Discuss Spatial Computing on Apple Platforms.

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Logitech Muse: OS-level support?
I've been experimenting with the Muse pen and understand that it can be accessed by my app through a SpatialTrackingSession, but is there any current or planned support for devices like this as for general UI input like game controllers are? For example, using the button as a tap analogue for SwiftUI views.
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107
Oct ’25
Help with visionOS pushWindow issues requested
I first started using the SwiftUI pushWindow API in visionOS 26.2, and I've reported several bugs I discovered, listed below. Under certain circumstances, pushed window relationships may break, and this behavior affects all other apps, not just the app that caused the problem, until the next device reboot. In other cases, the system may crash and restart. (FB21287011) When a window presented with pushWindow is dismissed, its parent window reappears in the wrong location (FB21294645) Pinning a pushed window to a wall breaks pushWindow for all other apps on the system (FB21594646) pushWindow interacts poorly with the window bar close app option (FB21652261) If a window locked to a wall calls pushWindow, the original window becomes unlocked (FB21652271) If a window locked in place calls pushWindow and the pushed window is closed, the system freezes (FB21828413) pushWindow, UIApplication.open, and a dismissed immersive space result in multiple failures that require a device reboot (FB21840747) visionOS randomly foregrounds a backgrounded immersive space app with a pushed window's parent window visible instead of the pushed window (FB21864652) When a running app is selected in the visionOS home view, windows presented with pushWindow spontaneously close (FB21873482) Pushed windows use the fixed scaling behavior instead of the dynamic scaling behavior I'm posting the issues here in case this information is helpful to other developers. I'd also like to hear about other pushWindow issues developers have encountered, so I can watch out for them. Questions: I've discovered that some of the issues above can be partially worked around by applying the defaultLaunchBehavior and restorationBehavior scene modifiers to suppress window restoration and locking, which pushWindow appears to interact poorly with. Are there other recommended workarounds? I've observed that the Photos and Settings apps, which predate the pushWindow API, are not affected by the issues I reported. Are there other more reliable ways I could achieve the same behavior as pushWindow without relying on that API? I'd appreciate any guidance Apple engineers could provide. Thank you.
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3w
How to implement the semi-transparent overlay effect in Immersive View?
I noticed that when I drag the menu window in an Immersive View, the entities behind it becomes semi-transparent, and the boundary between virtual and real-world objects is very pronounced. May I ask how does VisionOS implement this effect? Is there any API or technique I can use in my own code to enable the same semi-transparent overlay - even when I am not dragging the menu window?
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142
May ’25
New Spatial Rendering App on macOS doesn't display on visionOS device
I created a new Spatial Rendering App from the template in Xcode 26.0.1. When I run the app, click 'Show Immersive Space' and select my Vision Pro from the pop-up dialog, the content in the dialog flickers (which seems to indicate something crashed) and nothing appears on my Vision Pro. I'm running the released macOS 26.0 (25A354) and visionOS 26.0 (23M336). Filed as FB20397093.
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353
Sep ’25
多相机切换时画质参数差异显著
切换后两者的亮度、色彩饱和度、对比度等画质参数差距较大,导致画面视觉体验割裂,破坏直播连贯性,影响用户观看沉浸感。 期望 "· 对标常规直播单反相机的画质基准,优化 Vision Pro 的画面亮度、色彩还原能力; · 提供设备端或配套软件的画质自定义调节功能(亮度、对比度、色温等),支持直播前手动校准,确保与单反相机画面风格一致。"
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137
Dec ’25
Depth matrix accuracy with the iPhone 14 Pro and Lidar
Hello Community, I’m currently working with the sample code “CapturingDepthUsingTheLiDARCamera” and using it to capture the depth map of an image taken with the iPhone 14 Pro. From this depth map, I generate a point cloud using the intrinsic camera parameters. I've noticed that objects not facing the camera directly appear distorted in the resulting point cloud. For example: An object with surfaces that are perpendicular to each other appears with a sharper angle in the point cloud — around 60° instead of 90°. My question is: Is this due to the general accuracy limitations of the LiDAR sensor? Or could it be related to the sample code? To obtain the depth map, I’m using: AVCapturePhoto.depthData.converting(toDepthDataType: kCVPixelFormatType_DepthFloat32) Thanks in advance for your help!
