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    Got it! Impressive, your knowledge on these matters.<br>
    <br>
    Regards,<br>
    Bertwim<br>
    <br>
    <br>
    <br>
    <div class="moz-cite-prefix">On 10/16/2014 07:53 PM, Burlen Loring
      wrote:<br>
    </div>
    <blockquote cite="mid:54400621.2040900@gmail.com" type="cite">
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      Hi Bertwim,<br>
      <br>
      The problem you're experiencing is not an issue of missing
      extensions, but rather a bug in ATI's driver. Projected tetrahedra
      is disabled when an ATI device is detected to avoid that
      bug(ParaView will hang). However it's not a big deal. because you
      can use the "Bunyk raycast" algrothim instead. After your data is
      on screen scroll to the bottom of the properties panel and look
      for the field "Select mapper", set that to "Bunyk ray cast", then
      change the representation to "volume".<br>
      <br>
      Burlen<br>
      <br>
      <br>
      <div class="moz-cite-prefix">On 10/15/2014 06:58 PM, B.W.H. van
        Beest wrote:<br>
      </div>
      <blockquote cite="mid:543F265A.5000505@xs4all.nl" type="cite">
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        I am still busy with finding out which etensions are needed, and
        how I can enable them.<br>
        THis opebnGL-world is a bit alien to me, so it will take some
        time.<br>
        <br>
        Regards,<br>
        Bertwim<br>
        <br>
        <div class="moz-cite-prefix">On 10/14/2014 11:07 PM, Aashish
          Chaudhary wrote:<br>
        </div>
        <blockquote
cite="mid:CAEw35Z_4sZPX6rsphRBQbfULCqrSAXQpMY3Rhz_RWy3vUK1+Rw@mail.gmail.com"
          type="cite">
          <div dir="ltr">Looks like certain extensions are still not
            quite working on yours system even with the proprietary
            driver. I will see if I can run your code on my laptop but
            that would be for tomorrow. 
            <div><br>
            </div>
            <div>** Assuming that this is not data dependent issue
              (which it should not). </div>
            <div><br>
            </div>
            <div>I think its probably this line causing the issue: </div>
            <div><br>
            </div>
            <div>
              <table class=""
                style="border-collapse:collapse;border-spacing:0px;color:rgb(51,51,51);font-family:Helvetica,arial,freesans,clean,sans-serif,'Segoe


                UI Emoji','Segoe UI
Symbol';font-size:13px;line-height:18.2000007629395px;background-image:initial;background-repeat:initial">
                <tbody>
                  <tr>
                  </tr>
                  <tr>
                    <td id="LC157" class="" style="padding:0px
                      10px;font-family:Consolas,'Liberation
Mono',Menlo,Courier,monospace;font-size:12px;vertical-align:top;white-space:pre;overflow:visible"><span
                        class=""
                        style="font-weight:bold;color:rgb(68,85,136)">bool</span>
                      <span class="">driverSupport</span></td>
                  </tr>
                  <tr>
                    <td id="L158" class="" style="padding:0px
                      10px;width:50px;min-width:50px;font-family:Consolas,'Liberation
                      Mono',Menlo,Courier,monospace;font-size:12px;line-height:18px;color:rgba(0,0,0,0.298039);vertical-align:top;text-align:right;border-style:solid;border-color:rgb(238,238,238);border-width:0px


                      1px 0px 0px"><br>
                    </td>
                    <td id="LC158" class="" style="padding:0px
                      10px;font-family:Consolas,'Liberation
Mono',Menlo,Courier,monospace;font-size:12px;vertical-align:top;white-space:pre;overflow:visible"><span
                        class=""
                        style="color:rgb(153,153,153);font-weight:bold">
                        #if defined(__APPLE__)</span></td>
                  </tr>
                  <tr>
                    <td id="L159" class="" style="padding:0px
                      10px;width:50px;min-width:50px;font-family:Consolas,'Liberation
                      Mono',Menlo,Courier,monospace;font-size:12px;line-height:18px;color:rgba(0,0,0,0.298039);vertical-align:top;text-align:right;border-style:solid;border-color:rgb(238,238,238);border-width:0px


                      1px 0px 0px"><br>
                    </td>
                    <td id="LC159" class="" style="padding:0px
                      10px;font-family:Consolas,'Liberation
Mono',Menlo,Courier,monospace;font-size:12px;vertical-align:top;white-space:pre;overflow:visible">
                      <span class="" style="font-weight:bold">=</span> <span
                        class="" style="color:rgb(0,134,179)">true</span><span
                        class="">;</span></td>
                  </tr>
                  <tr>
                    <td id="L160" class="" style="padding:0px
                      10px;width:50px;min-width:50px;font-family:Consolas,'Liberation
                      Mono',Menlo,Courier,monospace;font-size:12px;line-height:18px;color:rgba(0,0,0,0.298039);vertical-align:top;text-align:right;border-style:solid;border-color:rgb(238,238,238);border-width:0px


                      1px 0px 0px"><br>
                    </td>
                    <td id="LC160" class="" style="padding:0px
                      10px;font-family:Consolas,'Liberation
Mono',Menlo,Courier,monospace;font-size:12px;vertical-align:top;white-space:pre;overflow:visible"><span
                        class=""
                        style="color:rgb(153,153,153);font-weight:bold">
                        #else</span></td>
                  </tr>
                  <tr>
                    <td id="L161" class="" style="padding:0px
                      10px;width:50px;min-width:50px;font-family:Consolas,'Liberation
                      Mono',Menlo,Courier,monospace;font-size:12px;line-height:18px;color:rgba(0,0,0,0.298039);vertical-align:top;text-align:right;border-style:solid;border-color:rgb(238,238,238);border-width:0px


                      1px 0px 0px"><br>
                    </td>
                    <td id="LC161" class="" style="padding:0px
                      10px;font-family:Consolas,'Liberation
Mono',Menlo,Courier,monospace;font-size:12px;vertical-align:top;white-space:pre;overflow:visible">
                      <span class="" style="font-weight:bold">=</span> <span
                        class="" style="font-weight:bold">!</span><span
                        class="">(</span><span class="">extensions</span><span
                        class="" style="font-weight:bold">-></span><span
                        class="">DriverIsATI</span><span class="">()</span></td>
                  </tr>
                  <tr>
                    <td id="L162" class="" style="padding:0px
                      10px;width:50px;min-width:50px;font-family:Consolas,'Liberation
                      Mono',Menlo,Courier,monospace;font-size:12px;line-height:18px;color:rgba(0,0,0,0.298039);vertical-align:top;text-align:right;border-style:solid;border-color:rgb(238,238,238);border-width:0px


