[vtkusers] Hide XWindow when offscreen-rendering

[Kevin H. Hobbs]

On 04/27/2010 10:03 AM, Lars Friedrich Lars wrote:
> Hello,
> 
> I would like to know whether or not it is possible to hide the X-window automatically generated by vtkXOpenGLRenderWindow on Linux systems? For example the attached code below runs without popping up a window on MSWindows, but pops up the window on Linux.
> 
> Does someone know how I could switch the XWindow invisible? Is there a possibility to do this with 'x-commands'? For example in MSWindows I could theoretically get the handle the window and then call some API function to set the window invisible. Is there a similar possibility when using vtkXOpenGLRenderWindow?
> 
> Thank you!
> 
> regards,
> 
> lars
> 

Please see :

http://www.vtk.org/Wiki/VTK/Examples/OffScreenRendering

With VTK Mesa and OSMesa you can run the program in the above link
without any graphics hardware nor even an X server running.

With an alternate Xserver you can run a VTK program without displaying
to the real screen or without any graphics hardware.

  vncserver :89 -geometry 1280x1024 -depth 24  > vncserver.txt 2>&1 &
  export DISPLAY=:89
  glxgears
  vncserver -kill :89

I believe there are other options but I don't really understand them.

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