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A screenshot of the (old) Mudbox interface
|Developer(s)||Autodesk (Skymatter Ltd, prior to acquisition by Autodesk)|
|Stable release||2013 / April 2012|
|Operating system||Windows XP, Windows Vista, Windows 7, Mac OS X, Red Hat Enterprise Linux, Fedora Linux|
|Type||3D computer graphics|
Mudbox is a proprietary computer-based 3D sculpting and painting tool. Currently[update] developed by Autodesk, Mudbox was created by Skymatter, founded by former artists of Weta Digital, where it was first used to produce the 2005 Peter Jackson remake of King Kong. Mudbox's primary application is high-resolution digital sculpting, texture painting, and displacement and normal map creation, though it's also used as a design tool. The current version is Mudbox 2014.
Mudbox, originally named Skymatter, was created in New Zealand as the developers were working on The Lord of the Rings at Weta Digital. They created the software to expand their own toolsets, and was first used as a complete product on King Kong. The beta was released in May 2006, followed by version 1.0 in mid-February 2007. On August 6, 2007, Autodesk announced the acquisition of Skymatter Inc.  Mudbox is currently on version 7.
The Mudbox user interface is a 3D environment that allows the creation of movable cameras that can be bookmarked. Models created within the program typically start as a polygon mesh that can be manipulated with a variety of different tools. A model can be subdivided to increase its resolution and the number of polygons available to sculpt with. 3D layers allow the user to store different detail passes, blending them with multiplier sliders and layer masks. Using layers the user is able to sculpt and mould their 3D model without making permanent changes.
As a detailing app, Mudbox can import and export .obj, .fbx, 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.
The sculpting tool set contains an assortment of brushes with adjustable falloffs.
The use of 3D layers allows for design visualization, non-destructive sculpting, and high polygon counts. Since the layers combine additively, their ordering is unimportant for the final model and may be created arbitrarily. Curves can be created and projected on a mesh for use as precise masking. All of the standard transform and selection tools are here as well. Paint layers were added in Mudbox 2009.
Design visualization plays an important role in Mudbox's production value. Simple poly primitives can be created from within Mudbox, facilitating the creation of busts, props, terrain, etc. The typical workflow is to create a relatively simple (low polygon count) model in a 3D modeling application and then import it to Mudbox for sculpting.
Mudbox also includes stamps and stencils. Stencils work by overlaying a grayscale, or "alpha channel" image, such as a bump map, over the mesh. The artist can then project part or all of the image's detail onto the mesh through brush strokes, providing a method to quickly sculpt surface detail.
The underlying architecture of Mudbox was updated in Mudbox 2009 to allow the sculpting of models with larger polygon counts compared to earlier versions. In Mudbox 2009 3D painting and texturing features were introduced to allow artists to paint directly on their models in 3D. In addition, features to display the model with depth of field, and ambient occlusion were added for the release.
In Mudbox 2010, an application programming interface (API) was introduced via a software development kit (SDK). In addition, functionality to improve file interoperability with other 3D applications (Autodesk Maya, 3ds Max etc.) was added via the FBX file format.
Mudbox's interface includes menus, tabbed windows, and tool trays, and can be customized but only to a limited extent. It also provides keyboard shortcuts. The navigation in the 3D view is similar to those used in Autodesk Maya.
Mudbox currently operates on Windows XP (32 and 64 bit), Windows Vista (32 and 64 bit), Windows 7 Professional (32 and 64 bit), Linux 64-bit and Mac OS X.
On August 6, 2007, Autodesk, Inc. (NASDAQ: ADSK) announced that it signed a definitive agreement to acquire substantially all the assets of Skymatter, Inc., the developer of Mudbox 3D modeling software.
- October 2007, Autodesk released version 1.07 of Mudbox.
- October 2008, Autodesk released Mudbox 2009 (v2) of Mudbox.
- August 2009, Autodesk released Mudbox 2010 (v3) of Mudbox.
- March 2010, Autodesk released Mudbox 2011 (v4) of Mudbox.
- September 2010, Autodesk released Mudbox 2011 SAP (v4.5) of Mudbox.
- April 2011, Autodesk released Mudbox 2012 (v5) of Mudbox.
- April 2012, Autodesk released Mudbox 2013 (v6) of Mudbox.
- April 2013, Autodesk released Mudbox 2014 (v7) of Mudbox.
- ^ "Autodesk Signs Definitive Agreement to Acquire Skymatter, Makers of Mudbox 3D Brush-based Modeling Software.". Autodesk. 6 August 2007.
- Mudbox Homepage
- Mudbox Forums
- MudboxCentral Tutorials, News, Jobs, and More
- Mudbox Hub Tutorials and plug-in's
- Mudbox Masterclass videos from Siggraph (Wayne Robson)
- Mudbox Russian Community
- Mudbox video digital tutorials
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