Film a clip through a decorative glass pane after the fact. The picture breaks into cells, ridges, or tiles, each bending what lies behind it.
Patterns
Cracked Ice gives irregular shards, Glacier a hammered surface, Hexagon a honeycomb, Woven and Waffle regular crossing ribs, and Karatachi the traditional Japanese lattice. Pattern Scale sets the cell size and Relief Depth how strongly each cell bends the image.
Motion behind the glass
The pane stays still and the scene moves behind it, so a person walking past breaks into shifting fragments of color. Slow, colorful footage makes calm background loops; fast motion becomes abstract flicker.