How to visualize displacement of geometry with warp

Hi I am trying to visualize a cylinder inside of a box expanding/being displaced. I have the object as a file where I can see the geometry and I also have .vti files with the x, y, and z displacements, however when I try to look at these files over time they look like they are just boxes with displacements inside of them and not for the specific geometries inside the box. I used the warp by scalar vector but nothing seems to show a volume moving. I have tried grouping the files in various ways and cannot get the cylinder to expand since it is inside the box. Any help is appreciated, thanks!

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