Questions tagged [splines]
The splines tag has no usage guidance.
109
questions
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
1
vote
1
answer
57
views
Keep resampling count on spline after being divided, geometry nodes Blender
I have a sequence of splines which its being resampled with a fix number each one, this number represents how many instances each spline will be instancing and its is saved in an field coming from ...
0
votes
1
answer
78
views
How to get Splines/Curves generated with Geometry Nodes on Mesh object using bpy?
I add Geometry Nodes to the default Cube but instead of using its geometry I use a Curve Line:
How to get this Curve Line data with bpy?
I've tried the following ...
- 963
0
votes
1
answer
20
views
Spline "motion tracking" indicators
Learning blender (3.4 installed), I see people creating a spline then turning on motion tracking to view the path with arrows. They do this with the Viewport Overlays drop-down, enabling the Motion ...
- 101
0
votes
0
answers
16
views
more density curve on start [duplicate]
How to make a denser curve at the start via geometry nodes?
- 181
3
votes
0
answers
53
views
How does 'Trim Curve' node evaluate the order of splines?
I'm animating trimming of Curves with Geo nodes. My setup looks something like this.
I'm delaying the start of the animation for multiple curves.
I don't know how to control the order in which the ...
- 31
0
votes
2
answers
234
views
Curve Index of control point
I have a Curve object with two Splines and I want to use the Sample Curve node in conjunction with the Set Position Node to move the curve points. But with two splines all points are mapped to the ...
- 569
0
votes
1
answer
29
views
Resample Curve Clears Tilt
I have a cluster of generated splines made to look like plant stalks. They are instanced on points and then I set their individual properties. In order for me to set the curve radius I have to ...
- 223
0
votes
0
answers
12
views
Connect Planes generated by coordinates to a curve
I have some coordinate data generated by an app that I'm generating planes which allows me to visualize in 3d space a path (see screenshot).. Ideally this is good but it would be awesome if I could ...
- 101
2
votes
0
answers
76
views
Geometry nodes tries to join splines when deforming mesh along a curve object
EDITED: I'm trying to deform copies of a mesh-cube along a curve (and eventually animating them moving along the curve). My problem is that as I'm drawing multiple splines for the curve, the objects ...
4
votes
2
answers
450
views
Geometry Nodes: How can I target each spline individually in a curve object?
Let’s say I want to build ladders with geometry nodes, using a bezier spline as « main » object.
I would duplicate the spline to have two rails
and add points on the curve to instanciate the ladder’s ...
- 2,398
0
votes
0
answers
25
views
How to draw line from origin to the vertex of a curve
I would like to make the animatio in the photo,I attached in the link the model that I made
https://github.com/kebab03/fourier2d_try the model that I made
I want help to make the ...
- 69
3
votes
1
answer
180
views
Set Curve Radius of **Realized Instances** by Spline ID
I have a series of Splines (10 in the below example), created by realizing the instances generated by an Instance on Points node:
I am attempting to randomize the radius of these Splines.
If I ...
- 909
1
vote
0
answers
116
views
Geometry Nodes - Move points from other Splines using proximity
I have a horizontal curve (red node in below image), which is instanced on a vertical curve (green node in below image).
The vertical curve has 3 points (ID 0, 1, 2) and the horizontal curve is ...
- 909
0
votes
0
answers
16
views
Most Efficient Way To Match 2 Bone Chains
I am working on a Creature Spine IK rig that allows the animator to swap between using a traditional spine rig and an IK Spline for managing the spine.
In the IK Spline, the root of the spine chain is ...
- 57
1
vote
1
answer
182
views
Rotate instanced curve vector to point away from original curve
I am utilising aspects of the following tutorial in a project but am deviating from the tutorial:
https://www.youtube.com/watch?v=T__5FyCHL4E&t=1273s&ab_channel=MaxEdge
So I am instancing a ...
- 218
2
votes
1
answer
138
views
GN: Convert spline factor to gaussian curve function
How would I convert spline factor into a gaussian curve using math?
I am able to do it with a float curve but would like to make it parametric.
example with float curve:
EDIT:
figured out how to ...
