Here is a short tutorial on creating a fog effect using Adobe After Effects CC 2015. You can use this fog effect to add some drama to your footage or alter the weather of your shot (Figure 1, below).

Photoshop cc tutorial showing how to create a ghostly, creepy, text effect emanating from thick fog.

Photoshop CS5 tutorial showing how to create an atmospheric, spooky text effect that looks like it's being lit by a ...