Questions tagged [bezier]

Questions about Bézier curves, a type of path with control points used to create smooth curves. Ask anything about how to create shapes and objects using bézier curves, manipulate the control points or its properties.

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14
votes
1answer
6k views

How can I simplify or resample a Bezier curve?

When I use the Grease Pencil to draw out quick curves in the 3D Viewport, and then convert the pencil to a Bezier curve, the result is always consisting of very dense geometry and handles which are ...
10
votes
3answers
2k views

What is the mathematical basis for F-Curves?

The Blender user's manual says: Although F-curves are very similar to Bézier Curves, there are some important differences. One of these differences is the fact that an F-curve doesn't allow a ...
9
votes
3answers
2k views

Generating jigsaw pieces from svg curves

I have generated the laser cut of a jigsaw in Inkscape. After importing the svg in Blender I am now trying to extract each jigsaw piece into it's own object. The problem is that my SVG is made of ...
9
votes
1answer
1k views

How do I add a non-deformed end cap to a tube?

I want to create some parts that I can reuse for models. I was trying to make a steam punkish exhaust pipe. I want to be able to make the pipe of any length, and as curvy as I like but I want to keep ...
8
votes
1answer
1k views

How to model an accurate parabolic mirror with a known focal point?

I am new to Blender and really enjoying it now, but... I want to make an accurate parabolic mirror with a known focal point. For example, I would want to have it focussed so that a parallel beam could ...
7
votes
1answer
2k views

Animate object along path and deform accordingly

I'm trying to animate an object across a bezier curve using path constraint but, even though the orientation of the object changes correctly, its shape doesn't change. I'd like it to "deform" ...
6
votes
1answer
694 views

Using a bézier curve to raise/lower height of vertices?

I would like to be able to modify the height of vertices on a plane using a bézier curve. I sculpted a example of what I would like to do: For my case, I would need the deformation to be somewhat ...
5
votes
2answers
396 views

Stairs along bezier path [duplicate]

I'm trying to figure out how to make a stair case along a complicated bezier curve. The stairs are just made of wooden planks, so it's simple model, I'm just having trouble keeping them all level and ...
5
votes
2answers
8k views

What are the practical differences between beziers, nurbs and paths?

I know that Beziers, Nurbs curves and Paths have different controls: Bezier handles have control over tangents, and the curve always touches the control point Nurbs curves don't touch the control ...
5
votes
1answer
209 views

Create 3 curves/pipes that intersect holes in multiple objects and are equal distance from each other

I want to create 3 metallic rods (solid pipes) which start from the solid block on left, pass through the holes on the other two stands and a few more off-camera, and end in a similar solid block. The ...
4
votes
1answer
2k views

How to make beveled 90 degree corners on a curve better?

I know the title is a mouthful, but this is the problem: I made a curve with 90 degree corners, like so: I then beveled it, and this was the result: As you can imagine, this isn't very pretty. I'm ...
4
votes
1answer
1k views

Object wobbling and shaking while camera following a path

I have a cube object and I'm trying to move the camera in a spiral and then render the video. When seen from the camera view, the cube object seems to wobble a lot along the z axis. I have seen this ...
4
votes
1answer
680 views

How to delete bezier points from curve splines with low-level code

I'm trying to edit curves via python, but deleting bezier points is causing me trouble. I'm able to do it using high-level operators (see sample code below), but I would prefer edit the data more ...
4
votes
0answers
72 views

Hook and curve transformation

I do not know English very well and write via Google translator, but I need your help. I need that bezier would retain its shape of a semicircle when I bind the last and the first vertex to different ...
4
votes
2answers
1k views

What's the best way to take a bezier curve and have it render as a freestyle line?

I'm attempting to draw a road onto a mesh terrain and am looking for a better solution than the one I currently have. At the moment I create a bezier curve in the shape of the road then apply a Shrink ...
3
votes
1answer
2k views

How to let a cable hang so that it look realistic

i just have made a lamp on a cable hanging from a beam, but i doesnt look realistic. How can I animate the cable so that it hangs from the bean like a cable would?
3
votes
2answers
2k views

Can I set the start point of a bezier curve?

