Questions tagged [physics]

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

Filter by
Sorted by
Tagged with
1
vote
1answer
10 views

mesh collision rigid bodies acting very strange. (bouncing, shaking, etc…)

I am currently using blender version 2.92.2, and I am making a simple rube Goldberg physics simulation, however, for some of my objects I will need to use rigid bodies that have mesh collision instead ...
0
votes
1answer
64 views

Fluid simulation not working properly

basically i wanted to create a fluid simulation in which the liquid (soy sauce) pours out of a kikkoman bottle. I've already set up the domain, the flow emitter inside the bottle (tried to use both ...
1
vote
1answer
20 views

Soft sphere in a channel with obstacles

How to pass a soft sphere into a channel with obstacles and have it deform to its shape? What I want to do is Figure 1. I have tried following the steps for a sphere going down a staircase (Fig. 2), ...
-1
votes
1answer
21 views

Why is the mesh not colliding with cloth simulation? [duplicate]

Why is the Suzanne falling through the carpet? Suzanne has collision and rigid body physics and the floor has cloth physics with collision. I want Suzanne to fall on the cloth and it should slide on ...
2
votes
0answers
15 views

Whats the best way to add cloth physics to anime style mesh hair in 2.9?

I've decided to go with cloth physics, unless someone gives me a good reason to use soft body, but I'm struggling to figure out which method is best for animation. In my research I came a crossed at ...
2
votes
0answers
10 views

Edit Presets in Calculate Mass

In the documentation for Rigid Body physics we are told "There are many useful presets available from the menu..." However, I find many of them are not so useful or are completely redundant. ...
3
votes
1answer
297 views

How to propel an object, rotating freely in zero gravity, towards a collision with a fixed plane?

I downloaded a model of an astronaut from the NASA website, and I'm trying to create an animation with it to import into a Premiere video project, but I'm just a beginner at Blender and am having some ...
0
votes
0answers
18 views

Physics simulation do not appear in final render

I can't find the way to render a simple animation. I've been playing with cloth simulation + mesh deform, but the changes I see in the viewport don not appear in the final render. Can anyone check it? ...
2
votes
0answers
31 views

Is blender suitable for motorcycle crash simulation? (Semi-scientific)

I’m a long time 3d animator (20 years using 3d studio, Max, Maya). However, I’m retired from CGI work and now I’m MacBook Pro 2019 based. So my software options are limited to Blender or Houdini. I’m ...
1
vote
2answers
36 views

How to apply collision physics without destruction?

The sphere rolls down a plane though I it falls through the tunnel. How can I apply Chris' answer without applying the modifiers? Tried[0] as well [0] Passive rigid body physics not working with ...
1
vote
2answers
26 views

Physics vs. Keyframes

I am just starting out doing animation with keyframes so far. I got a little bit confused with the following things and how they behave to each other. We can make something move via Keyframes and ...
0
votes
0answers
17 views

Optimal way to animate dragging objects through space from a spaceship

So I'm working on a short 5 second animation for a stream alert. I've made a rocket and constrained it with follow path, then used some custom animation to make it appear to (shoddily) fly. I also ...
0
votes
0answers
6 views

Objects transformations not present in appended file

noob here struggling too much with something I think it must have a simplier way! I'm practicing modeling food, so I made a bunch of grapes in a plate so I can place them in a table. They look nice ...
5
votes
2answers
3k views

(Blender 2.8) Smoke not showing in Physics Properties

The smoke physics is missing and I don't know how can I fix that. Thanks for helping me ! Here's the screen of the physics properties.
0
votes
1answer
278 views

physics : blow sheets of paper with wind?

