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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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 ...
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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 ...
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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 ...
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2answers
32 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!
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2answers
367 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 -> ...
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76 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 ...
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1answer
119 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 ...
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19 views
Nurbs Paths Not Rendering Texture Correctly
When I Render My Nurbs Path The Colour Doesn't Render Fully But In The Render Preview View It Is Filled Ive Tried Different Lighting Techniques And Other Render Presets.
I Need Help On What I Could ...
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356 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....
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1answer
206 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'...
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1answer
107 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 ...
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1answer
309 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 ...
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1answer
1k 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 ...
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2answers
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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 ...
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1answer
158 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 ...
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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 ...
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2answers
181 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 ...
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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 ...
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145 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 ...
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1answer
698 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.
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1answer
299 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 :)
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353 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, ...
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1answer
317 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. ...
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251 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 ...
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1answer
868 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 ...
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1answer
68 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/
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1answer
373 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 ...
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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 ...
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0answers
67 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 ...
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35 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 ...
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3answers
9k 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 ...
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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?
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1answer
922 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 ...
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2answers
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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 (...
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2answers
454 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 ...
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1answer
669 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.
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624 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 ...
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1answer
48 views
Nurb Interface Tool question - lost my way
When I add a Nurbs curve now I get the wrong icon and no hairy catapillar. Whaa, What did I do?
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1answer
381 views
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 ...
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1answer
3k views
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?
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3answers
610 views
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 ...
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1answer
396 views
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.
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1answer
214 views
Surface cannot be created with nurbs curves by pressing F key [duplicate]
I followed several tutorial to create a nurbs curve, and duplicate it in edit mode. Of course I pressed A key to select all points and F key to create surface. But there was no surface be created, a ...
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2answers
4k views
What are surfaces and metaballs used for?
I use very often meshes and curves, because I know what they are used for (meshes for renders and curves for follow curves). But I actually don't use surfaces and metaballs. What are surfaces and ...
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3answers
966 views
NURBS surface from branching curves?
I'm looking for a way to do something very similar to the technique using the skin modifier, but with NURBS. In other words, I'm looking for a way to do something similar to a convex hull, but not ...
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2answers
1k views
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 ...
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0answers
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what does manifold mean in context of surface building [duplicate]
This question is different as I seek to know a particular context of this subject i.e. wrt 3d printing.
It is important for me to know what this means.
" So, projection onto the first coordinate ...
4
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1answer
662 views
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 ...
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0answers
480 views
Create a Nurbs Circle Surface using python
I am trying to achieve the following post
I see doing this two ways.
Create a large circle and small circle and fill the inbetween.
Perform the same steps as the GUI programmatically, create NURBS ...
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723 views
a single face in an object is shiny in solid mode and showing a strange gradient color in render
This is a door that I'm making. There is nothing special about it. It somehow has one face (A) that is different than others. I've tried flipping the normal, deleting the face and remaking the face. I ...
