Lately i got a lot of crashes on iOS 18 devices (mostly 13 Pro devices but also a 16 Pro Max), has anyone encountered similar issues and is there more information about offlineFloorPlanGeneration? com.apple.RoomScanCore.offlineFloorPlanGeneration EXC_BAD_ACCESS KERN_INVALID_ADDRESS 0x0000f5cab18e03c0 RoomScanCore RSFrameFromDictionary + 110992

We have a plane model (basecircle)without physics and rigid body components, and no gestures are implemented. However, when tapped, the model unexpectedly falls into infinity. func fetchEnvResource(){ var simpleMaterial = SimpleMaterial() env = try! Entity.loadModel(named: "bgMain5") env.position += [0,0,-10] envTexture = PhysicallyBasedMaterial() envTextureUnlit = UnlitMaterial() envTexture.baseColor = .init(texture: .init(try! .load(named: "bgMain5"))) envTextureUnlit.color = .init(texture: .init(try! .load(named: "bgMain5"))) env.isEnabled = false let anchor = AnchorEntity(world: [0, 0, -3]) baseCircle = ModelEntity(mesh: .generatePlane(width: 1.5, depth: 1.5, cornerRadius: 0.75), materials: [SimpleMaterial(color: .green, isMetallic: false)]) env.components.set(InputTargetComponent()) baseMaterial = PhysicallyBasedMaterial() baseMaterialUnlit = UnlitMaterial() baseMaterial.baseColor = .init(texture: .init(try! .load(named: "groundTexture"))) baseMaterial.baseColor.tint = UIColor(white: 1.0, alpha: CGFloat(textureOpacity)) baseCircle.model?.materials = [baseMaterial] baseCircle.generateCollisionShapes(recursive: false) baseCircle.components.set(InputTargetComponent()) baseCircle.components[PhysicsBodyComponent.self] = .init(PhysicsBodyComponent(massProperties: .default, mode: .static)) baseCircle.physicsBody = PhysicsBodyComponent( mode: .kinematic ) anchorEntity.addChild(baseCircle) baseCircle.position = [0,0,-3] baseCircle.isEnabled = false let cylinder = ModelEntity(mesh: .generateCylinder(height: 0.2, radius: 0.5), materials: [SimpleMaterial(color: .blue, isMetallic: false)]) cylinder.position = [0,-0.1,0] cylinder.generateCollisionShapes(recursive: false) cylinder.components[PhysicsBodyComponent.self] = .init(PhysicsBodyComponent(massProperties: .default, mode: .static)) cylinder.physicsBody = nil cylinder.scale = [500, 100, 100] anchor.addChild(cylinder) } The plane model in this issue is the BaseCircle. Any suggestions on how to solve this or potential fixes would be greatly appreciated

