Filter Forge is a high-end plugin for Adobe Photoshop allowing computer artists to build their own filters. The key features of Filter Forge include the filter editor and a free online library of user-created filters, currently containing more than 13,300 filters.
All filters are adjustable, resolution-independent, support real-world HDRI lighting, and most of them can be seamlessly tiled. Also, filters can automatically generate diffuse, specular, bump, and normal maps, which are essential for 3D-model building. All filters are built in a visual node-based environment allowing users to connect familiar operations, such as blurs, gradients, color adjustments, distortions, or blending, into a network to combine their effects.