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<p class="MsoNormal">It’s very easy (and pretty safe) to test.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Just go to the github below – download their latest prebuilt release.<o:p></o:p></p>
<p class="MsoNormal">Extract it somewhere, then copy the opengl32.dll appropriate for your application (32 or 64) into the same directory as your app and that’s it.<o:p></o:p></p>
<p class="MsoNormal">To get back to normal just delete the opengl32.dll at the end<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I haven’t done an exhaustive test, but while it’s a little slower to load it seems to do everything we’re asking of it.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Jesse<o:p></o:p></p>
<p class="MsoNormal">--<o:p></o:p></p>
<p class="MsoNormal">Jesse Kinross-Smith<o:p></o:p></p>
<p class="MsoNormal">Senior Software Engineer - BSW<o:p></o:p></p>
<p class="MsoNormal">Bentley Systems, Fremantle<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><b>From:</b> Todd [mailto:nztoddler@yahoo.com] <br>
<b>Sent:</b> Wednesday, 23 May 2018 4:25 PM<br>
<b>To:</b> Jesse Kinross-Smith <Jesse.Kinross-Smith@bentley.com><br>
<b>Cc:</b> David E DeMarle <dave.demarle@kitware.com>; vtk <vtkusers@vtk.org><br>
<b>Subject:</b> RE: [vtkusers] Failed to get wglChoosePixelFormatARB on VM<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I'd be interested to know whether or not you notice any performance issues using Mesa.<o:p></o:p></p>
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<p class="MsoNormal">On 23 May 2018 3:33 p.m., Jesse Kinross-Smith <<a href="mailto:Jesse.Kinross-Smith@bentley.com">Jesse.Kinross-Smith@bentley.com</a>> wrote:<o:p></o:p></p>
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<p>Ahh! Mesa.. of course! (I’d completely forgotten about that project)<o:p></o:p></p>
<p> <o:p></o:p></p>
<p>All I had to do was install Mesa on the VMs and that has enabled them to use software rendering without changing a line of code.<o:p></o:p></p>
<p><a href="https://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_pal1000_mesa-2Ddist-2Dwin&d=DwMGaQ&c=hmGTLOph1qd_VnCqj81HzEWkDaxmYdIWRBdoFggzhj8&r=QPUyrnKdkaGJHD0OTha3x09u1N6qkcvUsRW8n2fg59E&m=kZ2WZR9tK_shl3xOoI8FNj6ZXUJDDcrHVpsePRgM3HA&s=eSdnb7s0dw5HYYQWEqc3lxhseyaAWlyWrThJEw1AAB0&e=">https://github.com/pal1000/mesa-dist-win</a>
was really helpful here and just did a system wide deployment for my test VM.<o:p></o:p></p>
<p>This enables us to at least deploy this on our automated test environment and get things going there.<o:p></o:p></p>
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<p>I’m using VTK 8.1.0 atm, but will look at the helper when I upgrade things and try and do this better.<o:p></o:p></p>
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<p>Thanks David!<o:p></o:p></p>
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<p>Regards,<o:p></o:p></p>
<p> <o:p></o:p></p>
<p>Jesse<o:p></o:p></p>
<p>--<o:p></o:p></p>
<p>Jesse Kinross-Smith<o:p></o:p></p>
<p>Senior Software Engineer - BSW<o:p></o:p></p>
<p>Bentley Systems, Fremantle<o:p></o:p></p>
<p> <o:p></o:p></p>
<p><b>From:</b> David E DeMarle [<a href="mailto:dave.demarle@kitware.com">mailto:dave.demarle@kitware.com</a>]
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<b>Sent:</b> Wednesday, 23 May 2018 4:42 AM<br>
<b>To:</b> Todd Martin <<a href="mailto:nztoddler@yahoo.com">nztoddler@yahoo.com</a>><br>
<b>Cc:</b> vtk <<a href="mailto:vtkusers@vtk.org">vtkusers@vtk.org</a>>; Jesse Kinross-Smith <<a href="mailto:Jesse.Kinross-Smith@bentley.com">Jesse.Kinross-Smith@bentley.com</a>><br>
<b>Subject:</b> Re: [vtkusers] Failed to get wglChoosePixelFormatARB on VM<o:p></o:p></p>
<p> <o:p></o:p></p>
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<p>In VTK 8.1.1 on windows, there is a helper that:<o:p></o:p></p>
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<p> <o:p></o:p></p>
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<p>1) makes a system call intended to test openGL compatibility<o:p></o:p></p>
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<p>2) lets you swap in mesa if required.<o:p></o:p></p>
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<p> <o:p></o:p></p>
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<p>See Rendering/OpenGL/vtkTestOpenGLVersion.h and <a href="https://urldefense.proofpoint.com/v2/url?u=https-3A__gitlab.kitware.com_vtk_vtk_commit_2d10325efedca53a6262550db94484ccc8a12e49&d=DwMFaQ&c=hmGTLOph1qd_VnCqj81HzEWkDaxmYdIWRBdoFggzhj8&r=QPUyrnKdkaGJHD0OTha3x09u1N6qkcvUsRW8n2fg59E&m=LAWtQyKjaVtb40DNHOGshfhWRtzOCjVvBx7_bOhQ6LQ&s=YWTvq_SH7QU1PkypBIcAWBUyd-hVC_H0DAxlQf3_c6A&e="><span style="font-size:9.5pt;font-family:"Arial",sans-serif;color:#1155CC;background:white">https://gitlab.kitware.com/vtk/vtk/commit/2d10325efedca53a6262550db94484ccc8a12e49</span></a><o:p></o:p></p>
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<p> <o:p></o:p></p>
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<p>David E DeMarle<o:p></o:p></p>
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<p>Kitware, Inc.<br>
Principal Engineer<br>
21 Corporate Drive<br>
Clifton Park, NY 12065-8662<br>
Phone: 518-881-4909<o:p></o:p></p>
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<p>On Tue, May 22, 2018 at 3:47 AM, Todd Martin via vtkusers <<a href="mailto:vtkusers@vtk.org">vtkusers@vtk.org</a>> wrote:<o:p></o:p></p>
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<p style="margin-bottom:12.0pt"><span style="font-size:12.0pt;font-family:"Helvetica",sans-serif">Failing that you could try using Virtualbox.</span><o:p></o:p></p>
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<p><span style="font-size:12.0pt;font-family:"Helvetica",sans-serif"> </span><o:p></o:p></p>
