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.
2,273
questions
5
votes
3
answers
89
views
Animate Locomotive by follow Path
I want my locomotive to follow rails over a hill.
The loc should always be on the rails.
I've tried a few things (such as https://www.youtube.com/watch?v=OruVKMGGPX8), but I always come back to the ...
1
vote
1
answer
28
views
Problem with joining Bezier curves in blender 3.5.1
This is my first post here so I apologize in advance for any mistakes I make.
I am trying to join two bezier curves using the add-on "Curve Tools". The steps I follow are simple
Add a ...
- 11
0
votes
0
answers
10
views
Using inflate on a filter mask using sculptures, how can I easily select all of the modified faces so I can create a material group
So basically, I'm trying to engrave a rune onto a sculpture plane, so far I've been able to use mask and inflate to achieve my desired geo, however, I'm looking for an easy to way to select all of the ...
- 55
2
votes
1
answer
25
views
Reverse time/direction geometry nodes
I have instances traveling along a curve based on the factor of 0 to 1 in a circle. I would like to click the switch and have the instance start traveling backwards from it's current position on the ...
- 95
0
votes
0
answers
22
views
How to subdivide new Hair System curves for UE5 export?
When I'm exporting it to Unreal it appears very low res, cause it doesn't respect Blender's viewport SubD settings, obviously. Is there a way or a node to increase points?
0
votes
0
answers
6
views
How to import bezier curve with start & end mapping property in Unity engine or just bezier animation which is animated with start & end mapping?
How to import bezier curve with start & end mapping property in Unity engine or just bezier animation which is animated with start & end mapping?
I tried all available option, but didn't get ...
1
vote
1
answer
26
views
Stretch and skew planes between posts or points on a bezier curve with geometry nodes
I am trying to stretch and skew a series of planes between cube posts on a bezier curve The bezier curve is set to vector to give only straight lines, but in all possible directions.
The plane will ...
- 11
0
votes
0
answers
14
views
Chopping branches apart of a Sapling Tree Generator tree?
I have used the Sapling Tree Generator to make some trees I like. I need these to next be able to animate (blow in wind) in my game dev system. To do so, I need to chop them apart at at least a few ...
- 375
2
votes
1
answer
48
views
Offsetting a 3D bezier curve on the XY plane in Geometry Nodes
I have a catenary bezier curve that I generated in Geometry Nodes from mesh vertices.
I would like to duplicate and offset the curve on the XY plane (and make it work for both cyclic and non cyclic ...
- 651
0
votes
0
answers
40
views
Array following a curve - Simple Deform (Bend) modifier ignored?
I have the feeling I am doing something really wrong, but I do not get it:
I am using a curve to define the shape of a circular wall. Then I paint small cubes along that curve with the array and curve ...
- 1
0
votes
1
answer
40
views
Geometry Nodes - Mapping a curve tangent to nearest vertices
I'm having a bit of a headache with this one, I have a bezier on a plane and I'm trying to map the tangent of each point on the nearest geometry of the plane with geo nodes.
I have a Sample Curve node ...
- 3
0
votes
0
answers
15
views
Blender model not importing to Roblox Studio
I've just gotten into Blender because I want to make assets for a game of my own in Roblox however I've ran into a problem where my model doesn't appear when I export it as FBX into Roblox Studio.
An ...
0
votes
0
answers
22
views
Geomtry Nodes Brick Wall on Curve Gap Keeps Moving
I want to build a brick wall on a curve but with my current setup whenever I pull on the curve the gap in between the bricks grows and shrinks depending on how many bricks it adds. I can't have a gap ...
1
vote
2
answers
39
views
Cutting off excess plane
I have this shape that is made from 4 bezier curves and then exstruded. How can I cut of the excess plane so im left with just the shape?
- 11
2
votes
1
answer
37
views
Points don't merge when using Mesh to Curve node
In blender, each spline point can only have 2 neighbors so when you extrude a point that already has 2 neighbors blender does weird things. And if the curve was generated by changing a mesh into a ...
- 43
0
votes
0
answers
19
views
Best way to bevel extruded curves?
I'm trying to bring our company logo into Blender to create a 3D model of a plastic part, for a concept visualization. I can import the SVG just fine, and extrude it in the Curve/Geometry properties. ...
- 807
0
votes
1
answer
15
views
Render time increasing exponentially each frame
I’m trying to render out a complicated scene, with motion blur, depth of field, volumetrics and lot of vertices.
