Re: [osg-users] [osg_users] problem with lights.
Hi Robert, thank you so much for your quick response. You're right about the little information. Sorry, I didn't mean to write a superlong email. Here we go: We use OSG 2.9.8 under windows and mingw compiler under Qt creator IDE. I load different IVE files that come from 3DS and move them after we do some mechanical calculations. Offline, we simulate a mechanical system and afterwards, with the positions, orientations etc of the solids animate de scene. This last thing is done obviously with the help of OSG. The only GL objects that I use, to my understanding, are GL_NORMALIZE because we scale the ives, so this assures that the normals remain unitary, GL_LIGHTING ON, GL_LIGHT0,GL_LIGHT1, GL_MULTISAMPLE_ARB on the loaded ives to soften pixelation on the edges. Sorry for this but I don't understand what you mean by: about creating your context and destroying them I guess you mean how do I create the scene? I do the typical: osg::ref_ptrosg::Groupscene=NULL; scene = createScene( numPlantas, distPlantas, ancho, fondo, alto,distUltimaPlanta,distMotorTecho,r_roz_drch_inf,AzR,r_polea_drch,AxP, arrowlist ); and scene=NULL; just before the return to free the whole scene. I use extensively osg::ref_ptrto be sure that OSG handdles my pointers when destroyed. The structure of the scene is a group with hanging nodes. A root. Hanging from the root we have the osgShadow::ShadowedScene and the rest of the stuff is hanging from this last one, the shadowed, even the two light sources. Actually the lightsource hangs from a postion transform that hangs from the shadowedscene. What else. I have osg::ref_ptrosgShadow::ShadowMapsm=newosgShadow::ShadowMap; to which I assign a light: sm-setLight(lightSource[0]-getLight()); I don't find any other relevant info in my code related to GL. Should I upload some code for you guys to see? Thanks again Regards Juan El 09/03/2011 13:58, Robert Osfield escribió: Hi Juan, The issue that bites users creating multiple successive graphics windows is that GL objects handles that the scene graph holds aren't cleared properly when a new context is created. You don't say anything how you've gone about creating your context and destroying them, and the relationship with what you do with the scne graph, or even the OSG version that you use. All we know is that you Qt and OSG in some way, and have a problem. Given I know so little about your specific setup I can do no more than general guess like the above. Could you provide a bit more of the above info. Robert. 2011/3/9 Juan S. Valverde Garcíaj.valve...@virtualmech.com: Hi all, I'm building a scene with different parts coming from 3DS files transformed to IVE (self lighting off). I manage and build my scene, motion etc, from osg code. I coded lighting and shadows using osg::shadowmap. (used softshadow map too). I use GL_Lighting with two lights, GL_Light0 and 1. I call the viewer from another application based on Qt but not embedded or any complicated way, just open a viewer. Fist time it opens it works just fine. The problem comes when I close the viewer and run it again. From the second time and on, third, fourth etc, my scene seems to be blurred, too much light. I attach two captures, the second blurred. Thanks a lot for any help. I'm quite desperate now. I'm not an expert on visualization and this problem seems to me like a black box. Regards Juan ___ 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 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] problem with osgshadow compilation in osgshadow example
Hi Robert, Thanks for your quick response. I really appreciatte that. So it happen that I fixed the problem just adding the following include: #includeOpenThreads/Mutex How does this sound to you? Does it make sense? Regards Juan El 04/11/2010 10:15, Robert Osfield escribió: Hi Juan, Using mingw with the OSG is not often done so you'll best testing something that few others do so if you spot problems then you'll need to pitch in to help resolve. As a general note, this error with linking against OpenThreads points to a an issue with how the OSG/OpenThreads was built and what the example is linking against. Normally the OSG is able to keep this all consistent, but if you build the OpenThreads with one configuration, change the configuration and build your application against that new configuration but link against the OpenThreads with the old configuration you might see problems. The include/OpenThreads/Config file is autogenerated and should be consistent. Robert. 2010/11/3 Juan S. Valverde Garcíaj.valve...@virtualmech.com: Hi, Thank you very much in advance for any help! So I'm trying to cast some shadows on my OSG virtual world. I started looking for the osgshadow example and manual to have a clue about this. When I try to compile the example, using mingww gcc 4.4.0, i get the followeing error: debug/osgshadow.o: In function `ViewData': C:\devtools\projects\OSG\pruebas ascensor\shadow/../../../../library/OpenSceneGraph-2.9.8/include/osgShadow/ViewDependentShadowTechnique:176: undefined reference to `_imp___ZN11OpenThreads5MutexC1ENS0_9MutexTypeE' C:\devtools\projects\OSG\pruebas ascensor\shadow/../../../../library/OpenSceneGraph-2.9.8/include/osgShadow/ViewDependentShadowTechnique:176: undefined reference to `_imp___ZN11OpenThreads5MutexD1Ev' debug/osgshadow.o: In function `~ViewData': C:\devtools\projects\OSG\pruebas ascensor\shadow/../../../../library/OpenSceneGraph-2.9.8/include/osgShadow/ViewDependentShadowTechnique:152: undefined reference to `_imp___ZN11OpenThreads5MutexD1Ev' C:\devtools\projects\OSG\pruebas ascensor\shadow/../../../../library/OpenSceneGraph-2.9.8/include/osgShadow/ViewDependentShadowTechnique:152: undefined reference to `_imp___ZN11OpenThreads5MutexD1Ev' collect2: ld returned 1 exit status Of course, first thing I tried was understanding the problem. No way. Second googled it. No trace of it in the www. So I came to the forum. Any clue about it? Again, any help would be much appreciated. My world is sad without a shadow! Best regards Juan ___ 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 -- Juan S. Valverde García Director Ejecución de Proyectos virtualmech Parque Científico y Tecnológico Cartuja'93 c/ Leonardo da Vinci 18 Planta 4ª, Módulo A.2 41092 Sevilla web: www.virtualmech.com email: j.valve...@virtualmech.com ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] problem with osgshadow compilation in osgshadow example
Hi, Thank you very much in advance for any help! So I'm trying to cast some shadows on my OSG virtual world. I started looking for the osgshadow example and manual to have a clue about this. When I try to compile the example, using mingww gcc 4.4.0, i get the followeing error: debug/osgshadow.o: In function `ViewData': C:\devtools\projects\OSG\pruebas ascensor\shadow/../../../../library/OpenSceneGraph-2.9.8/include/osgShadow/ViewDependentShadowTechnique:176: undefined reference to `_imp___ZN11OpenThreads5MutexC1ENS0_9MutexTypeE' C:\devtools\projects\OSG\pruebas ascensor\shadow/../../../../library/OpenSceneGraph-2.9.8/include/osgShadow/ViewDependentShadowTechnique:176: undefined reference to `_imp___ZN11OpenThreads5MutexD1Ev' debug/osgshadow.o: In function `~ViewData': C:\devtools\projects\OSG\pruebas ascensor\shadow/../../../../library/OpenSceneGraph-2.9.8/include/osgShadow/ViewDependentShadowTechnique:152: undefined reference to `_imp___ZN11OpenThreads5MutexD1Ev' C:\devtools\projects\OSG\pruebas ascensor\shadow/../../../../library/OpenSceneGraph-2.9.8/include/osgShadow/ViewDependentShadowTechnique:152: undefined reference to `_imp___ZN11OpenThreads5MutexD1Ev' collect2: ld returned 1 exit status Of course, first thing I tried was understanding the problem. No way. Second googled it. No trace of it in the www. So I came to the forum. Any clue about it? Again, any help would be much appreciated. My world is sad without a shadow! Best regards Juan ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
