アセット運用ベストプラクティス

by unitydojo

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6OJUZ麣㜥  "TTFU麊欽كأز٥فؙٓذ؍أ

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ࣗݾ঺հ 㿊募麦䕕 ِصذ؍٥ذؙظٗآ٦ؤ٥آٍػٝ ؿ؍٦ٕسؒٝآص،Ⱟ  ؒٞ؋ٝآؑٔأز

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#Unityಓ৔

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6OJUZד،إحز׾ⵃ欽ׅ׷ 㛇燉

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Ξηοτ(Asset) = ࢿ࢈ ΦʔσΟΦɺςΫενϟɺϞσϧɺΞχϝʔγϣϯ ࣭ײɺεΫϦϓτɺͦͷଞॾʑ

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ͱΓ͋͑ͣֆΛग़͢ɺUnityॳ৺ऀ޲͚આ໌ɻ • 6OJUZؒر؍ةך1SPKFDUؽُ٦ח  ،إحز׾سٓحؚسٗحف  • ӴӴ؝ٝه٦طٝزךӛӛח  سٓحؚسٗحف  • 邌爙ׁ׸׋٧ ӟs

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Unityͷಈ࡞ͷʮॳ৺ऀ޲͚ͷઆ໌ʯ • 6OJUZؒر؍ةך1SPKFDUؽُ٦ח  ،إحز׾سٓحؚسٗحف  • ӴӴ؝ٝه٦طٝزךӛӛח  سٓحؚسٗحف  • 邌爙ׁ׸׋٧ ӟs • ،إحز׾؎ٝه٦ز׃ג  ⢪ִ׷䕎ח㢌䳔  • ء٦ٝח،إحز׾ⵃ欽ׅ׷  ؝ٝه٦طٝز堣腉׾欽䠐 • ؒر؍ةד؝ٝه٦طٝزח  ،إحز׾鏣㹀  • 邌爙ׁ׸׋٧ ӟs

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ಈతʹࠩ͠ସ͑ΒΕΔResources • 3FTPVSDFTؿٕؓت⟃♴חꂁ縧׃׋  ،إحز׾ծأؙٔفزַ׵《䖤ׅ׷ • ؿ؋؎ٕせ䭁䓸㶨כ搀׃ד《䖤 • ٔٔ٦أ䖓ח㢌刿⳿勻זְ

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ϦϦʔεޙʹมߋग़དྷΔAssetBundle • ٔٔ٦أ幥ך،فٔח،إحز׾鷄⸇ • BTTFU纇׾䎗אַ勲י׋ CVOEMF ׮ך • 3FTPVSDFTהずׄ״ֲח،إحز׾铣׭׷

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ͦͷଞɻ • +1&(װ1/(ծ#.1瘝ך歗⫷ծ  8"7װ.1瘝ך،إحزה׃ג涫ꐮ׃ג ְזְٔا٦أ׾⹛涸חٗ٦سׅ׷կ • ذؗأز׾湫䱸ٗ٦س׃גծ  㢌䳔׃ג✺ղׅ׷կ

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׮ֲ㼰׃鑫׃ֻկ

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ΞηοτͷΠϯϙʔτ • "TTFUTؿٕؓت⟃♴חؿ؋؎ٕ׾ꂁ縧׃  ،إحز׾؎ٝه٦زׅ׷կ • ؎ٝه٦ز׃׋،إحزכծ  ぐفٓحزؿؓ٦يד铣׭׷ر٦ةח  㢌䳔ծ؜٦يד⢪ִ׷״ֲחז׷կ • ؎ٝه٦ز׃׋،إحزכ4DFOFװ  1SFGBCח涫ꐮ⳿勻׷״ֲחז׷կ

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γʔϯϏϡʔʹΞηοτΛઃఆ͢Δɺͱ͸ • 4DFOFؿ؋؎ٕח؝ٝه٦طٝز׾  鏣㹀׃ծ،إحزפך⿫撑׾涫ꐮׅ׷կ • 䞔㜠כ4DFOFח⥂㶷ׁ׸ծ4DFOF׾  ٗ٦س׃׋ꥷח،إحز׮荈⹛涸ח  ٗ٦سׁ׸׷կ • 1SPKFDUؽُ٦ַ׵%%דؔـآؙؑز׮⡲䧭 ׁ׸׷،إحز׮֮׷4QSJUF瘝 • ؒر؍ةחג✲⵸חء٦ٝח涫ꐮׅ׷կ

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ResourcesͰϩʔυ͢Δɺͱ͸ • 㹋遤儗ח3FTPVSDFTؿٕؓتפせ⵸׾欽ְג،ؙإأ׃ծ،إحز׾《䖤ׅ׷կ  • 《䖤׃׋ⰻ㺁׾أؙٔفزחג  ؝ٝه٦طٝزח鏣㹀ׅ׷կ • 《䖤⳿勻׷ךכ3FTPVSDFTؿٕؓت⟃♴ח  ろ׭׋،إحزך׫կ • ٔٔ٦أ䖓ח䊴׃剏ִ׷✲ָדֹזְ

