At the moment the map kit APls only support non-volumetric maps (i.e. in a window or in a volume, but on a 2D surface).
Is support for 3D volumetric maps in VisionOS in the works? And if so when can we expect it to be available?
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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,
I am creating an ECS. With this ECS I will need to register several DragGesture.
Question: Is it possible to define DragGestures in ECS? If yes, how do we do that? If not, what is the best way to do that?
Question: Is there a "gesture" method that takes an array of gestures as a parameter?
I am interested in any information that can help me, if possible with an example of code.
Regards
Tof
If I correctly understand, a new Enterprise API has been introduced In visionOS 26 allowing to fix windows to the user frame of reference, implementing a something like an "head up display", with the window tracking the user movements.
Is this API only available to enterprise applications, and if so is there a plan to make it available for every kind of app?
Hi,
I'm developing an app for the Apple Vision Pro.
Inside the app the user should be able to load objects from the web into the scene and then be able to move them around (dragging and rotating) via gestures.
My question:
I'm working with RealityKit and use RealityView..
I have no issues loading in one object and making it interactive by adding gestures to the entire RealityView via the .gestures() function.
Also I succeeded in loading multiple objects into the scene.
My problem is that I can't figure out how to add my gestures to multiple objects independently.
I can't use Reality composer since I'm loading the objects dynamically into the scene.
Using .gestures() doesn't work for multiple objects since every gesture needs to be targeted to a specific entity but I have multiple entities.
I also tried defining a GestureComponent and adding it to every newly loaded entity but that doesn't seem to work as nothing happens,
even though my gesture is targeted to every entity having my GestureComponent.
I only found solutions that are not usable on Visionos / RealityView like installGestures.
Also I tried following this guide: https://developer.apple.com/documentation/realitykit/transforming-realitykit-entities-with-gestures
But I feel like there are things missing and contradictory, like a extension of RealityView is mentioned but not shown and the guide states that we don't need to store the translation values for every entity and therefore creates a EntityGestureState.swift file to store these values but then it's not used and a GestureStateComponent is used instead that was never mentioned and contradicts what was just said about not storing values per entity because a new instance of it is created for every entity. Nevermind, following the guide didn't lead me to a working solution.
When viewing an immersive space and I open a spatial photo in Quick Look, which hides the entire app interface to show the photo. Is there a memory limit? If the inmersive space is not active, the application keep the interface.
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.
Topic:
Spatial Computing
SubTopic:
General
Tags:
SwiftUI
RealityKit
Reality Composer Pro
Shader Graph Editor
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 Nathaniel,
I spoke with you yesterday in the WWDC lab. Thanks for chatting with me! Is it possible to get a link to a doc that has some key metrics I'd find in a RealityKit trace so I know if that metric is exceeding limits and probably causing a problem? Right now, I just see numbers and have no idea if a metric is high or low :). This is specifically for a VisionOS app.
Thanks,
Bob
I am experimenting with RealityKit to set up a portal. Everything works, but I was wondering where the scene's origin is with respect to the front of the portal window?
From experiments, the origin's X and Y appear to be at the center of the portal window, while the origin's Z appearing to be about a meter behind the portal window.
Is this (at least roughly) correct? Is it documented anywhere?
PS. I began with the standard visionOS app and edited the Reality Composer Pro file to create the scene.
With the new ImagePresentationComponent in visionOS 26, how can text/overlays be shown on top of the image as seen in the Spatial Gallery app?
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)
Hi !
I'm new on this forum, so if I need to update this post to have more info, or anything else, please let me know.
I'm using the Apple Vision Pro to develop some app (with unity). To demonstrate what the user see on the headset, I would like to mirror the view on a device (an iPad in this case). I managed to do this without any issue.
My problem is that, in the Vision Pro, I have an interface that the user can interact with. But I would like to be able to manage myself the interface on the iPad. What I mean is that the user can (or can't, doesn't matter) see the interface in the headset, and the interface is controlled by myself on the iPad.
Is there any way to do this ? Is this a question I should ask on unity's forum ? (I don't think so, because it should be related to the mirroring function non ?)
Topic:
Spatial Computing
SubTopic:
General
I have a grpc server running inside of a task. When the user takes the headset off, the grpc server will no longer work when they put the headset back on.
I would like to have this action detected so that I can cancel the task (which will effectively close the grpc server).
I am also using a visual indicator to let the user know if the server is running, but it will not accurately reflect the state of the server when removing and putting back on the headset.
Topic:
Spatial Computing
SubTopic:
General
I am trying to run widgets on visionOS 26. Specifically I am trying to pin them to the simulator room's walls, however I am unable to do so.
Is this a limitation with the visionOS simulator right now, or am I missing a trick here?
I would like to visualize a point cloud taken from a lidar. Assuming I can get the XYZ values of every point (of which there may be hundreds or thousands), what is the most efficient way for me to create a point cloud using this information?
I have Mac mini M4 with 16GB memory, the Xcode is 16.1, when I test my Vision Pro App with the Simulator, it is very slow and system shows the memory is under the high pressure.
How do I run/test/debug the application on Vision Pro directly? Tried to add my Vision Pro to my developer account, it didn't work due to cannot find UDID, when I hook the USB to the battery, it only shows Battery device ID.
Topic:
Spatial Computing
SubTopic:
General
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.
Hey there,
since SceneView has been marked as „deprecated“ for SwiftUI, I‘m wondering which alternatives should be considered for the following situation:
I have a SwiftUI app (for iOS and iPadOS) where users can view (with rotate, scale, move gestures) 3D models (USDZ) in a scene. The models will be downloaded from web backend and called via local URL paths.
What I tested:
I‘ve tried ARView in .nonAR mode, RealityView, however I didn‘t get the expected response -> User can rotate, scale the 3D models in a virtual space.
ARView in nonAR mode still shows the object like in normal AR mode without camera stream.
I tried to add Gestures to the RealityView on iOS - loading USDZ 3D models worked but the gestures didn’t).
Model3D is only available for visionOS (that would be amazing to have it for iOS)
I also checked QuickLook Preview however it works pretty strange via Filepicker etc, which is not the way how the user should load the 3D models in my app.
Maybe I missed something, I couldn’t find anything which can help me. I‘m pretty much stucked adopting the latest and greatest frameworks/APIs in my App and taking the next steps porting my app to visionOS.
Long story short 😃:
Does someone have an idea what is the alternative to SceneView for USDZ 3D models?
I appreciate your support!!
Thanks in advance!