DisplacementMapFilter positioning problem

Hi, I’m making a game in which there are some things going on outside the viewable area. Also, a springy camera follows the main character.

This means not only that the root’s position is constantly changing, but it’s width and height are changing to accommodate the things going on outside the viewable area.

When I add the displacement map filter, it is always off-screen (like a giant rectangle of distortion that the character can move to).

Is there any way to make sure the displacement map filter is always centered in the viewport?