Loading Screen System (Level Transitions w/ Progress)

[Thomarzenal]

Oh, that’s an interesting question.
In general, there shouldn’t be any *significant *overhead, where an empty level would load faster than a root level containing (unloaded) sublevels.

I ran a test switching between one such empty level and one containing all of the level assets in the project (49 sublevels), measuring the time by saving a DateTime value to the Game Instance on OpenLevel and printing the time difference in BeginPlay of the loaded level.
I didn’t notice any discrepancy at all in PIE, Standalone nor Packaged (with and without Nativization) between those two levels.

Results for both levels:
Packaged build: 40-60ms
PIE: 65-85ms
Standalone Mode: 270-360ms

In conclusion: it shouldn’t be of any significance how many sublevels are added to a root level, as long as those sublevels aren’t set to be initially loaded.

Ah cool thanks for looking into that, I was probably doing something weird with my levels then Think I might have to purchase this in that case!