I'm trying to build a project with a moderately complex Reality Composer Pro project, but am unable to because my Mac mini (2023, 8GB RAM) keeps running out of memory. I'm wondering if there are any known memory leaks in realitytool, but basically the tool is taking up 20-30GB (!) memory during builds. I have a Mac Pro for content creation, which is why I didn't go for more RAM on the mini – it was supposed to just be a build machine for Apple Silicon compatibility, as my Pro is Intel. But, I'm kinda stuck here. I have a scene that builds fine, but any time I had a USD – in this case a tree asset – with lots of instances, or a lot of geometry, I run into the memory issue. I've tried greatly simplifying the model, but even a 2MB USD is resulting in the crash. I'm failing to see how adding a 2MB asset would cause the memory of realitytool to balloon so much during builds. If someone from Apple is willing to look, I can provide the scene – but it's proprietary so I can't just post it publicly here.

Help!!!

When I distribute a app that includes Apple Unity plugin, I got an error of asset validation failed. The bundle 'Payload/{app name}/Frameworks/AppleCoreNative.framework' is missing plist key. The Info.plist file is missing the required key: CFBundleShortVersionString. Does anyone get this?

I'm trying to get a similar experience to Apple TV's immersive videos, but I cannot figure out how to present the AVPlayerViewController controls detached from the video. I am able to use the same AVPlayer in a window and projected on a VideoMaterial, but I can't figure out how to just present the controls, while displaying the video only in the 3D entity, without having a 2D projection in any view. Is this even possible?

My MacBook Pro is M3 max, running macOS 14.4.1 (23E224), with Xcode 15.3 and Command_Line_Tools_for_Xcode_15.3 installed. When I tried to execute "brew -v install apple/apple/game-porting-toolkit", it reported the following error. Error: apple/apple/game-porting-toolkit 1.1 did not build Logs: /Users/yuanmouren/Library/Logs/Homebrew/game-porting-toolkit/00.options.out /Users/yuanmouren/Library/Logs/Homebrew/game-porting-toolkit/01.configure /Users/yuanmouren/Library/Logs/Homebrew/game-porting-toolkit/01.configure.cc /Users/yuanmouren/Library/Logs/Homebrew/game-porting-toolkit/02.make /Users/yuanmouren/Library/Logs/Homebrew/game-porting-toolkit/wine64-build If reporting this issue please do so to (not Homebrew/brew or Homebrew/homebrew-core): apple/apple I found the following error reasons in the console. /private/tmp/game-porting-toolkit-20240414-2133-st99bv/wine/dlls/crypt32/unixlib.c:629:11: error: unknown type name 'SecTrustSettingsDomain' const SecTrustSettingsDomain domains[] = { ^ /private/tmp/game-porting-toolkit-20240414-2133-st99bv/wine/dlls/crypt32/unixlib.c:630:9: error: use of undeclared identifier 'kSecTrustSettingsDomainSystem' kSecTrustSettingsDomainSystem, ^ /private/tmp/game-porting-toolkit-20240414-2133-st99bv/wine/dlls/crypt32/unixlib.c:631:9: error: use of undeclared identifier 'kSecTrustSettingsDomainAdmin' kSecTrustSettingsDomainAdmin, ^ /private/tmp/game-porting-toolkit-20240414-2133-st99bv/wine/dlls/crypt32/unixlib.c:632:9: error: use of undeclared identifier 'kSecTrustSettingsDomainUser' kSecTrustSettingsDomainUser ^ /private/tmp/game-porting-toolkit-20240414-2133-st99bv/wine/dlls/crypt32/unixlib.c:640:18: warning: this function declaration is not a prototype [-Wstrict-prototypes] status = SecTrustSettingsCopyCertificates(domains[domain], &certs); ^ /private/tmp/game-porting-toolkit-20240414-2133-st99bv/wine/dlls/crypt32/unixlib.c:641:23: error: use of undeclared identifier 'noErr' if (status == noErr) ^ /private/tmp/game-porting-toolkit-20240414-2133-st99bv/wine/dlls/crypt32/unixlib.c:647:31: warning: this function declaration is not a prototype [-Wstrict-prototypes] if ((status = SecItemExport(cert, kSecFormatX509Cert, 0, NULL, &certData)) == noErr) ^ /private/tmp/game-porting-toolkit-20240414-2133-st99bv/wine/dlls/crypt32/unixlib.c:647:51: error: use of undeclared identifier 'kSecFormatX509Cert' if ((status = SecItemExport(cert, kSecFormatX509Cert, 0, NULL, &certData)) == noErr) ^ /private/tmp/game-porting-toolkit-20240414-2133-st99bv/wine/dlls/crypt32/unixlib.c:647:95: error: use of undeclared identifier 'noErr' if ((status = SecItemExport(cert, kSecFormatX509Cert, 0, NULL, &certData)) == noErr) ^ 2 warnings and 7 errors generated. make: *** [dlls/crypt32/unixlib.o] Error 1 make: *** Waiting for unfinished jobs.... How should I resolve this issue?

Is it possible to set the header include paths when compiling a metal library from source at runtime? I'm dynamically generating kernel source that I'm compiling at runtime. I want to include some functions I have defined in a header. If I was doing online computation, I can specify include paths using -I /path/to/include using the command. xcrun metal -c -I /path/to/include example.metal -o example.air However when I'm online, it doesn't appear possible to define a header search path. MTLCompileOptions *options = [MTLCompileOptions new]; options.fastMathEnabled = NO; library = [device newLibraryWithSource:kernel_source options:options error:&error]; Is there a way to specify a header search path using newLibraryWithSource?

Where do I start with this error? I am using the Metal Debugger and have.a bunch of stuck command buffers. how do I look at the command buffers to see the errors? My suspicion is that the cause is some sort of memory leak. Not having access to the source for Metal leaves me stuck. The following message shows up in the logging pane of the execution. Execution of the command buffer was aborted due to an error during execution. Ignored (for causing prior/excessive GPU errors) (00000004:kIOGPUCommandBufferCallbackErrorSubmissionsIgnored) Type: Error | Timestamp: 2024-04-11 14:16:13.464336-05:00 | Library: Metal | Subsystem: Metal | Category: Default | TID: 0x2a0b8c I just need some guidance

Hello, As stated in the title, we implemented the GameKit unity package. We did a lot of testing and never encountered any issue related to the authentication until now, andwe identified that the device with the issue was Intel. The configurations and provisioning profile used are correctly set. I was wondering if any of you encountered this issue or had an idea how to debug this? Thanks!

The transparency in reality kit is not rendered properly from specific ordinal axes. It seems like it is a depth sorting issue where it is rejecting some transparent surfaces when it should not. Some view directions relative to specific ordinal axes are fine. I have not narrowed down which specific axes is the problem. This is true across particle systems and/or meshes. It is very easy to replicate this issues using multiple transparent meshes or particle systems. In the above gif you can see the problem in multiple instances, the fire and snow particles are sorted behind the terrain, which has transparency since it is a procedural blend of grass, rock, and ice, but it is correctly sorted in front of the opaque materials such the rocks and wood. In the above gif, it is two back to back grid meshes (since dual sided rendering is not supported) that have a custom surface shader to animate the mesh in a wave and also apply transperency. You can see in the distance, where the transparency seems to be rendered/overlapped correctely, but at the overlap approaches the screen (and crosses an ordinal axes) it renders black for the transparent portion of the surface, when the green of the mesh that is behind should be rendered. This is a blocking problem for the development of this demo.

I have a two-level view-based NSOutlineView, employing a data-source and delegate. It is not populated by binding. My code is all ObjC, and my problem persist since MacOS 10.11 to the current MacOS 14.4.x Because of some specific visual issue, I use a very simple subclass of NSTableRowView, which has only this: @implementation MYRowView - (void)drawRect:(NSRect)dirtyRect { self.emphasized = NO; // this affects the complicated color scheme for selection - will not use the "alternateColor" for drawing, but rather the "secondary color" - who knows what it is. This way our texts and icons and progress do NOT disappear on selected rows. [super drawRect:dirtyRect]; } @end And then later, in my NSOutlineView delegate: -(NSTableRowView *)outlineView:(NSOutlineView *)outlineView rowViewForItem:(id)item { return [OITRowView new]; } There are, other more complicated @interface OITOutlineCellView : NSTableCellView That I makeViewWithIdentifier:owner: and populate in response to NSOutlineView - (NSView *)outlineView:(NSOutlineView *)outlineView viewForTableColumn:(NSTableColumn *)tableColumn item:(id)item { Now I noticed that after adding several items (top level) with some thousands sub-level items to my outline-view, and then REMOVING them and reloading all data - my app's memory is ever increasing When I used the memory graph feature in Xcode debugger - I found a huge number (actually identical to the maximum number of rows) - all of the class MYRowView. Interestingly enough - none of my cell-views remained in memory. Now I verified - my data source reported zero items, the UI looks empty, and all functions as expected - except for this "leak" of MYRowView objects. As you can see in the code (copied exactly from my app) I only create them - and return them to the OS - I never hold any reference to these objects. So.... What Am I doing wrong, and what can I do to alleviate the issue?? The methods [NSOutlineView reloadItem:reloadChildren:] and [NSTableView reloadData] are documented to "release all related views" -- but obviously they DONT. my app gets to ~300 MB (started at 20MB) with about 7500 rows Idea anyone? What to check? what to try?

I'm brand new to Metal. I've googled, but can't get the right answer to come up. (Thanks, unhelpful ChatGPT generated answers polluting everything, but I digress...) Ultimately, I'm trying to figure out how to use Metal to render 3D DICOM data on iOS specifically. If you're not familiar with DICOM, let's just say I've got a whole stack of CT image slices. Or to get really simple, I've got a cube of voxel values with differing values at each voxel coordinate. Where do I even start in Metal to render something like this? (I was trying to get the VTK toolkit compiled for iOS, which uses OpenGL, but that appears to be a dead end. And besides, Metal is supposed to be so much better.) Thanks for any tips/leads/suggestions/general pointers.

Hi! I have a new game and I have setup the leaderboards and achievements in App Store Connect but all of them are "not live" and in console I see this warning: "No AchievementDescription could be found for Achievement with ID: {my_ID}" I did not do a fresh Game Center setup for a long time, but is there any way to test if achievements and leaderboards are working for nonreleased game? Thank you!

I wanted to show a progress of a certain part of the game using an entity that looks like a "pie chart", basically cylinder with a cut-out. And as progress is changed (0-100) the entity would be fuller. Is there a way to create this kind of model entity? I know there are ways to animated entities, warp them between meshes, but I was wondering if somebody knows how to achieve it in a simplest way possible? Maybe some kind of custom shader that would just change how the material is rendered? I do not need its physics body, just to show it. I know how to do it in UIKit and classic 2d UI Apple frameworks but here working with model entities it gets a bit tricky for me. Here is example of how it would look, examples are in 2d but you can imagine it being 3d cylinders with a cut-out. Thank you!

The Drawing fully immersive content using Metal guide describes how to use Metal for visionOS immersive experiences, but seemingly requires swift to bring up the required CompositorLayer. @main struct MyApp: App { var body: some Scene { ImmersiveSpace(id: "MyContent") { CompositorLayer { layerRenderer in let renderThread = Thread { let engine = myEngineCreate(layerRenderer) myEngineRenderLoop(engine) } renderThread.name = "Render Thread" renderThread.start() } } } The ImmersiveSpace scene can presumably be replaced with a call to [UIApplication.sharedApplication activateSceneSessionForRequest:[UISceneSessionActivationRequest requestWithRole:UISceneSessionRoleImmersiveSpaceApplication] errorHandler:nil] But is there a replacement for CompositorLayer? Or some other way to produce a cp_layer_renderer? Perhaps it would be possible to write a small swift helper for this, but given the swift interface for CompositorLayer how would that be tied to an existing UIScene as created above? @available(visionOS 1.0, *) public struct CompositorLayer : SwiftUI.ImmersiveSpaceContent { public init(configuration: any _CompositorServices_SwiftUI.CompositorLayerConfiguration = .default, renderer: @escaping (CompositorServices.LayerRenderer) -> Swift.Void) public var body: Swift.Never { get } public typealias Body = Swift.Never }

