Description:

Metisse is an experimental X desktop with some OpenGL capacity. It
consists of a virtual X server called Xwnc, a special version of FVWM,
and a FVWM module FvwmAmetista. Xwnc is a mix of Xvnc and XDarwin. It
draws nothing on your screen; everything is drawn into pixmaps.
Similarly to Xvnc, but with a different protocol, Xwnc can send these
pixmaps (and other information) to a "viewer". FvwmAmetista is such a
viewer; it uses OpenGL for rendering the X desktop into a window of a
"regular" 3D accelerated X server.