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<div style="direction: ltr;font-family: Tahoma;color: #000000;font-size: 10pt;">Hi,
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<div>With respect to below problem, I was trying few things. I got volume data disappearance problem, when I used vtkCompositeDataWriter-vtkCompositeDataReader combination.</div>
<div>When I used vtkXMLMultiBlockDataWriter - vtkXMLMultiBlockDataReader combination, volume data appears correctly. </div>
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<div>I am curious to know what makes <span style="font-size: 13.3333330154419px;">vtkXMLMultiBlockDataWriter/Reader combo work</span> in parallel rendering. The vtkMultiBlockDataSet remains absolutely same. Both the combinations give similar results in serial
run. I am using Paraview 4.1 (Linux environment). </div>
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<div>Can anybody please advice here? Highly appreciate your comments!</div>
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<div>Thanks,</div>
<div>Prashant<br>
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<div id="divRpF109971" style="direction: ltr;"><font face="Tahoma" size="2" color="#000000"><b>From:</b> Prashant V<br>
<b>Sent:</b> Thursday, August 20, 2015 8:40 PM<br>
<b>To:</b> paraview-developers@paraview.org<br>
<b>Subject:</b> Parallel Paraview Rendering: Disappearance of volume data<br>
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<div style="direction:ltr; font-family:Tahoma; color:#000000; font-size:10pt"><span style="font-size:13.3333330154419px; background-color:rgb(255,255,255)"><font face="Arial" size="2"><span style="line-height:18px; white-space:nowrap">Hello,</span></font></span><span style="font-size:13.3333330154419px"></span>
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<div style="font-size:13.3333330154419px"><span style="line-height:18px; white-space:nowrap; font-family:Arial; font-size:small; background-color:rgb(255,255,255)">I am facing problem when running paraview in parallel mode.</span></div>
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<div><span style="background-color:rgb(255,255,255); line-height:18px; white-space:nowrap"><font face="Arial" size="2">
<div>My Paraview plugin reads a vtkMutliBlockDataset from a .vtm file and renders it in Paraview. </div>
<div>This vtkMutliBlockDataset comprises a volume (vtkUnstructuredGrid) and surfaces (vtkPolyData). </div>
<div>When Paraview is started serially, rendering works fine. However I am facing issues when Paraview is launched in parallel mode. </div>
<div>As it happens, in parallel run, all ranks read same vtkMutliBlockDataset and render in Paraview. </div>
<div>Further I apply D3 filter in pipeline. After applying D3 filter, volume data disappears leaving only surfaces (with no error message). </div>
<div>I tried applying D3 internally in the plugin (through code), but got same results.</div>
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<div>Can anyone advice me here, what could be the reason of disappearance of volume data in this scenario?</div>
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<div style="font-size:13.3333330154419px"><font face="Arial" size="2"><span style="line-height:18px; white-space:nowrap; background-color:rgb(255,255,255)">Thanks,</span></font></div>
<div style="font-size:13.3333330154419px"><font face="Arial" size="2"><span style="line-height:18px; white-space:nowrap; background-color:rgb(255,255,255)">Prashant</span></font></div>
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