When rendering image sequence, the render time drastically increases from frame to ...
- 13
1
vote
0
answers
36
views
Convert vertices stored as mesh into curve
I am relatively new to Blender and I am working on sequence of 3D point that are supposed to be a trajectory for my camera.
My points are stored as vertices of a Mesh object, with no connection ...
- 11
2
votes
0
answers
76
views
How would I model Tsuka wrapping?
I'm trying to model a Tsuka wrapping and what I tried was to use a shrinkwrap so that my bezier curves get around a mesh I made.
Problem is that when I'm using a shrinkwrap it flattens my custom ...
- 21
0
votes
0
answers
29
views
Geometry nodes: Is there a way to specify edge angles in certain increments?
I have some mazes made of simple polygon curves / lines.
My problem is that sometimes these lines are not aligned properly and slightly off-angle. (For example 13.724 degrees)
Is there a way to have ...
- 107
1
vote
0
answers
17
views
How to remove the interpolation between 2 frames for a specific object using the Python API?
I want to render the results of a molecular dynamics simulation in Blender using the Python API.
I have managed to load the data and animate the molecules. Sometimes a molecule moves from one side of ...
- 11
0
votes
0
answers
19
views
Why is my Curve rectangle not visible as an object in Curve settings?
After creating a Bezier Curve I also created a Curve Rectangle that I want to use as the object in the Curve options on the BezierCurve.
However, when I want to choose my rectangle within these ...
- 149
5
votes
3
answers
577
views
Making a pumping tube
so I've got a Bezier curve in the shape of a tube:
This is how I created the tube mesh.
I don't know how best to explain it, but is there a way to make it seem as if the tube is pumping something? ...
- 339
1
vote
2
answers
52
views
How to make a spiral clock 3D model
I want to make a spiral clock 3D model which I can animate but I can't get my head around to how to make it -
I tried to make the clock by adding a screw modifier to an edge of a plane. But I can't ...
- 11
0
votes
0
answers
14
views
Can you render Bézier curves without giving their geometry thickness?
Is there a simple way to render Bézier curves in either Eevee or Cycles, while their bevel property is zero (so that their geometry has no thickness)?
I suspect there might be because shaders can also ...
- 58
2
votes
1
answer
102
views
How to apply a texture to a bezier curve?
I'm modeling an open book, so for the curved page I have taken a bezier curve and once I found the proper proportions, I have converted it to a mesh. The problem is that, when applying a texture, it ...
- 389
4
votes
2
answers
152
views
Geometry Nodes: Get curve point count per spline
Is there a way to store an attribute which contains the number of points for each spline of a curve?
In the following exemple I have a curve object with multiple spline in it.
They have respectively 2,...
- 43
4
votes
0
answers
41
views
How to calculate bezier curve handles positions to reproduce a known curve?
The question in the title is too general, but this is the idea.
For instance, if we look at a bezier circle, we can notice that the handle position is 0.55213 aside the control point. What is the ...
- 51.3k
0
votes
0
answers
20
views
Curves creating artifacts?
My mesh is issue free when laid flat but when a curve modifier is applied, it gains these artifacts. They do not show up as an edge or at all in edit mode, only in object mode. It's an issue because I ...
- 1
0
votes
0
answers
18
views
Curve profile object
will try to keep short.
I have a profile I'm extending along a curve, which is a loop. At the end, they don't meet though — is this something I have to bodge, or is this something you have to fix with ...
- 47
0
votes
0
answers
11
views
Ribbon-style mesh particle question
Heyo! I've been playing around with Blender for the creation of mesh particles, but I've run into an issue when using curves for "ribbon"-style meshes. If I want to control things like the ...
- 11
0
votes
0
answers
45
views
Geometry Nodes: Is there a way to add a vertex on all intersecting edges?
Similar to what is done with auto-merge function as seen here:
This is the start with the curved corners I have
Here I delete the edges that are at a certain angle + very short
Here I extrude the ...
- 107
0
votes
0
answers
34
views
Geometry Nodes: Is it possible to turn rounded corners into sharp corners?
Basically I have some SVG drawings that don't have perfect sharp corners. Sometimes it's at a slight angle or rounded. Is there a way to get them to be a perfect 90° angle or something similar so that ...
