Greetings, I've been using RPScreenRecorder to record the screen, getting the buffer of it and copying it into a different one to use it, but recently, due to the last big iOS update, now each time I execute it, it crashes. Probably is because it's copying it while the first buffer is being overwritten. That's why I'm using a semaphore. But even with that, it still crashes. I don't know why it doesn't work. I tried to make a CIImage from the buffer to later copy it in a new buffer, but it keeps crashing. I tried to put some conditions so it's not nil, but nothing is working. I don't know how could it work. I even tried to create a new empty buffer and use it, and that works properly, so the problem is when I combine the RPScreenRecorder buffer and the copying of it. And the worst thing is that before that update, everything was working properly. Do you know any way that I could make it work?

I have an app which shows a screen using ObjectCaptureView and each time that the view appears and disappears the memory increases around 400-500Mb. After check the memory graph I found that I was related to the SwiftUI's view which is creating the ARKit view under the hood. To be sure that the ObjectCaptureView was which has the memory leak I only commented in the view the line to create the ObjectCaptureView keeping the rest of the logic to handle the session state, feedback, etc.

I have various .reality files published on a website as part of a learning product, which I deployed Feb. 2023 using the latest Reality Composer at the time. Users informed me that none of the .reality files will open on iOS 17, which I have confirmed. They still open fine on iOS 16. On iOS 17 the QuickLook viewer says "Object requires a newer version of iOS." What gives? Did Apple deprecated .reality, or are these designed only to work on one version of iOS only?

I want to convert this uikit code to swiftui but i have some problems and it doesn't work, please help me See LICENSE folder for this sample’s licensing information. Abstract: The sample app's main view controller. */ import UIKit import RealityKit import ARKit import Combine class ViewController: UIViewController, ARSessionDelegate { @IBOutlet var arView: ARView! var character: BodyTrackedEntity? let characterOffset: SIMD3<Float> = [-1.0, 0, 0] let characterAnchor = AnchorEntity() override func viewDidAppear(_ animated: Bool) { super.viewDidAppear(animated) arView.session.delegate = self guard ARBodyTrackingConfiguration.isSupported else { fatalError("This feature is only supported on devices with an A12 chip") } // 运行人体跟踪配置。 let configuration = ARBodyTrackingConfiguration() arView.session.run(configuration) arView.scene.addAnchor(characterAnchor) var cancellable: AnyCancellable? = nil cancellable = Entity.loadBodyTrackedAsync(named: "character/robot").sink( receiveCompletion: { completion in if case let .failure(error) = completion { print("Error: Unable to load model: \(error.localizedDescription)") } cancellable?.cancel() }, receiveValue: { (character: Entity) in if let character = character as? BodyTrackedEntity { character.scale = [1.0, 1.0, 1.0] self.character = character cancellable?.cancel() } else { print("Error: Unable to load model as BodyTrackedEntity") } }) } func session(_ session: ARSession, didUpdate anchors: [ARAnchor]) { for anchor in anchors { guard let bodyAnchor = anchor as? ARBodyAnchor else { continue } // 更新角色定位点位置的位置。 let bodyPosition = simd_make_float3(bodyAnchor.transform.columns.3) characterAnchor.position = bodyPosition + characterOffset characterAnchor.orientation = Transform(matrix: bodyAnchor.transform).rotation if let character = character, character.parent == nil { // 1. the body anchor was detected and // 2. the character was loaded. characterAnchor.addChild(character) } } } } Here's the code I wrote in SwiftUI import SwiftUI import RealityKit import ARKit import Combine struct ContentView : View { var body: some View { ARViewContainer().edgesIgnoringSafeArea(.all) } } struct ARViewContainer: UIViewRepresentable { var character: BodyTrackedEntity? let characterOffset: SIMD3<Float> = [-1.0, 0, 0] / let characterAnchor = AnchorEntity() func makeUIView(context: Context) -> ARView { let arView = ARView(frame: .zero) guard ARBodyTrackingConfiguration.isSupported else { fatalError("This feature is only supported on devices with an A12 chip") } let configuration = ARBodyTrackingConfiguration() arView.session.run(configuration) arView.scene.addAnchor(characterAnchor) var cancellable: AnyCancellable? = nil cancellable = Entity.loadBodyTrackedAsync(named: "character/robot").sink( receiveCompletion: { completion in if case let .failure(error) = completion { print("Error: Unable to load model: \(error.localizedDescription)") } cancellable?.cancel() }, receiveValue: { (character: Entity) in if let character = character as? BodyTrackedEntity { character.scale = [1.0, 1.0, 1.0] self.character = character cancellable?.cancel() } else { print("Error: Unable to load model as BodyTrackedEntity") } }) return arView } func updateUIView(_ uiView: ARView, context: Context) {} func session(_ session: ARSession, didUpdate anchors: [ARAnchor]) { for anchor in anchors { guard let bodyAnchor = anchor as? ARBodyAnchor else { continue } let bodyPosition = simd_make_float3(bodyAnchor.transform.columns.3) characterAnchor.position = bodyPosition + characterOffset characterAnchor.orientation = Transform(matrix: bodyAnchor.transform).rotation if let character = character, character.parent == nil { // 1. the body anchor was detected and // 2. the character was loaded. characterAnchor.addChild(character) } } } } #Preview { ContentView() }

