DOOM: The Dark Ages Significantly Reduced Storage Space Requirements and Turnaround Time By Using RTGI

Implementing ray tracing and path tracing in video games is driving significant tangible game development improvements in games, as recently shown by id Software in DOOM: The Dark Ages.

As highlighted by Digital Foundry during their weekly podcast , the creator of the DOOM series hosted a presentation during SIGGRAPH 2025 focused on the global illumination tech featured in the id Tech 7 engine, which was first showcased in the excellent Indiana Jones and The Great Circle by MachineGames a few months before the debut of DOOM: The Dark Ages earlier this year. Besides showcasing the visual improvements the new technology brings, id Software revealed how RTGI has streamlined game development, significantly reducing minimum and maximum pre-computation times per level, as well as lowerin