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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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Is it possible to control the bounciness in Rigid Body?

I was trying to make 3 balls bounce at a time from same height with same weight and same bounciness. But when they collide with the passive surface they start to bounce unevenly like one goes very ...
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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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Is it possible to make forces act on the objects surfaces instead of the object center?

I want to create an explosion where I need to give the planks some radial velocity based on the point force. The planks are just moving away from the force based on the center point of the mesh. Is ...
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How do I make objects collide with text?

I'm a beginner in Blender, and I'm making an animation where an animated piece of text collides with balls in its path, causing them to roll. I was just wondering if there was some way to tackle this ...
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Mixamo character in Blender - changing the position of the body

I'm totally new to Blender. I managed to download and add two Mixamo animations in Blender to create smooth transition between them (yay!). I would like to change also a character a little bit - ...
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26 views

Rigid Body Doesn't Interact

I'm creating a simulation of the 9/11 tragedy. However, the rigid body for both building and the plane don't seem to work at all. Plus, the plane itself is rotating every time I add rigid body to it. ...
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Fluid Not Increasing Mass of Mesh Object (Bucket)

I've created a simple hinge scenario, where a bucket rests nicely on the edge of the board. The first 2 images below are just the rigid body options for this scenario. NOTE: I know I could use mesh ...
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1answer
47 views

Simulating an egg on a conveyor belt getting smashed

I have a short animation of an egg shape (solid w/o liquid) and the egg is on a conveyor belt (follows directional movement of belt via driver) then was supposed to have the egg get smashed by a large ...
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17 views

How to Animate Rigid Body Angular Motor Velocity?

I am using Blender 2.79 on Linux. I've been able to create a rigid body with two motors (angular) turning some gears (the motor velocities interact at a differential). This works as expected. The ...
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63 views

Adding Add-Ons to Blender 2.8 Manually

I want to fill a glass with water and smash it. Fracture ADD-On unavailable. Need Alternative or a way to add it in 2.8 I just started in 2.8 but looks like the fracture add-on is unavailable. Is ...
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1answer
43 views

How to link two different physics objects together?

I am trying to make a winter hat model which has cloth simulation on it. The model : This is not the final model but this should give you the dea Is there any way to make the fur parts heavier than ...
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48 views

Create a Hanging Bucket Effect (Handle Hooked on Rod)

I'm trying to create a hanging bucket effect, where the handle hooks on a rod and when the bucket falls, the handle stays hooked. I've tried almost every combination of Active, Passive and Active (...
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Rigid body: Animation blender

hello I wanted to ask if there is a way to animate an obyect while its in rigid body animations. because i want to make a rubiks cube that lies on the table and have the pieces of the cube moving but ...
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animation player not working

My animation player doesn't seem to be working. Both my fluid simulations and fire simulations fail to play. I shared the blend.file with someone else, on whose computer the simulation ran fine. I ...
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1answer
55 views

Why wind effect wont affect rigid body simulation in 2.8?

I have a simple setup. An active cube and a passive plane with rigid body physics activated. An empty with wind physics activated and the strengh set to 1000. When I play the animation, nothing ...
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25 views

Animate a face rig based on data from an external source

I would like to know if it's possible to use Blender to make a 3D animation of a person that simulates the spoken dynamic information working with the API of DialogFlow, for an intelligent robot? I ...
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1answer
40 views

Cell fracture and animating rigid bodies

Could anyone please explain to me how to achieve this something like this: I have a fractured sphere on top of a table and I want to animate it rolling of-of it and then exploding into pieces only ...
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Object not falling down but instead going another direction

I made a simple pinball machine and placed a pinball at the top. After applying rigid body physics to all objects, pinball is going in another direction instead of falling down. All other settings are ...
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Interactive Phsics Modelling

I would like to re-phrase and narrow a question about physics animation while modelling. This question below was aksed, and it's similar to the question I am asking. Is it possible to interactively ...
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Chain Links Snapping Apart

I'm trying to create a chain that is connected to a ball on one end and a board on the other end. The ball is used to pull the chain with (like something to grab onto instead of just holding the end ...
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1answer
64 views

Rigging this mechanical linkage in Blender

I am tackling this mechanical linkage which moves in the x axis (see image). I would like to do it using IK but the problem is that I can't establish a relationship between the blue and green parts ...
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1answer
26 views

Ridged body no physics

I have a static object that flys through the air that needed collision. So i changed it to a ridged body but it still has physics and wont fly anymore. Is there a way to have a ridged body with ...
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How do I get rigid body activation to propagate through a set of rigid bodies?

I have around 3K LEGO bricks tied together and I made them all rigid bodies (active RB). Is there a way to control the way they "activate" and start the simulation? For example, if those bricks are ...
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How to prevent components fall apart during simulation?

Here is my file. It contains a small robot with some constrained joints (head, front leg, rear leg) When I turn off gravity and start simulation (animation with rigid body world), the components of ...
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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
26 views

rigid body simulation - unwated spaces between objects

I've been trying to play with a rigid body simulations. I prepared a project of a building made of domino tails. I've placed all objects very tight, but as soon as I start animation it looks like ...
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Active Rigid Body alembic sequence from RealFlow to Blender does not work

I have a problem with making certain .abc sequence work in Blender. Imported Soft Body .abc sequence from RealFlow to Blender works just fine. Imported Active Rigid Body .abc sequence from ...
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How can I get or calculcate the acceleration of animated rigid bodies in an animation?

