Ptex, the texture mapping system developed by Walt Disney Animation Studios for production-quality rendering is now released as free open source.
– No UV assignment is required! Ptex applies a separate texture to each face of a subdivision or polygon mesh.
– The Ptex file format can efficiently store hundreds of thousands of texture images in a single file.
– The Ptex API provides cached file I/O and high-quality filtering – everything that is needed to easily add Ptex support to a production-quality renderer or texture authoring application.