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AssetBundle͔Βऔಘ͢Δɺͱ͸ • 6OJUZָ⢪欽〳腉ז،إحز׾  ♧א⟃♳呓秛ׅ׷،٦ؕ؎ـ • ٔٔ٦أ䖓ח،إحزך鷄⸇٥䊴剏ָ〳腉דծ㹋遤儗ח،إحز׾ٗ٦س׃ג⢪ֲկ • "TTFU#VOEMFず㡦ך⣛㶷ꟼ⤘׾邌爙ׅ׷.BOJGFTU  "TTFU#VOEMFח،إحز׾呓秛ׅ׷"TTFU"TTFUCVOEMF  "TTFU#VOEMFחء٦ٝ׾呓秛ׅ׷4USFBNFE4DFOF"TTFU#VOEMFָ֮׷կ 

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StreamedSceneAssetBundle • 4USFBNFE4DFOF"TTFU#VOEMF  "TTFU#VOEMFחء٦ٝ׾呓秛׃ծ  4DFOF.BOBHFSַ׵ㄎן⳿ׇ׷կ • "TTFU#VOEMFחכء٦ٝ䞔㜠הծ  ء٦ָٝ⿫撑ׅ׷،إحز纇ָろת׸׷կ

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Assetͷґଘؔ܎ "TTFU#VOEMFַ׵،إحز׾《䖤ׅ׷ꥷծ  ⿫撑⯓ך"TTFU#VOEMFָٗ٦سׁ׸גְ׸ל  ➭ך"TTFU#VOEMFָ䭯א،إحز׾ٗ٦س׃גֻ׸׷կ JDPO"# QSFGBC"#

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AssetBundle Manager • AssetBundleͷ্ҐϨΠϠʔʢ༧ఆ • AssetBundle͔Β  μ΢ϯϩʔυग़དྷΔ

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AssetBundle Manager • AssetBundleΛϏϧυͤͣAssetBundle͔Β  ΞηοτΛऔಘ͢ΔγϛϡϨʔλʔػೳ • ϩʔΧϧαʔόʔΛߏங͢ΔLocal Serverػೳ • ίʔυΛॻ͔ͣAssetBundleΛϏϧυ͢ΔBuildػೳ

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،إحز麊欽كأز٥فؙٓذ؍أ

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ך⵸ח˘

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كأز٥فؙٓذ؍أ  剑黝鍑

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剑黝鍑כ朐屣ח״׏ג殯ז׷

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Ⰻגכزٖ٦سؔؿ

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剑黝鍑׾濼׷捀חכծ  ٕ٦ٕה鼅䫛肇׾䪾䳢ׅ׷կ

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姻׃ְ鼅䫛肇׾䖤׷捀ח

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׮׏ה׮׏ה鑫׃ֻկ

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،إحزהؔـآؙؑزך  ءٔ،ٓ؎ؤחאְג

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γϦΞϥΠζɺͱ͸ • ؔـآؙؑزך朐䡾׾⥂㶷ծ  鷞חؔـآؙؑزח䗁⯋〳腉חׅ׷կ • 6OJUZכ،إحزך麊欽ך㣐鿇ⴓ׾  ֿךءٔ،ٓ؎ؤ䪮遭ח⣛㶷׃גְ׷կ

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ྫ͑͹PrefabͱSceneͷؔ܎ 圓鸡׾⥂㶷

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،إحز QSFGBCװTDFOF ྫ͑͹ΦϒδΣΫτͱΞηοτͷؔ܎ ⿫撑䞔㜠׾⥂㶷

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PrefabΛγϦΞϥΠζ ،إحزפך⿫撑 ،إٝـٔפך⿫撑㶨QSFGBC ⽃♧ך  ءٔ،ٓ؎ؤ׃׋ر٦ة

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PrefabΛσγϦΞϥΠζ ،إحزפך⿫撑 ،إٝـٔפך⿫撑㶨QSFGBC 醱꧟זؔـآؙؑز圓鸡

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ΞηοτΠϯϙʔτॲཧ΋ɻ • Texture΍AudioɺModel౳ωΠςΟϒσʔλΛࢀর͢Δ  UnityEngine.ObjectΛγϦΞϥΠζʢʹΠϯϙʔτʣ

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ωΠςΟϒσʔλʁ ع٦سؐؑ،ח״׏גؿؓ٦وحزָ  寸㹀׃גְ׷暟կ 䭷㹀ךؿؓ٦وحزדזְהծ  ⵃ欽ׅ׷✲ָדֹזְ ⢽ִלQWSUDծFUD瘝ךذؙأثٍر٦ة  PHHծNQ瘝ךؔ٦ر؍ؔر٦ةկ ؿؓ٦وحزכفٓحزؿؓ٦يח⣛㶷ׅ׷ךדծ  ؙٙٝحءّٝ縧ְկ

