<div dir="ltr">Hi Weiguang, <div><br></div><div>Have you tried recent release of paraview / vtk? This should have been fixed in the recent commits. </div><div><br></div><div>Thanks</div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Fri, Jul 8, 2016 at 10:04 AM, Weiguang guan <span dir="ltr"><<a href="mailto:guanw@rhpcs.mcmaster.ca" target="_blank">guanw@rhpcs.mcmaster.ca</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
  
    
  
  <div text="#000000" bgcolor="#FFFFFF">
    <div>Is there a solution to fix the problem?
      Thanks.<span class="HOEnZb"><font color="#888888"><br>
      <br>
      Weiguang</font></span><div><div class="h5"><br>
      <br>
      On 04/07/2016 3:51 PM, Weiguang guan wrote:<br>
    </div></div></div><div><div class="h5">
    <blockquote type="cite">
      
      <div>I run into the same problem on linux.<br>
        <br>
        <span style="color:rgb(0,0,0);font-family:Verdana,"Bitstream Vera Sans",Arial,Helvetica,sans-serif;font-size:12px;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-align:left;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;display:inline!important;float:none;background-color:rgb(225,233,247)">Warning: In
          /home/kitware/dashboards/buildbot/paraview-debian6dash-linux-shared-release_opengl2_qt4_superbuild/source-paraview/VTK/Rendering/VolumeOpenGL2/vtkOpenGLProjectedTetrahedraMapper.cxx,

          line 251<span> </span></span><br style="clear:left;color:rgb(0,0,0);font-family:Verdana,"Bitstream Vera Sans",Arial,Helvetica,sans-serif;font-size:12px;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-align:left;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(225,233,247)">
        <span style="color:rgb(0,0,0);font-family:Verdana,"Bitstream Vera Sans",Arial,Helvetica,sans-serif;font-size:12px;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-align:left;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;display:inline!important;float:none;background-color:rgb(225,233,247)">vtkOpenGLProjectedTetrahedraMapper (0x630b310):
          Missing FBO support. The algorithm may produce visual
          artifacts.</span><br>
        <br>
        I'm running Paraview 5.0.0.<br>
        <br>
        Weiguang<br>
        <br>
        On 03/03/2016 9:42 AM, Aashish Chaudhary wrote:<br>
      </div>
      <blockquote type="cite">
        <blockquote type="cite">
          <pre>I have the same problem. Though in my case it is a small unstructuredgrid
vtu file. The OS is Ubuntu 14.04. ParaView-5.0.0-Qt4-OpenGL2-MPI-Linux-64bit
prebuilt binaries. The Graphics card is Nvidia Quadro K620 with OpenGL
version 3.02 Nvidia 352.63. The Nvidia settings show the following etensions
amongst others GL_ARB_frame_buffer_object.
</pre>
        </blockquote>
        <blockquote type="cite">
          <pre>Also, it does show artifacts. In particular for a vector allocated to a
standard hexahedron cell, the colors are slightly different within the cell.
You can see triangular segments [possibly tetrahedron?]
</pre>
        </blockquote>
        <pre>It seems to me that you are running into a different issue as atleast
you are seeing
something but it does look correct to you. Is that it?

Thanks


</pre>
        <blockquote type="cite">
          <pre>Regard
Paul.



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        <pre>
</pre>
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      <br>
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<br></blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature" data-smartmail="gmail_signature"><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>
</div>