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Questions tagged [physics]

Questions pertaining to Blender's internal physics or the Game Engine physics.

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my soft body object is phasing through collision object

I am following a tutorial, and followed the exact instructions. I baked the simulation (laggy pc) and it looks like this (the outline is the soft body): Extra details: i have tried both thickening the ...
 Lily's user avatar
  • 23
-1 votes
0 answers
26 views

Lifting a bulk weight with crane hook

I would like to know the physics, Dynamics of slings and links connected to crane hook. I can attach all as single object and move with pivot. But it looks like all fixed and no motion. So I'm trying ...
Blenderfirst's user avatar
1 vote
0 answers
21 views

Simulation of water in a bottle

how do I do a simulation of water in a bottle. So that it turns over there relative to the position of the bottle. Thanks)
Паоло Карвацький's user avatar
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20 views

What's the easiest way to contract and expand folded patterns? [duplicate]

I'm trying to create a folding paper thing like shown in this video https://bramfritz.nl/wp-content/uploads/2024/05/paravent_base_grid_1-1.mp4 It goes from being somewhat flat, to scrunched up into a ...
John Smith's user avatar
1 vote
1 answer
33 views

cloth physics clipping?

I have been working on physics for a skirt for a number of hours but I keep encountering the same issue seen in the video attached https://imgur.com/a/Ra8p26F I have object collision to 20 and self ...
Kaser's user avatar
  • 11
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0 answers
27 views

How do I make two objects deform correctly?

I am making a detailed 3D model of a Shed and I want to animate it assembling. I have two identical sheets of iron that need to be overlapped. I have animated them coming together and they clip (as ...
Chuckles's user avatar
0 votes
2 answers
65 views

How to give physics to a dress?

I'm mostly done with the rigging of my character, but right now I have stumbled on an issue of how to make dress to move with legs. My dress look like this. Parts of the dress that touch the body ...
R1ck1s's user avatar
  • 17
1 vote
1 answer
38 views

How to make an imported extruded round shape into a flexible wire?

how can I add flexibility to various existing bent round wiring shapes so that I could animate the connecting of the wires between LED fixtures? I have an electrical assembly of LED light fixtures ...
persyst's user avatar
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How do I exclude specific materials or vertices from Grease Pencil line art?

So I'm making a little animation with a cartoonish duck and added some line art with Grease Pencil. But here's the issue; it all looks good and nice, but there is line art around the duck's eyes ...
flyingdvd's user avatar
0 votes
1 answer
28 views

Where can I find the algorithm that Blender uses for dynamic elements (physics)?

I need algorithms like DEM, IBD, MSS, SPH. I know these are used, but where can I find more about them? My thesis is about comparing these elements in Blender and Houdini, but I need a site where I ...
Dávid Czvedler's user avatar
4 votes
2 answers
339 views

How to animate a solid block cracking

Looked around online for a bit and could not find an answer - most resources are about making a cell fracture + rigid body explosion. But I don't want an explosion/destruction animation. I just want ...
HullBreaker's user avatar
2 votes
1 answer
88 views

Rigid bodies interacting incorrectly

Im attempting to drop a sphere on a turbo compressor wheel and i want the sphere to "roll" down the fin it hits. instead, when it falls its like it hits an invisible box that's near the comp ...
Cloud9k's user avatar
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Absorption and scattering coefficient vs. Material subsurface properties

I did not find any information yet about the link between the subsurface parameters in the material properties (method, weight, radius, scale and anisotropy) and the physical equations explaining the ...
Rou's user avatar
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1 vote
1 answer
47 views

How to make rigged clothing react to collisions or gravity?

I am trying to model an army ceremonial outfit that has tassels under the epaulets. I would like to know how to make the tassels move naturally, as in when the body moves around, or the arm moves, the ...
noyou's user avatar
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-1 votes
0 answers
24 views

Bake to Keyframes greyed out

I am pretty new and struggling to bake a physics animation to keyframes. Does anyone have a clue?
blntm's user avatar
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0 answers
26 views

Force issue in Blender 4.1

Someone know how to make wall explode faster, I mean make piece of wall diseapper, I applied a force, but I try with the help of the wind but it gives the opposite result
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1 vote
1 answer
26 views

Force pulling specific objects together

I'm new to blender, sorry if it is's a trivial question: I have 3 cubes, A, B, C. I want to set a spring to pull together A and B, and a string that pulls together B and C. I tried to add rigid body ...
negedng's user avatar
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0 answers
32 views

