Here is the code snippets. struct RealityViewTestView: View { @State private var texts: [String] = [] var body: some View { RealityView { content, attachments in } update: { content, attachments in for text in texts { if let textEntity = attachments.entity(for: text) { textEntity.position.x = Float.random(in: -0.1...0.1) content.add(textEntity) } } } attachments: { ForEach(texts, id: \.self) { text in Attachment(id: text) { Text(text) .padding() .glassBackgroundEffect() } } } .toolbar { ToolbarItem { Button("Add") { texts.append(String(UUID().uuidString.prefix(6))) } } ToolbarItem { Button("Remove") { texts.remove(at: Int.random(in: 0..<texts.count)) } } } } } struct RealityViewTestView: View { @State private var texts: [String] = [] @State private var entities: [Entity] = [] var body: some View { RealityView { content, attachments in } update: { content, attachments in // for text in texts { // if let textEntity = attachments.entity(for: text) { // textEntity.position.x = Float.random(in: -0.1...0.1) // content.add(textEntity) // } // } for entity in entities { content.add(entity) } } attachments: { ForEach(texts, id: \.self) { text in Attachment(id: text) { Text(text) .padding() .glassBackgroundEffect() } } } .toolbar { ToolbarItem { Button("Add") { //texts.append(String(UUID().uuidString.prefix(6))) let m = ModelEntity(mesh: .generateSphere(radius: 0.1), materials: [SimpleMaterial(color: .white, isMetallic: false)]) m.position.x = Float.random(in: -0.2...0.2) entities.append(m) } } ToolbarItem { Button("Remove") { //texts.remove(at: Int.random(in: 0..<texts.count)) entities.removeLast() } } } } } About the first code snippet, when I remove an element from the texts, why content can automatically remove the corresponding entity? And about the second code snippet, content do not automatically remove the corresponding entity. I am very curious.

Hello, I checked following documentations. Vision | Apple Developer Documentation Discover Swift enhancements in the Vision framework - WWDC24 - Videos - Apple Developer I saw Vision Framework is available on visionOS. So I want to know that if it's possible using Vision Framework on visionOS for tracking human and animal body poses. Or are there some limits to use this on visionOS?

Im just trying to setup some kind of visual on my iPad for testing and play purposes... I tried adding iPad to both APPLE Visual APPS. I get this error for both Building for 'iphoneos', but '12.0' must be >= '18.0'

Hi everyone, I am wondering under which settings the camera(s) were set by the time they were calibrated. For instance, one aspect that is easy to find is the reference resolution of the images taken when calibrating the intrinsics, this is by retrieving intrinsicMatrixReferenceDimensions. Making sure that the principal point is referenced to the by the time resolution used when the calibration was ongoing. However, recently I saw that there are focusing modes that potentially displace the lens' physical position. Settings like: AutoFocusRangeRestriction: none, near, far setFocusModeLocked: Locks the lens position at the specified value, and sets the focus mode to a locked state. My concern lies the impact this focusing lens displacements can have on the intrinsic matrix parameters, like these parameters no longer describe the camera since the lens position has changed. In simple words, what is the focus 'mode'/'range' the cameras were set when calibrating them for intrnisics?

HoverEffectComponent on macOS 15 and iOS 18 works fine using RealityView, but seems to be ignored when ARView (even with a SwiftUI UIViewRepresentable) is used. Feedback ID: FB15080805

Hey, I'm building an interior design app In Vision OS 2.0. I'm fetching the planes detected by ARKit and I then proceed to add them with an "OcclusionMaterial" to make sure my object are occluded accordingly. However, I'm facing two problems with this: The ground shadows are completely disabled as soon as an occlusion material is added, even if I inset the planes doing the occlusion. I've looked into this: https://developer.apple.com/documentation/shadergraph/realitykit/shadow-receiving-occlusion-surface-(realitykit) but when I tried to use it, it behaved exactly as "OcclusionMaterial". The planes are also occluding all windows (mines and the system ones), which is a behavior I'd like to avoid. I only want to occluded the Entity I added. Is there a way to achieve this? Thanks in advance

