#t=184s - Jumping to 3:04 shows what I'm talking about.
I'm a CS undergrad, so I'm not entirely new to dev, but something like an article that covers the generic non-platform/tech specific concepts behind it, would be really helpful. I previously made a basic 2D water demo, based on another article on GameDev.net: http://nauful.com/Qasim/Pani.html . Like the water demo, I wanted to try to do point-lighting in Flash/AS3 as well.