With iOS26 unveiled, has anyone noticed or found any changes related to RoomPlan?
I can't find anything myself, which is disappointing.
Has anyone found any improvements or changes?
ARKit
RSS for tagIntegrate iOS device camera and motion features to produce augmented reality experiences in your app or game using ARKit.
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A few users have recently reported no longer being able to capture point clouds using our app, specifically on iPhone 15 Pro devices. We recently found an in-house device that exhibits this behavior and found that the confidenceMap contains only low confidence values, regardless of the environment being captured. Our app uses a higher confidence threshold; setting the threshold to a lower value produces noisy results as expected, so that is a non-viable option.
Other LiDAR based apps have been tested with this device and the results are the same. No points, or noisy point clouds in apps that allow a lower confidence threshold setting. On devices that exhibit this behavior the "Displaying a point cloud using scene depth" Apple sample app can be used to visualize the issue.
First reports of this new behavior occurred as early as iOS 18.4.
Looking for recommendations on which team(s) at Apple to reach out to with these findings since the behavior manifests on only a small sample of devices.
Hello everyone, I'm a new developer and I'm still learning the foundations of Swift and SwiftUI while building my first app. Today I wanted to ask you how to implement AR Quixck Views inside my app. I wanna be able to dynamically preview AR objects in a dedicated view, however, I don't seem to have understood where and how to locate AR objects inside my project. I tried including them in the Assets folder of the project, or in the Recources folder, or within the main folder of my project alongside the MyAppApp.swift file. None of the methods I used seemed have worked in that none of the objects was ever located. I made sure to specify the path to the files every time, but somehow the location isn't recognized. I also tried giving no path so that the app would search for the files in their default location (which I apparently haven't grasped yet), but still my attempt failed. I don't have the code sample on me at the moment, but I will write a followup comment on this post to show you what I wrote in case anyone was interested in debugging my code. Meanwhile, if anyone would be so kind to point me at the support article or to comment below the sample code they used in their app, I would very much appreciate it, so that I can start debugging. Thank you for reading this, I appreciate you.
I work on motion capture systems for VTubing. I can't seem to find any information on gaining access to the Face Tracking features on iOS while developing for Vision OS.
I would love to bring VStreamer Live to Vision OS
Topic:
Spatial Computing
SubTopic:
ARKit
I need to loop my videoMaterial and I don't know how to make it happen in my code.
I have included an image of my videoMaterial code.
Any help making this happen with be greatly appreciated.
Thank you,
Christopher
Topic:
Spatial Computing
SubTopic:
ARKit
Hello!
I'm a developer of Ping Pong for Apple Vision Pro (Ping Pong Club). I'm experiencing an issues with collisions between ball and paddle. Sometimes the ball just unexpectedly flying away like it has been hit to hard.
I believe this is happening because hand anchors are jittering (ping pong paddle has hand anchor component) and at the time of collision unnecessary micro motion produced.
I've build a demo app to demonstrate that: https://drive.google.com/file/d/1gBh-DsXuVZdvDrrD7gJcbJ_hg7tvVKUV/view?usp=share_link
Video: https://drive.google.com/file/d/1poPbsJdBz87edqrWIfBt1eSVzfm5CTek/view?usp=sharing
Is there a way to add some threshold to prevent jittering?
Topic:
Spatial Computing
SubTopic:
ARKit
I have two RealityView: ParentView and When click the button in ParentView, ChildView will be shown as full screen cover, but the camera feed in ChildView will not be shown, only black screen.
If I show ChildView directly, it works with camera feed.
