Does anyone have any elegant ways of revealing black line drawings? I have a few that I have done and want to animate them on. I know I can't re-draw them at once, but even if they feel like they are "bleeding" on to a page. I was thinking of like the equivalent of "Erode" and then just reversing the transition, but I don't see erode as an effect.
"Bleeding" onto the page gave me the idea that you could use a large-scale fractal noise for a "depth" map for lens blur and run that from a large radius to zero. Or use levels to offset the white point of the fractal noise so as to get some parts coming in focus earlier than others.