Modular - Clouds

Made a quick panning cloud material. I made a cloud texture and alpha in photoshop and took it into UDK and slapped it on a plane. In the material editor I just panned the texture and added a depth bias alpha to help with the falloff on the rocks. Layered a few of those textured planes on top of each other for depth and wham-o. Easy stuff, but it helps a whole lot. A little before and after of the depth bias alpha action...
Before:

After:

That harsh edge along the rocks is gone. woo.