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ΞηοτΠϯϙʔτॲཧ΋ɻ • Texture΍AudioɺModel౳ωΠςΟϒσʔλΛࢀর͢Δ  UnityEngine.ObjectΛγϦΞϥΠζʢʹΠϯϙʔτʣ  • UnityEngine.ObjectΛܦ༝ͯ͠ɺScene΍Prefab͔Β  ωΠςΟϒσʔλ΁ؒ઀తʹΞΫηεՄೳʹ͢Δɻ

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6OJUZ&OHJOF0CKFDU UFYUVSF ،إحز ،إحزהر٦ةכ Πϯϙʔτ

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6OJUZ&OHJOF0CKFDU  ،إحز UFYUVSF QSFGBCװTDFOF ط؎ذ؍ـ  ر٦ة ءٔ،ٓ؎ؤ  朐䡾׾⥂㶷ⱄ植〳腉ח

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6OJUZ&OHJOF0CKFDU UFYUVSF QSFGBCװTDFOF (6*%-PDBM*%  穗歋ד،ؙإأ NFUB ࢀরͷྲྀΕʢΤσΟλʣ

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GUID? 6OJUZכ،إحز׾陎ⴽׅ׷ꥷծ  ꅾ醱׃זְ*%(6*%ד،إحز׾  陎ⴽ׃גְ׷կ (6*%כ؎ٝه٦ز儗ח鏣㹀ׁ׸ծ  NFUBر٦ةָ㣟׻׸זְꣲ׶ծ笝䭯ׁ׸׷ ػأװؿ؋؎ٕせָ㢌⻉׃ג׮  ⿫撑ָ㢩׸זְ捀ך倵瘻

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.meta? ،إحز׾؎ٝه٦ز儗ח⡲䧭ׁ׸׷  ،إحزせNFUBךؿ؋؎ٕկ ،إحزהずػأח⡲䧭ׁ׸׷կ NFUB׾婍׃׋תתؿ؋؎ٕ׾  ♳剅ֹׅ׷✲דծ⿫撑װ鏣㹀׾笝䭯׃׋תת ،إحز׾刿倜⳿勻׷կ ⴱ劍鏣㹀כꦀ׃ؿ؋؎ٕחז׏גְ׷կ

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Local ID? 4QSJUFװ.PEFM瘝ծ،إحزכⰻ鿇ח  醱侧ך،إحز׾䭯א✲ָ֮׷կ ׉ְֲ׏׋،إحز纇כծ(6*%הכⴽח  -PDBM*%חג陎ⴽׅ׷կ NFUBח鎸鶢ׁ׸גְ׷  ך䖓ך侧㶵ָ-PDBM*%

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ͦͷଞɺGUIDΛׂΓ౰ͯΒΕΔΞηοτ • ScriptableObject  ʢಠࣗͷσʔλܕΛఆٛ͢ΔͨΊͷϑΥʔϚοτɻ  ɹUnityΤϯδϯ͕γϦΞϥΠζ/σγϦΞϥΠζ͢Δʣ • Monobehaviour  ʢಛఆͷΞηϯϒϦͷ໊લۭؒ.Ϋϥε΁ͷࢀরΛอ࣋͢Δ)

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את׶ծ

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את׶ծ6OJUZ&OHJOF0CKFDUדٓحؾؚٝ׃ծ  ⿫撑ꟼ⤘׾⚵׀ה⥂㶷׃גְ׷կ

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،إحزխխխխխכ⡦儗ٗ٦سׁ׸׷ך ط؎ذ؍ـر٦ة فٖعـ

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ΞηοτͷϥΠϑαΠΫϧ • ωΠςΟϒσʔλ͸UnityEngine.ObjectΛ  ܦ༝ͯ͠ϩʔυ͞ΕΔɻ • ࣮ߦ࣌͸ɺGUIDͱLocal IDΛม׵ͨ͠Instance IDͰ  ΞηοτΛࢀর͢Δʢߴ଎Խͷҝʣ • ෆཁʹͳͬͨΒΞϯϩʔυ͢ΔɻInstance ID͸࢒Δ

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6OJUZ&OHJOF0CKFDU QSFGBCװTDFOF *OTUBODF*%׾ؒٝآٝח涫ꐮ ΞηοτͷϥΠϑαΠΫϧ

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6OJUZ&OHJOF0CKFDU QSFGBCװTDFOF *OTUBODF*%穗歋ד  ،ؙإأ ΞηοτͷϥΠϑαΠΫϧ

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6OJUZ&OHJOF0CKFDU UFYUVSF QSFGBCװTDFOF ذؙأثٍ׾ٗ٦س ΞηοτͷϥΠϑαΠΫϧ

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6OJUZ&OHJOF0CKFDU UFYUVSF QSFGBCװTDFOF ⿫撑⯋׾搀ֻׅ ΞηοτͷϥΠϑαΠΫϧ

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6OJUZ&OHJOF0CKFDU UFYUVSF ذؙأثٍ׾،ٝٗ٦س  *OTUBODF*%כ婍׷ ΞηοτͷϥΠϑαΠΫϧ

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ΞηοτΛϩʔυ͢ΔγφϦΦ • Instance ID͕ࢀর͞ΕΔʢSceneɾPrefab౳͔Βʣ • AssetBundle.Load΍Resources.Load౳͔ΒͷΞΫηε

