If a prim crosses a region

I was starting to think about mega prims and how they are often used twice to overlap each other when crossing region boundaries to prevent prim bounce as well as falling through. The idea is that once you cross a region, the physics no longer apply to the prim you were just walking on. In that case, you would fall through if it overlapped to the other region. If you lined two prims next to each other, one on each region, you could end up bouncing up in the air. Having two prims in the same spot, but slightly offset so they each sit in a different region solves the problem. So... do prims on the region map work the same way? If I have a prim crossing a region, it may not render. Let's see! From Dedric Mauriac via bloghud.com