We are looking at using Unity Pro and wonder how large a game world can get before the engine gives out. I see there are some dynamic terrain loading projects out there so I know its possible to do that, but I still can’t quite get a handle on how big is too big.
Even defining big is hard. Is a game world of 500x500 meters big? 5000x5000? etc. How much does the quantity and type of content matter?
The quantity and type of content matters much more than the size. If all else is equal the size will make pretty much no difference.
Size only begins to matter when you reach the accuracy of floating points.
Other than that, it’s largely down to the level of detail you use.
Depends entirely on your implementation.
If you write your own engine (e.g. loading in and out objects, keeping user at (0,0,0)) I know of no reason one couldn’t in theory exceed the dimensions of the universe 