protected bool UpdateHandData(OVRHand ovrHand, OVRSkeleton ovrSkeleton)
{
bool isTracked = ovrHand.IsTracked;
if (ovrHand.HandConfidence == OVRHand.TrackingConfidence.High)
{
_lastHighConfidenceTime = Time.unscaledTime;
}
if (ovrHand.HandConfidence == OVRHand.TrackingConfidence.Low)
{
if (settingsProfile.MinimumHandConfidence == OVRHand.TrackingConfidence.High)
{
isTracked = false;
}
else
{
float lowConfidenceTime = Time.time - _lastHighConfidenceTime;
if (settingsProfile.LowConfidenceTimeThreshold > 0 &&
settingsProfile.LowConfidenceTimeThreshold < lowConfidenceTime)
{
isTracked = false;
}
}
}
if (ControllerHandedness == Handedness.Left)
{
settingsProfile.CurrentLeftHandTrackingConfidence = ovrHand.HandConfidence;
}
else
{
settingsProfile.CurrentRightHandTrackingConfidence = ovrHand.HandConfidence;
}
if (ovrSkeleton != null)
{
var bones = ovrSkeleton.Bones;
foreach (var bone in bones)
{
UpdateBone(bone);
}
UpdatePalm();
}
HandDefinition?.UpdateHandJoints(jointPoses);
// Note: After some testing, it seems when moving your hand fast, Oculus's pinch estimation data gets frozen, which leads to stuck pinches.
// To counter this, we perform a distance check between thumb and index to determine if we should force the pinch to a false state.
float pinchStrength = HandPoseUtils.CalculateIndexPinch(ControllerHandedness);
if (pinchStrength == 0.0f)
{
IsPinching = false;
}
else
{
if (IsPinching)
{
// If we are already pinching, we make the pinch a bit sticky
IsPinching = pinchStrength > 0.5f;
}
else
{
// If not yet pinching, only consider pinching if finger confidence is high
IsPinching = pinchStrength > 0.85f && ovrHand.GetFingerConfidence(OVRHand.HandFinger.Index) == OVRHand.TrackingConfidence.High;
}
}
isIndexGrabbing = HandPoseUtils.IsIndexGrabbing(ControllerHandedness);
isMiddleGrabbing = HandPoseUtils.IsMiddleGrabbing(ControllerHandedness);
// Pinch was also used as grab, we want to allow hand-curl grab not just pinch.
// Determine pinch and grab separately
if (isTracked)
{
IsGrabbing = isIndexGrabbing && isMiddleGrabbing;
}
return(isTracked);
}
/// <summary>
/// Update the controller data from the provided platform state
/// </summary>
/// <param name="interactionSourceState">The InteractionSourceState retrieved from the platform</param>
public void UpdateController(OVRHand hand, OVRSkeleton ovrSkeleton, Transform trackingOrigin)
{
if (!Enabled || hand == null || ovrSkeleton == null)
{
return;
}
bool isTracked = UpdateHandData(hand, ovrSkeleton);
IsPositionAvailable = IsRotationAvailable = isTracked;
if (isTracked)
{
// Leverage Oculus Platform Hand Ray - instead of simulating it in a crummy way
currentPointerPose.Position = trackingOrigin.TransformPoint(hand.PointerPose.position);
Vector3 pointerForward = trackingOrigin.TransformDirection(hand.PointerPose.forward);
Vector3 pointerUp = trackingOrigin.TransformDirection(hand.PointerPose.up);
currentPointerPose.Rotation = Quaternion.LookRotation(pointerForward, pointerUp);
currentGripPose = jointPoses[TrackedHandJoint.Palm];
CoreServices.InputSystem?.RaiseSourcePoseChanged(InputSource, this, currentGripPose);
UpdateVelocity();
}
for (int i = 0; i < Interactions?.Length; i++)
{
switch (Interactions[i].InputType)
{
case DeviceInputType.SpatialPointer:
Interactions[i].PoseData = currentPointerPose;
if (Interactions[i].Changed)
{
CoreServices.InputSystem?.RaisePoseInputChanged(InputSource, ControllerHandedness, Interactions[i].MixedRealityInputAction, currentPointerPose);
}
break;
case DeviceInputType.SpatialGrip:
Interactions[i].PoseData = currentGripPose;
if (Interactions[i].Changed)
{
CoreServices.InputSystem?.RaisePoseInputChanged(InputSource, ControllerHandedness, Interactions[i].MixedRealityInputAction, currentGripPose);
}
break;
case DeviceInputType.Select:
Interactions[i].BoolData = IsPinching || IsGrabbing;
if (Interactions[i].Changed)
{
if (Interactions[i].BoolData)
{
CoreServices.InputSystem?.RaiseOnInputDown(InputSource, ControllerHandedness, Interactions[i].MixedRealityInputAction);
}
else
{
CoreServices.InputSystem?.RaiseOnInputUp(InputSource, ControllerHandedness, Interactions[i].MixedRealityInputAction);
}
}
break;
case DeviceInputType.TriggerPress:
case DeviceInputType.GripPress:
Interactions[i].BoolData = IsPinching || IsGrabbing;
if (Interactions[i].Changed)
{
if (Interactions[i].BoolData)
{
CoreServices.InputSystem?.RaiseOnInputDown(InputSource, ControllerHandedness, Interactions[i].MixedRealityInputAction);
}
else
{
CoreServices.InputSystem?.RaiseOnInputUp(InputSource, ControllerHandedness, Interactions[i].MixedRealityInputAction);
}
}
break;
case DeviceInputType.IndexFinger:
HandDefinition.UpdateCurrentIndexPose(Interactions[i]);
break;
case DeviceInputType.ThumbStick:
HandDefinition.UpdateCurrentTeleportPose(Interactions[i]);
break;
}
}
}
