Questions tagged [simulation-nodes]

Use this tag for questions about Simulation Nodes, a geometry node-based mechanism that allows you to animate geometry (available in version 3.6)

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Line art modifier - Rbdlab cell fracture issues

This is my first post, so please be kind :) I’m using rbdlab to fracture an object into multiple cells (walls, doors, bricks, complex objects) I use line art modifier to add some cool style to the ...
FunnyKnowledge's user avatar
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14 views

Is it possible to continue baking a cache from the last .blob file, after a crash?

I've got a simulation nodes particle setup which is around 2000 frames long. Blender won't bake it at the particle density I need - it keeps crashing after a few hundred frames, and the only way I can ...
Nickh129's user avatar
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1 answer
31 views

Simulation Nodes Motion Blur

Can someone explain to me why the motion blur behaves so strangely when using simulation nodes? Even if I give the individual points their own ID, a motion blur is strangely rendered, but at the same ...
Andi 's user avatar
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Crashing with a cached simulation nodes setup

Just cached 1800 frames of a simulation nodes sim. It chugged through them fine (each .blob file is max about 30Mb) but as soon as it had finished the frame range, it crashed. Opening the file makes ...
Nickh129's user avatar
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1 answer
73 views

Geo Node Maggot Simulation: Problem! Maybe indices not consistent?

I'm coming up with a problem with a quiet complex system that is probably to complex for my level of geo nodes knowledge. Still i hope to solve and understand it, learning with challenges... I'm ...
Rolando's user avatar
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Trying to make a spring simulation in simulation nodes

I've got a 2d fluid simulation in geometry nodes (which works). I want to displace in Z depending on the luminance of a texture (which also works), but the particles jiggle about too much, which I don'...
Nickh129's user avatar
8 votes
1 answer
597 views

how to animate a bee swarm

i wish to simulate a swarm of bees where the bees are all gathered on their hive at first, then a rock is thrown at their hive, making the whole swarm agitated and chaotic all of a sudden. The rock is ...
videoofarmer's user avatar
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31 views

how to change point light color from geo nodes using drivers

I have this geo nodes setup where a point light is instanced in the middle of explosion i want this hue slider to somehow affect the Color or hue of point light in EEVEE
AAA's user avatar
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Multiple simulation zone bug in geometry nodes?

Simple case. I've a scene with a complex geometry nodes on a mesh but i simplified it for the post. Goal I need to use 2 simulation zones in my geometry node modifier but... Problem ...the last ...
Andrea Ciani's user avatar
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1 answer
40 views

How to apply Object Space transforms in simulation nodes

I have a node setup applied on a cube and referenced another object in scattered some points and with sim nodes gave them an upward initial velocity and a downward constant force (gravity) ㅤㅤ ㅤ i ...
AAA's user avatar
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Why would a simulation nodes setup stop simulating after a certain length of time?

I've got a fluid sim running in simulation nodes (based on Bad Normals' setup). I need it to work for quite a long time (around 5000 frames), but I've noticed it currently stops moving the particles ...
Nickh129's user avatar
2 votes
2 answers
64 views

Bake a geometry nodes simulation and then offset in time

I'm trying to find a way to loop a geometry nodes simulation. It's a bunch of self-colliding objects, so I suspect the answer is going to be slightly hacky. My most functional idea is to bake the ...
frankytenmen's user avatar
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Adding a simulation zone mess up previous nodes

I'm trying to animate the opening of a book (especially the pages), and the pages turning. For some reason, I can't add a simulation zone without messing up my current node tree. As if it was ...
Lutzi's user avatar
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Triangulated Edge Subdiv for Differential Growth in Geometry Nodes - Improvements?

I tried to create a Geometry Nodes Tool similar to this destructive Add-on https://github.com/inca/blender-differential-growth This is related to my question here: Capture Top and Side Boolean from ...
Todes Digga's user avatar
3 votes
2 answers
249 views

Compute on all points in geometry nodes

I try (for a while now) to make a gravitation simulation with geometry nodes. The computation is not complex, and I get something that is almost OK. The problem is that it seems that it's not possible ...
Metal3d's user avatar
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3 votes
2 answers
238 views

Blender Geometry Nodes: Rolling disc Simulation

I have a question about a different version of the GN setup topic as discussed in this thread I've been struggling to make a wheel version of this setup, unfortunately to no avail :( The ball tries to ...
jacobo's user avatar
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1 answer
52 views

How to make the liquid to flow in a circle forming a swirling bubble

I tried to make it as natural as the gif, but I still feel like I'm not good enough. The liquid I expressed is not three-dimensional, so please help me
smileman's user avatar
1 vote
1 answer
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grass particle system spinning

I have been working on a project , I used a grass model , and I wanted the grass particle to react to the turbulence and the wind force , so I can make a realistic grass wind , but the grass , but ...
Games nr's user avatar
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1 answer
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Capture Top and Side Boolean from former Extrusion to new Geometry (Geometry Nodes)

I am trying to create some lichen like, differential growth style animation, where the open edges of a mesh extrude outwards and "subdivide" (by extruding individually and scaling the ...
Todes Digga's user avatar
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37 views

How do I transfer a named attribute from one point to another by index lookup?

I'm trying to re-implement a space colonization approach in Geometry nodes, and I'm having a ton of trouble trying to get the data flow working correctly. I've scattered "food" points, and &...
user2224491's user avatar
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is there a way to fade image cards where they interact with surfaces

I have a geo nodes explosion sim with image planes instanced to points i want to fade the images where it collides with surfaces not just a plane but any surface
AAA's user avatar
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Light particles/Light streaks effect

I am trying to recreate an animation seen here: https://www.youtube.com/watch?v=eTes6yYH4iU However, I am unable to recreate the light lines seen in the video. I have achieved similar to wanted ...
I. A.'s user avatar
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Geometry Nodes Simulation: Make point cloud react to Objects moving at a certain velocity

I want the points to move away if certain objects are too close. But I want the points to change their velocity based on the objects velocity. This is the complete node tree: To reach my goal I ...
Lucho's user avatar
  • 115
1 vote
1 answer
57 views

How to reference rotation of every instance

I'm trying out simulations in geo nodes and I want to have the cones (instances) to move around and follow each other, similarly to a school of fish. I currently have this set up, I want to get the ...
Felix Groves's user avatar
1 vote
0 answers
19 views

How to Simulate geo nodes Particles in World Space? or Atleast Fake it [duplicate]

i have a geo nodes sim with two swords colliding one is set as emitter other as collider but the particles are following emitter swords rotation i have thought about locking the rotation vector to a ...
AAA's user avatar
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1 vote
1 answer
34 views

Bending loop effect with Simulation Nodes

I try to animate a simple and lightweight leave wind movement, for a complete tree. I use Geometry Nodes to scatter leaves on branches, and a geometry node on the trunk mesh to scatter branches. I ...
leevmealone's user avatar
5 votes
2 answers
175 views

Double Pendulum in Geometry Nodes

I want to simulate a a double pendulum in geometry nodes. I'm using this derivation from this site. However, the simulation is just a bit off. Either it will eventually just start spinning around in ...
TheJeran's user avatar
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3 votes
0 answers
122 views

Sub-steps setting for Simulation Nodes

In the Blender 4.0 online reference, there is this mention in the Simulation Nodes section: In the Node Editor the inputs can be renamed, shuffled and removed. This is also the place where sub-steps ...
Karel Dobbelaere's user avatar
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0 answers
42 views

Controlled repetition of an animation using simulation nodes

I have this animation where I shoot out a bunch of points in a half-circle using simulation nodes. Is there any way to have this animation repeat itself every x seconds, using maybe a value or switch ...
Rankson's user avatar
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0 answers
76 views

Geo nodes setup for mesh that is procedurally fragmented to explode

I am working on this project where I am procedurally fragmenting a sphere. After it is fragmented (The process happens in a simulation zone). I want the fragments to fly apart from one another and ...
Greatest 's user avatar
1 vote
1 answer
83 views

Simulation-Nodes (?): Add values to named attribute over time

As seen in the attached image, a sphere "writes" its distance to a named attribute ("Proximity") of the plane - visualised via a shader-setup. How can I incrementally add values to ...
Harsi's user avatar
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1 answer
83 views

Time offset in simulation nodes?

I'm trying to create an addon, which creates smear frames of animated meshes. It's a geometry node tree, applied to a proxy mesh (single vert mesh), which reads the animated mesh. The node tree needs ...
schwarzgrau's user avatar
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51 views

Animate Noise Texture W through Simulation Zone

I'm currently testing the Simulation Zone in Geometry Nodes and wanted to animate just the W value of the noise texture through it. My current setup is just displacing the mesh, and the Simulation ...
Engels Soto's user avatar
0 votes
1 answer
71 views

What are the technics to create flowing liquid static geometry?

