Blender Extrude Nurbs Curve
Extrude along path the extrude along path technique is a very powerful modelling tool.
Blender extrude nurbs curve. The e key extrude works only for the front and back cv s and gives the same result as ctrl lmb. When skinning nurbs curves you have to make sure that they all have the same amount of cv s or else blender can t skin them. Note that this is not related to extrude used in mesh edit mode. If you had created four separate curves then filling the outer curve would have covered the eyes and mouth.
Nurbs curve on the other hand have only control points. If you want to extrude like in mesh then use a surface nurb. Blender can only identify holes in a filled curve if the holes are part of the same object as the outer curve. It consists of creating a surface by sweeping a given profile along a given path.
Now that all the curves are one object we can add the so called skin to the nurbs so first go into editmode and then select all cv s then press to skin the nurbs curves. The real extrude for curves is under the width field. Move rotate scale like other elements in blender curve control points and handles can be moved rotated or scaled as described in basic transformations. Blender internally treats nurbs surfaces and nurbs curves completely differently.
Extrude turns a one dimensional curve into a two dimensional curve by giving it height. Both the profile and the path can be a bézier or a nurbs curve. Extruding the end of an existing mesh along a bezier curve in blender duration.