<div dir="ltr">We just rebuilt paraview from the latest master with VTK_RENDERING_BACKEND set it to OpenGL2.<div><br></div><div>Unfortunately this did not fix the problem with volume rending in mpi mode.</div><div><br></div><div>Best,</div><div>Ryan </div></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Oct 21, 2015 at 7:09 PM, Aashish Chaudhary <span dir="ltr"><<a href="mailto:aashish.chaudhary@kitware.com" target="_blank">aashish.chaudhary@kitware.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">If you checkout ParaView master and then go into the advance setting, look for VTK_RENDERING_BACKEND and set it to OpenGL2 (should be a dropdown if using the CMake GUI). Make sure you do it on a fresh build directly </div><div class="HOEnZb"><div class="h5"><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Oct 21, 2015 at 6:36 PM, Ryan Abernathey <span dir="ltr"><<a href="mailto:ryan.abernathey@gmail.com" target="_blank">ryan.abernathey@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div class="gmail_extra"><div class="gmail_quote"><span><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div>Looks like you are using the OpenGL backend. Is there a possibility of you switching to OpenGL2 backend?</div></div></blockquote><div><br></div></span><div>I would be happy to try this. Could you link me to the relevant documentation describing how to switch backend? </div><div><div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div></div><div>- Aashish</div></div><div class="gmail_extra"><br><div class="gmail_quote"><div><div>On Wed, Oct 21, 2015 at 3:37 PM, Ryan Abernathey <span dir="ltr"><<a href="mailto:ryan.abernathey@gmail.com" target="_blank">ryan.abernathey@gmail.com</a>></span> wrote:<br></div></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div><div dir="ltr"><div><span style="font-size:12.8px">Hello,</span><div style="font-size:12.8px"><br></div><div style="font-size:12.8px">I am trying to do volume rendering of this data:</div><div style="font-size:12.8px"><a href="ftp://ftp.ldeo.columbia.edu/pub/rpa/paraview_netcdf/rce_rrtm303x512dx3f20_512x512x64_3km_12s_128_0000001500.nc" target="_blank">ftp://ftp.ldeo.columbia.edu/pub/rpa/paraview_netcdf/rce_rrtm303x512dx3f20_512x512x64_3km_12s_128_0000001500.nc</a><br></div><div style="font-size:12.8px"><br></div><div style="font-size:12.8px">It works fine when Paraview is in regular (serial) mode. But the rendering is very slow. I have 32 cores in my workstation, so I tried using Paraview in parallel with 16 cores. This goes MUCH faster. But unfortunately, artifacts are visible related to the tiling of the data</div><div style="font-size:12.8px"><br></div><div style="font-size:12.8px">This image is a screenshot from the serial case:</div></div><div style="font-size:12.8px"><img src="cid:ii_1508be7226583653" alt="Inline image 6" width="544" height="317"><br></div><div style="font-size:12.8px"><br></div><div><div style="font-size:12.8px">And this is from the parallel case. Note the grid lines visible in the bottom slice.</div><div style="font-size:12.8px"><img src="cid:ii_1508be741892047e" alt="Inline image 7" width="544" height="317"><br></div><div style="font-size:12.8px"><br></div><div style="font-size:12.8px">The state file to reproduce this case is available here:</div><div><span style="font-size:12.8px"><a href="ftp://ftp.ldeo.columbia.edu/pub/rpa/paraview_netcdf/test_volume_parallel.pvsm" target="_blank">ftp://ftp.ldeo.columbia.edu/pub/rpa/paraview_netcdf/test_volume_parallel.pvsm</a></span><br></div><div><span style="font-size:12.8px"><br></span></div><div><span style="font-size:12.8px">Does anyone know how to fix these rendering issues in parallel mode?</span></div><div><span style="font-size:12.8px"><br></span></div><div><span style="font-size:12.8px">Sincere thanks,</span></div><div><span style="font-size:12.8px">Ryan Abernathey</span></div></div><div><div><span style="font-size:12.8px"><br></span></div></div></div>
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<br></blockquote></div><span><font color="#888888"><br><br clear="all"><div><br></div>-- <br><div><div dir="ltr"><font face="trebuchet ms, sans-serif"><i>| Aashish Chaudhary <br>| Technical Leader <br>| Kitware Inc. <br></i></font><div><i><font face="trebuchet ms, sans-serif">| </font><a href="http://www.kitware.com/company/team/chaudhary.html" target="_blank">http://www.kitware.com/company/team/chaudhary.html</a></i></div></div></div>
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</blockquote></div><br><br clear="all"><div><br></div>-- <br><div><div dir="ltr"><font face="trebuchet ms, sans-serif"><i>| Aashish Chaudhary <br>| Technical Leader <br>| Kitware Inc. <br></i></font><div><i><font face="trebuchet ms, sans-serif">| </font><a href="http://www.kitware.com/company/team/chaudhary.html" target="_blank">http://www.kitware.com/company/team/chaudhary.html</a></i></div></div></div>
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