Please help me on this issue? Thanks.
import RealityKit
import SwiftUI
struct ParentView: View{
@State private var showIt = false
var body: some View{
ZStack{
RealityView{content in
content.camera = .virtual
let box = ModelEntity(mesh: MeshResource.generateSphere(radius: 0.2),materials: [createSimpleMaterial(color: .red)])
content.add(box)
}
Button("Click here"){
showIt = true
}
}
.fullScreenCover(isPresented: $showIt){
ChildView()
.overlay(
Button("Close"){
showIt = false
}.padding(20),
alignment: .bottomLeading
)
}
.ignoresSafeArea(.all)
}
}
import ARKit
import RealityKit
import SwiftUI
struct ChildView: View{
var body: some View{
RealityView{content in
content.camera = .spatialTracking
}
}
}
In several visionOS apps, we readjust our scenes to the user's eye level (their heads). But, we have encountered issues whereby the WorldTrackingProvider returns bad/incorrect positions for the first x number of frames.
See below code which you can copy paste in any Immersive Space. Relaunch the space and observe the numberOfBadWorldInfos value is inconsistent.
a. what is the most reliable way to get the devices's position?
b. is this indeed a bug?
c. are we using worldInfo improperly?
d. as a workaround, in our apps we set to 10 the number of frames to let pass before using worldInfo, should we set our threshold differently?
import ARKit
import Combine
import OSLog
import SwiftUI
import RealityKit
import RealityKitContent
let SUBSYSTEM = Bundle.main.bundleIdentifier!
struct ImmersiveView: View {
let logger = Logger(subsystem: SUBSYSTEM, category: "ImmersiveView")
let session = ARKitSession()
let worldInfo = WorldTrackingProvider()
@State var sceneUpdateSubscription: EventSubscription? = nil
@State var deviceTransform: simd_float4x4? = nil
@State var numberOfBadWorldInfos = 0
@State var isBadWorldInfoLoged = false
var body: some View {
RealityView { content in
try? await session.run([worldInfo])
sceneUpdateSubscription = content.subscribe(to: SceneEvents.Update.self) { event in
guard let pose = worldInfo.queryDeviceAnchor(atTimestamp: CACurrentMediaTime()) else {
return
}
// `worldInfo` does not return correct values for the first few frames (exact number of frames is unknown)
// - known SO: https://stackoverflow.com/questions/78396187/how-to-determine-the-first-reliable-position-of-the-apple-vision-pro-device
deviceTransform = pose.originFromAnchorTransform
if deviceTransform!.columns.3.y < 1.6 {
numberOfBadWorldInfos += 1
logger.warning("\(#function) \(#line) deviceTransform.columns.3.y \(deviceTransform!.columns.3.y), numberOfBadWorldInfos \(numberOfBadWorldInfos)")
} else {
if !isBadWorldInfoLoged {
logger.info("\(#function) \(#line) deviceTransform.columns.3.y \(deviceTransform!.columns.3.y), numberOfBadWorldInfos \(numberOfBadWorldInfos)")
}
isBadWorldInfoLoged = true // stop logging.
}
}
}
}
}
I am allowing users to go through and capture different rooms, and add a custom label to that room. Is there a way to store data about this in the captured room so that it persists into the final merge? As it is now, My users mark all their merges with custom labels, but after merging there is no way to remember which room is which in the merging process so they have to go through and manually add the labels back. For larger floor plans this is not ideal.
Hi Apple Team,
I’m working on a human portrait scanning application using PhotogrammetrySession, and I’ve been very impressed by the results. Thank you for building such a powerful and accessible photogrammetry solution into macOS!
I do, however, have a question regarding mesh detail limitations on different Mac hardware configurations.
When using PhotogrammetrySession.Request.Detail.custom and trying to set maximumPolygonCount = 1000000, I see the following log message:
Clamped max poly count: 1000000 to device limit. 250000 is used.
This is on an M1 Max with 32 GB RAM.
I’m aware that PhotogrammetrySession.limits can report values like maximumInputImageDimension and maximumNumberOfInputImages, but I haven’t found documentation on how the maximumPolygonCount is determined, and what hardware specs influence it.
Is it tied more to:
• GPU performance (e.g. neural/graphics cores)?
• CPU architecture?
• Memory size or bandwidth?
• Or is it fixed per SoC generation?
I’d love to understand what kind of hardware upgrades (e.g. moving to M4 Pro or increasing RAM) could allow me to increase mesh complexity and generate more detailed models.
