I've been watching some videos of people running these absurd and frankly (IMO) hilariously insane detailed extreme (GZ?)Doom mods. Lots of normal mapping, or bump mapping. Fancy modern dynamic light. I'm no expert.
Anyway, that got me thinking about this plan I've had for a while, making 3D spaces in some map editor so I can use them as a basis for artwork in a comic. It'll help set up complicated action if there's a "physical" place where it all happens, where I can see the space from all kinds of angles etc. Now, I don't really need the ability to place rooms over rooms for this, now, do I? Even if I would create a complicated setup that would technically require rooms over rooms, I could just draw it like that - since the actual spaces made in Doom are basically visual aids to help trace artwork.
Why not make these 3D environments in Doom with those bump mapping textures, and dynamic light? I don't think getting those modern methods into Doom will exactly be easy, but once that's all done, I can assume that Doom map editors are probably the easiest and fastest to work with among all the dozens of game map editors around?