How can I request access to Enterprise API for VisionPro with an individual developer account? I wanted it for learning and testing
Discuss spatial computing on Apple platforms and how to design and build an entirely new universe of apps and games for Apple Vision Pro.
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Hello, I've pre-ordered the Logitech Muse with hopes of developing with it, but have yet to find any documentation relating to the capabilities it will have/any APIs that will be available to take advantage of the Muse. Is anyone aware of what might become available?
Thank you in advance.
Hi everyone! I am working on AR app and wanted to implement object occlusion because it removes drift pretty much from the object. This working great with RealityKit sample But I am unable to replicate such behaviour it with scenekit. Because scenekit does not offer object occlusion. Can we say scenekit is getting depricated, and we should re-write app in RealityKit (which is obviously a big task)?
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!
Topic:
Spatial Computing
SubTopic:
Reality Composer Pro
Tags:
RealityKit
Reality Composer Pro
visionOS
It's all about notifications to trigger actions from RCP's new Timeline system. From Compose interactive 3D content in Reality Composer Pro I am actually starting to confuse why there was need to use Entity.applyTapForBehaviors in code to trigger content in Behaviors Component. Simply because in Behaviors Component, we have chosen OnTap to allow a "Tap Notification" to trigger our action (on a selected target object).
Then I guess by selecting OnCollision this trigger, I should write something like CollisionEvent.entityA.applyCollisionForBehaviors, which we don't have. And ofc the collision on my object won't trigger this action (because I only did things in RCP not in code).
Ignoring this post has pointed out we could use Behaviors Component's OnNotification to trigger something for now.
I found that I could still use OnTap trigger but actually put my code Entity.applyTapForBehaviors under my subscribed collision's begin event. That actually works better than OnCollision
So what is the design principles here? And how could I trigger a collision notification to let my Behaviors Component's OnCollision actually works?
I've been using the MacOS XCode Reality Composer to export interactive .reality files that can be hosted on the web and linked to, triggering QuickLook to open the interactive AR experience.
That works really well.
I've just downloaded XCode 15 Beta which ships with the new Reality Composer Pro and I can't see a way to export to .reality files anymore. It seems that this is only for building apps that ship as native iOS etc apps, rather than that can be viewed in QuickLook.
Am I missing something, or is it no longer possible to export .reality files?
Thanks.
Topic:
Spatial Computing
SubTopic:
Reality Composer Pro
Tags:
QuickLook
Reality Composer
Reality Composer Pro
Has Roomplan been abandoned? Two years have gone by without comments from Apple on improvements. Are the improvements behind the scenes? Is there going to be any major updates?
Hi,
We’ve been successfully using the RoomPlan API in our application for over two years. Recently, however, users have reported encountering persistent capture errors during their sessions. Specifically, the errors observed are:
CaptureError.worldTrackingFailure
CaptureError.exceedSceneSizeLimit
What we have observed:
Persistent Errors: The errors continue to occur even after initiating new capture sessions.
Normal Usage: Our implementation adheres to typical usage patterns of the RoomPlan API without exceeding any documented room size limits.
Limited Feature Usage: We are not utilizing the WorldTracking feature for the StructureBuilder functionality to stitch rooms together.
Potential State Caching: Given that these errors persist across sessions, we suspect that there might be memory or state cached between sessions that is not being cleared, particularly since we are not taking advantage of StructureBuilder.
Request:
Could you please advise if there is any internal caching or memory retention between capture sessions that might lead to these errors? Additionally, we would appreciate guidance on how to clear or manage this state when the StructureBuilder feature is not in use.
