it would be pretty stupid of them to make that claim if they just photoshopped them
True, but game companies are rather famous for promising features during the making of the game that suddenly disappear when the game is out. Who can say if all those features are real and not just a way to attract attention?
Also I agree with Murdoch... if they want realism with that glow effect they aren't doing a very good job. It doesn't looks real or at least good... not even for a fantasy game. It should be much more subtle and visible only on close surfaces that reflect a lot of light. In those screenshots it's everywhere... on the tree leaves, on the cave walls, even on the clouds! That's what made me think it's the glow filter from Photoshop.
Edit:
I've hunted for some Morrowind screens on the web (so I would be somewhat closer to the subject) and modified them:
http://img.photobucket.com/albums/v635/sfg/mor2.jpg
http://img.photobucket.com/albums/v635/sfg/mor1.jpg
Well, pull my nipples and call me Rita if they don't look very much like the Oblivion screens. The glow looks plain and it's applied everywhere! Correct me if I'm wrong, but this "Bloom" feature shouldn't be present only on the objects? Then what the hell is doing on the clouds? I kind of doubt the clouds are objects too! Also note that in the screenshots I posted the parts that aren't covered by the glow have a slight blur to them (that's part of the diffuse glow filter), just like in the Oblivion ones.
Please, Bethesda, go back to making hockey games! Technology and realism my ass! More like:
-Hey, artist guy, can you make these screenshots look better?
-Sure, I'll just use this nifty batch tool and apply diffuse glow on all of them in a jiffy!
-Great, good thing we've hired you!
If I'm wrong, and this feature will turn out to be true, I'm gonna eat my Photoshop CD and then go puke it in front of the Adobe headquarters.
But, hey, look at the bright side (no pun intended): if it's true, and considering the same engine will be used to make Fallout 3, we'll have a glowing post-nuclear game! Maybe they'll even sell it in a glow-in-the-dark box!
Fucking Bethesda in the ass,
FeelTheRads.