//rotation set to the QuaternionSerial
public void setRotation(QuaternionSerial aRot)
{
rotation = quatSer.setQuaternion(aRot.x, aRot.y, aRot.z, aRot.w);
}
//rotation set to the QuaternionSerial
public void setRotation(Quaternion aRot)
{
quatSer.setQuaternion(aRot.x, aRot.y, aRot.z, aRot.w);
}