In visionOS, once an immersive space is opened, the background color is solid black, is it possible to make this background transparent? FYI, The Immersive spaces on visionOS uses Compositor Services for drawing 3D content.

If I update vision pro size then textfield and button are not update as per its new size. Its working on some scren but not in some screen. Please refer below screenshot for your reference,

Hi team I don't know from this error has popped up any suggestions please Thanks Zippy Games

Hi, I am trying to update what entities are visible in my RealityView. After the SwiftData set is updated, I have to restart the app for it to appear in the RealityView. Also, the RealityView does not close when I move to a different tab. It keeps everything on and tracking, leaving the model in the same location I left it. import SwiftUI import RealityKit import MountainLake import SwiftData struct RealityLakeView: View { @Environment(\.modelContext) private var context @Query private var items: [Item] var body: some View { RealityView { content in print("View Loaded") let lakeScene = try? await Entity(named: "Lake", in: mountainLakeBundle) let anchor = AnchorEntity(.plane(.horizontal, classification: .any, minimumBounds: SIMD2<Float>(0.2, 0.2))) @MainActor func addEntity(name: String) { if let lakeEntity = lakeScene?.findEntity(named: name) { // Add the Cube_1 entity to the RealityView anchor.addChild(lakeEntity) } else { print(name + "entity not found in the Lake scene.") } } addEntity(name: "Island") for item in items { if(item.enabled) { addEntity(name: item.value) } } // Add the horizontal plane anchor to the scene content.add(anchor) content.camera = .spatialTracking } placeholder: { ProgressView() } .edgesIgnoringSafeArea(.all) } } #Preview { RealityLakeView() }

We use Unity6+VisonOS2.2 to develop an MR Application. App Mode: RealityKit with PolySpatial, In the actual test, we found that when my moving position is more than 80~100 meters away from the starting position of the application, my current position will be reset to Vector.zero, which will cause my application experience to be very bad. Is anyone experiencing the same problem? Is there a solution?

In visionOS, there are existing modifiers that can completely conceal the hands. However, I am interested in learning how to achieve the effect of only one hand disappearing while the other hand remains visible. .upperLimbVisibility(.hidden)

Hi, since RealityKit 4 now supports Blend Shapes I was wondering if there are any workflow or tooling recommendations to bake/export them into a USDZ. Are Blender or Cinema4D capable to do that out of the box? Should we look into NVIDIA omniverse (https://docs.omniverse.nvidia.com/connect/latest/blender/manual.htm) So far this topic seems very sparsely documented and I would appreciate any hints. Thank you!

I have a MeshResource and I would like to create a collision component from it. let childBounds = child.visualBounds(relativeTo: self) var childShape: ShapeResource do { // Crashed by the following line instead of throwing a Swift Error childShape = try await ShapeResource.generateConvex(from: childModel.mesh); } catch { childShape = ShapeResource.generateBox(size: childBounds.extents) childShape = childShape.offsetBy(translation: childBounds.center) } Based on this document: https://developer.apple.com/documentation/realitykit/shaperesource/generateconvex(from:)-6upj9 Will throw an error if mesh does not define a nonempty convex volume. For example, will fail if all the vertices in mesh are coplanar. But, the method crashes the app instead of throwing a Swift error Incident Identifier: 35CD58F8-FFE3-48EA-85D3-6D241D8B0B4C CrashReporter Key: FE6790CA-6481-BEFD-CB26-F4E27652BEAE Hardware Model: Mac15,11 ... Version: 1.0 (1) Code Type: ARM-64 (Native) Role: Foreground Parent Process: launchd_sim [2057] Coalition: com.apple.CoreSimulator.SimDevice.85A2B8FA-689F-4237-B4E8-DDB93460F7F6 [1496] Responsible Process: SimulatorTrampoline [910] Date/Time: 2025-01-26 16:13:17.5053 +0800 Launch Time: 2025-01-26 16:13:09.5755 +0800 OS Version: macOS 15.2 (24C101) Release Type: User Report Version: 104 Exception Type: EXC_BREAKPOINT (SIGTRAP) Exception Codes: 0x0000000000000001, 0x00000001abf841d0 Termination Reason: SIGNAL 5 Trace/BPT trap: 5 Terminating Process: exc handler [17316] Triggered by Thread: 0 Thread 0 Crashed: 0 CoreRE 0x1abf841d0 REAssetManagerCollisionShapeAssetCreateConvexPolyhedron + 232 1 CoreRE 0x1abf845f0 REAssetManagerCollisionShapeAssetCreateConvexPolyhedronFromMesh + 868 2 RealityFoundation 0x1d25613bc static ShapeResource.generateConvex(from:) + 148 Here is the message on the app console from Xcode /Library/Caches/com.apple.xbs/Sources/REKit_Sim/ThirdParty/PhysX/physx/source/physxcooking/src/convex/QuickHullConvexHullLib.cpp (935) : internal error : QuickHullConvexHullLib::findSimplex: Simplex input points appers to be coplanar. Failed to cook convex mesh (0x3) assertion failure: 'convexPolyhedronShape != nullptr' (REAssetManagerCollisionShapeAssetCreateConvexPolyhedron:line 356) Bad parameters passed for convex mesh creation. Message from debug The above crash happened on a visionOS simulator (visionOS 2.2 (22N840)

Hello, I am currently developing a Vision Pro VR application with Unreal Engine 5.5. Is it possible to interact with objects (grabbing, clicking on buttons)? I cannot find any information on this. Thank you.

