Not even Baldur's Gate: Enhanced Edition could use the Baldur s gate assets, they were lost.
Actually only the
source assets were lost; there's a difference.
I would consider losing the source assets to be the larger problem. Though I'm strictly a novice at modelling and so on, I know that even without the issues of low res in-game assets (by which I mean probably much lower detail than the originals) some things can't easily be reverse-engineered and it ends up being much less trouble to make them from scratch.
