I’m currently developing a visionOS app that includes an RCP scene with a large USDZ file (around 2GB). Each time I make adjustments to the CG model in Blender, I export it as USDZ again, place it in the RCP scene, and then build the app using Xcode. However, because the USDZ file is quite large, the build process takes a long time, significantly slowing down my development speed. For example, I’d like to know if there are any effective ways to: Improve overall build performance Reduce the time between updating the USDZ file and completing the build Any advice or best practices for optimizing this workflow would be greatly appreciated. Best regards, Sadao

Hello! Back from last week's amazing visit to Cupertino for the Game Dev session and diving back into Vision Pro experimentation. I've exported a simple geometry nodes with animation test from Blender for use in RCP, with intended output to Vision Pro. I've attached a few screenshots showing the node setup and how it animates over time. I select the Cube mesh and export as .usdc with animation. In the finder via quick look, I can actually see it working! If I try exporting as .usdz, however, i'm not seeing any animation in the finder preview. Next, I import the .usdc file to RCP and add an Animation Library component to the cube mesh, but am not seeing any animation selectable, even though I see animation playing back in preview. Next, I import the .usdc into Maya (via proper USD Stage pipeline - i'm learning to be USD compliant for authoring!) to verify if the animation is working, and it does. What step(s) am I missing to get this working in Reality Composer Pro? My goal is to experiment with animating these geometry node instances - along with color animation if possible - over to Vision Pro for full scale, immersive presentation. Of particular note, I am not a programmer, so I am trying my best to brute force this the only way I currently know possible, by keyframe animation and importing through Reality Composer Pro. I realize that, ideally, I should be learning how to leverage the code portion so I can start programatically controlling my 3d entities (with animation), but need more hand holding and real-world examples to help me get there. Thx!

How can I create 180-degree apple immersive videos using game engine

I'm developing a custom gesture-based visionOS project that uses hand tracking with collision detection spheres on fingers to register user interactions through collision components. I'm experiencing a critical occlusion issue where collision detection spheres are intermittently occluded by the background/depth buffer, causing fingers to pass through the 3D model entities without registering interactions. Detailed Description: I have added 3D entities in an immersive scene with collision spheres attached to fingers for detecting user interactions. Each sphere has: CollisionComponent with sphere shape Proper collision masks and groups configured Real-time position updates from hand joint transforms Each entity has: InputTarget components to register collisions The Issue: When users move their fingers to the entity to interact, some collision spheres (particularly on the pinkie and ring fingers) become occluded and pass directly through the 3D model without triggering collision events. Meanwhile, other fingers (like the index finger) continue to work correctly. This appears to be a depth perception/z-buffer issue between the model entity and the hand tracking collision spheres Questions: Is there a recommended approach for maintaining consistent depth ordering between hand-tracking entities and 3D models in immersive spaces to prevent occlusion issues? Should I be using AnchorEntities to anchor the entity to a plane or world position to establish a more stable depth reference? Are there specific RenderingComponent or material settings that could help ensure collision entities maintain their depth priority and don't get occluded? Could this be related to z-fighting when collision spheres and entity geometry occupy similar depth ranges? If so, what's the recommended depth bias approach? Is there a better architectural approach for implementing interactions with custom hand gesture tracking that avoids these depth perception issues? What Would Help: Implementation guidance for ensuring reliable collision detection between hand-tracked entities through custom gestures and 3D models. Best practices for depth management in immersive spaces with custom hand gesture tracking. Sample code demonstrating stable hand-to-object interaction patterns. Information about whether this is a known limitation or if there are specific APIs I should be leveraging This issue is significantly impacting the reliability of our app experience, as users cannot consistently interact with all model components. Any guidance from Apple engineers or developers who have solved similar depth/occlusion challenges would be greatly appreciated. Additional Context: This is for a productivity-focused application where accuracy and reliability are critical. Thank you for any assistance!

Reality Composer is no longer available in XCode 15 Release. Is this intended or will be available in later releases? Do I need to revert to Xcode15 Beta8 to get Reality Composer?

I made an animation in Blender using geometry nodes that I exported to USDC file (then I used Reality Converter to convert to USDZ) and I can see the animation when viewing from the finder but does not play after importing to RCP. Any idea how I can play the animation? Or can the animation be accessed through Xcode? Thanks!

