This isn't a game where RT is an additional extra to enable extra effects or higher quality, it's now the core lighting system, you can't just turn it off as it's that's the only lighting system in ID Tech 8. Devs would need to spend a huge amount of time manually placing and tweaking lights which would then look crap with the destruction and dynamic elements in this game, it would take far longer to make the game. RT only is the obvious future, many other developers are going this way too.
Yep. nearly all the major devs have switched to RTGI.
- Rockstar - GTA6
- Ubisoft - AC Shadows , Far Cry 7
- Massive - Star Wars Outlaws/Avatar
- Respawn - Star wars Jedi Survivor
- Capcom - Re Village and Dragons Dogma 2
- Konami - Professional baseball Spirits, MGS3 Snake Eater, Silent Hill F, Silent Hill 2 Remake (Software realtime GI)
- Bethesda - Starfield (software based realtime GI)
- ID software - Doom
- Machine Games - Indy
- Remedy - Alan wake 2 (PC only)
- EA Motive- Dead Space Remake (software based)
- Warhorse - KCD2 - Software based
- Every single UE5 game - Software Lumen
- Fortnite - Hardware Lumen
- Insomniac - Wolverine - according to leaks. Could be software based but its fully realtime GI.
- NCAA Football - First Frostbite game to use RTGI
- CD Project - Cyberpunk PC only - Witcher 4 everywhere
- Forza Motorsport - Software based. Hardware RTGI on PC.
- Metro Exodus - First RTGI game on consoles.
It seems most if not all of the industry has embraced RTGI, be it software based or hardware based. it's very obviously the present, let alone the future of games development.
The only ones being stubborn are sony studios for some reason, but Insomniac is moving to realtime GI with Wolverine and while realtime GI is not necessary to push great visuals, it's definitely allowed smaller devs like Bloober, Sandfall, Chinese and south korean developers to create some massive games without massive teams or budgets.