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Questions tagged [rigid-body-simulation]

Questions pertaining to Blender's built-in rigid body physics simulator and rigid body simulations in the Blender game engine. Rigid body physics are used to accurately calculate dynamic motion of non-deforming objects.

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Rigid body start deactivated issue [closed]

I'm working on a personal project where i have a low poly vehicle animated and which has active rigid body on it along a path, I have some crates modelled with start de activated active rigid body on ...
PeeJayy's user avatar
0 votes
0 answers
8 views

How to combine blender animations for a single in Unity

Hey what's your approach for carrying over animations from blender to unity? We're trying to simulate a box falling with multiple rigid body objects inside it. How should we approach this and how do ...
ajstevenyanja's user avatar
1 vote
0 answers
16 views

Fix Particles not intersect with each other Non overlapping

I have to create a scene with some particles, but I encounter difficulties... The particles are intersecting each other. I have attached here the .blend file: https://drive.google.com/file/d/...
diniulian's user avatar
  • 930
0 votes
1 answer
15 views

Blender camera shaking issue in cycles only

so i'm currently working on a short personal project on blender 4.1 and i got issue with the camera, keep in mind that this issue is only happening in cycles and cycles only, So in my project i got a ...
PeeJayy's user avatar
-1 votes
0 answers
27 views

Lifting a bulk weight with crane hook

I would like to know the physics, Dynamics of slings and links connected to crane hook. I can attach all as single object and move with pivot. But it looks like all fixed and no motion. So I'm trying ...
Blenderfirst's user avatar
1 vote
1 answer
26 views

My Cell Fracture fragments freak out when I apply Rigid Body

I'm trying to follow a youtube blender tutorial for a head explosion that was made in blender 2.9 I believe (i'm working in 4.0). When I cell fracture the front part of my skull model all is fine, ...
George's user avatar
  • 11
0 votes
0 answers
20 views

What's the easiest way to contract and expand folded patterns? [duplicate]

I'm trying to create a folding paper thing like shown in this video https://bramfritz.nl/wp-content/uploads/2024/05/paravent_base_grid_1-1.mp4 It goes from being somewhat flat, to scrunched up into a ...
John Smith's user avatar
-1 votes
0 answers
18 views

Having problems with one particular object with rigid bodies

I wanted some Cell fracture destruction but the rigid system simply doesnt work. Any object in that project doesnt do anything when chosen as rigid. No falling, no ...
Audio_Video_Enthusiast's user avatar
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20 views

Break stuff *without* cellfracture

I'm making a scene where a bullet is shot at a glass object fracturing it completely. cell fracture is great and usually works but it has 2 major flaws. the first is that it sometimes misses fragments ...
Jo xXx's user avatar
  • 420
1 vote
0 answers
19 views

Rigid Body Simulation rotation is not affected by forces

Rigid body simulation's rotation are not affected by forces. For example a skinny cylinder with wind blowing on it and animation the wind randomly will only move the cylinder and it will always be ...
Paul Fraser's user avatar
0 votes
1 answer
28 views

Where can I find the algorithm that Blender uses for dynamic elements (physics)?

I need algorithms like DEM, IBD, MSS, SPH. I know these are used, but where can I find more about them? My thesis is about comparing these elements in Blender and Houdini, but I need a site where I ...
Dávid Czvedler's user avatar
4 votes
2 answers
346 views

How to animate a solid block cracking

Looked around online for a bit and could not find an answer - most resources are about making a cell fracture + rigid body explosion. But I don't want an explosion/destruction animation. I just want ...
HullBreaker's user avatar
0 votes
0 answers
18 views

Lock Axis on Force Fields

my goal is that the cursors follow the button and always point to the button with the index finger. The button should move with keyframes and be a rigid body just like the fingers so that it collides. ...
adrian.blender's user avatar
3 votes
1 answer
99 views

Objects are falling outside instead of inside when using rigid body

I have a text converted into a mesh. I want a bunch of cones to fall into the hole in the text. When I use rigid body, all the cones end up outside the text instead of inside. How can I get them to ...
N03's user avatar
  • 383
0 votes
1 answer
32 views

Relationship between rigid body constraint stability and rigid body weight

I am simulating a rope in Blender, represented by a chain of rigid bodies. Each rigid body is linked to its neighbor using a generic constraint that locks X, Y, and Z linear movements. The topmost ...
murri's user avatar
  • 1
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0 answers
30 views

Rigid body simulation keeps wiggling

I've got a large mess of a few hundred identical parts (torus), all intertwined, all using "Shape=mesh". When I drop it on a floor, it lands ok - but then it continues to thrash around and ...
Benjamin H's user avatar
1 vote
1 answer
27 views

Force pulling specific objects together

I'm new to blender, sorry if it is's a trivial question: I have 3 cubes, A, B, C. I want to set a spring to pull together A and B, and a string that pulls together B and C. I tried to add rigid body ...
negedng's user avatar
  • 11
2 votes
1 answer
184 views

Why is my liquid simulation not showing?

