I have an algorithmically-generated SceneKit scene that I'd like to be able to export as a Collada .dae file, e.g. for use in iBooks Author. Since SceneKit can import Collada files, I thought there might be a way to export them too, but couldn't find anything in the API.
Is there an easier way of doing this short of writing my own exporter that iterates over every node/geometry etc?