                      1px 0px 0px"><br>
                    </td>
                    <td id="LC162" class="" style="padding:0px
                      10px;font-family:Consolas,'Liberation
Mono',Menlo,Courier,monospace;font-size:12px;vertical-align:top;white-space:pre;overflow:visible">
                      <span class="" style="font-weight:bold">&&</span>
                      <span class="">(</span><span class="">extensions</span><span
                        class="" style="font-weight:bold">-></span><span
                        class="">GetDriverGLVersionMajor</span><span
                        class="">()</span> <span class=""
                        style="font-weight:bold">>=</span> <span
                        class="" style="color:rgb(148,82,119)">3</span><span
                        class="">))</span></td>
                  </tr>
                  <tr>
                    <td id="L163" class="" style="padding:0px
                      10px;width:50px;min-width:50px;font-family:Consolas,'Liberation
                      Mono',Menlo,Courier,monospace;font-size:12px;line-height:18px;color:rgba(0,0,0,0.298039);vertical-align:top;text-align:right;border-style:solid;border-color:rgb(238,238,238);border-width:0px


                      1px 0px 0px"><br>
                    </td>
                    <td id="LC163" class="" style="padding:0px
                      10px;font-family:Consolas,'Liberation
Mono',Menlo,Courier,monospace;font-size:12px;vertical-align:top;white-space:pre;overflow:visible">
                      <span class="" style="font-weight:bold">||</span>
                      <span class="">extensions</span><span class=""
                        style="font-weight:bold">-></span><span
                        class="">GetIgnoreDriverBugs</span><span
                        class="">(</span><span class=""
                        style="color:rgb(223,80,0)">"ATI texturing bug"</span><span
                        class="">);</span></td>
                  </tr>
                  <tr>
                    <td id="L164" class="" style="padding:0px
                      10px;width:50px;min-width:50px;font-family:Consolas,'Liberation
                      Mono',Menlo,Courier,monospace;font-size:12px;line-height:18px;color:rgba(0,0,0,0.298039);vertical-align:top;text-align:right;border-style:solid;border-color:rgb(238,238,238);border-width:0px


                      1px 0px 0px"><br>
                    </td>
                    <td id="LC164" class="" style="padding:0px
                      10px;font-family:Consolas,'Liberation
Mono',Menlo,Courier,monospace;font-size:12px;vertical-align:top;white-space:pre;overflow:visible"><span
                        class=""
                        style="color:rgb(153,153,153);font-weight:bold">
                        #endif</span></td>
                  </tr>
                  <tr>
                    <td id="L165" class="" style="padding:0px
                      10px;width:50px;min-width:50px;font-family:Consolas,'Liberation
                      Mono',Menlo,Courier,monospace;font-size:12px;line-height:18px;color:rgba(0,0,0,0.298039);vertical-align:top;text-align:right;border-style:solid;border-color:rgb(238,238,238);border-width:0px


                      1px 0px 0px"><br>
                    </td>
                  </tr>
                </tbody>
              </table>
              <br>
              <br>
              On line number 181: can you change this code to : </div>
            <div><br>
            </div>
            <div><span class=""
style="font-weight:bold;color:rgb(51,51,51);font-family:Consolas,'LiberationMono',Menlo,Courier,monospace;font-size:12px;line-height:16.7999992370605px;white-space:pre">this</span><span
                class=""
style="font-weight:bold;color:rgb(51,51,51);font-family:Consolas,'LiberationMono',Menlo,Courier,monospace;font-size:12px;line-height:16.7999992370605px;white-space:pre">-></span><span
                class=""
                style="color:rgb(51,51,51);font-family:Consolas,'Liberation
Mono',Menlo,Courier,monospace;font-size:12px;line-height:16.7999992370605px;white-space:pre;background-color:rgb(255,255,255)">HasHardwareSupport</span><span
style="color:rgb(51,51,51);font-family:Consolas,'Liberation
Mono',Menlo,Courier,monospace;font-size:12px;line-height:16.7999992370605px;white-space:pre">
              </span><span class=""
style="font-weight:bold;color:rgb(51,51,51);font-family:Consolas,'LiberationMono',Menlo,Courier,monospace;font-size:12px;line-height:16.7999992370605px;white-space:pre">=</span><span
style="color:rgb(51,51,51);font-family:Consolas,'Liberation
Mono',Menlo,Courier,monospace;font-size:12px;line-height:16.7999992370605px;white-space:pre">
              </span><span class=""
                style="color:rgb(51,51,51);font-family:Consolas,'Liberation
Mono',Menlo,Courier,monospace;font-size:12px;line-height:16.7999992370605px;white-space:pre;background-color:rgb(255,255,255)">renwin</span><span
style="color:rgb(51,51,51);font-family:Consolas,'Liberation
Mono',Menlo,Courier,monospace;font-size:12px;line-height:16.7999992370605px;white-space:pre">
              </span><span class=""
style="font-weight:bold;color:rgb(51,51,51);font-family:Consolas,'LiberationMono',Menlo,Courier,monospace;font-size:12px;line-height:16.7999992370605px;white-space:pre">!=</span><span
style="color:rgb(51,51,51);font-family:Consolas,'Liberation
Mono',Menlo,Courier,monospace;font-size:12px;line-height:16.7999992370605px;white-space:pre">
              </span><span class=""
                style="color:rgb(0,134,179);font-family:Consolas,'Liberation
Mono',Menlo,Courier,monospace;font-size:12px;line-height:16.7999992370605px;white-space:pre">NULL</span><span
style="color:rgb(51,51,51);font-family:Consolas,'Liberation
Mono',Menlo,Courier,monospace;font-size:12px;line-height:16.7999992370605px;white-space:pre">
              </span><span class=""
style="font-weight:bold;color:rgb(51,51,51);font-family:Consolas,'LiberationMono',Menlo,Courier,monospace;font-size:12px;line-height:16.7999992370605px;white-space:pre">&&</span><span
style="color:rgb(51,51,51);font-family:Consolas,'Liberation
Mono',Menlo,Courier,monospace;font-size:12px;line-height:16.7999992370605px;white-space:pre">
              </span><span class=""
style="font-weight:bold;color:rgb(51,51,51);font-family:Consolas,'LiberationMono',Menlo,Courier,monospace;font-size:12px;line-height:16.7999992370605px;white-space:pre">this</span><span
                class=""
style="font-weight:bold;color:rgb(51,51,51);font-family:Consolas,'LiberationMono',Menlo,Courier,monospace;font-size:12px;line-height:16.7999992370605px;white-space:pre">-></span><span
                class=""
                style="color:rgb(51,51,51);font-family:Consolas,'Liberation
Mono',Menlo,Courier,monospace;font-size:12px;line-height:16.7999992370605px;white-space:pre;background-color:rgb(255,255,255)">IsSupported</span><span
                class=""
                style="color:rgb(51,51,51);font-family:Consolas,'Liberation
Mono',Menlo,Courier,monospace;font-size:12px;line-height:16.7999992370605px;white-space:pre">(</span><span
                class=""
                style="color:rgb(51,51,51);font-family:Consolas,'Liberation
Mono',Menlo,Courier,monospace;font-size:12px;line-height:16.7999992370605px;white-space:pre;background-color:rgb(255,255,255)">renwin</span><span
                class=""
                style="color:rgb(51,51,51);font-family:Consolas,'Liberation
Mono',Menlo,Courier,monospace;font-size:12px;line-height:16.7999992370605px;white-space:pre">);</span></div>
            <div><span
                style="font-size:12px;line-height:16.7999992370605px;white-space:pre;color:rgb(51,51,51);font-family:Consolas,'Liberation


