RPC Correct Reflection Question (ie none PLANE). Reflect the back of a person?

Hi all

Seeing that RPC is “3D” and you can rotate the people and render different sides of them, is it possible to get a correct reflection? I mean if a person is facing and looking at the camera with a window behind them, then can I get a reflection in the window of their back instead of the same as what the camera sees from the front?

I’ve tried different settings but so far it doesn’t seem possible. But maybe I’m just missing something somewhere?

with scanline it sort of works. It is perfect if the window is perpendicular to the camera. With VRay I get “double” people both the actual person and the reflection. Any way to fix this?