Hi, with the default values the rotation take place but changing the value not. I bind a button to a slider action: -(IBAction)rotateXAction:(id)sender { NSLog(@"%@ \n",sender); BOOL yn = YES; _rotationX = [_sliderX intValue]; if(yn) printf("rotationX %d \n",_rotationX); // value o.k [self setNeedsDisplay:YES]; } The drawRect: will not be called. What is wrong with my code, please tell me. Uwe

My app stopped working in Mac OS Sonoma 14.0 and I quickly isolated the problem to CGContextDrawLayerAtPoint. Two issues, first of all about 1/2 the time there was no data copied (the updated CGLayer did not show up in the window). Then the app would crash iin libswiftCore.dylib after about 5 updates with a very unusual message: "Fatal error: Duplicate keys of type 'DisplayList' were found in a Dictionary. This usually means either that the type violates Hashable's requirements, or that members of such a dictionary were mutated after insertion". This behavior showed up in builds built with XCode 13 on a Mac OS Montery platform, as well as XCode 15 on Mac OS Ventura when the app was run on Sonoma. My app uses a very traditional method to create an off-screen graphics context in drawRect: - (void)drawRect:(NSRect)dirtyRect { // Obtain context from the current NSGraphicsContext ... viewNSContext = [NSGraphicsContext currentContext]; viewCGContext = (CGContextRef)[viewNSContext graphicsPort]; drawingLayer = CGLayerCreateWithContext(viewCGContext, size, NULL); So the exact details of the off-screen drawing area were based upon the characteristics of the window being drawn to. Fortunately the work-around was very easy. By creating a custom CGBitmapContext everything was resolved. My drawing requirements are very basic, so a simple 32-bit RGB off-screen context was adequate. colorSpaceRef = CGColorSpaceCreateDeviceRGB(); bitMapContextRef = CGBitmapContextCreate(NULL, (int) rintf(size.width), (int) rintf(size.height), 8, 0, colorSpaceRef, kCGImageAlphaNoneSkipLast); drawingLayer = CGLayerCreateWithContext(bitMapContextRef, size, NULL); Once I changed to a bitmap offscreen context, problem resolved. In my case I verified that the portion of the window that was updated with the CGContextDrawLayerAtPoint was indeed restricted to the dirty part of the view rectangle, at least in Sonoma 14.5. Hope this helps someone else searching for the issue, as I found nothing in the Forums or online.

Let's say the type of project doesn't work well by using the LSApplicationCategoryType property in Info.plist. How can I trigger it via code in MacOS?

I rewrite an old project since OpenGL is deprecated and the downgrade to High Sierra goes with the lost of the old project. Here is the drawRect: - (void)drawRect:(NSRect)dirtyRect { [super drawRect:dirtyRect]; if(backgroundColor == 1) glClearColor(0.95f, 1.0, 1.0f, 1.0); else glClearColor(0.0f, 0.0f, 0.0f, 1.0f); glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glLoadIdentity(); glTranslatef(0.0 ,0.0, -10.0); // After mistake I wrote PushMatrix() glTranslatef(-0.01 ,-0.01, -10.0); // Screen Shot 0 // glTranslatef(-0.25 ,-0.25, -10.0); Screen Shot 1 glLineWidth(1.0); glRotated(rotationX, 1, 0, 0); glRotated(rotationY, 0, 1, 0); glCallList(axes); // After mistake I wrote PopMatrix() // Axes Vertices of xx,y,z are 1.0 // With vertices +/-0.99 nothing is drawn [self glError]; [self.openGLContext flushBuffer]; } I hope you Accept my Text and hope you can help me ! Mit freundlichen Grüßen Uwe Screen Shot 0 Screen Shot 1

