This is really a fantastic piece of software, I highly recommend everyone checking it out if you're into pattern/texture map creation.
“Filter Forge is an incredibly powerful new Photoshop Plugin. It's simply amazing. It gives you the power to create your own filters (you must run them from inside Filter Forge though) without any programming knowledge at all.”
“For 3D modelers, Filter Forge is a dream come true. It creates seamless textures with a single mouse click. The professional version creates the following map types for any texture: bump, normal, specular strength, specular exponent, diffuse, metallic, and alpha. The same filter can be used to generate any resolution, since filters are procedural.”