Saving Space in Physics! - any ideas?

Physics
1

What are the best ways to streamline physics objects so that they take up as little processing power as possible? I’m making a game with TONS of physics objects, and I need it to be as convenient and stress-free as it can be. These are the ways I’m working on right now, any other ideas (or methods of implementing my ideas) are completely welcome!

-Start out all physics objects in Sleep
-When the player is over 1.5 screens away from the objects, make it Kinematic to take away the physics
-When the player is over 2 screens away from the object, remove the object’s rigidbody component altogether (and add it again when the player gets close)
-Put a rigidbody to sleep after it’s been stationary for 3 full seconds

This is all I’ve got so far, any ideas people?

2

Rigidbodies automatically sleep after they’re stationary for one frame. I’m not sure that the code necessary for turning this stuff on/off all the time wouldn’t actually be slower than just letting PhysX just handle the optimizations by itself, which it does quite well.

–Eric

3

It handles it well until there are mass amounts of objects going simultaneously, even if they’re stationary. The game I’m looking to develop has tens of thousands of physics-enabled objects, which is why I need to have them disabled when they’re not in use or offscreen. Unity handles it fine until there’s about 1,000 or so rigidbodies existing simultaneously, even if they’re asleep.