Hey, I have Enterprise Access on the account and have added the passthrough capability and the entitlement on the main project and the "Broadcast Upload" extension, too. The broadcast works except it returns a black screen. I am attaching some screenshots below of the entitlement file. I have tried searching online to no avail, so any help would be greatly appreciated. I am also attaching the code. import Foundation import AVFoundation import ReplayKit class VideoAssetWriter { private var isRecording = false private var outputStream: OutputStream? private func setupConnection() { guard outputStream == nil else { return } print("setting up connection.") let serverIP = macIP let port = 12345 var readStream: Unmanaged<CFReadStream>? var writeStream: Unmanaged<CFWriteStream>? CFStreamCreatePairWithSocketToHost(kCFAllocatorDefault, serverIP as CFString, UInt32(port), &readStream, &writeStream) guard let writeStream = writeStream?.takeRetainedValue() else { print("Failed to create write stream") return } self.outputStream = writeStream as OutputStream self.outputStream?.open() } func startRecording() { isRecording = true } func processVideoSampleBuffer(_ sampleBuffer: CMSampleBuffer) { print("Processing Sample 1") guard isRecording else { return } print("Processing Sample 2") sendVideoChunkToServer(sampleBuffer) } private func sendVideoChunkToServer(_ sampleBuffer: CMSampleBuffer) { guard let imageBuffer = CMSampleBufferGetImageBuffer(sampleBuffer) else { return } print("Processing Sample 3") let ciImage = CIImage(cvPixelBuffer: imageBuffer) let context = CIContext() guard let cgImage = context.createCGImage(ciImage, from: ciImage.extent) else { return } print("Processing Sample 4") let image = UIImage(cgImage: cgImage) if let imageData = image.jpegData(compressionQuality: 0.5) { guard imageData.count <= 10_000_000 else { print("Frame too large: \(imageData.count) bytes") return } if outputStream == nil { setupConnection() } print("sending frame size up connection.") // Convert to network byte order (big-endian) var frameSize = UInt32(imageData.count).bigEndian let sizeData = Data(bytes: &frameSize, count: MemoryLayout<UInt32>.size) _ = sizeData.withUnsafeBytes { outputStream?.write($0.baseAddress!.assumingMemoryBound(to: UInt8.self), maxLength: sizeData.count) } print("sending image data up connection.") // Send frame data _ = imageData.withUnsafeBytes { outputStream?.write($0.baseAddress!.assumingMemoryBound(to: UInt8.self), maxLength: imageData.count) } } } func stopRecording() { isRecording = false outputStream?.close() outputStream = nil } } This is the broadcast picker view wrapper: // Broadcast Picker View wrapper struct BroadcastButtonView: UIViewRepresentable { func makeUIView(context: Context) -> RPSystemBroadcastPickerView { let broadcastPickerView = RPSystemBroadcastPickerView( frame: CGRect(x: 0, y: 0, width: 200, height: 200) ) // Make sure this matches your broadcast extension bundle identifier broadcastPickerView.preferredExtension = "my-extension-bundle-identifier" broadcastPickerView.showsMicrophoneButton = false return broadcastPickerView } func updateUIView(_ uiView: RPSystemBroadcastPickerView, context: Context) { } } The extension SampleHandler: override func broadcastPaused() { print("paused broadcast") // User has requested to pause the broadcast. Samples will stop being delivered. } override func broadcastResumed() { print("resumed broadcast") // User has requested to resume the broadcast. Samples delivery will resume. } override func processSampleBuffer(_ sampleBuffer: CMSampleBuffer, with sampleBufferType: RPSampleBufferType) { print("broadcast received") assetWriter?.processVideoSampleBuffer(sampleBuffer) } Looking forward to any and all help. Information Property list: Information property list for the extension: The capabilities:

After I played the audio for the entity the sound was very low and I wanted to adjust the sound size. No api is found. What should I do if let audio = audioResources { entity.playAudio(audio) }

I want a sentence custom hover effect, not a button. I want a hover effect when you look at one sentence out of many sentences. So I searched for reference videos https://youtu.be/DftRTx1oX6E , https://developer.apple.com/videos/play/wwdc2023/10110/ on apple youtube and visionOS documentation. But I haven't gotten anywhere near my wish feature yet. I respectfully request someone to help me. :)

Hello Apple Team, I am working on a RealityKit project for iOS, where I need to place a 3D asset far away from the camera (approximately 15 to 30 meters). When enabling people occlusion, the 3D asset gets clipped when moved far away. Is it possible to enable people occlusion for assets at close range (less than 10 meters) while disabling it for assets farther away to prevent clipping? I understand that it is possible to switch configurations at runtime. However, I would like to place assets both close to and far from the camera simultaneously. Thank you for your help! Kind regards

