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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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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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0answers
772 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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496 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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87 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, ...
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0answers
844 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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162 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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272 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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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 ...
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0answers
1k 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 ...
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23 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 ...
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19 views

How to close a NURBS cylinder?

I encountered the same problem as described here :http://forums.cgsociety.org/t/how-do-you-close-a-nurbs-surface/1438485 I can't close the two extremities of a NURBS cylinder. Is it possible ? Thanks ...
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27 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 ...
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23 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 ...
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57 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 ...
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11 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
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1answer
29 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) ...
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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 ...
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0answers
22 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 ...
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27 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 ...
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41 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?
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98 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 ...
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73 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 ...
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1answer
186 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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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 ...
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405 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, ...