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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How can I make a dragon/fish/monster fin using geometry nodes? Already have have the spikes, just need the fin!

First time on Stack Exchange, so I hope I'm doing this right! I'm in the middle of modeling a dragon and I would like to have a fin running down her back supported by spikes. I modeled this by hand as ...
0 votes
1 answer
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Increase uniform space between curve points before instancing

I'm building a train rail generator, and I'm hitting a wall on this particular issue. Don't know much about geometry nodes yet, so bare with me :) When generating the rails, I'd like to be able to ...
1 vote
1 answer
1k views

Animate Text bpy.ops.transform.translate

I am trying to find the right code to animate text that follows a bezier curve in python blender api. I can add the keyframes, and they appear to be working when I drag through the timeline, but when ...
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2 answers
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How to export a Bezier Curve into Unreal Engine 5?

I'm having trouble trying to export three Bezier curves into Unreal Engine 5. My mesh is a monster that has tubes coming out of his helmet into other areas of his body. The curves move dynamically ...
1 vote
1 answer
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How to Convert Mesh to Curve but Using Face, instead of Edge

In short, I can convert any mesh into a Curve but it uses Edges. Is there any way to make a Curve but in the middle of the face ?? I want to use this method to create a Street Curve from Street Meshes ...
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1 answer
429 views

Clothes follows path then flies away

I modeled money in Blender and I want to make an animation where the money comes out of the ATM. Right now my money follows a path but after this nothing happens. I want that the money follows the ...
2 votes
1 answer
802 views

Bezier curve taper not working

I am trying to make a wine glass, exploiting its axial symmetry. I have a bezier curve spine (a line) which I have bevelled using another bezier curve ...
3 votes
2 answers
1k views

Why does my camera start rotating randomly when following a path?

I have a camera that follows a bezier curve with a Follow Path constraint, with a Track To constraint that follows an object (named "Viewer") moving on another bezier curve with another Follow Path ...
0 votes
1 answer
486 views

Moving a Bezier handle only moves the keyframe

When I grab a bezier handle on a keyframe it only moves the keyframe. This is with the aligned bezier handle type enabled as well. To top it off, when I make a new keyframe ahead of the broken ones, ...
2 votes
1 answer
450 views

how to rotate a texture along a bezier curve

i have a bezier curve. i used geometry nodes to add an object as it's spline. then i created a material which has a wave texture. i was able to use a capture attribute and send that data to the ...
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Define custom Spline Index OR Rebuild Sample Curve Node

Is there a way to set a splines index or otherwise store an attribute on a spline that can be read as 'curve index' in the 'Sample Curve Node'? I'm asking because i have a setup where meshlines are ...
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1 answer
469 views

Blender 2.8 BSurface with bezier curves

I was watching a tutorial about making an airplane. Here's the link. https://www.youtube.com/watch?v=FHiGH-4L5h4 He made some bezier curves that outlined the craft's fuselage and used bsurface add-...
11 votes
2 answers
10k 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 ...
2 votes
1 answer
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Distribute instances along a curve equidistance on cuve projection on a plane

complete beginner here, so bear with me please! I would like to create a palisade fence with the help of the geometry nodes. At first sight it seems simple: Curve --> Resample --> instance on ...
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1 answer
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Why does moving these two curve vertices give such different results?

Does anyone know what key combination or function can help me control hair 1 to be likehair 2 without it spinning around like in ...
2 votes
1 answer
53 views

Find outside/inside curve of two curves

in geometry nodes i want to determine which curves lies on the inside (our outside) of a turn. I found out that it should, in general, be possible to do so by calculating the curvature of of the ...
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3 answers
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Taper a geonodes curve to center of curve & adjustable via group input?

I've created and resampled a curve and want to smoothly taper it to the center. I'm able to do exactly what I need using the spline parameter node and a float curve, but the problem is that I'm unable ...
1 vote
1 answer
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How to bevel a curve using the geometry of another object

I have a Curve. I want to bevel the curve using the geometry of another object. In this example, the other curve is a Rectangle, and it is called ‘Rectangle’. So, I select the first Curve then: Curve ...
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how do i make instanced points in geometry nodes follow the growth of the curves that grow and also grow in scale with them?

I've gotten lost in my nodes and i cant figure this out, it seems that i can add them where i want but they won't follow scale with the curves. can anyone check out my file and guide me? link to ...
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1 answer
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How do i convert hair curves to hair particle system on a mesh so i can export it to ue?

I have made a hair curve object with the new hair system (the one where you press ctrl+a and add empty hair from the curves tab) and i want to convert it to a particle system on a sphere so i can ...
2 votes
2 answers
3k views

Apply Transform Curve to Mesh Geometry nodes

I'm running into several issues with bezier curves in Geometry Nodes. i have a node setup using a curve to distribute shingles along several pre-designated paths, they use the Euler of the curve to ...
1 vote
1 answer
3k views

Sapling tree to a mesh and follow the treeArm Animation like the leaves?

The tree is a curve and has a windSway modifier. The leaves is a mesh and has a windSway modifier. How I convert the tree to a mesh and make it to follow treeArm & animation like the leaves?
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1 answer
457 views

Where are the handles on this NURBS curve?

I'm working on stylized eyelashes for a character sculpt, and I'd like to make a sharp turn at this point. I believe it's a NURBS curve. The path was created with ...
1 vote
1 answer
45 views

slope from an extruded curve object

I'm trying to slope a curve object. I hope to be able to control the angle because the dimensions matter. So if I were doing this with a displacement map, it would be something like this When I try ...
1 vote
1 answer
601 views

Most elegant or simple way to make a train follow a curve?

