SlimeVR Feeder doesn't work well with OVR Space Calibrator

[kitlith]

The approach used in #24 to solve #20 did not take into account OVR Space Calibrator. Since we're calculating from raw space, we end up getting the offsets prior to calibration, instead of after calibration.

[kitlith]

I think there's two approaches we could take here:

• Only use static standing space for the HMD height above ground level, and send it as a separate field.
  • This simplifies everything else that interacts with steamvr, since they can just care about standing space.
  • I think this is the route I'm inclined to take, given the issues I had applying the offset in the overlay.
• Try to calculate an offset from 'current' standing space to 'static' standing space, and apply that to standing space instead of coming from raw space.
  • we'd essentially be querying what the current playspace offset is every frame, per item that needs to interact with steamvr.

[kitlith]

blinks wait, did we ever work okay with space calibrator? we switched from using raw space to using a modified raw space. why would that break space calibrator?

EDIT: it was reported as an issue with controllers -- i.e. feeder app's domain, and not that it worked previously. Updating title.

[kitlith]

I am worried that we'll still have issues if I work around it in feeder app, but someone offsets the headset to match the controllers instead of the controllers to match the headset.