A few years ago Disney were working on simulating bumpmaps on touch-screens [1] using dynamic variation of friction achieved using electrovibration [2], but I'v

A few years ago Disney were working on simulating bumpmaps on touch-screens [1] using dynamic variation of friction achieved using electrovibration [2], but I've not heard anything about it recently. I wonder what happened to the research. [1] https://www.disneyresearch.com/project/3d-touch-surfaces/ https://www.disneyresearch.com/project/3d-touch-surfaces/ [2] http://www.olivierbau.com/teslatouch.php http://www.olivierbau.com/teslatouch.php