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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Camera not tracking empty

I want my camera to track the pillows on top of the bed so I added an empty and added a constraint to the camera. these are my settings for the constraint so that the camera points to the empty Then ...
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Knot Vector in NURBS Curve (PYTHON)

I have been trying to convert Bezier to NURBS (Converting Bezier to NURBS Curve). But by clicking the Set Spline Type menu, there is no curve created. So thought of doing it through python. But the ...
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I just cannot get an object to bend along a curve properly

Using Blender 2.93.5 on MacOS 12.0.1 This is embarrassing. I just cannot seem to get an object to bend properly along a curve, with no deformations. I have followed various tutorials to no avail. I ...
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Converting Bezier to NURBS Curve

I was trying to convert a Bezier curve to a NURBS curve by clicking Curve->Set Spline Type->NURBS. But after the conversion to NURBS, the curve disappears. Is there any way to preserve the ...
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object continues past end of follow path

ive set settings to default, however when i create a object(cube)and bezier curve, then add the object constraint follow path to the cube and the curve, it follows the curve perfectly until the end ...
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1answer
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Restoring Path Smoothness After Subdivision

When I’m working with path curves, I sometimes like to dissolve the middle control points and then subdivide the path in order to achieve an even distribution. However, a problem arises when I leave ...
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imported curves (.fbx) not visible [closed]

I drew a curve network of a car in alias and tried to import in blender in .fbx format, but upon importing it doesn't show the cures in blender. any help would be much appreciated. thanks
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How can I convert a Grease Pencil object to curve or mesh without operators?

Geometry-holding objects have handy methods to get their data as an evaluated mesh : to_mesh method to get a mesh object to_curve method to get a curve object However these can't be used on Grease ...
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Trouble with array and curve modifiers for making a bandolier - Blender

First ever question, I'm also not amazing at blender and trying to learn. I want to make a bandolier for the sake of learning a more complex array modifier (and curves) but I am having trouble getting ...
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Issue with the screw modifier: unable to move an animated curve

In blender 2.93, I have created an arc then I have hooked both ends (picture 1). I could therefore animate the curve in object mode. I used the screw modifier to play with this curve. I set a 360° ...
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Need help with selecting vertices [duplicate]

Following a tutorial however I'm struggling to select the two top vertices of each line. My problem is that the middle of both the vertices as shown below have to be shown, otherwise I'm unable to ...
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Fix bad bevel at curve sharp edges

Recently I was playing around with curves and its bevel, but there seems to be an issue while trying to extrude along a sharp corner. You can predict just by barely looking at the image of how it ...
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Boolean Difference subtracts empty areas

I'm trying to create a jigsaw puzzle from a 3d terrain by subtracting a "die" but instead of leaving the puzzle pieces behind, it erases the whole puzzle as seen in the linked blender file ...
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Beam Modeling & Curve Geometry Bevel Custom Presets

I'm currently modeling a bridge and I have a lot of square beams to make. The quick dirty way I found is to use bezier curves and playing with the profile of the bevel under the geometry pane in ...
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Is there a way to snap all Bezier control points and handles to one point on the Z axis?

I created a curve that was meant to lay flat but some of the handles / control points seem to be slightly off height from the others leading to overly complicated fills. Is there a way to select all ...
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Grease pencil curve editing doesn't work

In Blender 2.93.5 grease pencil 2D animation edit mode curve editing doesn't work. The Bezier points, lines, and handles show up but can't be moved. Am I missing something? Full disclosure: I'm a ...
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"Circular Indent"?

I'm kinda new to Blender, so still starting out... How do you make this? (if Possible Step-by-Step) Can't quite find on the internet the exact way to do this... Any help would be appreciated! Thanks!
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Dynamically Connecting Points with Curves

I'm running into an issue with the new geo nodes fields that you folks might be able to help with. I'll describe what I'm trying to accomplish first, then describe what I've gotten working, and then ...
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Shape along bezier curve with multiple materials

I have a shape consisting of multiple shapes (one object total with three circles in it). I set this one shape/object as the geometry for a bezier curve to extrude it along the curve. Now I would ...
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1answer
29 views

How can I use an animated bezier curve as a boolean for a mesh?

I have a bezier curve that I have animated with an armature and hooks. It is 2D, has a fill mode set to both, and is extruded. Now, I want to use that curve to make a diff operation with a mesh. Is ...
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How to easily create and deform multiline wires?

Thanks a lot in advance for any suggestion you could provide for this topic: I am modeling a robot with servomotors, and all the servomotors have 3-line wires (a red line for input voltage, a black ...
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1answer
28 views

Trying to undeform a curve for a caterpillar [duplicate]

I am working on a caterpillar attempt using a sphere, array and curve deform modifiers on this program. But when I put on the curve, it doesn't look like as I wanted: I was aiming for an undeformed ...
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1answer
22 views

How to mirror part of closed bezier curve

I have a complex asymmetric shaped bezier curve. I'd need to mirror or flip one third of it but I can't figure it out. Here is a sample file and image that explains what I am trying to do: Here is ...
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How To turn Grease Pencil Strokes Into Curves? >Blender 2.93

How can I do this? https://youtu.be/75RawjJdEbo?t=1072 I need the same result.... The Grease Pencil into curve but get the Message: "current grease pencil strokes have no valid timing data most ...
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459 views

How to match curve path to reference photo

Is there any easy way to create a curve that matches or closely resembles a imported svg such as this one? This is not the type of curve object I want, because it doesn't allow for start and end ...
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1answer
22 views

Is there a way to select/edit all ends of curves in blender?

Basically, I want to take all the tips of curves I've made (through converting hair into mesh then mesh into curves and then applying a bezel to them from a circle curve) either select them all to ...
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Curves transparency in edit mode?

Is there a setting for curves transparency in the Edit mode, or display options? Because when editing hair with curves, it is really hard to see anything.
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Is there a way to grow this curve at a constant velocity?

Hello, I would like to be able to grow the curve shown in the gif above at a constant velocity. For the straight edges of the curve, I just don't like how they grow super quickly. It looks a bit too ...
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30 views

How to measure angle between bezier curve and object at intersection point using python?

I have a bezier curve going through a meshed body (assume the meshed body is a sphere). I want to find the angle between the curve and the sphere at their first intersection using python. I'm thinking ...
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22 views

Subdividing Curves in Blender

I have a coil in my SVG and I cannot seem to undo it. When I try moving both handles of this segment, the curvature of does not respond! So, I selected both points and went to Curve Tools > ...
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Curve: Bevel object faces wrong direction, how to fix?

so I created a curve and applied the profile of a cornice as bevel to it in order to quickly wrap a cornice around a building. My Problem is, that the resulting cornice is facing inwards though, as ...
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1answer
72 views

How do I make the ball on the curves run smoothly?

A link to project file below https://pasteall.org/blend/c79ccc9e7c1f4cb693b5df2509a6b8c7 I want to create an animation with a ball on 2 curved rails, I used rigid body and the ball is sliding but not ...
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1answer
277 views

How can I subdivide a plane with a complex contour?

I'm probably asking a very strange question, but... I've drawn a random outline with Bezier curves and meshed it to create a plane object. How can I subdivide this into smaller pieces? Is there a way ...
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30 views

Scale/inflate part of mesh along curve

I have a mesh with tree-like branches. I want to create a curve which resembles loosly the shape and make an empty follow that curve. Is it possible to scale/inflate the part of main object from zero ...
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2answers
40 views

Simulating electromagnetic wave polarization in Blender

I am trying to visualize some experiments done in my lab with wave polarization. One thing I'd like to have is a curve representing an EM wave with arbitrary polarization that I can animate. ...
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1answer
55 views

Why can't I have both clean corners and a clean build for this curve animation?

I have looked through the post: Fill along the front of a path of an SVG and can't find a solution in it. To create the above animation, I first added a bezier curve to the scene. I then applied a ...
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I have a circle shaped form drawn with grease pencil. I want to convert it to a virtual stone

At first I converted the grease shape to bezier. Then I am stuck extruding and adding some randomness like a rock. In other words, the circle shaped 2d form is the middle of the stone, it should taper ...
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19 views

Is there a way I can animate a bezier curve attached to two objects?

Let me just start off by saying this is my first time working with armatures, vertex groups, hooks, and curves. I have watched many tutorial videos, read a few blogs but none of them have helped me ...
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1answer
23 views

Object disappears when applying curve modifier

I am trying to have an object's position map to a curve. I have drawn a curve, extended it a few times using an array modifier, converted it to a mesh to apply the modifier and then back to a curve, ...
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Help Creating Shape of Object with Path

I think it would first be helpful to describe the object I'm trying to make: I am attempting a stylized comet that is looping around the earth. I want the ring that is rotating the earth to be "...
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49 views

How do I align my bevel profile curve to the curve it is beveling so that they have the same orientation?

Please have a look at these pictures. I have taken a Bezier Curve as my object curve & a Bezier Circle as its bevel profile object. Snapped Circle origin on Bezier Curve end point and rotate 90 ...
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1answer
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How can I add thickness to this animating curve?

I have imported a LaTeX figure from a latex2Blender add-on that I downloaded. I then converted the figure from a mesh to a curve. I then added a build modifier to the curve. The curve animates itself ...
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Modeling shapes like a pumpkin - How to get sharp creases using curves, screw modifier, and mesh-deform modifier

I'd looking for alternative approaches to modeling something with approximately radial symmetry like a pumpkin using a curve, a screw modifier, and mesh deform. The problem is how/if it possible to ...
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2answers
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Properly parenting a "follow path set up" to an empty

I try to parent a set up of cube parented to an empty wich is following a curve with a constraint to a "global" empty. And I don't find a solution that allow me to move my empty and keep the ...
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22 views

How do I animate a rope in Blender 9.3? [duplicate]

I'm working on an animated short that features a claw machine, but I'm having trouble figuring out how to animate the chord that the claw dangles from. Here's where I'm at: I modeled the claw itself, ...
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Fit curve not working?

So I have these two object and I want them to loop around this NurbsCircle, The curve modifier is working but it seems the array modifier isn't doing its job to "fit curve", Am I doing ...
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1answer
58 views

Doubt about Bezier handle type switching

Have you ever encountered that the handle type of Bezier vertices cannot be changed from time to time? To ensure that the Bezier handle type changes, you need to do one of two things: (1) Use Box ...
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1answer
49 views

What methods are available to do 2D animation over 3D model?

I want to place 2D animation over 3D mesh, to animate eyes for instance. I do not want to use 3D eye globes because this approach limits the available emotions (I cannot display star-shaped eyes or ...
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89 views

Geometry Nodes: Is it possible to merge multiple curve segments?

I am using Geometry Nodes in Blender 3.0 to generate a bunch of curves and I would like to join them together - ideally converting them to a single curve object. The Join Geometry node allows me to ...
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1answer
22 views

How can I make the origin of a smoke emitter follow a Bezier curve?

I am trying to make an icosphere with a quick smoke effect follow a Bezier curve, but I am unable to get the origin to follow the curve. So the smoke just follows the origin along the axis of ...

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