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<p><span style="font-size:12.0pt;font-family:"Helvetica",sans-serif">Todd Martin, Ph.D.</span><o:p></o:p></p>
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<p><span style="font-size:12.0pt;font-family:"Helvetica",sans-serif">Freelance Engineer/Software Architect.</span><o:p></o:p></p>
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<p><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A">On Tuesday, May 22, 2018, 6:56:58 PM GMT+12, Jesse Kinross-Smith <<a href="mailto:Jesse.Kinross-Smith@bentley.com">Jesse.Kinross-Smith@bentley.com</a>> wrote:
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<p><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A">So it looks like Microsoft’s VM’s only support OpenGL 1.1, and of course our library is built using OpenGL2.</span><o:p></o:p></p>
<p><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A">Somehow I thought there’d be a fallback option in case it wasn’t supported, but this doesn’t seem to be the case.</span><o:p></o:p></p>
<p><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"> </span><o:p></o:p></p>
<p><span style="font-size:10.0pt;font-family:"Segoe UI Emoji",sans-serif;color:#26282A">☹</span><o:p></o:p></p>
<p><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A">Jesse</span><o:p></o:p></p>
<p><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A">--</span><o:p></o:p></p>
<p><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A">Jesse Kinross-Smith</span><o:p></o:p></p>
<p><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A">Senior Software Engineer - BSW</span><o:p></o:p></p>
<p><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A">Bentley Systems, Fremantle</span><o:p></o:p></p>
<p><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"> </span><o:p></o:p></p>
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<p><b><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A">From:</span></b><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"> Todd Martin [mailto:<a href="mailto:nztoddler@yahoo.com">nztoddler@yahoo.com</a>]
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<b>Sent:</b> Tuesday, 22 May 2018 1:56 PM<br>
<b>To:</b> vtk <<a href="mailto:vtkusers@vtk.org">vtkusers@vtk.org</a>>; Jesse Kinross-Smith <<a href="mailto:Jesse.Kinross-Smith@bentley.com">Jesse.Kinross-Smith@bentley.com</a>><br>
<b>Subject:</b> Re: [vtkusers] Failed to get wglChoosePixelFormatARB on VM</span><o:p></o:p></p>
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<p><span style="font-size:12.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><br>
Did you install GLEW on the virtual machine?</span><o:p></o:p></p>
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<p><span style="font-size:12.0pt;font-family:"Helvetica",sans-serif;color:#26282A">Todd Martin, Ph.D.</span><o:p></o:p></p>
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<p><span style="font-size:12.0pt;font-family:"Helvetica",sans-serif;color:#26282A">Freelance Engineer/Software Architect.</span><o:p></o:p></p>
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<p><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A">On Tuesday, May 22, 2018, 5:33:53 PM GMT+12, Jesse Kinross-Smith <<a href="mailto:Jesse.Kinross-Smith@bentley.com">Jesse.Kinross-Smith@bentley.com</a>> wrote:
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<p><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A">Getting the following errors when testing our app with VTK rendering on a Hyper-V virtual machine (works great on my laptop though):</span><o:p></o:p></p>
<p><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"> </span><o:p></o:p></p>
<p><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A">ERROR: In C:\hg\sharedlibs\VTK-8.1.0\Rendering\OpenGL2\vtkWin32OpenGLRenderWindow.cxx, line 685</span><o:p></o:p></p>
<p><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A">vtkWin32OpenGLRenderWindow (000001D110ADE9F0): failed to get wglChoosePixelFormatARB</span><o:p></o:p></p>
<p><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A">ERROR: In C:\hg\sharedlibs\VTK-8.1.0\Rendering\OpenGL2\vtkWin32OpenGLRenderWindow.cxx, line 769</span><o:p></o:p></p>
<p><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A">vtkWin32OpenGLRenderWindow (000001D110ADE9F0): failed to get valid pixel format.</span><o:p></o:p></p>
<p><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A">ERROR: In C:\hg\sharedlibs\VTK-8.1.0\Rendering\OpenGL2\vtkOpenGLRenderWindow.cxx, line 785</span><o:p></o:p></p>
<p><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A">vtkWin32OpenGLRenderWindow (000001D110ADE9F0): GLEW could not be initialized.</span><o:p></o:p></p>
<p><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"> </span><o:p></o:p></p>
<p><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A">We’re using the vtkMFCWindow class and I don’t see any fallback options anywhere.</span><o:p></o:p></p>
<p><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A">Is there any way this can default to software rendering on low end machines like this?</span><o:p></o:p></p>
<p><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"> </span><o:p></o:p></p>
<p><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A">Jesse</span><o:p></o:p></p>
<p><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A">--</span><o:p></o:p></p>
<p><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A">Jesse Kinross-Smith</span><o:p></o:p></p>
<p><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A">Senior Software Engineer - BSW</span><o:p></o:p></p>
<p><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A">Bentley Systems, Fremantle</span><o:p></o:p></p>
<p><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"> </span><o:p></o:p></p>
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