I’m working on an iOS app that needs to measure the area of planes or surfaces, like the length and width of objects, just like the Apple Measure app does. I’ve been exploring ARKit, but I’m curious if there are any APIs or techniques that can help automate the process of detecting and measuring planes. Specifically, I’m looking for a way to automatically detect and measure planes (e.g., from a top-down view). For example: Measuring a box width and length. I have attached a screenshot and a video of the Apple Measure App doing it. Does Apple provide any tools or APIs for this, or are there any best practices I should know about? I’d love to hear from anyone who’s tackled something similar. Video: https://drive.google.com/file/d/1BxM7fIbFxsCsYwY7w8ZxIeq_4WTGkkwA/view?usp=drive_link

I am getting the error "Initializing hosting entity without a context" in the console when I build and run my game in XCode 16.0 beta, targeting Vision Pro OS 2.0 (22N5252n). Not sure where the error is originating.

I would like to integrate the object capture API with a ML model for analysis. So, i will need to get the current frame into CG images for further process. Thanks in advance !

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.

I implemented a ShaderGraphMaterial and tried to load it from my usda scene by ShaderGraphMaterial.init(name: in: bundle). I want to dynamically set TextureResource on that material, so I wanted to expose texture as Uniform Input of a ShaderGraphMaterial. But obviously RCP's Shader Graph doesn't support Texture input as parameter as the image shows: And from the code level, ShaderGraphMaterial also didn't expose a way to set TexturesResources neither. Its parameterNames shows an empty array if I didn't set any custom input params. The texture I get is from my backend so it really cannot be saved into a file and load it again (that would be too weird). Is there something I am missing?

Hi there. Thanks to amazing help from you guys, I've managed to code a 360 image carousel, where the user can browse 360 images located inside the project package. Is there a way to access the filesystem on AVP outside the app? I know about the FileManager, and I can get access to the .documentsDirectory, but how do I access documents folder from the "Files" app on the AVP? My goal is to read images from a hardcoded folderlocation on the AVP, such that the user never will have to select the images themselves. I know this may not be the "right" way to do this. The app is supposed to be "foolproof" with a minimum of userinteraction. The only way to change the images should be to change the contents of the hardcoded imagefolder. I hope this makes sense =) Thanks in advance! Regards, Kim

Hi, I created an app using iOS Object Capture API which works only on Lidar enabled phones. It's a limitation of the Api provided by apple itself. I Submitted an app for Review , but It is getting rejected (Twice) saying it doesnt work on non pro models. Even though I explained that capturing Needs Lidar and supported only in PRO models, It still gets rejected after testing in Non Pro models. is there a way out?

I have a huge sphere where the camera stays inside the sphere and turn on front face culling on my ShaderGraphMaterial applied on that sphere, so that I can place other 3D stuff inside. However when it comes to attachment, the object occlusion never works as I am expecting. Specifically my attachments are occluded by my sphere (some are not so the behavior is not deterministic. Then I suspect it was the issue of depth testing so I started using ModelSortGroup to reorder the rending sequence. However it doesn't work. As I was searching through the internet, this post's comments shows that ModelSortGroup simply doesn't work on attachments. So I wonder how should I tackle this issue now? To let my attachments appear inside my sphere. OS/Sys: VisionOS 2.3/XCode 16.3

I can generate a ShapeResource from a ReakityKit entity's extents. Could I apply some scaling to the generated shape. Is there a way to do that? // model is a ModelResource and bounds is a BoundingBox var shape = ShapeResource.generateConvex(from: model.mesh); shape = shape.offsetBy(translation: bounds.center) // How can I scale the shape to fit within the bounds? The following API only provide the rotation and translation support. and I cannot find the scale support. offsetBy(rotation: simd_quatf = simd_quatf(ix: 0, iy: 0, iz: 0, r: 1), translation: SIMD3<Float> = SIMD3<Float>()) I can put the ShapeResource on an entity and scale the entity. But, I would like to know if it is possible to scale the ShapeResource itself without attaching it to an entity.

Hi, I have a question. In visionOS, when a user looks at a button and performs a pinch gesture with their index finger and thumb, the button responds. By default, this works with both the left and right hands. However, I want to disable the pinch gesture when performed with the left hand while keeping it functional with the right hand. I understand that the system settings allow users to configure input for both hands, the left hand only, or the right hand only. However, I would like to control this behavior within the app itself. Is this possible? Best regards.

I am considering adding finger pad haptics (Data flow for haptic feedback is directed from the AVP to the fingers, not vice versa). Simple piezos wired to a wrist connection holding the driver/battery. But I'm concerned it will impact the hand tracking. Any guidance regarding gloves and/or the size of any peripherals attached to fingers? Or, if anyone has another (inexpensive) low profile option on the market please LMK. Thanks