Eric, <br><br>Yes you do need to have certain extensions. Now the mapper I have not written myself and hence I am forwarding this email to vtk users list. I hope that the original author would respond to it. <br><br>I will see if we can produce a better message which could list the missing extensions. <br>
<br>Thanks for testing it out. <br><br>~Regards, <br>Aashish<br><br><br><div class="gmail_quote">On Mon, Mar 1, 2010 at 12:56 PM, Eric E. Monson <span dir="ltr"><<a href="mailto:emonson@cs.duke.edu">emonson@cs.duke.edu</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div style="word-wrap: break-word;"><div>Hey Aashish,</div><div><br></div>I've been having trouble with it, too, on my Mac (OS X 10.6.2, PV compiled serial x86_64 arch updated from CVS and rebuilt today, CMake 2.9.20100113). Are there any special hardware requirements, then? I can see the GPU Volume Mapper option, but when I switch over to that from the "Fixed point" mapper I get this error:<div>
<br></div><div>ERROR: In /Users/emonson/Programming/ParaView_cvs/ParaView3/VTK/VolumeRendering/vtkOpenGLGPUVolumeRayCastMapper.cxx, line 4110<br>vtkOpenGLGPUVolumeRayCastMapper (0x12082cc00): Rendering failed because the following OpenGL extensions are required but not supported:<br>
<div>
<span style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;"><div>
<span style="font-size: medium;"><br></span></div></span></div><div><div>(Just as this shows, the list of OpenGL extensions it says are required but not supported is empty...) My graphics card is a NVIDIA GeForce 8800 GT.</div>
<div><br></div><div>Thanks,</div><div>-Eric</div><div><br></div><div><span style="font-size: 12px;"><div>------------------------------------------------------</div><div>Eric E Monson</div><font color="#888888"><div>Duke Visualization Technology Group</div>
<div><br></div><div><br></div></font></span></div><div><div></div><div class="h5"><div>On Mar 1, 2010, at 11:55 AM, Aashish Chaudhary wrote:</div><br><blockquote type="cite">No there is no special option required but you would have to update your paraview cvs copy as the code got into cvs last thursday. <br>
<br>Can you update and compile again? <br><br>Thanks, <br><br><br><br><div class="gmail_quote">
On Sun, Feb 28, 2010 at 2:27 PM, Pierre-Olivier Dallaire <span dir="ltr"><<a href="mailto:pierre-olivier.dallaire@videotron.ca" target="_blank">pierre-olivier.dallaire@videotron.ca</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div style="word-wrap: break-word;">Hi,<div><br></div><div>Do we need to enable a special option in the CMakeCache.txt file in order to get this feature ?</div><div>I compiled the CVS version on Mac and cannot access the GPU option for volume rendering.</div>
<div><br></div><div>Regards,</div><div><br></div><div>PO</div><div><br><div><div><div></div><div><div>On 2010-02-26, at 10:58 AM, Aashish Chaudhary wrote:</div><br></div></div><blockquote type="cite"><div><div>
</div><div>All, <br><br>I am pleased to announce that ParaView3 now has GPU based
volume rendering from VTKEdge. Its currently in CVS and should be able
to make into 3.8 release. <br>Currently it does not work in tile display mode but we are hoping to fix it in near future. Any bug reports are welcome. <br>
<br>Attached is the screen shot.<br><br>~Regards, <br clear="all"><br>-- <br>| Aashish Chaudhary <br>| R&D Engineer <br>| Kitware Inc. <br>| <a href="http://www.kitware.com/" target="_blank">www.kitware.com</a> <br>
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</blockquote></div><br><br clear="all"><br>-- <br>| Aashish Chaudhary <br>| R&D Engineer <br>| Kitware Inc. <br>| <a href="http://www.kitware.com/" target="_blank">www.kitware.com</a> <br>
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