[vtkusers] GPU antialising not working on OpenGL2

[Ken Martin]

Try SetMultiSamples(8)  avoid SetAAFrames()  see if that gives you hat you
want.



On Thu, Apr 27, 2017 at 7:37 PM, Patricio Palma C. <patriciop at gmail.com>
wrote:

> Hi Experts
>
> I have an application runs on Linux using VTK 5.10 with the old opengl
> back-end, when running this application in a workstation with GPU it
> produces structures that are rendered with anti-aliasing, the code for this
> application do not consider calls like SetMultiSamples() or SetAAFrame() to
> get this effect, then I assume the GPU is providing this for free :).
>
> On the other hand, the same application ported to VTK 7.1 and using the
> new back-end OpenGL2, tested on the same workstation, do not produces the
> same anti-aliased images. I have tried using SetAAFrames() but the results
> are not the same, and the performance got a bit slower.
>
> Do you have any idea about what can be causing this? or How can I get the
> GPU anti-aliasing enabled when using VTK 7.1 with OpenGL2?
>
>
> --
> Patricio Palma Contreras
>
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-- 
Ken Martin PhD
Distinguished Engineer
Kitware Inc.
28 Corporate Drive
Clifton Park NY 12065

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