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360°写真、動画を用いた VR 対応アプリの開発方法
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yuky_az
August 20, 2016
Programming
5.6k
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360°写真、動画を用いた VR 対応アプリの開発方法
iOSDC 2016で発表した際のスライドです。スマートフォンのVR対応についてお話です。
yuky_az
August 20, 2016
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Transcript
˃ࣸਅɺಈըΛ༻͍ͨ 73ରԠΞϓϦͷ։ൃํ๏ :VLJOBHB"[VNB !ZVLZ@B[ J04%$+BQBO
ࣗݾհ :VLJOBHB"[VNB ʢզ࠺ʣ J04ΤϯδχΞ 3% େֶͷݚڀһɺϝʔΧʔۈɺϓϩάϥϛϯά ߨࢣɺϑϦʔϥϯεΛܦͯɺ%VDLMJOHTגࣜձࣾͰ εϚϗ͚73"*Λ։ൃத !ZVLZ@B[ TBJJMBCDPN
ਓೳɺਓੜ໋ɺੜֶɺ ϓϩάϥϛϯάڭҭɺ ϒϥδϦΞϯॊज़ ଞͷڵຯͷର
ൃදͷྲྀΕ εϚʔτϑΥϯʹΑΔ73ʹ͍ͭͯ ˠҰൠɺɺΞϓϦͷཁٻ ϥΠϒετϦʔϛϯάΞϓϦͷ։ൃྫ ˠΧϝϥରԠɺ).%ରԠɺ࣮ํ๏
όʔνϟϧϦΞϦςΟʔ(VR)ͱʁ ޒײ૾ྗΛܹ͠ɺͦ͜ʹͳ͍ͷΛ࡞Γग़͢
VRʹඞཁͳཁૉ ྟײ ˠө૾Իͱମײ֮ͷҰகʹΑΓɺຊʹͦͷʹ͍Δ Α͏ͳͷࡨ͕֮ى͖Δ շదੑ ˠө૾Իͱମײ֮ͷෆҰகʹΑΓɺ73ਲ͍͕ൃੜ͢Δ ͷͰɺ͜ΕΛݮ͢Δ
εϚʔτϑΥϯʹΑΔVR ೋ؟ϔουϚϯτσΟεϓϨΠ ).% ʹεϚϗΛண σόΠεͷ͖ͱө૾ͷ͖ΛҰகͤ͞Δ
εϚʔτϑΥϯVRͷಛ ϋΠΤϯυσόΠε 0DVMVT3JGUɺ)5$7JWFɺ1MBZ4UBUJPO73ɺFUD ˠ1$ͱͷଓ͕ඞཁɺϦιʔεେɺମҠಈͷݕ͕Մೳ εϚʔτϑΥϯ J1IPOFɺ"OESPJEεϚϗɺFUD ˠ1$ͱͷଓෆཁɺϦιʔεখɺମҠಈͷݕ͕͍͠
ΞϓϦͷཁٻ ྟײˍշదੑͷͨΊʹ ˠߴ͍ϑϨʔϜϨʔτͱɺटͷಈ͖ʹର͢Δө૾ͷैੑ ڑͷݕ΄΅ෆՄ ˠମͷҠಈͷݕ͍͠ɻମҐஔΛݻఆͯ͠༻͕લఏ Ϧιʔεʹ༨༟͕ͳ͍ ˠ$16ɺ(16ɺϝϞϦͷແବݣ͍Λۃྗ͑Δ
˃ϥΠϒετϦʔϛϯάΞϓϦͷ։ൃྫ )6(73EFHSFFMJWF ˃ϥΠϒಈըΛࢹௌɺ).%ରԠ ϦΞϧλΠϜͰίϛϡχέʔγϣϯ ༻࣮ ˠԻָϥΠϒɺΧϯϑΝϨϯεɺFUD ͔ࠃͰͷར༻
ΞϓϦͷཁٻ ϥΠϒதɺϦΞϧλΠϜͰҎԼͷॲཧ͕ൃੜ ಈըͷड৴ɺϐΫηϧόοϑΝͷॲཧɺ ΧϝϥରԠɺ%ඳըɺ ϝοηʔδͷૹड৴ɺϞʔγϣϯηϯαɺFUD J1IPOFͷੑೳΛϑϧʹҾ͖ग़͢͜ͱ͕ඞཁ
࣮ํ๏ͷબఆ (PPHMF734%, ˠ࣮͕؆୯͕ͩɺΧελϚΠζੑ͕͍ 6OJUZ ˠϢχόʔαϧͳ։ൃڥͷͨΊɺ J1IPOFͷੑೳΛϑϧʹҾ͖ग़͢ͷ͍͠