Here is a generalised version of our capture session initialization code to help diagnose the issue.
struct RoomARCaptureView: UIViewRepresentable {
typealias Handler = (CapturedRoom, Error?) -> Void
@Binding var stop: Bool
@Binding var done: Bool
let completion: Handler?
func makeUIView(context: Self.Context) -> RoomCaptureView {
let view = RoomCaptureView(frame: .zero)
view.delegate = context.coordinator
view.captureSession.run(configuration: .init())
return view
}
func updateUIView(_ uiView: RoomCaptureView, context: Self.Context) {
if stop {
// Stop the session only once, multiple times causes issues with the final presentation
uiView.captureSession.stop()
stop = false
done = true
}
}
static func dismantleUIView(_ uiView: RoomCaptureView, coordinator: Self.Coordinator) {
uiView.captureSession.stop()
}
func makeCoordinator() -> ARViewCoordinator {
ARViewCoordinator(completion)
}
@objc(ARViewCoordinator)
class ARViewCoordinator: NSObject, RoomCaptureViewDelegate {
var completion: Handler?
public required init?(coder: NSCoder) {}
public func encode(with coder: NSCoder) {}
public init(_ completion: Handler?) {
super.init()
self.completion = completion
}
public func captureView(shouldPresent roomDataForProcessing: CapturedRoomData, error: (Error)?) -> Bool {
return true
}
public func captureView(didPresent processedResult: CapturedRoom, error: (Error)?) {
completion?(processedResult, error)
}
}
}
Thank you for your assistance.
We use SceneReconstructionProvider to detect meshes in the surrounding environment and apply an OcclusionMaterial to them.
// Assuming `entity` represents one of the detected mesh in the environment
entity.components.set(ModelComponent(
mesh: mesh,
materials: [OcclusionMaterial()]
))
While this correctly occludes entities placed in the immersive space, it also occludes system windows. This becomes problematic when a window is dragged into an occluded area (before or after entering the immersive space), preventing interaction with its elements. In some cases, it also makes it impossible to focus on the window’s drag handle, since this might become occluded as well after moving the window nearby. More generally, system windows can be occluded when they come into proximity with a model that has OcclusionMaterial applied.
I'm aware of a change introduced in visionOS 2 regarding how occlusions interact with UI elements (as noted in the release notes). I believe this change was intended to ensure windows do not remain visible when opened in another room. However, this also introduces some challenges, as described in the scenario above.
Is there a way to prevent system window occlusion while still allowing entities to be occluded by environmental features? Perhaps not using OcclusionMaterial at all?
Development environment: Xcode 16.2, macOS 15.2
Run-time configuration: visionOS 2.2 and 2.3
This post documents an issue I reported in feedback FB19610114 and see if anyone knows of a workaround. Here is a copy of the feedback.
Short version
Manipulation (SwiftUI OR RealityKit) fails to translate entities after changing rooms. By changing rooms, I mean a human wearing an Apple Vision Pro leaving one room and entering another room. Once this issue occurs, it impacts all apps that use these features. A device restart is the only solution I have to fix it.
Feedback FB19610114
This is an odd one. I'm using the new Manipulation Component in visionOS 26. Most of the time this works well. Sometime it stops working and when it does the only way to get it working again is to reboot the headset.
When this happens, I can continue to rotate and scale items, but translation no longer works. It is as if the item is stuck to a fixed point in the parent scene (window, volume, etc). When this bug occurs, it affects every app across the entire operating system that is using manipulation, including the RealityKit component AND the SwiftUI version. This is not limited to one app and is not limited to apps that I am working on. Once this error occurs, it affects literally any application across the operating system that is using this API, including apps from Apple.
I won't speculate on the cause of this, but I do know of one way where I can always get it to happen.
Here is how to reproduce it:
Make an Xcode project with a single entity that uses the Manipulation Component. There is no need to customize the configuration of this component. The default implementation will work.
Build and run this app on device. You can keep running from device or quit and launch the app like normal on device.
Open the app and manipulate the entity - it should work as expected.
Physically walk into another room. It is vital that you leave the current room that you are in and enter a different room entirely.
Use the digital crown to recenter your view and bring your window or volume to you.
Test the manipulation on the entity again - it should still be working as expected at this point.
Physically, move yourself and your headset into the original room where you started.
Use the digital crown to recenter your view and bring your window or volume to you.
Test the manipulation on the entity again - you should now see the issue.
