As I have been working on my first batch of Blood Angel models (Dante, Librarian, and Sanguinary Guard), I have really enjoyed working on the power weapons and trying to get a decent looking effect on them. After taking a looking at several pictures of power weapons, I have come to like the coruscating power effect. It reminds me of those science museum electricity exhibits where there current travels up a glass tube and the electrical energy almost looks molten. It's a pretty cool sight to see.
The final step of the process was to go back and choose a mid range shade (I used Ice Blue here) and make a very watery wash out of it. Apply it to the "in-between" layers between your darkest shade and the white. Don't get it on either as you want to have very dark and very light portions. The purpose of this is to smooth out the transition from dark to light.
Viola! You have a power weapon. It's really a pretty easy procedure and you should be able to get the hang of it with a little practice. Again, if you are interested in seeing this on models, check out the links above of my Blood Angels models that are sporting these type of power weapons.
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