I am trying to apply impulseAction to an entity but everytime entity.playAnimation(impulseAnimation) is executed, the log says Cannot find a BindPoint for any bind path: "". I can't figure out what is wrong. Could someone please help me with this? import SwiftUI import RealityKit import RealityKitContent struct ImmersiveView: View { var body: some View { RealityView { content in // Add the initial RealityKit content if let immersiveContentEntity = try? await Entity(named: "Immersive", in: realityKitContentBundle), var sphere = immersiveContentEntity.findEntity(named: "Sphere") { sphere.components.set(CollisionComponent(shapes: [ShapeResource.generateSphere(radius: 0.1)])) sphere.components.set(PhysicsBodyComponent(shapes: [ShapeResource.generateSphere(radius: 0.1)], mass: 1000)) sphere.components[PhysicsBodyComponent.self]?.isAffectedByGravity = false sphere.position = [0, 1, -1] content.add(immersiveContentEntity) // Create an action to apply an impulse, forcing the object to move upwards. let impulseAction = ImpulseAction(linearImpulse: [0, 1, 0]) // Create a small positive duration value. let duration: TimeInterval = 1 / 30.0 // Create an animation for the action, which will start playing // after five seconds. do { let impulseAnimation = try AnimationResource .makeActionAnimation(for: impulseAction, duration: duration, delay: 5.0) // Play the sequence animation that will play the actions. sphere.playAnimation(impulseAnimation) } catch { print("Error: \(error)") } } } } } All the logs: Could not locate file 'default-binaryarchive.metallib' in bundle. Error creating the CFMessagePort needed to communicate with PPT. AddInstanceForFactory: No factory registered for id <CFUUID 0x6000029a5b80> F8BB1C28-BAE8-11D6-9C31-00039315CD46 cannot add handler to 0 from 1 - dropping nw_socket_copy_info [C1:2] getsockopt TCP_INFO failed [102: Operation not supported on socket] nw_socket_copy_info getsockopt TCP_INFO failed [102: Operation not supported on socket] Registering library (/Library/Developer/CoreSimulator/Volumes/xrOS_22N840/Library/Developer/CoreSimulator/Profiles/Runtimes/xrOS 2.2.simruntime/Contents/Resources/RuntimeRoot/System/Library/PrivateFrameworks/CoreRE.framework/default.metallib) that already exists in shader manager. Library will be overwritten. cannot add handler to 0 from 1 - dropping Cannot find a BindPoint for any bind path: "", "" Sync object without snapshot while removing view (id: 2816861686082450363, type: 6373420419761316588[SelectableSceneContentIdentifierComponent]). But i think only Cannot find a BindPoint for any bind path: "", "" is relevant.

Is it possible to use a local wifi router connecting Vision Pro and Mac for developing? I tried from Unity and Xcode. From Unity, the host app wouldn't open without WIFI (internet connection) From Xcode, I can see the Vision Pro paired, but while try to run there's no device listed. Any suggestions? Thanks a lot, /Ruiying

I was trying to use a local Wifi router to connect Vision Pro and Mac for developing. From Unity, the host on Vision Pro wouldn't open; from Xcode I can see vision pro paired but by the Run button there's no device listed...thanks any ideas? /Ruiying