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ΞηοτΛΞϯϩʔυ͢ΔγφϦΦ • Resources.UnloadAssets • Resources.UnloadUnusedAssets • AssetBundle.Unload(true) • SceneManager.LoadScene(LoadSceneMode.Single)

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Ξϯϩʔυग़དྷͳ͍έʔε 稢ְַ眔㔲ד،إحز׾⵴ꤐ⳿勻׷6OMPBE"TTFUTװ "TTFU#VOEMF6OMPBE USVF כ*OTUBODF 醱醡ׁ׸׋ ،إحزװؔـآؙؑز׾嶊ׇזְկ %FTUSPZד嶊ַׅծ-PBE4DFOFד⚵׀ה  ء٦ٝ׾װ׶湫ׅկ

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3FTPVSDFTחאְג

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Resourcesͷಛ௃ • ςΩετϕʔεͰInstance IDʹΞΫηε • ೚ҙͷΞηοτΛҾ͖ग़ͤΔ • ResourcesϑΥϧμҎԼʹ഑ஔͨ͠ΞηοτΛొ࿥

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Resourcesͷ಺෦ಈ࡞ • ،فٔ饯⹛儗חⴱ劍⻉Ⳣ椚ָ饥׶ծ  *OTUBODF*%הؿ؋؎ٕせהؿٕؓتػأ ׾ٍؗحءُׅ׷կ • ،فٔ饯⹛儗ծ俑㶵⴨،ؙإأך捀ך  ٕحؙ،حفذ٦ـٕ׾⡲׷կ • ⽃♧ךؿ؋؎ٕחءٔ،ٓ؎ؤׁ׸׷կ

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3FTPVSDFT 3FTPVSDFTQSFGBC "TTFU NBUFSJBM "TTFU UFYUVSF "TTFU BOJNBUJPO 3FTPVSDFTQSFGBC "TTFU NBUFSJBM "TTFU UFYUVSF

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ResourcesͷσϝϦοτ • ResourcesϑΥϧμΛෆద੾ʹ࢖͏ͱɺ  ΞϓϦͷىಈ࣌ؒ΍Ϗϧυ͕࣌ؒ৳ͼΔ • ΞηοτΛ௥Ճग़དྷͳ͍ҝɺΧελϜίϯςϯπΛ഑৴ग़དྷͳ͍ • ࠩ෼ߋ৽͕ग़དྷͳ͍ • Ξηοτ͸ѹॖ͞Εͳ͍ • Android͸ΞΫηεʹ௥Ճίετ͕ൃੜ͢Δ

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ResourcesϑΥϧμΛෆద੾ʹ࢖͏ 3FTPVSDFTؿٕؓت⟃♴חⰋגך،إحز׾ 縧ֻהծ花㣐זⴱ劍⻉Ⳣ椚ָ涪欰ׅ׷կ ،إحزך侧ח䘔ׄג  ٕحؙ،حفذ٦ـٕ׮䎢ָ׷  /MPH/ ד

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"TTFU#VOEMFחאְג

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AssetBundleͷಈ࡞ • "TTFU#VOEMF׾ٗ٦سׅ׷הծ "TTFU#VOEMFⰻחろת׸׷،إحزך *OTUBODF*%ָ铣׫鴥ת׸׷կ • "TTFU#VOEMF׾騖ְ׌⣛㶷ꟼ⤘׾  鏣㹀ׅ׷✲ָ⳿勻׷կ • "TTFU#VOEMFך䭯אط؎ذ؍ـر٦ةפ  *OTUBODF*%׾穗歋׃ג،ؙإأ "QQ "TTFU#VOEMF JOTUBODF*%T  姻然חכ*OTUBODF*%׾⡲׷暟 /BUJWF%BUB 0CKFDUT

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AssetBundleͷಈ࡞ • "TTFU#VOEMF׾ٗ٦سׅ׷הծ "TTFU#VOEMFⰻחろת׸׷،إحزך *OTUBODF*%ָ铣׫鴥ת׸׷կ • "TTFU#VOEMF׾騖ְ׌⣛㶷ꟼ⤘׾  鏣㹀ׅ׷✲ָ⳿勻׷կ • "TTFU#VOEMF׾6OMPBEׅ׷הծ  *OTUBODF*%ָ㣟׻׸׷կ • 3FTPVSDFTהず圫ծ湫䱸⿫撑׃גְ׷، إحزך侧ח״׶ծ俑㶵،ؙإأ欽ך  ٕحؙ،حفذ٦ـָٕ䎢ָ׷կ • "TTFU#VOEMF㔐חאֹ։LCך  ًٌٔ嶊顤ה⫦ַזָ׵㾜Ꟛך  ؔ٦غ٦قحسָ֮׷

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AssetBundleͷґଘؔ܎ ➭ך"TTFU#VOEMFח⣛㶷׃גְ׷㜥さծ  *OTUBODF*%׾⯋ח⿫撑׾鍑寸ׅ׷կ ⣛㶷⯓ך*OTUBODF*%ָ鋅אַ׵זְ㜥さծ  .JTTJOHח鏣㹀ׁ׸׷կ NJTTJOH䖓ד׮*OTUBODF*%ָ鍑寸ׁ׸׸ל  ⣛㶷ꟼ⤘כ䗁崞ׅ׷կ

