Hello,
An application for Pantex texture extraction has indeed been added. It uses the filter that was already available in the API, and will be included in the next release.
In the meantime, the easiest way to use this application is to use the develop binary packages( available here ). A new package is generated every time something is added in the “develop” branch.
If instead you want to compile OTB, you can find some ressources here.
Cédric