Ideas for how add hills to 3d that player z adjusts to

Hi all, looking for some ideas on how to add hills in 3d that a player can go up and down, not like Minecraft blocky hills.

So far I've tried using mesh distortion on Tiled background/sprites to make the hills by adjusting the z elevation of points. Then using multiple collision sprites to adjust z elevation by .1 each time trying to match the height. It's juttery and a bit of a bodge!

Is there any way to reference a point on a mesh distortion to get the z elevation?

Or any other way to smoothly adjust the z elevation from point a to b?

Thanks for any ideas.

Or any other way to smoothly adjust the z elevation from point a to b?

Thanks for any ideas.

Lerp (+derivatives) and tween are the go to tools for acquiring any sort of smoothed values between two other values. How exactly to do it will depend on your set up though.