I'm developing an augmented images app using ARKit. The images themselves are sourced online. The app is mostly done and working fine. However, I download the images the app will be tracking every time the app starts up. I'd like to avoid this by perhaps downloading the images and storing them to the device. My concern is that as the number of images grow, the app would download too many images to the device. I'd like some thoughts on how to best approach this. For example, should I download and store some of the images in CoreData, or perhaps not store them at all?

I want to use 3dmax software to generate two panoramic renderings, one for the left eye and the other for the right eye, so that I can get a realistic sense of space. At the technical implementation level, are there relevant APIs that can control the left and right eyes to see different content?

Hello, I am trying to create new outfits based on ar kits body tracking skeleton example - the controlled robot. Is it just me or is this skeleton super annoying to work with? The bones all stand out like thorns and don't follow along the actual limb, which makes it impossible to automatically weight paint new meshes to the skeleton. Changing the bones is also not possible, since this will result in a distorted body tracking. I am an experienced modeller but I have never seen such a crazy skeleton. Even simple meshes are a pain in the bud to pair with these bones. You basically have to weight paint everything manually. Or am I missing something?

We have an issue with Apple Roomplan - on regular bases the objects which are captured are not positioned corretly in the model which happens 50% of the cases we have - that makes the feature almost useless. Is there any idea how to solve that problem?

I was planning to experiment with ARKit for Vision OS to create a widget app that places small room persistent objects in the user room, which the user can anchor anywhere they like. Trouble is, I don’t find it an amazing experience the fact that this needs to be used in a full space, as it’s limiting. those types of widgets would make sense only when one want to glance at them quickly, not as part of the main task a user is performing. Is there any way the room positional anchors can be stored and reestablished any time somebody opens an app in the shared space, rather than in the full one?

I am trying to attach a button to user's left hand. the position is tracked. the button stays above the user's left hand. but it doesn't face the user. or it doesn't even face where the wrist is pointing. this is the main code snippet: if (model.editWindowAdded) { let originalMatrix = model.originFromWristLeft let theattachment = attachments.entity(for: "sample")! entityDummy.addChild(theattachment) let testrotvalue = simd_quatf(real: 0.9906431, imag: SIMD3<Float>(-0.028681312, entityDummy.orientation.imag.y, 0.025926698)) entityDummy.orientation = testrotvalue theattachment.position = [0, 0.1, 0] var timer = Timer.scheduledTimer(withTimeInterval: 0.1, repeats: true) {_ in let originalMatrix = model.originFromWristLeft print(originalMatrix.columns.0.y) let testrotvalue = simd_quatf(real: 0.9906431, imag: SIMD3<Float>(-0.028681312,0.1, 0.025926698)) entityDummy.orientation = testrotvalue } }

I want to align and fuse the video streams from the main camera and my external camera in visionOS 2.0, ensuring that the fused image remains directly in front of the field of view as the head moves, similar to a normal passthrough mode video image. I have already achieved and verified the static image alignment and fusion on the Vision Pro using screenshots from the main camera and the external video stream. However, I don't know how to perform real-time fusion with the main camera images. Could you please advise on how I can achieve this?

In RealityKit using visionOS, I scan the room and use the resulting mesh to create occlusion and physical boundaries. That works well and iI can place cubes (with physics on) onto that too. However, I also want to update the mesh with versions from new scans and that make all my cubes jump. Is there a way to prevent this? I get that the inaccuracies will produce slightly different mesh and I don’t want to anchor the objects so my guess is I need to somehow determine a fixed floor height and alter the scanned meshes so they adhere that fixed height. Any thoughts or ideas appreciated /Andreas

Hi, My goal is to obtain the device location (6 DoF) of the Apple Vision Pro and I find a function that might satisfy my need: final func queryDeviceAnchor(atTimestamp timestamp: TimeInterval) -> DeviceAnchor? which returns a device anchor (containing the position and orientation of the headset). However, I couldn't find any document specify where does the device anchor exactly locate on the headset. Does it locate at the midpoint between the user's eyes? Does it locate at the centroid of the six world facing tracking cameras? It would be really helpful if someone can provide a local transformation matrix (similar to a camera extrinsic) from a visible rigid component (say the digital crown, top button, or the laser scanner) to the device anchor. Thanks.

Hello, Recently, I’ve been studying point cloud development. As a beginner in this field, I’m seeking some guidance on how to approach this. I want to obtain point cloud data and be able to display and view it as shown in the picture below. I used the "Displaying a Point Cloud Using Scene Depth" code as my starting point and then attempted to add a button to save the data in the Renderer private variable particlesBuffer: MetalBuffer. The particlesBuffer array contains data structured as follows: struct ParticleUniforms { simd_float3 position; simd_float3 color; float confidence; }; My understanding is that this data represents the point cloud. If I am wrong, please let me know. Next, I wrote my own code to display this data using SceneKit by creating small spheres based on the position and color values. However, in practice, this method only allows me to display about 30,000 spheres before it becomes very laggy. I believe my implementation might be incorrect because I noticed that using the 3D scanner App to display point clouds achieves a much better performance. Could you please advise me on how to achieve an effect like the one shown in the image below? Thank you.

