I'm using a motion capture system to track both the position and orientation of the DK2 and I'm wondering if there is a good way to disable orientation tracking with the 0.4.3 SDK? Would be nice to see a future feature that includes separate check boxes for disabling position and/or orientation tracking.

On a related note, I'm curious what the following code is for. If the tracker controls the position and orientation of the OVRCameraRig why does this code need to set the transforms of the eyes? If the eyes are children of the OVRCameraRig the eyes will be transformed along with the OVRCameraRig naturally in the scene object hierarchy, why the extra step here?OVRCameraRig.csprivate void UpdateAnchors() { OVRPose leftEye = OVRManager.display.GetEyePose(OVREye.Left); OVRPose rightEye = OVRManager.display.GetEyePose(OVREye.Right); leftEyeAnchor.localRotation = leftEye.orientation; centerEyeAnchor.localRotation = leftEye.orientation; // using left eye for now rightEyeAnchor.localRotation = rightEye.orientation; leftEyeAnchor.localPosition = leftEye.position; centerEyeAnchor.localPosition = 0.5f * (leftEye.position + rightEye.position); rightEyeAnchor.localPosition = rightEye.position; }

There were separate check boxes for disabling rotation/position tracking in 0.4.2. I'm also missing these options, hopefully they will be added to the OVRCameraRig in the next version.The following code is not working right now (the setter for isEnabled does not work as one would expect):OVRManager.tracker.isEnabled = false;

OVRManager.usePositionTracking and OVRTracker.isEnabled control whether the IR tracking camera affects the head position. If they are false, then we use the head model to infer the position based on the rotation. It sounds like you want to completely control the position and rotation of each eye camera, so you should probably replace the code in UpdateAnchors() with whatever your tracking system needs. For a future release, I've added a "PoseChanged" event where you could run this code without modifying OVRCameraRig.

Hi vrdaveb,Ah, so I had to set both OVRManager.usePositionTracking and OVRManager.tracker.isEnabled to false (the latter after the execution of OVRManager's Start-function), then the IR camera-based position tracking stopped. Only setting OVRManager.usePositionTracking=false wasn't enough, which I think is confusing.Furthermore, if I set OVRManager.tracker.isEnabled=false, then OVRManager.tracker.isEnabled still returns true afterwards. I'm using OVR 0.4.4.Ok, now I get what you mean with PoseChanged. Yeah, full control of position and rotation of the eyes would definitely help.With DK1 and OVR 0.3 I was able to remove the rotation-based translation with the following: oculusCamController.SetNeckPosition(Vector3.zero); oculusCamController.SetEyeCenterPosition(Vector3.zero);But it seems like this is not possible anymore.

One more thing: If I have both OVRManager.usePositionTracking and OVRManager.tracker.isEnabled set to false so that the position of the eyes is not updated by the Oculus infra-red (IR) camera, then the IR camera-based yaw drift correction is also disabled. We would very much like to have that enabled while not updating the eye positions with the IR camera.

Way to disable orientation tracking? [0.4.3] | Meta Community Forums

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dbuck
Honored Guest
10 years ago
This is one of the blocking issues with our Gear app, we're unable to update to the latest SDK's until this is fixed, and unable to publish updates with the previous SDK's.

To throw another wish at the feature.
AnRaEl
Honored Guest
9 years ago
Any updates since then? I'm using Unity 5.5.1 + Oculus Unity Utilities 1.10.0 and targeting GearVR. What I want to achieve is to read a head orientation and transform OVRCameraRig to a completely different rotation and position based on this information. To be more specific, I'd like to implement a rotation around a pivot point and look at this pivot point all the time.
What I tried to do is parenting OVRCameraRig to a desired anchor object, disabled OVRManager position tracking and IPD position tracking, even commented OVRCameraRig.UpdateAnchors() (except the event call) to avoid anchors change by OVR scripts. Every frame I forced local positions and rotations of all anchor objects under TrackingSpace to zero values in two places (yes, this excessive): in OVRCameraRig.UpdateAnchors event handler and in LateUpdate().
I read the HMD orientation info from OVRManager.tracker.GetPose().orientation and do all necessary calculations then update OVRCameraRig's anchor position and rotation.
In Unity Editor it works as expected, but on a device I see a different picture and orientation is absolute, while camera world position is not changing. What I'm missing in this scenario?
I'd appreciate any help because I'm fighting with this task for several days with no luck.

EDIT: I forgot to mention that I also commented a bug fix in OVRCameraRig.Update() function:

if (!correctedTrackingSpace)
{
//HACK: Unity 5.1.1p3 double-counts the head model on Android. Subtract it off in the reference frame.

var headModel = new Vector3(0f, OVRManager.profile.eyeHeight - OVRManager.profile.neckHeight, OVRManager.profile.eyeDepth);
var eyePos = -headModel + centerEyeAnchor.localRotation * headModel;

if ((eyePos - centerEyeAnchor.localPosition).magnitude > 0.01f)
{
trackingSpace.localPosition = trackingSpace.localPosition - 2f * (trackingSpace.localRotation * headModel);
correctedTrackingSpace = true;
}
}

So anchors from OVRCameraRig are not updated in my code anymore and I force them to identity rotations and zero positions in Update() and LateUpdate() cycles, but somehow they are constantly overriden.

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Way to disable orientation tracking? [0.4.3]

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