Any insights would be greatly appreciated—and if this is covered in upcoming WWDC sessions or documentation, I’d be happy to tune in.
Thanks in advance!
KitCheng
Hi Apple Team and Developers,
First of all, I’d like to express my appreciation for the incredible results achieved using PhotogrammetrySession. I’ve been developing a portrait scanning app using Object Capture, and in many tests—especially with human models—I’ve found the reconstructed body surfaces are remarkably smooth and clean, often outperforming tools like Metashape and RealityCapture in terms of aesthetic results.
However, I’ve encountered some challenges when working with complex areas like long hair overlapping the face. For instance, with female models where strands of hair partially occlude the face, the resulting mesh tends to merge the hair and facial geometry. This leads to distorted or “melted” facial features, likely due to ambiguity in the geometry estimation phase.
Feature Suggestion:
Would it be possible to allow developers to supply two versions of the input images:
• One version (original) for texture generation
• A pre-processed version (e.g., contrast-enhanced or CLAHE filtered) to guide mesh reconstruction only
This would give us the flexibility to enhance edge features or shadow detail without affecting the final texture appearance. In other photogrammetry pipelines, applying image enhancement selectively before dense reconstruction improves geometry quality in low-contrast areas.
Question:
Is there any plan to support this kind of two-path workflow in future versions of PhotogrammetrySession? Or perhaps expose more intermediate stages or tunable parameters to developers?
Also, any hints on what we can expect from WWDC 2025 regarding improvements to Object Capture or related vision/3D technologies?
Thanks again for this powerful API. Looking forward to hearing insights from the team and other developers.
Warm regards,
KitCheng
I'm developing an AR application for the iPad pro where the primary purpose is to overlay 3D design data on top of production parts. For alignment, we are using Vuforia (model targets) which work really well locally. The further the device is moved from the point of original alignment, we are seeing quite a bit of overlay error (drift?).
My primary questions are:
Are there any best practices to stabilize frame-to-frame tracking when using model targets? We are noticing drift as soon as the device starts moving (the drift appears to occur specifically in the direction the device is moving). After about 15 feet of movement, we are observing about 3-6" of overlay error
These use cases can be over 100 feet long. In order to reset drift, we understand we'll need multiple alignment points (model targets) along the way. Is there a standard/best practice for this? Ex: have a new alignment point every x-feet?
We are using plane anchors to set our alignment. Typically we attach it to the nearest plane; however, the anchor point can be very far away (the origin of the model, which often is not near where the virtual content is). Could this be the issue? The anchor is far from the plane that we attach it too. Would moving the anchor closer to the plane we attach it too improve stability? After a few steps, the plane we originally attach too will be out of FoV anyway.
Thanks in advance!
Topic:
Spatial Computing
SubTopic:
ARKit
I am trying to create an object in immersive space that is partially transparent (~50% opacity). I have implemented this in a few different ways including creating a model entity and setting its opacity component to 0.5, and creating a custom material with blending set to a transparent opacity of 0.5. These both work partially, as they behaved as intended for many cases, but seemingly randomly would act like occlusion material and block any other immersive content behind them, showing the real world instead.
Some notes: I am using RealityKit to render the semi-transparent object and an opaque object that is behind the semi-transparent object. I am using VisionOS 2.1, and am updating the location of the semi-transparent object often. Both objects are ModelEntities.
I would appreciate any guidance on how to implement this. Please let me know if there are any other questions.
Here is the sample project from apple of Object Tracking.
https://developer.apple.com/documentation/visionOS/exploring_object_tracking_with_arkit
can we improve it tracking accuracy and tracking when object is moving little faster, so the 3d object that draw still follow it and make it more accurate.
Hi, I have been using RealityRenderer to render scenes in MacOS as spatial videos and view it in Vision Pro and it is awesome. I understand that it uses PerspectiveCamera to render. I wanted to know what is the default FOV for this camera and how much can we push it? I want to ideally render a scene with 180 degrees of fov. Thanks
I am experience problem with three iPhone 13 Pro.
