This is a blender 2.8 addon to render both files needed to post a 3D photo to Facebook with one click.    The two renders are saved next to the .blend file and are named appropriately and ready to be dragged into a Facebook post as a 3D photo.


see the results here:
 https://www.facebook.com/spiraloidworkshop/posts/840799872961569?notif_id=1555793617968151&notif_t=page_post_reaction 

You can learn more about facebooks new 3D photos here:
https://www.oculus.com/blog/introducing-new-features-for-3d-photos-on-facebook/?locale=en_US