I have a blender scene with a mushroom inside it, which seems to be perfectly straight aligned with the axes:
When I import it in xcode (inside a scnassets directory), although I select "always use the Y-up axis", the object seems to be rotated and placed in a wrong direction:
It seems like if SceneKit is using a different coordinate system. But unlike for obj files, there's no way to fix that when I export the files. Any suggestion?