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AssetBundleͷґଘؔ܎ "TTFU#VOEMF׾6OMPBEׅ׷הծ*OTUBODF*% ׾1FSTJTUFOU.BOBHFSַ׵《׶♴־׷կ ♧䏝《׶♴־׋*OTUBODF*%כ䗁崞⳿勻׆ծ ⱄٗ٦س儗ח倜׃ְ*OTUBODF*%ָⶴ׶䮶׵ ׸׷կ ⿫撑⯓׾6OMPBE׃׋㜥さծ⿫撑⯋׮6OMPBE ׃ⱄ䏝-PBEׅ׷䗳銲ָ֮׷կ

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AssetBundle.Unload "TTFU#VOEMF6OMPBE USVF "TTFU#VOEMFַ׵䲿⣘׃׋Ⰻגך  *OTUBODF*%׾䭯א،إحز׾䓼ⵖ涸ח  Ꟛ佝׃ծ*OTUBODF*%׮⵴ꤐׅ׷կ "TTFU#VOEMF6OMPBE GBMTF "TTFU#VOEMFַ׵䲿⣘׃׋*OTUBODF*%  ׾⵴ꤐׅ׷կ

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AssetBundleͷ෼ׂ਺ -;."ך㜥さծ؟؎ؤָ㣐ְֹהꬊ䌢ח  ꞿְٗ٦ر؍ؚٝ儗꟦ָ涪欰ׅ׷կ $BDIF0S%PXOMPBEךٍؗحءُ׾ⵃ欽ׅ׷✲ ד넝鸞דٗ٦سָ〳腉חז׷ָծ  侧ָ㢳ֺׅ׷ה饯⹛儗ח頾蚚חז׷կ -PBE"MM"TTFUTכך،إحز׾♧䭍ד铣׬ז ׵לծ鷵如ٗ٦س״׶׮傍ְַ׮׃׸זְկ

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AssetBundleͷ෼ׂ਺ "TTFU#VOEMFך侧ָ㼰זְ • ًٌٔ⢪欽ꆀָ㟓ִ׷  NFNPSZ瘝ד铣׬ה • 铣鴥儗꟦ָ⠼ן׷  M[NBד铣׬ה • "TTFU#VOEMFךؽٕس儗ծ  ⱄ圓眠ך堣⠓ָ㟓ִ׷ "TTFU#VOEMFך侧ָ㢳ְ • ؽٕسח儗꟦ַַָ׷ • ٔا٦أوطآًٝزָꬊ䌢ח醱꧟ • تؐٝٗ٦س儗꟦ָ⠼ן׷  醱侧ךؿ؋؎ٕ׾糺׭גְזְ㜥さ

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҉໧ͷࢀরͱॏෳΞηοτ • AssetBundle͸௚઀assetbundle nameΛࢦఆ͠ͳ͍  Ξηοτ΋AssetBundleʹؚΊΔɻ • طʹInstance IDׂ͕ΓৼΒΕ͍ͯͨ৔߹ɺ  ৽͘͠Instance IDΛׂΓৼΒΕΔɻ

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"TTFU#VOEMF "TTFU#VOEMF ⴽך*OTUBODF*%ָ  ⶴ׶䮶׵׸׷

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SFTPVSDF"TTFU#VOEMF "TTFU#VOEMF "TTFU#VOEMF

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AssetBundleͷѹॖ ꬊ㖇簭 -; -;."

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AssetBundleͷѹॖ • ඇѹॖɿѹॖ͠ͳ͍ҝɺϑΝΠϧαΠζ͸େ͖͍ɻ  ɹɹɹɹμ΢ϯϩʔυग़དྷΕ͹ΞΫηε͸࠷଎ɻ • LZ4ɹɿLZMAฒͷߴ͍ѹॖ཰ͱɺඇѹॖฒͷղౚ଎౓ɻ  ɹɹɹɹUnity 5.3Ҏ߱ʹ࢖༻Մೳɻ • LZMAɿ࠷΋ߴ͍ѹॖ཰ɻ࠷΋஗͍ղౚ଎౓ɻ  ɹɹɹղౚ͢Δʹ͸ɺҰ୴શͯϝϞϦʹల։͢Δඞཁ͕͋Δɻ

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AssetBundleͷಡࠐ • AssetBundle.LoadFromFile • AssetBundle.LoadFromMemory  (WWW.assetBundle) • WWW.CacheOrDownload

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AssetBundleͷಡࠐ • AssetBundle.LoadFromFile • چ໊CreateFromFile • ϔομΛಡΈɺϩʔΧϧετϨʔδ΁௚઀ΞΫηε͢Δɻ • ※ΤσΟλ͸LoadFrommemoryAsyncͷΑ͏ͳಈ࡞Λߦ͏ҝɺ  ɹएׯͷΦʔόʔϔου͕͋Δɻ • LZMAΛಡΉ৔߹ɺLoadFromMemoryͱಉ༷ͷಈ࡞ɻ

