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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Why does my Fluid simulation look like there is a floor where there isn't one?

I'm trying to set up a fluid simulation to flow down this guys arm but it keeps ending up looking like this. Is there something I need to apply to make it not do this? Additionally, I can't seem to ...
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How to add regular animation after a rigidbody bake

I am creating a small animation with some dice dropping down and rolling using rigidbody. I want to be able to slide some off the dice to the side and then re roll until the animation gets yahtzee. ...
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Mesh bounces of while playing the animation

I have applied Rigidbody to two of my mesh and set shape collision as the mesh for both of my objects. But when I play the animation the mesh bounces off. Can someone please clarify whats the issue. I ...
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Simulation of objects falling one after another

I would like to animate a great number of Cubes, falling from a plane located in a determined height, one after another. Each cube should be placed close to the cube placed before. What I've want to ...
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1answer
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Low CPU usage with simulation

I am trying to do a simulation in blender in order to place some objects on a ground. During baking or simulation in real time everything is super slow (less then 1 fps) but CPU usage (6700K i7) is ...
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Limit the rigid body dynamic overshooting

Help needed. In the attached dynamic system I would like to limit the overshooting in the end. I can't found a solution. The cubes are rigid bodies, connected with generic rigid body constraints (RBC)....
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Object Rotates slower and only to frame 250 than simple cube with rigid body physics motor

I am trying to make a simple gear rotate with a certain speed, therefore I added a hinge and motor rigid body constraint. But when I start animation the object only moves very slow and only to a ...
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27 views

How could I create a sand dune animation?

I've been working on creating a whole bunch of nature animations and one that I've been trying to create is the "windy desert". Is there any way that I could simulate this in blender. To be more ...
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Bake object animation to vertex animation?

I made a glass shattering animation, which resulted in 500 separate objects (shards). I now want to combine the entire scene into one single object, without loosing the individual animations of the ...
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28 views

Smoke trail Effect particles not showing up in image render

I have created a particle system but when I try to render an image none of the particles show up. Only the plane used as emitter is rendered. The particle circles show in 3d camera view but not when ...
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How can I simulate a rigid body placed on top of cloth? [duplicate]

I am trying to simulate an object placed on top of some rumpled cloth. I can simulate the cloth ok (cloth falls 'over' an object to cause it to crumple, then falls on a rigid body) but when I try to ...
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61 views

Why the simulation I made in Blender has a different behavior by changing only the size of element?

I premise that is the first time I use Blender. I would like to simulate a Cubipod installation by a construction crane, for my Master Thesis project in Coastal Engineering . First of all, I should ...
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Looping baked physics simulations

I want to loop my baked physics simulation like I did in Maya with Animation Layers but can't found them in Blender. Here's a video of what I'm trying to achieve: https://youtu.be/_1j5Tf6ulII?t=266
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Can't Get a Soft Body to Interact With a Moving Rigid Body

I'm trying to place a cube in the center of a sphere and have them fall onto a plane. The plane is solid and every object has collision enabled. The sphere is a soft body and the cube is rigid. When I ...
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v-hacd blender 2.8 with physics engine

I am trying to get to work with the V-HACD add-on on Blender 2.8. While the convex hulls decomposition of the mesh works well, I was wondering how to make it work with the physics engine to animate ...
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Roulette Simulation Rigid Body

I am currently making an roulette simulation. I have 4 main objects: the bowl, the sphere, the spinner in the middle and the separators which separate the numbers (I don't know the correct name for ...
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Molecular Script is only using single core?

im using blender 2.8 with molecular script its baking the particles using only single core although my pc has 12 core and in the setting the cpu core shows that it's using 12 core with the higher ...
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24 views

How would I simulate a rigid body that's connected to a cloth?

I want to simulate a hammock, and I want to make some metal loops to go in the fabric of the hammock. I don't want the loops to be simulated as a cloth like the fabric; I want the metal loops to have ...
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Blener 2.8, how to make a rigid object hang from a cloth simulation?

The desired end result is that the necklace is cloth-like, and the star-shaped charm is rigid. Both react realistically to the environment as they hang around the character's neck. Thus far, I can get ...
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dependency cycles in animated physics

I have a recurrent dependency cycle when I launch a script to run the physics engine : Dependency cycle detected: OB0092.001/Transform Component/TRANSFORM_FINAL() depends on OB0092.001/...
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Rigid body animation

I am currently making an roulette wheel for practice. Now I wanted play a little bit with animations. I am using the rigid body. The ball is rolling down the roulette wheel, so that works fine. But as ...
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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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Algorithms used in Collision detection, Rigid Body Simulation

I had a school project done in Blender using Rigid Body simulation where obviously collision detection plays a huge role and I want to be able to explain in better detail how it all works in the ...
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Rigid Body stops at the upper surface of a hollow cube

I am very new to blender and so forgive me if the question sounds vague. I am trying to create a scenario where I have a hollow bin with cloth on its edges and drop some objects into it (In Blender 2....
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How do I change Rigid Body Simulation speed in EEVEE?