I have applied the fluid in physics property but the liquid doesn't seem to be showing. Did I overlook something or is there something wrong with my model?
Codeblues6's user avatar
0 votes
0 answers
12 views

Issues when applying simulation add-ons to downloaded model

When I applied the Fracture feature of an add-on called KABOOM to the downloaded model, I got the following results I got some weird new fragments like in the image. How do I fix it? Then I applied a ...
seong's user avatar
  • 3
0 votes
1 answer
62 views

The chain is breaking apart

I've designed a chain using Rhino 3D and would like to attach it to a mannequin. I've imported the mannequin and chain into Blender. I would like to activate gravity and have the necklace lay on the ...
Macit's user avatar
  • 135
2 votes
1 answer
36 views

How can I make the gravity of a rigid body work after deactivating the animation, after applying a bake to it?

I'm making a ball enter a soccer goal and collide with its net and then it falls by inertia and it´s gravity. I have already done the part where the ball enters the goal and hits the net, by 'bake' ...
LightPure's user avatar
0 votes
1 answer
15 views

How can I make an object with rigid body physics not return to the first keyframe when I try to animate it?

Does anyone know how I can make an object with rigid body physics not return to its point of origin keyframe when I want to disable its animation? What happens is that I'm trying to animate a ball ...
LightPure's user avatar
2 votes
1 answer
24 views

Problem with Rigid body and Child Of constraint

thank you for your time, I've been following this tutorial: How To Make Any Rig Into a Rag Doll in Blender, but I have a problem, I'm using the Child of constraint on my bones to parent them to the ...
Pierre Bolteau's user avatar
0 votes
1 answer
14 views

Keep last keyframes and delete the others

I have a script that run a rigid body simulation and I want to keep only the last keyframes and delete the previous ones. Is there a way to do this? Thank you for the availability.
Valerio Gianforte's user avatar
5 votes
1 answer
192 views

Rigidy body for an animated mesh with curve

I would like that these rigid body spheres to interact with this mesh animated object, how is it possible?
diniulian's user avatar
  • 930
0 votes
1 answer
15 views

How to bake rigidbody simulation from commandline?

How to bake rigidbody simulation from commandline? I want to run simulation from cloud services, which are head-less. So I want to run from command-line. I searched around for a while, and tried ...
Hugh Perkins's user avatar
3 votes
1 answer
165 views

Is there a way to easily add all Rigid Body objects and Constraints in a scene to the Rigid Body World?

Using Blender 4.0. Upon duplicating my collection, the operation seems to work, but the duplicated rigidbodies are not automatically added to the Rigid Body World, which is the basic behavior whenever ...
Paddlefruit's user avatar
1 vote
1 answer
54 views

rigid body issue

I'm using rigid body into those chains and ball. The angle of ball falling is so weird even thhough I put a lot more heavy mass than chains , and the animation is so slow from some reason than ...
Henry's user avatar
  • 11
0 votes
0 answers
34 views

Baking rigid body simulation with python script

I am working on a script to generate scenes and render them. Since I want my objects to fall on a plane before rendering, what I want to do is bake the rigid body simulation, go to the last frame and ...
xWourFo's user avatar
  • 65
0 votes
0 answers
23 views

Physics simulations (upward collision)

I would like to carry out a physics simulation in my project: context, I have a cooler (ice cream freezer) and inside it is full of ice cubes, the issue is that I want ice cream to come out of the ...
Sebastian Bustos's user avatar
0 votes
0 answers
18 views

How to create a turbulent fluid particle simulation that is reactive to regid body simulations?

Reference Video I am not able to understand what kinda approach would be more accurate to recreate the reference video above [particle system or fluid simulation]. From what i understand a particle ...
Tejas's user avatar
  • 945
0 votes
0 answers
31 views

Why do physics objects freak out when I rescale them?

I was working on my blend project with no regard for scaling until I realized that the physics was incredibly slow due to the actual size of the objects I was working with being giant. So I thought to ...
DED's user avatar
  • 249
0 votes
0 answers
28 views

How to create accurate RBD simulations that are perfectly synced to sound and collide with each sound beats?

