For Arnold 5
Welcome to the Arnold for Katana User Guide. The Foundry's Katana (originally developed by Sony Pictures Imageworks) is a production tool for lighting, look development, and scene composition aimed at working with arbitrarily complex scenes.
Solid Angle provides the KtoA plugin to Katana to interact with Arnold, and Katana also ships with a version of KtoA among its support for production renderers.
Arnold Answers is a reputation-based forum where Arnold users of all kinds can ask their colleagues and peers questions related to Arnold.
The Arnold for Katana User Guide consists of the following sections: