Shape generator for parametric figures without corners

Hello! I would like to generate something that looks like those:


With a slider, it should be possible to come from something like the first image to something like the second image.

Is it realistic do do that? Has anyone an idea how to do that best? What plugin would be best?

Thanks <3

it is good to give reference when you post pictures that are not your own. Because it is the work of someone (not yours) and it could help understand how it was done.

So the first is stone carving, to my knowledge there is not yet a button in Grasshopper to make art automatically.
For the second it seems based on curves that are thickened and smoothed with some specific from the author.
There are many strategies to get smooths volume
Catmull & Clark subdivision