VTK -> image file without window.

Vamsidhar Juvvigunta vamsidha at merl.com
Mon Jun 28 21:24:25 EDT 1999

> I'm using OpenGL (not Mesa) on Digital Unix. From what I gather, I can't
> use this to do what I want since I need to get a window up before I can

  I think a GL Rendering context can be tied to a pixmap too. I guess the
easiest way now is to see where the glX context calls get made and see if
you can allocate a pixmap and tie it to that.

> >I've been using vtk for volume rendering, which for large datasets is
> >either not real time or is at a very poor resolution. I would like to be
> >able to render directly to an array (without opening a window) so that I
> >can write an MPI program to run on multiple computers each calculating
> >from a different camera pos. 

If you'd rather do this on NT. You can use the win32OffscreenRenderer. I
noticed that such a class exists. MPI on NT should work the same. Or you
can look at the source code of that one and make it work for Xwindows too.

my 2c


This is the private VTK discussion list.  Please keep messages on-topic.
Check the FAQ at: <http://www.automatrix.com/cgi-bin/vtkfaq>
To UNSUBSCRIBE, send message body containing "unsubscribe vtkusers" to
<majordomo at gsao.med.ge.com>.  For help, send message body containing
"info vtkusers" to the same address.     Live long and prosper.

More information about the vtkusers mailing list