how do you uvmap a sweep spline?

[Morne]

Hi all

I have a flat spline. I apply a sweep and select a profile. I tick "gen mapping coords". works nice in 70 percent of the places on the sweep. Other places it gets skewed and curved and goes all zi zag. Why?

Its a spline I'm sweeping to make a kerb/curb

But it does it with any spline and profile
I'm on max 2013, but it did it with previous versions also.

[chrisjacks21]

I have always put in extra verts, particularly either side of a corner. It doesn' t totally solve the problem, but reduces it enough in most cases.

[Morne]

the problems I'm getting is on a straight section
it nicely goes around curves and corners, but on some straight sections it gets confused

[pailhead]

It's probably because your corners are deforming it before it gets to the straight section. Can you post a screenshot?

[joconnell]

Yeah - check your splines, sometimes you might have a straight section, but it's actually got a bezier handle that's running along the same straight line which will affect how the sweep interpolates. Does the mesh of the sweep look evenly spaced?

[Morne]

its imported from cad
straight as can be with vertices only at the ends on each straight section. Curved sections also only have vertices on the corners only. Even if I make ALL vertices corners, I still get same problem. Will try and post some screenshots or even a scene somewhere next week. Just busy with something else right now

[thablanch]

You have the spline unwrap, in the unwrap tool.. works quite fine....