Ptex
From polycount
Ptex is a per-face texture mapping method developed by Disney Its an alternative to UV-Mapping. Mostly used in offline rendering there was an attempt to adapt it to realtime. While it works there is a performance drawback
Further Reading
Siggraph paper from Nvidia: http://developer.download.nvidia.com/assets/gamedev/docs/RealtimePtex-siggraph2011.pdf https://ptex.us/index.html
