@gts6 To be honest with you, ZBrush seems to me a "very hostile" software, apart from its interface. These "3D brushes" are specific to ZBrush, and, encoded in binary, that only ZBrush can "decrypt". It is as if you pretend to use Photoshop "brushes", in ".abr" format in, for example, an Office Excel: It will not understand anything, since it is an "internal and proprietary" format. There is no such thing as "alpha channel" to do it in png, tiff or psd. You'd better forget about it. 🙂