Comment by cubefox
10 hours ago
Unfortunately nowadays id Software doesn't seem to be at the cutting edge of engine technology anymore. Most interesting new developments now come from Unreal Engine as far as I can tell. Like virtual geometry (Nanite) or efficient ray traced direct illumination (MegaLights).
Doom the Dark Ages uses some pretty advanced (and performance intense) illumination techniques which i believe are comparable ro megalights.
They ripped our Carmacks texture streaming stuff outta the engine years,ago though