UnityStandardAssets.Characters.FirstPerson.RigidbodyFirstPersonController.RotateView C# (CSharp) Method

        private void RotateView()
        {
            //avoids the mouse looking if the game is effectively paused
            if (Mathf.Abs(Time.timeScale) < float.Epsilon) return;

            // get the rotation before it's changed
            float oldYRotation = transform.eulerAngles.y;

            mouseLook.LookRotation (transform, cam.transform);

            if (m_IsGrounded || advancedSettings.airControl)
            {
                // Rotate the rigidbody velocity to match the new direction that the character is looking
                Quaternion velRotation = Quaternion.AngleAxis(transform.eulerAngles.y - oldYRotation, Vector3.up);
                m_RigidBody.velocity = velRotation*m_RigidBody.velocity;
            }
        }