                Mono',Menlo,Courier,monospace">to </span><br>
            </div>
            <div><span class=""
style="font-weight:bold;color:rgb(51,51,51);font-family:Consolas,'LiberationMono',Menlo,Courier,monospace;font-size:12px;line-height:16.7999992370605px;white-space:pre">this</span><span
                class=""
style="font-weight:bold;color:rgb(51,51,51);font-family:Consolas,'LiberationMono',Menlo,Courier,monospace;font-size:12px;line-height:16.7999992370605px;white-space:pre">-></span><span
                class=""
                style="color:rgb(51,51,51);font-family:Consolas,'Liberation
Mono',Menlo,Courier,monospace;font-size:12px;line-height:16.7999992370605px;white-space:pre;background-color:rgb(255,255,255)">HasHardwareSupport</span><span
style="color:rgb(51,51,51);font-family:Consolas,'Liberation
Mono',Menlo,Courier,monospace;font-size:12px;line-height:16.7999992370605px;white-space:pre">
              </span><span class=""
style="font-weight:bold;color:rgb(51,51,51);font-family:Consolas,'LiberationMono',Menlo,Courier,monospace;font-size:12px;line-height:16.7999992370605px;white-space:pre">=</span><span
style="color:rgb(51,51,51);font-family:Consolas,'Liberation
Mono',Menlo,Courier,monospace;font-size:12px;line-height:16.7999992370605px;white-space:pre">
                1; </span></div>
            <div><font color="#333333" face="Consolas, Liberation Mono,
                Menlo, Courier, monospace"><span
                  style="font-size:12px;line-height:16.7999992370605px;white-space:pre"><br>
                </span></font>
              <div>- Aashish<br>
              </div>
              <div>
                <div><br>
                </div>
                <div><br>
                </div>
              </div>
            </div>
          </div>
          <div class="gmail_extra"><br>
            <div class="gmail_quote">On Tue, Oct 14, 2014 at 4:53 PM,
              B.W.H. van Beest <span dir="ltr"><<a
                  moz-do-not-send="true" href="mailto:bwvb@xs4all.nl"
                  target="_blank">bwvb@xs4all.nl</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"> Progress indeed.
                  But I don't understand what you are saying about the
                  transfer function.<br>
                  <br>
                  I' starting to wonder if I have two issues occurring
                  simultaneously.<br>
                  In a new thread I just posted I described my problem
                  in getting the colours in place.<br>
                  I need to write to a vtk file first and load it back. 
                  I just found that when I just did that<br>
                  and then switched fo volume rendering, an error was
                  there about the absence<br>
                  of an opengl extension:<br>
                  <br>
                  ERROR: In
                  /usr/local/git/ParaView/VTK/Rendering/VolumeOpenGL/vtkOpenGLProjectedTetrahedraMapper.cxx,



