ARKitに入門して🍣三昧/arsushi_with_arkit_20170721

by fromkk

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ARKitʹೖ໳ͯ͠!ࡾດ iOS Creators' Meetup vol.4 1

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Profile Kazuya Ueoka Timers inc.ͷiOSΤϯδχΞ Twitter: @fromkk Github: fromkk Qiita: fromkk 2

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WWDC 2017Ͱൃද͞ΕͨARKit 602 Introducing ARKit: Augmented Reality for iOS 3

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AR(Augmented Reality) 4 ֦ுݱ࣮ 4 Χϝϥ!ͰࡱӨͨ͠ө૾ʹ3Dͷ෺ମ౳Λ഑ஔ͢ΔࣄͰݱ࣮ ʹԾ૝తͳ෺ମ͕͍Δ༷ʹݟ͑Δٕज़ 4

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ͲΜͳࣄ͕ग़དྷΔ ͔ 4 Made with ARKit 4 Awesome ARKit 5

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ͲΜͳΞϓϦʹ޲͍͍ͯΔ͔ 4 ήʔϜ 4 EC౳ͷ෺ൢ 4 ڭҭɾֶशܥ and more... 6

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ARKit 4 ϋΠϨϕϧͳAPI 4 iOSରԠ(A9Ҏ্) 4 SceneKit(3D), SpriteKit(2D), Metal(ΧελϜϨϯμϦ ϯά)ରԠ 4 Կԯ΋ͷσόΠε͕ARKitʹରԠࡁΈ 7

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ओཁͳػೳ 4 ϫʔϧυτϥοΩϯάʢಛ௃఺ΛτϥοΩϯάʣ 4 γʔϯͷཧղʢচͷ൑அɾ౰ͨΓ൑ఆɾ໌Δ͞ਪଌʣ 4 ϨϯμϦϯά UnityɾUnrealରԠ 8

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Architecture 9

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ARSession ARKitͷجຊͱͳΔΫϥε 4 func run(_ configuration: ARSessionConfiguration, options: RunOptions = []) 4 ఆظతʹτϥοΩϯά৘ใΛؚΜͩ ARFrame Λ ARSessinoDelegate Ͱड͚औΔࣄ͕ग़དྷΔ 10

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ARWorldTrackingSessionConfiguration ݱ࣮ੈքΛτϥοΩϯά͢ΔҝͷઃఆΫϥε 4 class var isSupported: Bool ͰτϥοΩϯάʹରԠ͠ ͍ͯΔ͔൑அ͢Δࣄ͕ग़དྷΔ 4 var planeDetection: PlaneDetection 4 struct PlaneDetection : OptionSet { static var horizontal: PlaneDetection } 11

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ARSCNView ARΛදࣔ͢Δҝʹར༻͢ΔView 4 SCNView Λܧঝ 4 delegate: ARSCNViewDelegate Ͱ ARAnchor ͕௥Ճ͞Ε ͨ౳ͷ௨஌Λड͚औΔࣄ͕ग़དྷΔ 12

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౰ͨΓ൑ఆ ARSCNView.hitTest(_ point: CGPoint, types: .ResultType) -> [ARHitTestResult] 13

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ARHitTestResult.ResultType 4 featurePoint ࠷΋͍ۙಛ௃఺ 4 estimatedHorizontalPlane ਪఆͷਫฏ໘ 4 existingPlane طଘͷฏ໘ΞϯΧʔ 4 existingPlaneUsingExtent طଘͷฏ໘ΞϯΧʔͷൣғΛ ར༻͢Δ 14

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ͱ͜ΖͰ 15

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օ͞Μ!͸޷͖Ͱ͔͢ʁ 16

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Ͱ͢ΑͶʁ 17

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!͕ແݶʹݱΕΔ༷ͳੈքʹಌΕ·͢ΑͶ" 18

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࡞ͬͯΈ·͠ΐ͏! 19

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؆୯ͳྲྀΕ 4 ARSCNView ʹ SCNScene Λ௥Ճ͢Δ 4 ARSession ͷ run ϝυουʹ ARWorldTrackingSessionConfiguration Ληοτ 4 scene.rootNode ʹ SCNNode Λ௥Ճ͍ͯ͘͠ 4 ී௨ʹ UIGestureRecognizer ͕ར༻ग़དྷΔ 20

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લఏ৚݅ 4 ΧϝϥΛར༻͢Δҝ Info.plist ʹ NSCameraUsageDescription Λهड़͓ͯ͘͠ 21

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demo 22

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Recap 4 ؆୯ʹݱ࣮ੈքʹण࢘Λେྔʹ഑ஔ͢Δࣄ͕ग़དྷ·ͨ͠! 4 SceneKit ͷ஌͕ࣝ͋Ε͹৭ʑग़དྷͦ͏" 4 iOS 11ͷϦϦʔεͱڞʹͲͷ༷ͳARKitରԠͷΞϓϦ͕ग़ͯ ͘Δָ͔͠ΈͰ͢Ͷ❗ 4 (ͪͳΈʹ)iPadͷSwift Playground 2(beta)Ͱ΋ಈ͘$ 23

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Sample code 4 https://github.com/fromkk/ARSushi 4 https://github.com/fromkk/ ARKitForSwiftPlayground2 24

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͝ਗ਼ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠! 25