I am trying to model something similar to an odometer in RealityKit, where 3D numbers scroll up or down, as they increase or decrease, within a container entity. Is there a way for an Entity to clip its children so that anything that extends beyond its dimensions is not rendered?

I am trying to use the SVGF denoiser to denoise my ray traced shadows (and also other textures later). I do get a smoothed image, but with wonky denoising. I need the depth-normal textures and motion textures for the SVGF and assume that these are badly filled in my case. However, neither in the above linked documentation nor in the WWDC19 video I find how they should be defined. I am looking to answers to: Is depth in red or alpha channel for the depth-normal texture? Are the normals in screen space? Is depth linear? Is it distance or z coordinate in view space? Or even logarithmically scaled or something else? Are the motion vectors supposed to be in pixels per frame? What is the orientation of the axis? Is y up or down? Are there are other restrictions on the formats? Also the linked code did not help me (I have not found any SVGF so far; also all the code is in Objective-C++, not Swift, but that's a different topic). So how should I fill these textures. Can someone point me to the documentation where these kinds of questions are answered?

I'm trying to pass a buffer of float2 items from CPU to GPU. In the kernel, I can provide a parameter for the buffer: device const float2* values for example. How do I specify float2 as the type for the MTL::Buffer? I managed to get the code to work by "cheating" by defining a simple class that has the same data members as a float2, but there is probably a better way. class Coord_f { public: float x{0.0f}; float y{0.0f}; }; then using code to allocate like this: NS::TransferPtr(device->newBuffer(n_elements * sizeof(Coord_f), MTL::ResourceStorageModeManaged)) The headers for metal-cpp do not appear to define vector objects like float2, but I'm doubtless missing something. Thanks.

Hi, I uptaded to the 15.2 my system. It was Turkish and I change the English for AI. But Image Playground is not working. My Playground app has been stuck at Downloading support for Image Playground now for about 4-5 days.

Hello, I want to use flattenedClone() node for the trees in my landscape and reduce the draw call. If my texture uses a jpg file the result is good. If I use a PNG with transparency there is no draw call reduction. Can I use PNGs with transparency with the flattenedClone() ? Below is the structure I'm using: for child in scene_temp.rootNode.childNodes { let newtree = tree.clone() sum_tree.addChildNode(newtree) } let sum_tree_flat = sum_tree.flattenedClone() scene.rootNode.addChildNode(sum_tree_flat) If the tree texture contains a JPG file (diffuse) I get a draw call reduction (< 200 for my complete map) as expected (but no transparency with my leaves). If I use a PNG file, my draw calls are not reduced (> 2000) but I do have my trees with my leaves in transparency. I've tried replacing tree.clone() with tree.flattenedClone() with no results. Thanks for your help. Translated with DeepL.com (free version)

Everything works fine, except when tapping the navigation Back link and returning to the previous view, the AR session inside RealityView does not terminate. The green dot camera indicator stays on, it is still scanning the environment, and if the package has audio in it, the audio will still play, albeit extremely panned on the right channel. I have no issues terminating QuickLook or ARSCNView. I have a simple NavigationLink opening the RealityView... NavigationLink(destination: MyRealityView()) { Text("Open AR") } struct MyRealityView : View { var body: some View { RealityView { content in // Create horizontal plane anchor for the content let anchor = AnchorEntity(.plane(.horizontal, classification: .floor, minimumBounds: [0.5,0.5])) let scene = await loadEntity(named: "Scene") // Add model to anchor anchor.addChild(scene!) content.add(anchor) // View Settings content.camera = .spatialTracking } placeholder: { ProgressView() } .onDisappear { //print("RealityView is disappearing. Cleanup actions here.") } .edgesIgnoringSafeArea(.all) // Activate onTap from Reality Composer Pro .gesture(TapGesture().targetedToAnyEntity().onEnded { value in _ = value.entity.applyTapForBehaviors() }) }} I have experimented with several ways of trying to close it, and I can't figure it out. I have tried State variables and custom Back buttons. I was also trying to working with pause(), but I can't seem to get that to function either. Anyone else have this issue or know of a solution? What am I missing?

