AssetBundle と TextureCompression のおはなし

1. AssetBundle ͱ TextureCompression ͷ͓͸ͳ͠ ʙMobile Platform ʹԙ͚ΔϦιʔε؅ཧʙ גࣜձࣾΩοζελʔ ৿ɹ఩࠸
2. ͜Μ͹Μ͸ʂ • Unityɺ࢖ͬͯ·͔͢ʂʁ • Unityɺָ͍͠Ͱ͢Ͷʂ • ࠓ೔͸ AssetBundle ͱ Texture ѹॖʹͭ ͍ͯޠΓʹདྷ·ͨ͠ʂʂ
3. ͱɺͦͷલʹ…ɻ
4. Who am I ? • “৿ɹ఩࠸” ͱਃ͠·͢ɻ • a.k.a. ΋ΜΓ͌ / T: @monry / F: ຊ໊ • 29ࡀ / ˁ / Oܕ / ఱṝ࠲ / طࠗ / झຯ: ߹ এ • झຯ͸ʮ͓ञʯͱʮ߹এʯͰ͢ɻ
5. Who am I ? • “גࣜձࣾΩοζελʔ” ͬͯձࣾͰಇ͍ͯ·͢ɻ • ະबֶࣇʙখֶੜͷ͓ࢠ͞·Λ͓࣋ͪͷϑΝ ϛϦʔΛλʔήοτʹͨ͠஌ҭ/ڭҭʹؔΘΔ ΞϓϦɾαʔϏεΛల։͓ͯ͠Γ·͢ɻ ͑͜΄Μ ৿ͷ͑΄Μؗ ͳΓ͖Γ!! ͬ͜͝ϥϯυ ύζϧ&ςΠϧζ
6. Ϩδϡϝ • AssetBundle ʹ͍ͭͯ • TextureCompression ʹ͍ͭͯ
7. લఏ • େલఏͱͯ͠ɺ2D ͷ͓࿩͠Ͱ͢ʂ • ΋ͬͱݴ͏ͱ NGUI ʹݶఆͯ͠·͢ • iOS / Android ͳϞόΠϧ؀ڥ • Unity 4.x (Pro) / NGUI 2.6.x • Pro ൛͡Όͳ͍ͱ AssetBundle Λ Build Ͱ͖ͳ͍ • AssetBundle ͷ࿩͕8ׂͰ͢ :-P • ؒҧͬͨ͜ͱݴ͏͔΋஌Ε·ͤΜ͕ɺποίϛେ׻ܴͰ͢ʂʂ
8. AssetBundle ͷ֓ཁ • ͦ΋ͦ΋ AssetBundle ͬͯ…ʁ • Asset Λ Bundle ͨ͠Ϟϊ • ૉࡐΛవΊͯҰͭͷϑΝΠϧͱͯ͠ѻ͏ ͨΊͷٕज़ • Α͋͘Δॳճμ΢ϯϩʔυͱ͔ • ιγϟήͷΧʔυͷը૾ͱ͔
9. AssetBundle ͷ֓ཁ • ͜Μͳͷɻ(એ఻͡Όͳ͍Ͱ͢Αʁ͆)
10. AssetBundle ͷ௕ॴ • Unity ͕ղऍग़དྷΔϞϊͳΒ٧Ί์୊ • ͨͩ͠ɺiOS ͸ JIT ࣮ߦෆՄ • WWW ΫϥεΛܦ༝ͯ͠औಘ • Ωϟογϡͱ͔Α͠ͳʹ΍ͬͯ͘ΕΔ • όʔδϣχϯάʹ΋ରԠ
11. AssetBundle ͷ୹ॴ • جຊతʹαʔόඞཁ • Content-Type: application/vnd.unity Λཁฦ٫ • ϑΝΠϧ໊ϢχʔΫ • basename Ͱ൑ఆ͞ΕΔ • σΟϨΫτϦ۷ͬͯ؅ཧͱ͔ᶡ • ϓϥοτϑΥʔϜຖʹผϑΝΠϧ
12. AssetBundle ͷӡ༻ • ͡Ό͋ɺͦͷล౿·͑ͯɺͲ͏΍Δ ͷʁͬͯͳ͓࿩͠Λɻ • ͔͜͜Βઌ͸ɺฐࣾͰͷࣄྫΛϕʔε ʹਐΊ·͢ɻ • ҰͭͰ΋ࢀߟʹͳΔϞϊ͕͋Ε͹޾͍ Ͱ͢ɻ
