Re: [osg-users] Does OSG function over VNC?
Hi Harry, On Fri, Aug 27, 2010 at 8:08 PM, Harry Johnson harry_c_john...@yahoo.com wrote: Hi Robert, Yeah, I understand that the issue is with limited GLX support in the VNC server. However, seeing the glsl_simple.osg actually render, albeit with errors, makes me wonder if there isn't some switch to OSG that would result in it using a 'dumbed down' set of glx features with the understanding that performance/appearance will likely suffer. There will be two separate issues w.r.t OSG - GLX and OpenGL. You are reporting errors in both - GLX with bad requests and OpenGL with missing features (such GLSL). It might be that the GLX errors will be affecting which OpenGL driver is being selected. Unfortunately I'm not an X11 expert, let alone a VNC one so I can't really help with the specifics. I have used the OSG via VNC before it worked OK, but I didn't test it too thoroughly, and it was long ago I can't recall the details I'm afraid. Robert. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Does OSG function over VNC?
Hi, I am new to OSG so be gentle. Many of my users want to run their gui on a remote server through VNC, however, when I run the osgviewer cow.osg over vnc nothing gets rendered and I get lots of errors echoed to the terminal such as: Got an X11ErrorHandling call display=0x643b30 event=0x4084f7c0 GLXBadRenderRequest Major opcode: 148 Minor opcode: 1 Error code: 157 Request serial: 1620 Current serial: 1621 ResourceID: 44 Even the very simple example in the quick start guide fails to render. glxgears runs fine so I know I can get a glx context. Actually osgviewer glsl_simple.osg renders its shapes but gives the following errors: VERTEX glCompileShader FAILED FRAGMENT glCompileShader FAILED glLinkProgram FAILED FRAGMENT glCompileShader FAILED VERTEX glCompileShader FAILED glLinkProgram FAILED Is using OSG over VNC just a bad idea or is there some flag(s) I need to toggle to turn off some incompatible rendering feature? Thank you! Cheers, Harry -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=31085#31085 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Does OSG function over VNC?
Hi Harry, VNC/GLX support is likely the problem rather than a specific problem with OSG. You say that glxgears works fine, and that running osgviewer glsl_simple.osg reports errors but in the end renders shapes. To me this suggests that the OSG has been able to create a graphics context, but the GL driver being just used simply doesn't support all the extensions. Does osgviewer glider.osg work OK? Robert. On Thu, Aug 26, 2010 at 10:42 PM, Harry Johnson harry_c_john...@yahoo.com wrote: Hi, I am new to OSG so be gentle. Many of my users want to run their gui on a remote server through VNC, however, when I run the osgviewer cow.osg over vnc nothing gets rendered and I get lots of errors echoed to the terminal such as: Got an X11ErrorHandling call display=0x643b30 event=0x4084f7c0 GLXBadRenderRequest Major opcode: 148 Minor opcode: 1 Error code: 157 Request serial: 1620 Current serial: 1621 ResourceID: 44 Even the very simple example in the quick start guide fails to render. glxgears runs fine so I know I can get a glx context. Actually osgviewer glsl_simple.osg renders its shapes but gives the following errors: VERTEX glCompileShader FAILED FRAGMENT glCompileShader FAILED glLinkProgram FAILED FRAGMENT glCompileShader FAILED VERTEX glCompileShader FAILED glLinkProgram FAILED Is using OSG over VNC just a bad idea or is there some flag(s) I need to toggle to turn off some incompatible rendering feature? Thank you! Cheers, Harry -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=31085#31085 ___ 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] Does OSG function over VNC?
Hi Robert, Yeah, I understand that the issue is with limited GLX support in the VNC server. However, seeing the glsl_simple.osg actually render, albeit with errors, makes me wonder if there isn't some switch to OSG that would result in it using a 'dumbed down' set of glx features with the understanding that performance/appearance will likely suffer. osgviewer glider.osg does not work. :( It also results in the GLXBadRenderRequest messages. I tried to include the glxinfo output for the VNC server in this post but the forums tell me I have to have 2 posts before I can post a URL... I guess it thinks some of the glxinfo output is actually a URL of some sort. Thank you! Cheers, Harry -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=31112#31112 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Does OSG function over VNC?
Hi Harry, Have a look at TurboVNC: http://www.virtualgl.org/Downloads/TurboVNC http://www.virtualgl.org/Downloads/TurboVNCsean _ Sean Spicer Aqumin (www.aqumin.com) Office+1.713.781.2121 Mobile...+1.713.447.2706 Fax...+1.713.781.2123 On Fri, Aug 27, 2010 at 2:08 PM, Harry Johnson harry_c_john...@yahoo.comwrote: Hi Robert, Yeah, I understand that the issue is with limited GLX support in the VNC server. However, seeing the glsl_simple.osg actually render, albeit with errors, makes me wonder if there isn't some switch to OSG that would result in it using a 'dumbed down' set of glx features with the understanding that performance/appearance will likely suffer. osgviewer glider.osg does not work. :( It also results in the GLXBadRenderRequest messages. I tried to include the glxinfo output for the VNC server in this post but the forums tell me I have to have 2 posts before I can post a URL... I guess it thinks some of the glxinfo output is actually a URL of some sort. Thank you! Cheers, Harry -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=31112#31112 ___ 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] Does OSG function over VNC?
Hi Sean, I did try turboVNC but it did not even provide a glx context. I had not also installed virtualgl however which may have solved the problem. The issue is that I cannot require my users to all have installed virtualgl and turbovnc. I am coding to a fairly vanilla debian install. So I take it there are not any switches or settings to allow me to turn off the less supported glx calls? Thank you! Cheers, Harry -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=31119#31119 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