So I have a class that does the selection but what I get back is a total mess. Can anyone help me with the code or possibly point me at an example class that performs a magic wand selection like in photoshop? Below is my current Code but I've also attempted to use metal and I've gotten an identical result in the same amount of time var red1: CGFloat = 0 var green1: CGFloat = 0 var blue1: CGFloat = 0 var alpha1: CGFloat = 0 selectedColor.getRed(&red1, green: &green1, blue: &blue1, alpha: &alpha1) var red2: CGFloat = 0 var green2: CGFloat = 0 var blue2: CGFloat = 0 var alpha2: CGFloat = 0 pixelColor.getRed(&red2, green: &green2, blue: &blue2, alpha: &alpha2) let tolerance = CGFloat(tolerance) return abs(red1 - red2) < tolerance && abs(green1 - green2) < tolerance && abs(blue1 - blue2) < tolerance && abs(alpha1 - alpha2) < tolerance } func getPixelData(from image: UIImage) -> [UInt8]? { guard let cgImage = image.cgImage else { return nil } let width = Int(cgImage.width) let height = Int(cgImage.height) let bytesPerPixel = 4 let bytesPerRow = bytesPerPixel * width let bitsPerComponent = 8 let bitmapInfo = CGImageAlphaInfo.premultipliedLast.rawValue var pixelData = [UInt8](repeating: 0, count: width * height * bytesPerPixel) guard let context = CGContext(data: &pixelData, width: width, height: height, bitsPerComponent: bitsPerComponent, bytesPerRow: bytesPerRow, space: CGColorSpaceCreateDeviceRGB(), bitmapInfo: bitmapInfo) else { return nil } context.draw(cgImage, in: CGRect(x: 0, y: 0, width: width, height: height)) return pixelData } func performMagicWandSelection(inputImage: UIImage, selectedColor: UIColor, tolerance: Float) -> UIBezierPath? { guard let pixelData = getPixelData(from: inputImage) else { return nil } let width = Int(inputImage.size.width) let height = Int(inputImage.size.height) let bytesPerPixel = 4 let path = UIBezierPath() var isDrawing = false for y in 0..<height { for x in 0..<width { let index = (y * width + x) * bytesPerPixel let pixelColor = UIColor( red: CGFloat(pixelData[index]) / 255.0, green: CGFloat(pixelData[index + 1]) / 255.0, blue: CGFloat(pixelData[index + 2]) / 255.0, alpha: CGFloat(pixelData[index + 3]) / 255.0) if colorMatches(selectedColor: selectedColor, pixelColor: pixelColor, tolerance: tolerance) { let point = CGPoint(x: x, y: y) if !isDrawing { path.move(to: point) isDrawing = true } else { path.addLine(to: point) } } else { if isDrawing { path.close() isDrawing = false } } } } if isDrawing { path.close() } return path }

I am trying to store usdz files with SwiftData for now. I am converting usdz to data, then storing it with SwiftData My model import Foundation import SwiftData import SwiftUI @Model class Item { var name: String @Attribute(.externalStorage) var usdz: Data? = nil var id: String init(name: String, usdz: Data? = nil) { self.id = UUID().uuidString self.name = name self.usdz = usdz } } My function to convert usdz to data. I am currently a local usdz just to test if it is going to work. func usdzData() -> Data? { do { guard let usdzURL = Bundle.main.url(forResource: "tv_retro", withExtension: "usdz") else { fatalError("Unable to find USDZ file in the bundle.") } let usdzData = try Data(contentsOf: usdzURL) return usdzData } catch { print("Error loading USDZ file: \(error)") } return nil } Loading the items @Query private var items: [Item] ... var body: some View { ... ForEach(items) { item in HStack { Model3D(?????) { model in model .resizable() .scaledToFit() } placeholder: { ProgressView() } } } ... } How can I load the Model3D? I have tried: Model3D(data: item.usdz) Gives me the errors: Cannot convert value of type '[Item]' to expected argument type 'Binding<C>' Generic parameter 'C' could not be inferred Both errors are giving in the ForEach. I am able to print the content inside item: ForEach(items) { item in HStack { Text("\(item.name)") Text("\(item.usdz)") } } This above works fine for me. The item.usdz prints something like Optional(10954341 bytes) I would like to know 2 things: Is this the correct way to save usdz files into SwiftData? Or should I use FileManager? If so, how should I do that? Also how can I get the usdz from the storage (SwiftData) to my code and use it into Model3D?

