Images are not appearing on tab bar on visionOS despite it shows up in perfect on iOS. I tried rendering mode API to make the original image visible, and it is working fine on iOS. But on visionOS the image stays white like masked by the tab bar default content color. Did anyone achieve solving this problem? I might be able to create my custom ornament to make it look like tab bar, but I think it‘s too much coding to do so.

In WWDC24, visionOS hand tracking has a new function that can make an entity track the hand faster (but at the expense of a certain degree of accuracy), and the video only explains how to implement ARKit, so please ask how to implement the anchorEntiy in the reality view.

I have a class with an Entity, on which I added a Spatial Audio component. Furthermore, I have a function, which uses the playAudio() method to start the Spatial Audio. During the first call of the function, everything is fine. If I call the again, the audio volume drops abruptly after a half second. It is very quiet. Approximately, I have following code: class VoiceOutputPlayer: NSObject, ObservableObject, AVAudioPlayerDelegate { private var speechEntity = Entity() func play() { Task{ let audioRessource = try await AudioFileResource(contentsOf: urlWave) self.speechEntity.playAudio(audioRessource) } } func initSpatialAudio() -> Entity { speechEntity.transform.translation.y = -0.37 speechEntity.transform.translation.z = 0.09 speechEntity.spatialAudio = SpatialAudioComponent(gain: Double.zero) speechEntity.spatialAudio?.reverbLevel = -2 speechEntity.spatialAudio?.directivity = .beam(focus: 0.9) speechEntity.orientation = .init(angle: .pi, axis: [0, 1, 0]) speechEntity.spatialAudio?.distanceAttenuation = .rolloff(factor: 1) return speechEntity } } Have visionOS 2.2 on the Apple Vision Pro and use Xcode 16.1

Screenshot: Specific error message: validateComputeFunctionArguments:1149: failed assertion `Compute Function(textureShader): Shader uses texture(texture[0]) as read-write, but hardware does not support read-write texture of this pixel format.' OS: visionOS 2.1 (22N5548c) simulator. Link: https://developer.apple.com/documentation/visionos/generating-procedural-textures-in-visionos

I just downloaded and opened the sample code for Creating 3D models as movable windows. (Link: https://developer.apple.com/documentation/visionos/creating-a-volumetric-window-in-visionos ). I opened the main view in the simulator (canvas), placed the volumentric window somewhere and then moved the camera a bit. Expected: I would expect volumentric windows to stay in place when I place them somewhere and then move around or look in a different direction. Actually: They don't stay in place. They slightly move with the camera. Question: Is this actual behavior expected? Is this just a thing with the simulator and will not happen with real hardware?

I am wondering, is it possible to somehow configure a 3D object to respond to the gaze of a person, like change colors of some parts of the 3D-Model where a person is looking, i.e. where a person's gaze lands on the surface of the 3D-model ? For example, if there is a 3D model of a Cool Dragon 🐉 in the physical space of a person, when seen through with the mixed reality view, of a VisionPro. Now, it would be really cool to change only the color, or make some specific parts of the dragon skin shimmer, but only in the areas where a person is looking. Is this possible ? Is it do-able with eye-tracking of VisionPro ? Any advice would be appreciated. 🤝 🤓 I am new to iOS and VisionOS development.

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.

In my VisionPro app, I'm facing a problem with loading USDZ models from a RealityKitBundle package, created using Reality Composer Pro. It was working fine until I added more models to the package. As I added more models with large textures in the project, the app started to show them with texturing problems. So, when I load the models from the RealityView using Entity(named:in), the mesh loads correctly, but all black, with no textures, as below: However, when I load the same USDZ directly from the main bundle, using ModelEntity(named:in), it loads fine. I know that large textures can cause memory issues, but when talking about one single model, I know that it's not enough to cause a memory overflow in the VisionPro. This USDZ model is about 40MB with something around 800MB of texture memory (from the RealityComposerPro Statistic tab). I've built experiences in VisionPro with much heavier models, and they do present the same texture issues, but only after there's more than 3 huge models enabled in the Reality scene. But that's not the case. The un-textured model appears right from the beginning, so it seems to me that's not a runtime issue in the device, but rather some issue in the packaging process from RealityComposerPro to XCode to the Device, am I correct? I'm also using a simple Mac Mini with M2 but only 8MB of RAM. Maybe that's the issue? As I still want to use RealityComposerPro to build more dev-friendly and interesting applications, I'd really appreciate some guidance here! Thanks in advance!

Can an app made with the Room Plan API be used on iPhones without LIDAR? If so, how much accuracy would be lost compared to iPhones with LIDAR? If not, is there an API similar to RoomPlan that works on iPhones without LiDAR?

I'm developing an app in which I need to render pictures and contain some models in a RealityView. I want to set up a camera, intercept virtual content through the camera, and save it as an image.

Hi, When closing a WindowGroup, I want to show a prompt, and only dismiss the window when the user confirms. How to do it? WindowGroup(id: "A") { ContentView() }

i have normal application flow and at one place i have to open immesive space for image seen 360 view but currently when ever i run application it start with immersive space my app normal flow is not start.What the isssue here?

We have a native iOS app that supports the upload and display of USDZ files. It has been working great since beta (late 2022) and live launch (late 2023) until now. But recently we had reports from some users on Max model phones (14 + 15 Pro Max) at least. When they launch tap and launch a 3D file the Quick Look player is triggered. So far so good. But for affected users the controls along the top of the player - X (close) AR | Object (toggle) and share button - are moving too high up the phone screen and getting stuck (untappable) behind the phone's top status bar (time, camera bug, connection, battery). This means that when they open a USDZ file in AR or 3D view they have to hard-close the app to get out of it again. This doesn't happen when they open a USDZ file from Files, Dropbox etc on their phone (which also uses the Quick Look player). The controls only move up and get stuck when launching a USDZ from within our app. I'm at a loss to figure out what might be causing this on some phones and not all others. And why only when opening a USDZ file from our app! So far we have replicated this issue on a single iphone 14 Pro Max and a 15Pro Max, both running iOS18+ We have tested on other 15Pro Max's on same OS, and Pros, normal iPhones, Minis and are not experiencing the issue. You would think that a USDZ file is a USDZ file and that your iPhone knows what to do with it and open it in the Quick Look player regardless of where you open the file from. Why would the navigation items be moving if you open the USDZ file from within our app, and why only for some select users? We will continue to troubleshoot and test but I wanted to throw this out to the community in case anyone had experienced this or if anyone had any theories that would expedite our testing. Your thoughts are most appeciated! Here is a video showing the expected (correct) behaviour: https://www.dropbox.com/scl/fi/0sp8s4opaf2m4gukkcbrk/How-opening-a-USDZ-should-behave_correct-behaviour.MP4?rlkey=tzzau9x91mwox66gsgguryhep&st=qiykmne9&dl=0 and a screenSHOT attached below of what is happening on one of the affected user's iPhone 15Pro Max.

How can I guide users to set their preferred language in visionOS? At this point, the behavior seems to be different from that of iOS.

This restriction causes me to be unable to use Metal to create images and simultaneously use Swift to add UI controls or RealityKit content (without using a window) in immersive mode.

I'm getting the following error in my swift build targeting VisionOS 2.0 : " 'defaultDisplay' is unavailable in visionOS " TLDR : how do I specify an initial window position in visionOS? The docs seem to be off? - see below. The docs say it is available, but it is not, or at least my XCODE (Version 16.0 ) is throwing errors on it : https://developer.apple.com/documentation/swiftui/scene/defaultwindowplacement(_:) I know apple is opinionated about window placement in visionOS, and maybe it will never be available, but the docs say it is in visionOS 2.0+ and it sure would be nice to be able to specify a default position toward the bottom of one's FOV, etc . Side-note -- the example code in that doc also has the issue that "Window" is not available in visionOS ( WindowGroup is ). example code -- barely modified from example code in doc : var body: some Scene { WindowGroup("MyLilWindow", id: "MyLilWindow") { TestView() } .windowResizability(.contentSize) .defaultWindowPlacement { content, context in let displayBounds = context.defaultDisplay.visibleRect let size = content.sizeThatFits(.unspecified) let position = CGPoint( x: displayBounds.midX - (size.width / 2), y: displayBounds.maxY - size.height - 140) return WindowPlacement(position) } }

When I try to open Immersive space I got error like below:- HALC_ProxyIOContext::IOWorkLoop: skipping cycle due to overload How to solve it any idea?

if I set UIApplicationPreferredDefaultSceneSessionRole to UISceneSessionRoleImmersiveSpaceApplication then my Immersive Space for image is working fine but when I try with UIWindowSceneSessionRoleApplication this option and try to open Immersive space on particular sub screen then its not showing image in immersive space(Immersive space not open). Any one have idea what the issue. <key>UIApplicationSceneManifest</key> <dict> <key>UIApplicationPreferredDefaultSceneSessionRole</key> <string>UIWindowSceneSessionRoleApplication</string> <key>UIApplicationSupportsMultipleScenes</key> <true/> <key>UISceneConfigurations</key> <dict> <key>UISceneSessionRoleImmersiveSpaceApplication</key> <array> <dict> <key>UISceneInitialImmersionStyle</key> <string>UIImmersionStyleFull</string> </dict> </array> </dict> </dict> My info.plist value as above

In RealityView, physical components are only applicable to certain solids. How can I simulate the physical effects of water and cloth? enity.components.set(PhysicalComponent)

Can we access a Vision pro's spatial persona in application's view without using SharePlay or group activity like any other 3d Avatar? I want to use that persona in app and without live rendering I just want to pass some voice commands like Avatar is speaking.