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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.

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Object not following the Nurbspath but there is a blue line moving

The human is still in position but the blue line is moving. The human isn't moving, but the blue line is moving. What should I do?
Mimi Rifai's user avatar
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Are there any NURBS Add-ons or future NURBS updates for Blender?

Is there any information about NURBS add-ons that can improve the functionality of NURBS within Blender? Are there any upcoming Blender updates planned to enhance NURBS capabilities?
blend33's user avatar
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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's user avatar
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47 views

Creating particle system emitting nurbs sphere

I'm new to blender, and using it for science visualisation. I'm working with a large number of points and would like to use nurbs sphere as particles to make everything run more smoothly. However when ...
Clément DUFOUR's user avatar
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17 views

Can Blender create a curved surface from vertices and a custom formula? [duplicate]

Is it possible to use blender to create a curved surface based on an original formula instead of the one used to create NURBS? The way curved surfaces are created by computers is, for each conceivable ...
sequence345's user avatar
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Is it possible to use blender to create a curved surface based on an original formula instead of the one used to create NURBS?

The way curved surfaces are created by computers is, for each conceivable point on a rectilinear surface, a formula is applied which evaluates the position of control vertices to determine where in ...
sequence345's user avatar
1 vote
0 answers
14 views

How can I access fcurves for elements that are not objects? [duplicate]

I'm able to access and manipulate individual keyframes (interpolation, handle length, etc) on a normal object's translation/rotation/scale fcurves by storing the fcurve data in this variable, and then ...
sakeferret's user avatar
1 vote
1 answer
121 views

Plane not following NURBS curve (path) properly

so I was trying to follow a YouTube tutorial on how to create a track for Assetto Corsa PC, where the map is created via Blender and the game's SDK. I have a path that is a NURBS curve, which is the ...
James's user avatar
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1 answer
62 views

Is it possible to slide NURBS control points along rows?

For a mesh, I can hit 'G' twice and drag a vertex along connected edges. This could be very useful when working with NURBS surfaces, as I am now inclined to for a specific model; however, double-G ...
Michael Macha's user avatar
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32 views

Edit the resulting NURBS surface of a bevelling

These are the editing handles for a NURBS torus: Let's say I want to create a "torus" on an arbitrary NURBS curve. I read I need to use the bevel feature: (by the way, I was expecting a ...
Mark's user avatar
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How to use 3d texture for surface?

i have downloaded model from poly haven and this is what i got, does anyone can help me how to turn this into surface? sorry, I'm just a newbie
Sam Aldyan's user avatar
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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 ...
alexprsh's user avatar
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201 views

Triangulated mesh to Nurbs surface conversion

I am looking for a feature/workflow/add-on for blender to convert triangulated meshes into a nurbs surfaces. While looking on the internet for a solution I found this software that looks like it does ...
TheAliw1's user avatar
1 vote
0 answers
76 views

How to get every resolution vertice's coordinates of Nurbs curve instead of control point without converting mesh

How to get every resolution vertice's coordinates of Nurbs curve instead of control point without converting mesh using python? That is get the green point's coordinate
Tac's user avatar
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1 vote
0 answers
175 views

Curvature evaluation possibility/tool in Blender

Are there any ways to evaluate curve and connection quality (like Curvature Comb Tool)? I really appreciate any help you can provide.
Andrey Chernorot's user avatar
3 votes
3 answers
913 views

Maintaining NURBS quality importing and exporting in and out of Blender

My planned workflow: SolidWorks -> Blender -> Keyshot I export a SolidWorks file as .wrl format. Import the .wrl file into Blender, create an animation, and export it as .abc format into KeyShot....
Yabusa's user avatar
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2 votes
1 answer
495 views

Make every extrusion faces camera

I have a Curve. It contains lots of splines. (Here I simply take two splines as an example) Now i extrude it. Now i want make all the extrusion face the camera. That is,I want all spline extrusions ...
Tac's user avatar
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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's user avatar
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274 views

How do I convert a DXF mesh to a solid surface?

