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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13 views

How to separate Bezier Curve from influencing other hair particle systems in the scene?

I used bezier curve to make hair. I want to make the grass in the scene also using particles and grass models but the grass always orientates itself by using the curve even if the mash is different. ...
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11 views

Bevel object flipping unexpectedly

Above is the issue I am having. I would like to edit the path as below: In the second gif, I can use the move tool to taper and bend the hair. This is what I would like to do. In the first gif, ...
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Blend one bevel to another in a curve

Basically I have two curve shapes with the same ammount of points. I want to use them as bevels of a bezier curve, then blend from one bevel to another inside of the curve. Is there any way to do this,...
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97 views

placing origin at end of Bezier Curve

i have created a bezier curve, to make a corrugated sheet, and i am then trying to slide a thin cube mesh. i have placed the origin at one end of the the cube mesh and am trying to do the same with ...
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17 views

Help with curve modifier

I need help with this, I don't know what I am doing wrong. I made a rope segment, set up an array and used a curve modifier to wrap the rope around the pole, but it's not following the bezier ...
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32 views

Solidify Modifier going in all directions

I was trying to create a different version of a stylized archway. I used a couple of bezier curves to get the basic shape then borrowed some of the shapes from the original archway. I got everything ...
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1answer
15 views

follow path constraint lost

I have created an object following a curve. That works fine. To messure the length of the curve using the add-on measurelt I converted the curve to a mesh. Then I converted the mesh back into a curve. ...
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25 views

How Do I Subdivide A Bezier Curve using Python? [duplicate]

I'm using Python to create a Bezier curve programmatically. bpy.ops.curve.primitive_bezier_curve_add() bpy.ops.curve.subdivide(number_cuts=4) The code above works ...
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2answers
69 views

Is there a tool in blender that is similar to the 'blend' tool in Illustrator?

I'm a graphic designer who's been using blender for fun and making mockups for my projects, and I'm looking to make a textbook model. Now I know there are other convincing ways to model a book, but ...
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126 views

Converting / getting parametric equation to work using python

Converting / getting parametric equation to work in Python / Blender / Animation Nodes I can create / plot the parametric equation in Octave $$x=u\sin(u)\cos(v)$$ $$y=u\cos(u)\cos(v)$$ $$z=-u\sin(v)-\...
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48 views

Merging verts by distance breaks smooth shading (Blender 2.8)

I created a wall piece from a cube, applied smooth shading to it and then used the array modifier, but after merging the verts by distance, it mixes up the normals in a random fashion, while for the ...
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68 views

Trying to animate an extrude in 3D using curves generated by an equation over time

Trying to animate an extrusion in 3D using curves generated by an equation over time. I can create a 3D spiral pattern using python and animation nodes but how can I extrude the curves so they vary ...
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24 views

guide hair with a curve

how can I apply the deformation the curve(with curve guide) gives to the hair, so I can delete it and enable hair dynamics pleasee hlep have a simple hair with a curve guide, but I can't use the hair ...
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21 views

Setting the points of a nurbs curve to (XYZ) in worldspace [duplicate]

I`m trying to snap the ends of a curve, to two points in space. However, I can't get past the fact that It requires worldspace input of a matrix instead of a vector. I've tried to convert worldspace ...
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141 views

Curves projected on object

i am trying to do a xenomorph egg like in the pic below but i am stuck at creating the 'petals' edges to look realistic, any idea if a curve projected on the egg main is the way to go ?All i currently ...
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21 views

One curve driven by anther?

I'm trying to have multiple curves that are all driven by a single curve in terms of control vertices. Is there a way to have a curves shape dictated by another curve?
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1answer
20 views

not able to add a curve, the popup menu only lets me add meshes

I am brand new to blender and trying to make something and I want to add a circle curve so I pressed shift+a to add it but the popup menu only lets me add meshes. If anyone could help me I would be so ...
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88 views

How do I make a curve that goes through a series of points?

This seems simple (to Adobe Illustrator users maybe?) but how do I get a 2D curve to go through say 12 points. Such that each bezier handle is determined by the previous and next point in the row? &...
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129 views

How do I use the Curve Profile > Helix (3D)

I'm trying to use a Curve which is under the submenu Curve Profiles > Helix (3D). Is anyone familiar with how to use this? I can't find much about it. I am trying to create a spiralling helix curve ...
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67 views

Attaching OSM road data to google maps 3D mesh from RenderDoc

I am trying to attach Open Street Map(OSM) road data to a mesh of the terrain generated using Google Maps + RenderDoc, in order to create 1 single mesh eventually. I have generated the OSM road data ...
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40 views

Trying to draw a specific curve with Python

I am an amateur and beginner using Blender 2.82a on my Windows PC (nothing fancy). I am trying to make a 3D animation of some pipes, but I am stuck at even the very beginning. I am extremely bad at ...
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8 views

Is there a way to retain layer information from c4d, or get meshes from dxf import?

I have a scene provided by the client as .obj, .dfx and dwg. A coworker using c4d can open the .dwg directly, and has the scene organized in layers. I can either import the obj which is only one ...
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30 views

Joint with defect

I need continue direct construction from sample around half circle. Sample width = 1 Circle radius = 5.5 Half circle lenght = 17,27825(3.1415*5.5) I scale axis on 1,016367647058824(17,27825/17) and ...
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28 views

How to curve an array correctly

I am having huge issues curbing an object. I have a tube that has been made out of an array of objects to create a ribbed effect. But when I go to curve it using a bezier curve the it distorts some ...
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1answer
46 views

Reverse Curve Guide Direction

When I create a curve and add 'Curve Guide' Force field, at one end there is a dotted circle and the other end a solid circle. As far as I have understood, the solid circle is for particle start and ...
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35 views

How to create a hook modifier on every point of a curve using python

I made a script to add a hook modifier on every point of a curve using a for loop but I get an error in 2nd iteration. Below is the code: ...
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1answer
136 views

Update a custom property after leaving edit-mode?

I'm looking for a way to automatically run the update_length() function after editing the actual curve, this would make my curve_length property always be up to date. ...
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23 views

Why does my array along a curve get shorter when I scale it down?

I have a spiral stairs array with the curve path. I parent the whole building (stairs and curve) to an empty and want to scale it all down. As I scale down the stairs get smaller. Without applying ...
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670 views

How do you create parallel spirals like a rollar coaster track?

I've added a curve spiral with Curve -> Curve Spirals -> Spheric (This might require an add on to be enabled like "more curves"). I'd like to have a second spiral that is parallel to ...
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1answer
39 views

Smooth shading not working for curve elements

I used an array aswell as curve modifier in blender 2.8 to create a room out of an object, applied all the modifiers (no more active modifiers now), removed all doubles and activated the smooth ...
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24 views

Why the mesh bend as it follow curve

Few days before i had this same issue and got the answer I tried the same for this mesh but did not work. I on the z-up option still the mesh bend as it follow the curve. The radius scale rotation ...
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65 views

Why will my object not follow the curve modifier?

Sorry, I am a bit of a newbie, so please bear with me, here... I am not going to be good at explaining this. I'll try my best to give more detail if needed. I am trying to apply the curve modifier to ...
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1answer
88 views

Modelling a full Windsor knot on a necktie

I'm trying to model the steps involved in tying a full Windsor knot. The very first step is getting the fatter/thicker end through a loop. In my model, towards achieving this first step, I reached ...
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1answer
29 views

Image as Plane and Stroke Object - transparency issue

Need help to fix the stroke overlapping on the hand image, which is added as Images as Plane.
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1answer
41 views

Mesh bend as it follow curve along path [duplicate]

With mesh (stairs) following the curve path. Few stairs are in align rest as it goes up the stairs bending. Rotation scale applied. Tilt is also 0. Whats going wrong. Any suggestion or help Thanks.
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23 views

Why does an object travelling on a path start rotating the wrong way half way through?

I am using blender recently, I created a scene where there is a toy car that goes around a path (a simple oval path). The problem is that the halfway wheels turn in the opposite direction. When the ...
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1answer
117 views

Animating wire/cable/rope wrapping around a cylinder

I have searched everywhere on the web for a way to do this, but I can’t find anything. Someone have any ideas for doing this without using physical simulations? The operation should be this: the red ...
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1answer
40 views

How do you use the Curves modifier to make a smile or different shape?

I was following along with Blender Guru's video on how to make a Teddy Bear, and I got to the point where he is talking about how he made the mouth. He uses a Bezier Curve and a Screws Modifier. ...
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11 views

Extrude leads to intersections (prevent or clean up)

I'm currently trying to create a model for 3D-printing. The model itself is nonconvex and built from a curve I traced from a picture. I converted the curve into a mesh, cleaned it up (using limited ...
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1answer
42 views

slope along curve

I have a long path object that I designed in top down view but I want to have a downward slope over the whole thing. Is there a quick way I could do this? Like position my first and last points where ...
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24 views

Removing connection line between origin of curve and last point of curve

I'm new to Blender 2.8. I want to display a curve based on x, y, z data I got stored in a file. To load the curve I am using the following script, which I found in this forum. With TS_0084.dat being ...
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2answers
80 views

How to create a progressive coil spring in Blender 2.82?

I've been trying to create a coil spring with a progressive elongation of the spiral in the Z direction and so far have been coming up short. Seems like it's possible to scale the radius easily enough,...
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7 views

Is it possible to “make” a curve from a rigid body object that has been simulated?

I'm wondering, if I made a bowling ball bounce on a surface, can I "absorb" the information(location) from the ball to create a curve?
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20 views

How to use script to translate, independently, all control points in a Bezier curve?

in advance. I'm writing a script to change Z, for every control point in a bezier, so the final curve will have the same initial shape, but will follow a 'descending' path, from start to end. Steps ...
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31 views

Array + Curve Modifier not filling out fully

My curve is a bit odd - it is a gridlike structure (based on NYC streets). I want to place cars on the roads using the array and curve modifiers, but for some reason, when I do this, it only fills out ...
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1answer
30 views

Merging an array of paths to be used as a curve deformer

I am trying to make an array of paths to create something like a repeating wave pattern. The final pattern will be very long and would be a pain to do manually. What I want to be able to do, is merge ...
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168 views

How to curve vertices in a vertex group to a bezier curve?

I'm new to blender so please bear with me. I have a group of vertices I want to fit to a curve. I tried using a simple deform and couldn't quite the results to look like what I wanted. Is there a way ...
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1answer
42 views

Creating a grid of tubes following a mathematical surface

I am creating a 3D mathematical surface using the "Add Mesh: Extra Objects" plugin, resulting in the mesh surface below: Ultimately, I would like to convert this surface into a grid of ...
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1answer
32 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 ...
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17 views

Non-weighted tangents

This has been asked a few years back, and it seems it has not been implemented yet. It is one of the most useful features in Maya in particular because you are not constantly manipulating handle sizes ...

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