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PTEX PNG
File conversion

Convert PTEX to PNG

Verified by Adam B.· reviewed by FE Editorial ·updated Aug 21, 2026
QUICK ANSWER
Is it possible to convert PTEX to PNG?
Yes - PTEX converts to PNG.

Load the Ptex file in Mari or 3D-Coat and export the channel as .png, which flattens the per-face data into a standard bitmap. For a simple single-face .ptx you can also run ptxconvert in.ptx out.png from the open-source Ptex utilities.

Also to PNG: QOI · APM · PBM

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Tested on macOS, Windows & Linux
Last verified Sep 2026

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Why convert PTEX to PNG?

People want .png because Ptex only opens in specialized renderers, while a flat .png previews anywhere and drops into game engines or image editors. Converting means projecting the per-face Ptex texture onto a normal UV layout or an atlas so it can be saved as an ordinary picture.

How to convert PTEX to PNG

Foundry Mari PAID

Open the Ptex channel, then use Layers > Export Flattened (or the channel export) and pick .png as the file type to write a standard image.

3D-Coat PAID

In the Paint room with a Ptex-painted mesh, use the texture export to write the Ptex-based map out as .png on a UV atlas.

ptxconvert (Ptex utilities) OPEN-SOURCE

For a single-face file run ptxconvert in.ptx out.png. This open-source tool does not handle general multi-face Ptex files.

About these formats

.PTEX Ptex Texture File

A .ptex file is a per-face texture map made with Disney's Ptex texture system, which paints subdivision and polygon meshes without any UV layout. Each file holds a separate texture for…

Open .PTEX details →
.PNG Portable Network Graphics

A PNG (Portable Network Graphics) is a lossless raster image format. Every modern OS, browser, and image app opens PNGs natively - just double-click. The most common questions are not about…

Open .PNG details →

Quality & what to watch

  • Multi-face Ptex must be baked onto a UV layout first; ptxconvert alone only handles single-face files.
  • Baking to .png fixes the resolution, so the multi-resolution and seamless-filtering advantages of Ptex are lost.
  • .png is 8-bit per channel - high-dynamic-range displacement or float data will be clipped; use TIFF or EXR for those.

Frequently asked questions

Why can't I just open a `.ptex` file as an image?
Ptex stores one texture per face plus adjacency data, so it needs a renderer or texturing app to flatten it onto a viewable layout before it becomes a .png.
Will the PNG look the same as the Ptex in my render?
Close, but you lose Ptex's per-face resolution and seamless cross-face filtering, so tight seams may show at the baked resolution.
Is there a free way to do this?
The open-source ptxconvert utility handles single-face .ptx files; multi-face assets need Mari, 3D-Coat or Houdini to bake first.