I have a nice simple shot where the camera moves up. I motion tracked the camera movement with two null objects. The key frames of the null object are pretty linear. Now I added a tower to my footage and parented it to the null object. The tower is stationary and fixed at that frame but it shakes. The shaking is pretty noticeable. How do I prevent the tower from these rapid shakes? I know I have to do something with the null object.