Questions tagged [collision]

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1answer
18 views

particle collision is weird whith sphere object

I have a problem with a particle system and my sphere objects deep half way through my collision object, the screenshot is here:
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0answers
9 views

Cloth falls inside object rather than on top

As you can see in the picture, the blanket folds inside of the top mattress when it's supposed to fall on top. The blanket starts outside of the perimeter of the mattress but gets sucked in for some ...
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7 views

v-hacd blender 2.8 with physics engine

I am trying to get to work with the V-HACD add-on on Blender 2.8. While the convex hulls decomposition of the mesh works well, I was wondering how to make it work with the physics engine to animate ...
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21 views

Roulette Simulation Rigid Body

I am currently making an roulette simulation. I have 4 main objects: the bowl, the sphere, the spinner in the middle and the separators which separate the numbers (I don't know the correct name for ...
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19 views

Particles not following movement of collision object

Been trying to wrap my head around this for the whole morning. I have a snowglobe, and the hand throws it in the air. My particles collide with collision object (duplicated the glass globe), right up ...
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19 views

One-Way collision / One-Sided collider

I try to fill up my mesh with particles(molecular addon) falling from top. What I would need is an one-way collision to "trap" the objects inside the mesh and form the shape if something like this is ...
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25 views

Blener 2.8, how to make a rigid object hang from a cloth simulation?

The desired end result is that the necklace is cloth-like, and the star-shaped charm is rigid. Both react realistically to the environment as they hang around the character's neck. Thus far, I can get ...
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13 views

Modify location data for physics animated object

I have a "coin" standing on a "table" which is being spun by the use of two projectiles, hitting opposite edges of the "coin," like the action fingers would have when spinning a real coin. The "coin" ...
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6 views

How to do random rigid body motion with location constraints?

I want three objects (say 3 UV spheres) to move randomly in a plane. Saw some solution using force fields - force, turbulence, and vortex. But can't exactly figure out how.
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21 views

The cloth collision in 2.8 doesn't collide

so basically I am trying to make cloth collision in new blender, in the old one I never had a real problem, making some table cloths and so on, always worked. But here comes the problem, I tried to ...
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1answer
20 views

PopCorn Particle Background

Anyone have an idea of how to make popcorn fill up my screen using practices, or got some video that would help me out, thanks! I am trying right now, but they keep jumping up and down and not staying ...
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11 views

Algorithms used in Collision detection, Rigid Body Simulation

I had a school project done in Blender using Rigid Body simulation where obviously collision detection plays a huge role and I want to be able to explain in better detail how it all works in the ...
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8 views

Collision modifier not rendering and transparency issues in eevee

I have created a spaceship shield effect in which I lasers (particle system) striking a dynamic paint shield. I have set a collision modifier in which the particles die on collision with the shield. ...
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20 views

Human figure moving arms through body

I have imported a MakeHuman figure and I am trying to implement a series of arms and legs movements under python control ...
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1answer
9 views

Modify Boid collision distance with hard boundary - v2.80

Hello hello Blender community! This is the first question I'm posting, similar ones have been asked before but I was unable to get something working from the answers/comments on the questions most ...
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0answers
43 views

Weird cloth behavior: why does my cloth diverge on collision?

Earlier I've animated simple collision with a cloth-modifier. (I've compressed it to a 2MB mp4, but I don't know how to upload it). It shows a face moving along a path through a (pinned) cloth, so ...
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22 views

Particles hit mesh in rendered static frame but go through same frame when rendered as animation

I have particles falling down from an emitter; they are supposed to hit the floor (plane mesh) and pile up there. This works perfectly in the viewport and when I render just a single frame but when I ...
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1answer
104 views

Blender 2.8 Clothing collision with other object overlapping

thank you in advance for answering. As the tittle says, I'm having problems with cloth collision. There's the cloth object, then a mesh object for the shirt and a mesh for the body. The body ...
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14 views

Collision object POPS through cloth?

Trying to recreate this object. For the vinyl insert, I created a cloth simulation and two collision objects: a pipe on the bottom and an animated downward plug that would push the cloth into itself....
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1answer
67 views

How to make objects not pass through each other?

I have a field with plants, and some plant's leaves are cross over with each other. How do I add collision/or is there any other way to solve this problem? I need that effect, cause I'm creating a ...
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23 views

Physics - curve rope colliding with object intersect problem problem

My goal is to create a rope that falls onto a cylinder object and the ground. I created a path which I subdivided and set the bevel property as an object (4 circles) which I twisted around to create a ...
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44 views

how to stop particles from clipping through object?

I have a particle system (grass) that is poking through my object(rock). I turned collision on, on the rock but the particles are still poking through.
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0answers
46 views

How do I make a squeezed balloon?

Is there a scientific way to have a balloon squeezed as if between two planes (or in a vise)? In other words, have the sphere maintain its volume while it is deformed between two parallel planes? [...
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45 views

Particles won't collide with object?

I have a particle system in 2.8 that emits metaballs, and Ive added Collision to the object I want to collide with. Settings on the collision have friction at 1. Ive followed tutorials, however my ...
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2answers
116 views

Slow Viewport Rendering: Bad Settings or Underequipped CPU?

