Matcaps Forever is a Blender add-on from Take Refuge 3D that randomly generates matcaps. It keeps producing new matcaps until you find one you like, then lets you tweak it. Automated scene generation creates a matcap scene with randomized lighting and materials and can produce dozens of matcaps in seconds, aimed at quick previews, sculpting, and hardsurface modelling.
You can adjust the strength, color, and type of the key, fill, and back lights, and add an optional ground plane with a checker texture. Controls sit within the Blender interface, covering the process from generation to final render. Renders export in EXR and PNG formats to a file path you choose, so you can feed the result into other 3D software that supports matcaps, such as ZBrush or Plasticity.
It works with Blender 4.0 through 5.0 and is tested in Blender 5. Version 1.1 added support for Extensions in Blender 4.2 and later. The add-on is released under the GPL license, and a demo video is available.