Read the license

Read the Ptex License before downloading this software.

Source code

The Ptex API is hosted as free open source at and discussed at

Browse the change history.

Ptex Utilities

Download utilities to assist in the use of Ptex in production at

Release History

v2.4.2Aug 4, 2022API: Windows Clang/14 support, visibility fixes and cmake enhancements.
v2.4.1Aug 3, 2021API: Windows symbol visibility fixes.
v2.4.0May 18, 2021API: headers and DSOs hide non-API symbols by default.
v2.3.2Mar 8, 2019Minor maintenance. Windows fixes.
v2.3.0Apr 10, 2018Minor maintenance. Version number rollup to sync w/ in-house version.
v2.1.33Jan 24, 2018Security fix, build fixes.
v2.1.28Apr 4, 2016API: MetaData::findKey, const neighborhood check improvement, build/portability fixes.
v2.1.10Dec 8, 2015New cache architecture for better threading. New cache stats API. New edge filter mode for tangent-space maps. Optimizations.
v2.0.41Apr 9, 2013Limit I/O buffer size, avoid float/double conversion, remove LOD bias on bilinear filter, silence warnings.
v2.0.37Apr 8, 2013Cmake support, compiler warnings, WIN32 export control.
v2.0.33Dec 14, 2011Fixed crash when rendering triangle textures that have no stored mipmaps.
v2.0.30May 9, 2011Critical bug fix: threading crash when using multiple caches.
v2.0.29May 2, 2011Minor bug fixes. API change: added PtexPtr::reset method.
v2.0.22May 28, 2010Windows compatibility fixes, minor bug fixes
v2.0.0Nov 23, 2009Initial release