCachingOperation cache = AssetBundeManager.GetCachedAssetBundle(url, version); yield return cache; AssetBundleCreateRequest creationrequest = AssetBundle.LoadFromFileAsync(path); yield return creationrequest; var myloadedassetbundle = creationrequest.assetbundle; } Instantiate(myLoadedAssetBundle.mainAsset);

29 Managed Native Index b7885ce614 ae452fb031 c299bcd232 6e324e0654 6e324e0654ef0d8f5e6c AssetBundleManager Uncompressed data Compressed data (.zip) Compressed data (.zip) WWW AssetBundle CreateFromFile PersistentManager ICON:designed by Freepik

32 SD SD_unitychan_humanoid.prefab 1.25MB 2.7MB 1.7MB

33 (CreateFromFile) 4,365,257 bytes 4,365,257 bytes 0.44 msec 29.9% 1,303,669 bytes 4,365,257 bytes (zip) 1,658,563 bytes

35 Unity 5.3

36 5.2

37 Chunk based compression

38 Chunk based compression 5.3 LZ4 BuildAssetBundleOptions.ChunkBasedCompression

39 LZMA

40 AssetBundle.CreateFromFile AssetBundle.CreateFromMemory Managed

41 LZ4 LZMA AssetBundle.LoadFromFile

42 LZMA AssetBundle.LoadFromFile LZMA Managed

43 (LoadFromFile) (LoadFromFile) 4,365,257 bytes 4,365,257 bytes 0.44 msec (LZMA) 29.9% 44.4% 125% 1,303,669 bytes 1,938,443 bytes 0.56 msec msec (Caching.compression Enabled=false ) (LZ4) 148.7% 1,938,443 bytes 1,938,443 bytes 0.55 msec LZMA compressionenabled=false true

44 5.3 (LZMA) LZ4 LZ4 LZMA LZ4 Caching.compressionEnabled false 5.2

45 LZMA LZMA LZ4 LZ4

46 LZMA LZMA LZ4 LZ4 Unity

47 UnityWebRequest

48 Managed Native AssetBundleManager Uncompressed data Compressed data (.zip) Compressed data (.zip) WWW AssetBundle LoadFromFile PersistentManager ICON:designed by Freepik

49 WWW

50 HTTP SSL WebClient HttpWebRequest

51 HTTP

52 UnityWebRequest UnityEngine.Experimental.Networking.UnityWebRequest 5.2 Editor PC ios/android/wp Experimental UnityEngine.Networking.UnityWebRequest

53 UnityWebRequest WWW WWW HTTP HTTP WWW API Get, Post, Put DownloadHandler UploadHandler HL(High-Level) API LL(Low-Level) API

54 UnityWebRequest Low-Level API UnityWebRequest UnityWebRequest

55 UnityWebRequest UnityWebRequest www = new UnityWebRequest(" = new DownloadHandlerBuffer(); yield return if ( { Debug.Log( } else { // Show results as text Debug.Log( } // Or retrieve results as binary data byte[] results =

56 UnityWebRequest Low-Level API 4 DownloadHandlerBuffer DownloadHandlerTexture DownloadHandlerAssetBundle DownloadHandlerScript 5.4 DownloadHandlerAudioClip

57 UnityWebRequest Low-Level API DownloadHandlerBuffer DownloadHandlerBuffer.data DownloadHandlerTexture

58 UnityWebRequest Low-Level API DownloadHandlerAssetBundle version / hash LoadFromCacheOrDownload LZMA

59 UnityWebRequest Low-Level API DownloadHandlerScript

60 DownloadHandlerScript DownloadHandler.ReceiveData ReceiveData

61 preallocated DownloadHandlerScript ReceiveData 1 preallocated

62 5.3 (LZ4) AssetBundle 5.0

PowerPoint プレゼンテーション

PowerPoint プレゼンテーション Unity はじめるよ ~AssetBundle 基礎 ~ 統合開発環境を内蔵したゲームエンジン http://japan.unity3d.com/ いろんな職業の方が見る資料なので説明を簡単にしてある部分があります正確には本来の意味と違いますが上記理由のためですご了承くださいこの資料内の一部の画像一部の文章は Unity 公式サイトから引用していますアセットバンドルって? アセットバンドルって?