[vtkusers] VTK, Qt,VtkQt and stereoRendering

[Sean McInerney]

Hi Patrice,

   You definitely need to call renwin->StereoCapableWindowOn() *before* 
calling show(), since this will obviously trigger a call to Render(). 
Also note that adding Props to a Renderer that has already been added to 
a RenderWindow will also trigger a call to Render() (and/or probably 
show()).

-Sean

Patrice Aussems wrote:
> Hi, 
> 
> I'm using Qt, Vtk and the VtkQt-library of Denis Shamoni (I got the same
> problem when I use the Matthis Koenig  version) to create an application
> that support stereo Rendering.
> 
> When I exectute the 
> renwin->StereoCapableWindowOn() method I got this following error : 
> 
> Warning: In /local/src/VTK/Rendering/vtkXOpenGLRenderWindow.cxx, line
> 404
> vtkXOpenGLRenderWindow (0x8286ff4): Requesting a StereoCapableWindow
> must be performed before the window is realized, i.e. before a render.
> 
> I know that i have to execute this method before the window is rendered
> but i did not use render() in the  source code before.
> 
> 
> 
> here is a part of my source code :
> 
> 
> QApplication app( argc, argv );
> QWidget *widg1 = new QWidget;
> widg1->resize(1000, 500);
> widg1->show();
> 
> ren2 = vtkRenderer::New();
> ren2->AddActor(outlineActorl);
> ren2->AddVolume(newvollost);
> ren2->SetBackground(1,1,1);
> ren2->SetActiveCamera(Cameralost);
> 
> renwin2 = new vtkQtRenderWindow();
> renwin2->StereoCapableWindowOn(); 
> renwin2->AddRenderer(ren2);
> renwin2->show();
> 
> 
> Can anybody help me??
> 
> Regards, 
> 
> Patrice Aussems
> 
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