Rigging a train on a curve has it's problems. The cars have a fixed length and the tighter the radius of the curve, the more the car will cut corners. So a fixed offset will be too long. My current ...
0 votes
1 answer
278 views

match two mesh curves

I've got a situation where two objects meet and they both have curves. I need to make the white portion on the left side match the curve of the gray portion on the left side. The inside the white ...
1 vote
1 answer
359 views

Coon's Patch: Bezier Curve

I have a text file that has four sets of points. In each set, the first and last points are the start and end points of a curve, and the middle two are the coordinates for two handle points. I have to ...
2 votes
2 answers
115 views

Screw modifier of a curve that intersects the rotating axis produces weird faces and problematic normals

I have a curve on the XZ plane that intersects/crosses the Z axis (and its center of geometry) I want to apply a screw modifier with only 4 steps using this curve, and the problem is that after that ...
0 votes
1 answer
662 views

How do I bend a scanned .stl object with several complex features

I'm trying to make a cylinder out of this textured slab. One side is flat while the other side is textured with an intricate pattern.There are several triangles and vertices. I would like to ...
0 votes
2 answers
54 views

Modify individual instances after instancing on points along a path

I've created a pipe bracket which I want to distribute along the pipe(a curve), I'm using geometry nodes to achieve this, and my node tree is shown in the picture below. I want to delete the first and ...
0 votes
1 answer
560 views

Artifacts when using solidify on curves

When i apply the solidify modifier to curves (created by importing a svg file), it creates some weird artifacts. Any idea on how to fix it?
7 votes
2 answers
758 views

I want to realize a bridge zigzag rope with geometry nodes

Suppose I have two upper and lower curved ropes in a geometry node, I would like to achieve a zigzag rope in that section. Ideally, I would like to learn the points of the upper curve and the points ...
5 votes
2 answers
155 views

Procedural extrusion from an object

I am trying to find a way to create procedural extrusions of an object. Assume our base object is a manifold object with a curved surface, such as a sphere (Fig 1). I would like to use a Curve object ...
0 votes
1 answer
33 views

Blend different objects of the Bevel Object of a Bezier Curve from Start to End?

I hope I will be clear in the question as English is not my native language. I am designing Surf Board on Blender, and then CNC them. I changed quite a lot my process to work with Blender lately to be ...
0 votes
1 answer
42 views

Geonodes question: Is there a way to set different widths on one single curve?

I'm trying to get a different radius/width for my curves. This is what I got so far, I'm generating a mesh from my curves where I can control the subdivision and the width. The thing is I can't get ...
2 votes
1 answer
79 views

Array mirrored object around curve

I'm trying to recreate a scene from the opening sequence of No Time To Die: (https://www.youtube.com/watch?v=awZQdw_iNZY&list=RDawZQdw_iNZY&index=2&ab_channel=HDFilmTributes) There are two ...
1 vote
1 answer
788 views

im working with the hair curve and trying to attach the curve to a new mesh

I created a hair curve on a mesh and im trying to add the curve to a new mesh. when trying to play with the curve and make it look better a node show an error: ...
4 votes
1 answer
260 views

Is there any way to render a perfect curve just like pointclouds in blender?

When we use the 'curve to mesh' node in geometry nodes, sometimes we cannot get an ideal results because mesh overlap frequently happens and leads to bad shading on surface, just like this figure: So ...
3 votes
1 answer
3k views

Snap or project bezier curve to mesh surface

I've got a curve which follows the edges of a mesh. This curve is done manually, and I'd like to keep it this way. The mesh has no edge loops that I can use to duplicate them and separate them to be ...
1 vote
1 answer
41 views

Merge two curves with geometry nodes

I have this simple geometry nodes setup which gives me the following result As you can see, the junction between the two curves is not merged properly, so when it is converted to mesh it does not ...
2 votes
1 answer
268 views

Nurbs Curve length?

I know with the Bezier curve you are able to get the length of total length. Is it possible to get the length of a Nurbs curve?
0 votes
2 answers
2k views

How can I subdivide and curve/smooth a low poly line without moving the original points

I am trying to create the hull of my frigate by creating latitudinal curves, converting them to meshes, and then joining the mesh lines to create full mesh. As you can see in the images, I am using ...
1 vote
1 answer
258 views

Object flies away when adding Curve modifier

When I'm adding the curve modifier and adding a curve object - my object flies away
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0 answers
36 views

How to delete specific part of a mesh that follows a Bezier curve, through geometry nodes?

I am working on meshes which is created based on idea of tessellations, I want mesh to follow a curve (say, Bezier) using geometry nodes, which I am able to do to some extent, but the issue is, once ...
0 votes
2 answers
1k 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 ...
2 votes
0 answers
48 views

Criteria for Spline direction

I often work with instances or deform geometry along splines, and I consistently find myself struggling to control the output of my operations. Blender sometimes changes the spline direction randomly ...
2 votes
1 answer
52 views

Blender Geo nodes offset curve

So I am in the process of writing a geo node modifier where I can create curves that are offset from the original curve by a certain amount. I would like to be able to offset the curves by an amount ...
1 vote
0 answers
13 views

Apply Transformation from Mapping Node to UVs?

I'm using the mapping node in the shader editor to create different UVs for curves without needing to convert them to mesh/unwrap them first (I'm doing hair cards, all the cards are on one texture). ...
0 votes
2 answers
37 views

Using SVG image as curve profile in Geometry Nodes

I have a question regarding curve profiles in Geometry Nodes. Does anyone know if it is possible to use an SVG image profile directly as a curve profile in Geometry Nodes? (The SVG is already imported ...
5 votes
2 answers
454 views

How to model a spherical snowflake?

Hello everyone, I've been trying to model this shape in blender, I tried bending planes, projecting curves on the surfaces but still couldn't get the perfect result. Is it possible to project this ...

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