A stabilized object for Unity3D. Put a camera on it and it becomes a gimbal. Useful for recording user POV in VR.

StabilizedObject.cs

using UnityEngine;

public class StabilizedObject : MonoBehaviour
{
    public Transform Parent; // Transform to track rotation
    public bool SmoothPan = true;
    public bool SmoothRoll = true;
    public bool SmoothTilt = true;
    public float SmoothingMinimum = 0.05f;
    public float SmoothingMaximum = 0.005f;
    public bool AutoLevel = true;
    public bool AllowTilt = true;

    private Quaternion lastRotation;
    private Vector3 lastPosition;

    private void SmoothRotation()
    {
        float a = Quaternion.Angle(lastRotation, Parent.rotation);
        float f = Mathf.InverseLerp(0, 1, a);

        float smoothing = Mathf.Lerp(SmoothingMaximum,SmoothingMinimum , f);

        Quaternion newRotation = Quaternion.Slerp(lastRotation, Parent.rotation, smoothing);
        Vector3 rotationEuler = transform.rotation.eulerAngles;
        Vector3 newRotationEuler = newRotation.eulerAngles;
        if (SmoothRoll) rotationEuler.z = newRotationEuler.z;
        if (AutoLevel) rotationEuler.z = 0;
        if (SmoothTilt) rotationEuler.x = newRotationEuler.x;
        if (!AllowTilt) rotationEuler.x = 0;
        if (SmoothPan) rotationEuler.y = newRotationEuler.y;
        transform.rotation = Quaternion.Euler(rotationEuler);
        lastRotation = transform.rotation;
    }

    private void SmoothPosition()
    {
        if (Vector3.Distance(lastPosition, Parent.position) > 0.2) 
            transform.position = Parent.position; // This means teleport (probably)
        else
            transform.position = Vector3.Lerp(lastPosition, Parent.position, 0.8f);
    }

    void Start()
    {
        if (Parent == null)
            Parent = gameObject.transform.parent.transform;
        gameObject.transform.parent = null;
        lastRotation = Parent.rotation;
        lastPosition = Parent.position;
    }

    void Update()
    {
        SmoothRotation();
        SmoothPosition();
    }
}