is there any way to use nurbs surface as a ground so it looks sorta like hills but then also be able to know when you have “run into” the hill or nurbs surface. another way of putting it: is there anyway given a nurbs surface and all the control points and parameters to determine all the points that lie on this surface?
Of course can use NURBS for your landscape. I personaly prefer to perform the collsion dection on the the tesselated triangles but that depends on what kind of collision detection you want to make i.e. NURBS against NURBS, NURBS against triangles, NURBS against points …
If you have all the data of a NURBS you can
of course calculate if a specific point is on the curve.