Copy World for Independent Update and Render

[jimbuck]

Is there a way to copy/clone the raw memory of a World into a separate instance of the World?

I'd like to experiment with independent update and render threads. To avoid rendering in the middle of an update I want to try using multiple Worlds that are swapped to let updates and renders happen simultaneously.

It would be a low level action that could be called 60UPS and (hopefully) 60FPS, so copying the contiguous memory blocks onto pre-allocated spans is preferred.

Thanks!