                  line 185<br>
                  vtkOpenGLProjectedTetrahedraMapper (0x58ae490): The
                  required extensions are not supported.<br>
                  <br>
                   This is complete unknown terrain for me.<br>
                  <br>
                  Regards,<br>
                  Bertwim
                  <div>
                    <div class="h5"><br>
                      <br>
                      <br>
                      <div>On 10/14/2014 09:58 PM, Burlen Loring wrote:<br>
                      </div>
                      <blockquote type="cite"> progress!  it sounds like
                        volume rendering is working on the wavelet
                        dataset.<br>
                        <br>
                        You do need the scalars for volume rendering, so
                        make sure you have those when you try. You need
                        to select the scalars in the drop down also, I
                        usually do this before changing to the volume
                        representation. You also may need to edit the
                        transfer function. For testing you could make
                        the opacity over the entire scalar range in
                        which case you should see a solid cube.<br>
                        <br>
                        If you've done all that and don't see anything
                        it's likely that the dataset is messed up.  Add
                        a dataset->Print(cerr) statement to the end
                        of your request data,  look in the information
                        panel and verify correct number of points and
                        scalar ranges. <br>
                        <br>
                        If all else fails post the dataset to the list.
                        After creating your cube go to the file menu and
                        "save data".<br>
                        <br>
                        <br>
                        <div>On 10/14/2014 10:40 AM, B.W.H. van Beest
                          wrote:<br>
                        </div>
                        <blockquote type="cite"> Hi Burlen, <br>
                          <br>
                          I have upgraded to the AMD drivers. Thanks for
                          the hint. It has improved the situation a bit.<br>
                          <br>
                          Furthermore, I created the wavelet source.
                          When selecting "volume" representation, I do
                          see a three 3 picture, in all 5 volume
                          rendering mode (smart, raycast and texture
                          mapping, ray cast only, texture mapping only,
                          GPU based). The picture a rather fuzzy, but
                          then I don't know what I'm supposed to see
                          here. The good news is that the openGL errors
                          I had before when displaying a wavelet, now
                          have gone.<br>
                          <br>
                          The situation with my own cube, though, has
                          unchanged. unfortunately.  <br>
                          The cube disappears in "volume" representation
                          node, also when I  re-inserted scalar values
                          for each of the 8 vertices.<br>
                          <br>
                          Regards,<br>
                          Bertwim<br>
                          <br>
                          <div>On 10/14/2014 06:06 PM, Burlen Loring
                            wrote:<br>
                          </div>
                          <blockquote type="cite"> Hi Bertwim,<br>
                            <br>
                            In recent releases of ParaView I have
                            experienced issues/flakeyness with volume
                            rendering. Something you should try: Create
                            the wavelet source, then in the properties
                            panel find "volume rendering mode" and set
                            it to "ray cast only".  This has worked for
                            me on a number of systems. may or may not
                            work, but worth a try.<br>
                            <br>
                            The output you pasted below shows that
                            although you've got a sweet ATI GPU you're
                            not taking advantage of it! You're using the
                            Intel integrated GPU with Mesa drivers. If I
                            were you I would install proprietary the <a
                              moz-do-not-send="true"
                              href="http://support.amd.com/en-us/download"
                              target="_blank">AMD drivers</a>. This
                            should give you nice performance boost and
                            may even solve the OpenGL errors you
                            reported, which these days are as often (or
                            more) a result of bugs in the Mesa drivers
                            than in VTK.<br>
                            <br>
                            Burlen<br>
                            <br>
                            <div>On 10/13/2014 11:44 AM, B.W.H. van
                              Beest wrote:<br>
                            </div>
                            <blockquote type="cite"> <br>
                              <br>
                              OS:   OpenSuSe 13.1<br>
                              <br>
                              # lspci | grep -i vga<br>
                              00:02.0 VGA compatible controller: Intel
                              Corporation 4th Gen Core Processor
                              Integrated Graphics Controller (rev 06)<br>
                              01:00.0 VGA compatible controller:
                              Advanced Micro Devices, Inc. [AMD/ATI]
                              Mars [Radeon HD 8670A/8670M/8750M]<br>
                              <br>
                              # glxinfo <br>
                              name of display: :0<br>
                              display: :0  screen: 0<br>
                              direct rendering: Yes<br>
                              server glx vendor string: SGI<br>
                              server glx version string: 1.4<br>
                              server glx extensions:<br>
                                  GLX_ARB_create_context,
                              GLX_ARB_create_context_profile, <br>
                                  GLX_ARB_multisample,
                              GLX_EXT_create_context_es2_profile, <br>
                                  GLX_EXT_import_context,
                              GLX_EXT_texture_from_pixmap,
                              GLX_EXT_visual_info, <br>
                                  GLX_EXT_visual_rating,
                              GLX_INTEL_swap_event,
                              GLX_MESA_copy_sub_buffer, <br>
                                  GLX_OML_swap_method,
                              GLX_SGIS_multisample, GLX_SGIX_fbconfig, <br>
                                  GLX_SGIX_pbuffer,
                              GLX_SGIX_visual_select_group,
                              GLX_SGI_swap_control<br>
                              client glx vendor string: Mesa Project and
                              SGI<br>
                              client glx version string: 1.4<br>
                              client glx extensions:<br>
                                  GLX_ARB_create_context,
                              GLX_ARB_create_context_profile, <br>
                                  GLX_ARB_create_context_robustness,
                              GLX_ARB_fbconfig_float, <br>
                                  GLX_ARB_framebuffer_sRGB,
                              GLX_ARB_get_proc_address,
                              GLX_ARB_multisample, <br>
                                  GLX_EXT_create_context_es2_profile,
                              GLX_EXT_fbconfig_packed_float, <br>
                                  GLX_EXT_framebuffer_sRGB,
                              GLX_EXT_import_context, <br>
                                  GLX_EXT_texture_from_pixmap,
                              GLX_EXT_visual_info,
                              GLX_EXT_visual_rating, <br>
                                  GLX_INTEL_swap_event,
                              GLX_MESA_copy_sub_buffer, <br>
                                  GLX_MESA_multithread_makecurrent,
                              GLX_MESA_swap_control, <br>
                                  GLX_OML_swap_method,
                              GLX_OML_sync_control,
                              GLX_SGIS_multisample, <br>
                                  GLX_SGIX_fbconfig, GLX_SGIX_pbuffer,
                              GLX_SGIX_visual_select_group, <br>
                                  GLX_SGI_make_current_read,
                              GLX_SGI_swap_control, GLX_SGI_video_sync<br>
                              GLX version: 1.4<br>
                              GLX extensions:<br>
                                  GLX_ARB_create_context,
                              GLX_ARB_create_context_profile, <br>
                                  GLX_ARB_get_proc_address,
                              GLX_ARB_multisample, <br>
                                  GLX_EXT_create_context_es2_profile,
                              GLX_EXT_import_context, <br>
                                  GLX_EXT_texture_from_pixmap,
                              GLX_EXT_visual_info,
                              GLX_EXT_visual_rating, <br>
                                  GLX_INTEL_swap_event,
                              GLX_MESA_copy_sub_buffer, <br>
                                  GLX_MESA_multithread_makecurrent,
                              GLX_MESA_swap_control, <br>
                                  GLX_OML_swap_method,
                              GLX_OML_sync_control,
                              GLX_SGIS_multisample, <br>
                                  GLX_SGIX_fbconfig, GLX_SGIX_pbuffer,
                              GLX_SGIX_visual_select_group, <br>
                                  GLX_SGI_make_current_read,
                              GLX_SGI_swap_control, GLX_SGI_video_sync<br>
                              OpenGL vendor string: Intel Open Source
                              Technology Center<br>
                              OpenGL renderer string: Mesa DRI Intel(R)
                              Haswell Mobile <br>
                              OpenGL core profile version string: 3.1
                              (Core Profile) Mesa 9.2.3<br>
                              OpenGL core profile shading language
                              version string: 1.40<br>
                              OpenGL core profile context flags: (none)<br>
                              OpenGL core profile extensions:<br>
                                  GL_3DFX_texture_compression_FXT1,
                              GL_AMD_draw_buffers_blend, <br>
                                  GL_ANGLE_texture_compression_dxt3,
                              GL_ANGLE_texture_compression_dxt5, <br>
                                  GL_APPLE_object_purgeable,
                              GL_ARB_ES2_compatibility, <br>
                                  GL_ARB_ES3_compatibility,
                              GL_ARB_base_instance, <br>
