Oculus Custom Hands - Stutter

If you are using Unity there is a Time setting that can be adjusted to help. Its covered a little bit in this video https://www.youtube.com/watch?v=rnOR1OANIAU&list=PLrk7hDwk64-Y7ELKfkw8ox8TaT9y3gNpS&index=2

How are you updating the hand's positions? There's an event in OVRCameraRig called UpdatedAnchors. If you subscribe to that you will get a callback at exactly the same time that Oculus updates the position of the controllers in the tracking space. It shouldn't be possible for the hands to lag in that situation.

using UnityEngine;

public class HandTracker : MonoBehaviour
{
	[SerializeField]
	OVRCameraRig cameraRig;

	[SerializeField]
	Transform leftHandTransform;

	[SerializeField]
	Transform rightHandTransform;

	void Start()
	{
		cameraRig.UpdatedAnchors += OnUpdatedAnchors;
	}

	private void OnDestroy()
	{
		cameraRig.UpdatedAnchors -= OnUpdatedAnchors;
	}

	private void OnUpdatedAnchors(OVRCameraRig rig)
	{
		leftHandTransform.SetPositionAndRotation(rig.leftHandAnchor.position, rig.leftHandAnchor.rotation);
		rightHandTransform.SetPositionAndRotation(rig.rightHandAnchor.position, rig.rightHandAnchor.rotation);
	}
}

Another thought: Do you have any animations on the hands that might be setting their position? There could be a fight between the animation position and the VR position that looks like jitter?

Okay. I just tried out the CustomHands scene in the Sample Framework and I see the stutter that you're talking about. I feel bad saying this in the Oculus forum, but so much of the code in the Sample Framework is broken and out of date.

In OVRGrabber.cs try changing the Awake() function by adding the three lines below:

		// Add this
		if (rig == null)
		{
			rig = OVRManager.instance.GetComponent<OVRCameraRig>();
		}
		// End add this

	protected virtual void Awake()
	{
		m_anchorOffsetPosition = transform.localPosition;
		m_anchorOffsetRotation = transform.localRotation;

		// If we are being used with an OVRCameraRig, let it drive input updates, which may come from Update or FixedUpdate.

		// FIXME: HEY OCULUS THIS IS A DUMB AND HACKY WAY TO FIND THE OVRCameraRig!!!!!!!
		OVRCameraRig rig = null;
		if (transform.parent != null && transform.parent.parent != null)
			rig = transform.parent.parent.GetComponent<OVRCameraRig>();

		// Add this
		if (rig == null)
		{
			Debug.Log("Trying one last time to find the OVRCameraRig.");
			rig = OVRManager.instance.GetComponent<OVRCameraRig>();
		}
		// End add this

		if (rig != null)
		{
			Debug.Log("Success! Found the OVRCameraRig");

			rig.UpdatedAnchors += (r) => { OnUpdatedAnchors(); };
			operatingWithoutOVRCameraRig = false;
		}
		else
		{
			Debug.LogWarning("Couldn't find the OVRCameraRig. There will be hand jitter.");
		}
	}

This isn't working either : / It essentially does the same thing as the script you said about before. I have contacted Oculus, maybe they can advise on the next step, but at this point I think I'm just going to give up searching, and I might just have to use the Avatar hands again. If I do find an answer, I will post back here, for anyone who has the same issue.

Is there still no solution for this problem? I am experiencing the same stutter/jittery movement problems for my hands, grabbed objects and interestingly enough for any objects that follow the Anchors in OVRCameraRig (more precisely, I have some objects follow my CenterEyeAnchor and they experience the same jittery movement, even though the movement is (supposed to be) smoothed out with the smoothdamp function)

This leads me to believe the problem lies somewhere within the OVRCameraRig...? I am currently using a rift S and have set the time in the physic setting to 1/80 (experienced the same problem before on the rift with 1/90). 

I also noticed one more interesting boolean option in the OVRCameraRig script on the OVRCameraRig game object, called "Use Fixed Updates For Tracking". Well, it does exactly what it sounds like when enabled, but sadly hasn't fixed the problem.

This is strange, since the whole tracking/camera/hand setup I am using is straight from Oculus, I haven't messed with the scripts at all. One more noteworthy thing might be that I am not using the OVRGrabber script since VRTK is doing the grab actions for me.

Sorry for posting in an old thread, I hope I am not violating any rules.

Same stutter movement issue for me. Wishing for a solution.