How can I access the player’s camera vector in VisionOS, specifically using RealityKit? In Unity and other game engines, there’s often an API like Camera.main.transform.forward for this purpose. I’ve found the head anchor but haven’t identified a way to obtain the forward vector in RealityKit. Is there a related API for this? Any guidance would be greatly appreciated. Thanks!

How can I access the player’s camera vector in VisionOS, specifically using RealityKit? In Unity and other game engines, there’s often an API like "Camera.main.transform.forward for this purpose. " I’ve found the head anchor but haven’t identified a way to obtain the forward vector in RealityKit. Is there a related API for this? Any guidance would be greatly appreciated. Thanks!

When using ARView of RealityKit, I can code like this let results = arView.raycast(from: point, allowing: .estimatedPlane, alignment: .any) to get the 3D position of where I tap on the plane. In iOS 18, we can use RealityView and I found that unproject(_:from:to:ontoPlane:) may implement the same function, but I don't know how to set the ontoPlane parameter. Can someone help me with some code snippets?

I am trying to rotate topEntity around the origin point of shapeEntity, but have not found a way to do so. topEntity is an entity group that also contains shapeEntity, so I cannot set topEntity as a child of shapeEntity. From Blender I set the correct origin of topEntity, but when I import the usd model into Reality Composer Pro it does not save the origin point and there is no way to set the origin in Reality Composer Pro. DragGesture() .targetedToEntity(where: .has(CustomComponent.self)) .onChanged({ value in let rotation = -Float(value.translation.height) let clampedRotation = min(max(rotation, 0), 45) if value.entity.name == "grab"{ if let topEntity = selectedEntity.findEntity(named: "top"), let shapeEntity = selectedEntity.findEntity(named: "Shape_1"){ topEntity.transform.rotation = simd_quatf( angle: clampedRotation * .pi / 180, axis: SIMD3(x: 0, y: 0, z: 1) ) } } })

In macOS project with RealityKit and SwiftUI, adding OrthographicCameraComponent causes crashes in both Xcode Preview and at runtime. import SwiftUI import RealityKit struct ContentView: View { var body: some View { RealityView { content in var camera = Entity() var component = OrthographicCameraComponent() component.scale = 5 camera.position = [0, 0, 5] camera.components.set(component) content.add(camera) content.add(ModelEntity(mesh: .generateSphere(radius: 1))) } } } #Preview { ContentView() } Has anyone faced this issue or knows a fix?

I'm having trouble re-setting the position of a child entity during app re-load even though it appears that I am correctly obtaining and persisting the correct translation values after a drag gesture. The problem exists when I drag a child element to a new location (persist those new values) then reload the app to force re-positioning from persisted translation values. I notice that the parent relationship changes during interaction (tap or drag) which can be seen in the debug statements. I'm wondering if this is related to the problem, or, if the parent change is normal during re-rendering and is un-related to my problem. My thought process is since we care about relative translation values when persisting, if the parent relationship is changed just before persistence, then, are we persisting and setting the wrong values? Project Link: Private STEPS TO REPRODUCE Run the app. Drag the pre-loaded stage down the Y axis so that the floor of the stage is more visible to your eye (in order to better visualize the problem). Tap the button in the timeline to create a new project. Drag the only visible element from the left panel onto the timeline (element is labeled f_works_entity_1). There should now be a green 3d model added to the stage. Drag this green element to a new location (be careful to hover over the green element so that you don't inadvertently drag the stage). Re-run the app to see that the green element is offset to a new location, not the last dragged location. To reset and try again, delete the project canvas next to the project name (trash button) then restart the app. Areas of concern: RealityKitView is the only file you may need. Line 119 is where we create new child entities Lines 185-219 is where we persist and apply persisted values. You can also search FIXME in the file to see areas of concern. Tip: I have a tap gesture on each entity that produces a debug statement with info about the entity and its parent including IDs.

If I put an alpha image texture on a model created in Blender and run it on RCP or visionOS, the rendering between the front and back due to alpha will result in an unintended rendering. Details are below. I expor ted a USDC file of a Blender-created cylindrical object wit h a PNG (wit h alpha) texture applied to t he inside, and t hen impor ted it into Reality Composer Pro. When multiple objects t hat make extensive use of transparent textures are placed in front of and behind each ot her, t he following behaviors were obser ved in t he transparent areas ・The transparent areas do not become transparent ・The transparent areas become transparent toget her wit h t he image behind t hem the order of t he images becomes incorrect Best regards.