Hey Blender Community!, I recently stumbled upon this youtube short by this famous artist using rigid body sims to create this amazing animation with the sim reacting with music notes. I was wondering ...
Atharva Deodhar's user avatar
1 vote
1 answer
40 views

Rigid body Cell Fractured Wall fails to react to a motion capture character

I have a "Standard Walk" motion capture file from Mixamo.com. I want the character to walk into a cell fractured wall and activate the rigid body wall when it collides. However, my ...
Thomas Cheng's user avatar
0 votes
0 answers
48 views

Move constrained rigid bodies with empty parent

Been stuck on this for a while now, feeling like i'm chasing something that can't happen. I read in some posts around that to get a constrained rigid body to move that all one has to do is select it, ...
Chip Bonk's user avatar
1 vote
1 answer
20 views

Can I bake a single rigid body and repeat it?

I am attempting to make a production line of boxes proceeding down a roller conveyor. Because the action is so repetitive, I would like to bake one instance of the physics, and translate the other ...
James Riley's user avatar
1 vote
1 answer
39 views

Rigid Body and Soft Body animation

I would like to create an animation like this: https://www.instagram.com/p/C1xkNMuvFmh/ I'm not being able to create this jiggly effect and also to interact rigid bodies with soft bodies/cloth. Can ...
Haru Shiba's user avatar
0 votes
1 answer
69 views

Rigid Body animation: How to apply springy / dampen effect

I'm trying to create a Wheel of Fortune animation, see the image below. I also have a movie that makes the issue a lot more clear: Wheel of Fortune movie I've got it somewhat working using the Rigid ...
7th Sin's user avatar
0 votes
1 answer
75 views

Can you do this level of simulation in Blender?

I've been trying to do some simulations on blender like this: https://www.instagram.com/p/CvxTvogNuGI/ Does anyone knows if it's possible on Blender or only on C4D? Thank you,
Haru Shiba's user avatar
0 votes
0 answers
19 views

Blender rigid bodies getting stuck in each other

I am trying to make a pinball simulation with blender and have been constantly having an issue where the pinball (a ragdoll) keeps on getting stuck inside the obstacles: The simulation works by ...
Mtamred's user avatar
  • 21
3 votes
1 answer
61 views

Blender Rigid Bodies stop simulating at a random frame

Please see attached project file. The sim starts at around frame 200, but freezes completely at 726, just after the bowl drops. The entire animation is 900 frames, and the Rigid Body Simulation range ...
sakeferret's user avatar
1 vote
1 answer
20 views

why is my active rigid body object not stopping after falling?

I have a model of a coin that I want to fall on the ground. The issue is that once it hits the ground its not stopping and sometimes falls below the ground. all rotation and scale transform has been ...
Harsh's user avatar
  • 11
0 votes
1 answer
52 views

Mechanical Linkage Animation of CAD Assembly

Blender community, I hope you are all well. I am fairly new to Blender and have been experimenting with animation through imported assemblies I have created in Autodesk Inventor. It has been ...
jamessgray's user avatar
0 votes
1 answer
26 views

Rigid Body does not Behave as Expected

I am trying to create a trapeze. I am using cloth simulation for the ropes and for the handle I am trying to use a combination of an armature to drive a swinging motion and rigid body physics for free ...
DrIgnatiusCole's user avatar
0 votes
1 answer
942 views

object has no attribute pose bone

hey all so I m Trying to actually rig a car with the addon rig a car, I watched many videos on youtube and I FIGURED it out , after I parent the wheels , named them etc , When I try to generate it ...
Games nr's user avatar
  • 405
3 votes
1 answer
140 views

Rigid Body - Constant Speed

I'm trying to render an animation with motion blur, and I want the motion blur to start since frame 0. To achieve this, I need the Rigid Body to start simulating before frame 0. How can I achieve this?...
Haru Shiba's user avatar
1 vote
1 answer
58 views

Floating Objects

I want to do an animation where a door opens and objects float. How can I do it? Reference: https://www.instagram.com/reel/Cn4rLCvKs-X/?igshid=MzRlODBiNWFlZA%3D%3D Thank you.
Haru Shiba's user avatar
1 vote
1 answer
61 views

How to have multiple objects work as one object with rigid body physics

I have 6 objects that I want to behave as one with rigid body simulation
INeedHelpWithThisProblemIHave's user avatar
1 vote
1 answer
21 views

Can I fill a vessel with rigid bodies, animated?

I need to fill a tub with paper packaging. I don't care which method, whether it's simulation nodes, geo nodes, particles... Everything is there in the blend file. Blend file here 0
James Riley's user avatar
3 votes
2 answers
362 views

Can you bake multiple rigid body simulations in a single file?

I've looked at various similar questions but ... a) don't quite understand and b) they were for older versions of blender. I'm now on Blender 3.5 I am doing a Rube Golberg machine. First part is a ...
BuddingBlenderer's user avatar

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