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0 30 60 90 120 ඇѹॖ LZ4 LZMA ϔομʔ AssetBundle Ξηοτ -PBE'SPN'JMFT

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AssetBundleͷಡࠐ • AssetBundle.LoadFromMemory • چ໊CreateFromMemory • ϝϞϦ͔ΒAssetBundleΛߏங͠ɺϩʔυ͢Δ • LZ4ͷ৔߹ɺϝϞϦʹͦͷ··ίϐʔ͢Δɻ  LZMAͷ৔߹ɺશͯղౚ͠LZ4΁࠶ѹॖ͢Δʢ5.3Ҏ߱ʣ • AssetBundleΛ҉߸Խ͢Δ৔߹ʹͷΈ͓קΊ

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0 75 150 225 300 ඇѹॖ LZ4 LZMA ϔομʔ AssetBundle ΤϯδϯϝϞϦ Ξηοτ -PBE'SPN.FNPSZ

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0 100 200 300 400 ඇѹॖ LZ4 LZMA ϔομʔ WWW AssetBundle ΤϯδϯϝϞϦ Ξηοτ 888BTTFU#VOEMF

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AssetBundleͷಡࠐ • WWW.CacheOrDownload • ΞηοτΛμ΢ϯϩʔυ͠ɺUnityͷΩϟογϡγεςϜͰΩϟογϡ͢Δ • LZ4ٴͼແѹॖͷ৔߹ɺϝϞϦʹͦͷ··อଘ͢Δ  LZMAͷ৔߹ɺղౚ͠LZ4΁࠶ѹॖ͢Δʢ5.3Ҏ߱ʣ • ىಈ࣌ʹΩϟογϡͷ༗ແ΍࡟আ൑ఆΛߦ͏ • 2ճ໨Ҏ߱͸Ωϟογϡ͔Βऔಘ͢Δ

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0 75 150 225 300 ඇѹॖ LZ4 LZMA ϔομʔ AssetBundle ΤϯδϯϝϞϦ Ξηοτ $BDIF0S%PXOMPBEⴱ㔐

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0 15 30 45 60 ඇѹॖ LZ4 LZMA ϔομʔ ΤϯδϯϝϞϦ Ξηοτ $BDIF0S%PXOMPBEٍؗحءُ״׶《䖤

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AssetBundleͷಡࠐ • UnityWebRequest & DownloadHandler • AssetBundleΛϩʔΧϧετϨʔδʹμ΢ϯϩʔυ͠ɺΩϟογϡ͢Δɻ • LZ4ͷ৔߹ɺϝϞϦʹͦͷ··ίϐʔ͢Δɻ  LZMAͷ৔߹ɺશͯղౚ͠LZ4΁࠶ѹॖ͢Δʢ5.3Ҏ߱ʣ • WWW.CacheOrDownloadͱൺֱ͠ɺσʔλͷॲཧΛࢦఆ͢Δ͜ͱͰώʔϓΛ཈͑ΒΕΔ

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0 17.5 35 52.5 70 ඇѹॖ LZ4 LZMA ϔομʔ WebRequest Ξηοτ -PBE'SPN.FNPSZ

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AssetBundleͷΞηοτͷಡΈࠐΈ • LoadAsset • LoadAllAssets • LoadAssetWithSubAssets • AsyncΛ෇͚Δͱඇಉظ

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AssetBundleͷΞηοτͷಡΈࠐΈ • LoadAsset  ୯ҰͷΞηοτΛऔΓग़͢ • LoadAllAssets  AssetBundle͕಺แ͢Δɺ௚઀ࢀরՄೳͳΞηοτΛશͯऔΓग़͢  શମͷ2/3Λ࢖༻͢Δ৔߹ɺLoadAssetΑΓޮ཰త • LoadAssetWithSubAssets  αϒΞηοτʢLocalIDͷؔΘΔΞηοτʣΛऔΓग़͢

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AssetBundleͷΞηοτͷಡΈࠐΈʢඇಉظʣ • AsyncΛઃఆ͢ΔͱɺΞηοτͷಡࠐΛ  ϫʔΧʔεϨουͰߦ͏ɻ • 1ϑϨʔϜͷॲཧ࣌ؒ͸ThreadPriorityͰઃఆ  High- ࠷େ50ϛϦඵɺNormal - 10ϛϦඵ  BelowNormal - 4ϛϦඵɺLow - 2ϛϦඵ

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AssetBundleͷΞηοτͷಡΈࠐΈʢඇಉظʣ • 5.1Ͱ͸ɺ1ϑϨʔϜ1Ξηοτͱ͍͏Ṗಈ࡞Λ͍ͯͨ͠ɻ  ʢͦͷҝɺϩʔυ͢ΔΞηοτʹΑͬͯఀࢭ࣌ؒʹόϥ͖͕ͭ͋ͬͨʣ • 5.2·Ͱ͸ɺLoadAllAssetsAsyncͱLoadAssetWithSubAssetAsync͕େ෯ ʹ஗͍ෆ۩߹͕͋ͬͨɻ • 5.3͔ΒUnityEngine.Objectͷϩʔυ΋ϫʔΧʔεϨουͰ࣮ߦ͢Δɻ  ฒྻҰׅͰॲཧ͠ɺϩʔυ׬ྃޙʹAwake͕ݺ͹ΕΔɻ

