VR - C++ How to get LeftAim/RightAim motion sources for motion controllers

Development Programming & Scripting C++
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1

Hi folks.

I’m trying to create a VR Character class and so far I have been able to add two motion controllers for Left & Right motion sources. However, I’m trying to find LeftAim & RightAim ones but apparently, FXRMotionControllerBase doesn’t have them.

LeftMotionController->MotionSource = FXRMotionControllerBase::LeftHandSourceId;
LeftMotionControllerAim->MotionSource = FXRMotionControllerBase::LeftHandSourceId;

Is FXRMotionControllerBase the right class or are they located somewhere else?

Also, not sure if this is completely valid for an OpenXR implementation.

Any help would be very much appreciated.

2

The OpenXR specific ones are under the OpenXRSourceNames namespace. The MotionSource property is just a FName though, so it should be possible to just pass in a string.

3

which header needed? my code doesn’t recognize this namespace.

4

My bad, looks like they are stuck in \Engine\Plugins\Runtime\OpenXR\Source\OpenXRInput\Private\OpenXRInput.cpp
Seems they are not accessible outside the file. Seems like the code uses inline FName declarations in other places.

5

Thank you very much for checking.

I just looked at the motion source names in the pop-up of MotionController component in BP view, and then used the one I want directly in C++. e.g.

LeftController->SetTrackingMotionSource(FName("LeftAim"));

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