hey guys, I was recently working through the sobel edge shader tutorial when I ran into a big error. After I had finished I noticed my depth exclusion pass did not work.

[IMG] Uploaded with ImageShack.us[/IMG]

As you can see the edges are still drawn on even in the skydome, and the distance.
here's a picture of my material editor view(the depth exclusion pass)

[IMG][/IMG]

and here is the link for the tutorial http://udn.epicgames.com/Three/Devel...html#Downloads

any help would be greatly appreciated.