I need to create an animated shot where sheets of paper would be blown away by some (directional) wind, like you would do with leaves : I'm hesitating between animating it by hand (using curve ...
0
votes
0answers
26 views

Blender physics not interacting properly

I'm trying to create a conveyer belt like scene in blender using ecospheres. In the scene, icospheres are dropped onto the conveyer belt and carried out of scene, however the 3rd icospheres will not ...
0
votes
0answers
21 views

How to setup reciprocating compressor rig? [duplicate]

Note: I put my object names in "". I need to rig this reciprocating compressor such, that rotating the "Rotary Base" at its center, should pull the "Rotary Shaft" at the &...
0
votes
1answer
17 views

Baked Physics Simulation Glitching

I have a physics simulation with roughly 1700 objects (water bottles). I have baked the simulation and tried to render it multiple times. Rendering a single frame works just fine. However, rendering ...
-1
votes
0answers
24 views

How powerful is Blender Scripting? [closed]

I am thinking of creating a physics simulation for human body, skin, cloth, etc. It's a bit of a pet peeve of mine, and I'm currently not very serious about it. The goal is to create an environment ...
0
votes
1answer
210 views

Translation and rotation axes not locked

I'm designing a 2D rigid body physics orthographic animation in Blender Game. It's simply a cube falling on and bouncing off a surface (first picture). The camera (in orthographic mode) is pointed ...
-2
votes
0answers
29 views

How can i make this rocket exhaust flicker? [closed]

My friend gave me this for my rocket but it doesnt flicker like the real raptor engine does. How can I make it flicker?
2
votes
1answer
24 views

Is it possible to add spring/jiggle physics to a rigify metarig?

As the title says. I have found plenty of addons to do spring physics for bones. But all the ones I tried rely on custom properties that wouldn't carry over through the rig generation, and I could add ...
0
votes
1answer
95 views

How can I make a realistic collision bounds in BGE?

I have a planet and I want it to have some terrain, like mountains where the character can explore. I need the planet to have realistic collision bounds, but triangle mesh makes it act like a "No ...
0
votes
1answer
52 views

Body physics and jiggling for iclone characters

I want to bring my animated iclone characters into blender so I can add clothes and props and then render 3d VR. I want jiggling in the chest and butt for added realism but iclone characters have no ...
2
votes
0answers
14 views

Solid to liquid [closed]

I want a solid mesh cube to turn liquid and splash on the ground. Must be possible in Blender, no?
0
votes
3answers
2k views

Active rigid body objects fall through other passive rigid body objects

I am designing a Galton Board, so I have a group of marbles, which are active rigid bodies, and then I also have a bunch of rectangles, which the balls are supposed to hit and then veer off. And ...
1
vote
1answer
170 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 ...
0
votes
0answers
14 views

Why the collision don't work after baking?

I try to create a simulation of a firethrowing starting in a cave, moving inside it and getting out of the other extrimity of it. I think my particles simulation is ok and well colliding with the ...
2
votes
1answer
42 views

randomize falling pattern of an array

I'm having some issues with the simulated animation from learning blender. specifically my arrays of 30mm vulcan bullets, they all fall too uniformly perfect. The tips come off all at same time and ...
2
votes
0answers
17 views

Why do these objects appear to scatter across the screen?

I'm trying physics in blender for the first time. I have the keys set in a floating position, and I'd like them to rest as they would in real life. I've added a dynamic rigid body to each of the keys,...
1
vote
2answers
248 views

Keyed particles work on viewport but not in render, also they are not affected by force fields

When making a particle system with keyed physics, it works in viewport but the particles do not show properly in the final render. They reappear from the world center when all the previous particles ...
0
votes
1answer
38 views

Hanging lamp attached to a cord animation

I am trying to make an animation showing a hanging lamp attached to a cord. I am quite at the beginning regarding to physics (and blender in generell). So I made a cord, put the cloth simulation on, ...
0
votes
0answers
22 views

Rigid bodies animation failing to contain spheres within a moving box

I am animating a drone carrying spheres inside a container. I also have a turbulance force moving in order to give the effect of levitating balls. There is no gravity in the scene. The idea is to ...
0
votes
1answer
12 views

Rigid Body Unbalanced Weights

I have not seen a post about this on BSE yet. Is there a way to create a rigid body simulation with two connected objects with different weights? Think of a hammer or a mace. Naturally, the heaviest ...
2
votes
0answers
55 views

How to animate small fire flames

I am just starting with blender. So, sorry if my question seems dumb. I saw some videos on quick animations and I am amazed with it. However, fire animation seems not to work when I scale the domain ...
3
votes
1answer
22 views

Animate dog character with soft body physics “jello” legs?