I want to import a DXF mesh, and export a solid model for 3D printing. I need to convert the DXF mesh to a solid surface (and then extrude it). Can Blender do this?
TimEBN2020's user avatar
1 vote
1 answer
57 views

Object bevel is "frozen" for part of curve and doesn't adjust with z-axis changes?

I added a path and gave it an object bevel, everything seemed to be going well until I tried making a z-axis change to part of my path. The bevel tilted around the curve to accommodate this change but ...
George Hawkins's user avatar
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60 views

How to get the applied material on Surface/Curve Object type with Python?

I would like to understand if it is possible to determine and how, through Python, which of the materials of the ob.data.materials is really applied to the object ...
Noob Cat's user avatar
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3 votes
1 answer
216 views

Select Nurbs Surface CP's with Python

Is there a way to select specific vertices (control points) on a nurbs surface? I'm working with a Nurbs Surface Circle, and want to select the highlighted vertices with Python. I see this answer for ...
Increality's user avatar
1 vote
2 answers
1k views

Converting Bezier to NURBS Curve

I was trying to convert a Bezier curve to a NURBS curve by clicking Curve->Set Spline Type->NURBS. But after the conversion to NURBS, the curve disappears. Is there any way to preserve the ...
loma's user avatar
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1 answer
450 views

How do I add a loop cut to a NURBS surface?

The only way I have found to add a Loop Cut to a NURBS surface is to select an entire strip of faces and then using Subdivide. This is sub-optimal for two reasons: if I don't select the entire strip ...
Tobia's user avatar
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2 answers
2k views

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 ...
user avatar
2 votes
0 answers
203 views

Parametizing parabolic nurbs surface

Wireframe of nurbs selected, default z-surface parabola underneath How to model an accurate parabolic mirror with a known focal point? Animating z surface math functions Reminded me of an afterthought ...
batFINGER's user avatar
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3 votes
1 answer
109 views

Surface material properties on geometry level

I am very new to 3D surface/object design and rendering. My goal is to generate image data for testing computer vision algorithms. I want to simulate/render a painted surface which is not completely ...
Micka's user avatar
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0 answers
466 views

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 ...
Mohd Arafat Hossain's user avatar
1 vote
2 answers
806 views

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 ...
arum's user avatar
  • 13
0 votes
1 answer
581 views

Merging nurbs sphere with cylinder [duplicate]

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 ...
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1 vote
0 answers
64 views

How to turn off editing an object with NURBS [closed]

I'm trying to edit my object in edit mode, but it is slowing down my computer. I figured out that I turned on nurbs, but I'm not sure how I did that. Now I can't turn off nurbs to edit my object ...
Sarah's user avatar
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1 vote
1 answer
65 views

Curvy hard surface

I am running into a bit of a struggle here with a curved surface and was wondering if anyone could provide a tip to mode this. I highlighted the panel in green and the curved '' flow'' in orange. ...
Rachquiat's user avatar
0 votes
2 answers
65 views

Surface Edges Appear Beveled

I extruded a curve and the result has the right geometry but the shadows appear wrongly on the flat surface. How/what do I have to adjust to correct it? I already checked for duplicate vertices.
Charlie T's user avatar
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1 answer
190 views

Changing the shape of a Nurbs Path that's already animated

I don't think I asked my question to its fullest earlier. I have a NurbsPath animation. The tube NurbsPath shape wraps around the cylinder. Is there a way to alter the shape of this object (NurbsPath) ...
artmajor1's user avatar
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0 answers
59 views

create 2D surface which exactly covers given irregular surface

I want to make a 2D surface which exactly follows the undulations of another surface. If the given surface looks like the attached one; how can I create another surface which exactly covers it without ...
anildadj's user avatar
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0 answers
312 views

Camera not staying on nurbs path

my camera won't stay exactly on the nurbs path (there's a small space between them) and then it randomly jumps onto it near the end. I've checked for any rogue keyframes, cleaned keyframes and made ...
Dan Abel's user avatar
1 vote
0 answers
545 views

How to snap NURBS Surface Curve to vertex-es?

