Re: growing a vine/ tree

I'd recommend using spline wrap, which is a feature of mograph (if you have it). The way it works is kind of cleverer than sweep nurbs and it's easier to animate with the tapered end.

Make a cylinder, click on mograph>spline wrap. Drop the spline wrap inside the cylinder. Click on spline wrap, and in the attributes window, look at the object tab. There should be a think saying •Spline. Drop the spline you want to grow in there. Then further down in the object tab of spline wrap, use the size controls to draw the shape of the taper.Then further up use the From and To sliders to grow it.

I might be wrong but I think in sweep nurbs if you create a taper, when you grow the spline, it will start off thick, and then end thin, rather than always having a tapered end. Animating the taper shape is the only way to get round it I think…?