I have a weird situation: I have two kind of artefacts to be shown in Augmented Reality by SceneKit. Yet one kind is regularly shown, but the other is not, notwithstanding I use basically the same code and the two locationAnnotation inherit from the same superclass.
The real point is that I am short of tests to do, but for scanning the sky looking for the artefact to appear! I am following the code up to locationDelegate:

I’m working on a SceneKit project where I need to create dynamic toruses with holes that can collide with each other. I’ve tried setting up the physics bodies for these toruses using both convexHull and concavePolyhedron shapes. While I can successfully create the toruses with holes using concavePolyhedron, I’m facing an issue where these toruses do not collide with each other.