Disney’s PTex now open-source
January 18th, 2010
Disney has just release previously discussed PTex under an open-source (BSD) license and made it publicly available to all.
The new open source library supports Catmull-Clark subdivision surfaces (including quad and non-quad faces), Loop subdivision surfaces and polymeshes (either all-quad or all-triangle). Also, several data types are supported including 8 or 16-bit integer, float, and half-precision float. An arbitrary number of channels can be stored in a Ptex file. Arbitrary meta data can be stored in the Ptex file and accessed through the memory-managed cache.
The source code is available in a github repository, and you can watch a demonstration of PTex in use after the break.
Ptex Overview. via CGSociety
Randall Hand on 
VizWorld.com 
Hello Randall,
Do you know if PTEX is now being used more broadly across Disney and Pixar’s other feature films? If it allows an arbitrary number of channels then it could be quite useful in improving workflow speed. Also have you heard if it has made it’s way to 3dsMAX?
Cheers,
William
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@William
From recent presentations by disney, it seems PTEX is used pretty widely is almost all of the Disney/Pixar films as the preferred UV mapping solution. however, I’m not aware of any ‘easy’ way to get it into 3dsmax yet.