I'm trying to add support to PS5 DualSense controller. when I try to use the API from here: https://developer.apple.com/documentation/gamecontroller/gcdualsenseadaptivetrigger?language=objc None of the API works, am I missed anything? The code is like this: if ( [ controller.extendedGamepad isKindOfClass:[ GCDualSenseGamepad class ] ] ) { GCDualSenseGamepad * dualSenseGamePad = ( GCDualSenseGamepad * )controller.extendedGamepad; auto funcSetEffectTrigger = []( TriggerEffectParams& params, GCDualSenseAdaptiveTrigger *trigger ) { if ( params.m_mode == TriggerEffectMode::Off ) { [ trigger setModeOff ]; NSLog(@"setModeOff trigger.mode:%d", trigger.mode ); } else if ( params.m_mode == TriggerEffectMode::Feedback ) { [ trigger setModeFeedbackWithStartPosition: 0.2f resistiveStrength: 0.5f ]; } else if ( params.m_mode == TriggerEffectMode::Weapon ) { [ trigger setModeWeaponWithStartPosition: 0.2f endPosition: 0.4f resistiveStrength: 0.5f ]; } else if ( params.m_mode == TriggerEffectMode::Vibration ) { [ trigger setModeVibrationWithStartPosition: position amplitude: amplitude frequency: frequency ]; } }; if ( L2 ) { funcSetEffectTrigger( params, dualSenseGamePad.leftTrigger ); } if ( R2 ) { funcSetEffectTrigger( params, dualSenseGamePad.rightTrigger ); } } I've also tested to add "Game Controllers" capability to Target, still not working. Can't find anything else from the document or forums. I've no idea what need to do.

I’m trying to create a CGContext that matches my screen using the following code let context = CGContext( data: pixelBuffer, width: pixelWidth, // 3456 height: pixelHeight, // 2234 bitsPerComponent: 10, // PixelEncoding = "--RRRRRRRRRRGGGGGGGGGGBBBBBBBBBB" bytesPerRow: bytesPerRow, // 13824 space: CGColorSpace(name: CGColorSpace.extendedSRGB)!, bitmapInfo: CGImageAlphaInfo.none.rawValue | CGImagePixelFormatInfo.RGBCIF10.rawValue | CGImageByteOrderInfo.order16Little.rawValue ) But it fails with an error CGBitmapContextCreate: unsupported parameter combination: RGB 10 bits/component, integer 13824 bytes/row kCGImageAlphaNone kCGImageByteOrder16Little kCGImagePixelFormatRGBCIF10 Valid parameters for RGB color space model are: 16 bits per pixel, 5 bits per component, kCGImageAlphaNoneSkipFirst 32 bits per pixel, 8 bits per component, kCGImageAlphaNoneSkipFirst 32 bits per pixel, 8 bits per component, kCGImageAlphaNoneSkipLast 32 bits per pixel, 8 bits per component, kCGImageAlphaPremultipliedFirst 32 bits per pixel, 8 bits per component, kCGImageAlphaPremultipliedLast 32 bits per pixel, 10 bits per component, kCGImageAlphaNone|kCGImagePixelFormatRGBCIF10|kCGImageByteOrder16Little 64 bits per pixel, 16 bits per component, kCGImageAlphaPremultipliedLast 64 bits per pixel, 16 bits per component, kCGImageAlphaNoneSkipLast 64 bits per pixel, 16 bits per component, kCGImageAlphaPremultipliedLast|kCGBitmapFloatComponents|kCGImageByteOrder16Little 64 bits per pixel, 16 bits per component, kCGImageAlphaNoneSkipLast|kCGBitmapFloatComponents|kCGImageByteOrder16Little 128 bits per pixel, 32 bits per component, kCGImageAlphaPremultipliedLast|kCGBitmapFloatComponents 128 bits per pixel, 32 bits per component, kCGImageAlphaNoneSkipLast|kCGBitmapFloatComponents See Quartz 2D Programming Guide (available online) for more information. Why is it unsupported if it matches the 6th option? (32 bits per pixel, 10 bits per component, kCGImageAlphaNone|kCGImagePixelFormatRGBCIF10|kCGImageByteOrder16Little)

After many former OS and Xcode updates, my Game Controller Swift code generates a "DIS-CONNECTED" MESSAGE. Mac Sequoia 15.2 Xcode 16.2 Tried to update PlayStation controller firmware on my Mac. Still no luck with Xcode and its use of a game controller with tvOS.

If I have one portal on the ceiling and one on the floor, can a tall Entity cross multiple portals at once? Will the opposing portal directions cause it to fail? No matter what I try for the crossingMode and clippingMode of the PortalComponent I can only get it to fully work for one portal at a time. I have tried flipping the normals for the crossingMode and clippingMode planes. I have also tried creating a ceiling portal plane with inverted normals. It seems like whatever Entity is passing through a portal has one portal it wants to deal with at a time and that's it. My other option is to create portals using occlusion but I prefer the simplest way.

