Sounds great :-)
It is the advanced version of deform texture (pattern or other input) along a spline (path).
I delete my idea at the idea posting website from allegorithmic and comment another idea post with nearly same idea.
Here you can go to it: https://allegorithmic.uservoice.com/forums/257908-substance-designer/suggestions/6642437-implement-paths-like-in-photoshopAnother Idea to add a Spline at each side of the bitmap. The form of the spline move the pixel, shrink, grow, and/or cut the bitmap.
I think it is good for walking paths, bricks and maybe really good for transform the patterns to the uv-mesh!
Maybe the Splines animateable.
And what you want to animateable the offset :-)
Really great idea for liquids, too!
Or for conveyor belt!
Or to simulate ather movements...
What do you thinking about?
Here are my opinions how can the spline deformer works: