In Progressive mode, you can turn the digital crown which will reveal your environment by limiting/expanding the field of view of your Immersive scene. I'm trying to create a different sort of behavior where your Immersive scene remains in 360 mode but adjusting a dial (doesn't have to be the crown, it could be an in-app dial/slider) adjusts the transparency of the scene. My users aren't quite satisfied with the native features that help ensure you aren't about to run into a wall or furniture and want a way of quickly adjusting the transparency on the fly. Is that possible?

Hi, I'm very new to 3D and am currently porting a SwiftUI iOS app to visionOS 2.0. I saw WWDC24 feature Blender in multiple spatial videos, and have begun integrating Blender models and animations into my VisionOS app (I would also like to integrate skeletons and programmatic rigging, more on that later). I'm wondering if there are “Best Practices” for this workflow - from Blender to USD to RCP 2.0 to visionOS 2 in Xcode. I’ve cobbled together the following that has some obvious holes: I’ve been able to find some pre-rigged and pre-animated models online that can serve as a great starting point. As a reference, here is a free model from SketchFab - a simple rigged skeleton with 6 built in animations: https://sketchfab.com/3d-models/skeleton-character-low-poly-8856e0138f424d68a8e0b40e185951f6 When exporting to USD from Blender, I haven’t been able to export more than one animation per USD file. Is there a workflow to export multiple animations in a single USDC file, or is this just not possible? As a temporary workaround, here is a python script I’ve been using to loop through all Blender animations, and export a model for each animation: import bpy import os # Set the directory where you want to save the USD files output_directory = “/path/to/export” # Ensure the directory exists if not os.path.exists(output_directory): os.makedirs(output_directory) # Function to export current scene as USD def export_scene_as_usd(output_path, start_frame, end_frame): bpy.context.scene.frame_start = start_frame bpy.context.scene.frame_end = end_frame # Export the scene as a USD file bpy.ops.wm.usd_export( filepath=output_path, export_animation=True ) # Save the current scene name original_scene = bpy.context.scene.name # Iterate through each action and export it as a USD file for action in bpy.data.actions: # Create a new scene for each action bpy.context.window.scene = bpy.data.scenes[original_scene].copy() new_scene = bpy.context.scene # Link the action to all relevant objects for obj in new_scene.objects: if obj.animation_data is not None: obj.animation_data.action = action # Determine the frame range for the action start_frame, end_frame = action.frame_range # Export the scene as a USD file output_path = os.path.join(output_directory, f"{action.name}.usdc") export_scene_as_usd(output_path, int(start_frame), int(end_frame)) # Delete the temporary scene to free memory bpy.data.scenes.remove(new_scene) print("Export completed.") I have also been able to successfully export rigging armatures as a single Skeleton - each “bone” showing getting imported into Reality Composer Pro 2.0 when exporting/importing manually. I would like to have all of these animations available in a single scene to be used in a RealityView in visionOS - so I have placed all animation models in a RCP scene and created named Timeline Action animations for each, showing the correct model and hiding the rest when triggering specific animations. I apply materials/textures to each so they appear the same, using Shader Graph. Then in SwiftUI I use notifications (as shown here - https://forums.developer.apple.com/forums/thread/756978) to trigger each RCP Timeline Action animation from code. Two questions: Is there a better way than to have multiple models of the same skeleton - each with a different animation - in a scene to be able to trigger multiple animations? Or would this require recreating Blender animations using skeleton rigging and keyframes from within RCP Timelines? If I want to programmatically create custom animations and move parts of the skeleton/armatures - do I need to do this by defining custom components in RCP, using IKRig and define movement of each of the “bones” in Xcode? I’m looking for any tips/tricks/workflow from experienced engineers or 3D artists that can create a more efficient/optimized workflow using Blender, USD, RCP 2 and visionOS 2 with SwiftUI. Thanks so much, I appreciate any help! I am very excited about all the new tools that keep evolving to make spatial apps really fun to build!

Hello! I have developed an application using Unity that runs on the visionPro. I have correctly built it, installed it on the device and it works. The spatial computing application continue to work after several days (pretty normal, I launch the app and it works. It doesn't use any external services). After several weeks, like a month or so, I launch again the same app but it's not working anymore. The only way I have to make it work again is to rebuild and reinstall it again. What am I missing here? Why an application built and installed few weeks ago suddenly stops working on the VisionPro?