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಺ଂΩϟογϡγεςϜ • LoadFromCacheOrDownload΋͘͠͸ DownloadHandlerAssetBundleΛ࢖༻͢Δͱɺ  ಺ଂΩϟογϡγεςϜΛ࢖༻͢Δɻ • LZMAΛΩϟογϡ͢ΔࡍɺLZ4΁࠶ѹॖ͢Δࣄ͕Ͱ͖Δɻ • Ωϟογϡͨ͠AssetBundle͸ɺLoadFromFilesͰ  ௿ίετͰΞΫηεग़དྷΔɻ

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಺ଂΩϟογϡγεςϜͷಈ࡞ • 䭷㹀ך"TTFU#VOEMFָ֮׸לٍؗحءַُ׵《䖤׃ծ搀ֽ׸לتؐٝٗ٦سׅ׷կ  ⡎׃ծغ٦آّٝ׾♳־ג׮傊غ٦آّٝ׾⵴ꤐ׃זְկ • Ωϟογϡͷॲཧ͸ϫʔΧʔεϨουͰߦ͏ɻ • ෳ਺Λಉ࣌ʹ૸ΒͤΔͱOSͷಉ࣌ΞΫηεݶք਺ʹୡ͢ΔʢಛʹϞόΠϧʣ

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಺ଂΩϟογϡγεςϜͷಈ࡞ • 饯⹛儗חٍؗحءُך剑穄⢪欽傈׾然钠׃גծ  劢⢪欽劍꟦ָ䭷㹀劍꟦׾麓ֺגְ׸ל⵴ꤐׅ׷կ • أزٖ٦آָ♧匈חז׷הծ劢⢪欽ך،إحزַ׵⵴ꤐׅ׷կ • "TTFU#VOEMFך陎ⴽכؿ؋؎ٕせ • 䭷㹀ך"TTFU#VOEMF׾僇爙涸ח⵴ꤐׅ׷"1*ָ搀ְ  铎׏׋DSD׾䭷㹀ׅ׷ה⵴ꤐׁ׸׷

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಺ଂΩϟογϡγεςϜ ًٔحز -;."׾تؐٝٗ٦س׃׋㜥さד׮ծ  խ-;׾⢪欽⳿勻׷կ ה׶ִ֮׆⢪ִ׷ رًٔحز - 稢ְַ،إحز盖椚ָדֹזְկ - ،إحزָ㟓ִֺׅ׷הծ،إحزך剣搀 ثؑحؙ瘝ד儗꟦ַַָ׷կ

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ΩϟογϡγεςϜΛࣗ࡞͢Δ৔߹ • WWWΫϥε͸bytesΞΫηε༻ʹʢΤϯδϯଆ͕ʣ  ϝϞϦΛ֬อ͍ͯ͠ΔҝɺϝϞϦΛ༨ܭʹ࢖͏ɻ • ਪ঑ • HttpWebRequest ɹ(PC͸ݱࡏHTTPSΛ࢖͑ͳ͍ʣ • ωΠςΟϒϓϥάΠϯ  ʢΦϯσϚϯυϦιʔε(iOS)ɾDownloadManager(android)  ɹNSURLConnection(iOS) ɾjava.net.HttpURLConnection(Androidʣ)

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،إحز麊欽كأز٥فؙٓذ؍أ  ⟎

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ಉҰͷཁૉΛେྔʹؚΜͩPrefab͸ආ͚Δ • ΦϒδΣΫτ͸શͯͦͷ··γϦΞϥΠζ͞ΕΔҝɻ • ྫ͑͹ಉҰͷPrefabΛ30ݸίϐʔͯ͠ϦετϏϡʔΛ ࡞ͬͨ৔߹ɺಉ͡σʔλΛ30ճσγϦΞϥΠζ͢Δɻ • ୯ҰͷPrefabΛInstantiateΛ࢖༻ͯ͠  ෳ੡ͨ͠ํ͕ɺएׯޮ཰తɻ

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Resources • Resources/AssetBundleʹ͸ɺ  ௚઀ࢀর͠ͳ͍Ξηοτ͸ؚΊͳ͍ɻ • ResourcesͷΞηοτ͸ग़དྷΕ͹ݮΒ͢ɻ

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ResourcesΛ࢖Θͳ͍ʢUnityࣾ಺ͷ͓קΊʣ • Resources͸ϓϩτλΠϓ༻ͱׂΓ੾Δ • ৗʹΞΫηε͢Δඞཁ͕͋ΔɺΞηοτʹͷΈ࢖͏

