What is wrong with my code of simple rotation?

Unity Engine
1

I want a rigidbody to add force relative to camera forward on XZ axis from global forward axis.
But the problem is it doesn’t result in right rotation of directionTo.

Code:

        if (Input.GetButton(button))
        {
            Vector3 directionTo = direction;

            if (relativeToCamera)
            {
                Vector3 cameraForward = new Vector3(camera.forward.x, 0, camera.forward.z);
                Quaternion rotation = Quaternion.LookRotation(Vector3.forward, cameraForward);
                directionTo = rotation * direction;
            }

            Debug.Log(directionTo.ToString()); // (1.0, 0.0, 0.0) // first frame
            Debug.Log(directionTo.ToString()); // (0.0, -1.0, 0.0) // other frames
            rigidbody.AddForce(directionTo.normalized * force);
        }
2

My guess is I should use Quaternion.FromToRotation instead on Quaternion.LookRotation.
Trying now.

3

Yes, it works.
Quaternion.FromToRotation is the way to go.