I remember playing the first inside area like it was yesterday. The one with the balloons floating outside. I remember looking at the shadows up close, noticing an green hue in them.. I think it had somehow to do with the overal horrible texture resolution. I dunno.
I also remember the constant, immersion breaking horror of terrible, low-res textures. You walk past what seems to be a damaged couch, but the textures are so horribly bad.. your brain just doesn't accept it as such immediately. Same goes for all the other objects, like chairs, posters, tables. The enemies stood out in unrealistic fashion, because they were the only ones with a tad better textures.
These flaws ripped me out of the immersion every single time. I was absolutely disgusted by it.
The patch did fix the pop-in textures but no, not entirely. Maybe I'm more susceptible to notice it than you.
Then there was this area in and around a train station or something? In the shells of a city. I almost physically felt the punches of the horrific ugliness of the textures -- everywhere! I remember standing at a spot that looked beautiful in a pre-release screenshot, but looked so.. so bland and horrible for real.
Ugh. Just so horrible low res. Pretty textures in the distance, granted, but this was an FPS.