This is effectively a fork of Johnny Chung Lee's WiiDesktopVR Wii Remote head tracking code.
Since the original code was originally uploaded without source control, the first commits to this repository were for checking in the original code into source control.
A comment that seemed helpful for people looking to replicate the demos from Johnny's original video:
if you hit 'b' it will display the stadium pic as a background. A few other keys toggle the display of the grid, targets, and lines. (source)
My intention with this repository was to adapt the original wiimote head tracking code into something that could be passed as a controller/headset to Steam/Proton on Linux for playing Beat Saber.
Because this code was originally posted in the late 2000's and was written using DirectX for Windows, there is currently work being done (in the cross-platform branch) to convert the directx-dependent code to the no-longer-developed SharpDX (which should allow it to be run on linux and then subsequently converted to something currently supported and cross-platform like OpenGL. not sure though as I havent gotten that far yet.)
I have already converted most of the stuff that is relatively easy and amounts to effectively just API changes from DirectX to sharpDX (things like method parameters being rearranged, rectangles being changed to x,y,width, height rather than position and size etc. see my commits on the cross-platform branch for details)