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Questions tagged [nurbs-surface]

A NURBS Surface is a mathematical model representing a surface. Use this tag for any questions pertaining to the "Surface" Object type in blender.

Non-uniform rational basis spline (NURBS) is a mathematical model commonly used in computer graphics for generating and representing surfaces. It offers great flexibility and precision for handling both analytic (surfaces defined by common mathematical formula) and modeled shapes.wikipedia

The Surface object type can me accessed from the add menu shift A > Surface.
Documentation for NURBS Surfaces at the Blender Manual

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How can I add control points to a NURBS surface

How can I add control points to the default 16 control points of a NURBS surface?
Steven
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Why do I get large bevels on a curve with such a small bevel object?

I am bevelling a simple circle with another simple circle and as you can see from the screen shot below I have to make the bevel circle incredibly small and I still end up with a very large cross section. I don't understand why the cross section on…
Transonic
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Rounded wireframe with big cells

I'm pretty new to Blender and I'm trying to create a perfectly round NURBS sphere. I need a wireframe of this sphere with big cells (like on the image below) but I also need curved (sic!) not straight edges of cells. Is there a way to do so?
georgmierau
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NURBS trimming, blend surfaces

I'm exploring Blender's NURBS functionality. So far, I've been able to define two curves and create a NURBS surface between them. Does Blender support more advanced NURBS features like trimming and blend surfaces? It's fine if the interface is still…
rlkw1024
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Aligning tangents in connecting NURBS-curves

I want to smoothly connect two NURBS-curves. To that purpose, how can I align their common vertex tangents? Right now, they're at an angle (see picture). I could do it manually (on sight), put that would never be (mathematically) perfect. ...
Steven
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How can I subdivide a Surface NURB without affecting the shape?

Say, I lay down a Surface NURB Circle in Blender. It has 4 control points, and it is circular. Now, if I Subdivide it to add more control points, it starts to become a square. The more I subdivide the more square it becomes: What I'd like to…
BGreenstone
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Getting exactly circular/rounded NURBS corners

How can the weight of a NURBS curve/surface be calculated such that corners are exactly circular? It has something to do with the angle of the corner, but that doesn't seem to be displayed anywhere.
AshRubigo
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NURBS convert to MESH and reverse operation

I encoutered the same problem asked by @Travis here, and I applied the solution proposed by @Moog. I tried thus to convert NURBS Sphere to MESH and delete Vertex, but when I tried to perform the reverse operation, I loose the object (see below). Is…
arum
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Joining Nurbs Circles?

I was trying to do this simple tutorial but when I tried to join the circles these just smashed into one and I can't even move them along the z axys. Thanks in advance!. EDIT: Adding de blend file, sorry fot the wait
Rorschacht
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Creating smooth surface on vertices

I basically have this: and I want to get this: I already tried creating a Nurbs curve and getting it on this, but that really sucks. So yeah...
Emil
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Create Surface over Hair Curves Blender 3.3.1

This is my first time using blender, I am trying to make a face and 3D print it. I have made the hair using blender's built in hair feature (the "empty hair" under curves). I modify it a bit to add some noise and duplicate the hairs. However, these…
alexprsh
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move vertices of nurbs relatively to neighboring vertices

Is it not possible to move vertices relative to each other in when editing the nurbs curve? When I select a vertex, the neighboring ones tend to follow it, i would like to avoid this. See attached gif.
shoggananna
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How to fill face with NURBS curve?

I'm trying to close a NURBS shape with the F key. It closes the shape (the control points), but does not fill the face. The editor is set to view objects in Solid Mode and X-Ray is disabled. I'm asking this because this youtu.be video shows it's…
user130470
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How to see 'Edit points' on the NURBS curve in Blender? (Equivalent to 'Edit Points' of 'CV Curve Tool' in Maya.)

Blender: Maya: How do I make these points visible? I see the control points and the hulls but not the edit points which normally stay on the line of the NURBS curve. For those who have never used Maya - it basically lets you manipulate the curve…
Mohd Arafat Hossain
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Merging nurbs sphere with cylinder

I want to merge the nurbs sphere with a cylinder as shown in the image below. I am a bit new to blender and very unsure how to go about doing it. The way I learnt to merge two objects is with ctrl + j but this does not work in this case.
user118792
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