Questions tagged [collision]

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How to make baggy clothes using Cloth Sewing, Cloth Modifier and Object Collision?

My question is two fold: 1) How to make baggy clothes in blender using Cloth Sewing, Cloth Modifier and Object Collision? In all my attempts the cloth : a) Fell down into the never ending abyss ...
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15 views

Setting up emitter to text and morphing to another text?

I am wanting to emit particles to form a text and then for the text to morph into another text, and to do it in Blender 2.81. Are there any experts out there with the know how to accomplish this. I am ...
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1answer
28 views

Making an object heavier on one side to afect the fall of an object with ridgid body (active) applied to it

I want to make an object (which has rigid body_active applied to it) to be affected by gravity more on one side, as it falls to the ground. How can this be done?
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Make hair bones collide with parent mesh?

I’ve followed this tutorial, which is excessively in depth. Essentially it is a line of verts given a cloth modifier, an empty parented to each vert, and bones between each set of verts with IK set to ...
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1answer
15 views

Make the wall of a UV sphere collide-able in untiy?

i followed the tutorial in this answer to make the hemisphere. but when i added it to unity and generated the colliders , the BASE of the sphere had a collider on it. (imagine if hemisphere had like a ...
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75 views

Making Box Colliders in Blender instead of Unity

Good evening community, It's more of an asking for an advice than actually a question regarding to game design with blender and Unity. So I've basically created a level in blender (3D) by mainly using ...
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1answer
19 views

Flag Physics seems fine when on the viewport but looks messed up when rendered

I'm fairly new to blender and I've come across this issue. My flag with wind physics seems fine when I animate it on my view port using collision physics. Here's a sample: https://imgur.com/qmJvESK ...
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50 views

How to get particles to move with object. Works in 2.79 not in 2.8 possible bug?

Seems like a pretty straightforward question. I am using blender 2.8, and had trouble for days trying to figure out why my particles escape my collision object once the collision object begins a ...
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2answers
75 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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1answer
121 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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53 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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32 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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23 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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29 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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94 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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16 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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10 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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111 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
37 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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15 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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22 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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0answers
25 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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2answers
98 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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117 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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35 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
1k 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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21 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
112 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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30 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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94 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
55 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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0answers
131 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
458 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
135 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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60 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
934 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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64 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
113 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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75 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
229 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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122 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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28 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
90 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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11 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
40 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
46 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
71 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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1answer
86 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
468 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
34 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 ...