I noticed the performance script that runs to lower the quality when your system start lagging (I pretty much maxed out quality in the demo, like the screenshots I posted again) due to low FPS. That was really cool (though I wonder if you have to customize the script according to a game or is that automatic for every game?).

I am thinking that I will have to create a small, DARK, level to actually see most shaders (like bump mapping) in action. The Island demo is good enough to show the scale and the vegetation.. I want to see the shaders in action properly though. Oh well, it will help me learn if I do it myself.. :P