࣮ํ๏ͷબఆ 4DFOF,JU ˠߴϑϨʔϜϨʔτͰͷಈը࠶ੜ͕͍͠ɻ 0QFO(-&4 (-,JU ˠѻ͍͕͍͕͠ɺ ύϑΥʔϚϯεΧελϚΠζੑ͕ߴ͍ ADOPTED
ॲཧͷྲྀΕͷུ֓ ϥΠϒσʔλͷड৴ J1IPOFεΫϦʔϯʹඳը ಄ͷ͖ͷݕग़ ֤ॲཧϚϧνεϨουͰ࣮ߦ͞ΕΔ ٿͷ໘ʹ ςΫενϟΛషΓ͚ Ұఆִ࣌ؒؒͰ࣮ߦ ࢹઢϕΫτϧͷճస
ςΫενϟͷషΓ͚,PEBL41, %มΛߦ͍ ٿͷ໘ʹషΓ͚Δ x = R * sin(φ) * cos(θ)
y = R * cos(φ) z = R * sin(φ) * sin(θ) Γൈ͖ ࠲ඪม ݩը૾4JOHMFpTIFZF D 8BMUFS θ φ
ςΫενϟͷషΓ͚3JDPI5IFUB4 ݩը૾%VBMpTIFZF %มΛߦ͍ɺͦΕͧΕ ٿͷ໘ʹషΓ͚Δ x = R * sin(φ) *
cos(θ) y = R * sin(φ) * sin(θ) z = R * cos(φ) Γൈ͖ ճస ࠲ඪม
಄ͷ͖ͷݕग़ MFUNPUJPO.BOBHFS$..PUJPO.BOBHFS NPUJPO.BOBHFSEFWJDF.PUJPO6QEBUF*OUFSWBM NPUJPO.BOBHFSTUBSU%FWJDF.PUJPO6QEBUFT5P2VFVF /40QFSBUJPO2VFVF \ EFWJDF.BOBHFS FSSPS
JO MFUZBXEFWJDF.BOBHFSBUUJUVEFZBX MFUQJUDIEFWJDF.BOBHFSBUUJUVEFSPMM MFUSPMMEFWJDF.BOBHFSBUUJUVEFQJUDI ^ $PSF.PUJPOΛར༻ͯ͠ σόΠεͷ͖ ಄ͷ͖ Λऔಘ
ࢹઢϕΫτϧͷճస D +VBOTFNQFSF Ψ = yaw θ = pitch Φ
= roll ࢹઢϕΫτϧΛճస͠ ࢹઢͷઌΛεΫϦʔϯʹඳը͢Δ ΫΥλʔχΦϯʢ࢛ݩʣ ͷར༻͕ඞཁ
ϚϧνεϨουઃܭ ༷ʑͳॲཧΛฒྻͰߦ͍ɺϘτϧωοΫ͕ੜ͡ͳ͍Α͏ʹ͢Δ ಈըσʔλͷड৴ ϐΫηϧόοϑΝͷॲཧ ςΫενϟͷషΓ͚ ಄ͷ͖ͷݕग़ ࢹઢϕΫτϧͷઃఆ εΫϦʔϯʹඳը γϦΞϧΩϡʔ༏ઌ ը໘ͷϦϑϨογϡͱಉظ
௨৴ͱಉظ γϦΞϧΩϡʔ༏ઌߴ Ϟʔγϣϯηϯαͱಉظ
GPUͷνϡʔχϯά %FCVHOBWJHBUPS'14*OTUSVNFOUT0QFO(-&4"OBMZTJT ෛՙͷେ͖͍ॲཧແ͍͔ʁϝογϡͷܗঢ়ద͔ʁFUD
࣮ԋಈը -ѱ͍ྫ- ϚϧνεϨουͷઃܭ͕ෆద ύϑΥʔϚϯεͷνϡʔχϯά͕ेͰͳ͍ ྟײ͕͍ɺ73ਲ͍͕ൃੜɺ͕ߴԹ
࣮ԋಈը -ྑ͍ྫ- ϚϧνεϨουͷઃܭ͕ద ύϑΥʔϚϯεͷνϡʔχϯά͕े ྟײ͕ߴ͍ɺ73ਲ͍͕ൃੜ͠ͳ͍ɺ͕ߴԹʹͳΒͳ͍
·ͱΊ ύϑΥʔϚϯεͷ্ ˠ$16ɺ(16ͷ࠷దԽ %ඳը ˠඳ͖͍ͨΠϝʔδΛࣜԽ͢Δ ྟײ͕͋ΓɺշదͳεϚʔτϑΥϯ73ͷͨΊʹ ϚϧνεϨου ˠෳͷॲཧΛฒߦͯ͠ߦ͍ɺಛఆͷεϨου͕ϘτϧωοΫ ʹͳΔͷΛ͙