Questions tagged [collision]

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Collision physics. Rotating object constantly hitting coffee beans in a grinder or roaster

I would like to make a collision with a spinning object in a coffee roaster/grinder and the coffe beans being roasted/grinded. I have tried with rigid body physics and collision physics, without any ...
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How to Copy a settings from a Cloth object to multiple Cloths objects (e.g. Physics Properties > Cloth > Object Collisions > Distance)

I have a scene with multiple cloths objects. I want to modify something in physics properties to all others objects (same settings for Object Collisions>Distance); Something similar with "Copy ...
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Particles too fast for dynamic painting

I am trying to run a rain simulation where the rain drops (particles) dynamically paint the floor based on this tutorial https://www.youtube.com/watch?v=35bbyAJodEQ (for reference). Setting all that ...
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1answer
30 views

Cloth collisions with another cloth

I am trying to create a scene where a cloth will collide with another cloth; The error is where the clothes are interacting and after that is going wrong.... I have attached here the blender project: ...
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How can we make an solid object being squashed by another, turning the first one into fluid?

everyone. My issue is that I don't know how to make an object splatter another. I have a text appearing on screen like so. I have it recovered by a second text in the same manner. I would love for the ...
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21 views

Recalculate kinematics to avoid collisions with bones

I've a very simple question but I haven't found the solution anywhere. Let's see if you guys can give me a hand :slight_smile: I would like to know if in blender it's possible to avoid collisions (for ...
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17 views

Applying Collision to Clothes With Armature

So I've tried searching around, but everything seems to go back to the Clothes physics. I have a cape that's attached to an armature and that is connected to a body armature. What I'm trying to do is ...
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24 views

Soft body not staying contained in rigid body

I am fairly new to all this but I have been trying to do a motion graphic of a (balloon-like) soft body inflating and staying contained in a rigid body (cage). I have set the inside sphere to 'soft ...
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40 views

Fluid sim not colliding with effector

Okay, a pretty simple problem, you can see the fluid sim is passing through my effector. How do I fix that? So far I've tried flipping the normals, adding and applying a solidify modifier, and ...
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Dynamic Paint Ignoring Part of Mesh

Trying to make raindrops dripping across the hood of a car. There are particles colliding and sliding along the hood. The particles are a Dynamic Paint Brush and the hood is a canvas. This is what ...
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32 views

How to make particles not go partially through plane?

I have a bunch of cards shooting out of a box with an emitter. I have rigid and collision on the collection of cards and the plane but when the cards hit the plane they go through it about halfway. ...
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32 views

Is it possible to make a displace modifier collide with other objects? if not, is there a way to make the food not go through the cooking pot?

I want to make the animation of the displacement to collide with the cooking pot, I already set the two objects with rigid body physics but it just goes through
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1answer
18 views

Soft Bodies Merge Together During Animation

I am trying to get some soft body balls to tumble around in a rotating cube (like a square washing machine). Each time I try and animate, it's like all the soft bodies merge together into one blob. I'...
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23 views

Soft bodies not colliding with each other on Blender 2.9

I have created 2 spheres, with applying soft body and collision physics, both with the same settings, created a collision floor, located the 2 spheres on above the other floating in the air. When I ...
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33 views

Cloth is colliding with some objects but not all

I’m making a bed with two characters in it and now I want to throw a blanket over them. My problem is that I can’t understand when the blanket wants to collide with certain objects and when it doesn't....
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38 views

why particle system doesn't collision in blend 2.9

can you help me?? I have Three Objects.. The first is plane object with particle System with velocity 0.1, frame started 1.000, frame ended 80.000 and life times is 50.000. the second, i have sphere ...
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Volume Loss of fluid simulation in tilting Object which is defined as an effector (collision) Blender 2.90.1

I have the following problem. I have a casting ladle as an effector with collision setting. I beginn with fluid inside the ladle as a geometry with the inner shape of it. This works pretty smooth but ...
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13 views

how to add collision to a shaked object?

I used a "shake" add-on for my 3D receiver (phone) the problem is that I can't figure out how to prevent it from passing through the body of the phone? (these are 2 separate obj) add ...
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27 views

Can you make particles affect smoke?

I would like to have my smoke being moved by particles flying through the smoke domain. Regular objects work with fluid physics enabled and set to effector -> collision type. The smoke gets dragged ...
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17 views

collision doesn't work in render (it works well when I play a preview before rendering!) [duplicate]

I'm trying to make some balls fall on a cube and not to fall through it. everything works well after I set the stickiness to 10, but in the render result the balls go though the cube (I'm using ...
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42 views

Is it possible to only show particles that collided and stick to an object?

(version 2.80) I would like to only show particles that have collided (and stick) to some object. I do not want to show the particles that are still travelling to an object. I am thinking this can be ...
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1answer
29 views

Keyframed Objects Clipping Through Each Other

I am very new to Blender and have made a scene where a mannequin (animated and downloaded from mixamo) is falling through a tunnel. A basic falling animation has been applied to the mannequin via ...
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1answer
49 views

Conveyor belt object fall through problem

I watched a tutorial video and tried to learn how to make a conveyor belt. Everything went well until I put a cube on the belt. Somehow, the cube just fell through the belt. I googled a lot even ...
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1answer
58 views

Rigid body physics only applied correctly in edit mode

I'm confronted with a weird problem in blender's rigid body physics, where the simulation is only applied correctly if the active objects are in edit mode. My test scene: one simple cube and two ...
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1answer
17 views

The cloth isn't on the character when enabling cloth stimulation

By the picture of character you can notice that I'm not an expert in blender, so the issential question i have is when enabling cloth stimulation for the shirt, it happens to appear somewhere else, ...
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18 views

Basic cuboid collision mesh not lining up with cuboid, bug?