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133
Apr ’25
new algorithm significantly improves PhotogrammetrySession?
I noticed in the latest macOS beta 3 that there was this update: A new algorithm significantly improves PhotogrammetrySession reconstruction quality of low-texture objects not captured with the ObjectCaptureSession front end. It will be downloaded and cached once in the background when the PhotogrammetrySession is used at runtime. If network isn’t available at that time, the old low quality model will be used until the new one can be downloaded. There is no code change needed to get this improved model. (145220451) I am not noticing any difference to before with the reconstructions I tested so I am assuming it's reverting to the old model but in the logs there is no way to see if it succeeds or fails to download that new model. do you have any more information on what was improved here with some examples and what we should be looking for? also how can confirm the download of that new model has not failed?
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354
Jul ’25
Spaceship sample code does not compile
I'm getting the following error message when compiling the Apple provided sample, Spaceship game for the Apple Visio Pro. I've already tried deleting the derived data resetting the package cache and restarting Xcode but still getting the following error: [xrsimulator] Exception thrown during compile: Cannot get rkassets content for path /Users/myoungkang/Downloads/CreatingASpaceshipGame/Packages/Studio/Sources/Studio/Studio.rkassets because 'The file “Studio.rkassets” couldn’t be opened because you don’t have permission to view it.' error: Tool exited with code 1
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74
Apr ’25
visionOS 2.0 – Persist room‑fixed RealityKit entities on walls across app launches (WorldAnchor?)
I want to let users place 2D/3D “artworks” on detected walls and have them reappear in exactly the same real‑world spot after quitting and relaunching the app (like widgets do, but for my own entities).Environment: Xcode 26, visionOS 2.0, RealityKit + ARKitSession/WorldTrackingProvider Entities are parented to a holder that’s aligned to a wall via plane/mesh raycasts What I’ve tried: Create a WorldAnchor at placement, save UUID + full 4×4 transform On next launch, re-create the WorldAnchor (or set the saved transform) and attach the entity Gate restore on relocalization/mesh updates and disable all raycast/search after restore Issue: After relaunch, placement still resolves relative to current device pose, not the same wall position. Questions: Is there a public API in visionOS 2.0 to persist app‑managed world anchors across sessions (room‑fixed), e.g., AnchorStore or equivalent? If not, what’s the recommended pattern to reliably restore wall‑anchored content? Are persistence features mentioned for widgets/windows available to third‑party RealityKit entities?
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191
Oct ’25
Can't establish spatial connection after visionOS update
After updating to visionOS 26.2 Beta 2 (and Beta 3), I'm unable to establish a spatial connection to Vision Pro. This was working fine before the update. To test, I've created a fresh spatialApp project from the Xcode template with zero modifications, but I'm hitting the same issue - the Vision Pro is discovered but won't connect. Am I forgetting to update the config somewhere? Any ideas what might be causing this and how to fix it? Thanks! Warning: -[NSWindow makeKeyWindow] called on <NSWindow: 0xa1f811900> windowNumber=1b9 which returned NO from -[NSWindow canBecomeKeyWindow]. ((processConfiguration != nil && configuration != nil) || (processConfiguration == nil && configuration == nil)) - /AppleInternal/Library/BuildRoots/4~CBS0ugAIF7BrQZjLe6r0lhPXO4GJmNDTovxYoV0/Library/Caches/com.apple.xbs/Sources/ExtensionKit/ExtensionKit/Source/HostViewController/Internal/EXHostSessionDriver.m:80: `processConfiguration` and `configuration` must be both non-nil or both nil Unable to obtain a task name port right for pid 415: (os/kern) failure (0x5) CCContextDeviceGroup.mm(291):+[CCContextDeviceGroup checkBinaryArchivesForDevice:withBundle:]: Failed to find any binary shader archive
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112
Nov ’25
MagnifyGesture in RealityView does not work on macOS
