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Ptex

Open Source

Ptex is a texture mapping system developed by Walt Disney Animation Studios for production-quality rendering. 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, and 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.