Is it possible to create a roomplan with the texture of a room plan's wall - or some way to combine ObjectCapture results with RoomPlan results?

Is it possible to both capture the images required for ObjectCapture and the scan data required to create an ARObjectAnchor (and be able to align the two to each other)? Perhaps an extension of this WWDC 2020 example that also integrates usdz object capture (instead of just import external one)? https://developer.apple.com/documentation/arkit/arkit_in_ios/content_anchors/scanning_and_detecting_3d_objects?changes=_2

Hello there, I am currently experimenting with the body tracking sample from the AR Foundation Example Project. It works fine, but when there are multiple persons in front of the camera, the mesh jumps randomly from tracked skeleton to tracked skeleton. So I am looking for a way to define a specific area in front of the camera or to implement some other marker (maybe a body pose) to start and stop tracking. I am guessing Pose-Tracking could work. Whenever a body stands in a T-Pose, the Mesh gets applied to that body and then the script stops looking for new skeletons until the original skeleton is lost. Does somebody know which code to look at to achieve this?

We are building an app that uses ARKit occasionally, but not always. We would like to test the non-ARKit parts in the simulator, since it offers more debugging features (e.g. SwiftUI previews or the Thread Sanitizer). However, we can't even build the app for the simulator, since the simulator SDK does not know about certain classes (e.g. "AnchorEntity"). This also means that none of the SwiftUI previews work, even if the views are not using ARKit. What is the best approach to test such an app in the simulator, without using any ARKit features?

I am using ArKit to create an augmented reality application in Unity. Following the addition of an object reference object Because it tracks the object in front of it slowly and inaccurately, the application does not update the screen quickly. How can I track objects more quickly?

I'm working on training an object tracking model in CreateML for visionOS that has fan blades on it and looking to try to train while ignoring a section of the geometry. When I train currently, it can detect the object if the fan blades are in the same orientation as when scanned but if they move it struggles. I see there is an "objects to avoid" data source that can be added but upon reading the description, I don't think it does what I'm needing but I could be wrong. Is there anyway to have the training ignore a part of the geometry that has a significant effect on the silhouette of the object?

I'm seeking insight on why the new VisionOS Barcode Scanning API is categorized as an Enterprise API and restricted only for proprietary and in-house apps. I understand Apple's focus on privacy and I can see how this restriction could make sense for other Enterprise APIs like main camera access and passthrough screen capture. Why is barcode scanning restricted from open apps? What makes barcode scanning more of a risk to privacy versus the unrestricted APIs for object tracking, image tracking, or hand tracking?

FYI. The source code of the FindSurface demo app for Apple Vision Pro (visionOS) is available now. The Swift package of FindSurface™ library is required to build the source code into the demo app. https://github.com/CurvSurf/FindSurface-visionOS After starting the app, the floating panels (below) will appear on your right side, and you will see wireframe meshes that approximately describe your environments. Performing a spatial tap (pinching with your thumb and index finger) with staring at a location on the meshes will invoke FindSurface, with an indicator (blue disk) appearing on the surface you've gazed. Voice commands: “Tap” – Spatial tap (gazing & pinching). Invoke FindSurface. “Tap plane” – Plane selection. “Tap sphere” or “Tap ball” – Sphere selection. “Tap cylinder” – Cylinder selection. “Tap cone” – Cone selection. “Tap torus” or “Tap donut” – Torus selection. “Tap accuracy” or “Tap measurement accuracy” – Accuracy selection. “Tap mean distance”, “Tap average distance”, or “Tap distance” – Avg. Distance selection. “Tap touch radius” or “Tap seed radius” – Touch Radius selection. “Tap Inlier” – “Show inlier points” toggle. “Tap outline” – “Show geometry outline” toggle. “Tap clear” – “Clear Scene” click.