I have tested the MagnifyGesture code below on multiple devices: Vision Pro - working iPhone - working iPad - working macOS - not working In Reality Composer Pro, I have also added the below components to the test model entity: Input Target Collision For macOS, I tried the touchpad pinch gesture and mouse scroll wheel, but neither approach works. How to resolve this issue? Thank you. import SwiftUI import RealityKit import RealityKitContent struct ContentView: View { var body: some View { RealityView { content in // Add the initial RealityKit content if let immersiveContentEntity = try? await Entity(named: "Immersive", in: realityKitContentBundle) { content.add(immersiveContentEntity) } } .gesture(MagnifyGesture() .targetedToAnyEntity() .onChanged(onMagnifyChanged) .onEnded(onMagnifyEnded)) } func onMagnifyChanged(_ value: EntityTargetValue<MagnifyGesture.Value>) { print("onMagnifyChanged") } func onMagnifyEnded(_ value: EntityTargetValue<MagnifyGesture.Value>) { print("onMagnifyEnded") } }
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72
Mar ’25
VisionOS 2 - Passthrough in screen capture
I'm trying to develop an app that broadcasts what the user sees (priorly we were using main camera access) but now we'd like to investigate and try with this option. I have set up the BroadcastExtension, I've added the picker, I click on my button, I can see my broadcast extension in the options list in the control center, once I click start, it stops after 1 second more or less. I'm not able to get anything in the console from my Sample Handler (prints or logs or anything). I can see however in the console.app some misleading information (one after the other): [INFO] -[RPRecordingManager getSystemBroadcastExtensionInfo:]_block_invoke:1333 Extension has passthrough license [INFO] -[RPRecordingManager getSystemBroadcastExtensionInfo:]_block_invoke:1336 Extension does not have passthrough license We have the entreprise license, the capability and I did add the capability on the extension target as well.
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223
Dec ’25
Unity PolySpatial – Live handheld camera feed of graspable objects not rendering on Vision Pro
I am developing a Unity application for the Apple Vision Pro using PolySpatial and RealityKit integration. The goal is to create a graspable object (for example, a handheld cube) that includes a secondary camera. When the user grabs and moves the object, the secondary camera should render its view to a RenderTexture, which is displayed on a quad attached to the object, simulating a live camera screen. In the Unity Editor, this setup works correctly. The RenderTexture updates in real time, and the quad displays the camera’s view as expected. However, when building and running the application on the Vision Pro, the quad only displays the clear background color of the secondary camera. No scene content appears. The graspable interaction itself works fine: the object can be grabbed and moved as intended. Steps I have taken: Created a new layer (CameraFeed) and assigned the relevant objects to it. Set the secondary camera’s culling mask to render only the CameraFeed layer. Assigned the RenderTexture as the camera’s target texture. Applied the RenderTexture to an Unlit/Texture material on a quad. Confirmed the camera is active and correctly positioned relative to the object. From my research, it appears that once objects are managed by RealityKit through PolySpatial (for example, made graspable), they are no longer rendered through Unity's normal camera pipeline. Only the main XR camera (managed by RealityKit) seems able to see these objects. Secondary Unity cameras cannot render RealityKit-synced content to a RenderTexture. If this is correct, it seems there is currently no way to implement a true live secondary camera feed showing graspable objects on Vision Pro using Unity PolySpatial. My questions are: Is there any official way to enable multiple camera rendering of RealityKit-managed objects through PolySpatial? Are there known workarounds to simulate a live camera feed that still allows objects to be grabbed? Has anyone found alternative design patterns or methods for this kind of interaction? Environment: Unity 6.0 , PolySpatial 2.2.4, Apple Vision OS XR 2.2.4 Any insight or suggestions would be greatly appreciated. Thank you.
