[vtk-developers] Strange renderering with mixed polydata/volume with QVTKOpenGLWidget

[Elvis Stansvik]

2017-05-23 11:35 GMT+02:00 Elvis Stansvik <elvis.stansvik at orexplore.com>:
> 2017-05-22 16:43 GMT+02:00 Utkarsh Ayachit <utkarsh.ayachit at kitware.com>:
>>> The test case I sent was just that.
>>
>>
>> Sorry, it got lost in my inbox. found it :).
>>
>> Attached is another patch. This tries a different approach to addressing the
>> alpha issue. Leaving the QSurfaceFormat unchanged, can you try the attached
>> patch and tell me how it goes? It's a patch for VTK.
>
> I applied the patch to the VTK 8.0.0.rc1 I'm using on the Mac, and can
> confirm that this fixes the problem: I no longer have to use
> setAlphaBufferSize(0) on the QSurfaceFormat to avoid the alpha
> problem. Thanks!

Will this go into rc2?

Elvis

>
> I still haven't gotten back the Win 8.1/nVidia machine, so I haven't
> been able to verify the setAlphaBufferSize(0) fix nor this patch there
> yet. But I feel confident that the issue I saw there (shown in the
> screenshots in my first main) was the same as on the Mac, so is
> probably solved.
>
> The issue I'm having on Windows 7/intel now (volumes not showing) is
> orthogonal to this alpha issue, and I made a separate post about that.
>
> Thanks a lot for the assistance Utkarsh!
>
> Elvis
>
>>
>> Thanks,
>> Utkarsh