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.

Filter by
Sorted by
Tagged with
0
votes
1answer
30 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 ...
1
vote
0answers
20 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 ...
0
votes
0answers
25 views

NURBS surface to mesh logic in blender source

I'm trying to dig into the logic of "Convert to mesh from Curve/Surf" functionality in Blender but unable to pinpoint the exact source file where this logic is taking place. In my walk ...
0
votes
0answers
22 views

how to bevel curve without problems?

i want to make curved surface , so i add a Nurbs path and play with it to have the curve profile that i want to bevel it with Nurbs curve , the proble is start to overlapping and make some sort of ...
1
vote
1answer
30 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. ...
0
votes
0answers
47 views

How do I Add Vertices to a NURBS path?

I'd appreciate any help with this simple script that I cannot get to work properly for Blender 2.8+ All I want to do is to take a selected NURBS path as input, and create a new NURBS path that is ...
0
votes
0answers
10 views

nurbs path join breaks during rigid body simulation

I joined two nurb paths in inverted T shape to create a scale balance to show the equilibrium reached after the scales are swung around a pivot. The initial position is raised at 60% and I am ...
0
votes
2answers
53 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.
0
votes
1answer
28 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) ...
0
votes
0answers
24 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 ...
0
votes
0answers
21 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 ...
1
vote
0answers
74 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, ...
0
votes
0answers
25 views

How to create a surface form NURBS? industry-standard set up

I am trying to model an organic surface and I am using the NURBS curve to create a wireframe; I want to then generate a surface form the curves but I can't do it. I saw a tutorial where they press f ...
0
votes
0answers
39 views

NURBS Knot vector

I'm trying python scripting on blender to model geometry and perform analysis on it, for that I need to find Knot Vector of NURBS geometry. Someone please guide me to get this Knot vector?
0
votes
0answers
79 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 ...
0
votes
0answers
64 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 ...
0
votes
0answers
52 views

How to create Curve Networks / Coons Patch

I am missing an option that is great for working with complex surfaces namely Coons Patches. The wikipedia article shows an example of how this looks for four curves that create a surface. In best ...
1
vote
2answers
66 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!
4
votes
2answers
456 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 -> ...
1
vote
0answers
243 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 ...
1
vote
1answer
337 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 ...
1
vote
0answers
782 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....
1
vote
1answer
301 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'...
0
votes
1answer
173 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 ...
0
votes
1answer
501 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 ...
0
votes
1answer
2k 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 ...
7
votes
2answers
2k 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 ...
1
vote
1answer
190 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 ...
2
votes
3answers
3k views

Can we smooth selected faces to make curved surface more precise?

Is there a way to smooth selected faces to make curved surface more precise? This kind of mathematical accuracy is of course easier achieved by using nurbs oriented workflow, but it could be handy to ...
1
vote
2answers
225 views

How to make evenly spaced pillars for a roller coaster track?

I am a beginner in Blender. I am making a roller coaster and I want to put an array of stands under my roller coaster tracks. To do that, I used DupliFrame on my pillars, parented them to my NURBs ...
0
votes
0answers
65 views

Convert a Normal Curve to NURB with less control points/Curve points

I have a Human spine cross section image and I am trying to develop it's 2D surface model in blender as I feel its more flexible than CAD design software( Solid Works, Solid Edge etc). I have data ...
1
vote
0answers
160 views

Join multiple NURBS circles without collapsing circles/losing positions?

I'm trying to join and fill multiple NURBS circle surfaces (similar to the YouTube video here https://www.youtube.com/watch?v=_kGmh9r6pkE) but when I join my circles, they collapse into one circle, as ...
0
votes
1answer
1k views

How to remove lines from wireframe…?

I made a surface and added a wireframe modifier on top of that. I want to remove just horizontal lines from the mesh. How can I do that..? Please help. I have highlighted it in the picture below.
1
vote
1answer
410 views

How can I make this surface in blender…?

How can I make a surface like this....? I made this using nurbs in maya. Please Help. Thank You :)
0
votes
0answers
400 views

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, ...
0
votes
1answer
415 views

Distorted mesh when I use a bevel object on Nurbs curve vs. Bezier curve

I have a series of objects that I have procedurally generated use Bezier or Nurbs curves for which I then attached a Bevel and Taper object. When I use a Bezier curve the objects come out correctly. ...
1
vote
0answers
271 views

Is it possible to have mesh with NURBS editable surface

I have a mesh that has flat top and bottom and I want to know if it's possible to edit the top and bottom just as if they were NURBS surfaces. I have an example cube and two NURBS surfaces: And I ...
0
votes
1answer
1k views

How do I select Edges?

I apologize in advance for asking such a beginners question, and I assume this will come down to my view/window being wrong. I used Blender a few years back, and I am familiar with how shapes work ...
2
votes
1answer
69 views

How to bring 3d effect in surface?

Can anyone tell me how this surface looks like 3d which covers red sphere and blue cylinders. see the blend file here https://blend-exchange.giantcowfilms.com/b/3570/
1
vote
1answer
487 views

Conversion of fine organic surface mesh to a few patches of NURBS

Note: cross-posted in stackoverflow as well. Would this be OK? I have a very fine mesh (STL) of some organic shapes (e.g., a bone) and would like to convert it to a few patches of NURBS, which will ...
15
votes
1answer
1k views

Automatically draw hidden portions of paths with dashed lines

This is a follow up to a question of mine on TeX stackexchange site. Is it possible in blender to have an open surface that would render as opaque but the render would show automatically, depending ...
1
vote
0answers
71 views

Q Automated surface generation?

I have a NURBS surface definitions (i.e. the control node positions) but want to automate the generation of the surface in Blender. Currently I generate a flat regular grid of control nodes by ...
0
votes
0answers
37 views

Bend object with curves modifier [duplicate]

I'm trying to make Wheat How to bend this object without affecting target size? When I add this Object in Curve modifier with NurbsPath in object section my object changes sizes and moves, looking ...
3
votes
3answers
11k views

how can I make a mesh from curves?

I'm trying to mesh a rear wing of a vintage car. I've done some Bezier curves and converted them into mesh. I have the same amount of vertices, so I should be able to connect everything together but I ...
2
votes
2answers
1k views

How to bend nurbs surfaces

I modeled a simple flat square, adding thickness by extruding. Now I want the Surface to not be flat but a Kind of buldged. How do I accomplish that?
3
votes
1answer
1k views

How to get a straight Nurbs

I have added a nurbs curve. Im extruding it in the L direction and i do not need that curve shape. On the red axis its going straight but when i turn to green axis it makes a curve. With the orange ...
1
vote
2answers
1k views

how would you texture map a rope?

I would like to make a rope for a game object (so it should be fairly low poly). I know how to divide a cylinder into segments (K key with Z key) and form it around a nurbs path. for my game engine (...
1
vote
2answers
633 views

Can't fit plane to nurbs path to create a race track

I'm new here and I'm making a racing track for Assetto Corsa. I don't know what's exactly happening, but something doesn't let me to apply a Curve modifier to a plane. I'll explain myself: to make the ...
2
votes
1answer
777 views

Mesh curve to Nurbs

I'm new here. I'm want ask you if there is the possibility to transform the curve that comes from subdivision surface (shown in the photo) in NURBS curve.
2
votes
0answers
761 views

why is my displacement map not sharp?

The displacement map is an animation of the letters being engraved in the metal. The animation itself works just fine. The only problem is the edges of the letters. How can i get them straight instead ...