I've an app I've been working on for quite some time now. It uses SpriteKit. The windows with the scenes in them are generated programmatically. All of a sudden, when it's up and running through XCode, the console throws out a continuous stream of errors - probably in the order of 1 per second. The main one that makes up this stream is: 2022-03-07 20:07:38.765930+0000 My*App[8461:465673] [] CurrentVBLDelta returned 0 for display 1 -- ignoring unreasonable value But others that appear slightly less frequently are: 2022-03-07 20:07:38.447800+0000 My*App[8461:465143] Metal GPU Frame Capture Enabled 2022-03-07 20:07:38.448070+0000 My*App[8461:465143] Metal API Validation Enabled 2022-03-07 20:07:38.613097+0000 My*App[8461:465640] [] [0x7f9596053820] CVCGDisplayLink::setCurrentDisplay: 1 2022-03-07 20:07:38.613415+0000 My*App[8461:465640] [] [0x7f9596053820] Bad CurrentVBLDelta for display 1 is zero. defaulting to 60Hz. 2022-03-07 20:07:38.613442+0000 My*App[8461:465640] [] [0x7f9596053800] CVDisplayLinkCreateWithCGDisplays count: 1 [displayID[0]: 0x1] [CVCGDisplayLink: 0x7f9596053820] 2022-03-07 20:07:38.613467+0000 My*App[8461:465640] [] [0x7f9596053800] CVDisplayLinkStart 2022-03-07 20:07:38.613487+0000 My*App[8461:465640] [] [0x7f9596053820] CVDisplayLink::start 2022-03-07 20:07:38.613541+0000 My*App[8461:465640] [] [0x7f9596053800] CVDisplayLinkStart 2022-03-07 20:07:38.613575+0000 My*App[8461:465640] [] [0x7f9596053820] CVDisplayLink::start 2022-03-07 20:07:38.613634+0000 My*App[8461:465671] [] [0x600000c09f10] CVXTime::reset 2022-03-07 20:07:38.613718+0000 My*App[8461:465671] [] CurrentVBLDelta returned 0 for display 1 -- ignoring unreasonable value 2022-03-07 20:07:38.639810+0000 My*App[8461:465671] [] CurrentVBLDelta returned 0 for display 1 -- ignoring unreasonable value 2022-03-07 20:07:38.639887+0000 My*App[8461:465671] [] [0x7f9596053820] CVCGDisplayLink::getDisplayTimes display: 1 -- SLSDisplayGetCurrentVBLDelta returned 0 => generating fake times 2022-03-07 20:07:38.673702+0000 My*App[8461:465653] [] [0x7f9596053820] CVCGDisplayLink::setCurrentDisplay: 1 2022-03-07 20:07:38.673748+0000 My*App[8461:465653] [] [0x7f9596053820] CVDisplayLink::stop 2022-03-07 20:07:38.673862+0000 My*App[8461:465653] [] [0x7f9596053820] Bad CurrentVBLDelta for display 1 is zero. defaulting to 60Hz. 2022-03-07 20:07:38.673883+0000 My*App[8461:465653] [] [0x7f9596053820] CVDisplayLink::start I really don't know how else to describe this. I can only imagine having to hand over the entire project as lately I've only been working on the storyboard file so how would this affect it? To be honest the only change I can see is my upgrade to OSX 12.2.1. It's definitely something to do with SpriteKit since not initialising a window with a scene in it stops the errors from showing.

GCVirtualController isn't displaying when used with SKScene class. The Virtual controllers appear but then it seems that they are obscured by the SKScene itself!? The documentation says that calling connect() will display the virtual controllers but I seem to be missing how to add the controllers to the SKScene? class GameScene: SKScene { private var _virtualController: Any? @available(iOS 15.0, *) public var virtualController: GCVirtualController? { get { return self._virtualController as? GCVirtualController } set { self._virtualController = newValue } } override func didMove(to view: SKView) { let background = SKSpriteNode(imageNamed: ".jpg") background.zPosition = -1 addChild(background) let virtualConfig = GCVirtualController.Configuration() virtualConfig.elements = [GCInputLeftThumbstick, GCInputRightThumbstick, GCInputButtonA, GCInputButtonB] virtualController = GCVirtualController(configuration: virtualConfig) virtualController?.connect() } } I've also tried adding the virtual controllers in the UIViewController but this doesn't work either.

I built a simple Swift game in SpriteKit. I have audio on the simulator but no audio or sound effects on the device. Any suggestions?

Im programmatically using SKTileMapNode. The code is C# (Xamarin.iOS) but should be readable by every Swift/ObjC developer.The problem is that the sorting of tiles in isometric projection seems to be incorrect and I cannot see why. To test, the map has 1 row and 5 columns. See the screenshot:https://dl.dropboxusercontent.com/u/111612273/SVhjD.pngThe tiles at 0|0 and 2|0 are in front of the others. The pyramid styled tile at 4|0 however, is drawn correctly in front of the one at 3|0.I'm using two simple tiles: The first one has a resolution of 133x83px and the second one is 132x131px:https://dl.dropboxusercontent.com/u/111612273/bcIvP.pngandhttps://dl.dropboxusercontent.com/u/111612273/wzCZV.pngThis is what it looks like in Tiled and what I am trying to reproduce: https://dl.dropboxusercontent.com/u/111612273/66G6p.pngThe tile map is setup and added to the scene using the following code:var tileDef1 = new SKTileDefinition (SKTexture.FromImageNamed ("landscapeTiles_014")); var tileDef2 = new SKTileDefinition (SKTexture.FromImageNamed ("landscapeTiles_036")); var tileGroup1 = new SKTileGroup (tileDef1); var tileGroup2 = new SKTileGroup (tileDef2); var tileSet = new SKTileSet (new [] { tileGroup1, tileGroup2 }, SKTileSetType.Isometric); var tileMap = SKTileMapNode.Create(tileSet, 5, 2, new CGSize (128, 64)); tileMap.Position = new CGPoint (0, 0); tileMap.SetTileGroup (tileGroup1, 0, 0); tileMap.SetTileGroup (tileGroup2, 1, 0); tileMap.SetTileGroup (tileGroup1, 2, 0); tileMap.SetTileGroup (tileGroup2, 3, 0); tileMap.SetTileGroup (tileGroup2, 4, 0); tileMap.AnchorPoint = new CGPoint (0, 0); Add (tileMap);The tile size used to initialise the tile map (128|64) looks strange to me. It really hasn't anything to do with the texture size of the tiles and unlike everywhere else in SpriteKit it doesn't seem to be using "points". However, this is the size where Tiled is giving me nicely aligned tiles and also SpriteKit is looking good, besides the sorting issue.What am I doing wrong or where am I thinking wrong?