Using a 360 image that I have taken with 72MP with a Insta360 X3 I would like to add those images into my VisionPro and see them surrounding me completely as we expect of a 360 image. I was able to do by performing the described on some tutorial. The problem is the quality. On my 2D window the image looks with great quality. I will still write down the code: struct ImmersiveView: View { @Environment(AppModel.self) var appModel var body: some View { RealityView { content in content.add(createImmersivePicture(imageName: appModel.activeSpace)) } } func createImmersivePicture(imageName: String) -> Entity { let sphereRadius: Float = 1000 let modelEntity = Entity() let texture = try? TextureResource.load(named: imageName, options: .init(semantic: .raw, compression: .none)) var material = UnlitMaterial() material.color = .init(texture: .init(texture!)) modelEntity.components.set( ModelComponent( mesh: .generateSphere( radius: sphereRadius ), materials: [material] ) ) modelEntity.scale = .init(x: -1, y: 1, z: 1) modelEntity.transform.translation += SIMD3<Float>(0.0, 10.0, 0.0) return modelEntity } } Since the quality is a problem. I thought about reducing the radius of the sphere or decreasing the scale. On both cases, nothing changes. I have tried: modelEntity.scale = .init(x: -0.5, y: 0.5, z: 0.5) And also let sphereRadius: Float = 2000, let sphereRadius: Float = 500, but nothing is changed. I also get the warning: IOSurface creation failed: e00002c2 parentID: 00000000 properties: { IOSurfaceAddress = 4651830624; IOSurfaceAllocSize = 35478941; IOSurfaceCacheMode = 0; IOSurfaceMapCacheAttribute = 1; IOSurfaceName = CMPhoto; IOSurfacePixelFormat = 1246774599; } IOSurface creation failed: e00002c2 parentID: 00000000 property: IOSurfaceCacheMode IOSurface creation failed: e00002c2 parentID: 00000000 property: IOSurfacePixelFormat IOSurface creation failed: e00002c2 parentID: 00000000 property: IOSurfaceMapCacheAttribute IOSurface creation failed: e00002c2 parentID: 00000000 property: IOSurfaceAddress IOSurface creation failed: e00002c2 parentID: 00000000 property: IOSurfaceAllocSize IOSurface creation failed: e00002c2 parentID: 00000000 property: IOSurfaceName Is there anything I can do to reduce the radius or just to improve the quality itself?

My visionOS requires access to users' personal photos. The trigger mechanism is: when user firstly opens a FooView, a task attached to that FooView and calling let status = PHPhotoLibrary.authorizationStatus(for: .readWrite), if the status is .notDetermined, then calling PHPhotoLibrary.requestAuthorization(for: .readWrite, handler: authCompletionHandler) to let visionOS pop out a window to request Photo access. However, the app crashes every time when user selects Limited Access and the system try to pop out a photo library picker. And btw, I have set Prevent limited photos access alert to Yes, but it shouldn't affect the behavior here I guess. There was a debugger message here: *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Presentations are not permitted within volumetric window scenes.' However, the window this view belongs to is a .plain style window (though there were 3D object appearing in the other view of same windowgroup) This is my code snippet if this helps: checkAndUpdatePhotoAuthorization is just a wrapper of PHPhotoLibrary.authorizationStatus(for: .readWrite) private func checkAndUpdatePhotoAuthorization() -> PHAuthorizationStatus { let currentStatus = PHPhotoLibrary.authorizationStatus(for: .readWrite) switch currentStatus { case .authorized: print("Photo library access authorized.") isPhotoGalleryAuthorized = true isPhotoGalleryLimited = false isPhotoGalleryAccessRestricted = false isPhotoGalleryDetermined = true case .limited: print("Photo library access limited.") isPhotoGalleryLimited = true isPhotoGalleryAuthorized = false isPhotoGalleryAccessRestricted = false isPhotoGalleryDetermined = true case .notDetermined: isPhotoGalleryDetermined = false print("Photo library access not determined.") case .denied: print("Photo library access denied.") isPhotoGalleryAuthorized = false isPhotoGalleryLimited = false isPhotoGalleryAccessRestricted = false showSettingsAlert = true isPhotoGalleryDetermined = true case .restricted: print("Photo library access restricted.") isPhotoGalleryAuthorized = false isPhotoGalleryLimited = false isPhotoGalleryAccessRestricted = true showPhotoAuthExplainationAlert = true isPhotoGalleryDetermined = true @unknown default: print("Photo library Unknown authorization status.") isPhotoGalleryAuthorized = false isPhotoGalleryLimited = false isPhotoGalleryAccessRestricted = false isPhotoGalleryDetermined = true } return currentStatus } And then FooView attaches task to fire up checkAndUpdatePhotoAuthorization() var body: some View { EmptyView() } .task { try? await Task.sleep(for: .seconds(1.0)) let status = self.checkAndUpdatePhotoAuthorization() if status == .notDetermined { DispatchQueue.main.async { PHPhotoLibrary.requestAuthorization(for: .readWrite, handler: authCompletionHandler) } } Another thing worth to mention is that SOMETIMES it won't crash when running on a debug build. But it crashes when it comes to TF. Any other idea? Big thanks in advance XCode version: 16.2 beta 3 VisionOS version: 2.2

What will be the pros and cons if unreal engine is used in apple vision pro? What are the issues that unreal will face in future on apple vision pro? What will be the specifications required for unreal to work on vision pro?