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ResourcesΛ࢖Θͳ͍…ʢͲ͏͢ΜͶΜ…ʣ ،فٔח"TTFU#VOEMF׾ろ׭ג׃תֲկ  4USFBNJOH"TTFUT瘝 "OESPJEכBQLⰻ[JQⰻח4USFBNJOH"TTFUTָ֮׶ -PBE'SPN'JMFד،ؙإأ⳿勻זְ׋׭ծ $BDIF0S%PXOMPBEװ⡦׵ַך䩛ד《׶⳿ׅկ పఈ͢Δ͜ͱͰɺ։ൃΛ໘౗ʹग़དྷΔɻ  ʢResourcesΛ࢖༻͢Δͷͱൺֱͯ͠ʣ

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AssetBundleͷ෼ׂ • ࿦ཧΤϯςΟςΟ • λΠϓͷάϧʔϓ • ಉ࣌ίϯςϯπͷάϧʔϐϯά • 1Asset 1AssetBundle • Ұͭʹ߆ΒͣɺέʔεόΠέʔεͰ࢖͍෼͚Δ

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AssetBundleͷ෼ׂ • ࿦ཧΤϯςΟςΟ • DLC౳ʹ࢖͍΍͍͢ϑΥʔϚοτ • ϨΠΞ΢τ΍UI • ΩϟϥΫλʔ • ڞ༗͢ΔഎܠͷϞσϧ΍ςΫενϟ

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AssetBundleͷ෼ׂ • λΠϓͷάϧʔϓ • ಉλΠϓͷΞηοτʢTexture΍AudioʣΛҰͭʹ·ͱΊΔ • ਺͕গͳ͘ɺϩʔΧϧ͔Β઀ଓ͢ΔͳΒجຊܨ͗ͬͺͳ͠ͰOK

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AssetBundleͷ෼ׂ • ಉ࣌ʹ࢖༻͢ΔίϯςϯπͰάϧʔϐϯά • ඞཁʹͳΔΞηοτΛɺඞཁͳ෼͚ͩϩʔυ͢Δɻ • SceneΛAssetBundleԽ͓ͯ͘͠࢖͍ํ • Կ౓΋࢖༻͢ΔΞηοτ͸෼ׂ͢Δ • ଟগͷΞηοτͷॏෳ͸ؾʹ͠ͳ͍

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AssetBundleͷ෼ׂ • ̍Ξηοτ̍Ξηοτόϯυϧ • ݸผʹΞηοτΛऔಘ͢Δ • ΧʔυήʔϜ౳Ͱ༗ར • ґଘؔ܎ͷղܾ͸εΫϦϓτͰߦ͏ • γΣʔμʔ౳ͷ҉໧ͷϩʔυΛݟམͱ͢ͱ༨ܭͳίετ͕ग़Δࣄ͕͋Δ • 5.3ະຬͰAssetBundleΛ࢖༻͢Δ৔߹͸࠷దղ͔΋͠Εͳ͍  ʢLZMA͕େ͖ͳαΠζͰۃ୺ʹ஗͘ͳΔҝʣ

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ґଘઌAssetBundle͸Unload͠ͳ͍ • Ξηοτͷ։์ͷΈΛߦ͍ɺAssetBundle͸ҡ࣋͢Δɻ • Ξηοτͷෳ੡ʹΑΔϝϞϦɾϩʔυίετΛ๷͙ • Loadҡ࣋ʹ΋ίετ͕͋ΔͷͰɺέʔεόΠέʔεͰɻ • ෼ׂ਺ʹ΋ґΔ

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AssetBundle͸ͲͷѹॖΛ࢖͏΂͖͔ • ϩʔυ଎౓Λ্͍͛ͨ৔߹ɿɹඇѹॖʢ࠷଎ʣ LZ4ʢόϥϯεʣ • Ϗϧυ͕࣌ؒ໰୊ͳ৔߹ɹɿɹඇѹॖʢѹॖॲཧ͕ແ͍ʣ • ΞϓϦαΠζ͕໰୊ͳ৔߹ɿɹLZMAʢѹॖ཰࠷ߴʣ • ࢖༻ϝϞϦ͕໰୊ͳ৔߹ɹɿɹLZ4 or ඇѹॖ • ௨৴͕࣌ؒ໰୊ͳ৔߹ɹɹɿɹLZMAʢཁCacheOrDownloadܥ)

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AssetBundleͷμ΢ϯϩʔυ͸Ͳ͏΍Δʁ • 5.3Ҏ߱͸WebRequest͕͓קΊ • WWW͸ආ͚Δ • CacheOrDownloadΛ࢖͏ͳΒ͹ɺ  ώʔϓ͕๲ΒΈա͗ͳ͍Α͏ʹ͢Δɻ

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ʮϕετϓϥΫςΟεʯΛ৴͡ͳ͍ • ؀ڥ΍ήʔϜʹΑͬͯ࠷దղ͸ҟͳΔɻ

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ʮϕετϓϥΫςΟεʯΛ৴͡ͳ͍ • ؀ڥ΍ήʔϜʹΑͬͯ࠷దղ͸ҟͳΔɻ • Stay alert! Trust no one! Keep your laser handy!

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