Questions tagged [force-fields]

Force fields can be used to add effect to many of Blender's physics systems (Such as wind to blow particles and cloth, turbulence to smoke, etc.)

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37 views

Pack instances of object on surface of mesh

I'm trying to achieve something like this (https://www.instagram.com/p/B9E5hH-oKi8/) with blender. Is there any way I can achieve something similar? Maybe by using a force field and a particle system? ...
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1answer
250 views

How to bake a particle animation over 250 frames

I have been following this guide for making a particle animation: https://www.youtube.com/watch?v=2bv973aqx-w At the end, he says you just increase the end frame in the bar at the bottom up to 500 and ...
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34 views

Morphing/contracting under physical force

I'm a biologist and I work on cell deformations under stress. I am new to Blender. As a part of my project, I want to animate/simulate cells deforming under contraction force. I want to morph/contract ...
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21 views

Apply one acceleration to all objects

Can I make a force field that affects every object according to their mass, so that all objects accelerate at say 1 m/s^2, is that possible in blender? If not possible via UI is it possible via ...
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1answer
211 views

Make force field only affect objects while they are within a specific area

I'm trying to emulate an object floating to the surface of a liquid within a soft body simulation using a wind force field, but I have discovered to my dismay that wind force fields don't care about ...
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30 views

Multiple independent force fields

I'd like to simulate the CO2 adsorption process in several spheres (nanoparticles). I am able to do it in one, but I am struggling when adding a second, third, etc... mainly because when introducing a ...
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2answers
538 views

How to create tentacles moving with the wind?

I have the feeling i'm on the wrong way to do this. Because its part of the mesh. So, maybe somebody know it. How can i add movement to the tentacles in the wind? Like Hair. Sadly the whole mesh move ...
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1answer
60 views

Hair Particles interaction with wind [closed]

I use wind as a force but as after baking i saw The wind just blew away my hair particles from the mesh How to solve the issue
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102 views

My hair doesn't flap in the wind

I have a logo consisting of two letters covered in fur that I am trying to get blowing in the wind for a client project. I have a wind force field on which is affecting the hair fine, but the hair ...
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1answer
1k views

Physic simulation is visible in viewport, but not in the animation render

My physics animation is working as expected while I'm inside Blender. When I try to render the animation, the simulation is not running. Every frame is identical (the objects are static). Viewport: ...
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51 views

Smoke Flow Force Field isn't affecting Hair Particle System. How do I affect hair with a smoke flow force field?

I have baked a simple smoke-simulation which is affected by a wind force field, and a turbulence force field. It's looking great so far... Now I add a simple plane with a hair particle system and a ...
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1answer
55 views

Wind not working (ver 2.83)

Simple quick setup following tutorial, but wind not working. Cloth hanging properly, but wind @ 20000 force has no effect. What am I missing? https://drive.google.com/file/d/...
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1answer
152 views

Reverse Curve Guide Direction

When I create a curve and add 'Curve Guide' Force field, at one end there is a dotted circle and the other end a solid circle. As far as I have understood, the solid circle is for particle start and ...
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17 views

Particles/fluid attaches or fills the volume of an object

Holla, Right, so I'm curious on how to achieve a certain effect via two different approaches. What I'm sort of trying to achieve: https://www.youtube.com/watch?v=KFYFh8w4758 Case 1: I'm looking for a ...
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37 views

How to attract "Curve guide" particles with a Secondary force field?

For a asteroid simulation ,some particles (spheres) on a curve guide need to be attracted to the centre(magnetic force field). However,after setting the mass of particles to the lowest value(0.1) and ...
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1answer
30 views

Move randomly a plane with cut parts| Paper Furr

I am looking to create a sort of "flag", a plane with some cuts that are creating sort of "leaves" and I need to open these apertures with turbulence or wind. Basically I need to ...
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1answer
155 views

Floating Plastic bag in Air with Wind

I tried to recreate a plastic bag after watching a tutorial but failed to achieve the desired look. The plastic bag is supposed to be floating and moving with the wind but instead, while playing the ...
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1answer
486 views

Forces field Wind does not affect hair

everytime I try to add wind in my scene the hair is still static. Only if I move the wind object the hair is moving. But if I dont do that the hair goes in the right direction but doesnt move. I have ...
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1answer
59 views

What is "Z Direction" in Force field?

Hi. I'm doing some particles following guided line work. And I was wondering the function of "Z Direction" in force field which is applied to curve(=guided line). What is the exact function of z ...
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1answer
191 views

Enable/disable Force Field function of keyframe

So I have a simulation where I want some force fields to be working from frame X to frame Y, with the rest of the frames performing other types of simulations... is there a way to achieve this, ...
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48 views

Particle separate

I have created a blender animation with three particle systems, which use molecular script for collision. - 1st particle system are blue UV spheres, whithout magnetic field weight - 2nd particle ...
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0answers
485 views

Smoke flow force field not working with Mantaflow Gas

I'm making a smoke simulation with Blender 2.82 and I'm trying to guide a particle system with a smoke flow field (like this video: https://www.youtube.com/watch?v=iddFzef4H6E). Both normal velocity ...
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1answer
93 views

How can I make different particles follow many curves in same scene?

How can I use 8 curves having Force and Curve in physics panel? Notice that Curve Guide is 4 time slower than Force and Curve.
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1answer
100 views

How can I prevent force fields from affecting hair or other particles?

I want the turbulence force field to only affect my smoke sim, but it's also messing up my hair particles. I've tried setting Effector Collection to the collection the smoke simulation is in (the hair ...
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0answers
141 views

Blender - Vector Field Animation

I am trying to create an animation of a vector field for my university Physics project. I ideally would like to create something like this https://www.youtube.com/watch?v=gcQuqxYU-UY so with moving ...
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0answers
51 views

What metric unit does the force field use?

