Why the weird title? Well, I mean its my blog after all, but OK, stop acting like a teenager.

When I was in high school, I learned that light refraction causes the edges of shadows to be softer. Next time you see a shadow, take notice and you will see that. Sometimes in pictures I let the shadows stay soft on the edges and at other times I harden them. These three below are examples of where I have hardened the shadow to make it seem like it has been drawn on: