RealityKitエンジニアのためのUSDフォーマット基礎&実践編集テクニック

3FBMJUZ,JUΤϯδχΞͷͨΊͷ 64%ϑΥʔϚοτجૅ࣮ફฤूςΫχοΫ גࣜձࣾ;0;0/&95 ."53*9ຊ෦93"*෦4LFVPNPSQIJD&OHJOFFSJOHνʔϜ -FBE ൐५ $PQZSJHIU;0;0/&95 *OD

© ZOZO NEXT, Inc. ࣗݾ঺հ גࣜձࣾ;0;0/&95 ."53*9ຊ෦93"*෦4LFVPNPSQIJD&OHJOFFSJOHνʔϜ -FBE ͹Μ͡ΎΜ!CBOKVO ΄΅
ϑϧλΠϜͰWJTJPO04ΞϓϦ։ൃ͍ͯ͠·͢ "QQMFϓϥοτϑΥʔϜ޲͚ωΠςΟϒΞϓϦ։ൃ໿೥ (JU)VCIUUQTHJUIVCDPNCBOKVO "71࠲ஊձIUUQTZPVUVCFDPN!BWQKQ

© ZOZO NEXT, Inc. Կͷ࿩ 64%ϑΝΠϧϑΥʔϚοτ 6OJWFSTBM4DFOF%FTDSJQUJPO 64% %γʔϯΛهड़Ͱ͖Δɺ֦ுੑ͕ͱͯ΋ߴ͍ɺϑΝΠϧܗࣜ
˞ͦΕΛѻ͏ιϑτ΢ΣΞ ϥΠϒϥϦ ͷ͜ͱ΋ࢦ͢ͷͰݕࡧ஫ҙ Φʔϓϯɾιϑτඇґଘɾෳ਺νʔϜ૬ޓӡ༻Մೳ ˞ಛఆͷίϯςϯπ࡞੒ιϑτ #MFOEFS .BZBͳͲ ͷݻ༗ͷϑΝΠϧܗࣜͱ͸ผͷɺେن໛νʔϜͰ΋૬ޓӡ༻Ͱ͖Δɺ ฤू޲͚ͷɺΦʔϓϯͳϑΥʔϚοτ ࠷ऴܗͰ͸ͳ͘ฤूҙਤهड़༻ ˞ෳ਺ͷ64%ϑΝΠϧ΍ը૾ͳͲΛΞηοτͱͯ͠ࢀরͭͭ͠ɺෳ਺ͷฤूҙਤΛॏͶͯهड़ͯ͠ɺ࠷ऴతʹͻͱͭͷ% γʔϯ΁ղܾ͢Δํࣜ 64%ࣗମ͸େ͖ͳ࿩ͳͷͰɺ͜ͷτʔΫͰ͸ɺ3FBMJUZ,JUΤϯδχΞʹ͓͢͢Ίͷ஌ࣝʹߜΓ·͢

© ZOZO NEXT, Inc. 9DPEF ຊτʔΫͰͷ3FBMJUZ,JUΤϯδχΞ • 9DPEFͰ3FBMJUZ,JUΛ࢖ͬͯΞϓϦΛ࡞Δ • J04ΞϓϦ։ൃΈ͍ͨͳ΍Γ͔ͨͰਐΊΔ
3FBMJUZ,JUΤϯδχΞʹͱͬͯͷ64% 4JNVMBUPS ·ͨ͸σόΠε WJTJPO04ΞϓϦͩͱଞʹԿ͕ඞཁ͔ ͜ͷࢹ఺Ͱ௥ͬͯΈΑ͏

© ZOZO NEXT, Inc. ৽نʹWJTJPO04ΞϓϦͷϓϩδΣΫτΛ࡞੒͢Δͱɾɾɾ • 3FBMJUZ$PNQPTFS1SPΛ࢖͏Β͍͠ͱ෼͔Δ ུͯ͠3$1 •
64%ϑΝΠϧΛ࢖͏Β͍͠ͱ෼͔Δ ৽͍͠πʔϧͱϑΝΠϧΛ֮͑ͳ͚Ε͹͍͚ͳ͍͠ɺόʔδϣϯ؅ཧ͸ 3FBMJUZ,JUΤϯδχΞʹͱͬͯͷ64% 64%ϑΝΠϧ 3FBMJUZ$PNQPTFS1SP ུͯ͠3$1 9DPEF 4JNVMBUPS ·ͨ͸σόΠε

© ZOZO NEXT, Inc. 64%ϑΝΠϧͷѻ͍Λ֮͑ͳ͍ͱɾɾɾ • "3Ͱ࢖͏64%;ϑΝΠϧͷ͜ͱ ͱࢥ͏ 3FBMJUZ,JUΤϯδχΞʹͱͬͯͷ64% 3FBMJUZ$PNQPTFS1SP
ུͯ͠3$1 9DPEF 4JNVMBUPS ·ͨ͸σόΠε 64%ϑΝΠϧ

© ZOZO NEXT, Inc. #MFOEFSͱ͔ .BZBͱ͔ %Λ࡞Δਓ͕ͳΜΒ͔64%ͰFYQPSUͯ͘͠ΕΔɺͱ͍͏લఏͱ͠·͢ • ຊτʔΫͰ͸ɺͲ͏΍ͬͯ%Λ࡞ͬͯFYQPSU͢Δ͔͸ѻ͍·ͤΜ
ͱ͜ΖͰɺ64%ϑΝΠϧࣗମ͕Ͱ͖Δ·Ͱ 3FBMJUZ$PNQPTFS1SP ུͯ͠3$1 3FBMJUZ$POWFSUFS ͳͲͰม׵ ͦΕͱ΋ଞͷܗࣜ HMUG PCK ͳͲͳͲ ͍͍ײ͡ͷFYQPSU 64%ϑΝΠϧ

© ZOZO NEXT, Inc. %Λ࡞Δਓ͕ͳΜΒ͔64%ͰFYQPSUͯ͘͠ΕΔɺͱ͍͏લఏͱ͠·͢ • ຊτʔΫͰ͸ɺͲ͏΍ͬͯ%Λ࡞ͬͯFYQPSU͢Δ͔͸ѻ͍·ͤΜ • ͱ͸͍͑ɺ࠷௿ݶίϛϡχέʔγϣϯͰ͖ΔཧղΛఏڙ͠·͢ ͱ͜ΖͰɺ64%ϑΝΠϧࣗମ͕Ͱ͖Δ·Ͱ
64%ϑΝΠϧ 3FBMJUZ$PNQPTFS1SP ུͯ͠3$1 #MFOEFSͱ͔ .BZBͱ͔ Ͳ͏FYQPSU͢Ε͹͍͍ 64%;Έ͍ͨͳɺ͍͍ײ͡ͷͰ

© ZOZO NEXT, Inc. 64%ܗࣜͷղઆ • VTE[ͱVTEBͱVTEDͷҧ͍ͱؔ܎ • VTEBϑΝΠϧݸͷߏ੒ •
ෳ਺ͷVTEϑΝΠϧͷ૊Έ߹Θͤ • ࠷ऴతͳ%γʔϯΛ3FBMJUZ,JUͰϩʔυ͢Δɺͱ͸

© ZOZO NEXT, Inc. 3$1ͰΑ͘ѻ͏VTEϑΝΠϧܗࣜ͸VTE[VTEBVTEDͷछྨ VTE[ ; [JQ VTE[JQ "
VTEB $ VTED VTEDBU VTEDBU VO[JQ [JQܗࣜ SFBEPOMZ ֎෦ࢀরͳ͠ ςΩετܗࣜ ਓ͕ؒಡΈॻ͖Ͱ͖Δ όΠφϦܗࣜ ϝΠϯͷฤूର৅ ྫ͑͹γʔϯͷߏ੒ͱ͔Ґஔͱ ͔֤छଐੑͱ͔ϚςϦΞϧͱ͔ (JUͰEJGGNFSHF -'4ʹೖΕͳͯ͘΋Α͍ VTEBΑΓখ͍͞ ྫ͑͹ϝογϡͱ͔εέϧτ ϯͱ͔Ξχϝʔγϣϯͱ͔

© ZOZO NEXT, Inc. "QQMF64%5PPMTVTEDBU " VTEB $ VTED VTEDBU
usdcat --version Apple USD Tools (0.24.3) usdcat infile.usdc usdcat -o outfile.usda infile.usdc VTEDBUͰVTEDϑΝΠϧΛಡΊΔ .BDʹ͸"QQMF64%5PPMT͕ೖ͍ͬͯΔ (JU)VCͷ1JYBS"OJNBUJPO4UVEJPT 0QFO64%Λ࢖ͬͯ৽͍͠όʔδϣϯͷ VTEDBUΛϏϧυͯ͠࢖͏͜ͱ΋Ͱ͖Δ ࢼͨ͠ݶΓͰ͸ग़ྗ಺༰ಉ͡

© ZOZO NEXT, Inc. VTEBΛಡΊ͹64%ͷத਎͕ཧղͰ͖Δ " VTEB ςΩετܗࣜ ਓ͕ؒಡΈॻ͖Ͱ͖Δ ܗࣜͷҧ͍͸؅ཧͷ͔ͨ͠ͷҧ͍
• ಉ͡಺༰ΛVTEBͰ؅ཧͯ͠΋Α͍͠ • VTED VTE[Ͱ؅ཧͯ͠΋Α͍ ಺༰͸VTEDBUͰVTEBͱͯ͠ཧղͰ͖Δ

© ZOZO NEXT, Inc. /FX1SPKFDUͨ͠3$14DFOFVTEBΛ։͘ VTEBΛμϒϧΫϦοΫͰ λϒʹ ։͚Δ Θ͔Δ͜ͱ •
ςϯϓϨ͸ݸͷ%γʔϯΛ ͍࣋ͬͯΔ • γʔϯ͸֊૚ߏ଄Λ΋͍ͬͯΔ • ͲͪΒͷγʔϯ΋ (SJE.BUFSJBMVTEBΛࢀরͯ͠ ͍Δ

© ZOZO NEXT, Inc. 4DFOFVTEBΛςΩετͰݟΔ֊૚ͱࢀর தུ ddddddddddddddddd EFG9GPSNl3PPUz EFG4QIFSFl4QIFSFz
EFGl(SJE.BUFSJBMz (6*ͱVTEBͷ֊૚ߏ ଄͕ରԠ͍ͯ͠Δ λΠϓ໊ z໊લz ࢀর͸!૬ରύε!

© ZOZO NEXT, Inc. 3$1্ͷ༷ʑͳฤू͸64%ϑΝΠϧͷมߋʹͳΔ ଞͷ༷ʑͳฤूΛ3$1Ͱ (6*Ͱ ͠ ͯΈΔͱɺ֤छ64%ϑΝΠϧͷมߋ Ͱ͋ΔͱΘ͔Δ
3$1͸ɺ64%Λ(6*Ͱૢ࡞͢ΔΤ σΟλʔͱΈͳͤΔ

© ZOZO NEXT, Inc. VTEBϑΝΠϧͷશମߏ੒ શମͷଐੑ EFGɾPWFSͳͲʹΑΔ֊૚ߏ଄ 1SJNͷ֊૚
֤֊૚ʹ͸ଐੑ஋ΛؚΊΒΕΔ ໊લͱ֊૚ͷύεͰಛఆ ࢀর ͢Δ ֎෦ࢀর͸!!ʹ͢Δ

© ZOZO NEXT, Inc. ෳ਺ͷ64%ϑΝΠϧ͔ΒͳΔߏ੒ " VTEB " VTEB "
VTEB 4DFOFVTEBΛ*NNFSTJWFVTEBʹ υϩοϓͯ͠௥Ճ͢ΔͱࢀরʹͳΔ γʔϯ͸ผͷγʔϯΛࢀরͯ࣋ͯ͠Δ

© ZOZO NEXT, Inc. ࢀর͸PWFSͰ͖Δʜඇഁյฤू ࢀরͨ͠γʔϯͷத਎ΛมߋͰ͖ Δʜ64%Ͱ͸PWFSͱ͍͏ ݩͷγʔϯʹӨڹ͸ͳ͘ɺ͜ͷγʔ ϯͰ༩͍͑ͨࠩ෼͚ͩهड़Ͱ͖Δ ίϐʔͰ΋ͳ͍͠ɺࢀরઌͷฤूͰ
΋ͳ͍ ࢀরઌͷ஋΁Ϧηοτ΋Ͱ͖Δ Ϧηοτ

© ZOZO NEXT, Inc. ࢀর͸PWFSͰ͖Δʜඇഁյฤू ࢀরͨ͠γʔϯͷத਎ΛมߋͰ͖ Δʜ64%Ͱ͸PWFSͱ͍͏ ݩͷγʔϯʹӨڹ͸ͳ͘ɺ͜ͷγʔ ϯͰ༩͍͑ͨࠩ෼͚ͩهड़Ͱ͖Δ ίϐʔͰ΋ͳ͍͠ɺࢀরઌͷฤूͰ
΋ͳ͍͔ΒࢀরઌʹEJGG΋ग़ͳ͍ ࢀরઌͷ஋΁Ϧηοτ΋Ͱ͖Δ ໊લ ֊૚ͷύε Ͱର৅Λಛఆ͢Δ Ϧηοτ PWFSl(SJE.BUFSJBMzʜ

© ZOZO NEXT, Inc. ෳ਺64%ϑΝΠϧ͔Β࠷ऴγʔϯ΁ʜ$PNQPTF " VTEB " VTEB "
VTEB VTE[ ; $ VTED ྫ͑͹͜ͷγʔϯΛ ࠷ऴγʔϯ 4UBHF ͱͯ͠ $PNQPTF ೚ҙʹฤू γʔϯهड़ ΛॏͶ ͨάϥϑͰɺࢀর PWFSͷղܾ ͳͲͳͲΛͯ͘͠ΕΔ 3FBMJUZ,JUʹ ϩʔυ͢Δͱൃੜ͢Δ ͨͿΜ9DPEFϏϧυͰ΋

© ZOZO NEXT, Inc. ෳ਺64%ϑΝΠϧ͔Β࠷ऴγʔϯ΁ʜ$PNQPTF " VTEB " VTEB "
VTEB VTE[ ; $ VTED ྫ͑͹͜ͷγʔϯΛ ࠷ऴγʔϯ 4UBHF ͱͯ͠ $PNQPTF ೚ҙʹฤू γʔϯهड़ ΛॏͶ ͨάϥϑͰɺࢀর PWFSͷղܾ ͳͲͳͲΛͯ͘͠ΕΔ 3FBMJUZ,JUʹ ϩʔυ͢Δͱൃੜ͢Δ ͨͿΜ9DPEFϏϧυͰ΋ 3FBMJUZ$PNQPTFS1SP͸ɺ ͜ͷΤϦΞͷΤσΟλʔ

© ZOZO NEXT, Inc. ࠷ऴγʔϯ 4UBHF ͷ3FBMJUZ,JU͔Βͷϩʔυ " *NNFSTJWFVTEB "
(SJE.BUFSJBMVTEB " 4DFOFVTEB l4DFOFzΛ ࠷ऴγʔϯ 4UBHF ͱͯ͠ $PNQPTFͨ͠΋ͷΛϩʔυ l*NNFSTJWFzΛϩʔυ ςϯϓϨͷίʔυͱߏ੒͸ɺ ݁ہ͜͏͍͏͜ͱ

© ZOZO NEXT, Inc. " VTEB " VTEB " VTEB
$ VTED VTE[ ; [JQܗࣜ SFBEPOMZ ֎෦ࢀরͳ͠ ❌ ❌ 64%;ͷࢀর੍ݶ ❌ 3$1Ͱ͸64%;಺ͷը૾Λ ࢀরͰ͖ͳ͍ ࢀর͢ΔͳΒVO[JQͯ͠΋ͭ 64%;ͷத਎΁ͷࢀর͸੍ݶ͋Γ ֎ଆ΁ͷࢀর͸࢓্༷Ͱ͖ͳ͍

© ZOZO NEXT, Inc. ྫϕʔεͷղઆ • 64%$ඇഁյฤू • ྫ%σʔλΛVTEDͱը૾ϑΝΠϧͰ΋Βͬͨ •
3$1ඇରԠػೳͷௐࠪ • ྫVTEDʹ3FBMJUZ,JUඇରԠͷϥΠτ͕͋ͬͨͷͰ࣮ମΛಡΉ • 64%;ల։ฤूɾ੔ཧ • ྫΧϥʔόϦΤʔγϣϯΛը૾ࠩ͠ସ͑Ͱͭ͘Δɾ੔ཧ͢Δ

© ZOZO NEXT, Inc. ྫVTEDʹ3FBMJUZ,JUඇରԠͷϥΠτ͕͋ͬͨͷͰ࣮ମΛಡΉ 3$1্Ͱ͸%PNF-JHIUඇରԠͱ͍͏ද͚͕ࣔͩ͋Δ VTEDBUͯ͠ಡΊ͹ɺ64%Ͱͷ஋͸ಡΊΔ ͜ΕΛ΋ͱʹɺ໛฿Λͭͬͯ͘ΈͨΓɺରԠΛ૬ஊ ͢Δͱ͖ʹ໾ཱͯΒΕΔ def
DomeLight "env_light" { float inputs:intensity = 1 asset inputs:texture:file = @.\textures\color_121212.hdr@ float3 xformOp:rotateXYZ = (90, 1.2722219e-14, 90) uniform token[] xformOpOrder = ["xformOp:rotateXYZ"] }

© ZOZO NEXT, Inc. ྫΧϥʔόϦΤʔγϣϯΛը૾ࠩ͠ସ͑Ͱͭ͘Δɾ੔ཧ͢Δ VTE[Ͱ%͕όϦΤʔγϣϯ͋Δ ΧϥʔόϦΤʔγϣϯΛ ֤छςΫενϟը૾ࠩ͠ସ͑ͷ γΣʔμʔ௥ՃͰ࣮૷͢Δ ϓϨϏϡʔ΋͍ͨ͠
VTE[ࢀরͰγʔϯ࣮૷ ಛʹϓϨϏϡʔͰ͸ɺVTE[ͷ֎ʹը૾ ϑΝΠϧ͕ඞཁ 3$1͕ࢀরͰ͖Δͷ͕ը૾ϑΝΠϧ͚ͩ ͳͷͰ