Question Dear all, I'm trying to make a simulation in which Suzanne moves in a straight line through a piece of rubber cloth. Getting the settings of the cloth modifier right is quite hard due to ...
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1answer
41 views

Objects not touching in collision

I'm a total noob - and I'm doing a soft body simulation - just a ball bouncing. The ball does bounce, but it is not actually touching the collision surface, it is bouncing slightly above. It's like ...
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0answers
41 views

Soft Body and Hair collison in 2.8 goes haywire

When my fuzzy ball touches a cube with collision enabled the hairs go crazy. How do I make the hair particles not go crazy. Please check the attached blend file.
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1answer
181 views

Making particles collide with each other? Possible? (2.8)

So I have made what is essentially an asteroid field. I did this by making half a dozen asteroid models, and then making a large cube with a couple of ‘volume’ emitters that run for a single frame. ...
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22 views

how to control hair particles under a hat

I with to animate a woman character, she is wearing a hat. I struggle to understand how I can control the hair when I also apply hair dynamics, i.e. so it doesn't cross the hat or go obove it. for the ...
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1answer
54 views

Bouncing ball deflates when hitting surface

Plane has a collision. The ball has a soft body. Bending of 5. turned goal off. I baked and when I animated I get the image attached, How do I keep the shape of the ball normal with a minor bending ...
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0answers
38 views

Cloth vibrating with object collision turned on?

On the character rig I'm creating for an animation, I have a cape, which is a piece of cloth which is solidified to give it thickness. However, I want it to collide with the torso, head, and arms of ...
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1answer
101 views

Animation with Physics (Cloth | Collision)

Problem How can I make the fabric stop exactly where the tube thickens and prevent it from continuing its free fall to infinity and beyond Example I want the fabric to stop exactly when it reaches ...
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0answers
59 views

How to make a floor with collisions, so my character can walk on it

I have made a funky T-rex and am trying to better my animations (fifth week on Blender) but I'm having trouble with the walk cycle and I think it would look better if I could make it so that the T-rex'...
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0answers
20 views

Smoke Collision causes Aliasing with Cylinder

My scene is comprised of a smoke domain emitting upwards to a default cylinder. When the smoke collides with the cylinder, there is a noticeable "stepping" or aliasing around the cylinder, as seen ...
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0answers
51 views

How can I make my cloth sim show tight folds?

I'm trying to achieve visuals like the following: Unfortunately, this is the best I've got so far... I'm using the 'pinning with hooks' method seen halfway down this page - I'd let the cloth drape ...
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0answers
8 views

Hair Boundries / collision effect 2 seperate objects

Is it possible to create boundaries for hair particles. For example I created a flower pot and put a plane inside it with a hair particle system for some curly type grass effect. Can I make the pot ...
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0answers
27 views

Why is my cloth colliding so weirdly?

I am trying to simulate cloth on top of an umbrella, that's blowing in the wind. Right now I'm already struggeling with the cloth clipping through the base of the umbrella. I tried isolating a single ...
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0answers
20 views

Impact Forces in Blender Game Engine

I am using the blender game engine to run drop test physics simulations and I was wondering if there is a way to collect the force and impact data from the collision. Maybe using "appliedImpulse"? I ...
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1answer
42 views

How to make an object only collides with the terrain?

I have a question to the the collision in the Blender Game Engine. I made an character (a simple sphere). This character is on layer 2. A empty object is on layer 1. This empty spawns every 5 seconds ...
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46 views

Make Path Dangle and Collide for hair

I have hair particles following a path. This is for a lengthy animation project so chose to do this to make it easier than combing hair back to where is belongs. Picture below. I want one end of the ...
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1answer
66 views

Blender Collision Simulation Data

Is it possible to access data from a collision, such as point of collision and impact force? I am trying to simulate a "drop test" in Blender and cannot figure out how to access the information. As of ...
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3answers
107 views

Soft body not colliding with each other

I am trying to make an animation using soft bodies, but the problem is that they are passing through each other. I have turned on Collision in the physics panel. Thanks. Blend File
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0answers
25 views

Intersecting problem with rigid bodies

There is a mechanism shown in the figure_1; a rotating gear interacts with a grip. There is no problem (figure_2) until I change the grip shape with the same setting as previous, where the model ...
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1answer
57 views

Complex Collision Boxes

I'm trying to get a ball to go through in between the cup gear things shown in the screenshot below. It seems that the collision box does not consider the cups. Yes, the ball fits and they are ...
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0answers
16 views

How do I influence the distance particles have to a collision object?

I have a cube, and a particle mesh inside the cube which emmits boid particles. However the particles don't bounce off the inside wall of the cube but keep several cm distance to it. I would like ...
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0answers
149 views

How to create a soft body simulation like this…?

I'm making the switch from Cinema 4D to Blender and I've got some problems with the soft-body simulation. I want to create an image like this: How do I achieve this look? Let's say I have a cube and ...
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0answers
25 views

Boid Particles come out above the mesh

I'm trying to keep the boid particles confined in between the double wall of the house (behold image) but they keep coming out above or next to the plane itself. When I move the plane away from the ...
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0answers
49 views

How to animate spiral cutting / milling?

I have a circular saw cutter in a tube. The cutter is supposed to cut a gap into the metal tube by cutting in a spiral motion. Initially I wanted to make it fancy and show the material that is cut ...
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0answers
24 views

“Whip” falling through handle. Collision + Soft Body

I have a four bezier Circle tied to a path that twists to form a rope and a separate object of the handle. The rope runs in the middle of it. I've changed ball weight etc and added the handle as a ...
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1answer
61 views

Ranining Cubes to form shape

This is the .blend file I'm working with I created this model with a processing sketch that translated colors into volumes. Now I'd like to have a rain of cubes, having the cubes to land in their ...