ARKitの話 - Speaker Deck

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2017/06/21 ARKitʹ৮ͬͯݟͨ݁Ռ ໘ന͍ൃද͕Ͱ͖Δ͔ͱࢥͬͨͷ͕ͩ ͦΜͳ͜ͱແ͔ͬͨ… Ͱ΋ؤுͬͯLT͢Δ࿩ WWDC After Party 2017 @Ebisu

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About Me

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• ాத ޹໌ (Takaaki Tanaka) • Ϋϥεϝιουגࣜձࣾ • @kongmingtrap • Swift / Objective-C / Scala / JavaScript … • GyazSquare / GitHub

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WWDC

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WWDC • ॳWWDC • ॳւ֎ • ӳޠ…?

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WWDC • ฐࣾͷฏ԰ਅޗ͞Μ͕WWDC 2015ʹࢀՃ • ಉ͘͡ࢀՃ͍ͯͨ͠ࢣঊ͕ฏ԰ਅޗ͞Μͱ ᬍ᫯ • Ϋϥεϝιου͕ΤϯδχΞΛืू͍ͯ͠ Δ͜ͱΛ஌Δ • Ϋϥεϝιου΁స৬Λܾҙ

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ؓ࿩ٳ୊

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WWDC17

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Main topic • ARKit • eGPUKit • Core ML • Home Kit • HomePod

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Main topic • ARKit • eGPUKit • Core ML • Home Kit • HomePod

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WWDC

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Demo IUUQTXXXZPVUVCFDPNXBUDI WN$P6YH0P. IUUQTJUVOFTBQQMFDPNKQBQQVGPDBNFSBE JE NU

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AR • AVFoundation • Core Location • Heading • Core Motion • Gyro scope • Accelerometer

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AR • AVFoundation • Core Location • Core Motion • Gyro scope • Accelerometer

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AR $FMFTUJBM0CTFSWBUJPO7JFXFS

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ARKit • ARKit • SceneKit

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ARKit • ARKit • SceneKit

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ARSession • ΧϝϥػೳɺϞʔγϣϯݕ஌ͳͲแׅͯ͠ ߦ͏manager object (shared) • ैདྷͷํ๏ͩͱɺόοςϦʔফඅ͕ܹ͔ͬ͠ ͕ͨɺframeworkϨϕϧͰ࠷దԽ͍ͯ͠Δ ʢΒ͍͠ʣ

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ARSession

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ARSession

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Plane Detection

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Plane Detection // configure session if let worldSessionConfig = sessionConfig as? ARWorldTrackingSessionConfiguration { worldSessionConfig.planeDetection = .horizontal session.run(worldSessionConfig, options: [.resetTracking, .removeExistingAnchors]) }

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ARAnchor • ARPlaneAnchor • ARAnchorͷαϒΫϥε • ݕग़͞Εͨฏ໘ • ݕग़͞ΕͨΒARSCNViewDelegateͷϝιου ʹ௨஌͞ΕΔ • renderer(_ renderer: SCNSceneRenderer, didAdd node: SCNNode, for anchor: ARAnchor)

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ARSCNViewDelegate func renderer(_ renderer: SCNSceneRenderer, didAdd node: SCNNode, for anchor: ARAnchor) { DispatchQueue.main.async { if let planeAnchor = anchor as? ARPlaneAnchor { self.addPlane(node: node, anchor: planeAnchor) self.checkIfObjectShouldMoveOntoPlane(anchor: planeAnchor) } } }

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ARPlaneAnchor + SCNNode func addPlane(node: SCNNode, anchor: ARPlaneAnchor) { let pos = SCNVector3.positionFromTransform(anchor.transform) textManager.showDebugMessage("NEW SURFACE DETECTED AT \ (pos.friendlyString())") let plane = Plane(anchor, showDebugVisuals) planes[anchor] = plane node.addChildNode(plane) textManager.cancelScheduledMessage(forType: .planeEstimation) textManager.showMessage("SURFACE DETECTED") if virtualObject == nil { textManager.scheduleMessage("TAP + TO PLACE AN OBJECT", inSeconds: 7.5, messageType: .contentPlacement) } }

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ARPlaneAnchor + SCNNode func updatePlane(anchor: ARPlaneAnchor) { if let plane = planes[anchor] { plane.update(anchor) } }

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ARPlaneAnchor + SCNNode private func updateOcclusionNode() { guard let occlusionNode = occlusionNode, let occlusionPlane = occlusionNode.geometry as? SCNPlane else { return } occlusionPlane.width = CGFloat(anchor.extent.x - 0.05) occlusionPlane.height = CGFloat(anchor.extent.z - 0.05) occlusionNode.position = SCNVector3Make(anchor.center.x, occlusionPlaneVerticalOffset, anchor.center.z) }

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Recap • ฏ໘ݕग़ʢਫฏํ޲ʣͷΈ • ARΑΓ΋ฏ໘ݕग़ػೳͷํ͕ϝΠϯ • Ϟʔγϣϯͷ௥ै͸ࠓޙʹظ଴ • όοςϦʔফඅʹؔͯ͠͸ܭଌͯ͠Έ͍ͨ

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WWDC17 IUUQTEFWFMPQFSBQQMFDPNWJEFPTQMBZ XXED *OUSPEVDJOH"3,JU"VHNFOUFE3FBMJUZGPSJ04

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Thank you!