Questions tagged [collision]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
0
votes
1answer
14 views

Cloth sewing problem with rigged 3d-model

I have a 3D-human model with initial pose like this: I want to rig it then change it to T-pose, by following the YouTube tutorial here. After I change it to T-pose as below: Then I added a cloth ...
1
vote
1answer
48 views

How to make 2 cubes with 'child of' faces crash, lose cube parent, and faces spray around and drop on the floor [duplicate]

it seems i have to re-ask my question.. delete parent halfway animation, keep position and more i have two cubes flying around, they are rigid bodies and have cube faces that are 'child of'. When the ...
0
votes
1answer
26 views

How to animate an explosion in a certain direction? Why is my shatter going in the opposite direction?

Problem Hi. I animated a ball going through a window. The window shatters in the direction the ball comes from, but I expect it to shatter the direction the ball is going to. In ...
0
votes
0answers
7 views

Why are cloth and collision simulations slowing downing down the animation when they are disabled?

After deleting 4 clothes with show in viewport turned off, the frame rate doubled. Also after removing a disabled collision modifier, the frame rate increased by a frame per second. This doesn't make ...
0
votes
0answers
18 views

Why is Cloth simulation crashing through object on one but not the other?

No matter what I try, the cloth simulation always crashes through the model on the left (see image), but not on the right. The Torus is SDx2 and scale applied and I've used the same settings on the ...
2
votes
1answer
17 views

Liquid Stabilisation?

After recently starting liquid simulation, I wanted to know how to stabilise the liquid after it is poured into another object(collision object eg. cup). No matter how many extra frames I give it, ...
0
votes
0answers
16 views

How to shoot Rays from all 4 corners of Camera

My task is to detect how better a 3d model fits the camera view. The model is always located at he center, while the camera can be placed anywhere. The model should not be outside the view of camera. ...
0
votes
0answers
14 views

How can I reveal intersections in my mesh?

I have a design similar to tank tracks. Some of the clearances are pretty low and I want to make sure that there are no collisions. Are there any tools to reveal colliding points.. where two separate ...
0
votes
1answer
20 views

Rigid Body Particles Falling to Outline Object (negative space typography)

I would like to use an invisible text mesh to force rigid body particles to fall around it, thereby creating the outline of the word in the negative space. I'm using larger and irregularly shaped ...
0
votes
0answers
12 views

Can I animate a collision object into a flow geometry in fluid sim?

I have an object that is a collision object in my scene, however halfway through my animation I was wondering if there's a way to turn the object into a flow geometry object without baking my scene ...
1
vote
1answer
39 views

Cloth still going through with self collisions on

I'm trying to add cloth simulation a skirt that has 2 combined meshes in it, so I needed to use self collision so it wouldn't collide, but it still ends up colliding together, and then it ruins the ...
0
votes
2answers
33 views

How to scale active rigid bodies during simulation in blender

I am new to blender simulations and I am trying to create a simulation of a ball (active rigid body) falling freely and colliding with bunch of other objects (passive rigid bodies). During the ...
1
vote
1answer
34 views

Active rigid bodies not colliding with passive ones

I am trying to do pwnisher's community challenge. I downloaded base animation template (Blender). In blender the animation is playing just fine but when I add new objects for collision (rigid body : ...
0
votes
0answers
22 views

why collision is not working?

I am a total beginner in blender and I am trying to create a sofa and when I am trying to fall my blanket on the sofa edge even after using collision it's still clipping and I don't know what to do. ...
0
votes
0answers
17 views

Vroid clothes Blender

I'm having a problem in using the Cloth Simulation in my VROID character. I followed this tutorial: https://www.youtube.com/watch?v=c7V7QmS3RlI&t=588s I Did everything as in that video but it ...
1
vote
1answer
33 views

How can I recreate this free floating/no gravity simulation?

