Question regarding getEuler and it uses

[Jeff]

One thing to keep in mind is that window.pickRect will return all nodes in the specified area, whether or not they are obscured by other models. So it may return a cue that is not visible but directly behind a wall that is.

[bbb]

Thanks Jeff!
Is there a way to get that information from the tracker? I mean if there is a way to get the angle participants are looking at, at any given time and to know from that which cues they are looking at?
Does the the <hmd>.getSensor can help me with that? or the only suggestion is the window.pickRectangle as you suggested earlier?

[bbb]

One more question, how do i know which coordinates to put to my rectangle?