[vtkusers] CrystalEyes stereo on an SGI Prism

Jens Thomas j.m.h.thomas at dl.ac.uk
Wed Jun 28 11:24:21 EDT 2006

Hi Michael,

Michael Scarpa wrote:
> Jens,
> On Wed, Jun 28, 2006 at 03:29:07PM +0100, Jens Thomas wrote:
>> I'm trying to get VTK to work in stereo in CrystalEyes mode on an SGI 
>> Prism Extreme with 4 ATI FireGL X3 graphics pipelines and a Fakespace 
>> 1280x1024 Stereo Projection system.
>> I've enabled the relevant bits in the program I'm using so that it 
>> enables CrystalEyes stereo in the vtkRenderWindow, but I'm at a bit of a 
>> loss as to what I need to configure to tell VTK to take advantage of the 
>> 4 pipes and to use the different projectors for the different eyes.
>> Currently, when I try it, I get the following message:
>> Adjusting stereo mode on a window that does not support stereo type 
>> CrystalEyes is not possible.
>> If any one has any experience of doing this and can give me some 
>> pointers of how to go about this, I'd be most grateful.
> Are you making sure that the render window you create is capable of
> producing stereo images?  If I'm not mistaken, you have to call
> vtkRenderWindow::StereoCapableWindowOn() (see VTK online documentation
> for details) *before* any rendering is done.  Otherwise VTK complains if
> you try to activate stereo rendering, because by default it does not
> create a stereo-capable window.  I hope this helps!
> Kind regards,
> Michael
Many thanks for the quick reply.

I think I'm getting this bit right, because if I change the 
SetStereoTypeToCrystalEyes call to SetStereoTypeToRedBlue, then I get 
Red/Blue stereo rendering, so I think I've correctly enabled the stereo 
capability for the vtkRenderWindow.

Best wishes,


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