When I follow the steps above, then 100% of the time manipulation translation stops working at this point. It will impact any application using this API. The only way to fix it is to restart my headset.
A few points to keep in mind
It does not matter if an app is actively being run from Xcode.
When this occurs, it impacts every single app, not just one.
When this occurs, rotation and scaling continue to work, but the entity/view cannot be translated.
This impacts BOTH the SwiftUI version and the RealityKit version.
When this occurs, the only way to "fix" it is to reboot the device.
The issue reproducible with empty project. When you run it and tap "Open immersive space" it takes a couple of minutes to respond. The issue only reproducible on real device with debugger attached. Reproducible other developers too (not specific to my environment). Issue doesn't exists in Xcode 16.
Afer initial long delay subsequent opens works fine.
Console logs:
nw_socket_copy_info [C1:2] getsockopt TCP_INFO failed [102: Operation not supported on socket]
nw_socket_copy_info getsockopt TCP_INFO failed [102: Operation not supported on socket]
Failed to set dependencies on asset 9303749952624825765 because NetworkAssetManager does not have an asset entity for that id.
void * _Nullable NSMapGet(NSMapTable * _Nonnull, const void * _Nullable): map table argument is NULL
PSO compilation completed for driver shader copyFromBufferToTexture so=0 sbpr=256 sbpi=16384 ss=(64, 64, 1) p=70 sc=1 ds=0 dl=0 do=(0, 0, 0) in 1997
XPC connection interrupted
<<<< FigAudioSession(AV) >>>> audioSessionAVAudioSession_CopyMXSessionProperty signalled err=-19224 (kFigAudioSessionError_UnsupportedOperation) (getMXSessionProperty unsupported) at FigAudioSession_AVAudioSession.m:606
Failed to load item AXCodeItem<0x14706f250> [Rank:6000] SpringBoardUIServices [AXBundle name:/System/Library/AccessibilityBundles/SpringBoardUIServices.axbundle/SpringBoardUIServices] [Platforms and Targets:{ iOS = SpringBoardUIServices; } Framework] [Excluded: (null)]. error: Error Domain=AXLoading Code=0 "URL does not exist: file:///System/Library/AccessibilityBundles/SpringBoardUIServices.axbundle" UserInfo={NSLocalizedDescription=URL does not exist: file:///System/Library/AccessibilityBundles/SpringBoardUIServices.axbundle}
Failed to load item AXCodeItem<0x14706f250> [Rank:6000] SpringBoardUIServices [AXBundle name:/System/Library/AccessibilityBundles/SpringBoardUIServices.axbundle/SpringBoardUIServices] [Platforms and Targets:{ iOS = SpringBoardUIServices; } Framework] [Excluded: (null)]. error: Error Domain=AXLoading Code=0 "URL does not exist: file:///System/Library/AccessibilityBundles/SpringBoardUIServices.axbundle" UserInfo={NSLocalizedDescription=URL does not exist: file:///System/Library/AccessibilityBundles/SpringBoardUIServices.axbundle}
[b30780-MRUIFeedbackTypeButtonWithBackgroundTouchDown] Playback timed out before completion (after 3111 ms)
Failed to set dependencies on asset 7089614247973236977 because NetworkAssetManager does not have an asset entity for that id.
Spatial photo in RealityView has a default corner radius. I made a parallel effect with spatial photos in ScrollView(like Spatial Gallery), but the corner radius disappeared on left and right spatial photos. I've tried .clipShape and .mask modifiers, but they did't work. How to clip or mask spatial photo with corner radius effect?
Hello everyone,
I am currently developing an experience for visionOS using RealityKit and I would like to achieve volumetric light effects, such as visible light rays or shafts through fog or dust.
I found this GitHub project: https://github.com/robcupisz/LightShafts, which demonstrates the kind of visual style I am aiming for. I would like to know if there is a way to create similar effects using RealityKit on visionOS.
