"Let's together imagine a typical stand-alone house. We have a couple of rooms, each with a few windows facing out in the cardinal directions. It's 11 a.m. on a clear day. The sun is overhead at a slight angle. If we recall second-grade science, the sun rises in the East and sets in the West, and, for the sake of simplicity, will reach its highest point at noon.
Here's our house. Cute, isn't it? Let's say that we have a cat sitting in the windowsill in the room on the east side, basking in the sun, enjoying herself. There's plenty of light shimmering down on her, and we feel as though it'll be easy to get some perfectly illuminated shots. We point our device at her while she's in the window and snap the shot. Here's what happens:"
Image Source: Andrew Marttila