OnCollisionEnter with relativeVelocity > 0 (without actual collision, distance > 0.5f)

Unity Engine
1

Hi,
I have a pretty major problem, which I can’t manage to solve…
There’s a script with OnCollisionEnter() function attached to Rigidbody with Sphere Collider (it’s a ball). This script just logs relative linear velocity of the two colliding objects.

Bounds for Sphere and Box Colliders you can see in the image below - distance between both these colliders is 0.5f.

6906911--808994--upload_2021-3-6_9-48-35.png
6906911--808994--upload_2021-3-6_9-48-35.png1334×544 90.5 KB

Problem: Collision is recorded when there is none (distance = 0.5f).
In Physics settings:

  • Default Contact Offset: 0.01

  • Contacts Generation: tried both PCM (Persistent Contacts Manifold) and Legacy Contacts Generation. No difference.

Any ideas?

2

Hi,
Have you checked so there are no scaling problems in the parents?
All parents to the objects should have the scale 1,1,1, all the way to the top.

1 Like
3

Ok, will have to re-import assets and try with scale = 1,1,1

4

Ok, so, as suggested by @arfish , I re-imported all assets, so that I shouldn’t scale them - it really did the job! Thank you! :slight_smile: