TexCoords deforming

Hi all
how to achieve this TexCoordinate deforming?
or I need special shader?
reference: http://www.revisionfx.com/products/refill/gallery/
cheers

https://vvvv.org/sites/default/files/imagecache/large/images/Fill__FX1.jpg
https://vvvv.org/sites/default/files/imagecache/large/images/Fill__FX2.jpg

I’d love to know too. How did you make those screenshot by the way ?

hi clone
it’s AfterEffects plug-in: Refill

cool FX but very jittering in use