I need to create something like this – chunky & very pronounced liquidy abstract geometry based on a restricted surface. Simply put, I want to create the roof for the cartoon house looking exactly ...
Marfa Razmakhova's user avatar
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0 answers
44 views

Get an object to go toward another object in geometry nodes

I'm trying to get this missile to accelerate its way toward the target and stop/dissapear on impact. I cannot get it to work. What can i do.
SolvierNier's user avatar
1 vote
1 answer
75 views

Make Simulation Nodes run slower?

Is there a way to make Simulation Nodes skip every other frame, or perhaps run only on every Nth frame? I feel like I'm really close to figuring this out but can't quite get there.
scatterbrain's user avatar
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39 views

Animate objects along normals using Geometry Nodes

I am attempting to create a Geometry nodes workflow that will animate arrows along normals. The initial arrow setup is easy enough, but how to get them to animate/follow the normals is another ...
Ron Letkeman's user avatar
2 votes
1 answer
138 views

How to create a crack in the ground that develops over time

I'm relatively new to blender and I'm trying to create an effect where I have a ground plane and a crack should develop from the left to the right of the plane over time. I have no idea where to start,...
Yolo 300565's user avatar
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0 answers
21 views

Blender Geonodes - Move colliding Vertices outside of object?

So, I have something like this already: And these are my nodes: My question is: Is there a better way of doing this? Like the offset automatically changing depending on the sphere's speed? Or maybe ...
Macciavelo's user avatar
4 votes
1 answer
274 views

How does a monkey head touch a cube

How does a monkey head touch a cube
ASD1 ASD21's user avatar
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0 answers
45 views

How can I trigger Geometry Nodes with the keyboard?

I'm replicating PowerPoint with Geometry Nodes. I have a "slide" integer input. As I increase the number, a camera moves along a line. I do that using a simulation zone. See, I want the ...
Robin's user avatar
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0 votes
1 answer
96 views

How can I stop scaling instances based on their surface proximity?

I have been trying to make a procedural bubble generator where the instanced spheres wouldn't intersect. Obviously, the issue is basing their scaling on something other than the mutual distance of the ...
Adam Šimek's user avatar
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0 answers
241 views

How To Use Force Fields In Geometry/Simulation Nodes? [W/ .Blend]

I apologize if this is obvious, but I'm still learning Geometry nodes and I'm stuck. I built this node tree from a video on YouTube, and what I have it doing is behaving like snow particles blowing ...
Cullen Tapprich's user avatar
0 votes
2 answers
81 views

Write an object's speed to an attribute using geometry nodes simulation?

I thought what's shown in the image below would work, but I'm having a difficult time because it seems the Evaluated spreadsheet doesn't update consistently. And if you put this node group on an ...
eobet's user avatar
  • 342
1 vote
1 answer
90 views

Simulation Nodes: Particles with normal-aligned velocity

This is driving me nuts. I'm trying to generate a particle system with Simulation Nodes in which the particles spray out in the direction of the face normal from where they spawn. I got it to work ...
scatterbrain's user avatar
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0 answers
61 views

Simulation nodes softbody

I’m trying to do a softbody simulation in gemoetry nodes. Basically what I’m doing is calculating a “relative position” for each vertex by subtracting position from edge position (position evaluated ...
justry's user avatar
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2 votes
1 answer
176 views

How can I make simulation node particles stop and swap geometry at the end of their lifetime?

I have a geometry node setup that generates randomly moving points. Ideally I'd have them to start out as circles then pop without moving position once they reach their lifetime, like in this gif. So ...
Confused_User's user avatar
1 vote
1 answer
208 views

Maze Generation with Geometry Nodes and Simulation Nodes - Attribute Updating Issue

I'm currently working on a maze generator project using Geometry Nodes and Simulation Nodes, inspired by Daniel Shiffman's tutorial and the corresponding code. I've made good progress so far but have ...
Tim R.'s user avatar
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0 answers
31 views

Capture a point cloud at a specific frame from the geometry nodes simulation zone

I have a point cloud which is the the result of several iterations in the simulation zone of the geometry nodes. Now, I would like to capture this specific frame of the simulation e.g. to use it as a ...
Tobias Lemke's user avatar
1 vote
0 answers
79 views

Simulation nodes: Create an instance, scale it up, scale it down, and then dissapear

I am trying to create a simulation that, at a certain point in time, creates a point, attache an instance there, and then scale it from 0 to 1. And upon reaching scale 1, goes back to scale 0. And at ...
faustoart's user avatar