In Vision OS app, We have two types of windows:
Main App Window – This is the default window that launches when the app starts. It displays the video listings and other primary content.
Immersive Space Window – This opens only when a user starts streaming or playing a video.
Issue:
When entering the immersive space, the main app window remains visible in front of it unless manually closed. To avoid this, I currently close the main window when transitioning to immersive space and reopen it when exiting. However, this causes the app to restart instead of resuming from its previous state.
Desired Behavior:
I want the main app window to retain its state and seamlessly resume from where it was before entering immersive mode, rather than restarting.
Attempts & Challenges:
Tried managing opacity, visibility, and state preservation, but none worked as expected.
Couldn’t find a way to push the main window to the background while bringing the immersive space to the foreground.
Looking for a solution to keep the main window’s state intact while transitioning between immersive and normal modes.
General
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I'm working on a school project that allows users to open a .USDZ file (using Quick Look) on the webpage while using Apple Vision Pro to put the object in their physical envirnment, the project is deployed on Vercel. I'm testing the page with my apple vision pro, when I click open the .USDZ file, I'm seeing a triangle with an exclamation mark while it's trying to load, but it won't load. Does anybody know how to troubleshoot this issue?
Hi, Could anyone share some insights on how to get and track the 3D coordinates of real objects in the environment in playgrounds? I searched for some resources and noticed ARKit, Reality may be helpful but not sure how to do it.
I would like to integrate the object capture API with a ML model for analysis. So, i will need to get the current frame into CG images for further process.
Thanks in advance !
I am running a Spatial Rendering App template demo, it shows “No People Found ” “There is no one nearby to share with”.
How can I stream videos rendered by Mac to my vision pro
I am using macOS 26.0, visionOS 26, Xcode 26
Topic:
Spatial Computing
SubTopic:
General
Hi everyone,
I need to synchronize the playback of RealityKit Timelines via SharePlay.
To do this I am trying to get the references of the timelines using "AnimationPlaybackController" and "AnimationResource". In my realitykit scene I have configured both an animation (with blender), and a timeline, the animation starts correctly when the realitykit scene starts, the timeline not.
Below the code:
struct ContentView: View {
@State private var subscriptions = [EventSubscription]()
@Environment(AppModel.self)
private var appModel
let rootEntity = Entity()
@State var testEntity: Entity?
@State var testAnimation: AnimationResource?
@State var testController: AnimationPlaybackController?
init() {
CubeComponent.registerComponent()
}
var body: some View {
RealityView { content in
content.add(rootEntity)
if let scene = try? await Entity(named: "Room", in: realityKitContentBundle) {
rootEntity.addChild(scene)
playAnimations(from: content)
}
}
.gesture(SpatialTapGesture().targetedToAnyEntity()
.onEnded({ value in
_ = value.entity.applyTapForBehaviors()
if let testEntity, let testAnimation {
testController = testEntity.playAnimation(testAnimation.repeat())
}
})
)
}
func playAnimations(from content: RealityViewContent) {
subscriptions.append(content.subscribe(to: ComponentEvents.DidAdd.self, componentType: AnimationLibraryComponent.self, { event in
let entity = event.entity
entity.components[AnimationLibraryComponent.self]?.animations.forEach({ (key, value) in
if value.definition is AnimationGroup {
if key == "/Room/TestTimeline" {
let controller = entity.playAnimation(value.repeat())
testEntity = entity
testAnimation = value
appModel.syncronizedAnimations[key] = .init(name: key, animationController: controller, entityName: entity.name)
}
} else {
if entity.name == "SphereInteractable" {
let controller = entity.playAnimation(value.repeat())
appModel.syncronizedAnimations[key] = .init(name: key, animationController: controller, entityName: entity.name)
}
}
})
}))
}
}
the variables testEntity, testAnimation and testController are for testing purposes only. If I try to start the animations in the playAnimations function, only the animation created via blender starts (the one related to the object "SphereInteractable"), the Timeline starts only if I save a reference and I play it with a tap gesture or with a delay of ! seconds with DispatchQueue.asyncAfter called in the onAppear.
is there a better way to handle this? The goal is to have a reference of the AnimationPlaybackController of the timeline, in order to sync the animation via shareplay.
Thanks
I"m trying to create a simple app for my students that will display .heic images taken with a nikon and them converted to .heic in the photos app. My attempts only result in the QuickLook viewer showing the images in 2d. Any guidance? Here is my ContentView:
import SwiftUI
import QuickLook
struct ContentView: View {
@State private var showQuickLook = false
@State private var previewURL: URL? = nil // State to store the URL for Quick Look
var body: some View {
VStack {
Button("See it in 3D") {
// Set the URL for the file from the bundle and toggle Quick Look presentation
if let imageURL = Bundle.main.url(forResource: "Michelia_fuego", withExtension: "heic") {
previewURL = imageURL // Set the preview URL if the image is found
showQuickLook.toggle() // Toggle to trigger Quick Look presentation
} else {
print("File not found") // Print error if the file is missing
}
}
.quickLookPreview($previewURL) // Binding to the URL
}
}
}
#Preview {
ContentView()
}
I've been struggling with this for far too long so I've decided to finally come here and see if anyone can point me to the documentation that I'm missing. I'm sure it's something so simple but I just can't figure it out.
I can SharePlay our test app with my brother (device to device) but when I open a volumetric window, it says "not shared" under it. I assume this will likely fix the video sharing problem we have as well. Everything else works so smooth but SharePlay has just been such a struggle for me. It's the last piece to the puzzle before we can put it on the App Store.
iOS currently restricts background Bluetooth advertising and scanning in order to preserve battery life and protect user privacy. While these restrictions serve important purposes, they also limit legitimate use cases where users have explicitly opted in to proximity-based experiences.
The core challenge is that modern social applications need a way to detect when users are physically present at the same location or event without requiring every participant to keep their app in the foreground. Under the current system, background BLE advertising is heavily throttled and can only transmit a limited payload, background scanning intervals are sparse and unpredictable, peer-to-peer proximity detection cannot be maintained reliably when apps are in the background, and Background App Refresh is non-deterministic, making any kind of time-based proximity validation impossible.
A proposed enhancement would be to introduce an “Enhanced Proximity Permission.” This would allow developers to enable reliable background BLE advertising and scanning for declared time windows, such as a maximum of eight hours. It would also allow devices running the same app to detect each other’s proximity using ephemeral, rotating identifiers that preserve privacy, with clear user consent and prominent indicators whenever the feature is active.
Unlocking this capability would open up new categories of applications. Live events could offer automatic attendance tracking at concerts, conferences, or sports venues. Retail environments could support opt-in foot traffic analysis and dwell-time insights. Social apps could allow users to find friends at festivals, campuses, or other large venues. Safety applications could extend to crowd density monitoring and contact tracing beyond COVID-era needs. Gaming could offer real-world multiplayer experiences based on physical proximity, and transportation providers could verify rideshare pickups or measure public transit flows automatically.
Privacy safeguards would remain central. Permissions would be time-boxed and expire after an event or session. A mandatory visual indicator would be displayed whenever proximity tracking is active. A user-facing dashboard would show all apps granted enhanced proximity access. Permissions would automatically be revoked after a period of non-use, and only ephemeral tokens not permanent identifiers would be broadcast.
The industry impact would be significant. With this enhancement, iOS could power the next generation of location-aware social platforms while maintaining Apple’s leadership in privacy through explicit user control and transparency. Current alternatives, such as requiring users to keep apps in the foreground or deploying dedicated hardware beacons, produce poor user experiences and constrain innovation in spatial computing and social applications.
Can anyone from Apple consider this change? Having to buy iBeacons is brutal and means slower adoption. Please reconsider this for users who opt in.
At a recent community meeting we were wondering how Apple creates this soft-edge effect around the occlusion cutouts. We see this effect on keyboard cutouts, iPhone cutouts, and in progressive spaces.
An example: Notice the soft edged around the occlusion cutout for the keyboard
One of our members created some Shader Graph materials to explore soft edges. These work by sending data into the opacity channel of the PreviewSurface node.
Unfortunately, the Occlusion Surface nodes lack any sort of input. If you know how to blend these concepts with RealityKit Occlusion, please let us know!
I have a visionOS app using immersive space with RealityView. The app adds RealityKit entities to the app's Scene instance, and uses raycast to find CollisionCastHits.
I want now to write a unit test to check if the app finds the right hits.
To do so, I have to access the Scene instance to add entities, and to check if they are hit by scene.raycast.
But how can I access the scene instance?
I can access it e.g. after creating the RealityView via its content parameter, or via @Environment(\.realityKitScene). But this seems not to be possible in a unit test.
I tried the following test function:
@MainActor @Test func test() async throws {
var scene: RealityKit.Scene?
await withCheckedContinuation { continuation in
_ = RealityView(make: { content in
print("make")
let entity = Entity()
content.add(entity)
scene = entity.scene
continuation.resume()
})
}
#expect(scene != nil)
}
But this logs
◇ Test test() started.
SWIFT TASK CONTINUATION MISUSE: test() leaked its continuation!
The reason is apparently that the make closure of RealityView is only called when SwiftUI calls it within the body of a SwiftUI View.
So, is it possible at all to access the app's scene i a unit test?
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.
I am experiencing an issue where USDZ files exported from Blender do not display textures when opened in Apple Vision Pro Quick Look. Instead of the expected materials, the model appears completely white, as if the textures are missing or not being recognized by the rendering engine.
Topic:
Spatial Computing
SubTopic:
General
I want an AR character to be able to look at a position while still playing the characters animation.
