[vtk-developers] QVTKWidget with virtualgl

Clinton Stimpson clinton at elemtech.com
Tue Apr 7 18:02:23 EDT 2009


Could be a bug in vglrun ??
I don't know what readback you're referring to.  Its supposed to render 
directly.

Clint

shiva sitamraju wrote:
> Hi ,
>
> We are using QVTKWidget in our application and running our application 
> remotely using vglrun.  Without using vglrun everything is fine. I 
> dont know if this is a problem with vtk or virtualgl, but here are the 
> issues:
>
> 1. With vglrun the QVTKWidget display isn't getting refreshed properly 
> (see the attached image)
> 2. Also I see that QVTKWidget is doing a readback and then painting 
> the qtwidget everytime refresh is performed.
> I guess this readback maybe causing problems with virtualgl. Is there 
> a way to make VTK directly render to a qt opengl context instead of 
> doing a readback.
>
> Thanks,
> Shiva
>
>
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