13. AssetBundle ͷ؀ڥ • ॳճϦιʔεμ΢ϯϩʔυ • 2ճ໨Ҏ߱͸ Cache ೚ͤ Amazon S3 Amazon CloudFront App (Cache) App (Memory) Amazon S3 Amazon CloudFront App (Cache) App (Memory)
14. AssetBundle ͷ؀ڥ • νʔϜ։ൃ͢ΔͳΒ git Ͱ؅ཧ • όΠφϦ͔ͩΒඍົͬͪΌඍົ • Asset Server (ཁ Team License) ΋ΞϦ͔ • Editor Script ඞਢ • άάΕ͹͍ͬͺ͍స͕ͬͯ·͢ • ͜ͷษڧձͷաڈͷηογϣϯʹ΋
15. AssetBundle ͷ؀ڥ • iOS / Android ͷ྆ํʹରԠͤ͞Δ৔߹ɺ Team License ങͬͱ͚ʂ • BuildPipeline.BuildAssetBundle() ͷࡍʹ Import Asset ͕૸ΔͨΊɺϦιʔε਺ ͕ଟ͍ͱΊͬͪΌ଴ͭɻ • ͷͰɺCache Server ඞਢɻ
16. AssetBundle ͷઃܭ • ཻ౓ (ฐࣾͷ৔߹) • Atlas / Texture / AudioClip ΛݸผʹϏϧυ • 1ը໘ (≠γʔϯ) ಺ʹ࠷େ10ݸΛ໨҆ • ॳճDL࣌ͷΩϟογϡʹ݁ߏґଘ • Ͳ͏ʹ͔͍ͨ͠Μ͚ͩͲͶ…ɻ
17. AssetBundle ͷઃܭ • ߋ৽ස౓ (ฐࣾͷ৔߹) • ݪଇతʹ iOS ͷਃ੥εέδϡʔϧ͕ج ४ • ͦ΋ͦ΋ߋ৽ස౓͕ߴ͍Ϟϊ͸ API ͱ ͔ܦ༝ͨ͠ํ͕؅ཧָ͕ • BASE64 ͳςΩετΛ৯ΘͤΔͱ͔
18. AssetBundle ͷઃܭ • ॳճDL͢ΔωλҰཡ (ฐࣾͷ৔߹) • ׶͑ͯΞϓϦ಺ (Assets/Resources/) ʹ .txt (TSV ͳ TextAsset) Λอ࣋ • ϑΝΠϧ໊<TAB>όʔδϣϯ<LF> • ຖճىಈ࣌ʹ͜ͷϦετΛνΣοΫ • WWW.LoadFromCacheOrDownload ʹ೚ͤͯ Cache ͕༗͢ΔόʔδϣϯͱҟͳΔͳΒ DL
19. AssetBundle ͷઃܭ • ϑΝΠϧ໊ (ฐࣾͷ৔߹) • ϓϥοτϑΥʔϜ໊/छผ@ γʔϯ໊@ը໘໊@ϑΝΠϧ໊.unity3d • ϓϥοτϑΥʔϜ໊͸ iOS, Android, Editor ͳͲ • छผ͸ Atlas, AudioClip, Texture ͳͲ
20. AssetBundle ͷߏங • Editor Script Ͱ͕Μ͹Δɻ Supporting Files/ 　種別/ 　　シーン名/ 　　　画面名/ 　　　　ファイル名 ͜ͷߏ଄ܾΊଧͪͰσΟϨΫτϦ಺ͷ ϑΝΠϧΛ૸ࠪ