Hello, Is there a way to always have the attachments of a RealityView always face the user? For example, in a visionOS app, in an immersive space, we have an attachment. When the user either walks around the attachment, or rotates the parent entity, we would like the attachment to automatically rotate to face the user. How do we do this? I anticipated this to be a trivial feature to implement, since I thought I remembered seeing this feature as a built-in/opt-in option for attachments. But, I cannot find that feature. All and any recommendations are appreciated, thanks.

I have this code to make ARVR Stereo View To Be Used in VR Box Or Google Cardboard, it uses iOS 18 New RealityView but it is not Act as an AR but rather Static VR on a Camera background so as I move the iPhone the cube move with it and that's not suppose to happen if its Anchored in a plane or to world coordinate. import SwiftUI import RealityKit struct ContentView : View { let anchor1 = AnchorEntity(.camera) let anchor2 = AnchorEntity(.camera) var body: some View { HStack (spacing: 0){ MainView(anchor: anchor1) MainView(anchor: anchor2) } .background(.black) } } struct MainView : View { @State var anchor = AnchorEntity() var body: some View { RealityView { content in content.camera = .spatialTracking let item = ModelEntity(mesh: .generateBox(size: 0.25), materials: [SimpleMaterial()]) anchor.addChild(item) content.add(anchor) anchor.position.z = -1.0 anchor.orientation = .init(angle: .pi/4, axis:[0,1,1]) } } } the thing is if I remove .camera like this let anchor1 = AnchorEntity() let anchor2 = AnchorEntity() It would work as AR Anchored to world coordinates but on the other hand is does not work but on the left view only not both views Meanwhile this was so easy before RealityView and SwiftUI by cloning the view like in ARSCNView Example : import UIKit import ARKit class ViewController: UIViewController, ARSCNViewDelegate, ARSessionDelegate { //create Any Two ARSCNView's in Story board // and link each to the next (dont mind dimensions) @IBOutlet var sceneView: ARSCNView! @IBOutlet var sceneView2: ARSCNView! override func viewDidLoad() { super.viewDidLoad() // Do any additional setup after loading the view. sceneView.delegate = self sceneView.session.delegate = self // Create SceneKit box let box = SCNBox(width: 0.1, height: 0.1, length: 0.1, chamferRadius: 0.01) let item = SCNNode(geometry: box) item.geometry?.materials.first?.diffuse.contents = UIColor.green item.position = SCNVector3(0.0, 0.0, -1.0) item.orientation = SCNVector4(0, 1, 1, .pi/4.0) // retrieve the ship node sceneView.scene.rootNode.addChildNode(item) } override func viewDidLayoutSubviews() // To Do Add the 4 Buttons { // Stop Screen Dimming or Closing While The App Is Running UIApplication.shared.isIdleTimerDisabled = true let screen: CGRect = UIScreen.main.bounds let topPadding: CGFloat = self.view.safeAreaInsets.top let bottomPadding: CGFloat = self.view.safeAreaInsets.bottom let leftPadding: CGFloat = self.view.safeAreaInsets.left let rightPadding: CGFloat = self.view.safeAreaInsets.right let safeArea: CGRect = CGRect(x: leftPadding, y: topPadding, width: screen.size.width - leftPadding - rightPadding, height: screen.size.height - topPadding - bottomPadding) DispatchQueue.main.async { if self.sceneView != nil { self.sceneView.frame = CGRect(x: safeArea.size.width * 0 + safeArea.origin.x, y: safeArea.size.height * 0 + safeArea.origin.y, width: safeArea.size.width * 0.5, height: safeArea.size.height * 1) } if self.sceneView2 != nil { self.sceneView2.frame = CGRect(x: safeArea.size.width * 0.5 + safeArea.origin.x, y: safeArea.size.height * 0 + safeArea.origin.y, width: safeArea.size.width * 0.5, height: safeArea.size.height * 1) } } } override func viewDidAppear(_ animated: Bool) { super.viewDidAppear(animated) let configuration = ARWorldTrackingConfiguration() sceneView.session.run(configuration) sceneView2.scene = sceneView.scene sceneView2.session = sceneView.session } } And here is the video for it

