I was occasionally working on this since almost two years ago. Trying out stuff, learning how things work, benchmark the performance, rarely touching the source code and then back. I wish I'd do more about it, as I really want to manage to optimize it at some good level. Right now there are quality reduction options for the walls and floor rendering so that it might be more bearable. Additionally I have added lot's of gimmicks and fun stuff for this first release.

Here you can get archive with compiled binary executable (with tools and instructions to extract original CD/ISO if you own it and update back, I avoided giving a full ISO because I thought this would be more legit the way Doom community releases it's port without giving the full game data)
http://bugothecat.net/releases/3DO/optidoom/optidoom_main.html

Just see a video where I show off all the features.
https://www.youtube.com/watch?v=_koZOUnEbfI

p.s. If one needs help with building ISO (consider they have ISO or real game CD from somewhere else) then I could help, or maybe in the future someone uploads it at other place, I don't mind.