I observed a very strange behavior where a copied SCNGeometry doesn’t work immediately. I had to wait one run-loop (DispatchQueue.main.async) in order to make it work. Is it a bug or am I doing something wrong?

I observed a very strange behavior where a copied SCNGeometry doesn’t work immediately. I had to wait one run-loop (DispatchQueue.main.async) in order to make it work. Is it a bug or am I doing something wrong?

I need to add 2 euler angles together.

I have a 3D model that contains 3 geometries, as highlighted below

I need to set a SCNNode’s collisionBitMask to the default value, which is all bit set.

I need to set a SCNNode’s collisionBitMask to the default value, which is all bit set.

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.