[vtkusers] Rendering a Window on Screen with vtkOpenVRRenderWindow

[Ken Martin]

If you need it embedded into a Qt app you can do it the same basic way the
OpenVR plugin in paraview does it.  I think it relies on you having a
vtk/qt window in your app (already up and displayed) and then using that as
the HelperWindow. SOme snippets of code (and a lot you don;t need) can be
found here

https://gitlab.kitware.com/paraview/paraview/blob/master/Plugins/OpenVR/vtkPVOpenVRHelper.cxx#L591

On Wed, Feb 28, 2018 at 9:36 PM, lmkkp <lmkkpvtk at 163.com> wrote:

> How can I render a window on screen with vtkOpenVRRenderWindow?
> The relevant code in VTK8.1 is following:
>        this->HelperWindow->SetDisplayId(this->GetGenericDisplayId());
>        this->HelperWindow->SetOffScreenRendering(1);//I tried to comment
> out this line,
>                                                                   //then a
> black window appeared on the screen.
>                                                                 //This
> window did not do any rendering.
>        this->HelperWindow->Initialize();
> The relevant code using sdl in VTK8.0 is following:
>     this->WindowId = SDL_CreateWindow( this->WindowName,
>         this->Position[0], this->Position[1],
>         this->Size[0] / 2, this->Size[1] / 2,
>         unWindowFlags );
> I want the 8.1 version to be the same as the 8.0 version on the desktop to
> display the rendering window and embedded into the qt main window.
> Ps: I can not embed the 8.0 version's sdl window into qt window because
> some strange errors.
> Thanks very much.
>
>
>
>
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-- 
Ken Martin PhD
Distinguished Engineer
Kitware Inc.
101 East Weaver Street
Carrboro, North Carolina
27510 USA

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