<div dir="ltr">Does it work if you configure VTK with VTK_USE_64BIT_IDS set to ON?<div style><br></div><div style>That changes the size of vtkIdType and it may just work then.</div><div style><br></div></div><div class="gmail_extra">
<br clear="all"><div>David E DeMarle<br>Kitware, Inc.<br>R&D Engineer<br>21 Corporate Drive<br>Clifton Park, NY 12065-8662<br>Phone: 518-881-4909</div>
<br><br><div class="gmail_quote">On Sun, Nov 17, 2013 at 12:32 PM, Frank Gao <span dir="ltr"><<a href="mailto:Frank.Gao@guidemia.com" target="_blank">Frank.Gao@guidemia.com</a>></span> wrote:<br><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"><span style="font-size:11.0pt;font-family:"Calibri","serif";color:#1f497d">Hi Aashish,<u></u><u></u></span></p><p class="MsoNormal">
<span style="font-size:11.0pt;font-family:"Calibri","serif";color:#1f497d"><u></u> <u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","serif";color:#1f497d">Thanks for your reply. I figured out the problem. It’s not the two card problem. The code to acquire the dedicated graphics card memory returns a large negative value, so the rendering code just returns.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","serif";color:#1f497d"><u></u> <u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","serif";color:#1f497d">The amount of memory is declared as vtkIdType, which is integer. So I guessed two possibilities: the D3D code to return memory is run, or a long integer is converted to an integer and resulted in a negative value.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","serif";color:#1f497d"><u></u> <u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","serif";color:#1f497d">We should upgrade to newer version soon. The GPU ray cast mapper returns 128MB if it cannot determine the graphics card memory size, which is too small nowadays. <u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","serif";color:#1f497d"><u></u> <u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","serif";color:#1f497d">Best regards,<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","serif";color:#1f497d">Frank<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","serif";color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri","serif"">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri","serif""> <a href="mailto:vtkusers-bounces@vtk.org" target="_blank">vtkusers-bounces@vtk.org</a> [mailto:<a href="mailto:vtkusers-bounces@vtk.org" target="_blank">vtkusers-bounces@vtk.org</a>] <b>On Behalf Of </b>Aashish Chaudhary<br>
<b>Sent:</b> Sunday, November 17, 2013 8:58 AM<br><b>To:</b> Frank Gao<br><b>Cc:</b> vtkusers<br><b>Subject:</b> Re: [vtkusers] VTK with two graphics card<u></u><u></u></span></p><div><div class="h5"><p class="MsoNormal">
<u></u> <u></u></p><div><p class="MsoNormal">Frank, <u></u><u></u></p><div><p class="MsoNormal"><u></u> <u></u></p></div><div><p class="MsoNormal">Can you try the newer version of VTK (However, I am not sure if that will change this behavior). <u></u><u></u></p>
</div><div><p class="MsoNormal"><u></u> <u></u></p></div><div><p class="MsoNormal">This is Mac 10.8? <u></u><u></u></p></div><div><p class="MsoNormal"><u></u> <u></u></p></div><div><p class="MsoNormal">- Aashish<u></u><u></u></p>
</div></div><div><p class="MsoNormal" style="margin-bottom:12.0pt"><u></u> <u></u></p><div><p class="MsoNormal">On Sun, Nov 17, 2013 at 1:31 AM, Frank Gao <<a href="mailto:Frank.Gao@guidemia.com" target="_blank">Frank.Gao@guidemia.com</a>> wrote:<u></u><u></u></p>
<blockquote style="border:none;border-left:solid #cccccc 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in"><p class="MsoNormal">Hello All,<br><br>There was a post last year related volume rendering with a system with two graphics card (Posted by Ian Lindsay). <a href="http://marc.info/?l=vtkusers&m=133059379506480" target="_blank">http://marc.info/?l=vtkusers&m=133059379506480</a>. Here again:<br>
<br>Many laptops have two graphics cards Intel HD and nVidia for example. I am trying to do volume rendering. The LoadExtension call returns true, and I went through the code, the system identified the nVidia card, all the extensions are good. However, when the volume rendering is actually done, obviously it goes to the HD card. Nothing is rendered.<br>
<br>This basically make the nVidia card useless. Please note it does not help if I set the program to run with the high end card, and the HD card cannot be disabled either.<br><br>Can somebody please help? By the way I am still using V5.4.<br>
<br>Your reply is highly appreciated.<br><br>Best regards,<br>Frank Gao<br><br><br>_______________________________________________<br>Powered by <a href="http://www.kitware.com" target="_blank">www.kitware.com</a><br><br>
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<br><br clear="all"><u></u><u></u></p><div><p class="MsoNormal"><u></u> <u></u></p></div><p class="MsoNormal">-- <br>| Aashish Chaudhary <br>| R&D Engineer <br>| Kitware Inc. <br>| <a href="http://www.kitware.com" target="_blank">www.kitware.com</a> <u></u><u></u></p>
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