I want to compare the colors of two model entities (spheres). How can i do it? The method i'm currently trying to apply is as follows case let .color(controlColor) = controlMaterial.baseColor, controlColor == .green { // Flip target sphere colour if let targetMaterial = targetsphere.model?.materials.first as? SimpleMaterial, case let .color(targetColor) = targetMaterial.baseColor, targetColor == .blue { targetsphere.model?.materials = [SimpleMaterial(color: .green, isMetallic: false)] // Change to |1⟩ } else { targetsphere.model?.materials = [SimpleMaterial(color: .blue, isMetallic: false)] // Change to |0⟩ } } This method (baseColor) was deprecated in swift 15.0 changes to 'color' but i cannot compare the value color to each other.👾

Hello, I am making a project in SDL, and with that I am using SDL_Image. I am doing all of this on Xcode. I've been able to initialize everything just fine, but issues spring up when I try to load an image. When I give the code a path to look for an image: Unable to load image! IMG_Error: Couldn't open [Insert image path here]: Operation not permitted I get that error. Keep in mind "Unable to load image" is a general error I put in the code should loading said image fail, the specific error which I called with IMG_GetError() is what we really need to know. I've seen before that this might occur if a program does not have full disk access. Because of this, I've tried giving Xcode full disk access, but this didn't work and I still got the same error.

Hi! I'm having issues retrieving the intrinsics matrix of camera poses for photogrammetry sessions. The camera object always seems to be nil, no matter what dataset I use. From the documentation, I can't see any indication of this issue, is there something I need to do on the code side? Or it's something related to the photo dataset? I'm on MacOS 15.2

macOS 15.2, MBP M1, built-in display. The following code produces a line outside the bounds of my clipping region when drawing to CGLayers, to produce a clockwise arc: CGContextBeginPath(m_s.outContext); CGContextAddArc(m_s.outContext, leftX + radius, topY - radius, radius, -startRads, -endRads, 1); CGContextSetRGBStrokeColor(m_s.outContext, col.fRed(), col.fGreen(), col.fBlue(), col.fAlpha()); CGContextSetLineWidth(m_s.outContext, width); CGContextStrokePath(m_s.outContext); Drawing other shapes such as rects or ellipses doesn't cause a problem. I can work around the issue by bringing the path back to the start of the arc: CGContextBeginPath(m_s.outContext); CGContextAddArc(m_s.outContext, leftX + radius, topY - radius, radius, -startRads, -endRads, 1); // add a second arc back to the start CGContextAddArc(m_s.outContext, leftX + radius, topY - radius, radius, -endRads, -startRads, 0); CGContextSetRGBStrokeColor(m_s.outContext, col.fRed(), col.fGreen(), col.fBlue(), col.fAlpha()); CGContextSetLineWidth(m_s.outContext, width); CGContextStrokePath(m_s.outContext); But this does appear to be a bug.

I facing to many lags in pubgmobile when i m playing its not running properly

Hello, I’m the developer of the “stepsquad” app. Our app uses the Game Center achievement feature, but we’ve been encountering a problem: the “Global Players” always shows 0%, even though there are friends who have already achieved these achievements. Initially, I thought it might be because the app was newly launched. However, it’s now been over two months since release, and it’s still showing 0%. If anyone has any insight into this issue, please leave a comment.

Hello, I’m the developer of the “ StepSquad” app. Our app uses the Game Center achievement feature, but we’ve been encountering a problem: the “Global Players” metric always shows 0%, even though there are friends who have already achieved these achievements. Initially, I thought it might be because the app was newly launched. However, it’s now been over two months since release, and it’s still showing 0%. If anyone has any insight into this issue, please leave a comment.

Hello, Apple! This post is a bug report for Metal driver in MacOS Sequoia. I'm working on opensource game engine and one of my users reported a bug, on "MacOS Sequoia" + "AMD Radeon RX 6900 XT".  Engine crashes, when liking a compute pipeline, with following NSError: "Compiler encountered an internal error: I" Offended shader (depth aware blur): https://shader-playground.timjones.io/27565de40391f62f078c891077ba758c On my end, compiling same shader on M1 (Sonoma) or with offline compiler doesn't reproduce the issue. Post with bug-report on github: https://github.com/Try/OpenGothic/issues/712 Looking forward for your help and driver fix ;)

End goal: to detect 3 lines, and 2 corners accurately. Trying contours but they are a bit off. Is there a way or settings in contours to detect corners and lines more accurately, maybe less an sharper edged/corner contours? Or some other API or methods please? I would love an email please ;) thank you. 2. also an overlay/scale issue

I’ve added two recurring leaderboards to my app and the user interface for the Game Center leaderboards pops up when expected and it lists the leaderboards but when you click on them it says “Have Fun With Friends” and lists some of my contacts instead of any scores. The status under Apple Connect is “Not Live” and I’m wondering how to activate them. App has been approved for external beta testing. On a related note, on my iPad it doesn’t display correctly, it says “Game Center” at the top but the rest of the UI doesn’t appear, just blackness.