I mean correct me if I'm wrong, especially if you work for pubg obviously. But I can develop code to work anyway I want. I can design the damn game to write my x,y coordinates to a txt file, send that in a restcall to a server 3 countries away, wait for a webhook return confirming the coordinates, then process the response in a synchronized thread that is literally managing every one of these for the entire server....I mean, would it log the coordinates, yea, does it work, yea, is that a 'game design', sure, would this be acceptable? No. Just sayin can you actually verify this kind of nonsensical unoptmimiZed downright shit code, isn't floating around in pubg? Either in original engine or their shit scripting to mod it?
Just odd you can make such a general sweeping statement of how they are rendering these objects....maybe perhaps they aren't using occlusion and view frustum as you indicated I dunno not familiar with the concepts or where you opt that from with regards to this game/engine.
But just saying your post read as fact, about proprietary software, you likely don't have access to or can decompile. Or decompile with any real success.
I work on one of the most complicated software frameworks on the planet it's fukin disgusting like only about 20 companies out there can even afford to hire the teams of the developers who know how this shit works....I'm just a youngin at it I got lucky to get recruited and trained on it.....I'm nothing special but I try ;)
But all the time I think I know something should work some way, and I dive into the code and I'm like holy shit, did this guy just divide and forget about the fukin integer division and to use mod lol or something strangely similar. Shit gets patched all the time on active software. I think I know how something works. 2 months later, it's different, hell maybe even wrong now lol
Careful stating something as fact, when you have no evidence
All that being said if you work for pubg or have some direct experience with this game engine, please indicate as such and I will slowly remove foot from mouth ;)
Or if you really are that knowledgeable and smart. Just say so. I concede lol.