I'm looking to create a very short animation of a number of objects in a kind of zero gravity/free floating situation like this... the objects need to collide and not pass through each other. Does ...
0
votes
0answers
32 views

Drop rigid body onto soft body

I just asked this question and it was closed as being a duplicate of this question. However I cannot get the solution from that previous question to work (explain in more detail below). Also I don't ...
0
votes
1answer
14 views

Particles collision margin/padding

I am making a simulation with boids particles inside a mesh (I have applied collision physics to the mesh, inverted the normals and applied all transformations) and for some reason, the particles do ...
0
votes
1answer
21 views

How to restrict a bone tail from coming too close to some region?

So I have the following character. The shirt and shorts use cloth simulation. I need to load different poses programatically on it and take renders. However sometimes it happens that one a given pose ...
0
votes
0answers
17 views

How to apply self-collision to a rigged body?

So I have the a rigged body character. I would like to have some sort of collision constraint such that the following wont happen. As it can be seen, the selected bone controls the position of the ...
1
vote
1answer
133 views

Geometry Nodes Collisons

I have a model that's made up of geometry nodes. They're intersecting. I want them to collide. What do I need to add to the node tree to make them collide? I tried following this, but I don't see a ...
1
vote
0answers
16 views

How to change texture when two meshes intersect?

I want to detect the intersection of two meshes, and when intersect, one of them change the texture, do you know how to do? Maybe python script? Thanks a lot.
2
votes
0answers
20 views

Can the cloth simulation be made to conserve momentum and guarantee equal and opposite reactions?

The "Collision" and "Cloth" settings have to be enabled separately from each other for cloths that interact with each other. This makes it seem like they will also be evaluated ...
8
votes
2answers
653 views

How can I make string tighten around a soft object

I've used blender for a couple months, my knowledge is limited to basic modelling. I'm trying to get the effect of string being tied around a soft object. Like this string around my finger. Not sure ...
0
votes
0answers
23 views

What is physics field absorption with a collision object for particles?

I have read this information https://docs.blender.org/manual/en/2.90/physics/collision.html#bpy-types-collisionsettings Does anyone have a better explanation in a few paragraphs? The question arises ...
0
votes
0answers
15 views

Weird soft body collision behavior

I'm trying a simple collision between a soft body sphere, and a collision sphere that moves into it. The soft body sphere's vertex are jumping inside the collision sphere, before contact. Is it a ...
0
votes
0answers
15 views

Is there a different way to enable collisions?

I've added physics to an mmd model (long story short it's the physics built into the add-on) so I didn't use any of blender's internal physics but some parts of the model's dress is slightly cutting ...
1
vote
0answers
37 views

Fluid arround an effector

I'm trying to do a fluid simulation of a viscous liquid (not much, Diffusion exponent 4), but even with a Resolution Domain of 300 i don't get the fluid touching a steering stick (effector with a ...
1
vote
1answer
20 views

Blender Rigid Body Physics issue

I want some balls to fall into holes with gravity but the balls pass without falling into the holes.
0
votes
1answer
51 views

How to properly set up physics with door hinge?

I am a newbie with blender trying to create a simple animation where a safe falls on the floor, making its door open when it lands. I tried to set this up by making the cube and the door active rigid ...
0
votes
0answers
23 views

Blender Rose Cloth Sim Issues

I am trying to follow this tutorial for creating a cloth simulated rose: https://youtu.be/xKIoAorI2MA?t=59 My issue is that when I try and simulate my mesh the petals all seem too close to each other ...
1
vote
0answers
32 views

water doesn't flow inside closed sphere

I checked many tutorials and guides on how domain and the liquid engine works. I also troubleshooted all the common problems why water does not flow and after hours of researching I found a fix myself ...
0
votes
1answer
26 views

My Cloth Sim with Pressure is Acting very Unusually

So I've been making this scene with some balloons. They have been absolutely fine until now. The sim plays through absolutely fine (sort of) and then the 2nd time around, even if I bake the sim, it ...
0
votes
1answer
19 views

Weird distortions when rigged object collides with itself

I've got this shape that I've rigged that I want to grow up and fold out like a branch. But whenever it collides with itself I get what looks like faces forming between them. Why does this happen and ...
1
vote
1answer
22 views

