Is there something in Houdini that would resemble a sweep or loft operation from other dccs where you can specify a list of profiles or cross sections and sweep them on a rail path? Eventually having the possibility of specifying at what path percentage each profile is placed or something similar?
Thanks.

You can use variants for sweep. So can create a 1:1 mapping between each point of the backbone and a cross section. For example, if you have 100 points of the back bone and 3 cross sections -> section 0 ~ point 0, section 1 ~ point 50 and section 2 ~ point 100 and point 10 is 20% blend between section 0 and section 1 (and so on).
Here is an modified example

Aizatulin
You can use variants for sweep. So can create a 1:1 mapping between each point of the backbone and a cross section. For example, if you have 100 points of the back bone and 3 cross sections -> section 0 ~ point 0, section 1 ~ point 50 and section 2 ~ point 100 and point 10 is 20% blend between section 0 and section 1 (and so on).
Here is an modified example

I'm not surprised that it works, not even that it has to be this complicated, only that you would have to do it this way because there is not built in function yet. Thanks!

coccosoids
I'm not surprised that it works, not even that it has to be this complicated, only that you would have to do it this way because there is not built in function yet. Thanks!

Yes in Houdini some things can initially be 'complicated' - But once it's done, you can turn it into an asset then you now have something simple that is your own 'built in' function to use whenever you want.