I've noticed strange difference between how snapping work for NURBS Curve's and NURBS Surface Curve's - for the second, it always snap to increment, even if different snap target is selected. I mean, ...
rufanov's user avatar
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0 votes
1 answer
523 views

Curvature combs/ curve and surface evaluation tools

I have just started learning about blender and came from the world of Alias Auto Studio. As I try to play with the Nurbs curve tools, I couldn’t find any tools to help evaluate curve and connection ...
Chop's user avatar
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0 votes
0 answers
142 views

Object dissappearing when rotating

I m new to Blender and I am using Blender 2.8 My problem is that after an operation where I loft a Nurbs circle along a NURBS path using bevel and applied a subsequent taper using a second NURBS cirle ...
Garry's user avatar
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1 vote
3 answers
261 views

Can't patch nurbs

Someone know why when i press F to patch between 2 nurbs curves it just connect the 2 spines instead of patch them? Thanks!
matibuc's user avatar
  • 189
4 votes
2 answers
633 views

Why does cloth simulation not work on a NURBS sphere which has been converted to a mesh?

I have created two spheres: A UV sphere with 48 segments and 24 rings A NURBS sphere, which I converted to a mesh using Object -> ...
devrobf's user avatar
  • 143
1 vote
0 answers
403 views

How to get a 2D silhouette of a 3D mesh in Blender 2.8? [duplicate]

I would like to just take a 2D silhouette outline of a side of one of my 3D meshes. I located the question How to extract side-view outline (e.g. top view) of a 3D object to 2D surface? but since it ...
Forrest's user avatar
  • 135
1 vote
1 answer
597 views

Creating a smooth spherical surface

I am designing some parts for 3D printing and I have been banging my head for several days already trying to accomplish the following: I have a "frame" that looks like this: I am trying to create a ...
JJRobot's user avatar
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1 vote
1 answer
3k views

Can we extract just the outside surface of a 3D model?

I am new to using Blender and wanted to know if this software can serve my purpose before jumping into using it. I have CT(Computed Tomography)-scanned an object and exported the mesh into a PLY file....
Kwanmok Kim's user avatar
1 vote
1 answer
933 views

Curves: how to make circular shapes within curves

Is there a way to make a "perfect" circle with the points of my nurbs circle (the ones around the cursor)?. I tried "as sphere" and "bend angle", but the results are not very satisfactory. Ideally I'...
Edo Lat's user avatar
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1 vote
1 answer
451 views

How to make a Morph Object follow the surface of a model

I'm trying to create a character with admittedly unorthodox eyes and pupils. What I'm attempting to do is make the pupils in 3D and them change their shape using morph targets, a little like the 3D ...
Safe By Voice's user avatar
0 votes
1 answer
833 views

Drawing a nurbs curve along a surface

I think I've asked this question once before, but I am not sure if anyone out there has an answer. My question is, is there away that I could draw a Nurbs Curve right along a surface? As in the Nurbs ...
Daniel Rahmani's user avatar
0 votes
1 answer
3k views

Particles don't follow curve

I'm trying to create a traffic simulation with the particle system. I want to create a lot of cars that walk along a path...I'm just following this tutorial : The problem is that when I setup the ...
Marietto's user avatar
  • 1,377
10 votes
2 answers
4k views

How to extract side-view outline (e.g. top view) of a 3D object to 2D surface?

I want to make some 2D version of 3D particles. I used to shrinkWrap the 3D mesh to a plan, and draw NURBS curve manually along the boundary. However it is too time-consuming! Is there any easy way ...
KOF's user avatar
  • 153
1 vote
1 answer
298 views

Sampling points of a nurbs surface using projections

I'm trying to sample a nurbs surface given certain constraints. Basically I'm trying to reproduce in 3D the following 2D situation. I don't know how to do this in 2D either so I need suggestions ...
user8469759's user avatar