Re: [GtkGLExt] off-screen rendering

["Christophe Dehais" <christophe dehais gmail com>]

On Nov 30, 2007 5:16 PM, Christophe Dehais <christophe dehais gmail com> wrote:
> Then something like this in my main() does what I need:
>
>     context = gdk_gl_context_get_current();
>     if (!gdk_gl_drawable_gl_begin (pixmap, context)) {
>         printf ("*** problem beginning OpenGL operations\n");
>         return 0;
>     }
>     printf ("Direct rendering ?: %d\n", gdk_gl_context_is_direct (context));
>
>     do_some_processing_or_drawing_using_opengl ();
>
>     gdk_gl_drawable_gl_end (pixmap);
>

where of course
pixmap = init_offline_context (width, height);

width and height can even be 1 if you e.g. intend to use FBOs instead
of the default OpenGL framebuffer.


C.