Hello Michael,
If I understand correctly, there are two parts to your question:
- Camera Overlays
- AR Support
Camera Overlays are possible with our SDK and we have a sample scene that can be found in LeiaLoft/Modules/AlphaBlending. The supporting documentation can be found here: Multiple Cameras - Developer Docs
AR is not supported by the Leia SDK at this time. Detail can be found here.
Hope this was helpful!
Joe