A couple days ago, I was supposed to use a camo pattern on a flyer I was making for a friend, so I tried finding a decent camo pattern generator. I didn't have much luck though, so I played around with Photoshop to find my own easy way to create camo patterns.
My initial idea was to use four layers, that's one background and three additional layers, with slightly different colors. Then use a cloud filter on the layer masks and tune its levels until it's starting to form solid shapes.
While this produced acceptable results, I still wasn't 100% happy with the way the patterns looked.
Last night I started turning that workflow into a Photoshop macro, and while I was at it, I enhanced it a bit with filters, and the results were getting a lot better. Then I decided to add another function to the macro, that can optionally turn the oldschool camo pattern into a digital camo pattern. I'm still tweaking that last part, but I think the macro works good enough to release it to the public, maybe some of you find some use for it.
It's compatible with Photoshop CS3 and up. The workflow is fairly simple. Your background color will become your background color and your foreground color will become the first camo color. The remaining two colors can be set during the macro.
For best results, I suggest an image size of around 1024x1024. Oh, and the generated pattern is also seamless.