                                  GL_ARB_blend_func_extended,
                              GL_ARB_copy_buffer, GL_ARB_debug_output, <br>
                                  GL_ARB_depth_buffer_float,
                              GL_ARB_depth_clamp, GL_ARB_draw_buffers, <br>
                                  GL_ARB_draw_buffers_blend,
                              GL_ARB_draw_elements_base_vertex, <br>
                                  GL_ARB_draw_instanced,
                              GL_ARB_explicit_attrib_location, <br>
                                  GL_ARB_fragment_coord_conventions,
                              GL_ARB_fragment_shader, <br>
                                  GL_ARB_framebuffer_object,
                              GL_ARB_framebuffer_sRGB, <br>
                                  GL_ARB_get_program_binary,
                              GL_ARB_half_float_pixel, <br>
                                  GL_ARB_half_float_vertex,
                              GL_ARB_instanced_arrays, <br>
                                  GL_ARB_internalformat_query,
                              GL_ARB_invalidate_subdata, <br>
                                  GL_ARB_map_buffer_range,
                              GL_ARB_occlusion_query2, <br>
                                  GL_ARB_pixel_buffer_object,
                              GL_ARB_point_sprite,
                              GL_ARB_provoking_vertex, <br>
                                  GL_ARB_robustness,
                              GL_ARB_sampler_objects,
                              GL_ARB_seamless_cube_map, <br>
                                  GL_ARB_shader_bit_encoding,
                              GL_ARB_shader_objects, <br>
                                  GL_ARB_shader_texture_lod,
                              GL_ARB_shading_language_420pack, <br>
                                  GL_ARB_shading_language_packing,
                              GL_ARB_sync, <br>
                                  GL_ARB_texture_buffer_object,
                              GL_ARB_texture_buffer_object_rgb32, <br>
                                  GL_ARB_texture_compression_rgtc,
                              GL_ARB_texture_cube_map_array, <br>
                                  GL_ARB_texture_float,
                              GL_ARB_texture_multisample, <br>
                                  GL_ARB_texture_non_power_of_two,
                              GL_ARB_texture_query_lod, <br>
                                  GL_ARB_texture_rectangle,
                              GL_ARB_texture_rg,
                              GL_ARB_texture_rgb10_a2ui, <br>
                                  GL_ARB_texture_storage,
                              GL_ARB_texture_storage_multisample, <br>
                                  GL_ARB_texture_swizzle,
                              GL_ARB_timer_query,
                              GL_ARB_uniform_buffer_object, <br>
                                  GL_ARB_vertex_array_bgra,
                              GL_ARB_vertex_array_object, <br>
                                  GL_ARB_vertex_shader,
                              GL_ARB_vertex_type_2_10_10_10_rev, <br>
                                  GL_ATI_blend_equation_separate,
                              GL_ATI_texture_float, GL_EXT_abgr, <br>
                                  GL_EXT_blend_equation_separate,
                              GL_EXT_draw_buffers2, <br>
                                  GL_EXT_draw_instanced,
                              GL_EXT_framebuffer_blit, <br>
                                  GL_EXT_framebuffer_multisample,
                              GL_EXT_framebuffer_multisample_blit_scaled,
                              <br>
                                  GL_EXT_framebuffer_sRGB,
                              GL_EXT_packed_depth_stencil,
                              GL_EXT_packed_float, <br>
                                  GL_EXT_pixel_buffer_object,
                              GL_EXT_provoking_vertex,
                              GL_EXT_texture_array, <br>
                                  GL_EXT_texture_compression_dxt1,
                              GL_EXT_texture_compression_rgtc, <br>
                                  GL_EXT_texture_filter_anisotropic,
                              GL_EXT_texture_integer, <br>
                                  GL_EXT_texture_sRGB,
                              GL_EXT_texture_sRGB_decode, <br>
                                  GL_EXT_texture_shared_exponent,
                              GL_EXT_texture_snorm, <br>
                                  GL_EXT_texture_swizzle,
                              GL_EXT_timer_query,
                              GL_EXT_transform_feedback, <br>
                                  GL_EXT_vertex_array_bgra,
                              GL_IBM_multimode_draw_arrays, <br>
                                  GL_MESA_pack_invert,
                              GL_MESA_texture_signed_rgba,
                              GL_MESA_ycbcr_texture, <br>
                                  GL_NV_conditional_render,
                              GL_NV_depth_clamp,
                              GL_NV_packed_depth_stencil, <br>
                                  GL_OES_EGL_image, GL_OES_read_format,
                              GL_S3_s3tc<br>
                              <br>
                              OpenGL version string: 3.0 Mesa 9.2.3<br>
                              OpenGL shading language version string:
                              1.30<br>
                              OpenGL context flags: (none)<br>
                              OpenGL extensions:<br>
                                  GL_3DFX_texture_compression_FXT1,
                              GL_AMD_draw_buffers_blend, <br>
                                  GL_ANGLE_texture_compression_dxt3,
                              GL_ANGLE_texture_compression_dxt5, <br>
                                  GL_APPLE_object_purgeable,
                              GL_APPLE_packed_pixels, <br>
                                  GL_APPLE_vertex_array_object,
                              GL_ARB_ES2_compatibility, <br>
                                  GL_ARB_ES3_compatibility,
                              GL_ARB_blend_func_extended, <br>
                                  GL_ARB_color_buffer_float,
                              GL_ARB_copy_buffer, GL_ARB_debug_output, <br>
                                  GL_ARB_depth_buffer_float,
                              GL_ARB_depth_clamp, GL_ARB_depth_texture,
                              <br>
                                  GL_ARB_draw_buffers,
                              GL_ARB_draw_buffers_blend, <br>
                                  GL_ARB_draw_elements_base_vertex,
                              GL_ARB_draw_instanced, <br>
                                  GL_ARB_explicit_attrib_location,
                              GL_ARB_fragment_coord_conventions, <br>
                                  GL_ARB_fragment_program,
                              GL_ARB_fragment_program_shadow, <br>
                                  GL_ARB_fragment_shader,
                              GL_ARB_framebuffer_object, <br>
                                  GL_ARB_framebuffer_sRGB,
                              GL_ARB_get_program_binary, <br>
                                  GL_ARB_half_float_pixel,
                              GL_ARB_half_float_vertex, <br>
                                  GL_ARB_instanced_arrays,
                              GL_ARB_internalformat_query, <br>
                                  GL_ARB_invalidate_subdata,
                              GL_ARB_map_buffer_range,
                              GL_ARB_multisample, <br>
                                  GL_ARB_multitexture,
                              GL_ARB_occlusion_query,
                              GL_ARB_occlusion_query2, <br>
                                  GL_ARB_pixel_buffer_object,
                              GL_ARB_point_parameters,
                              GL_ARB_point_sprite, <br>
                                  GL_ARB_provoking_vertex,
                              GL_ARB_robustness, GL_ARB_sampler_objects,
                              <br>
                                  GL_ARB_seamless_cube_map,
                              GL_ARB_shader_bit_encoding, <br>
                                  GL_ARB_shader_objects,
                              GL_ARB_shader_texture_lod, <br>
                                  GL_ARB_shading_language_100,
                              GL_ARB_shading_language_420pack, <br>
                                  GL_ARB_shading_language_packing,
                              GL_ARB_shadow, GL_ARB_sync, <br>
                                  GL_ARB_texture_border_clamp,
                              GL_ARB_texture_compression, <br>
                                  GL_ARB_texture_compression_rgtc,
                              GL_ARB_texture_cube_map, <br>
                                  GL_ARB_texture_cube_map_array,
                              GL_ARB_texture_env_add, <br>
                                  GL_ARB_texture_env_combine,
                              GL_ARB_texture_env_crossbar, <br>
                                  GL_ARB_texture_env_dot3,
                              GL_ARB_texture_float, <br>
                                  GL_ARB_texture_mirrored_repeat,
                              GL_ARB_texture_multisample, <br>
                                  GL_ARB_texture_non_power_of_two,
                              GL_ARB_texture_query_lod, <br>
                                  GL_ARB_texture_rectangle,
                              GL_ARB_texture_rg,
                              GL_ARB_texture_rgb10_a2ui, <br>
                                  GL_ARB_texture_storage,
                              GL_ARB_texture_storage_multisample, <br>
                                  GL_ARB_texture_swizzle,
                              GL_ARB_timer_query,
                              GL_ARB_transpose_matrix, <br>
                                  GL_ARB_uniform_buffer_object,
                              GL_ARB_vertex_array_bgra, <br>
                                  GL_ARB_vertex_array_object,
                              GL_ARB_vertex_buffer_object, <br>
                                  GL_ARB_vertex_program,
                              GL_ARB_vertex_shader, <br>
                                  GL_ARB_vertex_type_2_10_10_10_rev,
                              GL_ARB_window_pos, <br>
                                  GL_ATI_blend_equation_separate,
                              GL_ATI_draw_buffers, <br>
                                  GL_ATI_envmap_bumpmap,
                              GL_ATI_separate_stencil, <br>
                                  GL_ATI_texture_env_combine3,
                              GL_ATI_texture_float, GL_EXT_abgr, <br>
                                  GL_EXT_bgra, GL_EXT_blend_color,
                              GL_EXT_blend_equation_separate, <br>
                                  GL_EXT_blend_func_separate,
                              GL_EXT_blend_minmax,
                              GL_EXT_blend_subtract, <br>
                                  GL_EXT_compiled_vertex_array,
                              GL_EXT_copy_texture, GL_EXT_draw_buffers2,
                              <br>
                                  GL_EXT_draw_instanced,
                              GL_EXT_draw_range_elements,
                              GL_EXT_fog_coord, <br>
                                  GL_EXT_framebuffer_blit,
                              GL_EXT_framebuffer_multisample, <br>
                                 
