I remember a function, but I can't remember.

I see this feature from video, but I can’t remember where I see it, or whether it is a addon. who knows this function to help me, thank you ~!

The function is to adjust the arrangement of points through the green curve.The green curve is my later painting.
thanks~


https://sites.google.com/site/bartiuscrouch/looptools/gstretch

thanks for you :)