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<p class="MsoNormal"><span style="font-size:11.0pt; font-family:"Calibri","sans-serif"; color:#1F497D">Hi Aashish,</span></p>
<p class="MsoNormal"><span style="font-size:11.0pt; font-family:"Calibri","sans-serif"; color:#1F497D"> </span></p>
<p class="MsoNormal"><span style="font-size:11.0pt; font-family:"Calibri","sans-serif"; color:#1F497D">Thank you for your replay.</span></p>
<p class="MsoNormal"><span style="font-size:11.0pt; font-family:"Calibri","sans-serif"; color:#1F497D"> </span></p>
<p class="MsoNormal"><span style="font-size:11.0pt; font-family:"Calibri","sans-serif"; color:#1F497D">></span> You mean when you go to the next time-step? (not sure what you are referring to actor's change)</p>
<p class="MsoNormal"><span style="font-size:11.0pt; font-family:"Calibri","sans-serif"; color:#1F497D">Yes</span></p>
<p class="MsoNormal"><span style="font-size:11.0pt; font-family:"Calibri","sans-serif"; color:#1F497D"> </span></p>
<p class="MsoNormal"><span style="font-size:11.0pt; font-family:"Calibri","sans-serif"; color:#1F497D">></span> Are you creating vtkVolume for each timestamp or do you have only one that you are trying to re-use?</p>
<p class="MsoNormal"><span style="font-size:11.0pt; font-family:"Calibri","sans-serif"; color:#1F497D">I created vtkVolume for each timestamp.</span></p>
<p class="MsoNormal"><span style="font-size:11.0pt; font-family:"Calibri","sans-serif"; color:#1F497D"> </span></p>
<p class="MsoNormal"><span style="font-size:11.0pt; font-family:"Calibri","sans-serif"; color:#1F497D">Kenji</span></p>
<p class="MsoNormal"><span style="font-size:11.0pt; font-family:"Calibri","sans-serif"; color:#1F497D"> </span></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt; font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt; font-family:"Tahoma","sans-serif""> Aashish Chaudhary [mailto:aashish.chaudhary@kitware.com]
<br>
<b>Sent:</b> Monday, December 07, 2015 10:11 AM<br>
<b>To:</b> Kenji Tsumura<br>
<b>Cc:</b> vtkusers@vtk.org<br>
<b>Subject:</b> Re: [vtkusers] volume rendering and animation</span></p>
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<p class="MsoNormal">Hi Kenji</p>
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<p class="MsoNormal"> </p>
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<p class="MsoNormal">On Mon, Dec 7, 2015 at 10:46 AM, Kenji Tsumura <<a href="mailto:kenji.tsumura@neosoftmedical.com" target="_blank">kenji.tsumura@neosoftmedical.com</a>> wrote:</p>
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<p class="MsoNormal" style="">Hello,</p>
<p class="MsoNormal" style=""> </p>
<p class="MsoNormal" style="">I have 3D cardiac MRI data (4D including time domain). I can display volume rendering of the data using vtkSmartVolumeMapper.</p>
<p class="MsoNormal" style="">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" style="">Even when there is no user interaction, vtk seems to perform volume rendering every time actors change.</p>
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<p class="MsoNormal">You mean when you go to the next time-step? (not sure what you are referring to actor's change)</p>
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<p class="MsoNormal" style="">Are there any way for vtk to not perform volume rendering every time actors change by caching or something?</p>
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<p class="MsoNormal">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?</p>
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<p class="MsoNormal"> </p>
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<p class="MsoNormal" style="">I was wondering if vtkMultiBlockDataSet or vtkTemporal*** can be utilized, but was unable to find a solution.</p>
<p class="MsoNormal" style=""> </p>
<p class="MsoNormal" style="">Thank you,</p>
<p class="MsoNormal" style=""><span style="color:#888888"> </span></p>
<p class="MsoNormal" style=""><span style="color:#222222; background:white">-- </span><span style="color:#888888"></span></p>
<p class="MsoNormal" style=""><span style="color:#1F497D">Kenji Tsumura</span><span style="color:#888888"></span></p>
<p class="MsoNormal" style=""><span style="color:#222222"> </span><span style="color:#888888"></span></p>
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<p class="MsoNormal">-- </p>
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<p class="MsoNormal"><i><span style="font-family:"Trebuchet MS","sans-serif"">| Aashish Chaudhary
<br>
| Technical Leader <br>
| Kitware Inc. </span></i></p>
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<p class="MsoNormal"><i><span style="font-family:"Trebuchet MS","sans-serif"">| </span><a href="http://www.kitware.com/company/team/chaudhary.html" target="_blank">http://www.kitware.com/company/team/chaudhary.html</a></i></p>
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