They are reporting the lowest quality for all points in the depthmap from the Lidar sensor.
The readings I get are unusable.
If it was just one phone I would consider it a faulty sensor, but in this case it is three phones that gives the same result.
I have other iPhone 13 Pro that works as expected.
Have any else experienced a similar behavior?
I am using iOS 18.4.1
https://developer.apple.com/documentation/avfoundation/avdepthdata/depthdataquality
Topic:
Spatial Computing
SubTopic:
ARKit
I'm working on an iOS app using ARKit and RealityKit where I scan QR codes and want to place 3D models at the exact position of the QR code in the real world.
Is it possible to accurately place a 3D model at the exact position of a QR code in AR using ARKit and RealityKit? Specifically, I want the model to appear at the precise location where the QR code is detected, rather than just somewhere in the AR space.
If this is possible, could you point me in the right direction or recommend the best approach to achieve this?
Thank you for your help!
Hello,
I'm developing a LiDAR-based scanning app using Swift, where I can successfully perform scans and export the results as .obj files. My goal is to have the scan's colors and textures closely resemble real-world visuals as captured by the camera, similar to the results shown in this repository.
In the referenced repository, the result is demonstrated with a single screenshot, but I want to display the textures and colors throughout the entire scanning process, not just at the final result. To clarify, I'm not focused on scanning individual objects but rather larger environments like rooms, houses, or outdoor spaces such as streets.
Here’s what I’m aiming for:
Realistic colors and textures that match what the camera sees during the scan.
Continuous texture rendering during the scanning process, not just in the final exported model.
Could anyone share guidance, sample code, or point me to relevant documentation to achieve this? Any help would be greatly appreciated!
Thank you!
I’ve been having some issues removing anchors. I can add anchors with no issue. They will be there the next time I run the scene. I can also get updates when ARKit sends them. I can remove anchors, but not all the time. The method I’m using is to call removeAnchor() on the data provider.
worldTracking.removeAnchor(forID: uuid)
// Yes, I have also tried `removeAnchor(_ worldAnchor: WorldAnchor)`
This works if there are more than one anchor in a scene. When I’m down to one remaining anchor, I can remove it. It seems to succeed (does not raise an error) but the next time I run the scene the removed anchor is back. This only happens when there is only one remaining anchor.
do {
// This always run, but it doesn't seem to "save" the removal when there is only one anchor left.
try await worldTracking.removeAnchor(forID: uuid)
} catch {
// I have never seen this block fire!
print("Failed to remove world anchor \(uuid) with error: \(error).")
}
I posted a video on my website if you want to see it happening.
https://stepinto.vision/labs/lab-051-issues-with-world-tracking/
Here is the full code. Can you see if I’m doing something wrong? Is this a bug?
struct Lab051: View {
@State var session = ARKitSession()
@State var worldTracking = WorldTrackingProvider()
@State var worldAnchorEntities: [UUID: Entity] = [:]
@State var placement = Entity()
@State var subject : ModelEntity = {
let subject = ModelEntity(
mesh: .generateSphere(radius: 0.06),
materials: [SimpleMaterial(color: .stepRed, isMetallic: false)])
subject.setPosition([0, 0, 0], relativeTo: nil)
let collision = CollisionComponent(shapes: [.generateSphere(radius: 0.06)])
let input = InputTargetComponent()
subject.components.set([collision, input])
return subject
}()
var body: some View {
RealityView { content in
guard let scene = try? await Entity(named: "WorldTracking", in: realityKitContentBundle) else { return }
content.add(scene)
if let placementEntity = scene.findEntity(named: "PlacementPreview") {
placement = placementEntity
}
} update: { content in
for (_, entity) in worldAnchorEntities {
if !content.entities.contains(entity) {
content.add(entity)
}
}
}
.modifier(DragGestureImproved())
.gesture(tapGesture)
.task {
try! await setupAndRunWorldTracking()
}
}
var tapGesture: some Gesture {
TapGesture()
.targetedToAnyEntity()
.onEnded { value in
if value.entity.name == "PlacementPreview" {
// If we tapped the placement preview cube, create an anchor
Task {
let anchor = WorldAnchor(originFromAnchorTransform: value.entity.transformMatrix(relativeTo: nil))
try await worldTracking.addAnchor(anchor)
}
} else {
Task {
// Get the UUID we stored on the entity
let uuid = UUID(uuidString: value.entity.name) ?? UUID()
do {
try await worldTracking.removeAnchor(forID: uuid)
} catch {
print("Failed to remove world anchor \(uuid) with error: \(error).")