What unit does the blender physics 'Force Field' use, e.g: The 'Strength' in 'Force' ? I'm using the metric(The answer doesn't have to include only metric) preset.
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2answers
105 views

Initial animated particles on a force field path: How to control/hide?

I can hide the emitter easily and control the end where the particles "die out". Yet I'm also looking for a way to hide the initial portion of particles lumped up i front of the cue of a system with ...
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1answer
67 views

Physics object with force field render oddly shaped and jagged

This question still puzzles me: When f-12-rendering (both Cycles and Eevee) frames with a cloth animation the banner-object behind the airplane appears oddly shaped and utterly jagged. Please inspect ...
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1answer
136 views

Need Help With Settings for Hair Particle System \w dynamics enabled

Goal: Model of Solar System, I'm currently stuck on some animations I'd like to sketch up for the sun. Scene Setup: Currently, there is one main object (icosphere), the sun (in blender terms, it's ...
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1answer
61 views

Two Particles systems attracted to same force field

So I have a NurbsPath that I turned into a Force field for a particle system, but I am trying to add an additional particle system to the scene but it is always attracted to the Force Field. Is there ...
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1answer
895 views

Is it possible to create vector fields based on a math equation?

If creating a vector field based on an equation is not possible, how create an equation-free 3-D vector field in blender? The arrows should have color based on the magnitude of force they exert on ...
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307 views

How to bend parts of mesh with a force field?

I'd like to make feathers on a tail of a model bend to the force fields. I've tried some tutorials but after spending whole day trying different methods, none of them worked propely. For example in ...
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79 views

How to merge particles to new shape blender

I am looking to achieve an effect similar to the particles shown in this tutorial: https://www.youtube.com/watch?v=Q93pE5jB1Uw BUT When the particles are in mid-air - whilst being affected by the ...
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2answers
128 views

how to make a field of shakiness

Is there a way to make a 3d space of shakiness( or any kind of effect), that if an object passed by it or stay in it can be affected and when the object goes away of it that effect ends? Thanks, guys ...
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175 views

I don’t know why blender 2.8 keeps crashing when I do simple task

So I started doing this project, creating a tornado with particles and force fields and when I go to press play, or move the playhead it repeatedly crashes, and can’t get past this point. I don’t ...
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1answer
449 views

How do I limit particles to move only on certain axis?

I have a turbulence force field that moves some particles around, but I don't want the particles to move on the Y axis but only on the X or XZ axis. Is there any way to achieve it? I already tried ...
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1answer
508 views

How can I make scene with multiple gravities going in opposite directions without using a force field?

I'm making a scene with multiple gravities affecting different objects that can interact with each other (those gravities are going in two different directions so I can't just cheat by changing an ...
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1answer
659 views

Blender 2.8 curve guide forcefield and torus knot

I was just playing with blender 2.8 particle systems and I wanted to make my particles follow a curve. I created a torus knot path using the Torus Knots+ plugin but it doesn't seems to work. I managed ...
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1answer
248 views

Field Weights properties not working as expected

Very new to Blender, and I've just been following some tutorials to help me achieve my goal of creating a smoking logo. I've found plenty of helpful ones, but not quite everything has come together ...
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1answer
440 views

How do I get particles to follow an animated path or armature?

I'm doing this wormhole tutorial https://www.youtube.com/watch?v=K2WTH016rfk and I'm trying to get particles to also follow through the animated tunnel. Emitting from the far end and coming toward the ...
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1answer
44 views

Random computer luggishness using Blender

I am following some littlwebhut tutorials and things are going OK, until my computer slows way down and won't do what the video tutorial is doing. I could not get it to apply a forcefield last night, ...
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177 views

How can i make to objects act like magnets so they push each other

I wanna make to object push each other and have the same effects as magnets
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105 views

Understanding the dynamics implementation (rigid, soft body and Force Fields)

i'm currenty studying the blender dynamics and physics implementation for research purpose, but i'm struggling to do so. I've already searched extensively in the documentation pages but still I haven'...
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1answer
101 views

What is the physical foundation of Force Fields?

I would like to know the physical foundation of the force fields in blender. For instance: what are "Wind", "force strength", "flow"?
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2answers
2k views

Wind force field not affecting cloth object

I already looked online, but couldn't find anything that worked. can someone take a look? Here is the file:
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1answer
3k views

Blender 2.8: Restrict influence of Force Field to its Collection

How do I restrict the influence of a Force Field to the Collection it's in? I'm trying to simulate falling leaves in Blender 2.8. I have a Collection with the Leafs_Emitter particle system and a ...
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1answer
284 views

Changing Physics of Waving Flag in Python

I have created a Blend file of a flag waving in the wind. This is done using a Wind Field and the Cloth physics attribute added to the flag mesh. The animation renders nicely in the Blender API using ...
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435 views

How to turn off force fields for rigid bodies?

How can I switch off a certain force field for only some of my dynamic rigid bodies in the scene without keyframing “Dynamic” and have the objects which were affected by force field still interact in ...
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1answer
677 views

How to enforce planetary gravity on fluids?

I'm trying to make a scene with a few small planets, but when I went to make a lake/river I couldn't find any options to have the fluid's gravity be relative to a point (aka the planet's center). I've ...
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1answer
314 views

How to make an interactive two-finger robot gripper and grab things with it?

I am trying to make a two-finger robot gripper. The grippers use soft body physics and my goal is to move them towards an object in the middle of the scene to just grab it by pressing the grippers to ...