nurbs

Support Basics & Interface
1

Hi, I started working on this tutorial http://vc.bc.ca/~kingsland/blender/tutorials/nurbs/Blender%20tutorial%20Fun%20with%20nurbs.htm
but when I join the nurbs then go into edit mode and hit [crtl] F I get an error saying “can’t make segment” What am I doing wrong?

2

hu i had the same problem

well blenders nurbs tools arent the best.

since blender has a pretty good subdiv surface system
i would just think about to switch to that instead of using
nurbs.

sicne blender has no trimsurfaces projections etc. the nurbs is more a
sketch tool than a real modeling tool here.

but i would like to why make segments do not work on my latest blender release as well.

3

You made sure to add Surface->Curve and not Curve->Nurb, right?

After you joined the curves with CTL-J, tab into edit mode. Did you select all the verts with AKEY? You will get the “can’t make segment” error if the verts aren’t selected.

This works in blender 2.28a

4

darn surface - curve worked.

ok where is the difference between Surface->Curve and Curve->Nurb.

eicke

5

Curve -> NURBS are 2D curves that can be beveled with a bevel object or that can serve as extrusion profile for an object (using the Ext1 and Ext2 parameter).

Martin

6

You also might want to try using C to close the curve if F isn’t working. I’ve run into that before.

7

hi teeth

ok that is pretty confusiong imo.

should there better be only a button to check/uncheck to make a curve 2d/3d?

ok is than nurbs > curve the same like path? or is the path a different curve on its own? i saw that nurbs>curve only has the 3d button unchecked.

anyway why are there two different curves (nurbs/surface)?

for the path curve the black perpendicular lines do they reflect somehow a progressof animation through the time like in flash or director?

claas

8

I think you’re mistaking loftable with 3D here. Curve and Surface objects do not have the same functions and use. Making a Curve 3D doesn’t make it a Surface.

ok is than nurbs > curve the same like path? or is the path a different curve on its own? i saw that nurbs>curve only has the 3d button unchecked.

The only difference between a Curve -> Path and Curve -> NURBS is that Path has the 3D option and the CurvePath option turned on by default.

anyway why are there two different curves (nurbs/surface)?

Because both have very different use, like I said in my previous post.

for the path curve the black perpendicular lines do they reflect somehow a progress of animation through the time like in flash or director?

The space between each line represents the same time interval on the path.

Martin

9

oops, I pressed add curve not surface. thanks :slight_smile: