<div dir="ltr">Did you build with <span style="color:rgb(51,51,51);font-family:Arial,sans-serif;font-size:12px;line-height:16.799999237060547px;text-align:justify;background-color:rgb(250,250,250)">VTK_RENDERING_BACKEND set to OpenGL2?</span><div>
<span style="color:rgb(51,51,51);font-family:Arial,sans-serif;font-size:12px;line-height:16.799999237060547px;text-align:justify;background-color:rgb(250,250,250)"><br></span></div><div><span style="color:rgb(51,51,51);font-family:Arial,sans-serif;font-size:12px;line-height:16.799999237060547px;text-align:justify;background-color:rgb(250,250,250)">Best,</span></div>
<div><span style="color:rgb(51,51,51);font-family:Arial,sans-serif;font-size:12px;line-height:16.799999237060547px;text-align:justify;background-color:rgb(250,250,250)">-berk</span></div></div><div class="gmail_extra"><br>
<br><div class="gmail_quote">On Tue, Sep 2, 2014 at 8:23 PM, Windes, Grant <span dir="ltr"><<a href="mailto:Grant.Windes@smith-nephew.com" target="_blank">Grant.Windes@smith-nephew.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Unfortunately the depth peeling is behaving the same way in vtk 6.2 as 5.10.1<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Any idea what may be causing it to work fine on a Intel integrated GPU compared to a traditional graphics card (Nvidia Quadro 2000)?<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Thanks,<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Grant<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Berk Geveci [mailto:<a href="mailto:berk.geveci@kitware.com" target="_blank">berk.geveci@kitware.com</a>]
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<b>Sent:</b> Tuesday, August 26, 2014 5:32 PM<br>
<b>To:</b> Windes, Grant<br>
<b>Cc:</b> <a href="mailto:vtkusers@vtk.org" target="_blank">vtkusers@vtk.org</a><br>
<b>Subject:</b> Re: [vtkusers] Depth Peeling w/ Nvidia Quadro 2000<u></u><u></u></span></p><div><div class="h5">
<p class="MsoNormal"><u></u> <u></u></p>
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<p class="MsoNormal">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<u></u><u></u></p>
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<p class="MsoNormal"><u></u> <u></u></p>
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<p class="MsoNormal"><a href="http://www.kitware.com/source/home/post/144" target="_blank">http://www.kitware.com/source/home/post/144</a><u></u><u></u></p>
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<p class="MsoNormal"><u></u> <u></u></p>
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<p class="MsoNormal">-berk<u></u><u></u></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><u></u> <u></u></p>
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<p class="MsoNormal">On Tue, Aug 26, 2014 at 5:59 PM, Windes, Grant <<a href="mailto:Grant.Windes@smith-nephew.com" target="_blank">Grant.Windes@smith-nephew.com</a>> wrote:<u></u><u></u></p>
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<p class="MsoNormal">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.
<u></u><u></u></p>
<p class="MsoNormal"> <u></u><u></u></p>
<p class="MsoNormal">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.<u></u><u></u></p>
<p class="MsoNormal"> <u></u><u></u></p>
<p class="MsoNormal">Note: Using pyVTK (vtk 5.10.1) on Windows 7 64bit with latest gpu Quadro drivers (9.18.13.4062)<u></u><u></u></p>
<p class="MsoNormal"> <u></u><u></u></p>
<p class="MsoNormal">In my small test application I can get DepthPeeling to render properly on the Quadro 2000 by setting
<u></u><u></u></p>
<p class="MsoNormal"> <u></u><u></u></p>
<p class="MsoNormal">renderWindow.SetAlphaBitPlanes(1)<u></u><u></u></p>
<p class="MsoNormal">renderWindow.SetMultiSamples(0)<u></u><u></u></p>
<p class="MsoNormal">renderer.SetUseDepthPeeling(1)<u></u><u></u></p>
<p class="MsoNormal"> <u></u><u></u></p>
<p class="MsoNormal">However, If I remove SetAlphaBitPlanes() and SetMultiSamples() depth peeling doesn’t work properly and is not enabled.<u></u><u></u></p>
<p class="MsoNormal"> <u></u><u></u></p>
<p class="MsoNormal">Any indication as to why depth peeling works fine on the Core i7 integrated graphics compared to a true GPU?<u></u><u></u></p>
<p class="MsoNormal"> <u></u><u></u></p>
<p class="MsoNormal">Thanks,<u></u><u></u></p>
<p class="MsoNormal">Grant<u></u><u></u></p>
<p class="MsoNormal"> <u></u><u></u></p>
<p class="MsoNormal"> <u></u><u></u></p>
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