Resolved 2D - How do I optimize having up to 10,000 colliders in one scene at the same time in

I need help with optimizing colliders in Unity 2D 2020.3.18f1. I'm using up to 10,000 colliders at a time but the problem is is that whenever the scene loads (Because they all load when the scene loads) Unity or (if built) the simulation itself, stops responding. And I can't seem to get it to work no matter what I try.

If you know a fix or need more information please just reply.
Thanks in advance.

 

What platform, what kind of colliders (static? Rigidbody?), and what else is in the scene? I was running a testbed the other day with 11,000 colliders and it didn't struggle in the slightest.

 

The platform really needs to be everything from mobile to pc/mac but the the objects will colliders do use rigidbodies and the colliders are triggers and there are scripts attached to all of the (up to) 10,000 objects with their colliders but even without the scripts they don't work

 

Can you try turning them on over time rather than all at once? Not as a fix, but to make sure that's actually what the problem is.

 

I'll try that but should I use

Code (CSharp):

1. yield return new WaitForSeconds(0.05);

or something else?

 

I was thinking more about switching on the game objects over time, rather than just the colliders.

EDIT: If the project isn't too big, I can take a look if you like.

 

Well it clones a randomly selected prefab with it's collider
But even with doing a wait it wouldn't work even as a 0.1 second wait

 

Are you waiting for 0.1 seconds and then doing them all? Or are you cloning them one at a time, 0.1 seconds apart?

 

apart

 

Hmm. Then 'colliders' certainly aren't the problem; something else must be locking it up. Something on the things you're spawning, maybe, or something else entirely.

I'd be happy to take a look if you want to zip it up and DM me a Drive link or something. I'm pretty good at finding bugs - you have to be when you write as many as I do.

 

Alright I just DM'd you using the conversation thing with the google drive link

Edit: And thank you so much!

 

Alright so Peeling helped me fix it the solution was to do a

Code (CSharp):

1. yield return WaitForSeconds(0.005);

and put the for loop into a IEnumerator

 

You can try also this approach:

 

That wasn't the fix That stopped it locking up, but the real cause of it locking up was that you were spawning all 10000 colliders in a tiny area, resulting in 100,000,000 collisions being processed every frame.