Hello all We would like to use AMD's FidelityFx Downsampler in our custom game engine and we are having difficulties to correctly implement it for Metal due to its use of the globallycoherent keyword. We have done extensive search online but have not succeeded in finding an answer. What we have found is the largely undocumented 'volatile' keyword, so we were hypothesising that marking a texture with 'volatile' (which implies 'device volatile' since it's a texture) could have the same effect but we are far from convinced it would work. Does anyone have insights into this?

I am trying to implement a way to rotate a 3D model around its y axis, but this doesn't seem to work. What am I missing? The scene only contains one model entity. @State private var rotateBy:Double = 0.0 RealityView { content in do { let entity = try await Entity.init(named: "VinylScene", in: realityKitContentBundle) entity.scale = SIMD3<Float>(repeating: 0.6) content.add(entity) } catch { ProgressView() } } .gesture( DragGesture(minimumDistance: 0.0) .targetedToAnyEntity() .onChanged { value in let location3d = value.convert(value.location3D, from: .local, to: .scene) let startLocation = value.convert(value.startLocation3D, from: .local, to: .scene) let delta = location3d - startLocation rotateBy = Double(atan(delta.x * 200)) } )

Hello. I have a model of a CD record and box, and I would like to change the artwork of it via an external image URL. My 3D knowledge is limited, but what I can say is that the RealityView contains the USDZ of the record, which in turn contains multiple materials: ArtBack, ArtFront, PlasticBox, CD. How do I target an artwork material and change it to another image? Here is the code so far. RealityView { content in do { let entity = try await Entity.init(named: "VinylScene", in: realityKitContentBundle) entity.scale = SIMD3<Float>(repeating: 0.6) content.add(entity) } catch { ProgressView() } }

I'm trying to add an image in UIImage format to SpritKit's SKSpriteNode. When converting a UIImage into a texture to SKTexture and adding it to SKSpriteNode, the image that takes into account the orientation of the image held by the UIImage is not displayed on the screen. I tried the code below, but the result is identical. Code1: let image: UIImage? let texture: SKTexture = SKTexture(image: image!) ver imageNode = SKSpriteNode(texture: texture) Code2: let image: UIImage? let cgImage = image?.cgImage let ciImage = CIImage(cgImage: cgImage!) let orientedImage = UIImage(cgImage: CIContext(options: nil).createCGImage(ciImage, from: ciImage.extent)!, scale: 0, orientation: image!.imageOrientation) let texture: SKTexture = SKTexture(image: orientedImage) ver imageNode = SKSpriteNode(texture: texture) Code3: let image: UIImage? guard let cgImage = image?.cgImage else { return } let orientedImage = UIImage(cgImage: cgImage, scale: image!.scale, orientation: .up) let texture = SKTexture(image: orientedImage) ver imageNode = SKSpriteNode(texture: texture) Is there a way to ensure that the image orientation is taken into account when displayed?

App Store Connect says that the name for my app is taken, but when I search on the App Store, there aren't any apps with that name. Is this a bug? Is there a way to contact Apple so that we can claim the name we'd like? Thank you!

Hi, I'm struggling a little with the Shader Graph in Reality Composer Pro. Doing something simple like linearly interpolating between two colors has me searching through nodes without any luck. Is there a node comparable to the lerp node in Unity? And if so, what is it called?