Original Apocalypse received mode which attachments ray tracing game, e Digital Foundry carried out a technical analysis that revealed the secrets of this amazing project.
The ray-traced Doom mod was announced by Sultim_t on April 1st, and many thought it was a joke, but it was all true. But how was it possible to introduce ray tracing in a 1993 game?
Alex Battaglia explains it videoid Software showing the shooter’s graphic features and not having a lighting system or surfaces with reflective features.
So the moderator had to work very creatively, changing various assets so they could react to ray tracing, and introducing new light sources (especially a torch) to be used where nothing else was.
Source: Multiplayer