- 218
0
votes
0
answers
269
views
Geometry Nodes : handle each spline individually
using Geometry Nodes on a curve object, is it possible to handle each spline separately ?
For instance, I would like to compute some stuff depending on each spline's length.
But the Curve Length Node ...
- 2,398
3
votes
2
answers
587
views
Geometry Nodes Curve / Spline length simple math
I finally figured out, after searching for a while, how to make my Curve extend the way I want it to. But now I have the problem that I do not know how long the curve is.
The goal is to multiply the ...
- 681
2
votes
2
answers
347
views
How to remove instances from some parts of a curve? (Geo Nodes)
I'm trying to create a prodecural rollercoaster. I managed to include the pillars, but I want that, in some parts, the pillars don't show up, like in a loop:
How can I do this?
A side problem that I ...
- 169
2
votes
1
answer
141
views
How does the spline-to-mesh conversion algortithm work?
I'm puzzled by the process that Blender uses to convert splines (from an imported SVG) to meshes.
This is the original SVG:
and as (Inkscape's) SVG
...
- 663
0
votes
2
answers
35
views
When animating End Mapping, can the spline ends stay with each other until they split off?
While experimenting, I found out that the endpoints of splines can extend so that they stay together until they split off. Unfortunately, however, I do not understand how this works.
I managed to do ...
- 681
3
votes
1
answer
234
views
Spline IK with control of both ends
Hiyo!
I'm trying really hard to come up with a way to take a bone chain, for example of 5 bones, and use a Spline IK to match this bone chain to a curve WHILE controlling the exact position of both ...
- 57
1
vote
1
answer
457
views
How to access the position of the previous control point in a curve line in geometry nodes
This node setup is meant to generate routes for drops of water.
It wraps curve lines on the surface with the geometry proximity node.
Setup
Result
I would like each control point (except the first ...
- 85
1
vote
0
answers
38
views
How do you mark (and measure) the intersection of two lines without adding vertices?
My issue is that I would like to mark and measure the intersection of two lines so that I can run a driver off the resulting measurement. I thought of adding a vertex, however this will cause the line ...
- 11
4
votes
3
answers
568
views
Geonodes: Curl a line with increasing curvature from origin
I'm trying to curl a line via GeoNodes. See here:
As you can see, the line stays fixed at its origin and then curls according to an angle/curvature parameter.
The length along the curve stays ...
- 53
0
votes
1
answer
490
views
How can I get random phase offset per geometry node group
I want to get a wave effect using geometry nodes and splines, and I did this using a gradient texture and RGB curves. Is there any way I could get random phase, so that they all don't move in perfect ...
- 537
2
votes
2
answers
351
views
Looping an animated spline trim curve with a small delay for the start in geometry nodes
I'm having trouble looping an animation on a trim curve for a spline with geo nodes.
I basically want the end of the trim to go from 1 to 0, then wait (a little delay) for the start to go for 0 to 1, ...
2
votes
1
answer
195
views
curves: addings segment between to points via python
I want to add a segment between two given points, I don't want to add a new point, just connecting the two points. Does someone know how to do this with the low level api?
-1
votes
1
answer
58
views
Extruded spline is twice scale of resulting bevel [duplicate]
I've drawn an architrave profile and swept it around another rectangular path using the Bevel command. It looks great, except the resulting form's cross section is about half the size of the original ...
- 89
2
votes
1
answer
437
views
The Raycast node not working as intended
I want to make some random splines that start from an object and end on another (in this case start from plane and end on the surface of Suzanne).
Most of them follow geometry nodes setup but some ...
- 23
6
votes
1
answer
167
views
Creating Curves at the Joints of Objects
It is necessary to create a weld for the tank, for this I needed to create curves in the joint area using Python, then put welds in the curve.
I know how to create curves manually, but there are 990 ...
3
votes
1
answer
306
views
Make helix bent into a circle have same thickness everywhere
Here is the ring I made. I bent (simple deform modifier) a helix by 360 degrees. The helix works right and is the same thickness everywhere, but this is not also true for the bent ring.
I tried to use ...
