Help Tunneling

[Richard]

I set spheres with obi colliders like the image, however when the tshirt drop by gravity, it tunnels the colliders. How can I fix this. I do not change size of any object.

[josemendez]

I set spheres with obi colliders like the image, however when the tshirt drop by gravity, it tunnels the colliders. How can I fix this. I do not change size of any object.

Hi Richard,

There's many, many possible causes for tunneling. Always use the ObiParticleRenderer component to see how the particles are behaving.

In this case, it is quite possible that the collider is slipping trough gaps in between the particles, because distance constraints aren't converging fast enough. This is just a guess, though. Try increasing the amount of solver substeps to 2 or 3 to get better convergence, or increase the particle radius.