Particle system as fluid effector

How can I have particles from a particle system be a fluid effector? I have: plane: emitter particle system with physics --> fluid --> type effector collision icospheres: instanced particles (...
xgjxcxzk's user avatar
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0 answers
12 views

Issues when applying simulation add-ons to downloaded model

When I applied the Fracture feature of an add-on called KABOOM to the downloaded model, I got the following results I got some weird new fragments like in the image. How do I fix it? Then I applied a ...
seong's user avatar
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0 answers
17 views

My new particles are moving in the wrong direction

I have been working with the particles, I created the first ones and everything worked normally, but now, when I create a new system of particles, it seems that the new ones follow the old ones, but ...
Oscar Andrés Ortíz Vanegas's user avatar
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0 answers
14 views

Balloon Air Physics

Is there any possible way to attach an inflated balloon to an object, in such way that the balloon will deflate through a path at a realistic rate and push the object?
GamerOfStrategy's user avatar
1 vote
0 answers
18 views

When I move the liquid-filled container in the liquid simulation, the liquid decreases

I animated a liquid-filled container. During movement, the liquid does not overflow or spill, but there is an extreme decrease in the liquid level. I tried various settings but couldn't find a ...
Sirozikas's user avatar
2 votes
1 answer
48 views

Making a mosaic fly apart corner to corner

I've been trying to solve this problem for days but get stumped every time. Their seems to be a black art of adjusting the physics settings for objects that are close together that simply eludes me. ...
smashingtuck's user avatar
0 votes
0 answers
15 views

baking and rendering with breaks in simulation, from lattice to cloth

I'm looking to animate/simulate/render physics that has gaps in simulation. I'll start with Lattice/Soft-Body that then affects a large mesh. But then looking a cloth sim its could get to be a ...
james_t's user avatar
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1 answer
41 views

Kinetic Rigging Question (Theo Jansen Style)

I'm trying to make kinetic mechanism, like link below. https://www.youtube.com/watch?si=Hn93VdvYxKf5NsK_&v=NM4q-f68TlY&feature=youtu.be Added armatures and IK constraints to the points that ...
Kiryung Nam's user avatar
1 vote
0 answers
39 views

I want to create a thigh stocking tightening scene

This is the scene I have created so far, consisting of legs and stockings, and the modifier composition of the two objects. It's a slightly ignorant structure, but because we had in mind the stocking-...
gagamart's user avatar
0 votes
0 answers
25 views

Can I make a particle system with fluid physics influence a dynamic rigidbody?

I am currently trying to make a simulation of a hydroelectric dam for a school project. I can currently get the particle system to populate the particles, and make them behave in a fluid-like manner ...
Sundayz's user avatar
  • 19
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0 answers
18 views

How can I set linear/angular velocity without using keyframes?

I want some objects to be physically simulated. I want to specify their initial linear and angular velocities and let that evolve for infinity frames, rather than keyframing position and rotation ...
spraff's user avatar
  • 127
0 votes
1 answer
58 views

Collisions with invisible objects in physics simulation

I'm creating an animation where balls are dropped, hitting boards and such using physics simulation. Occasionally, during the descent of the balls, there's an occurrence where they collide with ...
すかびーん's user avatar
0 votes
1 answer
23 views

Can you animate to location of a generic physics constraint?

I have two rigid bodies (one active and one passive) connected through a Generic physics constraint, and would like to animate the location of the passive rigid body so that the other follows. Imagine ...
Steffen's user avatar
  • 13
1 vote
0 answers
23 views

I want to have particles gather instead of die on contact

I am creating a blood flow animation where the artery is pinched off, restricting blood flow. Right now I have a plane with a collision modifier keyframed to open and close with the artery. I also ...
Stengy02's user avatar
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2 answers
34 views

Is there a way to extract coordinates of a moving object

I'm doing material composition research in blender. I wanted to know if there was a way to exact the coordinates of a moving object. Right now it's giving me the initial starting coordinate of the ...
user184860's user avatar
4 votes
1 answer
614 views

How can you animate a roll of tablecloth flying out of the backpack?

