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Questions tagged [collision]

The tag has no usage guidance.

8
votes
1answer
3k views

How do i create low lying smoke (similar to Zootopia), in blender

Hello Blender community, I am a huge fan of the Disney movie Zootopia, the amount of physics and detail really drew me into 3D animation and design. Although I always had an interest in 3D ...
4
votes
1answer
883 views

How to get the physics engine to wraps a string around the moving part of a motor constraint?

I'm trying to simulate the physics of a string that wraps around a motor spool when the motor turns. The body of the motor and the shaft+spool defines a motor constraint, so a velocity can be applied ...
2
votes
1answer
458 views

How to have multiple soft bodies in a single object?

I want to use soft body physics on a human character. It means breasts physics is different than butt, thighs or belly. Is there any way to apply multiple soft bodies on single object? Like vertex ...
2
votes
1answer
160 views

Create a shower hose with correct physics

I'm making a shower hose that follows the handle when it moves. I've created it successfully following THIS tutorial, but the hose is too "elasticy". I'm wondering which settings I should change (...
3
votes
2answers
7k views

How do I stop hair particles going through the body and the head?

Target : I intend to have long lady hair that go swirling in the wind. I am trying to achieve that through hair dynamics. Problem: Hair are going through mesh(body and head). I am using blender 2....
7
votes
1answer
973 views

make soft bodies stay inside another soft body

I have a cube, with a transparent surface, and make it a soft body and drop it. It's transparent because in it are some red balls. How do I set it up so that the red balls inside the cube bounce ...
1
vote
1answer
2k views

Stop hair from falling through emitter mesh

I have a simple sphere with a hair particle system on it. When I add hair dynamics, the hair simply falls through the mesh. I would like the hair to fall around the mesh and collide with it (both ...
6
votes
0answers
82 views

How do you avoid dependency cycle between two soft bodies?

How do you setup two softbodies with collisions without getting a dependency cycle ? A depends on B through Softbody Collision B depends on A through Softbody Collision Those two objects interact ...
4
votes
1answer
4k views

Soft body and collision don't work

I am beginner in Blender. When I try to make a bouncing ball (UV sphere marked as "soft body") on the Plane (mark as collision), sometimes the ball falls through the plane. Or when it works ...
3
votes
1answer
142 views

Rigid bodies collision of a piston inside a shell

I am trying to simulate with the piston constraint by putting the rigid body piston into another rigid body shell such that they can work as a piston mechanism. However, the piston inside the shell is ...
2
votes
2answers
554 views

Rigid bodies not colliding when going fast

I have a scene with (what will be) a treasure map and am trying to animate some coins falling onto it. I started based on this tutorial https://www.youtube.com/watch?v=iYL9w6xsZ6g made a coin, ...
2
votes
0answers
994 views

collision between RB and softbody objects?

I have been trying to get a wrecking ball to collide with an upright slab of jello, with no success so far. I've tried so many combinations of physics attributes that I can't remember them all, but ...
6
votes
1answer
911 views

What causes this weird collision?

Pretty sure that there is some answer to this already somewhere since it seems such a basic action. But I could not find an answer to it. Maybe since I just started with Blender, I just don't know the ...
0
votes
0answers
46 views

Missing cache error

My simulation runs at 1 FPS and I noticed my console is spammed by "missing cache error". If I opened my blend file : everything's OK. If I edit a mesh (enter and exit edit mode with no change) : 1 ...
0
votes
0answers
171 views

Blender - Undefined Socket Type in animation Node

I am trying to learn the function "Particles Stick to side faces". Particles stick to side faces However, I installed animation node in blender and find some source node in the node editor become ...
0
votes
2answers
394 views

Modify the size and location of the Rigid Body Collision Object

Maybe I'm just spoiled by Unity3D, but I would like to reposition and resize the Rigid Body Collision Object of an object in my scene. Is there currently an established method to accomplish this? In ...