Hi everyone, Last month, my endless runner game set in a crypto world was rejected for using the Bitcoin logo, labeled as a "Copycats" issue. We were asked to remove the logo and Bitcoin prices, even though the Bitcoin logo is public domain. I noticed other Bitcoin games on the AppStore were updated recently without any problems. I couldn't find any rules against using Bitcoin in the guidelines. When I appealed, they just told me to remove it again but didn't explain why. We've updated our game several times before, and only this small bug fix was rejected. Any advice on what are the next step? Anyone experienced this? Cheers

Hi everyone, This happens with Xcode 15.3 (15E204a) and visionOS 1.1.2 (21O231). To reproduce this issue, simply create a new VisionOS app with Metal (see below). Then simply change the following piece of code in Renderer.swift: func renderFrame() { [...] // Set the clear color red channel to 1.0 instead of 0.0. renderPassDescriptor.colorAttachments[0].clearColor = MTLClearColor(red: 1.0, green: 0.0, blue: 0.0, alpha: 0.0) [...] } On the simulator it works as expected while on device it will show a black background with red jagged edges (see below).

Working on a vision OS app. I've noticed that even when castsShadow is false, performance goes down the drain when there are more than a few dozen entities that have GroundingShadowComponent. I managed to hard crash the Vision Pro with about 200 or so entities that each had two ModelEntities with GroundingShadowComponent attached but set to castShadows = false. My solution is to add and remove the GroundingShadowComponent from entities as needed, but I thought maybe someone at Apple might want to look into this. I don't expect great performance with that many entities casting shadows, but I'd think turning the shadow off would effectively disable the component and not incur a performance penalty.

I use ScreenCaptureKit, CoreVideo, CoreImage, CoreMedia frameworks to capture screenshots on macOS 14.0 and higher. Example of creating CGImageRef: CVImageBufferRef cvImageBufferRef = ..; CIImage* temporaryImage = [CIImage imageWithCVPixelBuffer:cvImageBufferRef]; CIContext* temporaryContext = [CIContext context]; CGImageRef imageRef = [temporaryContext createCGImage:temporaryImage fromRect:CGRectMake(0, 0, CVPixelBufferGetWidth(cvImageBufferRef), CVPixelBufferGetHeight(cvImageBufferRef))]; I have the next results of profiling with XCode Instruments Memory Leaks & Allocations: there is constantly increasing memory usage, but no memory leaks are detected, and there are many calls to create IOSurface objects, that have been never released. The most part of memory - All Anonymous VM - VM: IOSurface. The heaviest stack trace: [RPIOSurfaceObject initWithCoder:] [IOSurface initWithMachPort:] IOSurfaceClientLookupFromMachPort I don't have any of IOSurface objects created by myself. There are low-level calls to it. In Allocation List I can see many allocations of IOSurface objects, but there are no info about releasing it. Due to this info, how can I release them to avoid permanent increasing memory consumption?

Hi all, I am trying to measure the performce of my video game in iOS platform. After launching the debugger and caputre GPU workload (with "frame" selected as scope), I can not do performance profiling. The error message is: "Failed to enable shader profiler. (516)". And if I export the GPU trace and reopen it, the Xcode can not find any compatible devices connected. However, the same device used for capturing is connected. Device informations are: Mac device: MacBook Air M2, 2022 Mac OS version: Sonoma 14.4 XCode version: 15.2 (15C500b) mobile device: iPhone 13 Pro Max iOS version: 15.0 GPU performance counter can be performed using the same mobile device in my colleague's Mac. So I think there might be something wrong with my Xcode.

Looking for info on the best way to convert a MTLTexture to SKTexture. I am migrating a project where a SpriteKit scene is rendered in an SKView - and relies heavily on SKView.texture(from: SKNode) API I am trying to migrate to an SKRenderer based SpriteKit scene - and wondering the best way to grab an SKTexture from an SKNode when rendered in a MTKView instead of SKView?

when i installed Game porting toolkit 1.1, i got an error such as below: error: assignment to 'DWORD64' {aka 'long long unsigned int'} from 'PVOID' {aka 'void *'} makes integer from pointer without a cast [-Wint-conversion] anybody who knows how to solve it

