Just made a quick and dirty glow effect for Unity sprites.
A while ago, working on Breached, I’ve been figuring out how to visualize a weird in-game creature called “Keeper”. It was something like an electromagnetic anomaly, stalking around and hunting for player.
You’ve probably heard about blend modes available in image and video editing tools like Photoshop or After Effects. It is an important technique for content creation and has long since become an integral part of them.