- 107
1
vote
0
answers
31
views
Is there a way to have an adaptive uv on a curve?
I am working on a rope sculpture where I will hand draw several curves. I have found an answer (Texture coordinate on geometry nodes rope from Default Cube's tutorial (texture coordinates over ...
2
votes
1
answer
28
views
I need help with curve modelling
I'm modelling a decoration on a musical instrument (the reference photo in the background) and am out of ideas on how to fix a problem I ran into. I tried modelling the shape with curve - path option ...
- 21
0
votes
0
answers
9
views
Glitches on curves when importing svg
I have a curve with the following modifiers added:
Mirror
Solidify
Subdivision
And I keep getting these glitches.
If I remove the subdivision modifier then the glitches disappear.
I sometimes get ...
1
vote
1
answer
24
views
Animate object along animated curve synchronization issue
I'm trying to animate something like a 3D pen that leaves a trail of filament. The problem is that the trail and the pen-tip are not synchronized.
I approach this by first animating a Bezier curve. In ...
- 11
1
vote
0
answers
56
views
How to get the outline/contour/silhouette of a selected object?
I want to use Python to get the outline/contour/silhouette of a selected object in the Orthogonal View.
Just like the orange shape/outline that blender shows when I select the object in the view3D.
As ...
- 33
3
votes
1
answer
99
views
Array deformed along multiple disconnected splines
Hello :) I found this great answer by @Kuboå regarding deforming along multiple curves at the same time. [https://blender.stackexchange.com/a/282932/146028][1]
And I was wondering if there was a way ...
0
votes
0
answers
23
views
Texture coordinates on 3 profile curves within 1 geometry nodes setup (Default cube rope tutorial) [duplicate]
I must preface this by saying that I have a very limited knowledge of Geo nodes, so this may come off as quite stupid.
I followed Default cubes GN rope tutorial( https://www.youtube.com/watch?v=...
0
votes
0
answers
19
views
Animation does not work correctly
I have several problems with my animation after render.
I made an animation of tears using bezier curves. According to my plan, in the last frames mashes should go through another mesh puddle. But ...
5
votes
1
answer
48
views
Curve animation with Geometry Node
I made a mobile hand tied to the body by a chain.
When you move your hand, this chain can be made longer or shorter.
Moving the hand...
The GN I use.
Now I need to make it look like the hand chain ...
- 505
0
votes
0
answers
41
views
Bezier curves hair makes blender slow
I have made this hair with bezier curves following this tutorial: https://youtu.be/QocAk6TNKp4 . Now I'm going to rig the character, but I'm afraid it's going to be slow, since in editing mode the ...
2
votes
1
answer
78
views
Access curve radius value inside Geometry Nodes?
I've searched a lot for this. When working with curves I use Alt+S a lot to change the radius/scale of certain areas.
But when working with objects along a curve in Geometry Nodes I can't seem to ...
- 140
0
votes
2
answers
35
views
Proximity based merging and smart array
I'm an architect and archviz-guy (archicad+twinmotion+photoshop). recently i got into blender to extend on my knowledge and realize more complex structures. unfortunately even after searching the net ...
1
vote
1
answer
36
views
What logic does the Curve modifier use when deforming using a Bézier Circle?
I was expecting the Curve Modifier to deform a mesh based on the curve's shape. So when I use a curve with a circular shape, I would expect the mesh (a hexagon mesh ...
- 6,845
2
votes
1
answer
124
views
Curve modifier causing twisting instead of straight deformation
I have a simple rectangular prism that I need to deform nicely along a few curves. I've successfully done so along two, which have no issues. (One is mirrored.) This third one looks like a twizzler ...
- 23
0
votes
0
answers
59
views
calculate curvature of a 2d curve
Consider any 2d Bezier curve with some resolution. I want to get the curvature values over the whole curve. (either by Python script or geometric nodes or any simpler ways).
One way I thought of is: I ...
- 23
0
votes
0
answers
17
views
Constructing BVHTree from curve object
On attempt to construct BVHTree from curve object Blender 3.4 just exits without even leaving a crash log. I can reproduce it if one adds a Bezier or Nurbs curve to an empty scene, sets Extrude to non-...
1
vote
1
answer
35
views
How do I make my array objects follow the curve?
For reference, I want to make the following animation:
with the objects rotating around the center like a ferris wheel.
I am currently stuck here:
I want to make the objects stick to each segment of ...
- 113