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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.

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.

Unlike the other simulations in Blender, the rigid body simulation works closer with the animation system. This means that rigid bodies can be used like regular objects and be part of parent-child relationships, animation constraints and drivers.

Viewport Rigid Body Simulation documentation at the Blender Manual

Game engine documentation also at the Blender Manual The BGE was removed from Blender in version 2.8

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Copy Physics To Multiple Objects

Using the cell fracture addon, I created many objects from my mesh. I want to have a rigid body physics on all of them. How would I copy one of the fractured pieces physics to all the pieces? I tired ctrl L and the copy attributes addon, but none of…
EmptyStuff
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Is there a way to set initial state with rigid bodies?

Let's say I set up a Rigid Body simulation in Blender (not in GE), and then run the simulation for a number of frames. Is there a way to tell Blender to use the current state and position as the initial state? So that when I go back to frame 1, the…
McWolfe
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How to simulate movement of rollers

How can a simulation smoothly reproduce the movement of a box on a conveyor. The model described below will simulate the movement, but as the box moves from roller to roller, the box jumps and the rollers do not behave smoothly. What solver…
Ed Tate
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Where are the Rigid Body Tools in Blender 2.8

I'm looking for the Rigid Body Tools that used to be accessible on the Tool Shelf in Blender up to 2.79. Since the removal of the shelf, I can't seem to find it in Blender 2.8 anymore. Here's the menu I'm looking for: Where are these options hiding…
Jay Versluis
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Can an object have multiple rigid body constraints?

I want to simulate the motion of an artist's brush. A spine of pivot-constrained spheres will collide with a z-plane, which represents the canvas. To mimic the elastic properties of a bristle I need to constrain alternate spheres with rigid-body…
Neil
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Rigid body: how to display collision margin in Blender 3D?

Hello I'd like to display the collision margins in rigid body simulation how could I do with objects and particles ?
Leonel
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Teleport rigid body (physics) object?

Is there a way to "teleport" a rigid body when it comes in contact with some kind of trigger object? attached a sample scene. Edit: Perhaps this is a coding (python) question. logic would be if object makes contact with a trigger (another object)…
admbro
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Applying transformations at end of animation

I've used the Blender rigid body simulator to position several mesh objects on the ground in a scene. Now that they are all in place, I'd like to keep them in their new positions when I remove their rigid body modifiers and set the animation slider…
DKJ
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Rigid body objects passing through each other

I am experimenting with rigid body physics using the game engine for a project. This is the setup: I have 2 long rectangular prisms with hole. The 2 prisms are connected with a cylinder (acting as a dowel). I locked translation and rotation for one…
Icarus
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Why is my mesh flipping? (Rigid body simulation)

I'm attempting to run a simple rigid body simulation with the following parameters: A plane as a "floor" set as a passive rigid body, and a mesh "scrabble tile" as an active rigid body and all defaults except for "Box" as the collision shape. I'd…
Mehphisto
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Rotational spring

I am looking to model a rotational spring, e.g. a balance wheel of a mechanical clock. The [rigid body constraint/generic spring] only allow for translational springs. How could I do this?
Zorbas
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Boolean modifier creates mesh hole that Rigid Body Sim ignores

I am trying to model a pool table where the balls would fall into holes during play. If I create the Passive table object with boolean modifiers Difference with cylinder the RB-active spheres (balls) do not fall through the holes, whereas if I…
james_t
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Is it possible to change the gravity of a single Rigid Body in the scene?

I have tried to make a small rigid body animation in Blender 2.92.0, where only one of the objects is floating, while still interacting with the other rigid bodies in the scene, that are falling normal. I have tried every setting in knew about, but…
Lars Kölbel
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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?
Pro Effects MAX
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Rigid Body Box Flaps

So... I have a cube I am making into a cardboard box, and i have 2 flaps on the sides. Well, how would I get the flaps to bounce around/move when the object hits the ground? EDIT: would I have to use different objects and parent them, or could I…
Yelefthandman
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