Questions tagged [bezier-curves]

A Curve is an 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. Use this tag for questions about curve object types in Blender.

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21 views

how to get 3 balls with physics to animated plane working

I have 3 balls "on" a plane, all with rigid bodies and active. I have an animated plane with hook and tried both, passive and active, the balls are not reacting correctly to my animated ...
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40 views

Add a vertex to the end of a Bezier curve

Can I add new a BezierSplinePoint to the start and end of a given curve in python. I'm thinking something like this: ...
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76 views

Baking a curve animation so it can be imported into unity (Blender 2.79)

So here's what I've done in order: I've modeled a spraypaint stencil, to be used in the title animation in my unity game. I made a bezier curve, and gave the stencil the Curve modifier. I turned on ...
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94 views

Delete a single vertex from a spline

I want to create a curve with 4 points in python. So i figured that I could subdivide a primitive curve twice and delete one of the points. The code below kinda works by selecting a single point and ...
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16 views

Why do curves stop working entirely when I try to change the Spline Type?

Here is a video example of the issue LINK: https://streamable.com/q7089z The same issues occurs when I change the spline type on every vertex.
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17 views

Loosing curves on an object when exporting to STL

My goal is to create a vase, that will be painted by KUKA robot. So I need to export it from blender in STL format for robo software to understand. I made a vase, and I make curves, which will be a ...
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35 views

Force field … type [force], shape [curve]

Goal: Particles adhering to Path and Moving along Path ... some noticeable movement. Current Failure: Particles adhere to Curve but do not move on path of Curve. Particles travel to nearest point on ...
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98 views

car model is deforming on follow path curve

I have just started learning Car rigged animation by watching this tutorial ( https://www.youtube.com/watch?v=8EQoi4JlCbc&list=PLwOTLVdj6xMb6c-UQltK1Loru0kgJ1BQv&index=3 ) the car on the path ...
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1answer
55 views

Animate Soft Body Along Curve (Holding Form)

I'm trying to animated a shoelace along a curve that spells out a word in cursive. I know the simplest way is to just keyframe an offset along the curve but I'd like to have the shoelace being a ...
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27 views

Python script: problems in adding curves_galores

I'm trying to create a batch array of curves galore changing randomly the parameters. I've created a script that works but since I could not find bpy.ops.curve.curveaceous_galore_add I needed to use ...
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22 views

How To Reset Curve Profile with Script

how can i remove all points or reset curve to default ? (use code)
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2answers
183 views

Complex cable animation issue

I'm making a cable animation. The first attempt was to use curve modifier, but the issue here is that the connector gets deformed as well. I've tried a different approach, by separating cable to ...
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PC2 file format for Splines

I'm using a MeshCache modifier with the PC2 format to animate a NURBS curve. I'm having trouble figuring out the correct ordering of the data in the PC2 file format. I.e. is it ...
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22 views

Why cant I animate using shape keys or locroc

Thank you for looking in to my problem. I am having an issue applying shape keys or loc roc to my scene. I am trying to animate one of the tentacles i have or just have shape keys move the mesh so ...
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1answer
117 views

How can I fill a “spinned/screwed curve”?

I am trying to make a cross-section of an object with a rotational symmetry. I thought using a curve for the cross-section with the screw modifier would be a better way to do that than using boolean ...
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38 views

How to convert curves to bezier?

I'm trying to make this hair particle system work on a filter. I converted it to mesh, then converted it to curve and now the file it's way to heavy. I read somewhere that I could convert to bezier so ...
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18 views

How to convert back hair mesh to hair strands?

I have a problem I converted hair particles to mesh, and then to curves so i can make some arrangements, but now they don't look quite right, is their any way i can make them(curves) look like hair ...
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1answer
35 views

Attaching mesh to curve messed up

Using What is the fastest way to add vertices to a curve at a specific point? I've create a curve, and tried attaching a mesh with an array modifier set. This is what happened (.blend atached): My ...
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1answer
109 views

How to hook a vertex of a curve to a certain object?

I'm trying to hook a curve vertex to an object and this method works perfectly: bpy.ops.object.hook_add_selob(use_bone=False) The problem is when I try to do this ...
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2answers
246 views

How to make non-linear movements with a Follow Path constraint?

I try to achieve a non linear movement with the Follow Path constraint. I linked my object to a bezier circle using the Follow Path constraint. It follows the circle with a linear movement, meaning ...
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1answer
53 views

How can I bend a surface into a cylinder?

Ive got the mesh that is made up of hexagons and I want to curve it into a cylinder following the curve (circle) that is in the middle. Any tips?
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1answer
83 views

Curved grid - Cycles vs. Eevee

I'm trying to create a simple animation moving the camera through a curved tube, which has a .png image (just a grid) mapped on it. My problem is that I see some differences in the lines when I export ...
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2answers
88 views

Non-smooth curve and taper

I would like to make a bent cylinder with varying radius. Taper and Bevel seem like a good way to do this, however, I would prefer that the Taper curve is not a spline but a polyline, so that I can ...
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33 views

Defining locked start and end points on turbulent splines in Animation Nodes

I'm attempting to make an animated "sound wave" effect using AN. So far I have the bouncing spline looking the way I want it -- How do you define specific points along the spline to NOT ...
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1answer
212 views

Boolean with bevel bezier curve

I have loaded an stl file and want to do some boolean stuff on it using python API (see code below). First I create the bevel spline and move the end points where I want them. Then I create a boolean ...
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1answer
267 views

Spiral rotation falloff within a particles system

I am trying to model arrows arranged in spiral manner. The effect I want to achieve is similar to the one in the picture: Essentially, I want to have the arrows rotate and tilt inwards in a radial ...
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19 views

Can`t make the right looking bevel text, need some help!

So Im trying to do beveled text but it always appears with some kind of holes/creases that follow the shape, the text looks somewhat better in the Edit mode, anyway can`t figure it... I want typical ...
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23 views

array dublicate rotated individually along curve

How can I make an array follow a curve AND control a tilt or rotation of the individual duplicates along the curve? I've tried out including a lattice modifier in the stack but controlling it ...
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1answer
52 views

Trying to bevel a circle along a path, and getting a flat papercli[p

I am using Blender 2.90 on OS X. Sometimes just writing it out to everyone helps me resolve the issue. I created a path in Affinity Design and imported it as SVG. I do that a lot. I want to make a ...
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27 views

Aligning multiple objects along a shaped line

Building a human skeleton, trying to learn new skills apart from sculpting, so for the spine I wonder what the best way would be to align the vertebrae along a spine-shaped line. I drew the line as ...
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1answer
33 views

For loop splines amplified ! , why? How can I stop it?

I am creating a for loop to connect pairs of objects by a Splines To understand better image atoms in a molecule. It seems that every time I create a new spline is in someway taking in consideration ...
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1answer
93 views

Measure length of “curve” (or similar) by drawing on mesh

I know there are a million answers on here about measuring the length of a curve (like this one, which is pretty much what I want to do) but I feel like this situation is a tiny bit different. I have ...
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1answer
523 views

blender 2.9 curve handles not visible until selected

In previous versions once you go to curve edit mode you see all curve control points handles. But in 2.9 it's only dots. To see handles you must select control point first This is not ok if I want to ...
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69 views

Blender 2.8+ Editing Spiral Curves

I've looked everywhere looked through every menu, and for the life of me I can't find the spirals menu in blender 2.8. I can't add turns or steps to my spiral curve, can anyone tell me how to bring up ...
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38 views

Timing Belt Alignment Troubles

Im Making a Cosworth BD Series Engine and im having an issue in aligning the Teeth on the timing Belt Without altering the rotation of the crank and camshafts or their Pullies. The Belt Used has 146 ...
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32 views

An object moves along a curve, but followpath doesn't match the curve bevel resolution

I want a car in blender to move along curves, and use curves to represent the trajectory of the car. The speed of the car is non-uniform. I have used the bevel_factor_mapping_start of curves to ...
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1answer
240 views

Can't edit beziercurve, handles are not visible

Using blender 2.90.1 i'm trying to make a knot using a bezier curve. Suddenly I can no longer edit my bezier curve. In edit mode the handles are not shown (see screenshot). My overlays are turned on ...
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35 views

NURBS Path not extending all the way to tips

I have two Path objects that I've joined into a single object here for comparison. The one above was generated with a Python script. The one below was added the typical way from the menu Add > ...
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0answers
65 views

Add > Path with custom geometry using Python [duplicate]

I am writing a Python script and in part of it I want to do an Add > Curve > Path operation, but instead of the default 5-vert straight path, I want one at the object origin (which I have pre-...
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55 views

Can I control the generation of UVs on geometry genertated by curves?

I've been getting into using blenders curves to generate hair and other long tentacle-like shapes. I'm finding I'm running into problems with UV mapping. By default, the generated mesh has UVs that ...
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0answers
37 views

How to make a spiral track less aggressive near the start and end

I've imported an FBX file form the Unity karting microgame learning project and am trying to reproduce their spiraling track. So far, I've managed to deduce that they used a bezier curve and then a ...
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1answer
53 views

How to Inset Text/Curve Mesh?

I am wondering if there is an easy way to inset mesh that is generated from text/curves? When I convert text to mesh it generates a bunch of uneven triangles that don't inset properly. My only ...
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0answers
14 views

Ongoing orbit animation [duplicate]

I'm trying to make an orbit animation and I did so by using this video: https://www.youtube.com/watch?v=K02hlKyoWNI&t=182s When the keyframes were set I went to graph editor. There I used the key ...
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1answer
45 views

Separate 2D curve offset as new curve

Is there away to save the offset of a 2D curve as a new curve? I've tried to achieve the same result with curve > transform > push/pull, but this didn't give the results I needed, because the ...
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0answers
35 views

Resize multiple objects at once

I have a specific shape (curve), the height of that must be adjusted to given dimensions, on an exact 1.4-2mm scale. However, its width should also be adjustable. At the moment, there is nothing wrong ...
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4answers
2k views

How to make a curve behave like a squeezed tooth paste (to born from a moving object but to stay on ground)

I'm trying to make a curve to behave like in the image, without success :( I tried to search for an answer but couldn't find. Particles are a bit of out of the question here since I need super-clean ...
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1answer
39 views

Automatic division of a Bezier curve with a given ratios

I use a curve that serves as the cross section of a ring. Since I want to make not only solid coloured rings, but also 2 and 3 color rings, I want to divide the curve. However, I currently do this ...
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2answers
73 views

Wave grooves on (ring) mesh

For straight grooves, I use the Bevel tool, and some simple extruding and scaling operations. However, I also want to place an oblique line on a ring (so seperate the ring into two piece for a 2 ...
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1answer
102 views

Advice on how to model this piece of a chair?

I'm trying to model the Yksi Chair from the Fredericia website. I've modelled a couple other simpler pieces of furniture, and I'm doing this for practice. I can do pretty much everything, but I'm ...
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1answer
43 views

Overlay curves on top of mesh

Let's say you're following this tutorial https://www.youtube.com/watch?v=Nn7mISvVzJk but the curves get lost inside the mesh. Is there a way to always see the curves on top of the mesh, kinda how ...

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