I need to change Simulation Speed on Multiple Rigidbodies for a simple animation that looks weird because the Rigidbody simulation is too slow.
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Force Field/Rigid Body Rotation

I'm trying to sort of float objects towards the camera and have them drift rotate. I have set up a force field and a turbulent force but they only seem to be effecting the position of the objects and ...
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Export multiple simulated falling coins as single rigged object

I'm dropping a bunch of coins onto the floor. I want to export a single object consisting of one mesh and and one armature with one keyframed action for use in Unity. I have successfully converted a ...
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Rigid body simulation not interacting with objects that have an array modifier

I'm trying to animate objects falling onto a conveyor and falling off the end. I'm using a conveyor belt constructed by using an array and curve modifier to pattern the segments around the curve. ...
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1answer
22 views

Rigidbody - Change Dynamic simulation to animatic

I have an issue with the physics system (as you can see in the title haha). The problem is : I have an animation where an object (dynamic) rebound on a surface (passive - animate). After a while, the ...
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19 views

Torus passing through mesh

I have a sphere that I used the bolean modifier to join to a torus so that it looks like a sphere with a loop attached to it. I linked this a long chain of toruses attached to one final and static ...
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Momentum of rigidbodies in Blender 2.8

I am using Armory3D in Blender 2.80 to do some simulation. Free falling rigid bodies and rigid-rigid bodies collisions seems working. However, I have no idea on how to modify the settings to achieve ...
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18 views

Collision Modifier Stops Rigid Body Simulation

I was following Blender Guru's tutorial here and I had made it all the way to the particles when I added the collision modifiers. When I went to play the simulation to see if the modifier was working,...
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2answers
50 views

How to properly rig a watch to an arm

So in order to fix the wrist-twisting, I use bendy bone the twist the wrist erea (pic1). But this make the watch also twist too(pic2) . So is there a way to properly rig the watch or better way to ...
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How to hook a rope?

I'm trying to attach some tin cans to a car to create a concept of "just married". I'm confused to apply physic on it. When turning on "soft body" for rope (curve). Hooks I set are not working. And ...
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81 views

Blender 2.8 - How do you copy things like rigidbody constraints to other objects?

I found an answer 4 years ago, which is no longer valid for blender 2.8, can anyone help me? update: all suggested solutions are used to copy RigidBody or Constrain, but not "Rigid Body Constraint". ...
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How do I shatter rigid bodies on edges

So, I'm creating a rigid body that I am going to throw and I was wondering, is there any way to make the rigid bodies break apart on impact (Similar to the cell frac add-on) except on the edges?
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Is it possible to make physics respond to the effective mesh after a displacement material has been applied?

So let's say I have a procedurally heightmapped plane (texture -> displacement -> material output) and use the Cycles-exclusive "Bump and displacement" option. Is it possible to have rigid body ...
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35 views

Softbody + Rigid body = nightmare?

I've been experimenting to see if a Roger Kilimanjaro style render loop is possible in Blender. From my efforts so far I've learned that mixing Soft Body and Rigid Body simulations poses some ...
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21 views

bone's are not selecting

please help me, i can select main bone in object mode and pose mode. i can't select all other bone's . when i creat single bone and extrude after there are same issue, i also select first bone in same ...
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Cloths cant see imported models?

Both the Human figure and the slab are imported. even after setting them as collision object, the cloth passes through them and settles midway (ref. pic). I have made another slab and added a cloth ...
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How to change initial angle of rigid body Hinge Constraint?

My scene is a toggle of sorts that a ball falls on. A rigid body hinge constraint allows the toggle to pivot and a limit within the constraint keeps it within about 25 degrees to either side. I want ...
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18 views

Negative Mass for Rigid Bodies

I'm trying to create rigid body balloons in Blender, but I can't figure out a way to make them work. I've tried using multiple rigid body world groups, but that doesn't work the way intended. I know ...
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Blender 2.8 - How can rigid bodies be moved after physics simulation?

So I tried to follow this tutorial because I want to make myself a gold texture. After I have done the physics simulation I realized, I cannot move or duplicate the coins in any way. They snap back to ...
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What is The Effector Collection and what does it do?

It has the field weights and a collection for it so how do I use it the Blender docs(at the bottom of the page) dosen't have much on how to use it
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Is there a way to make particles act like rigid bodies

From what I know there was an add-on that that allowed this but that add-on is support was stopped in blender 2.77 Here is the add-ons website
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1answer
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location info of objects not changing in any frame for physics simulation (but their position changes) [duplicate]

I am new to blender and using it for generating a dataset for another problem that I am working on. I use physics simulation to make objects fall. The problem I am facing is that the object.location ...
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58 views

How to get a proper elastic collision in a rigid body simulation

I'm trying to make a rigid body based Newton's cradle in Blender 2.80. At the moment my setup looks like this: The constraints are hinges, rotated so the balls can only move left to right. After some ...
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26 views

Can a custom optimization code be added for doing accurate mesh deformation simulation in Blender?

I am interested in doing a crash test on a motorcycle using my own optimization code. I typically use engineering software such as ANSYS do perform CAE. I would like to know if Blender is equipped ...
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30 views

Delete/disable constraint during animation

I have a rope made of rigid bodies with constraints in between each one to connect them and I would like one constraint to be disabled during the animation so that the rope splits in the middle. How ...
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Rigid bodies connected by using 'point' rotate around a corner vertex (not the centre)

I am making a 'rope' using connected rigid bodies. Each small rectangle is a rigid body connected using the type 'point' which allows for rotation. 'Generic' has the same effect (https://docs.blender....