PLATFORM AND VERSION Vision OS Development environment: Xcode 16.2, macOS 15.2 Run-time configuration: visionOS 2.3 (On Real Device, Not simulator) Please someone confirm I'm not crazy and this issue is actually out of my control. Spent hours trying to fix my app and running profiles because thought it was an issue related to my apps performance. Finally considered chance it was issue with API itself and made sample app to isolate problem, and it still existed in it. The issue is when a model entity moves around in a full space that was launched when the system environment immersion was turned up before opening it, the entities looks very choppy as they move around. If you take off the headset while still in the space, and put it back on, this fixes it and then they move smoothly as they should. In addition, you can also leave the space, and then turn the system environment immersion all the way down before launching the full space again, this will also make the entity moves smoothly as it should. If you launch a mixed immersion style instead of a full immersion style, this issue never arrises. The issue only arrises if you launch the space with either a full style, or progressive style, while the system immersion level is turned on. STEPS TO REPRODUCE https://github.com/nathan-707/ChoppyEntitySample Open my test project, its a small, modified vision os project template that shows it clearly. otherwise: create immersive space with either full or progressive immersion style. setup a entity in kinematic mode, apply a velocity to it to make it pass over your head when the space appears. if you opened the space while the Apple Vision Pros system environment was turned up, the entity will look choppy. if you take the headset off while in the same space, and put it back on, it will fix the issue and it will look smooth. alternatively if you open the space with the system immersion environment all the way down, you will also not run into the issue. Again, issue also does not happen if space launched is in mixed style.

I use ARKit to build an app, scan rooms to collect the spatial data of objects and re-construct the 3D scene. the problem is I found the depth map values captured in ARFrame significantly deviate from the real distances, even nonlinearly, for the distances below 1.5m, values are basically correct, but beyond 1.5m, they are smaller than real values. for example read 1.9m from the generated depthmap.tiff, but real distance is 3 meters. below is my code of generating tiff file to record depth map data: Generated TIFF file (captured from ARKit): as shown above, the maximum distance is around 1.9m, but real distance to that wall is more than 3 meters, and also you can see, the depth map picture captured in ARKit is quite blurry, particularly at far distance (> 2.0m), almost smeared out. Generated TIFF file (captured from AVFoundation): In comparison, the depth map captured from traditional AVFoundation and with the same hardware device is much clear, the values seem not in meter unit though.

I am a newby of spatial computing. Here I am learning how to use ARKit to capture the environment texture and apply it on a ModelEntity of RealityKit on Vision Pro. But I do not find a demo of how to use EnvironmentLightEstimationProvider. After checking the documentation, I also have some questions: EnvironmentProbeAnchor.environmentTexture is a MTLTexture, but EnvironmentResource needs a CGImage. How do I translate MTLTexture to CGImage(Forgive me that I do not know much about Metal or other framework, so It will be better if there is a code that I can copy and paste directly) It seems that the EnvironmentProbeAnchor can only get the light information around the device. But what should I do if I want get the light information around the ModelEntity so that I can apply the environment texture on it. It will be better if you can provide a code demo about how to use the new api. Thank you!

I am a newby of spatial computing and I am using ARKit and RealityKit to develop a visionPro app. I want to accomplish such a goal: If the user's hand touchs an object(an entity in RealityView) on the table, it will post a Window. But I do not know how to handle the event "the user's hand touchs the object". Should I use hand tracking feature to do some computing by myself? Or is there some api to use directly? Thank you!

Hello, We discovered that a bunch of our old animated models were no longer animated on iOS15 and onwards. After a few days of playing spot the difference between usda files I noticed that all the broken models had an xform called "Scene". Lo and behold, changing the name of that xform fixed the issue on all the models. Even lowercase "scene" makes the animations work again. Is "Scene" a reserved keyword or something? What other keywords do we need to avoid so we can create more robust USDZ files? I'm surprised this issue isn't more widespread considering Blender wraps models in a "Scene" node. At the drive link below you can find two animated cube USDZs. The only difference is the name of one of the xforms. The one with a "Scene" xform is not animated in quicklook (replicated on iPhone 13 iOS v15.2, iPhone 13 iOS v 18.3, and various devices on Browserstack including iPhone 16 iOS v18.3). https://drive.google.com/drive/folders/1dch1WaM9O6mbHy29S6NGWgnSHkZkPiBf?usp=sharing

