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    <div class="moz-cite-prefix">Aashish, you're right --- it is fixed
      in version 5.1.0. Thanks.<br>
      <br>
      Weiguang<br>
      <br>
      On 08/07/2016 10:42 AM, Aashish Chaudhary wrote:<br>
    </div>
    <blockquote
cite="mid:CAEw35Z-YJ2r4GKXm3NQHaNdDSTUi5+6j6cazLUE6vQwXm=Hn0A@mail.gmail.com"
      type="cite">
      <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 moz-do-not-send="true"
              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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        <div><br>
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        -- <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
                  moz-do-not-send="true"
                  href="http://www.kitware.com/company/team/chaudhary.html"
                  target="_blank">http://www.kitware.com/company/team/chaudhary.html</a></i></div>
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