I've been playing
Doom [1993]... with raytracing!
Being a prboom based release, it doesn't mess around with anything major mechanically, it is a demo-compatible version of the game.
Finally able to justify having an RTX card.
It currently doesn't support AMD cards.
I turned off bloom [which was genuinely hurting my eyes, turning it off stopped the eyestrain I'd been feeling] and enabled the lo-res mode with the "CRT filter" [which alters the colors, making the picture look quite a bit nicer vs the way-too-clean look the game has with it off].
The CRT filter emulates what looks like a composite signal even though PC monitors are RGB, but eh, screw it.
I won't blame anyone if they don't like how it looks. Some parts just look weird. The modder added way too much shine to a lot of surfaces, the barrels glow far too brightly [which means E1 looks a fair bit worse than E2 or E3], and the lighting is different pretty much everywhere because Doom doesn't use real light-sourcing... but when it looks good, it looks
damn good. I really like how objects now have normal maps so that they don't look like cardboard cutouts against the comparatively hyper-realistic lighting.
A lot of areas are really dark vs vanilla. Going around with a dim flashlight and seeing a Pinkie just appear out of nowhere is a great experience, I love it.
Unfortunately, some areas that would be really dark in the original game are way too bright due to several objects that look like they would cast light IRL now actually casting light. It's just different overall.
A lot of the look [especially with the filter on] reminds me of the PS1 version of Doom, with the quite saturated colored lighting combined with the overall darker looking environments.
I'm a little iffy on some of the other non-raytracing related changes -- the radiation suit gives the screen edges a "plastic bubble" effect, which is a little disorienting, the light amplification goggles give everything a bright neon heat-map look [you can toggle it on/off with the flashlight key, and sometimes you need to turn it off], and you don't see the screen flash red when getting hit.
I really like the new spectre effect and the new wipe effect, they're extremely cool.
I think the biggest flaw this mod has is that because it has to modify the assets with new materials for raytracing support, it only supports Doom 1.
If it supported Doom 2, I could play a bunch of WAD files [or at least, any files that don't add their own new graphics], since everyone targets Doom 2.