I am developing an visionos app. I load a .usdz file as a Reality Entity(such as a cabbage). And I want such an effect: When I turn on a desk lamp in real world near the Entity, the surface of the Entity will correctly respond to the light in the real world. I want an effect like this: https://www.reddit.com/r/virtualreality/comments/1as01mm/shiny_disco_ball_reflecting_my_room/ I look up the api such as ImageBasedLightComponent andVirtualEnvironmentProbeComponent in RealityKit、EnvironmentLightEstimationProvider in ARKit，but I do not know how to code. Besides, it will be better if the shadow will also respond to the light correctly.

I am developing an app in VisionPro using RealityKit and ARKit. I want my RealityKit entity looks more realistic. So it is important to render its shadow based on light in real world. e.g. When I turn on the light in real world, the shadow of the entity will change. Can this effect be implemented in VisionPro?

I would like to know if there have been any updates that improved the image tracking speed. I submitted feedback a while ago, mentioning that the image tracking rate was only one frame per second on Vision Pro. Thank you very much. FB15688516 and FB16745373is feedback we previously submitted, but we have not received any response yet.

I have been referencing the Object Tracking Tutorial from WWDC 2024 on Vision OS, how Create ML is used to create a reference object, and we can track them in the ARSession. I am looking forward to building this feature on an AR app for iPhone, I am using iPhone 13 Pro Max. I have created couple of reference objects from the Create ML.

Hello, I am developing a visionOS application and am interested in obtaining detailed data of users’ hands through ARKit, including but not limited to Transform and rotation angle. I have reviewed Happy Beem, but it appears to only introduce the method of identifying the user’s specific gestures. Could you please advise on how to obtain the Transform and rotation angle of the user’s hand? Thank you.

When I get close to an Entity in RealityKit wearing VisionPro. The Entity will become transparent so I can distinguish it is rendering by VisionPro instead of an object in reality world. How can I make it not transparent when I get close to the Entity?

Hello When processing an ARPlaneAnchor geometry using its ARPlaneGeometry, the triangleIndices is an array of Int16. It's supposed to be an index buffer, which can only be uint16 or uint32 metal. What am I supposed to do with negative indices ? Negative indices are rare but do appear sometimes. Thank you

Hello, We are developing an AR app that requires the lidar meshes. Unfortunately the ARMeshAnchors that allows us to retrieve the mesh data are very unreliable. It happens very often that the ARSession removes all ARMeshAnchors and takes anywhere from 5s to 30s to reappear. The planes detection (ARPlaneAnchors) are still working fine and the camera tracking is also working normally. I tried a basic ARKit sample app, and got the same behaviour as our own app. Is this a known issue ? Anything we can do to mitigate the issue ? Thank you

I am trying the image tracking of ARKit on VisionPro, but there seems to be some problem when adding reference image. Here is my code: let images = ReferenceImage.loadReferenceImages(inGroupNamed: "photos") print("Images: \(images)") try await appState!.arkitSession.run([imageTracking]) It can successfully print those images, however sometimes it will print the error message like this: ARImageTrackingRemoteService: Adding reference image <ARReferenceImage: 0x3032399e0 name="chair" physicalSize=(0.070, 0.093)> failed. When this error message is printed, the corresponding image can not be tracked. I do not understand why this will happen, because sometimes the image can be successfully added, but other time not, even for the same image. It makes my app not stable. Besides, there are some other error messages, and I do not know whether it is related: ARPredictorRemoteService <0x1042154a0>: Query queue is not running. Execution of the command buffer was aborted due to an error during execution. Insufficient Permission (to submit GPU work from background) (00000006:kIOGPUCommandBufferCallbackErrorBackgroundExecutionNotPermitted)