Kinect.AvatarController.SetModelArmsInTpose C# (CSharp) Method

        protected void SetModelArmsInTpose()
        {
            Vector3 vTposeLeftDir = transform.TransformDirection(Vector3.left);
            Vector3 vTposeRightDir = transform.TransformDirection(Vector3.right);
            Animator animator = GetComponent<Animator>();

            Transform transLeftUarm = animator.GetBoneTransform(HumanBodyBones.LeftUpperArm);
            Transform transLeftLarm = animator.GetBoneTransform(HumanBodyBones.LeftLowerArm);
            Transform transLeftHand = animator.GetBoneTransform(HumanBodyBones.LeftHand);

            if (transLeftUarm != null && transLeftLarm != null)
            {
                Vector3 vUarmLeftDir = transLeftLarm.position - transLeftUarm.position;
                float fUarmLeftAngle = Vector3.Angle(vUarmLeftDir, vTposeLeftDir);

                if (Mathf.Abs(fUarmLeftAngle) >= 5f)
                {
                    Quaternion vFixRotation = Quaternion.FromToRotation(vUarmLeftDir, vTposeLeftDir);
                    transLeftUarm.rotation = vFixRotation * transLeftUarm.rotation;
                }

                if (transLeftHand != null)
                {
                    Vector3 vLarmLeftDir = transLeftHand.position - transLeftLarm.position;
                    float fLarmLeftAngle = Vector3.Angle(vLarmLeftDir, vTposeLeftDir);

                    if (Mathf.Abs(fLarmLeftAngle) >= 5f)
                    {
                        Quaternion vFixRotation = Quaternion.FromToRotation(vLarmLeftDir, vTposeLeftDir);
                        transLeftLarm.rotation = vFixRotation * transLeftLarm.rotation;
                    }
                }
            }

            Transform transRightUarm = animator.GetBoneTransform(HumanBodyBones.RightUpperArm);
            Transform transRightLarm = animator.GetBoneTransform(HumanBodyBones.RightLowerArm);
            Transform transRightHand = animator.GetBoneTransform(HumanBodyBones.RightHand);

            if (transRightUarm != null && transRightLarm != null)
            {
                Vector3 vUarmRightDir = transRightLarm.position - transRightUarm.position;
                float fUarmRightAngle = Vector3.Angle(vUarmRightDir, vTposeRightDir);

                if (Mathf.Abs(fUarmRightAngle) >= 5f)
                {
                    Quaternion vFixRotation = Quaternion.FromToRotation(vUarmRightDir, vTposeRightDir);
                    transRightUarm.rotation = vFixRotation * transRightUarm.rotation;
                }

                if (transRightHand != null)
                {
                    Vector3 vLarmRightDir = transRightHand.position - transRightLarm.position;
                    float fLarmRightAngle = Vector3.Angle(vLarmRightDir, vTposeRightDir);

                    if (Mathf.Abs(fLarmRightAngle) >= 5f)
                    {
                        Quaternion vFixRotation = Quaternion.FromToRotation(vLarmRightDir, vTposeRightDir);
                        transRightLarm.rotation = vFixRotation * transRightLarm.rotation;
                    }
                }
            }
        }