Isn't it amazing just how someone actually registered an account here instead of on warcraft movies to ask this question to a community that doesn't know the direct answer instead of asking the author of the video.
Have no fear, v6o is here!
I've sent an PM to the author asking how to achieve the effect and if he could share the textures, if that's what they are.
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I stopped playing back World of Warcraft in 2010 and I have no plans on returning.
This is a dead account and if you want to continue any of my addons or make a fork then feel free to do so.
This is your permission slip.
If you need to contact me, do so on
Twitter @v6ooo
Best regards, v6.