I have a closed bezier loop that insists on a particular point being the start/end. Is there a way to change which point is considered the start, as in which point represents 0.0 evaluation time? I've ...
3
votes
3answers
8k 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 ...
3
votes
1answer
300 views

Animating appearing/extending strip with gaps

As i am new to blender i decided to learn by recreating some animations which have some interesting problems, and gain more knowledge about how tv intros are being done, collecting some parody intros ...
3
votes
1answer
185 views

How to stretch or compress a spiral cylinder

I have a cylinder-like spiral object as a .STL file (figure). We want to animate compressing and stretching this cylinder (figure). How can this be done? Edited:
3
votes
1answer
105 views

Follow bezier with scale variation

Could you help me please? I need to a pattern where spheres are following a bezier curve without deformation, touching each other but with different scales in some parts of bezier line. The spheres ...
3
votes
1answer
957 views

How do I fill my bezier curve shape?

I'm trying to create legs for my park bench in Blender. The shape is a bit complex to model, so I crafted it using bezier-curves. However after selecting "Both" as my fill-option the shape fills up ...
3
votes
1answer
661 views

Make a bezier curve into a subdivided mesh?

I have created a shape using a bezier curve. I want to give it depth and then apply an image as a displacement modifier. I have added a face to the shape and extruded the shape into 3 dimensions. ...
3
votes
1answer
646 views

Can we shorten spines on bezier curves? [duplicate]

Is there a way to reduce the size of the spines poking out of bezier curves? Or is there a way to generate smaller bezier curves with smaller spines?
3
votes
1answer
764 views

How to make a generated texture follow a Bezier curve?

I'm animating a representation of fluid flow by using a generated Wave texture, animating the mapping to make the rings travel. This works well for a cylindrical object; but for a bent tube, the rings ...
3
votes
1answer
302 views

Boolean with curves

I am trying to cut out a section from a "spherical shell of yarn", without much success. Using a python script, I created a series of coordinates on a spherical surface: ...
3
votes
0answers
28 views

Mirror modifier with Bezier Curve

I am trying to mirror a bezier using the mirror modifier. I would like to then make the original and mirrored bezier join/merge as one continuous curve with one direction. I then want to continue ...
3
votes
0answers
25 views

Tank tracks seem to be not following the curve

The curve and array are applied properly but it seems it doesn't want to follow the curve but go straight. When I move the model it all rotates at the same time. I have tried tutorials but nothing ...
2
votes
2answers
1k views

How can I make a perfect sweep with bevel object in Bezier curve(3d) (Pipe)

I can't create a Pipe 3D without annoying shrinkage in the corner of my bezier curve using bevel object. Those are my step. I create a bezier curve (on 3 axes) transforming two corner in Vector ...
2
votes
2answers
72 views

How to add bezier curves (start and end) to a 'follow path' animation?

I added an object to a curve as a follow path animation but the animation seems too linear, I can only change the parameters of the curve as I see, how can I give it a proper start and end? (like a ...
2
votes
1answer
98 views

Bending curve/object around another object

I'm trying to make some 3d fx and I imported my basic svg file. Now I want to wrap it around the top surface of the object but I don't know how. Can somebody help me accomplish this? Here's how I ...
2
votes
1answer
197 views

Circuit board (technical elements) with particles

So I was watching this video the other day: https://youtu.be/-pH48mSEH0M?t=243 and at one stage they show off how they made some of the technical elements of their VFX's. 3DS was being used for this, ...
2
votes
1answer
443 views

Creating an bevel inset on an imported SVG

I am trying to create an insetted bevel on an imported SVG in Blender. I so far have the SVG properly imported, and am applying a 0.02 bevel depth to its geometry, and a 32 resolution to that bevel so ...
2
votes
1answer
254 views

Planar curve with width

I have a planar bezier curve, this curve is in general not closed but it can intersect itself. What I want is to give this curve a finite width in the plane of the curve. I have found many ideas ...
2
votes
1answer
44 views