- 39
1
vote
0
answers
14
views
Using the Draw tool with Screw modifier ISSUE [closed]
So I'm following Jamas tutorial on using the SCREW modifier with the draw tool, and It happens that at some point it goes bonkers.
so if I'm drawing a line in edit mode close to the spline I already ...
1
vote
1
answer
359
views
3ds max: Copy, Instance, Reference - a similar function in the blender. An example of the 3ds max, is in the description
I have a question that I can't find an answer to anywhere. More precisely, I do not know how to ask such a question correctly in order to find an answer to it.
I am interested in whether there is ...
1
vote
0
answers
85
views
cover object in beaded strings?
I am trying to create an object covered in stringed beads, similar to mardi gras beads but I'm having some problems,
First, I start with a cube with the default bounce spline applied, now add UV ...
- 705
1
vote
0
answers
75
views
Create edges between objects' nearest points with Animation Nodes
I'm able to create edges between vectors in a random point cloud (the cubes), and the points on a spline. But the connections are not optimal - I assume they're matched up by index - and thus overlap ...
- 11
0
votes
1
answer
310
views
3ds max user want to find Refine and Connect tool in blender
Hi I'm a fellow user of spline modeling and I cant find the "refine and connect" from 3ds max in blender
this option just create a line/segment between two points/vertices of a curve/spline
...
- 103
1
vote
1
answer
156
views
How to animate splines using animation node
How to animate linear spline (Outline) on a text like its been drawn from start to end of the word using animation nodes,
1
vote
1
answer
278
views
What is the 4th coordinate of spline points?
When trying to set the .co property of a curve's SplinePoints I noticed that it has 4 coordinates, x, y, z and an unknown ...
0
votes
1
answer
35
views
Fill Spline based curves efficently
As you can see on the image below, I got a lot of vertices after converting the splines to a mesh. The splines a drawn manualy from an old map.
I already started with the filling process. Selecting ...
- 155
1
vote
1
answer
256
views
Instance Objects on a Line Mesh or Spline
I want to create an antennae for a wasp that I could move around easily for animation. I want to use cone objects that are instanced on a line and are oriented to the next point. I thought about using ...
0
votes
1
answer
176
views
Animation Nodes: How to create splines between a particle system and an object based on distance?
I would first like to mention that I am a beginner to Blender and Animation Nodes. I am trying to create an animation where an icosphere orbits above a plane that emits particles, and if the particles ...
- 1
0
votes
0
answers
46
views
Help animating objects with different paths that merge
I need help animating 2 objects following 2 different paths, At some point i need them to ''merge'' together and continue.
I did this with two different splines and the constraint ''clamp to'' the ...
- 1
0
votes
1
answer
525
views
Fill extruded spline
I would like to fill this extruded spline. In 3ds Max you extrude the splines and it automatically adds a cap. I would like to reproduce this in Blender.
Any help would be appreciated. Thanks.
- 107
0
votes
1
answer
210
views
how to replicate spline and randomize bevel
I would like to randomize bevel size of the replicated spline.
It look like Curve Object Output - Bevel Depth - doesn't work with list of numbers.
Is there any other options?
Thanks
- 119
0
votes
2
answers
161
views
Animation nodes - Replicate splines - random bevel size
Id like to build set of spline with applied vector noise to simulate lightnings. I have followed Chris.P. tutorial and its done.
But I have two problems.
How can I set different Bevel Depth on each ...
- 119
1
vote
0
answers
71
views
Animation node - How to change the shading (smooth or flat) of a series of splines?
I managed to create an animation with concentric circles in animation nodes, made from points in a circle that I duplicated inside an object output. I want to change the shading of the splines (...
0
votes
1
answer
85
views
how to find close points between two values in animation nodes
I'm trying to make some splines and I found "find close points" node but the problem is it has just one value : max distance , but how can I make edges between two values min and max? or ...
- 480
0
votes
1
answer
336
views
Getting 90 degrees out of a bezier path
So trying to create this wire and I can't seem to find the solution for how to keep the end from collapsing, or pinching, on itself when making a turn like this. Tried adding more points but that ...
