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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New";color:#010001">vtkGPUVolumeRayCastMapper</span><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p></o:p></span></p>
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<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""> Christopher Mullins [mailto:christopher.mullins@kitware.com]
<br>
<b>Sent:</b> Tuesday, May 07, 2013 2:27 PM<br>
<b>To:</b> Doug Hoppes<br>
<b>Cc:</b> vtkusers@vtk.org<br>
<b>Subject:</b> Re: [vtkusers] vtkVolume rotation extremely slow<o:p></o:p></span></p>
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<p class="MsoNormal">Just to be sure, which volume mapper are you using? CPU ray casting can be quite slow.<o:p></o:p></p>
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<p class="MsoNormal">On Tue, May 7, 2013 at 3:17 PM, Doug Hoppes <<a href="mailto:dhoppes@mbfbioscience.com" target="_blank">dhoppes@mbfbioscience.com</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Hi all,<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> Got a question and not sure what’s going on. I have an ATI Radeon HD 7700 graphics card. I can successfully create a small vtkvolume, but, when I try to rotate
the volume, it’s incredibly slow. I saw some postings several years ago about vtk volume issues with the ATI cards.
<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> Any idea’s what’s going on?<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="color:#888888"> <o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="color:#888888">Doug<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="color:#888888"> <o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">-- <br>
Christopher Mullins<o:p></o:p></p>
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<p class="MsoNormal">R&D Engineer<o:p></o:p></p>
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<p class="MsoNormal">Kitware Inc.,<o:p></o:p></p>
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<p class="MsoNormal">919.869.8871<o:p></o:p></p>
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