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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Particle Emitters moving with Turbulence field with Eevee, but not with Cycles

Using Blender 3.1 on Ubuntu 20.04. I have a scene that has drifting dust in a light beam using volume. I use a turbulence field to move the particles. I do bake the dynamics of the particles. ...
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Make particles stick to emitter, then separate

I would like to animate the removal of dust from an object. Is it possible to make "dust" particles stick to the emitter object untill a certain time, then seperate them from the emitter all ...
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Gscatter addon: is there a way to simulate wind?

I am using gscatter for grass weeds and other plants. With grasswald there was an option to animate wind. I cannot find anything like that with gscatter. Or is there a way to simulate the gscatter ...
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applyImpulse(point,impulse,true). How to find value of force in Newtons or any other metric units when using this function?

In the applyImpulse() function we can give the impulse value as a real number in corresponding direction. How do I find the value of force applied on the object ...
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Can this Houdini effect be done in Blender?

https://www.youtube.com/watch?v=RG-Ybbn0J_c Can we make the particles flow across the surface of a sphere like this? Maybe using forces? I tried using a negative force field to attract the particles ...
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Hair particles with a force field stops at frame 100

I have a simple hair particle system with a wind force field applied. As can be seen in this screen recording, the force field stops after frame 100: https://youtu.be/fwV7PhLLGm8 This is the file for ...
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Apply force/impulse to objects

I am trying to apply a force to certain objects via a self-made script. Though I cannot find any option to do so in Blender. I could only find something equivalent in Blenders Game Engine: ...
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How do you reverse physics simulations? [duplicate]

I have a bunch of rigid-body objects that get moved by a force field. I want to reverse the physics simulation so that it plays backwards while other animations, like the camera movement and animated ...
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How to control the rotation of particles following a curve guide

I want to achieve a line of ants walking on a curved surface. I decided to use a particles system set to emitter, with a curve guide to force them along a path. I set the initial rotation of the ...
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How to make a realistic magnetic effect with force and rigid body

I made a force field with -100000 strength and a small cube with rigid body for magnetic effect. The cube passes the center of force field and rotates the center. I want the cube to move to the ...
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How to make "Turbulence" work properly on particle system?

I'm trying to make an animated grass field. I have set the particle system and I want to simulate some wind in the scene, but when I move the Turbulence the particles just start spinning around theyr ...
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Changing shape/size of force fields

I rather try to explain what I want to achieve. The cubes (later smaller objects) on the conveyor belt are supposed to be affected by the nozzles at the end and be separated depending on their weight ...
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How to make Juddery Simulation of Falling Leaves smooth?

I am using a particle system and a force field to simulate falling leaves. The leaves are falling from the sky and are supposed to stay on the ground. I encounter two problems here: The falling ...
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Deactivate collision between certain Rigidbody objects?

I have a model consisting of many seperate objects that are all overlapping with each other and I want to use Force Fields to "destroy" the model. How can I stop collisions between the ...
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Assign Field on a Particle System Slot

I wanted to know if there was a way to assign a Field to a Particle System Slot, I have 3 different Fields and I would like some to act individually on 3 different Particle Slots on the same emitter
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Why do particles rotate when raised above ground using curve guide?

Why do these particles rotate when they are raised above ground using curve guide force field? I have made a particle emitter which has dynamic enabled on rotation and those cubes above started to ...
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Are there any individual settings that should be checked after shrinking the model with the S key?

After scaling the models down to a tenth of the size I was working before, the animation preview would not play. (I down the size by S key.) When I tried to play it back, it would freeze at frame 1, ...
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Is it possible to make so the wind starts from some particular plane and doesn't affect anything behind that plane?

I have a single image of a coat that I am trying to animate. Wind and cloth effects are what I need but the problem is I want to set 4 different sources of wind for different directions and make it so ...
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How can I give wind and turbulence effects only to the inside of the cube object?

There is the cube-A, which is covered with a cloth, and another cube-B is placed on the top of it. I want the paper object to fly by wind and turbulence only inside cube-B without any effect on the ...
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Force Field in blender 3.0

I would like to add a Force field. In blender 2.93 I could do it just like that: ...
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Simulating blocks jumping out of a box with Rigid Bodies

I need to recreate small blocks jumping out of a box and falling onto the ground. I have at least 30 blocks. Therefore, I thought of avoiding manual keyframing and using Rigid Body sims. The first ...
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Force field in Particle System vs in Physics Properties

I'm new to force fields and blender and I don't understand the difference in using force field from the particle system directly or by adding them as an "object" or even as enabling them ...
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Forces from Force-Field Settings inside of Particle System do not work past Frame 100 [closed]

I am having trouble with force-fields (in the particle system itself) in that the function entirely as expected until frame 100, where they stop all force entirely and the particles go Limp. I have a ...
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Magnetic Effect [duplicate]

Hello People I am wondering if it is possible to create this effect in blender where the objects have like a magnetic effect on each other and the appearance of further objects effects the whole ...
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How can I prevent colliding Cloth Objects from wrinkling each other?

