This is really a fantastic piece of software, I highly recommend everyone checking it out if you're into pattern/texture map creation.
“Incredibly powerful texture engine.”
“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.”