<div dir="ltr">Hi Kenji<br><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Dec 7, 2015 at 10:46 AM, Kenji Tsumura <span dir="ltr"><<a href="mailto:kenji.tsumura@neosoftmedical.com" target="_blank">kenji.tsumura@neosoftmedical.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<p class="MsoNormal">Hello,</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">I have 3D cardiac MRI data (4D including time domain). I can display volume rendering of the data using vtkSmartVolumeMapper.</p>
<p class="MsoNormal">When I tried to do animation (CINE) by changing actors every time TimerEvent occurs, it is slow (using CPU or GPU).
</p>
<p class="MsoNormal">Even when there is no user interaction, vtk seems to perform volume rendering every time actors change.</p></div></div></blockquote><div><br></div><div>You mean when you go to the next time-step? (not sure what you are referring to actor's change)</div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div lang="EN-US" link="blue" vlink="purple"><div>
<p class="MsoNormal">Are there any way for vtk to not perform volume rendering every time actors change by caching or something?</p></div></div></blockquote><div><br></div><div>If I understand your problem, no there is no direct way. If you have multiple vtkVolume, and you are not going over the video memory limit, atleast, data transfer shouldn't happen every time. Are you creating vtkVolume for each timestamp or do you have only one that you are trying to re-use?</div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div lang="EN-US" link="blue" vlink="purple"><div>
<p class="MsoNormal">I was wondering if vtkMultiBlockDataSet or vtkTemporal*** can be utilized, but was unable to find a solution.</p>
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<p class="MsoNormal">Thank you,</p><span class="HOEnZb"><font color="#888888">
<p class="MsoNormal"> </p>
<p class="MsoNormal"><span style="color:#222222;background:white">-- </span></p>
<p class="MsoNormal"><span style="color:#1f497d">Kenji Tsumura</span><span style="color:#222222"></span></p>
<p class="MsoNormal"><span style="color:#222222"> </span></p>
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<br></blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="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>
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