© ZOZO NEXT, Inc. ྫΧϥʔόϦΤʔγϣϯΛը૾ࠩ͠ସ͑Ͱͭ͘Δɾ੔ཧ͢Δ ࣮૷ऴΘͬͯৼΓฦΕ͹ɺ·ͩ੔ཧͰ͖Δ ڞ௨ςΫενϟσʔλ͸͘͘Γͩͯ͠ࢀরม͑Ε͹Α͍ ΋͸΍VTE[ʹؚ·Ε͍ͯΔը૾ϑΝΠϧ͸ཁΒͳ͍ த਎ͷVTED͚ͩऔΓग़͢ ΧϥʔόϦΤʔγϣϯݸผͷςΫενϟͷߋ৽
σʔλ͸ɺը૾୯ମͰ΋Βͬͯߋ৽͢Δϑϩʔ΁

© ZOZO NEXT, Inc. ิ଍64%ΛࣗྗͰฤूͰ͖ΔΑ͏ʹͳͬͯ΋ͳ͓ɺ3$1Λ௨͢ϝϦοτ 3$1͕64%ΤσΟλʔͰ͔͠ͳ͍ͳΒɺฤू͠ͳ͚Ε͹3$1͸ෆཁ • ίʔυͰ΋௚઀64%Λ&OUJUZʹϩʔυͰ͖Δ •
3$1ͷSLBTTFUT͸Ϗϧυ͕͔͔࣌ؒΔ • ͦΕͰ΋໰୊ͳ͍͕ɺϥϯλΠϜύϑΥʔϚϯεΛؾʹ͢ΔͳΒ3$1͕༗༻

© ZOZO NEXT, Inc. ˞ਖ਼֬ʹ͸ɺ3$1ͱ͍͏ΑΓ΋SFBMJUZUPPMʹΑΔSLBTTFUTͷϏϧυʹΑΔԸܙ͕ͩɺ࣮࣭తʹ3$1ܦ༝Ͱ SLBTTFUTΛอ࣋͢Δͷ͕جຊతͳ΍Γ͔ͨ ࣮ࡍʹϥϯλΠϜͰ͸ɺ64%௚ஔ͖ΑΓ SFBMJUZͷ΄͏͕ϩʔυ͕଎͍͠ɺϝϞϦͷ εύΠΫ΋௿͍ SLBTTFUT͸SFBMJUZϑΝΠϧʹϏϧυ͞ΕΔ
ิ଍64%ΛࣗྗͰฤूͰ͖ΔΑ͏ʹͳͬͯ΋ͳ͓ɺ3$1Λ௨͢ϝϦοτ https://developer.apple.com/jp/augmented-reality/tools/

© ZOZO NEXT, Inc. ࢀߟࢿྉҰཡ *OUSPEVDUJPOUP64% IUUQTPQFOVTEPSHSFMFBTFJOUSPIUNM 64%5FSNTBOE$PODFQUT IUUQTPQFOVTEPSHSFMFBTFHMPTTBSZIUNM 6TE['JMF'PSNBU4QFDJGJDBUJPO
IUUQTPQFOVTEPSHSFMFBTFTQFD@VTE[IUNM ۭؒΞϓϦ޲͚ͷ੍࡞πʔϧ 3FBMJUZ$PNQPTFS1SP IUUQTEFWFMPQFSBQQMFDPNKQBVHNFOUFESFBMJUZUPPMT 8IFSF$BO*%PXOMPBE3FBMJUZ$POWFSUFS ೥࣌఺Ͱೖखܦ࿏͕ಛघ IUUQTEFWFMPQFSBQQMFDPNGPSVNTUISFBE $POWFSUJOH#FUXFFO-BZFS'PSNBUT VTEDBU IUUQTPQFOVTEPSHSFMFBTFUVU@DPOWFSUJOH@CFUXFFO@MBZFS@GPSNBUTIUNM 1JYBS"OJNBUJPO4UVEJPT0QFO64% IUUQTHJUIVCDPN1JYBS"OJNBUJPO4UVEJPT0QFO64%

RealityKitエンジニアのためのUSDフォーマット基礎&実践編集テクニック

RealityKitエンジニアのためのUSDフォーマット基礎&実践編集テクニック

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