[vtkusers] Depth Peeling w/ Nvidia Quadro 2000

[Berk Geveci]

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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