Questions tagged [physics]

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

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Apply other physics to particles from emitter inside Blender

I am quite new to Blender. I would like to know how to have an emitter emit particles subject to a particular physics. More precisely, I try to simulate a "...
aheuchamps's user avatar
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15 views

Blender Animal Tracking

I'm very new to Blender and this is my second week using it. I'm currently working on a project where I want to track a lion's head in a video and add plants with physics to its head. I have a video ...
Hisoka514's user avatar
1 vote
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25 views

Why is the rigidbody not animating with the character?

basically, I am making a walking animation and i already made the rigid body drop and rest on the neck of my character in t-pose, now when i try to play the walk animation the whole necklace just ...
Dami lola's user avatar
1 vote
1 answer
64 views

How can I make this glass more realistic?

I am trying to do a liquid simulation where the fluid is pouring into the glass but I'm not able to make the glass look realistic... Below are some examples: Edit: Here is the .blend file
prestonferry's user avatar
-2 votes
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The object is struck, did not fall on another object please give me any answers [closed]

Rigid body is not falling or moving While animation the body it self
Jana Mahendra's user avatar
3 votes
1 answer
347 views

These physics object wont fall straight down

I'm not using any actual Animation, so I'm just trying to get my Physics objects to fall straight down. But for some reason no matter what they always just fall straight through the floor, and at an ...
Dark Eye's user avatar
1 vote
0 answers
37 views

Is it possible to pin a vertex group in its current position during a cloth simulation?

I'm trying to do a cloth simulation where it is simulated up to a certain frame, and then I want to pin a vertex group at the current state, allowing the simulation to continue. Currently if I try to ...
taptaptaptap's user avatar
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11 views

Giving individual particles cloth physics, and alternatives?

I wanna make a slime type creature that leaves behind puddles of slime as it jumps around the scene. I had the idea of attaching a particle system that emits cloth-physics spheres that collapse when ...
uwuziel's user avatar
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1 answer
37 views

How to create a soft body trampoline?

How to create a trampoline using Blender physics simulator? The bouncing and collision location is correct. Only the ball does not "dent" the trampoline needs to be fixed. Increasing soft ...
chhdgxhuc's user avatar
2 votes
1 answer
107 views

Rigid body roll but not slide

I'm doing my first ever physics simulation in Blender. Dice have to bounce from one ramp and slide off another, but when it hits second ramp it continues rolling for pretty long time. Lowering ...
Vegoram's user avatar
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36 views

Rigid Body Physics and Mecabricks Lego Destruction

I'm trying to use rigid body physics on a Lego model that was built inside of Mecabricks and exported into Blender. My hope is that the model will stand in place until I animate a sphere to go ...
One Spark Media's user avatar
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22 views

Physics Simulation - Setting Rigid Body World in the Code

I have an issue on a physics simulation in Blender. I code a falling down cubes and texted on the code the rigid world properties like cache. To be brief when a run the code it doesn't generate the ...
Valerio Gianforte's user avatar
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Collision Problems with Hair Particles (Hair Dynamics) during animation

I’m having trouble with a character that has a particle hair system. I want the hair to move realistically, so I enabled hair dynamics in the particle settings. However, the hair particles don’t ...
Pool_DeadPool's user avatar
0 votes
1 answer
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Attaching Beads to Softbody Necklace

I am designing a character for animation who is wearing a thread necklace with beads of varying sizes attached. The softbody object is a mesh that boxes the thread, which has a surface deform modifier ...
pseudoku's user avatar
1 vote
1 answer
42 views

How to make this 'overflowing rigid bodies' effect?

I saw this cool effect in the 2022 Reddit Recap video: As you can see in the video here, there's a cool 'overflowing' effect going on that I'm not entirely sure how to achieve (I'm trying to make a ...
Andy's user avatar
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36 views

Deactivate physics for touching objects

I have a simple scene with falling dominos. Each domino has "deactivation" turned on with crazy high velocity values. Unfortunately, after dominos falling as expected, that don't lay still, ...
Boris Brodski's user avatar
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26 views

Access Underlying Physics Engine with Python

I need to detect when (at which frame(s)) collisions occur in my rigid body simulation. I have tried a few tricks (see below), but ideally I would like to use the physics engine to get accurate ...
Joshua Rapp's user avatar
1 vote
1 answer
20 views

How to stop a fluid action (beginner question)

I'm only partially a "beginner" I've done editing in Premiere, and a lot of 3-D shapes and camera movement in Blender. I am learning to do a "Text Melt" and all is going well. ...
SpacemanScott's user avatar
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1 answer
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Particles are falling through Collision Object - Even with Size Deflect

I am trying to emulate wind blowing dust in a desert scene, and try as I might I cannot stop the particles falling through the emitter object (a simple terrain). The particle emitter is set to "...
DrIgnatiusCole's user avatar
1 vote
2 answers
21 views

How do I keep the shape resulted by the physics simulation

I am trying to simulate clay and found this answer: how to make a clay-like physic simulation?. The answer has a .blend file and I am trying to recreate it. In that .blend file a plane moves up-and-...
dotdolfin's user avatar
0 votes
0 answers
31 views

Hanging object not following the rotation of the rope

I'm trying to animate a hanging lamp that swings in a loop, however, as you can see, the lamp itself is not following the rotation of the rope, even though I have copy rotation applied to the object ...
Bernardo Silva's user avatar
0 votes
0 answers
19 views

Moving smoke animation on a more complex mesh

I'm trying to animate a sword that bleeds black smoke that falls, and I've followed several tutorials and looked across many websites and I am unable to find a solution. I am a beginner at blender so ...
Nicholas's user avatar
1 vote
1 answer
65 views

How would you animate this (Video example)

I'm trying to animate this with meta-balls for a few days now. First i tried it with reguals spheres and cloth physics but i think the effect meta balls give is good enough. My main issue is how do i ...
ki_one's user avatar
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0 answers
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Can I calculate the moment in different parts (in an assembly) in Blender?

Can I calculate the moment in different parts in an assembly in Blender? I would need to calculate the moment affecting a machine when lifting different weight of objects. Can this kind of ...
Elina Kuusisto's user avatar
1 vote
1 answer
21 views

particle never settles in place

Here is a situation I cannot solve in Blender :confused: I have a particle emitter, that emits one particle. there is a cube object that has a force on it with the strength of -50 to suck particle ...
Serg's user avatar
  • 111
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0 answers
38 views

Two particle systems interact (collide) with each other

Because I want to duplicate this rig many times, how do I make the spheres collide/deform/interact with the planes without making the instances real? (Making them real and then duplicating creates ...
Aubrey's user avatar
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14 views

Asking for making Hot Food Smoking, how to make it easier for normal computer?

I want to make the smoking for hot food, but my computer is not that good. This is my Physics Setting, what should I change for better time Baking? Domain: Resolution Division: ‘160' Adaptive Domain ...
Iampoor's user avatar
  • 19
1 vote
1 answer
29 views

Object enters into another deforming it as it passes through

I have a cube and I have a sphere. I would like to do this: the sphere stays fixed at one point and a cube goes up from the bottom. As the cube goes up it engulfs the sphere and its surface deforms. ...
Lorenzo Barberi's user avatar
1 vote
0 answers
27 views

Rigid Body physics objects keep exploding

I have a remeshed Susanne with some fractures. Suzanne has a Passive Rigid Body with collisions shape set to Mesh. Fractures are ...
Sergey Kritskiy's user avatar
0 votes
0 answers
13 views

Quick smoke effect doesn't provide fire speed option (3.5)

I'm trying to make my smoke expand faster. I was watching this tutorial: https://youtu.be/ew1cr665u7M?t=60 Don't see any of the fire stuff in Blender 3.5
SmallAngryChild's user avatar
1 vote
0 answers
18 views

Why does the wind force field not do anything?

I'm animating a rocket launch and after hours of tweaking I've come to the conclusion that the wind does nothing (it stays the same if I remove it) the exhaust comes out as a blob like this rather ...
LikedLizard's user avatar
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26 views

How can I change physical properties for a certain vertex group on a cloth animated object?

I'm using blender 3.1. I have a button down shirt, and I want to make some parts of the cloth more rigid, for example the collar. I know I cannot assign several cloth simulations, I could also just ...
Beszteri Milán's user avatar
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0 answers
19 views

Physics Based Animation in Blender to prevent model clipping

I'm new to Blender and I'd like to know something I've been asking myself for a few weeks now: Is it possible to add physics to the animation in Blender in order to make the model not clip inside ...
messof's user avatar
  • 1
0 votes
0 answers
18 views

Smoke Simulation artifacts before start frame

I have an explosion in my scene, and I am getting strange artifacts from the smoke simulation even before the start frame. The start frame is 216, or when the explosion actually occurs. There seems to ...
Mike's user avatar
  • 185
1 vote
1 answer
40 views

Weight painting mass distribution?

Does anyone know if it's possible to use weight painting to distribute mass within a mesh for physics simulation purposes? Like say I had a uniform mesh pole and I wanted to adjust the weight of one ...
Steve Watton's user avatar
0 votes
0 answers
25 views

Baking the physics animation takes too long

I am baking some curtain animation, i wonder why it does not use all of the hardware source avaible. As i know it uses CPU to calculate Physics, looks like it does not use enough of the CPU. Is this a ...
Hasan Can Eker's user avatar
0 votes
0 answers
19 views

disapearing mesh

Why is my mesh disapearing when I add cloth physics?
Narges Ng's user avatar
0 votes
1 answer
30 views

Blender magnification calculation?

I have a very simple scene: A 100 x 100 mm (h) rectangular plate at the origin A spotlight on the target A camera looking directly at the target. The camera is placed 1000 mm away from the target (d),...
Aleksander Marek's user avatar
1 vote
0 answers
28 views

Can we apply gravity to only one object

I have two main objects in my scene. One is a player and another is a spaceship. I want to apply gravity to only one object. Can i do that?
Neeraj Manhas's user avatar
0 votes
0 answers
26 views

Character's rig not moving with cloth object for physics

I followed this tutorial on how to make cloth physics with a rig. However, the bones that I told to parent to the cloth object are not following said cloth object. Here is the set of bones I attempted ...
Draco1660's user avatar
0 votes
0 answers
13 views

Blender Animation or Physics?

So i see this video here where the character leafs move with the character https://www.youtube.com/watch?v=PunVHiOxUEk&t=902s In blender is there any physics that can achieve this effect? or would ...
Andy's user avatar
  • 13
3 votes
0 answers
46 views

Is there a way to make a weathervane simulation

I was wondering if a weathervane physic simulation was possible (i.e. a weathervane that is pushed by a wind). I can create something that looks a bit like it (thanks to Chris) but that is not ...
moonboots's user avatar
  • 131k
0 votes
0 answers
36 views

Updating Objects Flags takes hours

I'm rendering a simple fluid simulation. Water from an object into a glass. After 1 week, I'm now at frame 144 (of 200) and "Updating Objects Frames" takes 3-5h (I haven't measured the time) ...
Sven S.'s user avatar
  • 227
0 votes
0 answers
34 views

Can I make different result of Dynamic Paint Simulation using Wave type Surface on different layer of scenes?

I am asking this because, I have tried the simulation and get these result ( I am using Blender version 2.79.7,Windows 8.1,32 bit) First Simulation (Layer 4) After That,I tried second simulation (...
Earvin Williams's user avatar
1 vote
1 answer
70 views

My object is moving out of place during a Cloth Simulation. what can be a problem?

I want to make a flag moving by wind. I have subdivided a plane then pressed on cloth physics, in edit mode it works normally but when I change it in object mode the plane jumps down. I tried many ...
Sophia's user avatar
  • 11
3 votes
0 answers
45 views

Objects falling through an animated hole

I have this little project going on, where I have a plane with objects standing on them. The plane has a hole, and I want to animate the hole around so that the objects standing on the plane just fall ...
Simonpeterpaul's user avatar
0 votes
0 answers
31 views

Force Surface with falloff cone. What is the general face specification?

Case 0. Image above. Here is a use case that appears to function. A single small plane [settings shape] [surface] and has a force with [falloff] [...
atomicbezierslinger's user avatar
1 vote
1 answer
54 views

After baking the cloth simulation my object goes crazy anywhere

After baking my cloth simulation with pressure on it, it goes crazy and disappears from my viewport. The scene is simple, just an sphere subdivided five times with cloth modifier, and a plane with ...
Alexis Rivera's user avatar
0 votes
1 answer
72 views

How can I copy physics (not rigid body) to multiple objects

I have 774 fractured pieces and I want them all to interact with a fluid simulation (flip fluid), however I can’t find a way to make them all physics objects at once, and I don’t want to go through ...
Cabbage's user avatar
  • 57
0 votes
0 answers
43 views

cloth sim clipping into collision object

the cloth sim i am using from a cg boost tutorial isnt colliding with the bowl correctly please help, i think ive followed all the directions correctly. Please help
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