                              GL_EXT_framebuffer_multisample_blit_scaled,
                              GL_EXT_framebuffer_object, <br>
                                  GL_EXT_framebuffer_sRGB,
                              GL_EXT_gpu_program_parameters, <br>
                                  GL_EXT_multi_draw_arrays,
                              GL_EXT_packed_depth_stencil, <br>
                                  GL_EXT_packed_float,
                              GL_EXT_packed_pixels,
                              GL_EXT_pixel_buffer_object, <br>
                                  GL_EXT_point_parameters,
                              GL_EXT_polygon_offset,
                              GL_EXT_provoking_vertex, <br>
                                  GL_EXT_rescale_normal,
                              GL_EXT_secondary_color, <br>
                                  GL_EXT_separate_shader_objects,
                              GL_EXT_separate_specular_color, <br>
                                  GL_EXT_shadow_funcs,
                              GL_EXT_stencil_two_side,
                              GL_EXT_stencil_wrap, <br>
                                  GL_EXT_subtexture, GL_EXT_texture,
                              GL_EXT_texture3D, <br>
                                  GL_EXT_texture_array,
                              GL_EXT_texture_compression_dxt1, <br>
                                  GL_EXT_texture_compression_rgtc,
                              GL_EXT_texture_cube_map, <br>
                                  GL_EXT_texture_edge_clamp,
                              GL_EXT_texture_env_add, <br>
                                  GL_EXT_texture_env_combine,
                              GL_EXT_texture_env_dot3, <br>
                                  GL_EXT_texture_filter_anisotropic,
                              GL_EXT_texture_integer, <br>
                                  GL_EXT_texture_lod_bias,
                              GL_EXT_texture_object,
                              GL_EXT_texture_rectangle, <br>
                                  GL_EXT_texture_sRGB,
                              GL_EXT_texture_sRGB_decode, <br>
                                  GL_EXT_texture_shared_exponent,
                              GL_EXT_texture_snorm, <br>
                                  GL_EXT_texture_swizzle,
                              GL_EXT_timer_query,
                              GL_EXT_transform_feedback, <br>
                                  GL_EXT_vertex_array,
                              GL_EXT_vertex_array_bgra, <br>
                                  GL_IBM_multimode_draw_arrays,
                              GL_IBM_rasterpos_clip, <br>
                                  GL_IBM_texture_mirrored_repeat,
                              GL_INGR_blend_func_separate, <br>
                                  GL_MESA_pack_invert,
                              GL_MESA_texture_array,
                              GL_MESA_texture_signed_rgba, <br>
                                  GL_MESA_window_pos,
                              GL_MESA_ycbcr_texture, GL_NV_blend_square,
                              <br>
                                  GL_NV_conditional_render,
                              GL_NV_depth_clamp,
                              GL_NV_light_max_exponent, <br>
                                  GL_NV_packed_depth_stencil,
                              GL_NV_primitive_restart, <br>
                                  GL_NV_texgen_reflection,
                              GL_NV_texture_env_combine4, <br>
                                  GL_NV_texture_rectangle,
                              GL_OES_EGL_image, GL_OES_read_format, <br>
                                  GL_S3_s3tc, GL_SGIS_generate_mipmap,
                              GL_SGIS_texture_border_clamp, <br>
                                  GL_SGIS_texture_edge_clamp,
                              GL_SGIS_texture_lod,
                              GL_SUN_multi_draw_arrays<br>
                              <br>
                              20 GLX Visuals<br>
                                  visual  x   bf lv rg d st 
                              colorbuffer  sr ax dp st accumbuffer  ms 
                              cav<br>
                                id dep cl sp  sz l  ci b ro  r  g  b  a
                              F gb bf th cl  r  g  b  a ns b eat<br>
----------------------------------------------------------------------------<br>
                              0x042 24 tc  0  32  0 r  y .   8  8  8  8
                              .  .  0 24  8  0  0  0  0  0 0 None<br>
                              0x043 24 dc  0  32  0 r  y .   8  8  8  8
                              .  .  0 24  8  0  0  0  0  0 0 None<br>
                              0x0ad 24 tc  0  32  0 r  y .   8  8  8  8
                              .  .  0  0  0  0  0  0  0  0 0 None<br>
                              0x0ae 24 tc  0  32  0 r  . .   8  8  8  8
                              .  .  0  0  0  0  0  0  0  0 0 None<br>
                              0x0af 24 tc  0  32  0 r  . .   8  8  8  8
                              .  .  0 24  8  0  0  0  0  0 0 None<br>
                              0x0b0 24 tc  0  32  0 r  y .   8  8  8  8
                              .  .  0 24  8 16 16 16 16  0 0 Slow<br>
                              0x0b1 24 tc  0  32  0 r  y .   8  8  8  8
                              .  .  0  0  0  0  0  0  0  4 1 None<br>
                              0x0b2 24 tc  0  32  0 r  y .   8  8  8  8
                              .  .  0  0  0  0  0  0  0  8 1 None<br>
                              0x0b3 24 tc  0  32  0 r  y .   8  8  8  8
                              .  .  0 24  8  0  0  0  0  4 1 None<br>
                              0x0b4 24 tc  0  32  0 r  y .   8  8  8  8
                              .  .  0 24  8  0  0  0  0  8 1 None<br>
                              0x0b5 24 dc  0  32  0 r  y .   8  8  8  8
                              .  .  0  0  0  0  0  0  0  0 0 None<br>
                              0x0b6 24 dc  0  32  0 r  . .   8  8  8  8
                              .  .  0  0  0  0  0  0  0  0 0 None<br>
                              0x0b7 24 dc  0  32  0 r  . .   8  8  8  8
                              .  .  0 24  8  0  0  0  0  0 0 None<br>
                              0x0b8 24 dc  0  32  0 r  y .   8  8  8  8
                              .  .  0 24  8  0  0  0  0  0 0 None<br>
                              0x0b9 24 dc  0  32  0 r  y .   8  8  8  8
                              .  .  0 24  8 16 16 16 16  0 0 Slow<br>
                              0x0ba 24 dc  0  32  0 r  y .   8  8  8  8
                              .  .  0  0  0  0  0  0  0  4 1 None<br>
                              0x0bb 24 dc  0  32  0 r  y .   8  8  8  8
                              .  .  0  0  0  0  0  0  0  8 1 None<br>
                              0x0bc 24 dc  0  32  0 r  y .   8  8  8  8
                              .  .  0 24  8  0  0  0  0  4 1 None<br>
                              0x0bd 24 dc  0  32  0 r  y .   8  8  8  8
                              .  .  0 24  8  0  0  0  0  8 1 None<br>
                              0x080 32 tc  0  32  0 r  y .   8  8  8  8
                              .  .  0 24  8  0  0  0  0  0 0 None<br>
                              <br>
                              44 GLXFBConfigs:<br>
                                  visual  x   bf lv rg d st 
                              colorbuffer  sr ax dp st accumbuffer  ms 
                              cav<br>
                                id dep cl sp  sz l  ci b ro  r  g  b  a
                              F gb bf th cl  r  g  b  a ns b eat<br>
----------------------------------------------------------------------------<br>
                              0x081  0 tc  0  16  0 r  y .   5  6  5  0
                              .  .  0  0  0  0  0  0  0  0 0 None<br>
                              0x082  0 tc  0  16  0 r  . .   5  6  5  0
                              .  .  0  0  0  0  0  0  0  0 0 None<br>
