[vtkusers] Trouble using VTK Widget with QVTK

Mathieu Westphal mathieu.westphal at kitware.com
Thu Jul 5 05:20:30 EDT 2018


QVTKOpenGLWindow in 8.1.0 and 8.1.1 is very stable and is used by all
VTK/Qt based application, like ParaView for example.

Problem 1 and Problem 2 are QTCreator related. I would suggest adding a
simple QWidget in Qt creator, and once you're finished,
juste change it manually in the .ui.

Regarding Problem 3, well the answer is in the question. Juste use a
vtkGenericOpenGLRenderWindow instead of a win32 specific.
The vtkGenericOpenGLRenderWindow implementation is newer and will work on
all platform.

See attached for a QVTKOpenGLWidget usage example (found in

Best regards,

Mathieu Westphal

On Thu, Jul 5, 2018 at 11:06 AM, andyjk <andrewkeeling at hotmail.com> wrote:

> Thanks
> I am on VTK 8-1
> I did try the qvtkOpenGLWidget but I have several problems, and I think I
> read it was still unstable.
> Problem 1: No QVTKOpenGLWidget in the QT designer - so I insert a
> qvtkwidget, then in the .ui file I manually change it to qvtkOpenGLWidget
> (this compiles fine).
> Problem 2: If I try to drag a generic OpenGL widget into a window in QT
> designer, the designer crashes and closes.
> Problem 3: Running the code from 1 gives me an error:
> QVTKOpenGLWidget requires a `vtkGenericOpenGLRenderWindow`. `
> vtkWin32OpenGLRenderWindow ` is not supported.
> I understand QVTKWidget is deprecated, but it also seems the OpenGL widget
> is too unstable at the moment ?
> --
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