Halftone is one of those weird effects that you never know you're going to need until you need it. It's based on the way comics and the like were printed, where everything got reduced to dots, back in the days before we had pixels. It's great for creating Sixties-style credits sequences, and, ummm, any other ideas? Still, it's entertaining! This hasn't got any parameters yet, but we're playing around to see what we can mess about with.
Usual disclaimers apply: this is really early dev code, not representative of final quality, and we don't have a release date for it.