                              0x083  0 tc  0  16  0 r  y .   5  6  5  0
                              .  .  0 16  0  0  0  0  0  0 0 None<br>
                              0x084  0 tc  0  16  0 r  . .   5  6  5  0
                              .  .  0 16  0  0  0  0  0  0 0 None<br>
                              0x085  0 tc  0  16  0 r  y .   5  6  5  0
                              .  .  0 24  8  0  0  0  0  0 0 None<br>
                              0x086  0 tc  0  16  0 r  . .   5  6  5  0
                              .  .  0 24  8  0  0  0  0  0 0 None<br>
                              0x087 24 tc  0  32  0 r  y .   8  8  8  8
                              .  .  0  0  0  0  0  0  0  0 0 None<br>
                              0x088 24 tc  0  32  0 r  . .   8  8  8  8
                              .  .  0  0  0  0  0  0  0  0 0 None<br>
                              0x089 24 tc  0  32  0 r  y .   8  8  8  8
                              .  .  0 24  8  0  0  0  0  0 0 None<br>
                              0x08a 24 tc  0  32  0 r  . .   8  8  8  8
                              .  .  0 24  8  0  0  0  0  0 0 None<br>
                              0x08b  0 tc  0  16  0 r  y .   5  6  5  0
                              .  .  0 16  0  0  0  0  0  0 0 None<br>
                              0x08c  0 tc  0  16  0 r  y .   5  6  5  0
                              .  .  0 16  0 16 16 16  0  0 0 Slow<br>
                              0x08d 32 tc  0  32  0 r  y .   8  8  8  8
                              .  .  0 24  8  0  0  0  0  0 0 None<br>
                              0x08e 24 tc  0  32  0 r  y .   8  8  8  8
                              .  .  0 24  8 16 16 16 16  0 0 Slow<br>
                              0x08f  0 tc  0  16  0 r  y .   5  6  5  0
                              .  .  0  0  0  0  0  0  0  4 1 None<br>
                              0x090  0 tc  0  16  0 r  y .   5  6  5  0
                              .  .  0  0  0  0  0  0  0  8 1 None<br>
                              0x091  0 tc  0  16  0 r  y .   5  6  5  0
                              .  .  0 16  0  0  0  0  0  4 1 None<br>
                              0x092  0 tc  0  16  0 r  y .   5  6  5  0
                              .  .  0 16  0  0  0  0  0  8 1 None<br>
                              0x093 24 tc  0  32  0 r  y .   8  8  8  8
                              .  .  0  0  0  0  0  0  0  4 1 None<br>
                              0x094 24 tc  0  32  0 r  y .   8  8  8  8
                              .  .  0  0  0  0  0  0  0  8 1 None<br>
                              0x095 24 tc  0  32  0 r  y .   8  8  8  8
                              .  .  0 24  8  0  0  0  0  4 1 None<br>
                              0x096 24 tc  0  32  0 r  y .   8  8  8  8
                              .  .  0 24  8  0  0  0  0  8 1 None<br>
                              0x097  0 dc  0  16  0 r  y .   5  6  5  0
                              .  .  0  0  0  0  0  0  0  0 0 None<br>
                              0x098  0 dc  0  16  0 r  . .   5  6  5  0
                              .  .  0  0  0  0  0  0  0  0 0 None<br>
                              0x099  0 dc  0  16  0 r  y .   5  6  5  0
                              .  .  0 16  0  0  0  0  0  0 0 None<br>
                              0x09a  0 dc  0  16  0 r  . .   5  6  5  0
                              .  .  0 16  0  0  0  0  0  0 0 None<br>
                              0x09b  0 dc  0  16  0 r  y .   5  6  5  0
                              .  .  0 24  8  0  0  0  0  0 0 None<br>
                              0x09c  0 dc  0  16  0 r  . .   5  6  5  0
                              .  .  0 24  8  0  0  0  0  0 0 None<br>
                              0x09d 24 dc  0  32  0 r  y .   8  8  8  8
                              .  .  0  0  0  0  0  0  0  0 0 None<br>
                              0x09e 24 dc  0  32  0 r  . .   8  8  8  8
                              .  .  0  0  0  0  0  0  0  0 0 None<br>
                              0x09f 24 dc  0  32  0 r  y .   8  8  8  8
                              .  .  0 24  8  0  0  0  0  0 0 None<br>
                              0x0a0 24 dc  0  32  0 r  . .   8  8  8  8
                              .  .  0 24  8  0  0  0  0  0 0 None<br>
                              0x0a1  0 dc  0  16  0 r  y .   5  6  5  0
                              .  .  0 16  0  0  0  0  0  0 0 None<br>
                              0x0a2  0 dc  0  16  0 r  y .   5  6  5  0
                              .  .  0 16  0 16 16 16  0  0 0 Slow<br>
                              0x0a3 24 dc  0  32  0 r  y .   8  8  8  8
                              .  .  0 24  8  0  0  0  0  0 0 None<br>
                              0x0a4 24 dc  0  32  0 r  y .   8  8  8  8
                              .  .  0 24  8 16 16 16 16  0 0 Slow<br>
                              0x0a5  0 dc  0  16  0 r  y .   5  6  5  0
                              .  .  0  0  0  0  0  0  0  4 1 None<br>
                              0x0a6  0 dc  0  16  0 r  y .   5  6  5  0
                              .  .  0  0  0  0  0  0  0  8 1 None<br>
                              0x0a7  0 dc  0  16  0 r  y .   5  6  5  0
                              .  .  0 16  0  0  0  0  0  4 1 None<br>
                              0x0a8  0 dc  0  16  0 r  y .   5  6  5  0
                              .  .  0 16  0  0  0  0  0  8 1 None<br>
                              0x0a9 24 dc  0  32  0 r  y .   8  8  8  8
                              .  .  0  0  0  0  0  0  0  4 1 None<br>
                              0x0aa 24 dc  0  32  0 r  y .   8  8  8  8
                              .  .  0  0  0  0  0  0  0  8 1 None<br>
                              0x0ab 24 dc  0  32  0 r  y .   8  8  8  8
                              .  .  0 24  8  0  0  0  0  4 1 None<br>
                              0x0ac 24 dc  0  32  0 r  y .   8  8  8  8
                              .  .  0 24  8  0  0  0  0  8 1 None<br>
                              <br>
                              <br>
                              <div>On 10/13/2014 07:42 PM, Aashish
                                Chaudhary wrote:<br>
                              </div>
                              <blockquote type="cite">
                                <div dir="ltr">What graphics card /
                                  graphics driver version / OS this
                                  system has? 
                                  <div><br>
                                  </div>
                                  <div>- Aashish</div>
                                </div>
                                <div class="gmail_extra"><br>
                                  <div class="gmail_quote">On Mon, Oct
                                    13, 2014 at 1:41 PM, B.W.H. van
                                    Beest <span dir="ltr"><<a
                                        moz-do-not-send="true"
                                        href="mailto:bwvb@xs4all.nl"
                                        target="_blank">bwvb@xs4all.nl</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"> Hi Aashish, <br>
                                        <br>
                                        This is what I do:<br>
                                        1. start paraview<br>
                                        2. Sources -> Wavelet ->
                                        Apply.<br>
                                             A cube is displayed
                                        (Outline representation).<br>
                                        3. Select 'Volume"
                                        representation"<br>
                                        <br>
                                        cube disappears. Then: <br>
                                        =====================<br>
                                        Generic Warning: In
                                        /usr/local/git/ParaView/VTK/Rendering/VolumeOpenGL/vtkOpenGLGPUVolumeRayCastMapper.cxx,