How can you animate a roll of tablecloth flying out of the backpack? After the flight it should be laid out on the table. I'm trying to combine these two tutorials, you can see at the link, but it ...
ferum's user avatar
  • 43
2 votes
0 answers
28 views

How do i turn my character into a ragdoll during an animation

Hey im kinda new to blender, id like to know if its possible to turn my character into a ragdoll in the middle of an animation or something like that. My idea is like my character tries to do a ...
SleepyCat's user avatar
0 votes
1 answer
28 views

Particles not dying when colliding with geometry that has "kill particles" activated

I have particles following a curve guide and a collision physics modifier added to a cube with "kill particles" activated. I have the permeability of the cube keyframed so that when the ...
Stengy02's user avatar
0 votes
0 answers
34 views

dynamic flesh/clothes interaction

right now i've followed this tutorial: https://www.youtube.com/watch?v=X26xROC9wao&list=PLht0LeoHjwm0uDBVf-45TdGMHQjwVGuWW&index=4 then i made a mesh with the shape of the breast and bound it ...
Enlor's user avatar
  • 1
0 votes
1 answer
21 views

Smoke not showing in Cycles Render

The smoke effect in my scene randomly stopped showing up in renders. I'm not sure what's changed Show in renders visibility is set to on The smoke has a material There appears to be no problem with ...
Mike's user avatar
  • 179
2 votes
2 answers
80 views

Is it possible to apply physics in object mode?

"Here's the situation. I am not an animator or a video game creator, however, I have managed to learn how to use physics tools, rigid body, passive, active, gravity, collisions, etc. I was able ...
Jorge Velázquez's user avatar
5 votes
1 answer
192 views

Rigidy body for an animated mesh with curve

I would like that these rigid body spheres to interact with this mesh animated object, how is it possible?
diniulian's user avatar
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0 votes
0 answers
42 views

What settings should I use to replicate this "lava" effect using flip fluids?

https://www.youtube.com/shorts/p3OhspLdgdU I want to replicate the emission strength fading according to speed like in the video. Additionally, I am trying to figure out how to go about having the ...
yanke555's user avatar
1 vote
2 answers
54 views

Can I create a physics simulation with a set outcome?

Using Blender 4.0. In a project I'm doing, I'm trying to have several different physics objects move around the scene but end up on top of each other. For instance: I want to have the bedframe slide ...
Paddlefruit's user avatar
0 votes
1 answer
40 views

Smoke Won’t Stop Emitting When “Use Flow” Is Unchecked

I don’t know what information to give. I set a key frame with “Use Flow” checked, then I add a key frame on the next frame, with “Use Flow” unchecked. The properties tab show that it is unchecked, and ...
Koast's user avatar
  • 1
0 votes
0 answers
11 views

how to use baked fire smoke fluid data in scripting

i am creating a fire and smoke simulation using the bpy scripting , to avoid the baking fluid again and again , i baked the fluid manually in another blend file with modular and openvdb , now i want ...
chirag's user avatar
  • 1
0 votes
0 answers
13 views

how do i scale inflow stream

i am in the middles of working on my project, in which call for the person to be in the shower, as in bathroon shower, and in working to get the water strean to look like water coing out of a sjower ...
Kiss Me Comix's user avatar
3 votes
1 answer
159 views

Is there a way to easily add all Rigid Body objects and Constraints in a scene to the Rigid Body World?

Using Blender 4.0. Upon duplicating my collection, the operation seems to work, but the duplicated rigidbodies are not automatically added to the Rigid Body World, which is the basic behavior whenever ...
Paddlefruit's user avatar
1 vote
1 answer
42 views

Why do fluids clip through effector after enlarging domain

Summary I created a basic rocket thruster via two planar inflows (smoke and flame) housed inside of a non-planar cylinder/cone effector (set to collision). The animation is fine with a smaller ...
Celery's user avatar
  • 11
2 votes
1 answer
32 views

Fluid inflow simulation won't stop overflowing even after using keyframes

So I was watching this YouTube tutorial that keeps the fluid animation going while stopping the flow from overflowing at a certain point, using keyframes. Following exactly what they did, as you can ...
sally's user avatar
  • 21
0 votes
0 answers
54 views

Cloth simulation not working on cycles(render)

POST UPDATED In order to animate a mop I followed this tutorial to add animation to hair https://www.youtube.com/watch?v=0Ek0QphhYmI, the hair seems fine in all view modes except in the render where ...
comando cortes's user avatar
0 votes
0 answers
23 views

Physics simulations (upward collision)

I would like to carry out a physics simulation in my project: context, I have a cooler (ice cream freezer) and inside it is full of ice cubes, the issue is that I want ice cream to come out of the ...
Sebastian Bustos's user avatar
0 votes
0 answers
31 views

Why do physics objects freak out when I rescale them?

I was working on my blend project with no regard for scaling until I realized that the physics was incredibly slow due to the actual size of the objects I was working with being giant. So I thought to ...
DED's user avatar
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