I've tried to just make a simple staircase out of separate rigid body cuboids. I've made this staircase by taking a cuboid, cutting off faces to make it a staircase shape, then filling in the faces ...
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1answer
25 views

Diffuse (cos(theta) or Random) Scattering of Particle Collisions

I'm trying to get particles to bounce off a surface in a scattered fashion. Currently the collisions have the particles bouncing normally, but is there a way to have them bounce off randomly? Do I ...
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2answers
56 views

particles sit above collision object when “size deflect” is active

I have a basic particle system with a cube emitter, uv sphere particles, and a plane as the ground with "collision" on. when running the sim, particles sit half way in the floor. If "...
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5 views

Collision between emitted particles and hair particles

I have a plane emitting spheres and I want to block them with object spawned as hair particles on a plane. What is the process to do that?
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35 views

Active rigid object not following the animation movement of other rigid object

I've created a conveyor belt out of single links using an Array modifier and then a curve modifier to get a conveyor shape. Additionally I've added a keyframe animation on the Y coordinate with a ...
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1answer
31 views

Unexpected behaviour on soft body collisions

I'm trying to get two soft bodies to collide in a zero gravity environment. The way I'm trying to do this is by having soft body one and two close to eachother, and having a third rigid body collide ...
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How do I make coat tails not pass through my models leg

I have a character model who wears a long coat and I'm using wiggle bones to animate them, the problem is that the coat passes through the leg o the model. Is there any way to correct this?
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1answer
27 views

Texture Based Collision

I'm looking to add collisions to a surface which simulate the rough surface of a wall. Since subdividing for a displacement modifier would be a little too taxing on my computer, I was wondering if ...
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10 views

Something wrong with cloth simulation

I pinned a group of vertexes that don't need to have simulation and add colision to body and belt. You can turn on animation in blend file below to see what happens next... don't know how to deskribe ...
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2answers
86 views

Rigid bodies keep bouncing

Can anyone help with the following: I have a rotating frame with cilinders. the cilinders keep bouncing. Also, when there are more cilinders they will bounce even more, and even fly out of the frame. ...
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1answer
36 views

Rigid Body Physics (Collisions)

I am using Rigid Body Physics in Blender 2.83 to have some cubes fall into a bowl. It should be quite simple, but as you can see the result is grossly over-dramatic. What am I doing wrong, or not ...
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14 views

Best practice for moving soft bodies that collide

I'm experimenting with a scene that has a couple of soft bodies that collide. The soft bodies will be moving along a smooth plane. They will have some starting momentum, collide at some point and ...
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1answer
62 views

Trampoline like effect using cloth modifier?

Been trying a lot of methods to simulate a ball falling on a trampoline or elastic kinda substance( square plane) with its corners pinned but haven't had any sucess yet. Really specific about the ...
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1answer
75 views

How can i drop my mesh on floor with rigid body

I have a floor and mesh (pen). Im dropping the pen on the floor. Floor is set to passive and pen to active. Added collision-on to floor. When the pen is not dropping on the floor. Its flickering in ...
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18 views

How do you extend the life of a collision motor?

The object rotates with the string wrapping around it - but it ends at frame 250? How do you extend the collision time to end at say, frame 350? So the string wraps around more?
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47 views

Realistic Nature (Meadow)

Hey guys i'm working on a nature scene and test a lot of ideas. I came to a point where a bigger plant would overgrow a way smaller one. Like a dandelion plant would do with normal gras. Everything is ...
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36 views

Cloth collision on a rigged character

Can someone please help me wrap my head around this. I have a character that is rigged and walking. He is wearing a trench coat. I am wanting the lower half of the coat to be responsive to his legs ...
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8 views

Blender 2.80 smoke collisions not working

I am trying to get smoke to go through a house which I want on fire however all of the smoke is passing directly through. I started this project in version 2.80 and the effector feature isn't ...
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18 views

How to use collisions in smoke simulation to burn this house

my question isn't as basic as how to use collisions but more specific to my situation. I am making a house set on fire and I have made a model of it burnt, the problem is that I cannot just apply a ...
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14 views

How do you extend the collision time of an object?

I have a string tied to two separate objects, and I need the string to have a 'yanking' motion continuously for 20-30 seconds. The cloth collision currently is doing what I want, but the simulation ...
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29 views

Super elastic collision in Bledner-a smiluation

Can someone write for me a .blend file (i.e. a MWE) which would be a super-elastic collision either in 1D or in 2D or finally 3D of 2 elastic balls with ...
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20 views

Cloth going halfway through object to collide with

I am following the popular tutorial by cggeek on his modern bedroom. I exactly recreated his settings and it is giving me this. I am new to blender so I cannot troubleshoot myself. I can provide ...
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11 views

How can see the margin of the collider in blender 2.8?

How can see the margin of the collider in blender 2.8? Like see the dimensions of the object in wireframe mode, I would like see the margin of the colliders. Is it possible?
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2answers
52 views

Constrain position of group of wiggling objects within another

I try to animate a group of objects with Animation Nodes and I am using Vector Wiggle but I would like to constrain the position of the particles or other objects, within an inside of e.g. a torus. ...
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22 views

Can particles affect objects they collide with?

I have set up particles that collide with a cloth object. That works fine, but the particle collisions doesn't deform the cloth object or affect it in any noticeable way. Is that something blender can'...

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