                                        line 487<br>
                                        failed at glBindTexture 1 OpenGL
                                        errors detected<br>
                                          0 : (1282) Invalid operation<br>
                                        <br>
                                        <br>
                                        <br>
                                        Generic Warning: In
                                        /usr/local/git/ParaView/VTK/Rendering/VolumeOpenGL/vtkOpenGLGPUVolumeRayCastMapper.cxx,








                                        line 487<br>
                                        failed at glBindTexture 1 OpenGL
                                        errors detected<br>
                                          0 : (1282) Invalid operation<br>
                                        <br>
                                        <br>
                                        <br>
                                        Generic Warning: In
                                        /usr/local/git/ParaView/VTK/Rendering/VolumeOpenGL/vtkOpenGLGPUVolumeRayCastMapper.cxx,








                                        line 487<br>
                                        failed at glBindTexture 1 OpenGL
                                        errors detected<br>
                                          0 : (1282) Invalid operation<br>
                                        =========================
                                        <div>
                                          <div><br>
                                            <br>
                                            <br>
                                            <br>
                                            <br>
                                            <br>
                                            <div>On 10/13/2014 07:35 PM,
                                              Aashish Chaudhary wrote:<br>
                                            </div>
                                            <blockquote type="cite">
                                              <div dir="ltr">So when you
                                                created a wavelet source
                                                and change the
                                                representation to volume
                                                you got the errors? Can
                                                you post those errors? 
                                                <div><br>
                                                </div>
                                                <div>Thanks,</div>
                                                <div><br>
                                                </div>
                                              </div>
                                              <div class="gmail_extra"><br>
                                                <div class="gmail_quote">On


                                                  Mon, Oct 13, 2014 at
                                                  1:33 PM, B.W.H. van
                                                  Beest <span dir="ltr"><<a
moz-do-not-send="true" href="mailto:bwvb@xs4all.nl" target="_blank">bwvb@xs4all.nl</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">
                                                      Aashish, <br>
                                                      <br>
                                                      Thanks for the
                                                      suggestion.<br>
                                                      <br>
                                                      However, doing
                                                      this gives me all
                                                      kinds of opengl
                                                      errors (invalid
                                                      instruction).<br>
                                                      <br>
                                                      Besides that, the
                                                      wavelet gives me a
                                                      cube indeed, but I
                                                      need to understand
                                                      when <br>
                                                      I can have a
                                                      volume rendering.
                                                      I created new
                                                      Source's (e.g.
                                                      tri-prism, a
                                                      wedge, <br>
                                                      a box with
                                                      boundaries of
                                                      finite thickness
                                                      etc.). But I
                                                      cannot get volume
                                                      rendering<br>
                                                      to work, grrrrrr.
                                                      (See other thread)<br>
                                                      <br>
                                                      Kind Regards,<br>
                                                      Bertwim
                                                      <div>
                                                        <div><br>
                                                          <br>
                                                          <br>
                                                          <div>On
                                                          10/13/2014
                                                          05:28 PM,
                                                          Aashish
                                                          Chaudhary
                                                          wrote:<br>
                                                          </div>
                                                          <blockquote
                                                          type="cite">
                                                          <div dir="ltr">You


                                                          can create a
                                                          wavelet source
                                                          and then
                                                          display it as
                                                          a volume. 
                                                          <div><br>
                                                          </div>
                                                          <div><br>
                                                          </div>
                                                          </div>
                                                          <div
                                                          class="gmail_extra"><br>
                                                          <div
                                                          class="gmail_quote">On



                                                          Fri, Oct 10,
                                                          2014 at 3:45
                                                          PM, B.W.H. van
                                                          Beest <span
                                                          dir="ltr"><<a
moz-do-not-send="true" href="mailto:bwvb@xs4all.nl" target="_blank">bwvb@xs4all.nl</a>></span>
                                                          wrote:<br>
                                                          <blockquote
                                                          class="gmail_quote"
                                                          style="margin:0


                                                          0 0
                                                          .8ex;border-left:1px
                                                          #ccc
                                                          solid;padding-left:1ex">Can





                                                          perhaps
                                                          somebody point
                                                          me how to
                                                          address the
                                                          following.<br>
                                                          <br>
                                                          When I create
                                                          a new source
                                                          (say: a box) I
                                                          get an a box
                                                          that<br>
                                                          can be
                                                          displayed via
                                                          its surfaces,
                                                          its
                                                          constituing
                                                          points, or
                                                          wireframe<br>
representation.<br>
                                                          But I need a
                                                          volume
                                                          rendering (so
                                                          that I can add
                                                          e.g. a
                                                          clipping
                                                          plane)<br>
                                                          How do I get
                                                          that?<br>
                                                          <br>
                                                          Regards,<br>
                                                          Bertwim<br>
                                                          <br>
                                                          <br>
                                                          <br>
_______________________________________________<br>
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                                                          -- <br>
                                                          <div dir="ltr"><font
                                                          face="trebuchet


                                                          ms,
                                                          sans-serif"><i>|
                                                          Aashish
                                                          Chaudhary <br>
                                                          | Technical
                                                          Leader      
                                                            <br>
                                                          | Kitware
                                                          Inc.         
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                                                          ms,
                                                          sans-serif">| </font><a
moz-do-not-send="true"
                                                          href="http://www.kitware.com/company/team/chaudhary.html"
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                                                -- <br>
                                                <div dir="ltr"><font
                                                    face="trebuchet ms,
                                                    sans-serif"><i>|
                                                      Aashish Chaudhary
                                                      <br>
                                                      | Technical Leader
                                                              <br>
                                                      | Kitware Inc.   
                                                              <br>
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                                  -- <br>
                                  <div dir="ltr"><font face="trebuchet
                                      ms, sans-serif"><i>| Aashish
                                        Chaudhary <br>
                                        | Technical Leader         <br>
                                        | Kitware Inc.            <br>
                                      </i></font>
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                              <br>
                              <pre>_______________________________________________
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                          </blockquote>
                          <br>
                          <br>
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                          <br>
                          <pre>_______________________________________________
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                <br>
                _______________________________________________<br>
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            -- <br>
            <div dir="ltr"><font face="trebuchet ms, sans-serif"><i>|
                  Aashish Chaudhary <br>
                  | Technical Leader         <br>
                  | Kitware Inc.            <br>
                </i></font>
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        <br>
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        <br>
        <pre wrap="">_______________________________________________
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