if source ports not affecting the performance (which is already perfect for me) then they're changing the look.
They're only changing the look in a good way, in the same sense that running a game at a higher resolution changes the look in a good way. What does it matter whether the higher resolution was originally possible or not? It doesn't.
doom was never intended to run at 1600x1200 or something ridiculous.
1600x1200 just makes it better than the designers intended. Not to say that this will make it look as good as a game that *was* intended to run at 1600x1200, but why limit a games' graphical quality to what the devs intended?
why would i want to look up and down in id tech 1 games? they're not fully 3d, there's so rarely anything there.
It helps a LOT in, say, Final Doom. And Doom is more 3D than you might think - it has limitations that Quake did not, but it makes enough use of 3D that looking up and down can frequently enable you to see things that you otherwise couldn't. That said, I can completely understand why a gameplay purist would prefer not to use mouselook.
so I can hear things the developers never intended, with whats behind me and such? then I don't want it. the game wasn't designed that way.
You're not hearing anything that wasn't in the game in the first place. You're just hearing it behind you instead of from no particular direction.
altering the game distances it from what the game was and is supposed to be. it's no longer d games' DOOM. it's someone else's idea of something DOOM-like
It's still DOOM. The artwork is all there, the gameplay is all there, every single shred of Id's ideas and creativity remains present. To claim that something is lost when you run DOOM at a high resolution, let alone act as though it's transformed into something completely different that Id had nothing to do with, is absurd.
yes it matters. it's the developers vision. things are designed WITH certain limitations in place. removing those limitations changes the game.
Removing those limitations after the design has already been completed changes nothing. The developer's vision remains intact, only now you can see certain parts of it more clearly.
altering the game arbitrarily on your own to look more modern is a worse gaming experience, IMO. it's not a modern game. it should look dated.
DOOM looks plenty dated running in GZDoom. You've still got low res textures, flat enemies, primitive lighting effects, etc.
where does anyone choose to draw the line? why not add HDR to Quake?
Because HDR would mean introducing artistic decisions that were never part of Id's design. Key phrase here is "artistic decisions" - you can't just say "let there be HDR" and watch magic happen. You'd have to go through each level and put it in yourself.
My line in the sand is actually one of the two least arbitrary and complicated positions to take. "The best the game can be from it's time"
It might not be complicated, but it is an arbitrary limitation. Allowing for GLQuake doesn't help your position either, since Quake was not designed for it.
I don't alter my books, my music, or my films to add to them either. (like colorized versions of originally B&W films).
Colorized film is not a good analogy - that not only involves making artistic decisions, but it overrides the crew's artistic decisions. Source ports do neither of these things by default.