11/14/2023 0 Comments Arwing flightgear![]() ![]() FaceTracking: which views are movable ? topic on the forum (May–June 2013).Headtrack topic on the forum (January 2011–January 2017).TrackIR, EDTracker, vJoy, FreePIE, OpenTrack - headtracking topic on the forum (February 2017-August 2020).How-to: motion tracking controller using vJoy and FreePIE topic on the forum (February 2016).Setting up my flight gear? topic on the forum (May 2016).DIY "VR" headset topic on the forum (January 2020-January 2021).Opentrack topic on the forum (August 2020).Addon#List_of_Addons - LinuxTrack addon for head tracking.Often some external head tracking software will interface with FlightGear for example using a generic protocol such that the rotations and translations is read into properties that in turn are used for panning and moving the view. Often there is three or four markers grouped together with fixed relative positions that is attached to headwear or headphones.Īs FlightGear is very flexible there are many ways head tracking can be implemented. The last method is used by some of the more popular commercial products. The more expensive ones use IR cameras, either using a group of LED light markers or IR lights at the camera and reflective markers. The solutions cheapest to implement will use your web camera and will follow your face or some markers to figure out where your head is and how it is rotated. Having six DoF with goggles usually requires requires external head tracking to capture the head movements as accelerometers are too noisy and will drift. ![]() While one or two DoF may be satisfactory when you are using head tracking to pan a screen view, three or sometimes six DoF is usually wanted when using VR goggles. To be able to still see the screen when you are panning the view to directly behind, the translations usually are scaled down when head tracking is used for panning the view on a screen. While you obviously would like a VR goggle view to precisely follow your head movements, you can not do that if you want to have the view on a screen in front of you. It is the number of axis the view can be rotated or translated around or along.įor example would simple horizontal panning be 1 DoF (in essence rotation around the Z axis), while all translations and rotations would be 6 DoF (rotation around x, y and z + translation along x, y and z). Degrees of freedom (DoF) are very common measure of the capability of a head tracking solution. ![]()
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