I'm trying to simulate IMU sensors in a Blender animation in order to generate data. Specifically, I've parented (using 3-vertex parenting) mesh cubes to a human body mesh, which I've animated using ...
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1answer
21 views

physical weight on rigid complex object

I am not new in Blender but in rigid physics. How to get a pendelum swinging down / rotating around the axis in case of model weight?
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1answer
78 views

Collision detection during active modelling

I'm a newbie in Blender and I'm scripting in Python a routine that arranges irregular bodies according to a placement algorithm (Using AI and self-learning methods). The problem I have so far is that ...
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16 views

Riged bodies not coming to rest and falling through each other

I am having trouble with a small animation. All I wan to do is have the wine bottle sit in the rack so that I can tip it over and have the bottle fall out, but the bottle will not even sit in the ...
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Animation simulation does not work when files re-opened

Sorry for more noob questions but I have made a few animations now and I have a recurring problem....when I close and reopen a file the animation simulation (not sure if that is the right term for it, ...
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1answer
88 views

How to make a specific area of a soft body behave like rigid body (or vice versa)?

Is it possible to make a part of a soft body mesh behave like a rigid body without pinning the vertices of the object? For instance, following this answer I painted some of the vertices of the soft ...
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1answer
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rigid column and bean not falling correctly

I created a column tied to a beam that should fall over because of the weight of the beam, however, as seen in the linked video the column falls, but does not topple over. I tried changing the "...
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unsure why my particles are still going through the wall

as you can see the particles are completely ignoring the wall to the left and they all go straight through the floor also is a collision object but it has no problems as the particles hit the floor ...
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1answer
38 views

Object Physics Don't Work for Rotation

Alright: I'm new to blender and for the last several days I've been struggling with a problem with the rigid body physics. Here's how it goes: Open new blender project Change to cycles render Import ...
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1answer
35 views

Can you make a mesh follow another mesh with Cloth Sim?

Basically, I have a mesh that is being controlled by Rigid bodies and another one by a Cloth Sim that is pinned. Is it possible to have the pinned part of the cloth mesh follow the other mesh that ...
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Bounce Objects Inside other Object

I want to make objects bounce around a constraint. My first thought was to place the objects inside a sphere and have them bounce around; however, the objects just fall through. Even though I use ...
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Very slow simulations

I've recently built a new machine (i7900, 32GB RAM, 2 x Quadro P4000) and the render performance is good although the hardware doesn't break sweat and i think it could be even better if Blender used ...
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1answer
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Is the physics engine capable of reproducing this effect of a ball oscilating due to a water jet? [video] [duplicate]

So I have this video: https://www.youtube.com/watch?v=yq_qSWZDHHk I'm wondering, is it possible in a scene to add a water source on top and a rigid-body ball on the floor, and with the correct ...
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1answer
28 views

Rigid body activates, before it interacts with another object

I want the pitcher on character's hand get hit by a plate and fall and then I want other plates to destroy the rest of the character but everything falls apart even before plate hits anything.
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Sand won't stay in hour-glass?

I am trying to make this sand-in-hourglass effect in Blender and I set it all up but the grains don't stay in the hourglass at the end. They collide correctly in the center but they just fall through (...
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1answer
35 views

Is it possible to do a Rigid Body chain that needs to split at a certain frame?

Is it possible to have a Chain made of individual links that is being controlled by rigid body physics to split on an exact point on an exact frame? I have a chain around a character and in the ...
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1answer
226 views

Creating a Soft Body Surface that Responds to Different Masses of a Rigid Body Object

Dear Blender Community, There's quite a few posts discussing the interaction of rigid body objects with cloth and soft body objects, but I haven't yet found one that provides a satisfactory answer to ...
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2answers
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Rigid body physics: Why objects are attracted without any force applied?

I am running a very simple simulation. However, something weird happens at the beginning of the simulations. It looks like the chair is pulling the monitor towards itself. Or the monitor is attracted ...
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1answer
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Automation for baked rigid body dynamics baking, creating armatures, and transferring to armatures

I would like to streamline the process of creating game ready baked rigid body simulations, and I am wondering if there already exists function, add-on, or script which does this. This would expand ...
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52 views

Simulink visualization in Blender

I'd like to visualize the motion of a 3d object in Blender. The motion will be determined by the evolution of a Simulink model. I read that this can be done by sending the information from Simulink ...
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1answer
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Copying keyframes makes objects snap to one point

I am quite new to blender, and I wanted to make two fractured rigid body balls collide in the air, but I am running into problems. I can make a single pice of the fracture move, and then become ...
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1answer
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How to make rigid bodies freeze?

I'm pretty sure this is a duplicate. I'm just not sure how to describe it to someone else. Here's what i'm trying to do: I am creating a simulation with a cube, and a "bullet" going through it to ...
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why car is not falling after joining mesh using rigibody in blender?

I have problem animation. Why is the car not falling like the cube is falling? After I joined all parts of the car and using rigibody the car is not falling. The car is falling but its not like cube.