OpenGL rendering in background

[comp@xxxxxxx]

Hi!

It is possible to use OpenGL without any window manager (e.g. not
attaching to a drawing context with wglsetcurrent/glxsetcurrent)?
We need background rendering without user interface. The generated images
are copied from the display buffer and postprocessed by our app.

How to do this? Which OpenGL settings needed to enable background rendering?

Best regards,
Peter Breuer
comp@xxxxxxx