Mudbox is a 3D sculpting tool, akin to Zbrush. Currently developed by Autodesk Limited, Mudbox was originated by Skymatter, founded by former artists of Weta Digital, where it was first used to produce the 2005 Peter Jackson remake of King Kong. With its interface simplified to allow for a more intuitive experience, Mudbox's primary application is high-res digital sculpting, displacement and normal map creation, though it also used as a design tool. The current version is Mudbox 2009 (released October 2008). As a detailing app, Mudbox can import and export .obj and .bio files, as well as its own .mud format. A standard workflow is to import a low-resolution mesh with good edge flow then subdivide and sculpt until finally exporting a displacement or normal map for use within a rendering package. Subdivision of models occurs using the Catmull-Clark subdivision algorithm.