Is it possible to record video without using ARSCNView?

[stayHF]

Thanks for the great work of this repo. I think the performance could be improved when we only render the scene only once.

Normally, ARSCNView do the world tracking and apply the camera transform to the scene. If we only use ARSession, not ARSCNView, and update the scene camera manually. renderer the scene to a fbo with SCNRenderer. After that，display the fbo with metal or opengles and send the fbo buffer to video recorder.

[AFathi]

@stayHF,

That's an interesting suggestion, I'll look more into it. Also, please feel free to fork the project and create a pull request if you want to implement your suggestion into ARVideoKit!