I have this code to make ARVR Stereo View To Be Used in VR Box Or Google Cardboard, it uses iOS 18 New RealityView but for some reason the left side showing the Entity (Box) more near to the camera than the right side which make it not identical, I wonder is this a bug and need to be fixed or what ? thanx Here is the code import SwiftUI import RealityKit struct ContentView : View { let anchor1 = AnchorEntity(.camera) let anchor2 = AnchorEntity(.camera) var body: some View { HStack (spacing: 0){ MainView(anchor: anchor1) MainView(anchor: anchor2) } .background(.black) } } struct MainView : View { @State var anchor = AnchorEntity() var body: some View { RealityView { content in content.camera = .spatialTracking let item = ModelEntity(mesh: .generateBox(size: 0.25), materials: [SimpleMaterial()]) anchor.addChild(item) content.add(anchor) anchor.position.z = -1.0 anchor.orientation = .init(angle: .pi/4, axis:[0,1,1]) } } } And Here is the View

I have an issue using RealityView to show two screens of AR, while I did succeed to make it as a non AR but now my code not working. Also it is working using Storyboard and Swift with SceneKit, so why it is not working in RealityView? import SwiftUI import RealityKit struct ContentView : View { var body: some View { HStack (spacing: 0){ MainView() MainView() } .background(.black) } } struct MainView : View { @State var anchor = AnchorEntity() var body: some View { RealityView { content in let item = ModelEntity(mesh: .generateBox(size: 0.2), materials: [SimpleMaterial()]) content.camera = .spatialTracking anchor.addChild(item) anchor.position = [0.0, 0.0, -1.0] anchor.orientation = .init(angle: .pi/4, axis:[0,1,1]) // Add the horizontal plane anchor to the scene content.add(anchor) } } }

I want use SwiftUI views as RealityKit entities to display AR Labels within a RealityKit scene, and the labels could be more complicated than just text and window as they might include images, dynamic texts, animations, WebViews, etc. Vision OS enables this through RealityView attachments, and there is a RealityView support on iOS 18. Tried running RealityView attachments code samples from VisionOS on iOS 18. However, the code below gives errors on iOS 18: import SwiftUI import RealityKit struct PassportRealityView: View { let qrCodeCenter: SIMD3<Float> let assetID: String var body: some View { RealityView { content, attachments in // Setup your AR content, such as markers or 3D models if let qrAnchor = try? await Entity(named: "QRAnchor") { qrAnchor.position = qrCodeCenter content.add(qrAnchor) } } attachments: { Attachment(id: "passportTextAttachment") { Text(assetID) .font(.title3) .foregroundColor(.white) .background(Color.black.opacity(0.7)) .padding(5) .cornerRadius(5) } } .frame(width: 300, height: 400) } } When I remove "attachments" keyword and the block, the errors are kind of gone. That does not help me as I want to attach SwiftUI views to Anchor Entities in RealityKit. As I understand, RealityView attachments are not supported on iOS 18. I wonder if there is any way of showing SwiftUI views as entities on iOS 18 at this point. Or am I forced to use the text meshes and 3d planes to build the UI? I checked out the RealityUI plugin, but it's too simple for my use case of building complex AR labels. Any advice would be appreciated. Thanks!

Hi! I wanna know that if it's possible that loading Immersive Scene after scanning(recognizing) preregistered images or objects? I tried to load the Immersive scene after scanning image and objects, it didn't work well. Please let me know about the solution if it's possible. Here the ImmersiveView.swift code i tried. // ImmersiveView.swift import SwiftUI import RealityKit import RealityKitContent // Using the RealityKitContent module struct ImmersiveView: View { @ObservedObject var viewModel: TrackingViewModel @State private var immersiveScene: Entity? @State private var isToggleOn: Bool = false // Variable for toggle state var body: some View { ZStack { // Overlay RealityView and UI elements RealityView { content in if let scene = immersiveScene { content.add(scene) print("Immersive scene successfully added.") if let moneyGunsEntity = scene.findEntity(named: "MoneyGuns") { NotificationCenter.default.post( name: Notification.Name("RealityKit.NotificationTrigger"), object: nil, userInfo: [ "RealityKit.NotificationTrigger.Scene": scene, "RealityKit.NotificationTrigger.Identifier": "PlayTimeline" ] ) print("PlayTimeline notification sent.") } else { print("MoneyGuns entity not found.") } } } .onAppear { Task { if let scene = try? await Entity(named: "Immersive", in: realityKitContentBundle) { immersiveScene = scene } else { print("Failed to load immersive scene.") } } } VStack { Spacer() Toggle(isOn: $isToggleOn) { // Add toggle button Text("Toggle Option") .foregroundColor(.white) } .padding() .background(Color.black.opacity(0.7)) .cornerRadius(8) .padding() } } } }

