[gl2ps] Offscreen-rendering with gl2ps?

[Andreas Weber]

Dear users and maintainers of gl2ps,

GNU Octave with the FLTK graphics_toolkit uses gl2ps to generate prints.
This works really fine but we have a long standing bugreport that Octave
isn't able to produce print without a visible figure
(https://savannah.gnu.org/bugs/?func=detailitem&item_id=33180)

Is it possible or does some of you have experience with
offscreen-rendering and gl2ps? If possible it would be really great to
use gl2ps even without a DSIPLAY (for example within a remote session
via ssh).
The solution should be crossplatform GNU/Linux, Windows, MacOS capable.

I had a quick look on OSMesa but wonder if this is the right way.

Any hints highly appreciated,
Andy