We try to make viewer for models in Xcode and use SceneKit to render model. If we add COLLADA (.dae) file to Xcode, it transforms the model using scntool to c3d format (found this on the Internet). But we want to load models in runtime (we download them from server to iOS device). How can we transform .dae to this format not from Mac OS? Our server running Ubuntu, we can transform model and send it already converted to iOS devices.
Thanks a lot!
you can run scntool manually but you'll need a machine running OS X to do that. The compressed format used by SceneKit on iOS is not documented and there is no other tool that you can use to make the conversion.
来源：https://stackoverflow.com/questions/30030836/collada-transformations-in-scenekit