Hello, I am trying to make an app that involves room scanning and then placing of imaginary objects in the room. I had two questions about the specifics behind this. Is it possible for Roomplan to include the ceiling when scanning the room? Is it possible to place objects in AR while Room plan is running, or is it necessary to wait until after the scan is done?

Hello, I want to capture video from Vision Pro in the Vision OS app. I am referring to the (https://developer.apple.com/videos/play/wwdc2024/10139/) Apple video and their code. step like below import ARKit com.apple.developer.arkit.main-camera-access.allow = true in info.plist Do below code func loadCameraFeed() async { // Main Camera Feed Access Example let formats = CameraVideoFormat.supportedVideoFormats(for: .main, cameraPositions:[.left]) let cameraFrameProvider = CameraFrameProvider() var arKitSession = ARKitSession() var pixelBuffer: CVPixelBuffer? await arKitSession.queryAuthorization(for: [.cameraAccess]) do { try await arKitSession.run([cameraFrameProvider]) } catch { return } guard let cameraFrameUpdates = cameraFrameProvider.cameraFrameUpdates(for: formats[0]) else { return } print(cameraFrameUpdates) for await cameraFrame in cameraFrameUpdates { print(cameraFrame) guard let mainCameraSample = cameraFrame.sample(for: .left) else { continue } pixelBuffer = mainCameraSample.pixelBuffer } } I want to convert "pixelBuffer" into video streaming and show it in a frame like iOS. Please guide me on how to achieve my next step. I am blank after this code.

For context, we have a fully immersive application running on visions. The application starts with a standard View/menu, and when the user clicks an option, it takes you to fully immersive mode with a small floating toolbar window that you can move and interact with as you move around the virtual space. When the user clicks the small x button below the window, we intercept the scenePhase .background event and handle exiting immersive mode and displaying the main menu. This all works fine. The problem happens if the user turns around and doesn't look at the floating window for a couple of minutes. The system decides that the window should go into the background, and the same scenePhase background event is called - causing the system to exit immersive mode without warning. There seems to be no way of preventing this, and no distinction between this and the user clicking the close button. Is there a reliable way to detect if the user intentionally clicks the close button vs the window from going into the background through lack of use? onDisappear doesn't trigger. thanks in advance

I'm having issue with loading 1.2GB USDZ file with visionOS Here's the details the file is download via backend api file is download to document directory FileManager.default.url(for: .documentDirectory, in: .userDomainMask, appropriateFor: nil, create: true) when loading the asset, it took almost 30s to load the asset Loaded usd((extension in RealityFoundation):RealityKit.Entity.LoadStatistics.USDLoader.rio) in 29.24642503261566 seconds loading asset code let model = try await Entity(contentsOf: assetUrl) USDZ file is exported from RealityComposerPro Did I make any mistake on the flow or is there any other approach to decrease the loading time?

Hello I've just updated my Vision Pro to the newest and greatest 2.0, and I see that the way to call out control center has been changed to the hand gesture which I'm assuming that is powered by computer vision? using the cams, for me there is a use case of watching apple TV shows at night where my gf would like to have the lights turned off, and that is the time where it fails, the new method is greate and the responsiveness are crazily good, but I would like this to be a toggle so that we can select our own method? like for example during the day where lights are sufficient we use the new gestrue recogn way, and when low light we can switch it back to look up? or as a fellow programmer who are just learning, I think it is possible to just make it automatic toggle, whenever the lighting condition can't make the hand gestrue work, hope to see that fixed :) cheers

In our VisionOS project we want to apply wall panel on walls in a room , we are occluding furniture kept in front of walls by creating a mesh of occlusion material on everything except walls but this way is not able to occlude objects perfectly , edges are not smooth , panel coming over tv, table etc. Is there any other way to achieve this.

I would like to know if I can simply show a spatial image on the app without having to open a "preview" The photos would be spatial photos (HEIC files) converted using Vision Pro.

Hello, I’m trying to move my app into vision OS, my app is used for pilot to study the airplane system, is a 3d airplane cockpit build with scene kit and I use sprite scene to animate the cockpit instruments . Scenekit allow to apply as material a sprite scene , so I could animate easy all the different instruments and indication there, but I can’t find this option on reality compose pro , is this possible? any suggestions I can look into to animate and simulate instruments.

I am having problems getting button input from an Xbox game controller. I have the visionOS 2 beta on my Apple Vision Pro, and I am trying to use an Xbox game controller with a RealityView following the instructions from the WWDC session Explore game input in visionOS. The notification about a game controller is picking up the game controller, finds GCInputButtonA, and I am setting closures for touchedChangedHandler, pressedChangedHandler, and valueChangedHandler that just print an os_log statement. buttonA.valueChangedHandler = { button, value, pressed in os_log("Got valueChangedHandler") } At the end of RealityView, I have the modifier RealityView { content in // stuff } .handlesGameControllerEvents(matching: .gamepad) But I am never seeing the log message appear in the console when I press the 'A' button (or any other button). Any ideas what I might be doing wrong? The Xbox controller is pretty old. Settings is reporting it as version 9.0.3

Hi everyone, I'm working with Core ML for object tracking and have successfully trained a couple of models. However, when I try to use the reference object file in the object tracking sample code from the WWDC video, it doesn't work. I'm training the model on a single-color plastic spherical object. Could this be the reason for the issue? I also attempted to use USDZ 3D assets that resemble the real object. Do these need to be trained with the Object Capture app to work properly? Speaking of the Object Capture app, my experience hasn't been great. When I scanned my spherical object, the result was far from a sphere—it looked more like a mushy dough. Any insights or suggestions would be greatly appreciated!

Hi, With this code on iPad Pro (11-inch) (4th generation), when capturing in area mode and pressing the "Next" Button, an overlay with a white dot in the center appears. Everything else is blurred out and the app is stuck. It does seem to work well on iPhones though. Thanks!

We can add many models in the Reality Composer Pro scene, but when I use RealityView to display and add modifiers in SwiftUI, the modifiers will have Effect, and I don't want to do this. I hope this modifier will be valid for a single model in the Reality Composer Pro scenario. May I ask how to add modifiers to a single model in the Reality Composer Pro scene?

Does anyone have code for realistic shaders for the Sun and Earth for a cosmology app in visionOS? Thanks

Hi, I am trying to train an object tracking model on MacBook Air with a M2 silicon. The .usdz file used to train is captured by iPhone 14 pro. However the training process takes too much time. it stay at 0.0% for about an hour and a half. I wonder if there is any other methods to generate reference objects.

Hi fellows, I am developing a conceptual prototype to explore how Apple Vision Pro can be applied in Real Estate selling. But I encounter an problem and to consult with the developer community. When rendering a massive 3D entity, sometimes it work fine but sometimes my Vision Pro device automatically reboot (all the running apps are shutdown and then Apple logo appears to reboot) while running the app. I have a 1:1 3D entity imported into the Reality Composer Pro, and I managed to develop a simple rendering Vision Pro app. It works great after I finally made it work and see the 1:1 building in front of me. You can see the full demo video for details: https://www.icloud.com/iclouddrive/0d5QA-sYSehmLF9rEMXsCUyDg#REPtt02_Demo_v1.1 But sometimes when rendering the 1:1 building, my Vision Pro device suddenly reboot. So far I have no clues on its root cause. It might be caused by the not-enough-memory or for safety concern? (since the 3D entity is big and might block a big area of the view) Can any one or even an official provide some guidance here and identify the root cause? Thx much!

Hello, I am trying to develop an app that broadcasts what the user sees via Apple Vision Pro. I have applied for and obtained the Enterprise API and actually can stream via the "Main camera access" API, as reported on https://developer.apple.com/videos/play/wwdc2024/10139/. My problem is that I have not found any reference to how to integrate the "Passthrough in screen capture" API into my project. Have any of you been able to do this? Thank you

I noticed that tracking moving images is super slow on visionOS. Although the anchor update closure is called multiple times per second, the anchor's transform seems to be updated only once in a while. Another issue might be that the SwiftUI isn't updating more often. On iOS, image tracking is pretty smooth. Is there a way to speed this up somehow on visionOS, too?