I'm drawing a bunch of almost transparent lines (well, beziers) on a black background. When I take a screenshot, I get what I want; where only one line is drawn, it's almost invisible, but where they overlap you get some nice contrasting light bits. Now I'm trying to do a bunch of these, but I can't figure out how to get the same look while saving out: I've tried save() and saveFrame(), and both are giving me less contrast. I'm completely stumped here - as far as I can tell, I should be getting the same thing from save() as if I take a screenshot, no? I'm using 1% alpha, if that's important, and I'm not drawing on images, it's all directly on the display window.
For reference, here's a screenshot, looking how I want:
Screenshot
and here's the exact same thing saved out:
Saved Image
