Questions tagged [splines]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
1
vote
1answer
18 views

Custom squash and stretch without spline length ratio

When I add a hook, calc_length() is calculated without modifiers. I don't fully understand the purpose of calc_length() now, ...
1
vote
1answer
43 views

Extrude multiple Shapes along the same Curve

I wish to switch from C4D to Blender and I'm trying to replicate the same workflow I'm already used to before making the step. In this specific case, I need to extrude a number of different Shapes (...
0
votes
1answer
35 views

rig for hardsurface deformation

I'm trying to build a simple rig in order to deform a rectangular prism (simple mesh for the time being), but it needs to have its deformation locked to just one an axis. The resulting mesh should be ...
0
votes
1answer
35 views

How to scale along a spline Ik rig

I was curious if it was possible to scale this along the spline of a spline IK rig almost like it was growing along the spline. Below is how it scales now but I do not want it to look like this I ...
2
votes
1answer
100 views

Animation Nodes - Blend distribution of objects on a curve into another curve

I've been trying to recreate the effect from the Cinema 4D tutorial below: https://www.youtube.com/watch?v=BPv2HVvQfGo I'm stuck at 9:55 where he uses the inheritance effector to be able to morph ...
1
vote
0answers
26 views

Define UV coordinates for a curve

I have a file that define some curves and values from 0 to 1 for each point in the curve. I am trying to create a material which uses this values from 0 to 1 as the UV coordinates for a colormap ...
1
vote
0answers
18 views

How to change color along spline?

Would like this spline to have a repeating pattern of red, white and blue along the length. Right now I'm stuck with just one red, one blue and one white along the length.
0
votes
1answer
26 views

I have accidentally toggled something to show some weird dotted lines [duplicate]

I have just accidentally toggled on some weird dotted lines. Any idea how to turn these off. P.S. the model was imported from Fusion 360.
0
votes
0answers
13 views

Create Spline from Formula (Vector Valued Function) [duplicate]

In Cinema 4D, there is a formula spline whose shape is dictated by a vector valued function. This allows me to create very unique shapes very easily, such as the following: I am not sure if there is ...
0
votes
0answers
27 views

Having trouble Parenting a Bezier curve

So I am working on a mesh of a character with a tail. I used a Bezier curve to IK that but I'm having trouble. Everything is fine until I try to parent the curve to the armature in some what either ...
0
votes
1answer
22 views

DWG/DFX plans snapping and modeling

I have been using 3ds max as my main program for archviz. Due to a change in workplace I no longer have access to a licence and have been looking for a free alternative and found blender. My usual ...
1
vote
1answer
60 views

Joining two curves in edit mode

I'm trying to get rid of some gaps in my mesh. In object mode it looks like this So it is one object. When I switch to edit mode it turns out that splines are subdivided. How do I join them?
0
votes
0answers
37 views

How to create this animation and make it dynamic to interact with rigid body - spline wrap?

I want to create in blender an animation similar with this one: I am wondering how could I do and if it is possible to interact with rigid body objects?
7
votes
1answer
999 views

Spline wrap animation

I want to create in blender an animation similar with this one: I am wondering how could I do and if it possible to interact with rigid body objects? Who can help me, please ... thank you!
1
vote
1answer
49 views

How to make a mesh deform accurately along curves?

I started to make a mountain pass based on a real road, but I encountered this problem. It gets better when I drag a curve point before the curve down to hell(see pictures), but that's not a great ...
0
votes
0answers
61 views

How to achieve automated followthrough with splines and constraints? (troubleshoot)

I'm creating a rig that involves the flapping of wings. The goal is to have the long finger/feathers act almost like a reverse IK constraint where the target is the root bone. I attempted this by ...
0
votes
0answers
26 views

extrude svg with no fill [duplicate]

I'm drawing splines in photoshop, exporting as AI, converting online to SVG and importing to blender to extrude and work on them. But they have no fill, so they won't extrude the way I usually extrude ...
0
votes
0answers
41 views

Create a curve from intersecting plane and mesh

I have the next problem. I need to create a curve from the intersection of this mesh (the slide) and the plane to make a path for a sphere to follow in an animation. Can you give me a guide on how to ...
2
votes
1answer
187 views

how to connect objects with splines with animation nodes?

I have a group of objects all with keyframed movement. I want to a create splines between the closest objects as they move like this... https://www.youtube.com/watch?v=k9MvcCXsHHY I know you can ...
0
votes
1answer
105 views

The bones connected to the Spline IK do not follow the whole armature - Still need help

Okay, so I have a mesh that has a tail so I googled how to rig the tail and it said to use a Spline IK restraint. I built the spline on the bones of the tail and now when I move the whole armature, ...
1
vote
1answer
134 views

Assign random color to spline list

I created a spline list following this guide. Now I want to assign a different color to each spline using Cycle's random node, but it doesn't work because the splines are grouped into one object. My ...
1
vote
0answers
42 views

Spline IK gets disabled on random frames (new depsgraph) / bone drivers get updated too late