Hi! I'm trying to play video on monitor 3D model like a material. I wanna know if it's possible work. I searched about it, but I couldn't get enough information. Thank you in advance.

Hi, In the downloadable WWDC sample project "CreatingASpaceshipGame" there is an audio file named "WorkMusic.aiff", as well mentioned in the video. Info says it's PCM 4-channel Quadrophonic. Where can I find further information on how this file was authored? Was it simply exported from Logic Pro with Quadrophonic Surround settings or did it have any other specific treatment? Thanks, Axel

Hi! I wanna ask that if it's possible to make mirror material with Shader Graph in Reality Composer Pro. The mirror should reflect entities in Reality Composer Pro scene. I found that it works with SceneKit, but I'm using RealityKitContent in my project. Are there ways to solve this?

Hello! https://forums.developer.apple.com/forums/thread/762763 I read this thread, and this is similar to what I'm trying to do. I have two entities in the scene, "HandTrackingEntity", "HandScanner". "HandTrackingEntity": I put Anchoring Component, Collision Component (Trigger) here. "HandScanner": I put Behaviors Component(OnCollision), and Collision Component here. Here is the pictures how I set the components. and I set physicsSimulation property to .none. I was expecting that Timeline will be played when I put my hand(with HandTrackingEntity) on "HandScanner" entity. But it didn't work. Am I missing some steps? And I need sample codes to understand how to apply 'physicsSimulation' property. I'd appreciate it if you could let me know about it.

Reality Composer Pro question related to custom components My custom component defines some properties to edit in RCP. Simple ones work find, but SIMD3 and SIMD2 do not. I'd expect to see default values but instead I get this 0s. If I try to run this the scene doesn't load. Once I enter some values it does and build and run again it works fine. More generally, does Apple have documentation on creating properties for components? The only examples I've seen show simple strings and floats. There are no details about vectors, conditional options, grouping properties, etc. public struct EntitySpawnerComponent: Component, Codable { public enum SpawnShape: String, Codable { case domeUpper case domeLower case sphere case box case plane case circle } // These prooerties get their default values in RCP /// The number of clones to create public var Copies: Int = 12 /// The shape to spawn entities in public var SpawnShape: SpawnShape = .domeUpper /// Radius for spherical shapes (dome, sphere, circle) public var Radius: Float = 5.0 // These properties DO NOT get their default values in RCP. The all show 0 /// Dimensions for box spawning (width, height, depth) public var BoxDimensions: SIMD3<Float> = SIMD3(2.0, 2.0, 2.0) /// Dimensions for plane spawning (width, depth) public var PlaneDimensions: SIMD2<Float> = SIMD2(2.0, 2.0) /// Track if we've already spawned copies public var HasSpawned: Bool = false public init() { } }

Hey there, I am working on an app that displays environmental data using PNG color channels to represent data ranges, which gets overlayed on a map. The sampled values aren't what I'm expecting though... for example an RGB value of 0x7f0000 (R = 0.5, G = 0, B = 0) would be seen as 0.21, 0, 0 in the shader. This basically makes it unusable if I'm trying to show scientific data... I'm half wondering if I am completely misunderstanding how sampling works in RealityKit / RealityComposerPro. Anybody have any idea why it works like this? Actual result (chart labels added in photoshop): Expected: Red > 0.1 Shader Graph

"Although Xcode generates loading methods for all Reality Composer files in your Xcode project" I do not find this to be true, sadly. Does anyone have any luck or insight on how one can build just a simple MacOS app that will import a scene from a Reality File? The documentation suggests that the simple act of bringing a .Reality File in (What about .realitycomposerpro?) will generate code, but that doesn't seem to happen. The sample code (Spaceship) does not compile for MacOS. I'd really love just the most generic template of an Xcode Project that compiles with a button that pops open a scene., Like the VisionOS default immersive project.

