TBH I don't see the point. The bloom effects are easily downloaded for Vegas, and using in-game effects downs the FPS.
I tried but it does look rubbish, AA+AF looks better. Haven`t tried yet with the new ENBSeries bloom which works with AA and AF.
i did a little short 20 second contrast/bloom test movie, but hadnt released yet since i didnt see a point to. i think it looks better than vegas's glow effect imo