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124
Apr ’25
拍摄画面亮度不稳定(动态波动)
画面亮度存在无规律动态波动(时亮时暗),且无手动控制入口,导致商品颜色还原失真、主播面部曝光异常(过曝 / 欠曝),严重影响直播展示效果。 期望 "· 优化直播模式的自动曝光算法,提升复杂光线环境下的亮度稳定性; · 增加 “直播模式” 专属亮度锁定功能,支持手动设定亮度参数并锁定,满足直播场景下的画质可控需求。 "
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355
Dec ’25
white gap between objects in RealityView
I want to display a huge image in RealityView in 3d space on Vision Pro. of course instead of one giant file I'm using a lot of big images. to achieve this, I'm generating multiple planes exactly beside each others and put each image on them. although the planes are exactly beside each others but there is still a white gap between them.(image below) **Does anybody know how to fix this issue? **
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155
May ’25
How to add visual thickness to a glass background view
Hi guys, In visionOS, when using a ZStack decorated with .glassBackgroundEffect(), you can see the 3D glass background from the front, but when viewed from the side, the view appears to have no thickness. However, I noticed that in an app built by Apple, when viewing a glass background view from the side, it appears to have thickness. I tried adding .frame(depth:) to a glass background view, but it appears as two separate layers spaced by the depth value. My question is: Is there a view modifier that adds visual thickness to a glass background view, as shown in the picture? Or, if not, how should I write a custom view modifier to achieve this effect? Thanks!
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113
May ’25
[Rnedering] Always display a Window in front of any Entity in a mixedImmersiveView?
Currently I am using mixed style immersive view to place both my WindowView(plain style) and ImmersiveView content together. The issue is that the rendering depth testing may always let the virtual content block my normal WindowView. Is it possible to manually set windowedVIew always displays in the front of my virtual view in mixed style immersion? (I know modelSortGroup but it doesn't quite fits here) Or if I can dynamically change the .progressive value when the immersive space is open (set the value to zero means .mixed itself right?)
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110
Mar ’25
Cannot reassign worldTracking / planeDetection providers in my PlacementManager when switching environments
Environment Xcode: 16.2 VisionOS SDK 2.4 Swift 6.1 Targets: Apple Vision Pro (immersive space) Frameworks: ARKit, RealityKit, SwiftUI What I’m Trying to Do I have a view-model class PlacementManager that holds two AR providers: private var worldTracking: WorldTrackingProvider private var planeDetection: PlaneDetectionProvider I want to dynamically replace these providers in a setEnvironment(_:) method (so I can save/clear a JSON scene and restart ARKit). What’s Happening If I declare them as : private let worldTracking = WorldTrackingProvider() private let planeDetection = PlaneDetectionProvider() I get compile-errors when I later do: self.worldTracking = newWorldTracking // Cannot assign to property: 'worldTracking' is a 'let' constant If I change them to un-initialized vars: private var worldTracking: WorldTrackingProvider private var planeDetection: PlaneDetectionProvider then in my init() I get: self used in property access 'worldTracking' before all stored properties are initialized Code snipet @Observable final class PlacementManager : ObservableObject { private var worldTracking: WorldTrackingProvider private var planeDetection: PlaneDetectionProvider // … other props … @MainActor init() { // error: self.worldTracking used before init… planeAnchorHandler = PlaneAnchorHandler(rootEntity: root) persistenceManager = PersistenceManager( worldTracking: worldTracking, rootEntity: root ) // … } @MainActor func setEnvironment(env: Environnement) async { let newWorldTracking = WorldTrackingProvider() let newPlaneDetection = PlaneDetectionProvider() try await appState!.arkitSession.run( [ newWorldTracking, newPlaneDetection ] ) self.worldTracking = newWorldTracking self.planeDetection = newPlaneDetection // … } } What I’ve Tried Giving them default values at declaration (= WorldTrackingProvider()) Initializing them at the top of init() before any use Passing the new providers into arkitSession.run(...) My Question What is the recommended Swift-style pattern to declare and reassign these ARKit provider properties so that: They’re fully initialized before use in init(), and I can swap them out later in setEnvironment(...) without compiler errors? Any pointers (or links to forum threads / docs) would be greatly appreciated!
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137
May ’25