[vtkusers] Render glitch on some computers

Waldo Valenzuela waldo.valenzuela at hotmail.com
Wed Aug 16 14:10:38 EDT 2017

Hi Romain,

This is a know problem of VTK with high resolution screens, in mac OSX for example, you need to add this to the QVTKWidget,

#ifdef Q_OS_OSX

void disableGLHiDPI( long a_id )
    NSView* view = reinterpret_cast<NSView*>( a_id );
    [view setWantsBestResolutionOpenGLSurface:NO];



On 16 Aug 2017, at 16:22, Romain LEGUAY <romain.leguay at gmail.com<mailto:romain.leguay at gmail.com>> wrote:

Hello everyone,

I create a small Qt (5.8 and 5.9) and VTK (7.1.1) application to display some geometries (for example STL files or VTU series).

I have a problem on some computers (a mac pro retina 15" mid-2015 on mac os 10.10.5 (Yosemite) with a graphic cards amd radeon r9 m370x 2048MB): the QVtkWidget is not rendered correctly.

I attach the screen shot of my app. The problem always appears on the main screen of the notebook but not on external monitor.

Is there a way to debug this kind of bugs?

Thank you


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