Tracker support in motion controller component

[mordentral]

@LokiDavison;688336

Yeah, i think it’s not using the late update code the motion controller component does.

I think the main issue is that at least the version I’m on, 4.14 is using an older open vr library that doesn’t have the enum for tracked devices in it. So they come up as invalid devices in the code. Also the motion controller code filters for anything that isn’t a controller.

Yeah I just had to add a custom component at least temporarily to my plugin to support the trackers, they come up under “Other” for tracked device type now instead of “Controller”.

The motion controller interface for SteamHMD throws out all results that are > the controller index’s so it never iterates to the trackers.

Epic needs to overhaul the SteamVRHMD class to support the trackers officially now.