在 Full 模式下， 我创建一球体 半径 10 ，给球添加 CollisionComponent 与 InputTargetComponent 我接着创建一个0.2 正方体 也添加了 上面的两组件 又添加。一个 attrach 的附件信息 代码如下 ` RealityView{content,attachments in let meshgenerate = MeshResource.generateSphere(radius: 10) let collisionShape = ShapeResource.generateSphere(radius: 10 ) var sp = ModelEntity(mesh: meshgenerate) sp.components.set(CollisionComponent(shapes: [collisionShape])) sp.components.set(InputTargetComponent()) sp.transform.scale *= .init(-1, 1, 1) sp.name = "sp" content.add(sp) let ont = ModelEntity(mesh: MeshResource.generateBox(size: 0.2) ) ont.components.set(CollisionComponent(shapes: [ShapeResource.generateBox(size: .init(x: 0.2, y: 0.2, z: 0.2))])) ont.components.set(InputTargetComponent()) ont.name = "ont" ont.position = .init(x: 0, y: 0, z: -2) content.add(ont) if let stack = attachments.entity(for: "aid") { stack.name = "sssssss" stack.setPosition(.init(x: 0, y: 1.5, z: -1), relativeTo: nil) // stack.generateCollisionShapes(recursive: false) //stack.components.set(InputTargetComponent()) content.add(stack) } } attachments: { let rostion = Rotation3D(angle: Angle2D(degrees: 30), axis: .x) Attachment(id: "aid") { Button { print("sss","Button") } label: { Text("New Color") .font(.extraLargeTitle) .padding(40) } .background(.yellow) } } .gesture(TapGesture().targetedToAnyEntity().onEnded({ value in print("sss" ,"TapGesture",value.entity.name) //openwind(id: "main") })) 只有球台可以出发 gesture 其他的 EntityModel 及 附加的信息 都无法触发 gestrue 我知道问题出在 其他实体放到了球内，同时因为球体有 InputTargetComponent 组件我如果想 不求出 InputTargetComponent 情况下 希望他的附件信息也能触发gesture，应该如何解决

Hi - I've searched all over the docs and might simply be missing something very big. Is raycasting available on front-facing True Depth camera like on the iPad Pro? I'm working on an application currently where I'm in ARFaceTrackingConfiguration and a simple raycast from the screen center is not yielding results. That same code in World configuration using the rear camera is producing results. My understanding, given the examples around bitmojis and face tracking, was that the front camera would have essentially the same depth data as the rear, just with less total distance available. Thanks for setting me straight! This is a very big deal for this particular project and I'm fearful I missed something in my pre-planning and investigation. Kane

Hi. I want to make iOS app that when use camera AR, it can show someplace around me have annotations. ARGeoAnchor something but I don't have any idea. Can anyone give me some keywords? I can use Mapkit to search but don't know how to map it in AR.

Is it possible to render a Safari-based webview in full immersive space, so an app can show web pages there?

Greetings! I have made use of Apple ARKit documentations to create a simple ARKit application which utilizes SceneKit (Tried Metal too) I am currently unsure of how to make use of SmoothedSceneDepth(SceneDepth) in general to acquire the DepthData from the DataMap acquired in the View. is there any particular method or way that I can access this data for displaying the depth. would be grateful with any inputs or suggestions. Thanks in advance

Hello everyone I'm using the detectPlane feature in ARKit Get back ARPlaneAnchor from ARSCNViewDelegate (func renderer(SCNSceneRenderer, didAdd: SCNNode, for: ARAnchor), func renderer(SCNSceneRenderer, didUpdate: SCNNode, for: ARAnchor)), func renderer(SCNSceneRenderer, didRemove: SCNNode, for: ARAnchor) Occasionally ARPlaneAnchors are cleared by the call func renderer(SCNSceneRenderer, didRemove: SCNNode, for: ARAnchor) from ARKit I think that after deleting ARPlanAnchor, ARkit will recreate an ARPlaneAnchor in that location. so is there any relationship between deleted ARPlanAnchor and newly created ARPlaneAnchor? (Does the identifier, name, .... information reflect that relationship?)

https://developer.apple.com/documentation/arkit/arkit_in_ios/content_anchors/visualizing_and_interacting_with_a_reconstructed_scene It says that fourth-generation iPad Pro running iPad OS 13.4 or later works because of the lidar. If iPhone 13 also has lidar then would it work too?

struct ARViewContainer: UIViewRepresentable { func makeUIView(context: Context) -> ARView { let arView = ARView(frame: .zero) arView.debugOptions = .showStatistics // Error: return arView } func updateUIView(_ uiView: ARView, context: Context) {} } -[MTLDebugRenderCommandEncoder validateCommonDrawErrors:]:5775: failed assertion `Draw Errors Validation Vertex Function(vsSdfFont): the offset into the buffer viewConstants that is bound at buffer index 4 must be a multiple of 256 but was set to 61840. '

Suppose I want to use the Vision Pro device in multiple rooms in my home. I have worn the device when I entered my home, checked some notifications on the device, closed the apps. With the device still on my head, I move to my bedroom. Now I want to open some other application without removing the headset and wearing it again. Is this possible?

I create a simple primitive shape and I want to add colors on each faces of the cube. I was thinking using Shape Graph, but I have no idea on how to specify each faces with a different color. Any lead or help would be great. This tech is new so help documentions is very low

Hi all. I can get disparity/depth data map from AVDepthData.depthDataMap and directly use it to generate a depth image. I found that under some situations, objects on the depth image cannot be clearly distinguished. When using disparity data, objects below 1 meter can't be clearly distinguished. When using depth data, objects larger than 1 meter can't be clearly distinguished. Does anyone know why this happens and how to fix it ?

Example Code： struct ContentView : View { @State private var isRemoveEntityModel = false var body: some View { ZStack(alignment: .bottom) { ARViewContainer(isRemoveEntityModel: $isRemoveEntityModel).edgesIgnoringSafeArea(.all) Button { isRemoveEntityModel = true } label: { Image(systemName: "trash") .font(.system(size: 35)) .foregroundStyle(.orange) } } } } struct ARViewContainer: UIViewRepresentable { @Binding var isRemoveEntityModel: Bool let arView = ARView(frame: .zero) func makeUIView(context: Context) -> ARView { let model = CustomEntityModel() model.transform.translation.y = 0.05 model.generateCollisionShapes(recursive: true) arView.installGestures(.all, for: model) // --> After executing this line of code, it allows the deletion of a custom EntityModel in ARView.scene, but the deinit {} method of the custom EntityModel is not executed. let anchor = AnchorEntity(.plane(.horizontal, classification: .any, minimumBounds: SIMD2(0.2, 0.2))) anchor.children.append(model) arView.scene.anchors.append(anchor) return arView } func updateUIView(_ uiView: ARView, context: Context) { if isRemoveEntityModel { let customEntityModel = uiView.scene.findEntity(named: "Box_EntityModel") uiView.gestureRecognizers?.removeAll() // --->After executing this line of code, ARView.scene can correctly delete the CustomEntityModel, and the deinit {} method of CustomEntityModel can also be executed properly. However, other CustomEntityModels in ARView.scene lose their Gestures as well. customEntityModel?.removeFromParent() } } } class CustomEntityModel: Entity, HasModel, HasAnchoring, HasCollision { required init() { super.init() let mesh = MeshResource.generateBox(size: 0.1) let material = SimpleMaterial(color: .gray, isMetallic: true) self.model = ModelComponent(mesh: mesh, materials: [material]) self.name = "Box_EntityModel" } deinit { print("CustomEntityModel_remove") } }