Suppose there was an immersiveSpace, and an Entity() being added to the space as child entity of the content. This entity is responsible for playing background music by calling prepareAudio, gaining a controller and play the music. (check the basic code below) When it was playing music, a .plain window and an immersiveSpace are both presented. I believe this immersiveSpace is holding the handle of the controller so as long as immersiveSpace is open, the music won't stop. However if I close the .plain window (by closing system-level close button), the music just stopped. But the immersiveSpace is still open. If right now I check the value of controller.isPlaying, it was still true. But you just cannot hear the music anymore. To reproduce, simply open an visionOS template App project, selecting volume and full immersive, and replace some code inImmersiveView.swift with the code below. Also simply drag any .mp3 file and replace the AudioFileResource's name. And you could reproduce this bug. RealityView { content in // Add the initial RealityKit content if let immersiveContentEntity = try? await Entity(named: "Immersive", in: realityKitContentBundle) { content.add(immersiveContentEntity) // Put skybox here. See example in World project available at // https://developer.apple.com/ if let audioResource = try? await AudioFileResource(named: "anyMP3file.mp3") { let ent = Entity() immersiveContentEntity.addChild(ent) let controller = ent.prepareAudio(audioResource) controller.play() } } } I wonder why this happen? I mean how should I keep the music playing when I close the .plain window? Thanks!

Currently I want to recreate a window which is similar to system window in ImmersiveSpace. But we only can use the meter unit in RealityKit. I create a plane entity, I don't know how to set the size using meter unit to make the plane's size totally consistent with the system window. Also, I want to know the z and y position of the system window in the immersive space.

I started a new project using RealityKit and RealityView, intended as an AR app on iPhone and iPad, but eventually VisionOS as well. I'm challenged because I find much of the recent documentations, WWDC videos, etc, include features that are VisionOS only. Right now, I would simply like to create some gesture functionality that is similar to AR Quick Look defaults, meaning drag to reposition, two fingers to rotate or zoom. In the past, this would be implemented with something like: arView.installGestures([.all], for: entity) however, with RealityView I don't know how (or if possible) to access an ARView. In RealityKit, I have found this doc: https://developer.apple.com/documentation/realitykit/transforming-realitykit-entities-with-gestures However, many of the features in that posting are VisionOS only, and I've found no good documentation on the topic that is specific or at least compatible with iOS. I know reverting to an ARView is an option, but I want to use RealityView if at all possible as I see it as more forward-looking.

Hi, are we allowed to push the default support in Package.swift up to iOS 18 to allow for the latest APIs? And with the terms of the competition, can we use stock 3D USDZ assets? Thank you!

Hi everyone, I've been exploring an idea that involves using virtual light sources in VisionOS/RealityKit to interact with real-world objects. Specifically, I'd like to simulate a scenario where a virtual spotlight or other light source casts light or shadows onto real-world environments, creating the effect of virtual lighting interacting with physical surroundings. Is this currently feasible within VisionOS/RealityKit? Thank you!

I have Mac mini M4 with 16GB memory, the Xcode is 16.1, when I test my Vision Pro App with the Simulator, it is very slow and system shows the memory is under the high pressure. How do I run/test/debug the application on Vision Pro directly? Tried to add my Vision Pro to my developer account, it didn't work due to cannot find UDID, when I hook the USB to the battery, it only shows Battery device ID.

I want to create a screenshot (static image) of the current view on the Apple Vision Pro using written code in visionOS. Unfortunately, I currently can’t find a way to achieve this. The only option I’ve found so far is through Reality Composer Pro. However, since I want to accomplish this directly through code, this approach is not an option for me.

Is there any way to detect if an entity is being looked at in a RealityView. I know it is possible to add a "HoverEffectComponent()" which will highlight the entity a little when you gaze on it, but there doesn't seem to be any way to call a function from this. There is also no GazeGesture or anything similar.