making creases

[ern]

Hi,

How do I make "strech creases" like the ones on this softtop, see attached picture

ern

[PiXeL_MoNKeY]

That is going to be difficult since Power NURBS lacks a lot of freeform modeling. You can view the NURBS Control Points, but AFAIK you can't edit them inside Pwr Objects. You could Extract to NURBS, which creates a Max NURBS object from the selected Pwr faces. Or you could always try standard NURBS surface to start with, which allows you to adjust the surface CVs directly, this could then be converted to a Pwr_EditNRB. Or try a Pwr_Plane primitive as it allows you to define your surface subdivisions which could then be edited directly using the Control Sketch.

-Eric

[nPower_Michael]

Some other possible approaches:

- You can manually create a bezier curve network using the sketch tool, put some sweeps over it, and tweak the bezier handles to introduce the stretch marks. (In practice this works a lot like the power plane)

- If you want to work with a control point surface, you can generate an object that behaves like one: draw a control point sketch with the desired number of control points along one direction, then use SHIFT+Translate and make a number of copies of that curve corresponding to the number of control points you want in the other direction (minus one, since you already have one curve). Then, create a multi-blend surface through all these curves, and use sub-object vertex editing to move the "control points".