So far, I managed to manually adjust a single bone rotation using
skeletalComponent.poses.default = Transform(
scale: baseTransform.scale,
rotation: lookAtRotation,
translation: baseTransform.translation
)
which I run at every rendering update, while a full body animation is running.
But of course, hardcoding single joints to point into a direction (in my case the head) does not look as nice, as if I were to run some inverse cinematic that includes, hips + neck + head joints.
I found some good IKRig code in Composing interactive 3D content with RealityKit and Reality Composer Pro.
But when I try to adjust rigs while animations are playing, the animations are usually winning over the IKRig changes to the mesh.
I’ve submitted the following feedback:
FB13820942 (List Outline View Not Using Accent Color on Disclosure Caret for visionOS)
I’d appreciate help on this to see if I’m doing something wrong or indeed it’s the way visionOS currently works and it’s a suggested feedback.
In Vision OS app, I have two types of windows:
Main App Window – This is the default window that launches when the app starts. It displays the video listings and other primary content.
Immersive Space Window – This opens only when a user starts streaming or playing a video.
Issue:
When entering the immersive space, the main app window remains visible in front of it unless manually closed. To avoid this, I currently close the main window when transitioning to immersive space and reopen it when exiting from immersive space. However, this causes the app to restart instead of resuming from its previous state.
Desired Behavior:
I want the main app window to retain its state and seamlessly resume from where it was before entering immersive mode, rather than restarting.
Attempts & Challenges:
Tried managing opacity, visibility but none worked as expected.
Couldn’t find a way to push the main window to the background while bringing the immersive space to the foreground.
Looking for a solution to keep the main window’s state intact while transitioning between immersive and normal modes.
After re-launching the immersive space in my app 5-10 times, the WorldTrackingProvider stops working. Only restarting the app will allow it to start working again.
Only on device, not the simulator.
I get these errors when it happens:
The device_anchor can only be queried when the world tracking provider is running.
ARPredictorRemoteService <0x107cbb5e0>: Service configured with error: Error Domain=com.apple.arkit.error Code=501 "(null)"
Remote Service was invalidated: <ARPredictorRemoteService: 0x107cbb5e0>, will stop all data_providers.
ARRemoteService: remote object proxy failed with error: Error Domain=NSCocoaErrorDomain Code=4099 "The connection to service with pid 81 named com.apple.arkit.service.session was invalidated from this process." UserInfo={NSDebugDescription=The connection to service with pid 81 named com.apple.arkit.service.session was invalidated from this process.}
ARRemoteService: weak self released before invalidation
@Observable class VisionPro {
let session = ARKitSession()
let worldTracking = WorldTrackingProvider()
func transformMatrix() async -> simd_float4x4 {
guard let deviceAnchor = worldTracking.queryDeviceAnchor(atTimestamp: CACurrentMediaTime())
else { return .init() }
return deviceAnchor.originFromAnchorTransform
}
func runArkitSession() async {
Task {
try? await session.run([worldTracking])
}
}
}
which I call from my RealityView:
.task {
await visionPro.runArkitSession()
}
I am working on an app that will allow a user to load and share their model files (usdz, usda, usdc). I'm looking at security options to prevent bad actors. Are there security or validation methods built into ARKit/RealityKit/CloudKit when loading models or saving them on the cloud? I want to ensure no one can inject any sort of exploit through these file types.
Is it possible to manage the behavior of timeline totally from code?
I am exploring the Compose interactive 3D content in Reality Composer Pro sample project after seeing the related video, but the example shows only the use of Behaviors from RCP to activate timelines actions.
I was wondering if it is possible to, somehow, retrieve some kind of timeline controller that allows me access to its informations just like the AnimationPlaybackController does with single animations.
What I would like to achieve is being able to play/pause/retrieve timestamp from them in order to allow synchronization between different users on SharePlay
I've tried following apple's documentation to apply a video material on a Model Entity, but I have encountered a compile error while attempting to specify the Spatial Audio type.
It is a 360 video on a Sphere which plays just fine, but the audio is too quiet compared to the volume I get when I preview the video on Xcode. So I tried tried to configure audio playback mode on the material but it gives me a compile error:
"audioInputMode' is unavailable in visionOS
audioInputMode' has been explicitly marked unavailable here
RealityFoundation.VideoPlaybackController.audioInputMode)"
https://developer.apple.com/documentation/realitykit/videomaterial/
Code:
let player = AVPlayer(url: url)
// Instantiate and configure the video material.
let material = VideoMaterial(avPlayer: player)
// Configure audio playback mode.
material.controller.audioInputMode = .spatial // this line won’t compile.
VisionOS 2.4, Xcode 16.4, also tried Xcode 26 beta 2.
The videos are HEVC MPEG-4 codecs.
Is there any other way to do this, or is there a workaround available?
Thank you.