Questions tagged [rigidbody]

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11 views

Collision physics. Rotating object constantly hitting coffee beans in a grinder or roaster

I would like to make a collision with a spinning object in a coffee roaster/grinder and the coffe beans being roasted/grinded. I have tried with rigid body physics and collision physics, without any ...
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1answer
20 views

Why is my rigidbody broken?

Both rigid bodies have mesh collisions.
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0answers
15 views

Rigid Body 'Start Deactivated' not working?

so I made this animation where a circle is expanding and should hit the rocks floating around it. The circle has a torus around it which is parented to the rest so it follows. I made the rock pieces a ...
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2answers
31 views

rigid body not rotating after collision

I was trying to recreate a bowling alley in Blender 2.90. The YouTuber "Default Cube" made a series of 3 episodes on YouTube where he showed how he did it so I watched the videos and tried ...
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1answer
21 views

Why does my RigidBody jump weirdly in the begining of the animation?

As soon as the animation starts the top of the box weirdly jumps or wiggles, depending on wheter Mesh or Convex is selected. Here is the download of my project
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1answer
14 views

object shrinks whenever I give it rigidbody physics

I am trying to make this helmet that you see here below, interact with the ground using rigidbody physics. However, when I give it an active rigidbody and push play on the animation, the object ...
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29 views

How to Make a Rigid Body Car in Blender

I am making a car with blender and I want the car to ride with rigid bodies. I already have the wheels and they are all moving and reacting to slopes but now I want them to connect to the rest of the ...
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24 views

Object>>rigid body>calculate mass: mass estimates are bit out on shape created using Maths Mesh tool

I was hoping to use Blender to calculate the mass of shapes with curved surfaces. To start I took a 1m cube and performed a boolean difference with a parabolic curve (x=0 to 1m)that was extended ...
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15 views

Aligning the meshes of two scanned fragments of a 16th centruy wooden altar piece for glue joint analysis

I am working with photogrammetric 3D models in the restoration of wooden cultural heritage. I use the digital 3D models to analyse the gluing surfaces of two fragments of a wooden altar piece from the ...
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2answers
55 views

An object inside in another object with physics properties - rigid body

I am trying to create a physics simulation, but I not succeed... What settings should I use for rigid body if I want to create an object inside in another object with physics properties (rigid body) ...
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1answer
50 views

Why do rigidbodies snap back when keying “animated”?

I know this question has been asked before, but no one has properly answered it. I am trying to animate two rigid bodies on a curve to hit each other at a certain point, but upon keying "Animated&...
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25 views

How to make a rope that doesn't stretch

I have a rope made out of a plane and cloth sim. One end is just pinned to hang in the air and the other is attached to an empty which then I can move around the scene to see the way rope interacts ...
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2answers
42 views

why chain not fall on the ground?

With the chain as active and ground as passive created rigid body. Why the chain unable to drop on the floor. Chain is going through the mesh. Any suggestion whats going wrong
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0answers
15 views

I have two objects, and want one to be cell fractured at the beginning and the other after some time

I made an animation in which the sad characters head falls down and breaks into pieces, and then his body is shattered to the ground, but when I cell fracture them, they both break at the same time, ...
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20 views

How to calculate volume of a mesh object

With the 3D print addon. Under Rigid Body -> Mass i have put the value of 5Kg. And Under object -> Rigid Body -> Calculate mass with a custom i have change value to 7200 (cast iron) as ...
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1answer
22 views

Bounciness in Rigid Body

I tried to make up a rigid body simulation (a torus falling onto a plane) and I have tried to modify the bounciness from 0 up to 400, but I didn't observe any difference. What this parameter is ...
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22 views

I want to place the rigidy body object in a circle

If i copy an object set as a box in a rigid body using spin in edit mode, it will not be copied in a normal form. Is there a way to replicate normally using spin? Or is there another way?
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0answers
47 views

Cannot move array of objects

I tried to create an array of these mini figurines and then separate them so that they can be moved individually. I applied rigid body settings to one of the figurines, setting it as active and copied ...
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1answer
43 views

How to make a rigid body go up?

I have 2 cubes, I want them to collide with one “falling” upward and the other downward, i tried to make the mass -1 but it set it to 0.001kg and not -1. How can I make it “fall” upwards
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1answer
48 views

Rigid Body Simulations never work- everything flies in random directions

I am so confused. I try to make a simple rigid body animation. There is one piece in the middle which rotates and some other parts are connected to it and should move if the rotation is taking place. ...
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0answers
73 views

Speed up rigid body simulation baking?

I'm making train simulations using rigid bodies and I would like to bake them more quickly so I can tweak parameters more efficiently than before. Is it possible to force blender to use parallel ...
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2answers
35 views

Bugs with Animation of tank. Blender 2.83 stl

Well, I'm trying to do a tank like in this tutorial :https://youtu.be/q5fjslhomsI 1.There are often bugs with metric system. It just doesn't work properly that good! C'mon I have to make stiffness ...
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1answer
54 views

Can't move Mesh with Armature

I have read a lot of treads with the same problem. And I think I have tried to make everything. But Can't still get it to work. I'm new to Blender. Working in Blender 2.90.1 I have made a character ...
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1answer
57 views

How to freeze a falling rigid body animation for good?

What I've been trying to do is to make a simple bowl in which candies fall using the the rigid body animations for both. But after say certain key frames I want it to be the final(or rather the ...
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0answers
26 views

can I have a fluid react to a rigid body?

I was messing around in blender and made a small course where a box drops onto a ramp and slides down in and then it hits a ground plane and hits some water, but I can't get the water to react to the ...
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35 views

Active rigid object not following the animation movement of other rigid object

I've created a conveyor belt out of single links using an Array modifier and then a curve modifier to get a conveyor shape. Additionally I've added a keyframe animation on the Y coordinate with a ...
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0answers
12 views

Uniform rigid body constraints

is threre any way to connect a lot of pieces (like fragments form cell fracture) together with rigid body constraints uniformly? When you normally use connect, its just connects all fragments to the ...
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1answer
32 views

Could someone find any logic in the rigid body world and rigid body constraints behavior?

I have a scene where I'm trying to find a logic for better understanding of rigid body world and rigid body constraints regularity. The setup seems work as I expected, but when I move the "Vert&...
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1answer
25 views

rigidbodies not working with a lot of objects

i have added a lot of objects with rigidbodies but some rigidbody objects are not working. i think its happening because there are a lot of objects : /. i have tried searching on web but i didnt found ...
2
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1answer
34 views

Part of Object Goes Through Plane When Falls

I am using Blender 2.81a and just doing a Domino Animation. But faced a little problem. When the last domino falls, it kinda goes inside the plane and the comes out. But I don't want that go through. ...
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1answer
75 views

How can i drop my mesh on floor with rigid body

I have a floor and mesh (pen). Im dropping the pen on the floor. Floor is set to passive and pen to active. Added collision-on to floor. When the pen is not dropping on the floor. Its flickering in ...
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0answers
15 views

Complex Rigging Issue

I have a scene where a random left hand can appear anywhere in the world scene and in any pose. I then adjust another left hand which is stationary, whose palm is always facing a camera, to take on ...
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0answers
8 views

Replacing rigs in excisting model / linking rig to model - Kinect

Excuse my English, since I am not really good at it. I am a little bit nervous asking this question, not sure if there is already an answer or if I am in the right place. So sorry, couldn't find ...
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1answer
40 views

Rigid Body objects pass through Basket

I am just a beginner of blender. I use the function of rigid body but objects keep passing through the basket. I searched and tried different methods from the internet but still not successful. For ...
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17 views

Blender 2.8 physics passive body does not attract active ones

I have a simple physics setup with a passive mesh supposed to attract active ones. Yet I cannot figure out why it does not. What did I miss?
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0answers
20 views

How to put an active rigidbody inside the other without crossing the other during the simulation?

How to put an active rigidbody inside the other without crossing the other during the simulation? I'm trying simulate physically a motor, now I get the problem when the motor shaft crosses the motor ...
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1answer
18 views

Rigid Body Problem, Active objects stay rigid, its not working

Gravity seem off in the world. I made a big cube and a lot of little balls(50) at the top inside. I want them to fall to the floor, but things are off in my blender rigid body World. The balls are the ...
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1answer
101 views

How to make a 2D ragdoll

I can't find a solution to my problem anywhere on the web. Maybe I don't know how to search for it. I have this 2D character that is set up the same way that those cardboard cutout puppets with pins ...
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0answers
156 views

How to change the direction of motor rotation?

What am I trying to do? I tried make a small motor (2cm) because I need simulate (physics, not only animation) this, but I can't its rotation correctly. See in the image, I have a "Motor Body&...
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0answers
28 views

Why do my rigid body objects have gaps in between them?

I have tried to make a rigid body simulation to make apples look more realistic but when I start the simulation, apples are not touching each other they have a lot of space between them and when I ...
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1answer
186 views

Physic simulation is visible in viewport, but not in the animation render

My physics animation is working as expected while I'm inside Blender. When I try to render the animation, the simulation is not running. Every frame is identical (the objects are static). Viewport: ...
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0answers
18 views

Rigid object behaving differently in Object and Edit mode

Hello, plese help. How to fix this issue. In edit mode it look good, but if not..
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1answer
32 views

How do I merge the body and the legs?

So this is my first time modeling a body and I've made the torso and the legs in different objects so I wouldn't mess it up, now I don't know how to merge/connect them to make it a single object and ...
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1answer
26 views

Book Shelf: Rigid Body Sim- Books thrown out

I'm working on a bookshelf animation, nothing fancy just the books falling into place. I applied rigid body properties to both the book (active) and the shelf (passive). Upon playing the simulation, ...
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1answer
29 views

Rigid Bodies - objects exploding and clipping

Well, the title just explains my problem. I have been searching online but cant find any solution for me to understand. At first I started with real lego size blocks and the I read rigid boides arent ...
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1answer
139 views

Set material density [kg/m³] instead of mass [kg]

Is there any way or plugin which allows enter material density in [kg/m³] instead of direct enter real mass [kg] how it is now in Blender. Blender knows the exact size of the object, so it is possible ...
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0answers
18 views

Problems between collision and rigid body

I have a scene where it has four objects, 3 of them are having only rigid body and another one is having rigid body with collision modifier (called as object D for easy understanding). Meanwhile, a ...
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0answers
10 views

Delaying rigid body sim not working in my scene?

So I'm making an animation where an object goes around the area "Spitting" monkeys around The idea is that it spits one, then goes to a new area, then spits the second, then the third area ...
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1answer
115 views

How to fix gap between rigid body objects? [duplicate]

I've having some trouble animating my donut. When it reaches the surface there's a gap between the objects, and sometimes the object jitters and bounces when it reaches the surface and I don't ...
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1answer
50 views

Artefact in imported Hair

I have wierd bump in hair and i am desperate. I created a model in VRoid then exported it to blender. Then made clothes and details, exported the whole thing to MMD. In MMD it worked okayish. After ...