Need tips on hard surface curves

im working on pot of greed from Yu Gi Oh. I have modeled the base mesh and was wondering if anyone has any tips on doing these curved lines highlighted in the image below. Thanks in advance!
2
votes
1answer
78 views

looping through splines of a bezier circle, can only find 1 spline not 4

I'm trying to port differential line growth to blender animation nodes following this example https://vimeo.com/169438763 . I was suggested to work with splines in blender as it would be a lot simpler ...
2
votes
3answers
90 views

Merging two simple pipes? Boolean looks awful, carefully connecting the meshes does too

This should be so simple. I’m trying to create the vestibular organ. I am trying to connect two 8-faced low-poly pipes. I have tried carefully deleting and connecting the mesh at the base which ...
2
votes
1answer
323 views

Extruding a form along a curve + rotating it [duplicate]

Is there a way to control the rotation of the extruded mesh along the curve? To show what I want to do: And this is what I got so far Don't worry about the overall proportions and the mat (still ...
2
votes
1answer
800 views

Bezier Curve - Split one large end into multiple wires

Would that even be possible? I have one large, Bezier curve wire, made using a Bezier Circle. I need to extrude that end into several, smaller wires. How should I proceed? Is that even possible? Or ...
2
votes
1answer
76 views

Can you use curves to make a pretzel?

I want to make a pretzel but I can't seem to get a good idea of how to make one. I am wondering if you can use a curve and then put it on full bevel. Basically, is there a good way to shape it? Help ...
2
votes
3answers
528 views

How to model a mesh of curved axe?

I am trying to model this axe and I don't know how to do it properly. I've highlighted the part I'm trying to make here: I tried two different main approaches so far: Start off from a plane and ...
2
votes
1answer
96 views

mesh is twisting on bezier circle

after managing to get the mesh to follow the bezier circle theres a problem where it twists and screws up in one corner but the other corner seems fine. if it matters the origin point is at the top of ...
2
votes
1answer
52 views

Camera rotates on Z angle (rolls) during following spline

I have made an intricate path for my camera to follow based on the instructions in here, and it almost works fine, except that the camera rolls for apparently no reason. Is there any way to counter ...
2
votes
1answer
430 views

Is it possible to record the bevel factor as a keyframe in the action editor?

Just starting to get my head around animations in blender. Rather than jumping straight into a rigged model, I smooshed together two things I had seen done in videos: Using the action editor to make ...
2
votes
1answer
242 views

Make Bezier Curve look like Torus Array

I am just sitting here at my very first own project and just thinking if it is possible to make a bezier curve look like a torus array like seen in example picture. Hope anyone can tell me how to do ...
2
votes
1answer
248 views

Bezier masks for use with groups of shapes?

I'm using Blender to do some 2D, shape-based animation. Everything you see here is a Bézier shape. To animate the mouth and eyes independently, I add holes to the head shape and then stack the eye ...
2
votes
2answers
5k views

line segments with edges into a curve

I want to give these line segments a continuous cylinder shape, like a Spaghetti noodle. My aim is to make this path visible in render mode. At the moment you are not able to see it in render mode ...
2
votes
1answer
4k views

Bezier Curve: Bevel Object is creating a flat surface

I'm using a bezier curve and want to create a specific bevel edge shape to it in 3D. The shape I want the bezier circle to be along its length is attached below. I created it by converting the edge ...
2
votes
1answer
19 views

Bezier curve-based mesh's front surface is not appearing

I made a bouquet by blender 2.70 for The Sims 4, but the front surface is not appearing (even in the Blender). I made it with a Bezier Curve. How can I make it show the front surface? I'm trying to ...
2
votes
1answer
45 views

I can't get an arrayed object to follow bezier curve

I've done this hundreds of times in 2.7x but in 2.81 I just can't get it to work no matter what I've tried. Sample file attached. I have a simple object I want to array to be, say, 5 kilometers long. ...

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