[vtkusers] Depth Peeling w/ Nvidia Quadro 2000

[Berk Geveci]

Did you build with VTK_RENDERING_BACKEND set to OpenGL2?

Best,
-berk


On Tue, Sep 2, 2014 at 8:23 PM, Windes, Grant <Grant.Windes at smith-nephew.com
> wrote:

>  Unfortunately the depth peeling is behaving the same way in vtk 6.2 as
> 5.10.1
>
>
>
> Any idea what may be causing  it to work fine on a Intel integrated GPU
> compared to a traditional graphics card (Nvidia Quadro 2000)?
>
>
>
> Thanks,
>
> Grant
>
>
>
> *From:* Berk Geveci [mailto:berk.geveci at kitware.com]
> *Sent:* Tuesday, August 26, 2014 5:32 PM
> *To:* Windes, Grant
> *Cc:* vtkusers at vtk.org
> *Subject:* Re: [vtkusers] Depth Peeling w/ Nvidia Quadro 2000
>
>
>
> Rather than trying to figure it out, I'd recommend trying out the new
> render code in VTK. It has a brand spanking new depth peeling
> implementation. See
>
>
>
> http://www.kitware.com/source/home/post/144
>
>
>
> -berk
>
>
>
> On Tue, Aug 26, 2014 at 5:59 PM, Windes, Grant <
> Grant.Windes at smith-nephew.com> wrote:
>
> Looking to implement a proper depth sort for semi-transparent objects. My
> research has shown that the vtkDepthSortPolyData is not sufficient as it is
> CPU bound.
>
>
>
> I’ve enabled depth peeling and it’s worked great using Core i7 4770K
> (4600HD Integrated Graphics). However, it was slower than we liked and thus
> I tested an Nvidia Quadro 3000M and Quadro 2000. Both don’t properly enable
> depth peeling as confirmed with a GetRenderLastUsedDepthPeeling() call.
>
>
>
> Note: Using pyVTK (vtk 5.10.1) on Windows 7 64bit with latest gpu Quadro
> drivers (9.18.13.4062)
>
>
>
> In my small test application I can get DepthPeeling to render properly on
> the Quadro 2000 by setting
>
>
>
> renderWindow.SetAlphaBitPlanes(1)
>
> renderWindow.SetMultiSamples(0)
>
> renderer.SetUseDepthPeeling(1)
>
>
>
> However, If I remove SetAlphaBitPlanes() and SetMultiSamples() depth
> peeling doesn’t work properly and is not enabled.
>
>
>
> Any indication as to why depth peeling works fine on the Core i7
> integrated graphics compared to a true GPU?
>
>
>
> Thanks,
>
> Grant
>
>
>
>
>
>
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