Just wondering. Not a deal breaker but it would be cool.
Check this forum link & or use search function.
http://community.openmr.ai/t/diy-positional-tracking/1851?u=heliosurge
I haven’t explored using freetrack.
The above link has a variety of forum links & more diy tracking links.
Use Opentrack with piplay in extended mode.
In opentrack, sethe input to Oulus runtime 0.4.2, and output to free track 2.0 enhanced (click the tool icon next to freetrack and set the select interface for your desired effect.
I use this often with IL2 Cod for track ir emulation. Dogfighting in vr is great.