Quake 4 Mod — HighRes Textures Q4
Here’s a Quake 4 mod that “increases the size of all model textures by 200%,” which I interpret to mean that the textures resolutions are doubled. An increase of 200% actually means a tripling in size, but texture resolutions generally work in increments of two, so I’ll assume the author meant a 100% increase.
At the end of the day, the details don’t matter — what matters is that this six year old game won’t look as dated. Maybe when you first installed Quake 4, your computer could barely handle the game. By now, you’ve probably upgraded your system and can run the game on max settings, so why not take advantage of your extra computing power and ramp up the quality higher than previously possible?