Re: [osg-users] vrml plugin problems
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Ben Axelrod wrote: | I am trying to load a VRML file, but I get the error message: | | Warning: Could not find plugin to read objects from file foo.wrl. | | I tried this in OSG code, as well as with osgconv and osgviewer. I | have the OSG lib and osgPlugins directories in my LD_LIBRARY_PATH. | | I compiled OSG 2.6.0 from src on Debian Etch. I am using OpenVRML | version 0.14.3. Do I need a newer version of OpenVRML? Nope. Newer versions use Boost and different API - the plugin will not compile. | I had VRML files working with OSG 2.4 a long time ago. Back then I | also set up the Inventor library during the install. But I forgot | what that library does, why it's needed, and even where to get it. | Do I need it here too? No, if you have the VRML plugin, you do not need the Inventor, unless you want to load also the Inventor (.iv) files. I suspect that if your plugin is compiled correctly but doesn't load, most likely either the OpenVRML library or some of its dependencies cannot be loaded at runtime (make sure it is either in one of the standard lib directories or in the LD_LIBRARY_PATH) Set export OSG_NOTIFY_LEVEL=DEBUG and try to run the viewer. Then look for any unresolved symbols while it is trying to load the VRML file. Most likely the dynamic linker cannot find something. Regards, Jan -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.9 (GNU/Linux) Comment: Using GnuPG with Mandriva - http://enigmail.mozdev.org iD8DBQFI0iIJn11XseNj94gRApcAAKDS9aYrLCpVpFNFgRj9OlIe7r5DYQCgu510 NWD2xMubySXsDj1+07U/Jm0= =BEMl -END PGP SIGNATURE- ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] vrml plugin problems
Hi Ben, I am trying to load a VRML file, but I get the error message: Warning: Could not find plugin to read objects from file “foo.wrl”. [...] I compiled OSG 2.6.0 from src on Debian Etch. I am using OpenVRML version 0.14.3. Do I need a newer version of OpenVRML? (I set the path to the OpenVRML includes as well as libopenvrml.so during the CMake configuration). Did you verify that the osgdb_wrl.so plugin was compiled and can be found? You can enable verbose debugging messages by setting OSG_NOTIFY_LEVEL=DEBUG before running osgviewer, and that might show if something is wrong there. It will print out where it looks for the plugin, whether it finds it, and whether it loads it correctly or not. If the plugin is there, is loaded (as printed in the debug messages) but it still says that it can't find a plugin, it might mean that the plugin depends on some other dynamic library which isn't being found at runtime. This might depend on where OpenVRML is installed and whether your LD_LIBRARY_PATH includes the right directory to find its dynamic libraries (if any) - note I'm on Windows most of the time so I can't really help more than that. I had VRML files working with OSG 2.4 a long time ago. Back then I also set up the Inventor library during the install. But I forgot what that library does, why it’s needed, and even where to get it. Do I need it here too? The Inventor plugin can also read VRML files, so if OSG was using that one to read your VRML files before, it might mean that the OpenVRML plugin never worked for you but you never knew it... :-) Hope this helps, J-S -- __ Jean-Sebastien Guay[EMAIL PROTECTED] http://www.cm-labs.com/ http://whitestar02.webhop.org/ ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] vrml plugin problems
Thank you for the tip. That environment variable flag helped me see that OSG found the osgdb_vrml.so plugin, but then failed when loading the openvrml.so library. I added that dir to my LD_LIBRARY_PATH and all is well! (I don't seem to have the osgdb_wrl.so plugin by the way, but it does not look like I need it). Thanks, -Ben -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jean-Sébastien Guay Sent: Wednesday, September 17, 2008 4:34 PM To: OpenSceneGraph Users Subject: Re: [osg-users] vrml plugin problems Hi Ben, I am trying to load a VRML file, but I get the error message: Warning: Could not find plugin to read objects from file foo.wrl. [...] I compiled OSG 2.6.0 from src on Debian Etch. I am using OpenVRML version 0.14.3. Do I need a newer version of OpenVRML? (I set the path to the OpenVRML includes as well as libopenvrml.so during the CMake configuration). Did you verify that the osgdb_wrl.so plugin was compiled and can be found? You can enable verbose debugging messages by setting OSG_NOTIFY_LEVEL=DEBUG before running osgviewer, and that might show if something is wrong there. It will print out where it looks for the plugin, whether it finds it, and whether it loads it correctly or not. If the plugin is there, is loaded (as printed in the debug messages) but it still says that it can't find a plugin, it might mean that the plugin depends on some other dynamic library which isn't being found at runtime. This might depend on where OpenVRML is installed and whether your LD_LIBRARY_PATH includes the right directory to find its dynamic libraries (if any) - note I'm on Windows most of the time so I can't really help more than that. I had VRML files working with OSG 2.4 a long time ago. Back then I also set up the Inventor library during the install. But I forgot what that library does, why it's needed, and even where to get it. Do I need it here too? The Inventor plugin can also read VRML files, so if OSG was using that one to read your VRML files before, it might mean that the OpenVRML plugin never worked for you but you never knew it... :-) Hope this helps, J-S -- __ Jean-Sebastien Guay[EMAIL PROTECTED] http://www.cm-labs.com/ http://whitestar02.webhop.org/ ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] vrml plugin problems
Hi Ben, Thank you for the tip. That environment variable flag helped me see that OSG found the osgdb_vrml.so plugin, but then failed when loading the openvrml.so library. I added that dir to my LD_LIBRARY_PATH and all is well! (I don't seem to have the osgdb_wrl.so plugin by the way, but it does not look like I need it). Oh, sorry, I thought the plugin's name was osgdb_wrl.so since it loaded .wrl files. Just a mistake on my part. Good to know things are working for you! J-S -- __ Jean-Sebastien Guay[EMAIL PROTECTED] http://www.cm-labs.com/ http://whitestar02.webhop.org/ ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
