How to modeling highway include interchange

[waltertsou]

Hi

 

I want to model a highway include interchange

 

If I used Spline to draw that like below pic , it will occurred an error, can't turn to poly and disappear.

 

However,i can use Polygon to model it, but it's inconvenience to control radian.

 

Have any good suggestion to model it? It confuse me a period of time. Thanks a lot!

 

Edited June 6, 2016 by waltertsou

[Francisco Penaloza]

If the splines are overlapping in the same Z space, it won't work, you need to move the spline up and then add a edit-poly modifier, and go from there.

You may need to model each section separate tho, in many cases Max won't be able to resolve and a whole.

[Corey Beaulieu]

You should draw a single spline from the center and then Path Deform a plane onto it. I think that will be much more useful to you.

[waltertsou]

Thanks your Reply.Temporarily, my solution is detach the overlapping edge of the spline to two objects. It can be turn to poly and it's fine.