Unreal Development Kit: Materials; An Introduction with Waylon Brinck is great. Just finished this DVD and wow, what a ton of information. I didn't think I really needed this DVD initially since I knew well how to work in the HyperShade in Maya and the Material editor in UDK is similar.
I'm really happy with how much I learned and how many gray areas were cleared up. I love how he broke down the math in a clear way. Some points I was like ARGH of course! now that makes sense! For example how the math behind how "levels" works in Photoshop. Not as complicated as I thought, totally get it.
This DVD is great for beginner-ish to advanced artist comfortable in another 3D app who want to get a solid base for materials in UDK.
This DVD well worth it. Only negative is the lessons are a little dry. I could only watch a few chapters a day, even tho I wanted to watch more.
4.5 stars could only be better with some jokes spattered in there. Top quality instruction, lots of practical, useful examples. Very happy with this purchase. Recommend.