Questions tagged [rigidbody]

The rigid body simulation can be used to simulate the motion of solid objects. It affects the position and orientation of objects and does not deform them. Use this tag for questions relating to the the rigid body physics simulation in Blender.

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How to get the rig a car control icons back in pose mode to use? [closed]

I couldn't see or use the icons or the arrows that help to turn or rotate the car parts after the car is rigged. Am I forgetting to select something? How do I get the icons of the rig a car to rotate ...
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Removing floor and make objects fall animation

I have coins falling into a cube. After a few seconds of them landing I want the 'floor' to move and coins to then fall through down. I have the floor plane set to animate out of the way but the coins ...
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How do I make my conveyor belt object carry an object straight and then slightly shift up at an angle and back to straight?

Blender Version 3.2.0 (3.2.0 2022-06-08) I have created a conveyor belt for a piece of complex machinery that I am animating. I am using this tutorial as my base concept. It is partially working as my ...
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Activate rigid body by distance (3.0)

I have a model that I cell fractured and I would like the cells to fall down one after another from top to bottom, like a kind of wipe. Is there a way to activate the rigid body simulation of these ...
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Rigid bodies not working correctly

so im trying to make a dangling chain with rigid body physics in blender. Heres the problem: I added a rigid body to the first chain as a constraint so it will be able to dangle. As you can see I ...
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make a object animated for part of animation, and rigid body for another part of it

i'm trying to make an animation, in which a robot arm picks up a box and drops it away. i've animated the box until the point of dropping, but i do not know how to make it turn into a rigid body ...
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Rigid Body stopped working

I don't know when, the Rigid Body just doesn't work in this project, only for the first 3 frames. Nothing helps. Link to file: https://mega.nz/file/XHIgkB5K#_6b7vCFP8ilvlWQpefa6wscMyZPNSDvN4CJQcxrCkdM
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Realistic Friction Rigid Bodies

I am trying to do a "satisfying" video with physics and don't really know much about them. My problem is I can't figure out the right settings to make it look realistic. Perhaps it is ...
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How to make a rigidbody on a curved plane? [closed]

I used THIS video to create a curved plane and then made a UV sphere. My plane is curved smoothly. However, when I try to give it a rigidbody and let the sphere slide on it, it acts as though the ...
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Using force field to rotate objects/particles?

I am trying to use some force field to affect rotation of a rigid body object or at least particles and fail miserably. Rotation checked, Location unchecked in field settings, tried cranking up ...
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Missing layer/object when exporting

i've only been using blender for a few days. However i've been stuck trying to export a project however one of the object in there doesn't export. the only Difference with the object is that it has a '...
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Body rigid. Objects explode

I'm trying to understand how the Rigid Body works in Physics Properties. The flying volumes in green should move and drop the red volumes which should fall to the ground naturally. Mine explode! ...
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Physics simulation without the objects falling down

I am trying to apply rigid body physics to objects but do not want them to fall down when the animation is playing. They should stay in their positions but react to other rigid bodies. Please refer to ...
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How do I freeze a rigid body in its position?

So, I dropped a suzanne using rigid body physics, I want to freeze it in the pose it landed in and remove the rigid body physics. How would I do this?
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How do I improve the physics on this rigid body cardboard box animation?

I have a box. I want to make it behave like it is made out of thick cardboard. I have an object that I want to rise out of the box, and for the physics to look realistic. This is how it looks now: ...
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Problems with making a domino effect

I tried to make the typical domino effect in Blender. The first time it even worked, the 2nd time it didn't. I added the Array and Curve modifier to the domino and set the curve for both modifiers, ...
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Dynamic spring system problem

I am trying to make a dynamic spring animation in blender. First, I followed this tutorial to create a simple spring model. https://www.youtube.com/watch?v=P50aMnJKvR0 Then I built the dynamic spring ...
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Using Rigid Body to push something out of a flapped box

I have a flapped box, and I want to lift an object out of it, forcing the flaps to open as it pushes against them. Here's my sphere failing to open the flaps: I have seen an answer here, but building ...
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Baking rigid body physics - Blender 3.0

This is probably a basic question but I can't find an answer that is relevant to Blender 3.0 I baked an animation with rigid body physics and particle physics for 300 frames. I now want to extend the ...
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Rigid Body objects exploding without colision

I'm curently working on exploding part of a statue with fracture and rigid body objects. The shot I'm on is a close shot of the shoulder of the statue and I'm trying to explode some kind of "...
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Rigid body's collision stays in place

Rigid body's collision stays in place even though the rigid body is moving. Because of this, the fabric catches on the void and rigid body passes through the fabric.
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Wrong collisions(bouncing) in rigid body physics with 3 objects

I want a beam being in stable position then move cylinder to another side of pit in beam so higher end of beam goes to floor then do the same but in opposite direction and repeat it multiple times. ...
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Can Rigid Body Dynamics Conserve energy or momentum?

I'm trying to create a rigid body simulation that is physically accurate (meaning that energy and momentum are conserved in the system). I want to drop a sphere off of a larger sphere, and I've ...
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Wrong assignment of matrix_world

I try to transform the camera by changing its "matrix_world", however, as shown in the figure, when I assign a matrix to it, the rotation part is transposed and the translation part is ...
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Rigid Body Physics break when closing and reopening the project

Since I added multiple scenes (they are full copys of one original), every time I quit Blender the physics in all scenes but my original one stop working. It behaves as if they just hadn't any physics ...
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Can I rig a model and have the bones not be connected?