I am trying to create a model of paper being blown by wind using a model with a Cloth Modifier and a Force Field of wind. However, when I play them in animation, the Cloth objects that collide with ...
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The problem of simple cloth objects penetrating each other

There are multiple cloth objects which are raised by two different force fields. Both cloth objects are physics-based, and the object collision of those cloth is 0.02m. I have a problem with them ...
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Getting rigidbodies to react to force-fields

I am new to Blender, and am trying to make a physics sandbox. My approach is to use rigidbodies that are attracted by force fields to form materials and structures. My original approach to achieving ...
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Can I make custom force field that only rotates particles around an object?

Hi I want to make particles only rotate around an object. And I also want them to follow a simple equation $$ F \propto {1 \over r^2} $$ where $r$ is the distance of each particle from the object. Is ...
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how to make particles not to be effected by any kind of force field

I need a way to make a specified mesh or particles of a mesh not to be effected by any kind of force fields. But i need the particles to be effected by velocity at the same time any kind of help would ...
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3 votes
1 answer
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How can I recreate this emitting/rigid body/force field animation?

I was wondering is it possible to make this kind of animation with this effect? As I understand, its the particle system emitter + force field and rigid body? but whenever I give the mesh a rigid ...
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Hair particle orientation flips when responding to wind

I am trying to set up a scene with grass modelled as a hair particle system which responds to a wind field. The grass moves in the wind just fine, but as the strength of the wind changes from positive ...
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Need to achieve specific particles behavior that will embrace the object

I am trying to force hair particles to clump in groups, then embrace the object from different sides, and when the object ends the tips should become curly (or turbulent). I tried a lot of force ...
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Cloth simulator not reacting properly

Tried using cloth sim to make a flag, seen on tutorials that right after applying cloth sim, pinning vertices and hit play, the flag should fall down because there's no wind blowing into it. But for ...
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How can I export a video of a wind-blown object shot by a moving camera? (2) [duplicate]

How can I export a video of a wind-blown object shot by a moving camera? The objects I prepared is several papers looking objects. They are inside the square wire frame and constantly blown by a wind ...
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How can I export a video of a wind-blown object shot by a moving camera?

How can I export a video of a wind-blown object shot by a moving camera? The objects I prepared is several papers looking objects. They are inside the square wire frame and constantly blown by a wind ...
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how to make sure that the forcefield does not affect particle system

I'm working on a project which uses forcefield for soft body, but it is also effecting my particle system. how do i make sure it does not impact the particle system.
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Force field not affecting falling rigid body in motion

I am trying to use a force field to affect a falling rigid body mesh. The mesh is falling in a direct line on the Z axis and yet when it passes through the force field, it proceeds unaffected, no ...
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Keyframe on force strength not working past frame 100 [duplicate]

I am making an animation and I need to explode an object so I did a cell fracture then gave the pieces a rigid body as active and it seems to work ok. I then added a force field force. I want the ...
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Make Wind Force Field Only Effect 1 Object's Emitted Particles [duplicate]

I want each wind force field to only effect the particles emitted by the closest 1 of the 2 planes. As the file is right now, each wind source effects both plane's emitted particles. I want the top ...
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8 votes
2 answers
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How can I make string tighten around a soft object

I've used blender for a couple months, my knowledge is limited to basic modelling. I'm trying to get the effect of string being tied around a soft object. Like this string around my finger. Not sure ...
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What is physics field absorption with a collision object for particles?

I have read this information https://docs.blender.org/manual/en/2.90/physics/collision.html#bpy-types-collisionsettings Does anyone have a better explanation in a few paragraphs? The question arises ...
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How to properly set up multiple forcefields effecting eachother?

Dear Blender Community, I want to create an animation were magnetic objects interact. Therefore I set up a scene where objects are pulled to a central forcefield. Additionally I want every object in ...
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Best way to animate a moving canon(shot)?

Im animating a shipbattle and want to animate the canonshots inbetween. The project is unfortunatly above 150mb at this point. I have a canon model, seperated into a stand, the canonbarrel and a ...
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Affect curves with wind force field?

I have grass that Ive made individually from tapered curves here, and I want apply a gentle breeze to them. I dont see a way to apply force fields to curves though - you can make the curve itself emit ...
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Aligning Particles in a direction

I want to arrange ellipsoid-shaped particles shown in the picture filled inside a sphere. In the same way aligned from one pole to other (bipolar) How can we do this using particle system ? How to ...
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How to get fluid to behave like droplets on a hydrophobic surface

I am trying to create an animation of the scene shown in the picture below. I want all the little fluid droplets to be attracted to the big one in the middle and be absorbed by it. I have tried using ...
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How do I make rigid bodies use a curve guide force?

It seems some force types do not effect rigid bodies, does anyone know which forces can actually be used on rigid bodies? In this case I'm trying to get 'debris' to get 'sucked up' by, and carried ...
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Rotation of objects using wind force

I'm using the wind force to blow some floating objects in the wind. I have the Affect -> Rotation checked, but the objects don't rotate. What am I missing?
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Floating rigid bodies not affected by wind (2.92)

I'm trying to make some floating rigid objects blow away in the wind. I have applied a rigid body to all of the objects separately, and have a wind force field pointed at them. When I hit play, the ...
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Particles: control conservation of momentum / inertia?

In Maya there's an attribute to reduce the inertia of particles, it's called Conserve. If Conserve is 1, the particles obey Newtonian mechanics. If Conserve is zero, none of the momentum from the ...
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