Official Topic Post for discussion about Doom (Atari Jaguar)
Created 3 Sep, 2022 02:48 by Cadaxar

Doom (World).j64
3a5878ea3f391174becc37b037318804

Resources:
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In RetroArch's Virtual Jaguar core, this game will run poorly if not having certain settings enabled. Note that I did not play through the entire game, but I did manage to improve things in the early game.


In the Virtual Jaguar's settings, enable:


"Doom Res Hack"
"Bios"


Then go to Manage Core Options and Save Game Options. Restart RA.


I tested the game on a Windows 10 PC with a potato integrated AMD chip and the game still would not run well. If the game runs well for you, though, you are done, enjoy the game. I went to RetroArch's system-level settings >> Drivers - and changed "video driver" to glcore. Then go back to Quick Menu >> Overrides and choose "Save game overrides" (This is not the same thing as the option from before, yay RetroArch and its inscrutable menus) After a restart, your game should run well (or at least as well as it did on real hardware.)


If it still does not run well, go back to core options and enable "Fast Blitter" This is a bit of a nuclear option because it can cause glitches, but your game will run faster. If it still doesn't run, upgrade your PC or play something else.


Finally, don't forget that the Jaguar controller had a numpad and that several game options were mapped to it: See this image for reference.

As of me writing this, the set is only beatable, by most people anyway, on RALibRetro (I used 1.7). Bizhawk runs way too fast for anyone but the most skilled players to handle. Retroarch runs way too slow, which can be dealt with, at least until you get to the final level and encounter a bugged wall blocking the exit. RALibRetro also runs too slowly but at least the wall is gone.