Questions tagged [animation-nodes]

An add-on that provides a node based visual scripting system designed for motion graphics in Blender. This tag should be used when asking about how to use the add-on and not when asking about animating nodes in general.

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74 views

Arrange the items in a collection randomly on a curve with good orientation in animation node

I've been trying to arrange the items in a collection randomly on a curve and I am blocked. I would like to dispatch multiples object to create diversity. This is my differents test. Blue : Dispatch ...
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1answer
234 views

Animation nodes execute on a condition

I am trying to make animation node run on a specific frame. I compare the time info with the frame i want the node to execute on, and if they are equal, they return true. But I do not understand how ...
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1answer
47 views

Matrix won't stay on my plane

Hi i need help on making these cubes stay on my plane, the location part is easy to do, but the rotation only rotates on it's bounds, not the group's bounds any way i can fix this?
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1answer
232 views

trouble using keyframes to animate a float value (in animation nodes)

Am learning animation nodes. Within animation nodes, I would like to use keyframes to animate the value of a float number, but the keyframes are not having any effect. To try this I right click on ...
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2answers
94 views

Number changing animation with animation nodes?

How to make number changing animation with animation nodes pleae?
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1answer
199 views

How to get instanced object from particle system at location?

I need to check which object is instanced at a certain location. The particle system spawns a collection of objects either as is or with the “Use Count” feature. At the moment I found a way to get ...
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1answer
316 views

rotate object list (with different origins) around a single pivot Animation Nodes

i'm learning about Animation Nodes and i dont know a lot of things haha I want to rotate some objects around a pivot point But i don't know how to do That! Hmmm all is this: i've put a random text ...
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1answer
283 views

Animation Nodes add-on does not appear after installation

So, I was going to make a clock timer animation where a text object will count up over time. I was planning on achieving this by using the "animation nodes" addon but every time I try to import the ...
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1answer
405 views

How to call vertex groups in Animation nodes [SOLVED]

I would orient some instances by vertex normals, but i'd like to control orientation by vertex groups, to give z negative values to some instances, like in the pictures.is it possible? i've tried with ...
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2answers
239 views

Animation Nodes, how to add additional outputs? Missing outputs

I am following some basic tutorials on animation nodes with latest Blender 2.81. Tutorial He is using older version of blender, but right at the beginning he adds a Grid Mesh node with a very ...
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1answer
143 views

Creating a path with differential equations

I'm currently trying to create a 3-D vector field based on an equation. Once I create a vector field, how to actually make the object move along the vector field when placed at a point? My Approach: ...
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1answer
72 views

Scale a mesh from a different origin

I'm trying to create something like 360 degrees protractor or analog clock bars, where every 5th bar is in a different length. Using animation nodes I'm trying to rotate a plane instance around the ...
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1answer
155 views

is “Sound Bake” node here in 2.1.4 Animation node

I can't find find Sound bake node in 2.1.4 do you know if it an other name or is just not here for now ? thank's, have a good day
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1answer
287 views

How do I toggle to visibility of each object in my scene one by one using animation nodes?

I've been creating a timelapse effect in Blender 2.79 by keyframing the visibility of each object in my scene one by one. Each object goes from hidden to visible with a one second gap before the next. ...
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1answer
116 views

Object List from Selection

I would like to create an object list from my selected objects but I can't find a way of doing this on 2.80 and AN 2.1. If this isn't possible, what are the alternatives for animating multiple ...
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1answer
72 views

Can an object ever “own” an AN node tree or are the trees always independent?

I'm a Blender noob. Came from C4D where I made a lot of custom tools ("CSTools") using the Xpresso system. In C4D, the Xpresso was "owned" by the object because the Xpresso tag lived on that object. ...
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1answer
314 views

Animation Nodes Using Time/Frames to affect Objects Materials

My desire is to illustrate dates of sales for townhouses by changing the visible material (changing colors, or changing Shaders, etc). The order of what houses sold when are out of sequence; it's real-...
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1answer
124 views

How to use Animation nodes expression to call numpy.lcm?

I am trying to write a blender / Animation nodes to generate Epicycloid but I am getting an error message from the Expressions node. The imports are math, ...
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1answer
124 views

turn splines from 3d into 2d using animation nodes

I have a list of splines created using a loop, how can a I turn each one into a 2d spline using animation nodes? It is important to note I just have the spline there is no no spline object output.
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1answer
499 views

Animation Nodes slow performance

I've just started playing with the add-on and created some simple tree to generate tiles but the it works very slow. Currently I have weak machine and the procedure may not be super optima but even ...
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1answer
145 views

Shear matrix using vector

Why does the shear matrix example not use two matrix inputs as per several of the other example nodes in this matrix section? (for example rotation matrix and transform matrix) https://animation-...
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1answer
279 views

Animation Nodes: Copy a selection/group of objects

I have several objects in a group. The objects are related to each other via modifiers. The modifiers are stuff like text objects following curves via the Curve modifier. If I select all of them and ...
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1answer
323 views

How to import .py file from another directory in animationnodes2.1? [closed]

I am writing a custom node in animation nodes2.1,and i wanted to import .py file from another directory as a module,for example,i have two directories: ...
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1answer
116 views

How do you call “animation_play()” from AN?

When I run bpy.ops.screen.animation_play() directly from the script ("Run script" button), it plays the timeline and works fine. But if I try to run it from Animation Nodes, it gives me an error: "...
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1answer
45 views

“TypeERROR” in animation nodes2.1

I tried to write a step_falloff node in animation nodes,but i failed,the consoul gave me an error: and my code is: ...
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1answer
115 views

How can I limit frame count by counting a text list?