This is my first time creating a model like this, would rigging the model with the bones like this even work? Also if it did, how could I mirror the left foot to the right foot so its exact? ...
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Cloth physics not updating the passive rigid body component

Steps I took: Added a plane mesh and changed: Subdivided 20 times Added cloth simulation and pinned the edges, changed properties: Quality Steps: 20 Collisions > Quality: 5 Added Rigid Body, ...
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Why do simulations just break sometimes?

I thought I was doing something wrong and breaking them, but here's how it goes. I bake a rigidbody simulation. I add a bit to the scene to make it look better. I delete the bake and bake again, and ...
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collisions vs rigid body

I'm a noob, sry if I use poor lingo. I made a sphere using a particle system and it instances a little sphere building block. I then filled the sphere with my little blobs that I want to bounce around ...
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why is my rigid body (buildings) moving so randomly? [closed]

As you can see from the gif, the buildings when they break, instead of crumbling they seem to flail around. Does anyone know how to fix this?
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1 vote
1 answer
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Rigid body simulation explodes instead of collapsing

I want a part of a dinosaur to collapse so that the bones fall to the ground and bounce a few times. I have enabled a rigid body simulation for each bone. The problem is that the bones seem to bounce ...
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Rigid body flying into air rather than dropping down

Whenever I add rigid body to a fragment of a Pawn chess piece that has been Cell Fractured, the piece doesn't drop straight down but instead flies around. However when I copy the Pawn piece into a ...
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rigid body animation start at keyframe

i have tried everything possible, but either the Physik animation doesn't start at all, or it happens spontaneously from the start frame to the end frame. i tried with to play with gravity and Rigid ...
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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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Blender rigid body with curved concave shapes?

I am trying to create "curved train rails" for game Space Engineers using Blender (havoc) and meet on issue when using Rigib body, the final stages seems not allowing any "concave" ...
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2 votes
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Rigging up a machine with moving objects and constraints? Would rigid body sim work for this? [duplicate]

I am trying to reproduce this in blender. I have the 3D models for the all the parts. I even tried using rigid body sims to try to achieve the desired end goal with some partial success. The animation ...
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Duplicate Collection doesn't add to RigidBodyWorld Collection

If I apply Rigid Body physics to objects in a collection, and then duplicate the collection: The objects in that collection have the RB operator, but are not added to the RB World, even if I then ...
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Flickering on bottom face of transmission-enabled cubes

I'm making a rigidbody simulation with lots of cubes with transmission materials. Using Blender 3.0.0 and Cycles. The problem is that the bottom face of each cube is flickering, even when they are at ...
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2 votes
1 answer
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Project Organization

Greetings dear 3D artists! I have a group of objects (3-4 pieces) in one file. These objects are animated using Rigid Body physics. I am moving these objects into a common file of a large project. The ...
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3 votes
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Marble Run - Rigidbody jumping around

I tried to create a simple marble run using tracks build from bezier curves. But something doesen't seem to work correctly, my marble always jumps around as it hit's the tracks. https://drive.google....
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Problem with Rigid Body Objects

I've been trying to reproduce the treadmill (from this video at 1:45: https://www.youtube.com/watch?v=iLRsCtd5P9s) and I've been going through a lot of problems with the physics and the rigid body ...
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What are the bpy context requirements for rigidbody.bake_to_keyframes?

I am creating an exporter that includes a rigidbody simulation, so I need to bake the rigidbody simulation to an animation before exporting the whole file. If I open Blender manually, then open my ...
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How can I apply rigid body to multi-part object using array modifier?

I made apple. It has two parts, stem and body. I used array modifier to make copies of the apple (because rigid body doesn't works with array modifier). Then, converted it to mesh and tried to "...
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1 vote
1 answer
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Blender - Rigid body - Mesh - Not rotating/tumble after collision

As you can see in the video I want the slug object to tumble just like the cube does on the left. Both object have the exact same properties regarding ridig body, which is shape:mesh and the rest ...
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1 vote
1 answer
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Hair particles going through mesh

I'm trying to make a little hairy creature walk around with googly eyes. But I have an issue with my hair particles going through the eyes. The eyes are made out of an animated rigid body "case&...
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Rigid body simulation (separate by group of start time falling)

I'm doing animation via rigid body simulation (falling objects) So I need one group of objects to start falling at frame 0, the second at 100, and another one at 200. It's need to separate objects of ...
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1 vote
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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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I need help adding a chain with physics to an animated/rigged model

I had a 3d model that is animated, however, I now want to add some hanging chains with physics to the animation. I had the chain with rigid body, however, I cannot seem to attach it to the belt and ...
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How to make Looped rigid body physics?

I have A Chain animation. It connects to bone which hac Rigid Bidy constraints. Animation lasts 100 frames - but i want make it looped. Cause of physics Bones dont get to their first position,they are ...
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2 votes
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Rigid body pile of objects not settling

I'm trying to apply the ideas of these two tutorials to a different (non-donut) object. I want to drop the 100 or so objects onto the ground to form an irregular pile of the objects. My object is a ...
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