OK I have an advanced lighting question (advanced for me anyhow):
The only way I know how to do lighting is to have a dark layer on top of the playfield and add white elements to it with "destination over" rendering.. (or something like that)
What I am trying to do is have lighting that only affects a middle layer and not the background.
The background is space. So I only want the lighting to affect the spaceship sprites... not the stars and stuff behind them...