Autodesk Softimage, or simply Softimage () was a 3D computer graphics application, for producing 3D computer graphics, 3D modeling, and computer animation. Now owned by Autodesk and formerly titled Softimage|XSI, the software has been predominantly used in the film, video game, and advertising industries for creating computer generated characters, objects, and environments. Released in 2000 as the successor to Softimage3D, Softimage|XSI was developed by its eponymous company, then a subsidiary of Avid Technology. On October 23, 2008, Autodesk acquired the Softimage brand and 3D animation assets from Avid for approximately $35 million, thereby ending Softimage Co. as a distinct entity. In February 2009, Softimage|XSI was rebranded Autodesk Softimage. A free version of the software, called Softimage Mod Tool, was developed for the game modding community to create games using the Microsoft XNA toolset for PC and Xbox 360, or to create mods for games using Valve's Source engine, Epic Games's Unreal Engine and others. It was discontinued with the release of Softimage 2014. On March 4, 2014, it was announced that Autodesk Softimage would be discontinued after the release of the 2015 version, providing product support until April 30, 2016. Overview Autodesk Softimage is a 3D animation application comprising a suite of computer graphics tools. Modeling tools allow the generation of polygonal or NURBS models. Subdivision modeling requires no additional operators and works directly on the polygonal geometry. Each modeling operation is tracked by a construction history stack, which enables artists to work non-destructively. Operators in history stacks can be re-ordered, removed or changed at any time, and all adjustments propagate to the final model. Control rigs are created using bones with automatic IK, constraints and specialized solvers like spine or tail. Optionally, the ICE system can be used to create light-weight rigs in a node-based environment. The rigging process can be sped up through the use of adaptable biped and quadruped rigs, FaceRobot for facial rigs and automatic lip syncing. Animation features include layers and a mixer, which allows combining animation clips non-linearly. Animation operators are tracked in a construction history stack that is separate from the modeling stack, enabling users to change the underlying geometry of already animated characters and objects. MOTOR is a feature that transfers animation between characters, regardless of their size or proportions. GATOR can transfer attributes such as textures, UVs, weight maps or envelopes between different models. Softimage also contains tools to simulate particles,