How do actions work ?

[gabr1gus]

I am having some problems to implement a osgXR action https://www.khronos.org/registry/OpenXR/specs/1.0/html/xrspec.html#XR_EXT_eye_gaze_interaction
I could not understand how I am supposed to go about implementing it, I tried something like:

actionSet = new osgXR::ActionSet(manager, "user_intent", "User Intent");
actionPose = new osgXR::ActionPose(actionSet, "gaze_pose", "Gaze pose");
interactionProfile = new osgXR::InteractionProfile(manager, "ext", "eye_gaze_interaction");
subAction = new osgXR::Subaction(manager, "/user/eyes_ext/input/gaze_ext/pose");

actionPose->addSubaction(subAction);
interactionProfile ->suggestBinding(actionPose, "/user/eyes_ext/input/gaze_ext/pose");
actionSet->activate(subAction);

syncActionSetup();
actionSet->activate(subAction);
manager->syncSettings()
manager->update()

and then tried to get the location with:

osgXR::ActionPose::Location location = action->getValue(subAction);

however, the location is always empty.

I also made a minor change to the osgXR code to enable the XR_EXT_eye_gaze_interaction extension that is needed for this action as I couldn't find a way to enable extensions without doing so.

What am I missing ?

[amalon]

Hi.
OTOH I think the subaction path would be just "/user/eyes_ext"? (its mentioned as the "user path" in the spec)

I'm not opposed to adding the ability to enable arbitrary extensions if its useful.

[amalon]

hi @gabr1gus. Did you manage to get the eye gaze working?