Does anyone know what this might be? /private/tmp/game-porting-toolkit-20240516-2293-dagdsr/wine/dlls/wow64cpu/cpu.c:356:18: error: assignment to 'DWORD64' {aka 'long long unsigned int'} from 'PVOID' {aka 'void '} makes integer from pointer without a cast [-Wint-conversion] 356 | context->Rsp = NtCurrentTeb()->TlsSlots[2]; / WOW64_TLS_WINEHYBRID_RESERVED_R14 */ | ^ make: *** [dlls/wow64cpu/cpu.cross.o] Error 1 make: *** Waiting for unfinished jobs.... Path: /usr/local/Homebrew/Library/Taps/apple/homebrew-apple/Formula/game-porting-toolkit.rb ==> Configuration HOMEBREW_VERSION: 4.3.0 ORIGIN: https://github.com/Homebrew/brew HEAD: 8378cc825d83acffd125fb0fec041793df378a57 Last commit: 3 days ago Core tap JSON: 17 May 05:28 UTC Core cask tap JSON: 17 May 05:28 UTC HOMEBREW_PREFIX: /usr/local HOMEBREW_CASK_OPTS: [] HOMEBREW_MAKE_JOBS: 10 Homebrew Ruby: 3.1.4 => /usr/local/Homebrew/Library/Homebrew/vendor/portable-ruby/3.1.4/bin/ruby CPU: 10-core 64-bit westmere Clang: 15.0.0 build 1500 Git: 2.39.3 => /Library/Developer/CommandLineTools/usr/bin/git Curl: 8.4.0 => /usr/bin/curl macOS: 14.4.1-x86_64 CLT: 15.1.0.0.1.1700200546 Xcode: 15.1 => /Users/raiderpig/Downloads/Xcode.app/Contents/Developer Rosetta 2: true

Hi, in this WebGPU example: https://skal65535.github.io/curl/index_bug_safari.html the lighting is wrong compared to Chrome's reference version. I narrowed the problem to the uniform value 'params.specular' at line 515 not being equal to the expected value 1.2f. The value is set a line at line 1078 in the uniform buffer. Platform: MacBook M1 Pro Sonoma 14.4.1 (23E224) Safari Technology Preview: Release 194 (Safari 17.4, WebKit 19619.1.11.111.2) Works ok with Chrome 124.0.6367.156 (Official Build) (arm64).

Hi, I am developing Cordova apps/games with in-app purchase products as well as an initial product as non-paid (Free) tier: New users will be able to play freely for a set of games as default at the beginning. Then, if they would like to have more games with different set of attributes or themes, they can add more games with in-app purchases. It is similar to a game called Subway Surfers in App Store I would play in the past. A new player initiates games as Free Tier. After, let us say 3 games, the user is asked if he/she would like to have more games to play with different scenes/themes in different Tiers, in addition to their disposal: Tier 1, Tier 2 and Tier 3. For example Tier 1 adds 3 more games into the Free Tier games so they can play 6 games in the set;Tier 2 add 6 more games and so 9 games they can play and so on. Each individual game in their set is a variant of others in differing Tiers. If they don't wish and play Free Tier games, they may play them too, with limited set of themes but infinite times. If a user chooses a tier, let us say Tier 1, and when they play 6 games, they are asked if they would like advance to Tier 2 or Tier 3. If they choose Tier 2, as they complete the respective games they will be asked for Tier 3. However, if they don't wish to advance, again they can play current Tier games as many times as they wish. It is like non-subscription apps then converted to subscription-based ones. In App Store Connect, I created a number of products for in-app purchases for an app. How I can deliver this Free Tier games in the app and let users try it and allow them to choose in-app purchase products available in AppStore Connect. I would appreciate response and support. Best Lexxyacc

I am trying to build a website where I would like to render the USDZ 3D model on the browser without the AR feature. The user should be able to interact with the 3D model using a pointing device (mouse). If the user wants to see the 3D model in AR she/he can do so by loading the page on a compatible device where the 3D model can be projected in AR. I am looking for an answer to how to display the USDZ 3D model on the browser without the AR feature.

I have a unity scene which i have created for vision pro and i have also created a biomatric authentication application for vision os using Xcode and swift. What i want to do is call unity scene after the authentication has taken place form the xcode. now i have seen medium post but it only shows how we can do that for apps, I am not bale to do that for vision Pro I have followed this post : https://medium.com/mop-developers/launch-a-unity-game-from-a-swiftui-ios-app-11a5652ce476 All this i am doing because as far as i know Apple vision pro is not currently supporting optic id authentication with unity's polyspatial plugin. Any help on this will be appreciated. Thank you in advace.

Hi, Since iOS 17, when setting weight on a SCNMorpher, the normals become completely wrong. As you can see below it only happens when there are vertices along an edge. Has anyone encountered that problem and found a solution? Thanks Reported: FB13798652

can i use the es3.1 api in code?