I have indoor map and I want to draw path between two route location ex. from A to B I want to draw ARKit based Arrow path in ios Application. Currently I am using ARAnchor to achieve this but challenges is if A to B is 10 meter and I am adding Nodes on each one meter so instead of 10 different nodes i am getting single Arrow nodes showing all 10 in it. I am using below code. // Below Code from where I am calling addArpath function if let lat1 = mCurrentPosition?.latitude, let long1 = mCurrentPosition?.longitude { let latEnd = steplocation.latitude let longEnd = steplocation.longitude // if let lastLat = arrpath.last?.latitude,let lastLong = arrpath.last?.longitude,let lastAltitude = arrpath.last?.altitude{ let userLocation = CLLocation(latitude: lat1, longitude: long1) let endLocation = CLLocation(coordinate: CLLocationCoordinate2DMake(CLLocationDegrees(latEnd), CLLocationDegrees(longEnd)), altitude: CLLocationDistance(steplocation.altitude), horizontalAccuracy: CLLocationAccuracy(5), verticalAccuracy: CLLocationAccuracy(0), course: CLLocationDirection(-1), speed: CLLocationSpeed(5), timestamp: Date()) let heading = getHeadingForDirectionFromCoordinate(from: userLocation, to: endLocation) let lon1 = degreesToRadians(long1) //DegreesToRadians(long1) let lon2 = degreesToRadians(longEnd); //DegreesToRadians(longEnd); let lat2 = degreesToRadians(latEnd); let dLon = lon2 - lon1 let y = sin(dLon) * cos(lat2); yVal = yVal + y // let distanceToendpoint = calculateDistance(lat: endLocation.coordinate.latitude, long: endLocation.coordinate.longitude) let distvalue = Int(distance) + Int(pathlength) distance += CGFloat(distvalue) for i in stride(from: 0, to: distance, by:1) { print("current loop iteration is:" ,i) let headingValue = heading - self.heading zValue = zValue + headingValue distanceVal = CGFloat(i) + distanceVal zGlobal = zValue // Calling addARPathtoLocation addARPathtoLocation(stepLocation:endLocation,zvalue: zValue, yvalue: yVal, distance:Float(i), direction: manuoverType) } // } } // MARK: - ARSessionDelegate func renderer(_ renderer: SCNSceneRenderer, didAdd node: SCNNode, for anchor: ARAnchor) { guard !(anchor is ARPlaneAnchor) else { return } let sphereNode = generateArrowNodes(anchor: anchor) DispatchQueue.main.async { node.addChildNode(sphereNode) } } //create ARAnchor to add to nodes func generateArrowNodes(anchor: ARAnchor) -> SCNNode { let imageMaterial = SCNMaterial() imageMaterial.isDoubleSided = true imageMaterial.diffuse.contents = UIImage(named: "blueArrow") let plane = SCNPlane(width:0.5, height:0.5) plane.materials = [imageMaterial] plane.firstMaterial?.isDoubleSided = true let blueNode = SCNNode(geometry: plane) blueNode.name = "blueNode" blueNode.position = SCNVector3(x:Float(zGlobal), y:0, z:Float(distanceVal)) blueNode.eulerAngles.x = -.pi / 2 blueNode.eulerAngles.y -= Float(CGFloat(CGFloat.pi/4*6)) return blueNode } func addARPathtoLocation(stepLocation: CLLocation, zvalue: CGFloat, yvalue: CGFloat, distance:Float, direction:VMEManeuverType) { // give you the depth of anything ARKit has detected guard let query = sceneView.raycastQuery(from: sceneView.center , allowing: .estimatedPlane, alignment: .any) else { return } let results = sceneView.session.raycast(query) guard let hitResult = results.first else { print("No surface found") return } // Add ARAnchor to Scene let anchor = ARAnchor(transform: hitResult.worldTransform) sceneView.session.add(anchor: anchor) } func radiansToDegrees(_ radians: Double) -> Double { return (radians) * (180.0 / Double.pi) } func degreesToRadians(_ degrees: Double) -> Double { return (degrees) * (Double.pi / 180.0) } func getHeadingForDirectionFromCoordinate(from: CLLocation, to: CLLocation) -> Double { let fLat = degreesToRadians(from.coordinate.latitude) let fLng = degreesToRadians(from.coordinate.longitude) let tLat = degreesToRadians(to.coordinate.latitude) let tLng = degreesToRadians(to.coordinate.longitude) let deltaL = tLng - fLng let x = sin(deltaL) * cos(tLng) //cos(tLat) * sin(deltaL) let y = cos(fLat) * sin(tLat) - sin(fLat) * cos(tLat) * cos(deltaL) let bearing = atan2(x,y) let bearingInDegrees = bearing.toDegrees print("Bearing Degrees :",bearingInDegrees) // sanity check // let degree = radiansToDegrees(atan2(sin(tLng-fLng)*cos(tLat), cos(fLat)*sin(tLat)-sin(fLat)*cos(tLat)*cos(tLng-fLng))) if bearingInDegrees >= 0 { return bearingInDegrees } else { return bearingInDegrees + 360 } }

At the end of the WWDC 2023 sessoion https://developer.apple.com/wwdc23/10111 the session talks about implementing Virtual Hands. However the Code shown in the Video is not correct anymore with the latest version of VisionOS and also the example “SpaceGloves“ Entity referenced in the Video is not documented and there is no example project resource to reference either. I have been trying for the last two weeks to implement the same basic example shown in this video, including skinning and rigging my own hand meshes But have had significant issues doing so and found no working code/usdz examples to reference across different internet resource. Is it possible for a working project/code example including USDZ files for the Hand Meshes to be provided in order to test a working example of this as a starting point for building my own virtual hands? Thanks for your help.