Adjust physical bounce of the emitter particles

I have set collisions for the object, but when the particles collide and bounce back, they look very rigid: how can I make it look more natural (like sparks)? Image (click for higher resolution) ...
1
vote
1answer
44 views

Collision not working after moving armature/setting different pose

I have set up low-poly collision objects for the beard and the body. Both are parented to the armature with automatic weights and in the rest pose the collision is working nicely: However, after ...
5
votes
1answer
275 views

Replace object with another on collision

I'm trying to make a grass cutting animation. A blade rotates and when it collides with grass, I want to replace the grass object with the sliced variant. I tried the particle system with 'die on hit' ...
0
votes
1answer
154 views

Having an issue with mantaflow fluid simulation with flow object inside of another object

So I am working on a model currently of a banana being cut open that I am trying to make have blood come out when it's cut. I have animated the object being cut by swapping out the whole object for ...
0
votes
0answers
30 views

Collision not working for only one object

I'm trying to make the blanket in the Couch Tutorial (Blender Guru, How to Make a Couch, Part 8), but although every part of my sofa has "Collision" turned on, the side of the sofa is not ...
1
vote
1answer
30 views

Object A make Object B expand on ingoing and then shrink on outgoing

I like to create a animation where a "bullet-like-objekt" hits an object ("cube") and then the object shall expand from the bullet. And when the bullet goes through the object ...
3
votes
2answers
128 views

Make particles stay on Plane

I have created a particle effect that is influenced by a vortex. Now I want to create a plane that is the parent of both of these object. That way this plane controls the orientation of the emitter ...
0
votes
1answer
94 views

How to avoid tube overlap in rigid body simulation

I created two tubes by Bezier curves and add sodify modifier to them with a small thickness. And add rigid body and collision to the tubes. I check the normals, upscale the steps per second and ...
2
votes
1answer
52 views

Improved explosion: possible to nest smoke domains and apply them to mutually exclusive emitters?

I've been following an explosion tutorial. Blender's quick smoke results are very impressive but I'm trying to mimic artillery explosions I've seen on youtube in several places. In particular, I've ...
0
votes
0answers
15 views

Hair Dynamic Issue: Animated Mesh

I've got an issue in playing the walkcycle animation of a full-body-hair-particle-model. I tried to bake it without collision but then the particle system stuck somehow and doens't move properly to ...
0
votes
0answers
12 views

Dynamic Hair not colliding with mesh

I have been working on simulating hair and cloth on this model. The Headscarf in the image is a cloth with collision physics and works perfectly. The hair have dynamics enabled but they pass through ...
1
vote
1answer
71 views

Having a collision object. How to kill particles from a defined source?

I have two independent objects (P1, P2) with particle system on each of them. I have another object (C1) with collision and option kill particles enabled. Is there a way to configure C1 so that it ...
0
votes
0answers
39 views

How to make a decent hair scalp so that the hair from it does not go through body?

Method I: make a scalp and generate hair from the scalp. But the problem is that the hair will go through the body. And enabling Deflect Emitter or Collision on the body does not solve this problem. ...
0
votes
1answer
29 views

Tube Deformation Animation with Pill Passing Through

I'm making a medical video featuring a robotic pill passing through the human digestive tract. The animation features the pill sliding down a cross-section of the esophagus and small intestine. I'm ...
0
votes
1answer
57 views

Show Convex Hull Collision in the viewport

Like in the title, is there any way I can see the Convex Hull mesh when I enable the rigid body on an object? I can see sphere, box, cone and all the primitives, but convex hull nada. Seems like quite ...
0
votes
0answers
10 views

Trouble with part of fluid sim disappearing on flat surfaces

I have a fairly simple problem with a fluid sim that I haven’t seen posted anywhere else. So I have a fluid draining out of a scene revealing a flat object with collision to avoid clipping. The fluid ...

1
2 3 4 5
7