PTM File - opening and understanding

Did your computer fail to open a PTM file? We explain what they are used for and recommend software that we know can open or otherwise handle your .PTM files.

What is a PTM file?

The .ptm file extension or the polynomial texture map file extension is a conventional texture map that allows enhanced image quality and allows mapping of varying colors to provide more depth and variance in the outcome of the image. PTM files store second-order bi-quadratic polynomial coefficients per pixel. Compared to a typical picture that store color per pixel, .ptm store image data that can be dynamic depending on the set up of the environment of the image. The polynomial coefficient of the .ptm undergoes changes. The appearance of the picture or image will change based on either light or viewing position. PTM works exactly like lenticular printed images, but in computer data form.

How to open PTM files

You will need a program compatible with the specific file you are trying to open, as different programs may use files with file extension PTM for different purposes.

While we have not verified the apps ourselves yet, our users have suggested 10 different PTM openers which you will find listed below.

Suggest another file format using extension PTM

While we know of one file format using the .PTM file extension, there may be more. It is widespread that different programs use files with the same file extension for very different types of data. Please let us know if you are aware of a different kind of .PTM file.

Various viewers for this file format

These apps are known to open certain types of PTM files. Remember, different programs may use PTM files for different purposes, so you may need to try out a few of them to be able to open your specific file.

WinampWinampUser submitted
jetAudiojetAudioUser submitted
Face Off MaxFace Off MaxUser submitted
OpenMPT / ModPlug TrackerOpenMPT / ModPlug TrackerUser submitted
SqrSoft Advanced CrossfadingSqrSoft Advanced CrossfadingUser submitted
SHOUTcast Source DSPSHOUTcast Source DSPUser submitted
Winamp Detector Plug-inWinamp Detector Plug-inUser submitted
ModPlug PlayerModPlug PlayerUser submitted
ITN ConverterITN ConverterUser submitted
Media Player Classic frMedia Player Classic frUser submitted
We have not verified any software that we know for certain will work with PTM-files on Mac. If you know one, please use the 'Suggest a program' link below and tell us about it!
We have not verified any web services that we know for certain will work with PTM-files. If you know one, please use the 'Suggest a program' link below and tell us about it!