The camera follows the protagonist jitter smoothing scheme

In the production of animation camera lens, there are several methods to make
one based on fixed seats, this camera animation is smooth, the effect is better, but for the movement of objects, such as moving the protagonist, it is difficult to make;
one kind is based on the movement mechanism, the camera hanging on the movement of the main character who can solve the first case, but it is possible to move the main character is not smooth, can cause camera shake

For the second case, the camera may be moved smoothing process, which would be
in front of the plurality of lead points recorded moving current camera position can be averaged several points of the front;