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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fire and smoke kicks back in the final half of the animation when I add a wind force field

I am animating a rocket engine and I added a wind force field above the emitter, however when I bake and play the animation, the first half of the animation is fine, but when it gets to around the ...
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18 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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19 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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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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69 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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Blender 2.83, crashes whenever I add force field settings to my hair particle system

I am making a scene in blender where I want the grass to blow in the wind. I added a hair particle system, and made it look like grass. I wanted to add wind, so I went to the force field settings in ...
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34 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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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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41 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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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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22 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
25 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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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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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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16 views

Wind Force Field stops at frame 33

I`m pretty new to blender and i have now 2 issues with which i could need some help. I want to animate an old welder torch welding a railway section (simple) and i added a wind force field behind the ...
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23 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
34 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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16 views

Is Smoke Flow Force Field broken in 2.8x?

I'm experimenting with smoke flow field and it works as expected on 2.79 but when I try to apply the force field in 2.8x it doesn't work at all. Is this a known issue or am I doing something wrong? ...
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25 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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23 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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28 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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8 views

Export soft body data with force fields

I want to export a softbodies animation with the .mdd plugin, but it doesn't take into account force fields, how can I achieve that ?
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32 views

Changing Wind Force Field properties do not affect Cloth Simulation after first application; even if the Force Field is deleted

I'm an intermidiate level user of blender. I tried to practice with cloth and force feild simulation. I decided to dicover each ones function by changing their properties values and baking them again. ...
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29 views

How to make hairs stick to surface (like electrized)

Is it possible e.g. by combinations of Hairs and Force Fields (from Physics toolbar) to simulate this effect of hairs adhering to surface (mesh) by eletrostatic force?
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17 views

Spinning wheel force

I am trying to create a burning effect from a wheel spinning in place. I imagine this being done with a smoke emittor plane in the contact area between the wheel and the asphalt with a spinning force ...
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15 views

Blender Boids Force Self Collision

hi i'm doing crowd Sim using boid force the idea is to follow a leader i have animated the locator and made it a leader but when simulation happens the particles slides and collide with each other it ...
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How do you convert wind strength into km/h?

Is there a way to convert the wind strength of a wind force field into km/h? The answer doesn't have to be a formula and a thorough explanation of what wind strength and flow mean in real world terms.
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25 views

How to visualize a force field in blender?

I was playing around with some vortex and turbulence force fields. I want to be able to see how changing the properties affects the field visually. Is this currently possible in blender? (Found a ...
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38 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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Why aren't my forcefields affecting the fire sim?

I literally can't find anyone with this problem. I follow a tutorial step by step, the person just adds in a force field and it works! I even made sure that they are in the same collection and tweaked ...
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285 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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53 views

How to make a mesh move due to its own force field interacting with a movable or an immovable one?

With World Gravity turned OFF. Two spheres in the scene, both having their own force fields (set to charge), same magnitude, opposite signs, in order to attract and presumably meet/collide at the ...
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44 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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Softbody: disable forces

Is it possible to create a softbody, that reacts only to collisions, but not to any other forces like gravity, etc. I reduced already all Field Weights to zero, but without effect. For Information. ...
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36 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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60 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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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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field force setting under particle settings

Although I can set up "wind", "vortex", etc. in "field force settings" under an emitter's "particle settings", I don't seem to be able to rotate the directions of the field force settings. The "wind" ...
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27 views

Force effecters with ocean modifier

I have an ocean scene I just started, and I want there to be wind in the scene. Here is a picture: The only problem is that I can't get the wind effector to interact with the ocean. Is there any good ...
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2answers
49 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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42 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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Constrain effect of force field to a collection for Rigid Bodies

Back in 2.79b the influence of a force field was constrained to it's layer. That allowed effects like in this .blend created in 2.79b. Two objects with rigid body enabled and two force fields. When ...
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47 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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26 views

Blender force field not obeying distance constraint

I'm looking to animate a series of objects confined to a sphere. The objects should all move in a clockwise direction, imagine fish swimming in a spherical fish bowl. I'm trying to achieve this ...
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33 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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35 views

Why would particles swirl in wind during design but not during rendering?

In a 14 second long animation, I have a particle system emitting objects from a logo, and a plane with force field physics as a wind source, moving during the animation so the particles swirl in ...
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1answer
448 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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How to do random rigid body motion with location constraints?

I want three objects (say 3 UV spheres) to move randomly in a plane. Saw some solution using force fields - force, turbulence, and vortex. But can't exactly figure out how.
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58 views

How to animate character with Curve Force Field Effector on Hair Particles

I have a character that uses a bezier curve to shape the hair particles via Curve Force Field. I got the idea from this short tutorial: https://youtu.be/vu6MQC6qdRY Now I am trying to animate my ...
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134 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 ...