Questions tagged [collision]

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Why the sewing is not perfect

The "Max sewing force" value has been increased for correct sewing, but is still fully adhering to the object and not being re-sewing. The same problem still occurs, although I have increased the "...
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21 views

How do I keep Hair particles from going through separate mesh? (eye's to be exact)

I've been trying to build a character covered in hair(think Sully from monsters inc.) and i want to add eyes to the character, but the hair particles are coming through the eyes. I've tried making the ...
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1answer
18 views

Selective collision with particles

I have two collision objects and two particle systems. I want P1 to interact with collision 1 P2 to interact with collision 2 Can you help me to achieve that ? Now both are interacting with ...
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2answers
26 views

Simple Particle Needs

So I've been in animation a long time but am new'ish to Blender. Two things I cannot seem to do are fairly simple to code: Firstly, I need particles to emit particles when they hit a surface. ...
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33 views

How to pin cloth object to another object

I'm trying to pin a cloth object to another object. I tried to fix it through the Vertex group. However, because the two objects are dissimilar objects, cannot try to pin them together into the same ...
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1answer
30 views

Animate Collision On and Off

I have an object that a cloth is colliding with, and I want the collision to be disabled in the middle of the animation. However, I cannot just turn off object Collisions on the cloth, because there ...
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1answer
118 views

How to twist a cloth?

I am starting to get pretty stressed and sad. This is for a mobile game I have accepted a project for and if can't solve this I might have to drop this project which will cost me a bit. So if you ...
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1answer
34 views

Setting up collision for large-scale model in Unreal Engine

I was creating a large scene for use in the Unreal Engine, but I need proper collision physics and since Unreal Engine's collisions aren't suitable for large-scale objects, I have no idea how to go ...
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27 views

Particles system with negative frame start don't work with collider?

I noticed with particles system negative frame start, the particles are not simulated with collider during the negative frames. The bake work, but particles are affected by collider only after frame 0....
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14 views

Why do the origins of Explosion particles change when I render the image?

When I look at the Explosion particles in the view port they are exactly where I want them (Top picture), however when I render the image the origins of the particles seem to change as in the lower ...
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21 views

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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14 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
17 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
12 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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46 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
16 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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32 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
49 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
48 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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31 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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25 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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22 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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23 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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52 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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9 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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83 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
27 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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14 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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11 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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22 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
38 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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52 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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27 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
565 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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17 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
76 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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27 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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76 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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52 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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99 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
290 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
69 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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53 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
471 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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42 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
78 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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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
145 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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