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Blender has several physics simulations that support collisions, such as fluid and rigid body. Use this tag for questions about collisions in physics simulations.

0 votes

How to hide collision shape lines in viewport?

It looks like it is not possible even with python. According to ChatGPT :) there is not an API to controlle visibility of collision_shape component. As workaround I wanted to change Theme of 3D Viewpo …
vklidu's user avatar
  • 37.2k
3 votes
Accepted

Basketball net is not colliding with ball

Your version will be very heavy for calculation because for such a stringy collision you will have to extremely increase "Quality Step" value in Cloth Sim. …
vklidu's user avatar
  • 37.2k
28 votes

Piping cream through a piping tip

Flip Fluid addon [$] create star (you can use Extra Objects addon) and animate movement under Physics Properties enable Flip Fluid > type Inflow add Cube object and scale it to Domain dimension under …
vklidu's user avatar
  • 37.2k
5 votes
Accepted

How to avoid tube overlap in rigid body simulation

That is weird for me since margin is low so there is not even a possibility collision margin crossing from inside tube through to outside (to create effect like switched Normal direction). … Apply modifier (make real geometry) Note: In a middle of anim it exploded because of collision penetration so I enabled Margin for floor object 0.04 that make it stabilised. …
vklidu's user avatar
  • 37.2k
7 votes
Accepted

Replace object with another on collision

Notes: Particles works here only because I disabled Gravity I wanted to use Hair system, but it didnt react on collision object Kill Particles. …
vklidu's user avatar
  • 37.2k
2 votes

How to make particles stick to mesh when Molecular Script is enabled?

Behaviour is wierd and I had no luck with proper setup. This is not an answer, just some notes to OP – Cubes Physics Properties Friction 0 Friction 1 Friction 1, Stickiness 10 Result is affe …
vklidu's user avatar
  • 37.2k
2 votes
Accepted

Having a collision object. How to kill particles from a defined source?

Collision object with Kill Particles option can do the same, but there is not a possibility to restrict it for a specific particle system - it works globally. … Particle System Properties > Physics > Deflection > Die on Hit Or you can let collide particles with specific group of objects via Collision Collection. …
vklidu's user avatar
  • 37.2k
1 vote

Having an issue with mantaflow fluid simulation with flow object inside of another object

Your domain is too big with very low resolution (divisions) ... scale down Domain or increase Resolution. Notes: your mesh has double vertices, Merge > by Distance M instead of creating inner effect …
vklidu's user avatar
  • 37.2k
8 votes
Accepted

How to twist a cloth?

What about to add one collision object? Example with only one bone (your blend) plus Cylinder as collider, bad timing and probably better to use some less circle shape, but you got idea. …
vklidu's user avatar
  • 37.2k