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Questions tagged [force-fields]

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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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17 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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12 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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181 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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8 views

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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14 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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35 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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20 views

Problem with Force field trying to make a pillow

I am having a small problem in creating a pillow, I followed about 4 to 5 videos and surprisingly nothing works. https://imgur.com/vPFWfwv I did get how to make it, but even tho I followed the same ...
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24 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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16 views

“Push” Smoke Vortex System Instead of “Pull”

How I might go about making a smoke system be pushed away from the origin as its source moves instead of being pulled in like the normal vortex force field would have it do? I’ve tried using the ...
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2answers
72 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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89 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
90 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
30 views

World not appearing in final render

I rendered out my final animation and the world is not showing. I also have two force fields being used and a plane which is acting as a particle emitter and all of these things are appearing in my ...
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38 views

How to make a fire beam that expands

I am making a fire simulation, but I wanted to make the fire expand somewhat uniformly within a certain angle like a beam. Maybe the way to do this would be with obstacles? But I don't want to lose ...
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1answer
88 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
352 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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86 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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114 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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33 views

blender smoke - high resolution behavior differences

I have created a complex smoke sim with many force fields, trying to achieve a certain behavior. With the main point being a tunnel being punched through it as it progresses. I can get great looking ...
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1answer
33 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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74 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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54 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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21 views

Boids do not obey forces - What settings do I need to turbulate?

Huge force field (turbulize with -500 in force to disperse boids) Doesn´t do crap. I´m using 2.79. Whenever I go to the particle settings and activate self forces blender crashes. How do I correctly ...
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65 views

Particles in curve guide flickering

i did an animation of cars driving on streets to simulate a traffic scene. I have two bezier curves representing the streets with curve guides on them. The curves are placed parallel, the directions ...
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1answer
49 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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380 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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692 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
145 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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120 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
239 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
200 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 ...
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1answer
173 views

Making 3 points stick on a plane / flag with wind

I have a flag I want to waft in the wind. I imported the shape as an SVG from Adobe Illustrator. I converted the mesh to a curve. It wouldn't let me make some subdivisons but it still seems to work ...
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33 views

Create smoke like affect using hair particles

I'm trying to see if this effect can be achieved the same effect from the film mama(2013) the same way her hair moves in the film I tried experimenting with force field but I'm not really seeing the ...
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1answer
26 views

Scatter Particles after the have been created

How do I move Particles in random directions (explosion) after they have been created? I trace letters with a particle system without any movement. Once I have particles all around my edges I want ...
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37 views

Text animation help

I have created a text with a metallic material and converted each letter to a mesh and applied rigid body physics. Now, I want to make an animation where a plane (or maybe a magnet) flies over the ...
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1answer
398 views

Object particles fly up, move in the wrong direction

I'm new to Blender and I can't figure out why my particles move into the wrong direction. I made a plane with paper texture and cloth simulation, I use this object as the particle, my emitter is a ...
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138 views

Wind Force Field not working in my scene

I have tried everything in my scenes but the wind force field is not working can anyone help for my this file flag animation
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2answers
1k views

Pulling a net tight

I am trying to drape a net using the cloth physics, but then is there a good way to make it look like the four corners are pulled and "staked" in a certain place? My first thought was some kind of ...
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355 views

Wind force field won't affect cloth simulation

I am trying to use a wind force field to cause multiple cloth simulation objects to be blown away from their initial location, however when I play the simulation, the simulated cloth objects just fall ...
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1answer
691 views

How to have a force field affecting only one particle system hair

how can i set a force field to affect the particle system named "alpha" and have no effect to the one named "beta" ? I tried to bake using separated levels and i tried also using the field weights > ...
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1answer
88 views

Particle system issue - hair moves at the start of animation even without force fields

I have a sphere with a hair particle system. gravity ON, stiffness 2.500, cache start: -200 I tried to play my animation without force field enabled, the particle system is moving (for sure it could ...
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565 views

Water splash for advertisment

I modeled a shower gel and I'am quite satisfied with the result. I now want to make water splash around it similar to this picture I tried to "fake" it with particle systems but that didn't work ...
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1answer
109 views

Is there a way to control the axis that a force field applies force?

Is there a way to control the axis that a "Force Field" applies force? I'm specifically trying to constrict the force to the x & y axis not the z axis using the "Force Field" on a Cell Fractured ...
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131 views

Paper on wall pulling with wind

I want to create a scene with a piece of paper stuck on a wall fluttering in the wind for a while, before being torn off and blown away. I attempted this with a soft body subdivided plane and wind ...
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1answer
413 views

“Time remap” or slow speed of cloth particles driven by a force

I have a scene with a particle system, which emits a few planes, to which is assign a cloth simulation. A wind point force emitter drives the particles in a swirl. Cool. The overall action is ...
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2k views

How to get wind to affect hair particles with group or object render

I am using a group to get more variation in grass stalks as per this tutorial. Unfortunately that tutorial was for a still image so did not cover wind or other force fields. From various other ...
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82 views

Can I have 2 curve guides to make particles go 2 different ways?

So when I use curves as force fields Curve Guides, the particles tend to go only one way. Is there a way to make two separate curve guides, so the half of the particles will follow one path and ...
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1answer
384 views

smoke flow outwards from a source

I'm trying to make a realistic rendition of the head of this character using a smoke simulation. However I'm having a hard time getting the smoke to billow outwards from the face; it seems to only ...
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1answer
902 views

Wind force not affecting hair particles

I am making grass (field of wheat) and I added wind. My windmill is affected by the wind but wheat is not! How can I fix this? I am sharing my wind and particle system options. I want my all objects ...
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272 views

Force field destroys particle rotation

Newtonian type emitter is using explode modifier to manipulate faces. Problem is when I put Vortex field on the same layer as emitter, my particles stop rotating, even if field strength is set to zero....

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