US core mobile publisher Machine Zone is bulking up its technical team.

It's hired ex-OnLive, Intel and Nvidia graphics expert Sim Dietrich as its senior technical director.

The Bay Area outfit is heavily into the development of an as-yet-unannounced mobile MMOG, which will be released in early 2013.

Give it sparkle

At OnLive, Dietrich managed its platform, UI, engineering and game performance teams.

He also has his name on several patents in areas such as low-latency processing, video processing, shading languages and anti-aliasing.

"Sim is a legend in the 3D graphics world and will be a tremendous asset to Machine Zone, helping us to evolve our platform and create the most graphically advanced mobile MMO games available," said CEO Gabriel Leydon.

"Machine Zone's technology is charting new waters in the mobile gaming space. I'm thrilled to help drive this technology further with such a talented team," added Dietrich.