Here are some ini tweaks that can be done on highend systems to really improve the look of the game. I tried it on mine and it looks awesome! The LOD issues are gone and the grass popup is no longer an issue!: )
Before (offical PC Max Settings):http://img479.imageshack.us/img479/8363/0787d372e26en.jpg
After (with INI Tweaks):http://img468.imageshack.us/img468/2774/f542870dc74gr.jpg
Here is how you do it:
(got it from the Official Forum)
As for water, get some more Oblivion goodness out of it my modding:
And when you want more shadows...
change that up to 10, seems that 7 or 8 seems to work best...I use 7 and it looks MUCH better. If you increase it above 7 or 8...then the reflections on the water will start to look a little strange. To somewhat fix the water, change this:
uNumDepthGrids = 1 (it's 3 by default).
They are working on a better fix, but this helps somewhat.
(can be changed up to 50)
uGridDistantCount controls how much of the actual detailed game world is loaded at a time, and uGridsToLoad controls how much it will move the boundaries every time you move in and out of an area.
Fair warning guys, it takes MUCH longer to load a save game (if you're outside) if you increase the Grid options.
Here is what one of the devs said about the above change.
Yeah if you have a lot of RAM, this is a good change to make. There are tons of tweaks you can make to the game, but there's only so much space in an options menu