I’m trying to get my Spline IK working. It’s behaving the way I want to, except for random frames where it looks like the Spline IK doesn’t get applied to the bone chain and the bones go back to their ...
1
vote
2answers
249 views

create gaps between spline points with animation nodes

Following this answer curve intersection with volume in animation nodes, I've managed to create a spline which i use to distribute objects inside a volume. Here is how: But I still need to avoid ...
1
vote
1answer
115 views

Sampling points of a nurbs surface using projections

I'm trying to sample a nurbs surface given certain constraints. Basically I'm trying to reproduce in 3D the following 2D situation. I don't know how to do this in 2D either so I need suggestions ...
0
votes
1answer
129 views

Modeling a car wheel arc: Move vertex to form an arc

I'm really noob with Blender and 3D modelling in general. I started modelling a *very* low polly car, and I wasn't careful at all about the topology, little by little I started adding some more detail ...
0
votes
1answer
318 views

Armature shifts between Pose mode and Edit mode

I'm using s Spline IK system to create the spine for a creature I'm making, but when I activated the Spline IK, some parts of the same seem to shrink or shift a bit. Which slitghly deforms my mesh a ...
0
votes
0answers
79 views

Problem with curve / spline modeling, scale factor

I'm trying to taper a tube-like (beveled curve) object using another curve. Should be simple ... But im always getting a strange 'scale factor' and I dont understand where it comes from. The 'Curve' ...
0
votes
1answer
157 views

Spline auto UV not working

I'm trying to add a simple repeating patter to an extruded spline by clicking "Use UV values as Generated Texture Coordinates" and also using "Generated" mapping in Cycles. Howeever nothing happens at ...
2
votes
2answers
139 views

How to get radius of a spline in animation nodes?

Similar to Is there a way to address the shrink / fatten / radius values of individual vertices on a curve with animation nodes? I've got one main spline that acts as a driver. This spline will have ...
3
votes
1answer
437 views

Rollercoaster Problem: Bones following Curve

I'm trying to make a train mesh follow a curve path. The Curve modifier does this admirably, unfortunately I need to export the animation to a game engine so a modifier just won't do. I tried adding ...
2
votes
2answers
432 views

Create one curve object per spline in Animation Nodes?

I am trying to create a scene where a list of spheres are positioned onto the verts of a hidden icosphere, and as I move an empty through the icosphere, the visibility of the balls is toggled, and ...
6
votes
1answer
559 views

Access hair child strands (animation nodes)

Animation nodes has a Hair Data node that allows you to get Splines from Particle Hair strands. However, it does not seem to output child hair strands. Is there any way to get the Child hair strands ...
3
votes
1answer
523 views

Animation Nodes: Merge spline points

I have been trying to use Animation nodes to create splines on certain edges, as can be seen in this question. It is working, but I am running into a problem: The splines that are generated by the ...
4
votes
1answer
538 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 ...
0
votes
0answers
52 views

Normal spline line in blender

Good afternoon. Is it possible to create a plug-in for the blender to create normal spline lines, which are the same as those in 3d max?
4
votes
1answer
446 views

How to control object's path follow speed based on its position

I am trying to animate a rollercoaster. For now I have a cube following the Bezier path of the track. I need the cube to change its follow speed based on its height. (the higher it is, the slower it ...
1
vote
0answers
70 views

Interpolation bpy.types.Spline

Is there any bpy python function that I can use to interpolate over bpy.types.Spline ? Function with some 'factor of spline' argument and result in translation and quaternion
0
votes
1answer
54 views

How does this works? verts = [[float(i) for i in r[:3]] for r in rows]

I looked over here and found a csv reading script that creates curves, wich is exactly what I need, it´s cool, but I need to modify it because I need to read a differently formated csv, in fact I need ...
3
votes
0answers
572 views

Dependency cycle detected

Older user of 3ds Max, I am a new user of blender. A friend introduced me to your forum to ask my questions. I'm delighted to be here. On this moment, I'm trying to learn the rigging on blender and ...
2
votes
1answer
336 views

How to assign different colors to splines viewable in the viewport?

When importing a .dxf architectural drawing I get all lines drawn in a dark green color. (however they had been assigned unique colors in autocad) Is there an option to change the appearance of one ...
2
votes
1answer
546 views

How to do basic parametric modeling onto a spline

I'm looking for a way to do some basic parametric modeling in blender. I have 3 pieces i'd like to use as a base. 1 starting section, 1 middle and 1 ending. Is it possible to generate a combined ...
0
votes
0answers
49 views

“Baking” spline

I have downloaded a great model of a chainsaw. The author of this model seems to have created the "teeth" of the chainsaw with a spline, at least that's what it looks like to me. Here is a screenshot: ...
1
vote
1answer
456 views

Force redraw / update of curve object

I have written a script that syncs the position of a bezier curve handle to an empty via a handler (bpy.app.handlers.scene_update_post): ...
0
votes
1answer
48 views

Keeping track of splines in curve -> splines.get(), but what is the key?

I have a curve and want to check whether a spline already exists. As other data types, there is a get() method. But what is the key? Since splines.new() takes only one argument (the type), there ...