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A Curve is a object that is expressed in terms of mathematical functions, rather than as a series of points such as vertices. Use this tag for any questions pertaining to the "Curve" Object type in blender.

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Freestyle: control the Thickness of stroked curve using Radius?

(My english isn't very good, do not hesitate to edit my question) I'm currently searching the best way to draw some 2D shape using blender. For the moment, I've found some interesting technics. One ...
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Why i can't get smooth bevel?

I have a curve and with the default circle im making a bevel like a pipe. Im not getting smooth pipe feeling bevel with the curve. Why there are cut or up and down with the bevel. Any suggestion or ...
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30 views

Stretch or extend curves dynamically based on mesh translation (or rotation)

I recently started using Blender for a project involving multiple cables (or ropes) connected to the same object. Let's say, for instance, this is my set-up: - two cylinders containing a rolled-up ...
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2answers
40 views

How to clean up these curves

I got the following curve But in edit mode it is ridiculous messy. It looks it's really small, but if i hit Ctrl+A (Apply) > Scale nothing will change. Why does my Curve not apply the scale?
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1answer
65 views

Arrow animation in 2D

I think I have understood the basic principles of animating an arrow traveling along a curve. My problem is that my arrow becomes twisted as it travels along the curve. What is it that I do wrong? ...
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1answer
46 views

Missing panel on blender 2.79

There is this panel that is on multiple tutorials I have watched which I cant find. Please help, I am getting really frustrated.
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2answers
62 views

Extrude object along curve not working

I'm trying to create a series of arches based on a single molding profile. I've created each arch as a curve and the plan was to then take the profile (a single face at the moment) and extrude it ...
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1answer
26 views

Coloring bevel curve with vertex color

I'm working on a visualization problem. I'm given a curve with a list of vertices. There is a color assigned to each vertex. My question is "how do I generate the bevel curve by linearly ...
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3answers
75 views

Curve path on sphere

I have a sphere with mapped imaged of the earth. I want to show a tiny sphere following the path along from one point to another like and airplane. I did this already representing a ship on a flat ...
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2answers
16 views

Importing vector lines (SVG) as Curves

I got the following line drawing in Illustrator. As I export it as SVG and importing it in Blender. Blender automatically creates from the seperate lines closed Curves. How to import a SVG without ...
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1answer
21 views

Morph Text from Horizontal to Curve above

How is the best way to morph text from a Horizontal to an Arc above it? When I add the Curve Modifier to my Text it instantly get transformed. Thus, I am unable to lock (keyframe) the start. Can ...
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2answers
47 views

Using Array modifier, is it possible to gradually increase the offset?

I have an oblong circle of sticks (using array and curve modifier), but I would like to increase the offset gradually in two places(as shown on the screenshot). Does anyone have tips on how to ...
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1answer
21 views

Looking for advise on modeling/faking lots of rope

Another question for my Titanic model. I’m wondering how to efficiently add the rope arches on the lifeboats. My first thought is using curves and an array modifier to add long cylinders with a rope ...
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4answers
78 views

how do i make a ramp around a corner?

how do i curve a ramp around a corner like this? whenever i try something, it's just frilly. is there any good method to do this? EDIT: people didn't understand, so here:
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2answers
81 views

Assigning shape key to a curve

To create a shape key of a curve we need to start with the curve's base geometry and then move the points in edit mode to have the new form, that's assigned to shape key. Is there a way I can directly ...
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1answer
43 views

Join curves with Python by color

I'd like to group curves by color, so I'm try to join them together. I used an override from this solution. Everything works splendid inside Blender but in my external program I have ...
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1answer
34 views

Bending objects along a curve

I do not know English, so I will use a translator. how can you curve the mesh at angles? That is, there is a curve, and there is a cube, you need to bend it along the curve but that it is bent along ...
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16 views

Is there a way to draw a nurbs curve right on top of a surface?

I am trying to make a wire harness for a car, with many wires and different Depths. I used to use the method of Shift+A / Curve / nurbs cuvre, this way is still decent, then I found the grease pencil ...
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1answer
51 views

I need help trying to create piping that goes along a curved surface for half of it, then curves out away from the surface

Not sure if my explanation makes sense. I'm making a 3D model of the Titanic, and for most of the Smokestack piping I've been using the shrinkwrap modifier to attach curves to the smokestack, but the ...
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47 views

Animate Curve along mesh surface

i am trying to find a way to aproach, animating a curve along a mesh surface, like having a wire creating a mesh. I thought about having a curve snapped along the mesh and then animate the wires. Do ...
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49 views

Rendering “Hand-drawn” Curves on Surfaces

As a mathematician (a topologist), I'm constantly creating diagrams similar to those shown below. My broad goal is to make these diagrams look more professional by drawing (modeling?) them in Blender ...
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35 views

Is there a way to tilt all points on a curve torwards the center of the world?

I'm modelling a street around a planet with an increasingly complex Terrain. I used the Shrinkwrap modifier in the beginning which worked well as long as my planet was just a sphere. By adding more ...
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34 views

How do I get the length of a curve in blender?

So I want to move an object along a curve exactly once. In order to do that I am using the curve modifier along the x-axis and I am going to animate the object. Is there any way to find the length ...
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Weird distortion in bezier curves [duplicate]

I created an logo in Adobe Illustrator and then exported it as an svg using the export option feature. I imported it in blender. I used extrude option in the curve layer menu. I get this weird "...
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1answer
23 views

Measurement of the “Straightened” length of a path

So, I'm having a bit of trouble with scaling. An object I'm making involves the use of a path to form a curved surface, but I need the resulting curve to be within about 1% of an exact length. So, if ...
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1answer
43 views

Strange lines displayed in Edit mode after importing SVGs into blender

I have a simple SVG file (plain, not Inkscape). I have imported it and scaled it up 2 or 3 times. When I switch from Object to Edit mode it seems like I have a ton of scattered points. Object mode: ...
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1answer
32 views

Modeling a car wheel arc: Move vertex to form an arc

I'm really noob with Blender and 3D modelling in general. I started modelling a *very* low polly car, and I wasn't careful at all about the topology, little by little I started adding some more detail ...
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38 views

Using a curve's calc_length() method in a driver expression?

