GUI: Head not turning anymore

[chris-hld]

The latest master commit is not updating the GUI head orientation, when connected to a head tracker.
Updating the TCP interface and sound output works, it's only the GUI.

[mgeier]

I guess the reason is that I changed the trackers to manipulate the "reference offset" instead of the "reference". See "collateral changes" in #127.

Ideally the head in the GUI should show both pieces of information, but I'm not sure how this can be achieved.

For loudspeaker-based renderers, there is a little cross symbol that shows the reference offset.

[chris-hld]

Ah, yes, that might be it!
I agree with the change. Even if listeners turn their head, the scene coordinate system stays the same.
But in this case the GUI Head should reflect the "reference offset"!

[chris-hld]

BTW, there is also a little cross on top of the GUI head. So maybe it is even possible to show both?

[JensAhrens]

This cross marks the origin of the global coordinate system. It is not movable.

In qopenglplotter.cpp, there is an if/else statement:

if (_plot_listener)
{ 
    (...)
}
else
{
    (...)
    // draw cross (showing the reference offset)
    (...)
}

This would needed to be changed (it's here) for the reference offset also to be visible when a listener is apparent.

[mgeier]

I think this has been fixed in #358 and #360.

[HaHeho]

I think this has been fixed in #358 and #360.

The latest release indeed fixed such an issue with a Polhemus tracker for me.

[chris-hld]

Closing since seems to be fixed in the meantime.