Texture editing and mapping by splines

Might it be possible to take a spline with radius (pipe), and use it for texture painting ==> a Farm lane, Rivver, Shorelineor Street and a Terrain, if you change the Spline, the Geometry and Textures should change too?

It would be nice to have a Node or Tool for draw Terrain Maps etc. with splines like that, espechialy with geometry nodes and Shader...

Seen somethong kind of in that Video of unrealengine: youtu.be/gbj1qgPOl3E