}
}
}
}
}
func setupAndRunWorldTracking() async throws {
if WorldTrackingProvider.isSupported {
do {
try await session.run([worldTracking])
for await update in worldTracking.anchorUpdates {
switch update.event {
case .added:
let subjectClone = subject.clone(recursive: true)
subjectClone.isEnabled = true
subjectClone.name = update.anchor.id.uuidString
subjectClone.transform = Transform(matrix: update.anchor.originFromAnchorTransform)
worldAnchorEntities[update.anchor.id] = subjectClone
print("🟢 Anchor added \(update.anchor.id)")
case .updated:
guard let entity = worldAnchorEntities[update.anchor.id] else {
print("No entity found to update for anchor \(update.anchor.id)")
return
}
entity.transform = Transform(matrix: update.anchor.originFromAnchorTransform)
print("🔵 Anchor updated \(update.anchor.id)")
case .removed:
worldAnchorEntities[update.anchor.id]?.removeFromParent()
worldAnchorEntities.removeValue(forKey: update.anchor.id)
print("🔴 Anchor removed \(update.anchor.id)")
if let remainingAnchors = await worldTracking.allAnchors {
print("Remaining Anchors: \(remainingAnchors.count)")
}
}
}
} catch {
print("ARKit session error \(error)")
}
}
}
}
Hi, I'm playing now with hand tracking. I want to get position of hand inside a system update function. I was not sure if transform I'm getting from hand attached AnchorEntity (with trackingMode: .predicted) would give same results as handAnchors(at:) from hand tracking provider, so I started to read them both and compare. For handAnchors i tried using context.scene.timebase.sourceTimebase!.sourceClock!.time.seconds and CACurrentMediaTime() as timestamp source. They seem to use exactly same clock, so that doesn't matter, but:
for some reason update handler is always called twice with same context.deltaTime, but first time the query finds 0 entities, second time it finds them all. The query is the standard EntityQuery(where: .has(MyComponent.self)) and in update (matching: Self.query, updatingSystemWhen: .rendering). Here's part of logs:
System update called, entity count: 0, dt: 0.01000458374619484, absTime: 4654.222593541
System update called, entity count: 11, dt: 0.01000458374619484, absTime: 4654.22262525
System update called, entity count: 0, dt: 0.009999999776482582, absTime: 4654.249390875
System update called, entity count: 11, dt: 0.009999999776482582, absTime: 4654.249425
accounting for the double update calling I started to calculate time delta of absolute time between calls and they're most of the time much bigger, or much smaller than advertised by system's context.deltaTime, only sometimes they kind of match, for example:
system: (dt: 0.01000458374619484)
scene : (dt: 0.021419291667371) (absTime: 4654.222628125001)
and the very next call
system: (dt: 0.010009 166784584522)
scene : (dt: 0.0013097083328830195) (absTime: 4654.223937833334)
but sometimes
system: (dt: 0.009999999776482582)
scene : (dt: 0.009 112249999816413) (absTime: 4654.351299 166668)
Shouldn't those be more or less equal, or am I missing something?
In the end it seems that getting hand position from AnchorEntity and with handAnchors(at:) gives kind of same results, but at different time points, so I'd love to understand what's the correct way to use them and why time flows differently :).
--Edit--
P.S. Had to put spaces everywhere in logs between "9" and "1", otherwise post was blocked due to "sensitive content" :D