Questions tagged [collision]
Blender has several physics simulations that support collisions, such as fluid and rigid body. Use this tag for questions about collisions in physics simulations.
460
questions
0
votes
0
answers
9
views
Particles wont stick to floor in rigid body scene, but jitter instead?
So after searching the internet far and wide and being referred to only paid tutorials as a solution here I am.
So my issue is that I have this semi heavy rigid body scene, where an object crashes ...
0
votes
0
answers
10
views
How to effectively use particle emitters on an animated mesh?
When baking my particle simulation to the animated mesh, it only emits the particles from the first frame of the animation and continues to emit from that point, while the mesh continues its animation....
- 1
1
vote
1
answer
50
views
Problem with soft body collision animation
I'm new to Blender.
How to make animation so that objects deform and interact with each other?
I make a thread - collision, animate it and make a body - soft body, but it turns out not at all.
The ...
- 11
0
votes
0
answers
42
views
Soft body simulation going through mesh object with collision modifier on
I have an .obj that has a mesh cache and collisions modifier on it. however when I press play my soft body necklace falls right through the object. Any tips or advice would be greatly appreciated
Link ...
0
votes
1
answer
21
views
While extruding, The model connects itself to other faces
I was trying to make a collider mesh for unity and just mapping out the map with knife tool then while cutting a building and extruding it when I clicked left clicked to confrim, it turned into second ...
- 3
0
votes
0
answers
24
views
Wings are not interacting with the object?
I have this character and as you can see the wings do not interact with the hive. I have collision and cloth on the wings, I created a vertex group and went to cloth-shape-pin group wings, but the ...
- 253
2
votes
0
answers
22
views
How to create Cloth Simulation for Deflating a net wrapped around balloon in Blender?
I am trying to wrap a net (made out of torus shapes) around a balloon.
As the balloon deflate, I hope to make the net get flat and flat (on the ground.
I was exploring the inflate and deflate on ...
- 31
0
votes
0
answers
35
views
In Pose mode, how to deform softbody according to the collision caused by the movement of bones?
The mesh called "Cube" is supposed to be a soft body, which has been parented to 6 bones:
As the screenshot above shows, in Pose mode, when I rotate the bone, the mesh does not deform when ...
- 319
0
votes
2
answers
51
views
Make two objects fall together then "break apart" when hitting the ground
I have a coconut mesh with two sides as if it was cut in half. I can't for the life of me find anywhere online how to get them to fall together, without blender blasting them off into infinity at ...
- 1
0
votes
0
answers
14
views
In walk navigation, is there a way to prevent camera from walking through objects?
I am recording the camera walk navigation movement (Like a gameplay) and I don't want it to pass through walls and other objects. Is there a way to do that in blender? I also had the idea of adding ...
0
votes
1
answer
24
views
Animating a rigid body collision with keyframes?
I'm new to physics in blender so I apologize if this is a trivial problem.
I'm trying to make a sphere slowly push through a wall of bricks in zero-G. I set the individual bricks to Rigid Body, and ...
- 239
0
votes
0
answers
36
views
Is there a simple way to enable collision with geometry nodes?
new to geometry node, in the exemple below im trying to make the curves, instanced on points on the mesh going along the surface of the objets, the stripes are animated with a fake wind effect (wave ...
- 1
1
vote
1
answer
23
views
Collision issue in cloth simulation
I'm just starting to learn Blender and while going through a tutorial I stumbled upon a problem that I can't solve. During the cloth simulation, the plane does not collide with the objects (couch ...
- 51
0
votes
1
answer
45
views
Distributing objects with random rotation without clipping
I'm not sure if this is possible, but I feel it should be somehow, but I want to fill a volume with instances with random rotation without clipping. Ideally, if clipping occurs, objects would be ...
- 11
0
votes
0
answers
32
views
Combing very small hair curves with collision enabled
When trying to comb hair curves I noticed that the Use Sculpt Collision option does not work properly for very small hairs.
The following spheres have hair curves ...
- 555
0
votes
0
answers
30
views
Collision do not work with smoke
I have trouble with the collision when I’m doing a smoke simulation. It works fine if I open up a new Blender file but it doesn't work in my file that I'm working on and I can’t understand why. I want ...
- 13
0
votes
0
answers
14
views
How do i make my grass particles collide with other objects or have them not appear under where other objects are?