Hello, I'm creating an app that use PhotogrammetrySession Class to build 3D objects from photographs (https://developer.apple.com/documentation/realitykit/creating-3d-objects-from-photographs). I'm wondering why this class is working only on Pro iphone (12 Pro, 13 Pro, 14 Pro, 15 Pro and 16 Pro) and none non-Pro iPhone. My app does not use Lidar so it's not the problem. I thought it could be power-related but a18 soc from iPhone 16 is more powerful than a14 bionic from iPhone 12 Pro (i could also mention iPhone 13 Pro and iPhone 14 that both have a15 bionic whereas only the first one is compatible). Did I miss something that could explain these restrictions ? Is there any plan to make this class usable by every iPhone enough powerful to run it ? Thanks in advance for answering me

Hi! I'm planning to make visionOS multiplayer app for people in same space(a room). I wanna know that if it's possible to use TabletopKit, Group Activities to create an app that becomes multiplayer(synchronize) with the people who are using it as soon as the app is opened without using SharePlay.

In visionOS, ARKit is to integrate virtual and reality. However, most of the functions RealityKit can be easily implemented (except for Scene reconstruction, Room Tracking and enterprise API), so do I still need to use ARKit? Is there any difference between them?

I've just updated to macOS 15.2 Beta and Xcode 16.2 Beta and just noticed I can't build my visionOS app as before. I have a separate /Volumes/Development APFS volume for Xcode projects, plus utilising a Relative setting for DerivedData so that these are located in the projects' directories – in this case, subfolder on this volume mentioned. I just found that when attempting to build the app in either Xcode 16.1 or 16.2 Beta with visionOS 2.1 SDK, I'm getting a following error: Finished processSwiftFiles() with a failure 'You don’t have permission to save the file “CustomComponentUSDInitializers.usda” in the folder “RealityAssetsGenerated”.' Sandbox: realitytool(6216) deny(1) file-write-create /Volumes/Development/travel-visionos/DerivedData/Tripomatic/Build/Intermediates.noindex/RealityKitContent.build/Debug-xrsimulator/RealityKitContent_RealityKitContent.build/DerivedSources/RealityAssetsGenerated/CustomComponentUSDInitializers.usda.sb-02874eb3-PS4qfZ Failure creating schema - 'You don’t have permission to save the file “CustomComponentUSDInitializers.usda” in the folder “RealityAssetsGenerated”.' This for sure worked previously with 15.0/16.0 or 15.1/16.1 as I've even published the app to the App Store. It seems to be some shenanigans related to sandboxing &amp; permissions for Xcode tools which I can hardly work around. I have Xcode added to Developer Tools and Full disk access sections in Privacy &amp; Security, yet that doesn't really change anything in relation to this issue. When I move the project to a subfolder in my home directory, the build succeeds. The same applies to switching DerivedData setting to the default value to that DD are generated in ~/Library/Developer folder for all projects opened in Xcode. Thus, either macOS or Xcode now has an issue with running realitytool to generate files on my dedicated volume. Should I consider this Xcode or macOS Beta issue? Report it via Feedback Assistant maybe?

I have an immersive space with a RealityKit view which is running an ARKitSession to access main camera frames. This frame is processed with custom computer vision algorithms (and deep learning models). There is a 3D Entity in the RealityKit view which I'm trying to place in the world, but I want to debug my (2D) algorithms in an "attached" view (display images in windows). How to I send/share data or variables between the views (and and spaces)?

Hi! I'm making content using Room Tracking for vision pro these days. So I searched information about it. Here the links I visited. But I could not found the info I wanted to know Apple ARKit Create enhanced spatial computing experiences with ARKit RoomTrackingProvider I wanna know that if it's possible remembering room structure that recognized before and adding contents in certain world anchor in the room space when user entered the room again? For example, a developer can save the room structure, room info (with room ID) and world anchor of the room with Room Tracking feature. After this, the developer can add entities via Xcode and Reality Composer Pro in certain position of the room to show contents to users when users enter the room. So users can see the contents whenever they visit the room. Is this possible? If there are example codes or projects about it, please let me know.

Hi, does anyone know if it is an easy way to determine the distance between floor and ceiling in vision Pro?