Bug / Crash Cloth collisions not working

[josemendez]

Hi, 

I've been using obi cloth for the past year - with minimal problems 

It seems unity 2021.3 may have broken obi cloth, as collisions are no longer working


I created a fresh project in 2021.3.2f1
freshly imported the obi cloth package from my assets in package manager
- new scene
- Right click > Create 3d object > obi > obi cloth
- assigned the cloth sheet sample cloth blueprint
- surface collisions enabled
- Create a box collider underneath 
- Assigned obi collider component to the box collider

The cloth has no interaction with the box collider at all and falls through it.

I've tried both backends, and all dependencies are installed

I sanity checked myself by following this tutorial exactly - https://www.youtube.com/watch?v=q2Qsh7P79q8
my cloth flys straight through the object 

Any clarity on this issue would be greatly apreciated 

(Btw i was unable to get my licence ID when creating my account, if needed ill follow up with my producer who was the one who purchased the package for my seat in the organization)

Hi John,

Either create your own blueprint, or click “Generate” on the sample blueprint you’re using. That particular blueprint was created before surface collisions were available, and used in a sample scene that makes no use of surface collisions, so the data contains no simplex definitions.

Note this is only necessary when using that particular sample asset. Any cloth blueprints you create will contain simplices anf hence work with surface collisions.

Kind regards,