<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Hello Felipe,<div class=""><br class=""></div><div class="">I have compiled VTK 8.1.1 with python2 and Qt4 and the problem persists. </div><div class="">No idea of what else can be done.</div><div class=""><br class=""></div><div class="">Is anyone else interested in getting this fixed? </div><div class="">I can imagine that using VTK through VirtualGL to access large data sets stored in computing clusters is not a rare task...</div><div class=""><br class=""></div><div class="">Greetings,</div><div class="">Alberto</div><div class=""><br class=""></div><div class=""><br class=""><div><br class=""><blockquote type="cite" class=""><div class="">On 15. Jun 2018, at 10:58, Felipe Bordeu <<a href="mailto:felipebordeu@gmail.com" class="">felipebordeu@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div dir="auto" class=""><div class="">Hi everyone,<div dir="auto" class=""><br class=""></div><div dir="auto" class="">I can confirm this problem. I have a python 2.7 + qt4 + vtk working app on a remote server with vnc for the visualisation. But with python 3 + qt4 + vtk the same error message appears. If I test the vtk installation alone (not in a embedded qt window) I can create a visualisation in a window.</div><div dir="auto" class=""><br class=""></div><div dir="auto" class=""><br class=""></div><br class=""><br class=""><div class="gmail_quote"><div dir="ltr" class="">Le jeu. 14 juin 2018 à 10:00, amdelaossa <<a href="mailto:adelaossa@gmail.com" class="">adelaossa@gmail.com</a>> a écrit :<br class=""></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word;line-break:after-white-space" class="">Dear VTK developers,<br class=""><div class=""><div class=""><div style="word-wrap:break-word;line-break:after-white-space" class=""><br class="">We have an issue with our 3D visualization software which uses VTK, through Python bindings.<br class="">Although VTK has been working with no problems with VirtualGL, <br class="">recently we have implemented a GUI for our visualization routines. <br class="">The problem appeared when we tried to use this GUI remotely through VirtualGL.<br class=""><br class="">We get the following error message:<br class=""><br class="">`<br class="">[VGL] NOTICE: Automatically setting VGL_CLIENT environment variable to<br class="">[VGL] 131.169.206.101, the IP address of your SSH client.<br class="">ERROR: In /data/netapp/fla/plasma/software-max/source/VTK-git/Rendering/OpenGL2/vtkOpenGLRenderWindow.cxx, line 725<br class="">vtkXOpenGLRenderWindow (0x2ef7b00): GLEW could not be initialized.<br class=""><br class="">Segmentation fault<br class="">`<br class=""><br class="">The problem also appear with a much more simple program that we took from the VTK examples:<br class=""></div></div></div></div><div style="word-wrap:break-word;line-break:after-white-space" class=""><div class=""><div class=""><div style="word-wrap:break-word;line-break:after-white-space" class=""><br class=""><br class="">This python script runs smoothly in a local computer, but it fails when using vglrun (VirtualGL). <br class=""><br class="">This is a critical issue for us: <br class="">Our simulation data is stored in remote clusters for parallel computing, and therefore, <div class="">it is a must to use VirtualGL to visualize the data with VTK without needing to transfer large amounts of data to our personal computers.<br class=""><br class="">Any help or information is much appreciated.<br class="">Thanks!</div><div class=""><br class=""></div><div class="">Best regards,</div><div class="">Alberto<br class=""><div class="">
<div dir="auto" style="letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;word-wrap:break-word;line-break:after-white-space" class=""><div dir="auto" style="letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;word-wrap:break-word;line-break:after-white-space" class=""><div style="font-family:Helvetica;font-size:14px;font-style:normal;font-variant-caps:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;word-wrap:break-word;line-break:after-white-space" class=""><font face="CMU Typewriter Text" class=""><br class="m_-7514968479434532469Apple-interchange-newline">Alberto Martinez de la Ossa</font><br class=""><span style="font-size:12px" class=""><font face="CMUTypewriter-Light" class="">Postdoc Uni. Hamburg - DESY-FLA</font><br class=""><font face="CMUTypewriter-Light" class=""> </font><br class=""><font face="CMUTypewriter-Light" class="">Deutsches Elektronen-Synchrotron DESY</font><br class=""><font face="CMUTypewriter-Light" class="">Notkestraße 85,</font> <font face="CMUTypewriter-Light" class="">22607 Hamburg</font><br class=""><font face="CMUTypewriter-Light" class="">Office: 01E/O2.514</font><br class=""><font face="CMUTypewriter-Light" class="">Phone: +49 40 8998 1569</font><br class=""><font face="CMUTypewriter-Light" class="">Email: <a href="mailto:delaossa@mail.desy.de" target="_blank" rel="noreferrer" class="">alberto.martinez.de.la.ossa@desy.de</a></font></span></div><div style="font-family:Helvetica;font-size:14px;font-style:normal;font-variant-caps:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;word-wrap:break-word;line-break:after-white-space" class=""><span style="font-size:12px" class=""><font face="CMUTypewriter-Light" class=""><br class=""></font></span></div><div style="font-family:Helvetica;font-size:14px;font-style:normal;font-variant-caps:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;word-wrap:break-word;line-break:after-white-space" class=""><br class=""></div></div></div></div><br class=""></div></div></div></div><br class=""></div>_______________________________________________<br class="">
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