Sorry I'm a big blender noob. I have these flower objects, and i made a hair particles for the chunky grass around them. I want the grass to either avoid them OR not be in the areas where the flower ...
- 3
0
votes
1
answer
31
views
Why do my particles keep spinning after hitting a collider?
I want to make an animation where bullet casings are ejected from a rifle, spins mid-air, hits the ground and eventually stops moving. The casings bounce properly, but their angular momentum is not ...
- 28
0
votes
0
answers
16
views
Rigid body overlap instead of pushing during Z scale animation
I was experimenting with the Rigid bodies for an idea of mine. I hope to achieve animation of cubes falling and extending in the Z space. When the Z scale extends, it fuses with the other cube object. ...
- 35
0
votes
1
answer
38
views
Help with Mesh Intersection/character self collision
I know this issue has to do with weight painting but she's already weight painted so I don't really understand how to use that to solve this? It happens with the whole body in general when she moves.
...
0
votes
0
answers
15
views
How to implement the animation of particles when they collide with the ground?
I'm not quite sure if this is the right place to write this post (I apologize in advance), but I need some help. I need to do something similar to what is shown in this video (03:25). How do I animate ...
- 13
1
vote
0
answers
26
views
Collusion not working on object [closed]
I am doing this tutorial
And I have added a collision to the outer object but the inflating ball inside still wont collide with the grid on the outside? Any ideas?
- 11
1
vote
1
answer
110
views
Problem simulating elastic collisions using simulation nodes [closed]
So I have a question regarding simulation nodes and am hoping someone can help resolve my issue.
blender version: 3.6 (Stable)
I am creating a geo nodes setup that attempts to simulate perfectly ...
0
votes
0
answers
27
views
Falling/Colliding Legos
I am trying to animate a scene in Blender that consists of Lego blocks falling and colliding with some text/objects.
I have tried two main approaches to this:
With particle systems rendering a ...
- 1
1
vote
1
answer
42
views
Collider is static
I have a 3D model of a character with cloth physics hair, I bent him over to see if the physics looked ok and all worked well it seems except I cannot figure out why it seems the collider of the mesh ...
- 13
0
votes
1
answer
42
views
cloth physics are not working properly
I Kind of searched on the internet but could not find a proper solution , so the cloth plane whenever I try to add a character and put collision on , the cloth does does jiggle or kind of vibrating ...
- 253
0
votes
0
answers
54
views
How to Create a Model That Collides with Itself
I have recently started learning Blender and have stumbled upon a dilemma in the model I am working on. The upper portion of the thighs on my model are meant to collide slightly before they connect to ...
0
votes
0
answers
49
views
Collision Problems with Hair Particles (Hair Dynamics) during animation
I’m having trouble with a character that has a particle hair system. I want the hair to move realistically, so I enabled hair dynamics in the particle settings. However, the hair particles don’t ...
0
votes
0
answers
20
views
Collision modifier isn't working with mesh hair
I've modeled some hair, converted it into a mesh, modeled the head of this character, and followed a tutorial on how to make my hair animatable and bounce when my character moves. However, whenever ...
- 31
0
votes
0
answers
36
views
Access Underlying Physics Engine with Python
I need to detect when (at which frame(s)) collisions occur in my rigid body simulation. I have tried a few tricks (see below), but ideally I would like to use the physics engine to get accurate ...
0
votes
0
answers
34
views
How can I rotate and scale the collision cylinder, that it will fit perfectly on the wheel?
The cylinder collision should fit perfectly on wheel at x axis.
Cylinder is supposed to be rotated and scaled, that it would fit to the edges of the wheel.
Some people recommend me using Delta ...
- 1
0
votes
0
answers
17
views
Interaction of a system of particles with a moving rigid-body object
I tried to make a system of particles that would reflect from both active and passive rigid body objects (a plane is passive and a cube is an active rigid body object).
But when I try to run the ...
- 1,083
1
vote
0
answers
16
views
Odd smoke simulation collision behaviour at resolutions above 41
I have a smoke simulation setup which consists of two spherical inflow objects rotating around a common central point. Both objects stay inside of a torus shaped effector set to collision.
I have ...
- 11
0
votes
2
answers
555
views
Collision with Geometry Nodes
I wanted that the grass turn in the Z axe to avoid collision with the box when this last moves.
I try several options but I do something wrong and it doesn't work.
My Geometry Nodes
Any idea how to ...
- 594
1
vote
1
answer
363
views
Cloth not falling
I have just been following this tutorial of how to make simple clothes (the jacket) which should involve sewing
https://www.youtube.com/watch?v=W9GDWKzf1mc&t=758s
I followed all the rules as best ...
- 13
0
votes
0
answers
21
views
Oil Drum Fire Overspill
Even though I have collisions turned on I seem to get overspill from the flames and smoke
1
vote
0
answers
14
views
How do you stop particle objects from a collection intersecting with each other?
I'm trying to create a scene with a bunch of flying cars. I have 5 different car models in a collection and I've set up a rectangular emitter and a path for the traffic to follow. That all works ...
- 11
1
vote
0
answers
38
views
how do I enable collisions between a rigid body and cloth without affecting the rigid body simulation
I have a nice rigid-body simulation that needs to collide with a cloth sim but I can't find a way of getting the cloth to collide with the actual position of the rigid body. when the cloth sim runs, ...
- 11
1
vote
1
answer
72
views
Why is my shirt cloth simulation clipping through my body mesh, and some parts still self-clipping despite enabling self-collisions?
Creating clothes for my character with cloth simulation, and am having trouble with my body mesh clipping through my shirt when my character switches to a pose from his initial T-Pose, as well as ...
- 65
1
vote
1
answer
36
views
How to stop particle from vibrating when still on a surface?
I created a scene where a plane emits balls that bounce off some objects and land on the ground.
Once the balls lose velocity and stay on the ground, it starts vibrating in its own spot.
How do I stop ...
- 11
0
votes
1
answer
105
views
Is it possible to add collision to an object linked with an armature?
I am trying to add collision to my object which is attached to a rig, as when I animate it I want it to interact with objects with rigid body or collision. But I am having hard time figuring this out ...
- 13
0
votes
0
answers
23
views
Slow cloth simulation baking when collider mesh starts moving
I'm trying to animate a model after finally getting everything rigged, but the cloth sim slows to an imperceivable crawl the moment the collider mesh starts to move.
I'm using a hidden decimated mesh ...
- 1
0
votes
0
answers
37
views
Blender cloth collision not working
I have been trying to make this effect with my design. But it doesn't work. My object underneath is keep on showing thru the cloth (below image).
I tried joining both of the objects (the heart and ...
0
votes
0
answers
16
views
Rigid Body Compount Parrent Issue - Just the origin point collides
I'm very new to Blender and I want to create an animation with rigid bodies using a friend's .obj files. I imported a pole and had problems with the collision shape. Mesh and Convex Hull didn't work ...
0
votes
0
answers
32
views
Fluid simulation not aligning with effector object properly
Hi I'm creating my first fluid simulation and trying to fill my 3d object with water. I have set my object that I want to fill as an effector and set to collision. For some reason when the object ...
0
votes
0
answers
24
views
Mantaflow smoke partially ignoring collision effector
I have a smoke emitter parented to an open ended cylinder mesh, all is well until i make the cylinder a rigid body, then the smoke permeates through the cylinder mesh. I have tried everything (I can ...
- 1
0
votes
0
answers
90
views
importing/creating collision with large scale game worlds
So i recently decided to start making terrain maps by hand in blender, as i much prefer the tools over UE's terrain and Unity's terrain tools, and i like the detail complexity i could potentially ...
- 1
0
votes
0
answers
9
views
Im using the mirrored modifier for my clothes, I move parts of my armature so she could sit up and the clothes splits how to make it stay with skin?
So this is a woman i'm making in her bed
I move the bone in her buttocks to make her sit up but the clothes splits so how do we make the clothes have a still shape?
- 11
0
votes
0
answers
57
views
Is my soft body mesh flawed for soft body physics?
I want the "Pachi Shell" to behave like a semi-rigid plushi. I've spent several hours tweaking stiffness, push/pull, self collision, etc, but I can't get the results I want before it the ...
- 21
4
votes
2
answers
931
views
How come my cloth simulation is clipping with itself when using armature despite having self collisions enabled?
I am trying to create baggy clothes and using Cloth Simulation, but seem to be having a problem with self collisions. Despite having enabled Self Collisions for my shirt simulation, the shirt still ...
- 65