<div dir="ltr">I am not aware of any plans for <span style="color:rgb(33,33,33)"> volume rendering for rectilinear volume but as I David mentioned, sampling it to the image space is what we have discussed / talked about. </span><div><span style="color:rgb(33,33,33)"><br></span></div><div><span style="color:rgb(33,33,33)">- aashish</span></div></div><br><div class="gmail_quote"><div dir="ltr">On Fri, Apr 27, 2018 at 12:30 PM David E DeMarle <<a href="mailto:dave.demarle@kitware.com">dave.demarle@kitware.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Not that I know of.<div><br></div><div>We are more likely to make the conversion to image based volume rendering automatic, faster and more precise.</div><div><br></div></div><div class="gmail_extra"></div><div class="gmail_extra"><br clear="all"><div><div class="m_8300956982066722817gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div>David E DeMarle<br>Kitware, Inc.<br>Principal Engineer<br>21 Corporate Drive<br>Clifton Park, NY 12065-8662<br>Phone: <a href="tel:(518)%20881-4909" value="+15188814909" target="_blank">518-881-4909</a></div></div></div></div></div></div>
<br></div><div class="gmail_extra"><div class="gmail_quote">On Fri, Apr 27, 2018 at 12:23 PM, 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 class="m_8300956982066722817m_-4104502028794987040moz-cite-prefix">Hi David,<br>
      <br>
      Thanks for confirming it. Does Kitware have a plan to implement
      volume rendering for rectilinear volume? You see the spectrum from
      vtkImageData, to vtkRectilinearGrid, vtkStructuredGrid --- volume
      rendering is implemented on both ends but not for the middle one,
      which is a bit odd to the user. <br>
      <br>
      Best,<br>
      Weiguang</div></div></blockquote></div></div><div class="gmail_extra"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div text="#000000" bgcolor="#FFFFFF"><div class="m_8300956982066722817m_-4104502028794987040moz-cite-prefix"><div><div class="m_8300956982066722817h5"><br>
      <br>
      <br>
      On 4/27/2018 12:06 PM, David E DeMarle wrote:<br>
    </div></div></div></div></blockquote></div></div><div class="gmail_extra"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div text="#000000" bgcolor="#FFFFFF"><div><div class="m_8300956982066722817h5">
    <blockquote type="cite">
      <div dir="ltr">You are correct it will not directly volume render
        vtkRectilinearGrids.
        <div><br>
        </div>
        <div>
          <div style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:small;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration-style:initial;text-decoration-color:initial">Use
            threshold filter (all values) to map to a
            vtkUnstructuredGrid for direct rendering but at a cost of
            memory explosion.<br>
          </div>
        </div>
        <div>Apply the resample to image filter to map to vtkImageData
          for fast volume rendering, but at a cost of trading off
          precision for memory size.</div>
        <div><br>
        </div>
      </div>
      <div class="gmail_extra"><br clear="all">
        <div>
          <div class="m_8300956982066722817m_-4104502028794987040gmail_signature" data-smartmail="gmail_signature">
            <div dir="ltr">
              <div>
                <div dir="ltr">
                  <div>David E DeMarle<br>
                    Kitware, Inc.<br>
                    Principal Engineer<br>
                    <a href="https://maps.google.com/?q=21+Corporate+Drive+%0D%0A++++++++++++++++++++Clifton+Park,+NY+12065&entry=gmail&source=g" target="_blank">21 Corporate Drive</a><br>
                    Clifton Park, NY 12065-8662<br>
                    Phone: <a href="tel:(518)%20881-4909" value="+15188814909" target="_blank">518-881-4909</a></div>
                </div>
              </div>
            </div>
          </div>
        </div>
        <br>
        <div class="gmail_quote">On Fri, Apr 27, 2018 at 11:13 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">I didn't a
            test and I'm surprised that Paraview cannot do volume
            rendering on rectilinear data. Can someone confirm it or I
            made a mistake?<br>
            <br>
            Cheers,<br>
            Weiguang<br>
            <br>
            -- <br>
            --<br>
            Weiguang Guan<br>
            Research Scientist<br>
            RHPCS, McMaster University<br>
            Phone: <a href="tel:(905)%20525-9140" value="+19055259140" target="_blank">905-525-9140 x22540</a><br>
            <br>
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    </blockquote>
    <br>
    <br>
    <pre class="m_8300956982066722817m_-4104502028794987040moz-signature" cols="72">-- 
--
Weiguang Guan
Research Scientist
RHPCS, McMaster University
Phone: <a href="tel:(905)%20525-9140" value="+19055259140" target="_blank">905-525-9140 x22540</a>
</pre>
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