Depth Map in SS3

In the past (SS2, I believe) I recall the ability to create a depth map with a standard Luxology setting called "Depth". It's been a while since I needed to do this and when I logged into SS3, it seems that the preset is no longer available? Is this the case?

Here's a link to where post where I originally learned the technique:

http://communities.bentley.com/products/microstation/microstation_visualization/b/luxology-blog/archive/2009/01/23/depth-of-field-effects-using-depth-maps

Thanks!