We scan the room using the RoomPlan API, and after the scan, we obtain objects with a white color along with shadows and shading. However, upon updating the color of these objects, we experience a loss of shadows and shading. RoomPlan scan After Update

After adding gestures to the EntityModel, when it is necessary to remove the EntityModel, if the method uiView.gestureRecognizers?.removeAll() is not executed, the instance in memory cannot be cleared. However, executing this method affects gestures for other EntityModels in the ARView. Does anyone have a better method to achieve this? Example Code： struct ContentView : View { @State private var isRemoveEntityModel = false var body: some View { ZStack(alignment: .bottom) { ARViewContainer(isRemoveEntityModel: $isRemoveEntityModel).edgesIgnoringSafeArea(.all) Button { isRemoveEntityModel = true } label: { Image(systemName: "trash") .font(.system(size: 35)) .foregroundStyle(.orange) } } } } ARViewContainer： struct ARViewContainer: UIViewRepresentable { @Binding var isRemoveEntityModel: Bool let arView = ARView(frame: .zero) func makeUIView(context: Context) -> ARView { let model = CustomEntityModel() model.transform.translation.y = 0.05 model.generateCollisionShapes(recursive: true) __**arView.installGestures(.all, for: model)**__ // here--> After executing this line of code, it allows the deletion of a custom EntityModel in ARView.scene, but the deinit {} method of the custom EntityModel is not executed. arView.installGestures(.all, for: model) let anchor = AnchorEntity(.plane(.horizontal, classification: .any, minimumBounds: SIMD2<Float>(0.2, 0.2))) anchor.children.append(model) arView.scene.anchors.append(anchor) return arView } func updateUIView(_ uiView: ARView, context: Context) { if isRemoveEntityModel { let customEntityModel = uiView.scene.findEntity(named: "Box_EntityModel") // --->After executing this line of code, ARView.scene can correctly delete the CustomEntityModel, and the deinit {} method of CustomEntityModel can also be executed properly. However, other CustomEntityModels in ARView.scene lose their Gestures as well. __** uiView.gestureRecognizers?.removeAll()**__ customEntityModel?.removeFromParent() } } } CustomEntityModel： class CustomEntityModel: Entity, HasModel, HasAnchoring, HasCollision { required init() { super.init() let mesh = MeshResource.generateBox(size: 0.1) let material = SimpleMaterial(color: .gray, isMetallic: true) self.model = ModelComponent(mesh: mesh, materials: [material]) self.name = "Box_EntityModel" } deinit { **print("CustomEntityModel_remove")** } }

Hello Guys, I am currently stuck on understanding how I can place a 3D Entity from a USDZ file or a Reality Composer Pro project in the middle of a table in a mixed ImmersiveSpace. When I use the AnchorEntity(.plane(.horizontal, classification: .table, minimumBounds: SIMD2<Float>(0.2, 0.2))) it just places it somewhere on the table and not in the middle and not in the orientation of the table so the edges are not aligned. Has anybody got a clue on how to to this? I would be very thankful for a response, Thanks

Is there a way to capture video on the front facing camera (ie the selfie camera) on iPhone while using face anchors, left/right eye transforms for AR?