In photography and video, light matters. When we say we know all the good tricks, we mean it. The way the light and shadows appear on a person’s face can dramatically change their appearance.

Director Nacho Guzman released this fantastic teaser for a music video he’s just finished that very succinctly demonstrates how light can change features. It’s fascinating to watch, and something to keep in mind the next time you’re behind the camera.

via io9.com (click here) There are some great animated GIFs here, too, that are worth checking out.