21. AssetBundle ͷ഑৴ • S3 Λ Origin ͱͨ͠ CloudFront • “όʔδϣϯ൪߸/ϓϥοτϑΥʔϜ/” ͳ σΟϨΫτϦҎԼʹ഑ஔ • Editor Script Ͱॻ͖ग़ͨ͠σΟϨΫτϦ Λؙͬͱ PUT ग़དྷΔͱָͪΜ
22. ஫ҙ఺ • ద੾ͳࠩ෼ϏϧυΛߦΘͳ͍ͱμϝ • Կ͔ྑ͍Ҋແ͍͔ͬ͢ʁ͆ • WWW ͸λΠϜΞ΢τͷ࣮૷͕ແ͍ͷͰɺࣗલ Ͱ૊Ήඞཁ͋Γ • CloudFront ࢖͏৔߹ɺ։ൃத͸ Origin ͔Β௚઀ DL ͨ͠ํ͕ྑ͍ • CF ଆͷ Cache Invalidation ͱ͔େมͩ͠ɻ
23. Texture Compression • ςΫενϟͷѹॖ • Inspector ͷ Format ʹ৭ʑ ग़ͯ͘Δ͚Ͳɺཁ͢Δʹ Ͳ͏͍͏ίτ…ʁ
24. Texture Compression • σόΠεຖʹɺల։ग़དྷΔϑΥʔϚοτͱग़ དྷͳ͍ϑΥʔϚοτ͕͋Δ • GPU ʹґଘ • ల։ग़དྷͳ͔ͬͨ৔߹͸ɺແѹॖͷςΫενϟ ΛҰؾʹϝϞϦʹࡌͤΔͬΆ͍ • શը໘ςΫενϟͱ͔ඳըʹ1secֻ͔Δί τ΋ɻ
25. Texture Compression • Ͱɺ࠷దͳͷ͸ʁ • iOS ͸ PowerVR (PVR) ʹ͠ͱ͚͹ OK • RGBA Compressed PVRTC 4 bits
 ͕Φεεϝ • ͩ͜ΘΔͳΒ Texture ผʹ࣮ػͰݟ ͭͭద੾ʹબΜͰͶ
26. ͦ͏ɺiPhone ͳΒͶɻ
27. Texture Compression • ͰɺAndroid ͸ʁ • …ɻ • ………ɻ • ࠷దղ͸͋Γ·ͤΜʂ orz
28. Texture Compression • ͱɺݴ͍͍ͨͱ͜ΖͰ͕͢ɺ7ׂҎ্͕ Adreno ʹରԠ͍ͯ͠ΔΑ͏ͳͷͰɺ ATC ͕ྑ͍Μ͡Όͳ͍͔ͱɻ ग़ల: NTT Ϩκφϯτ͞·ͷ Remote TestKit ୺຤Ұཡ http://appkitbox.com/testkit/smartphone
29. Texture Compression • ඇରԠ୺຤͸…ʁ • ͿͬͪΌ͚੾ΓࣺͯΔํ͕ਫ਼ਆӴੜ ্ΑΖ͍͠ͷͰ͸ʁ • গͳ͘ͱ΋ʮಡΊͳ͍ʯͱ͍͏ίτ ͸ແ͍ (ͬΆ͍) ͷͰɺαΠζ࣍ୈͰ ͸Կͱ͔ͳΔ͔΋ɻ
30. Texture Compression • WebPlayer / Standalone / etc… ͸ʁ • ·ͩ࡞ͬͨ͜ͱແ͍ͷͰ෼͔Γ·ͤ Μʂ (ŝžŕ • ೡΖ৘ใަ׵͠·͠ΐ͏ʂ
31. ·ͱΊ • AssetBundle • Editor Script ͕؊ཁ • ͪΌΜͱӡ༻ݟਾ͑ͯઃܭ͢΂͠ • Texture Compression • Android ͷαϙʔτ࣍ୈ • υϥεςΟοΫͳ൑அ΋ඞཁ͔΋
32. Any Questions?
33. Thank you for your attention!!!