Filter Forge - Photoshop Plugin to Create Your Own Filters. A standalone program and a plugin for Adobe Photoshop and Affinity Photo that allows you to apply thousands of photo effects and generate seamless PBR textures for Unity3D, Unreal and other 3D engines.. Filter Forge, filter, Photoshop, plugin, plugins, plug-in, plug-ins, filters, Photoshop plugin, Affinity, Affinity plugin, effects, textures, PBR, creative, photo effect, watercolor painting effect, textures for Unity, textures for Unity3D, textures for Unreal, textures for UE4, albedo, height map, normal map, occlusion, seamless