So far, I have experimented with DirectionalLight, SpotLight, ImageBasedLight, and custom materials (e.g., additive blending on translucent meshes), but none of these approaches can replicate the volumetric light shaft look shown in the repository above.
Questions:
Is there a recommended technique or workaround in RealityKit to simulate light shafts or volumetric lighting?
Is creating a custom mesh (e.g., cone or volume geometry with gradient alpha and additive blending) the only feasible method?
Are there any examples, best practices, or sample projects from Apple or other developers that showcase a similar visual style?
Any advice or hints would be greatly appreciated. Thank you in advance!
Topic:
Spatial Computing
SubTopic:
General
Tags:
RealityKit
Reality Composer Pro
Shader Graph Editor
visionOS
hi guys,
I'm working in VFX industry and I've got the question that, is it possible to create immersive video directly from virtual scene created in DCC software like maya, rendered into footage, then coded into immersive video, and finally play in in vision pro?
thanks.
Topic:
Spatial Computing
SubTopic:
General
Hi,
since iOS 15 I've repeatedly noticed the console warning »ARSessionDelegate is retaining X ARFrames. This can lead to future camera frames being dropped« even for rather simple projects using RealityKit and ARKit. Could someone from the ARKit team please elaborate what causes this warning and what can be done to avoid it?
If I remember correctly I didn't even assign an ARSessionDelegate.
Thank you!
Hi Apple Team,
We noticed the following exciting changelog in the latest macOS 26 beta:
A new algorithm significantly improves PhotogrammetrySession reconstruction quality of low-texture objects not captured with the ObjectCaptureSession front end. It will be downloaded and cached once in the background when the PhotogrammetrySession is used at runtime. If network isn’t available at that time, the old low quality model will be used until the new one can be downloaded. There is no code change needed to get this improved model. (145220451)
However after trying this on the latest beta and running some tests we do not see any differences on objects with low textures such as single coloured surfaces. Is there anything we are missing? the machine is definitely connected to the internet but we have no way of knowing from the logs if the new model is being used?
thanks
Hello, I am trying to develop an app that broadcasts what the user sees via Apple Vision Pro. I am a graduate student studying at the university.
And I have two problems,
If I want to use passthrough in screen capture (in VisionOS), do I have to join Apple Developer Enterprise Program to get Enterprise API?
and Can I buy Apple Developer Enterprise Program (Enterprise API) with my university account?
Have any of you been able to do this?
Thank you
My friend cannot build my visionOS project in the simulator. He gets the following error.
Error:
[xrsimulator] Exception thrown during compile: cannotGetRkassetsContents(path: "/Users/path/to/Packages/RealityKitContent/Sources/RealityKitContent/RealityKitContent.rkassets")
In Xcode, he is able to open the RealityKitContent package in realityComposer Pro by clicking on the Package.realitycomposerpro file. No warnings show up wrt this error in RCP either. All scenes appear to be usable/navigable in RCP. This error only comes up when he tries to build the project in Xcode command+b. The is no other information in the Report Navigator's Build logs for this error. The error is always followed by this next error.
Error:
Tool exited with code 1
Yikes, please help!
Topic:
Spatial Computing
SubTopic:
Reality Composer Pro
I sketched a idea for a project in Reality Composer on my iPad, thinking when I had a chance to sit down I would work it up in Xcode.
However, when I got back to my computer, I discovered I cannot open a file created in Reality Composer (or the exported Reality file) in Reality Composer Pro.
Am I missing something obvious here, because this seems like a huge oversight.
If anyone, can let me know how to open a file created in Reality Composer in Reality Composer Pro, I would greatly appreciate it. Partly, because there seems to be objects available in Reality Composer that are not in Reality Composer Pro.
Thanks
Stan
Hi,
We have been experimenting with VisionOS and we are in need to query the field of view values for each eye of the device. We are currently using drawable.views[0].tangents and drawable.views[1].tangents respectively which is labeled as 'Depreceated' . We wonder is there an alternative function for obrtaining FOVs since we had no luck to calcuate them out of the projection matrix we obtain from drawables.
Thanks