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Comment on AR app crashes on iOS18: SlamAnchor.cpp:37 : HasValidPose()
Update: I now assume that the reason why I only saw this on app start before is that we drop some initial content here, as a tutorial. I believe that the root cause is that dropping world anchors leads to a crash. This is also consistent with the error message. We place our anchors directly in front of the user, in "thin air". Everything worked fine until iOS 17, but now the app is completely broken with iOS 18.
Sep ’24
Comment on AR app crashes on iOS18: SlamAnchor.cpp:37 : HasValidPose()
Hey, Thanks for the feedback. However, this does not seem to be a Unity issue. The app worked just fine for years like that. It's also not unusual to delay AR initialisation. Besides, I just noticed today that the problem is much worse. The app crashes as soon as it spawns new AR content. I guess it's related to dropping a world anchor. To me, it looks like a degression in iOS 18. Our app is completely unusable this way. If you want to, you can try it yourself. It's called "Marbleverse".
Sep ’24
Comment on QR codes on visionOS
I noticed that the release notes of visionOS 2.0 mention QR codes briefly: https://developer.apple.com/documentation/visionos-release-notes/visionos-2-release-notes QR Codes of version 25 and 40 can be difficult to detect. (125919605) Does that mean that QR codes are supported now, or does this mean that there is an issue detecting QR codes as image tracking images?
Jun ’24
Comment on Why is my child SwiftUI view not updating?
This approach worked in my case, although I hadn't used a State variable in the child. The original object came from an Observable, though, which was handed over from the parent to the child as a variable. This triggered no re-render on the child. After I copied the Observable variable to a Binding and handed it over like this, it worked fine. But I still don't understand why.
Apr ’24