Recently I've dipped my toes into Blender's drivers & expression system. I'm trying to scale a road to exactly fit the length of the curve it's following. I came across this post of two years ...
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1answer
41 views

Creating a “bubble” shape lense for goggles

I have made these spiderman styled goggle frames for a project I am working on, after modelling the frames I duplicated the inner edge of the goggle frames, split to a new layer and then inset this ...
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1answer
54 views

How do I achieve a bending effect with the collision of two rectangles?

I am trying my best to re-word the problem I am having. I have 3 objects bounded on top of each other. I will call that square 1. I have duplicated square 1. The duplicated object is named square 2. ...
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43 views

Intersecting Curves with meshes

Is there a way to create a vertex at the intersection between a curve and a mesh? I have a 3D model of an object that I want to detect in the real world using a point cloud. Since the point cloud is ...
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How to use spline ik with curve with modifer applied? (How to use splike ik, for snake movement animation ?)

I try to use Spline IK Constraint to make "Snake move". I have armature with 4 bones, and I apply Spline IK Constraint to it. Its don't want to work with curve after modification, it uses curve ...
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23 views

Double face curve when using profile and bevel

I have a curve which I want to use as a profile. I also created a mesh object (not closed) similar to an open cylinder. When I draw a new curve and apply the curve to taper object, and then apply the ...
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1answer
27 views

How to make this object child of another object, and conform to a curve at once?

I have an Asteroid object. It's following a path with the Follow Path constraint. Now I have a Tail object. I need it to stick to the Asteroid object, and at once conform to a curve, the same path ...
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32 views

How to Get a Smooth Curve?

I have created a long cylinder with lots of loop cuts: When I apply this to a curve, the result is still very 'chunky': My curve modifier is like this: Is there a way to get a smoother curve?
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Road not vertically following curve, but following horizontaly

The thing on the screenshot is a inside of a terrain (and blue is sea level) and that road shouldn't be there, the curve is using the shrinkwrap to follow the terrain and that's working fine as you ...
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1answer
36 views

Flipping the direction of bezier curve path for a crown molding [duplicate]

I am trying to make a crown molding with bezier curves where I make a path along the wall, and then in Bevel object, selecting a profile of the molding that I made with another bezier curve. When I do ...
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1answer
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After converting a mesh to a curve , how to have a smooth curve?

i have converted a square mesh to a curve , so i have a really narrow agle i didnt find any way in the curve editor to modify that , and i cannot change the handle of this cuvre ..i just want to ...
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1answer
20 views

Need help with basic armature stuff

I´m a newbie with blender and this is probably very basic stuff I´m asking, but I really can´t get my head around this. I have a snakelike mesh I would like to slither in place like a wave but having ...
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31 views

Generate square “skin” around a line for icon solidifying

I'm quite new to blender/modelling, and though I have made a few successful pieces previously, I'm having an issue in generating an object for 3d printing. I am essentially creating a series icons, ...
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62 views

Wtf is going on here?

I am creating a model of the nurburgring from an image using bezzier curves, I outlined the track, and used the array and curve modifiers to follow the path of the curve. I ended up with a result that ...
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1answer
25 views

Stopping Follow Path at the beginning

I'm mixing animations in NLA editor, and I want start with follow constraint turned off. For example, I want my character to wave, and then play the walk cycle with follow path. The keyframing ...
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1answer
28 views

2D animation, Line between meshes

I'm pretty new to blender so it might be a silly question to you. I try to create a 2D animated logo I was able to animate two mesh objects, both move around. Now I want to connect both with a line. ...
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1answer
65 views

Place/spawn objects along curve with randomized scale and rotation?

Is possible to place/spawn objects along curve with randomized scale and rotation? I'm looking for lazy way to create flowers and randomized procedural patterns. Thanks
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1answer
31 views

Wrapping a flat object around a cylinder and joining it

I'm trying to make a nanotube model and while I can get the flat structure to loop around a circle, I'm not sure how to join the ends of it into a complete structure. I started with the flat structure ...
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23 views

How to set active control point of a curve using python

I'm failing to set the active control point of a nurbs curve using bpy. For context, I'm trying to add a hook to a selected pose bone. The following snippet demonstrates the idea. A pose bone is ...
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34 views

modeling repeating patterns onto a curved surface

I'm in need of help. I am trying to create a curved object that needs to have a repeating honeycomb pattern modeled into it. I tried a lot of stuff already but I don't get anywhere near a good result. ...
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Spline IK modifie by a Curve modifier with involuntary rotation

I'm new with Blender and I love it :) But I have some problems with « SplineIK » and « Curve modifier ». I need to animate many fish swimming in a circle and import it in Unity 3D. So I want an ...
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1answer
54 views

follow path not working correct way

I have a mesh and a curve and trying to make follow path. I have selected the mesh and then curve and press Ctrl+P and selected follow path. But the mesh is not moving in the curve shape. Its bouncing ...
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copy curve “shape” and apply it to other keys

I don't know if the title of my question is clear enough. I was wondering if it was possible, in the graph editor, to copy the "curvature" of some keys (A & B) and to apply it to other keys (C &...