Re: Creating "veins" effect in AE

play around with the advanced lightning effect. i think several layers of that could get you pretty close to that kind of texture.

animating the decay property can get them to grow on/off.

for compositing onto an image like a face, look at some tutorials like this one on videocopilot:

http://www.videocopilot.net/tutorials/the_healer/

Kevin Camp
Senior Designer
KCPQ, KMYQ & KRCW