Sweep issue.

Fwap

Hey there, First time poster age long lurker, just the usual.

I'm having some trouble in 3ds Max when using the sweep modifier on some splines.

For many projects, even the entire length of the project I'm on now, I’ve been successfully able to sweep splines into basic shapes.

The problem is lately every now and then when i go to sweep a spline the resulting shape is all...how do i say it off axis? rotated weirdly.

Anyway i have attached some pictures with my problem, the bottom image is the sweep result from the top, they come out as diamonds when they should be square.

Treacharous

Center pivot on main object first maybe?

Fwap

I've tried that, i even centered the pivot on every object. It seems to be just that location that sets off the sweep issue, i reverted back to an old save point and tried it out on a different part of the scene and it worked fine.

Which is weird, im detaching the face before i make any cuts into it for 'creat spline from selected' so its seriouly only a 4 sided face nothing else, untill i make cuts in it.

Mark Dygert

Rest Xform on the spline object that you're sweeping? Whenever you create a spline from an object it inherits the transforms also, so if the original object has been scaled and manipulated the Xform (transform) data needs to be reset.

Fwap

Yeah, i've tried that also. Doesnt fix the problem.

Just to make sure im doin' it right.

Utilities>reset Xform?

Sean VanGorder

Yup. Then "reset selected".

After that, try going to "Affect Pivot Only" and hit Reset Transform and Reset Scale.

Fwap

Hmm, that doesn't work either

I tried reseting Xform on the root object from wich im making my splines from also.

Mark Dygert

Well then its probably just the angle setting in the sweep modifier, looks like setting it to 45 will fix it.

Fwap

I tried turning that setting up or down but cause there are 3 plines the dont rotate unifomly, i can get one to sit normal by adjusting the setting, but the other 2 are still oddly rotated.

Mark Dygert

Probably detach each segment and set the angle for each individually then.