I have a list of names in a Text Block that are separated by line. There will be different amounts of names. I am using the list to generate titles but want to render one title per frame. I want to ...
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2answers
112 views

Animation Nodes Flow Controll?

In comparrison with Unreal Blueprints i felt the need of Flow Controll in Animation Nodes, like gate. Is there another way then routing - for example - the transformation to an empty like in my ...
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1answer
109 views

Get active camera from VSE Scene strip (Animation Nodes)

I have same scene overlayed many times in VSE with different cameras. Is it possible to intercept Camera used for override during rendering from VSE Scene strip? ...
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1answer
89 views

I'm getting double curves in Animation Nodes loop

In not good in programming, but I'm trying hard and get some results. I'm trying to make a lot of curves from 1 point to points of other objects. And it works fine, but some curves double and I don't ...
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1answer
363 views

Animation Nodes - Animating transparency with wait times

This is a follow on from the question here: Animation nodes loop text problem I am trying to animate the opacity fade of the text object and will use a material's mix shader to set it to transparent ...
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1answer
207 views

Copy materials and material indices to instances which aren't copies of anotther object

From this question: link I learned how to transfer UV maps from one object into a new instance. How can this be done with materials and material indices? AN in 2.8 seems to have a new system but I'm ...
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1answer
286 views

How to control particle's direction by animation node?

As title, i do not have any idea to control particle's direction by AN.
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1answer
223 views

Copy Uvs from one mesh to multiple instances of that mesh in animation nodes

Following this question: How can I transfer UVs from a source to a target using Animation Nodes? I've tried to reproduce the solution with no success. In my case I'm creating a bunch of empty ...
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1answer
132 views

Offset spline vectors each on his own origin. (Animation Nodes)

I would like to replicate an animation as we can see here below with AN; https://twitter.com/archillect/status/1068306137341194250 however I have difficulties to displace from each vector origin. ...
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1answer
246 views

Animation Node Installation Error

Blender says I need to unistall prexisting animation addons before it can let me download the one by Jacques. Which one of these add-ons could it be referring to?
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1answer
120 views

Passing spline vertex property into graph to add or remove it from list

I would like to find a way to tag vertices in spline edit mode in order to append or remove them from lists. For instance; I'm placing Object instances over spline vertices and using its "tilt" value ...
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1answer
442 views

Animation Node (Vertex color) and Cycles Node (Gradient)

I have a problem creating a color gradient in the AN grid (I used vertex color, but only one color remains). This image below shows the effect you would like to have on AN. But I used the array and ...
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1answer
162 views

Motion Tracking Data into Animation Nodes Editor?

I've created a simple motion track from video in the movie clip editor. I can see the motion data in the graph view: I've also created an empty from the motion data and when I hit playback I can see ...
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1answer
191 views

How to round values of a Float List in Animation Nodes?

Math node only has Floor and Ceiling modes, while Float to Integer or Round nodes don't work with Float List (sockets doesn't connect in v2.1 (for 2.79b). Am I missing something here? Making a Loop ...
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1answer
133 views

Looping Smooth Spline Generation That Will Be Evaluated in Animation Nodes

I would like to generate a spline with smooth peaks and troughs. This spline will be evaluated. Once the object following the spline reaches the end of the spline, it returns to the beginning (loop, ...
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1answer
131 views

Output ob.matrix_world.translation as a Vector in Animation Nodes

I would like to make a script which will allow me to output the ob.matrix_world.translation value of an object as I would a normal vector. The ob.matrix_world.translation will be plugged into an ...
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1answer
568 views

How to initialize a variable which won't be refreshed

I am coding a node for animation nodes. I need to initialize a set of variables so I can use them, but I need to do it in such a way that they won't be refreshed (reset to the default value) every ...
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1answer
118 views

How to change color only of selected objects in a matrix?

I'm trying to exempt a couple of objects from being colored by an 'empty' which is coloring the cube matrix based on the distance. In the image there are 2 empties: one is coloring the cubes blue, ...
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2answers
106 views

Revert to default scale when seed changed?

So this is the problem. This is the node network I have (simplified). it just takes random list from objects and should change the scale to zero when value is animated. It works but, for instance if ...
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1answer
423 views

How to apply list of rotations to multiple bones using animation nodes

Currently I am using Expression node to apply rotation to a single bone, is there a way to apply a list of rotations to multiple bones using a single Expression node? I have tried everything, but ...
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1answer
403 views

How to make the skeleton move relative to the bone that is touching the floor using animation nodes

I am trying to make the skeleton to move relative to the bones that are touching the floor using animation nodes. What I did is calculate the difference between the current and previous positions of ...
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1answer
77 views

Imported model scales when I translate

I made a little program for animating coordinates. It worked fine with a cube. Then I imported a .dae model that I had exported from SketchUp. It imported fine, but when I tried to use the program on ...
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1answer
596 views

Animation Nodes: Trigger Action, Save Value if Frame Matches?

I've created a simple stopwatch (Blender 2.79, Animation Nodes 2). I have certain frame ranges I want to time. I have a list which has two elements...a start frame, and a stop frame. Upon reaching ...
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1answer
616 views

Understanding Rotation in Blender (scales on sphere)

I've been following a tutorial https://www.youtube.com/watch?v=Vxc4P0YI2rI which uses Animation Nodes to put scales on a sphere: So in the beginning one scale is duplicated by the Object instancer ...
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1answer
557 views

Change custom Node input through Python console [duplicate]

I have a custom node simulating a laser: The node itself is pretty complex with rotations and whatnot, but it's attached to a Lamp object. In short what it does is illuminate a pixel if some ...

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