Questions tagged [splines]

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1answer
46 views

Ice-Rock Spell Animation Nodes

I'm trying to get effect below in Animation Nodes. The effect seems simple enough, I just don't know how to set it up. Anyway thanks for looking.
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2answers
49 views

cut out a piece of the terrain

See image. I'm trying to cut out a small piece of the terrain to use for particle system (scatter trees, grass etc). I used the knife tool to draw the area (orange line). How can I then delete the ...
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1answer
23 views

Animation baking error

To showcase the problem the easiest way, this is what the issue looks like: https://youtu.be/esihE0ob7U8 As you can see, the track chain makes a momentary 'jump' when the baked animation is played ...
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1answer
27 views

Is there a faster process for converting splines into rigged meshes?

I wanted to have my character's arms be more akin to that of a cartoonish noodle, so I decided that the best way to accomplish this would be to create a Bezier curve, create a mesh out of that curve ...
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1answer
40 views

Problem with imported SVG - cannot convert curves to mesh properly

I imported an SVG caption from CorelDRAW and all letters are fine and get converted nicely to mesh, except the first one - "S". When I convert it to mesh it disappears. Also, it's the only ...
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2answers
55 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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0answers
23 views

Object shadows having lines doubled

The shadows of the objects seems to be doubling up and even when moving the object around it flickers. Eevee Cycles
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1answer
37 views

Is it possible to combine spline IK for the body and regular IK for limbs?

I've got a centipede model with an IK rig. I would like the spine to move along the spline curve in the background, following its curvature, while still letting me pose the legs like normal to make ...
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1answer
94 views

Splines Animated by Sound - Animation Nodes

I've just made the change from Blender 2.79 to 2.81a. I've also updated my Animation Nodes to 2.1.4. Both are installed and working as expected except for the Sound Baking function in AN. Some ...
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0answers
17 views

Render a polyline with a custom attribute

I have an object compound of several thousan of polylines. I convert those polylines to cylinders using the bevel option in the curve tab so i can render them. Those polylines have a float value ...
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0answers
66 views

It"s possible to morph a spline in multi-spline controling the delay on time?

moving in the same direction of this idea -Morphing Object-Distributions on multi-splines(Animation Nodes - Blend distribution of objects on a curve into another curve), i find the way to morph spline ...
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1answer
46 views

3d chess pieces from bezier curves

I am trying to make a chess set in Blender I have made chess pieces blueprints as 2d bezier curves in Adobe Illustrator. Now I would like to import them to Blender and then using Lathe-like operation ...
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1answer
204 views

Animation Nodes -> splines generated and how have a random material color for each spline?

following How to store particle locations in a list? you can trace particles to splines (list), but how can we have a random color in the material for each of the splines... they are all in one ...
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0answers
62 views

Blender 2.8 python. Update Curve object after setting tilt with python

Can't get the curve object to update after apply changes in python in blender 2.81. For example: bpy.data.objects['my_curve'].data.splines[0].points[0].tilt = 2 ...
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0answers
95 views

Procedural Wire Generator in Animation Nodes

I’d like to figure out the method to creating this procedural wire generator inside Animation Nodes 2.1 as depicted in this youtube video here: https://youtu.be/lsXb5ywrg_I The video gives little ...
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1answer
67 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
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1answer
224 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 (...
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1answer
46 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 ...
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1answer
102 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 ...
3
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1answer
416 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 ...
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0answers
57 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 ...
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0answers
19 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.
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1answer
37 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.
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0answers
33 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 ...
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1answer
75 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 ...
2
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1answer
83 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?
7
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1answer
1k 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
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1answer
75 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 ...
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0answers
34 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 ...
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0answers
71 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
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1answer
372 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 ...
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1answer
296 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
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1answer
185 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 ...
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0answers
61 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 ...
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2answers
387 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
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1answer
167 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
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1answer
225 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
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1answer
934 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 ...
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0answers
105 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
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1answer
225 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
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2answers
202 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
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1answer
706 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
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2answers
688 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
767 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
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1answer
766 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
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1answer
774 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 ...
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0answers
79 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
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1answer
641 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
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0answers
78 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
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1answer
62 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 ...