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Found one file extension association related to Ptex and 1 file format developed specifically for use with Ptex.

Platform, operating system:  Multiplatform icon Multiplatform

Go to: Ptex description

Developer: Walt Disney Animation Studios

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Ptex picture


Developer / company: Walt Disney Animation Studios

Model with 2694 faces rendered with Ptex. No explicit UV assignment was used. The largest texture layer, the fine-scale displacements, has 836 million texels stored in a single Ptex file with individual face resolutions ranging from 64 x 64 to 2048 x 2048 texels. No seams are visible across faces, even under close magnification.


There were many drawbacks to traditional texture mapping methods that led to the development of Ptex:

  • UV assignment was a tedious task, and making good UVs on complex models was difficult.
  • Texture seams could produce visible artifacts especially with displacement maps.
  • Large numbers of texture files were required creating a significant I/O bottleneck.

Ptex addresses all these issues by eliminating UV assignment, providing seamless filtering, and allowing any number of textures to be stored in a single file.

Ptex was used on virtually every surface in the feature film Bolt, and is now the primary texture mapping method for all productions at Walt Disney Animation Studios.

Major Features

  • Supports Catmull-Clark subdivision surfaces (including quad and non-quad faces), Loop subdivision surfaces, and polymeshes (either all-quad or all-triangle).
  • 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.

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Sample related conversions

Ptex picturePtex works with the following file extensions:

Note: You can click on any file extension link from the list below, to view its detailed information. The list of extensions used or otherwise associated with the application may not be complete, because many common file extensions on our website, such as jpg (pictures) or txt (text files), can be opened by a large number of applications, or are too general file format. However most, if not all directly associated file extensions should be listed with its appropriate program. Although its likely, that some file extensions may be missing from the list of associated file extensions with the application, yet they can be opened, be part of, or otherwise be associated with the program.

Ptex default file extension associations

ptx file icon.ptx

Comparison table of actions that Ptex can perform with its associated file type beta

This table might not contain all possible associated or supported file types or may contain incorrect data.
If you need more information please contact the developers of Ptex (Walt Disney Animation Studios), or check out their product website.

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