It's covered in this tutorial. [ame="http://www.youtube.com/watch?v=i2XmTbfIJ3s&list=PLZlv_N0_O1gaCL2XjKluO7N2Pmmw9pvhE"]Materials - 10 - Dynamic Material Instances, Pt2 - YouTube[/ame]
the video just makes it look that more kickass the stainglass with the light coming through it is amazing this is going to make hl2 look 10 times better.
the art institute of pittsburgh is one of the few that are actually pretty good as far as I know Marnik, there's at least 10 people working here that graduated there.