I have a model of a dog character (unrigged) that i want to animate with legs that procedurally react to the keyframed animation of the torso. Essentially behaving like a marionette, with the main ...
0
votes
0answers
19 views

How to limit the force field only on a specified area?

I want to apply a force only on particles in a specified area, so they go upwards in their path (see pictures). I tried to use a wind force field, but that seems to affect all particles no matter ...
3
votes
2answers
2k views

Enable Collision for multiple objects

Please note that the answers to other questions have not applied to this problem. I have a large number of shards created in the Fracture Modifier that I've converted to Objects. I want all of these ...
0
votes
0answers
32 views

Realistic Barley Grains on a Potato Pc

I just started on blender i am curantly trying to create a realistic beer/brewerie themed scene. I have already made a pretty good looking beer and now i want to create a bowl with the ingredients of ...
0
votes
0answers
25 views

How can I make an object solid in walk navigation mode?

I am "working" on a building project and what I want to do is to make walls (objects) solid so when I am in walk navigation mode not be able to walk through them. Any idea how can I do that?
1
vote
1answer
210 views

ReBake a fluid Simulation?

Following problem: I have a fluid animation which works after being baked. Now I change some detail, the inflow velocity or the inflow type for example, but when I hit the bake button again the ...
0
votes
0answers
16 views

Rigid Body in animation

I am trying to make a simple animation using Rigid body. I have a bottle and capsules, the capsules fill the bottle and the bottle falls, scattering the capsules. The problem is that as the bottle ...
2
votes
1answer
49 views

How to make a fluid simulation start from the middle of an animation and make the domain not visible until that point?

Using blender 2.9, I am trying to simulate water filling a vessel. I watched to some videos, like this one: https://www.youtube.com/watch?v=1YKDUPEZc1g&t=321s. Note that in this video, the ...
0
votes
0answers
23 views

Smoke and Fire simulations problem

So, I've tried and completed at least 10 different tutorials for Smoke and Fire simulations. Some were for 2.8, some for 2.83, and now for 2.9 and so on. I replicate every single step the tutorial ...
0
votes
1answer
79 views

What physics make an object not pass through another, if it's the “Child Of”?

I am trying to add physics to the Lego Figure I have modeled. The body of the figure, has holes on each side for the arm, just like real Lego Figures do. I know I can attach the arm to the body, by ...
1
vote
1answer
31 views

No animation after 250th frame [duplicate]

Iam new to blender. Iam making a dominoes falling animation. I have set start frame 1 and end frame 350 but after 250th frame it stops falling and there is no animation happening
0
votes
1answer
361 views

Rendered soft body physics animation doesn't match viewport

Using blender 2.82a, I'm stuck in this situation: my soft body physics animation is right in the viewport, but when I render the whole animation the result is not the expected one and it seems not ...
3
votes
1answer
22 views

Is there a way to see more physics setting for an object?

I was following a tutorial oh how to make a basic water simulation then I got to the part where I enable the domain's mesh and couldn't find the "mesh" checkbox anywhere. I seem to be ...
2
votes
0answers
25 views

Whats the best way to simulate/animate mesh/cartoon hair in 2.9?

I plan on doing full-blown anime style animations and do to this I need something flexible, for flying, running, falling, underwater, space, etc, scenes, but I have to have full control. I'm thinking ...
0
votes
0answers
25 views

Can't find smoke and color mapping options for Fluid Simulation Blender 2.9

I am trying to make an explosion with Blender Mantaflow, but I do not see the following in the Properties view in the Physics Properties: Color Mapping Smoke I am using Blender 2.91. Can you help me ...

1
2 3 4 5
33