Since Doom 64 was just mentioned I would like to talk a little about Doom 64 style lighting, this lighting even newer than Global Light Color has really been seen too little, I think almost no one uses it.
I suppose it is due to its lack of support, because to give it the use that is given in Doom 64, some flags are needed and a way to play with them, perhaps through ACS, and also that they do not work correctly on 3D Floors although they do on Slopes.
However, I consider that as with the Global Light Color, interesting things can be done despite the lack of support.
I never completed the map and there was a lot to polish since I was just beginning to realize how to use such lighting correctly, I used Doom 64 Colors and in some parts I also used Global Light Color to complement it.
At that time, I wanted to transform the environment of the map into an unknown place in Hell or at least that's what I had in my head. This map was just to give me an idea of what a Doom 2 map would look like if someone used this Lighting.