I’m currently using the RealityKit/ObjectCaptureSession API to develop my app, and I’ve noticed that Apple’s official Reality Composer app also uses the same API. However, both my app and the Reality Composer app crash if the device doesn’t have enough storage space (approximately 4 GB free). Here is the debug log I’m seeing: Insufficient storage: required 4000000000 Switch to error state. Got error = insufficientStorage(requiredBytes: 4000000000) fromState == toState so punting transition! from=disabled toState=disabled Punting transition since states match: disabled Got error starting session! insufficientStorage(requiredBytes: 4000000000) I would like to request: A fix for the crash in the official Reality Composer app. Guidance on how to properly handle this crash or error when using the ObjectCaptureSession API in my own app. Thank you!

sample repo: https://github.com/ckse93/VideoDiffusionIssueSHowcase Repo has detailed step by step workflow. as well as screenshot, python script compute result, and parameters after running computeDiffuseReflectionUVs.py and mapping textures and reflection diffuse to objects, I noticed that reflection diffuse does not produce any color. expected result is shown below, diffused light has color

I am using RealityKit's ObjectCaptureSession API to capture objects, presenting the process with ObjectCaptureView. During the object capture session, there is default background audio that plays automatically. I noticed this same audio behavior in Apple's official Composer app, which seems to use the same API. I'd like to disable this audio in my app, but I have not been able to find any API or configuration option to do so. However, the audio persists, and I cannot find a way to turn it off. Is there an official method or workaround to disable this default audio in the ObjectCaptureSession API? Any guidance would be appreciated. Thank you!

Hello, After watching the Work with Reality Composer Pro content in Xcode, I had created the following custom component. public struct TestComponent : Component, Codable{ public var text : String = "helloWorld" public init() {} } I had registered the custom component as suggested in App.init function init() { RealityKitContent.TestComponent.registerComponent() } The custom component is decoded and realityView shows the sphere, when I load the "Scene" from realityKitContent bundle. But if I export the scene to a separate file named "test_scene.usdz" on disk and shared to the simulator and then trying to load it load in reality view causes EXC_BAD_ACCESS #0 0x0000000194c8d508 in Swift._StringObject.getSharedUTF8Start() -> Swift.UnsafePointer<Swift.UInt8> () Printing the loaded entity, shows the customComponent but when trying to load in show realityview , crashes the app immediately. Is there a way to fix it?

Looking for help on getting "On Tap" to work inside RCP for my AVP project. I can get it to work when using "on added to scene" but if I switch to "on tap", the audio will not play when attaching the audio to an entity in my scene. I'm using the same entity for the tap gesture that the audio is using for the emitter. Here is my work flow for the "on added to scene" that works correctly to help troubleshoot my non working "on tap". Behaviors: "on added to scene". action - timeline Input target: check mark enabled, allowed all Collision set to default Audio library: source mp3 file Chanel Audio: resource mp3 file above Timeline: Play Audio with mp3 file added This set up in RCP allows my AVP project to launch correctly with audio "on added to scene". But when switching behaviors to "on tap", the audio will no longer play and I can not figure out why. I've tried several different options and nothing works. Please help!

Hi I try to make a 360 stereo viewer, and I have made a ShaderGraphMaterial on Reality Composer Pro. Im trying to use that material on a inverted sphere whitch is generated in Swift. When I try to attach the material I get this error "Type of expression is ambiguous without a type annotation" Here is the code (sorry im noob =) ): import SwiftUI import RealityKit import RealityKitContent import PhotosUI struct ImmersiveView: View { @Environment(AppModel.self) var appModel var body: some View { RealityView { content in // Add the initial RealityKit content guard let skyBoxEntity = await createSkybox() else { return } content.add(skyBoxEntity) } } } private func createSkybox () async -> Entity? { var matX = try? await ShaderGraphMaterial(named: "/Root/Mat_Stereo360", from: "360Stereo.usda", in: realityKitContentBundle) let sphere = await MeshResource.generateSphere(radius:1000) let entity = await Entity() entity.components.set(ModelComponent(mesh: sphere, materials: [matX])). //ERROR HERE: Type of expression is ambiguous without a type annotation //entity.scale *= .init(x:-1, y:1, z:1) return entity } I hope someone can help me =) Best regards, Kim

Hi there! I´m trying to make a 360 image carousel in RealityView/SwiftUI with very large textures. I´ve managed to load one 12K 360 image and showing it on a inverted sphere with a ShaderMaterialGraph made in Reality Composer Pro. When I try to load the next image I get an out of memory error. The carousel works fine with smaller textures. My question is. How do I release the memory from the current texture before loading the next? In theory the garbagecollector should erase it eventually? Hope someone can help =) Thanks in advance! Best regards, Kim