Hi Nicolas, I'm using the svn version of OSG (revision 7946). When I add viewer->setThreadingModel( osgViewer::ViewerBase::SingleThreaded ); to the example code below, some more of the frames are rendered, but not all. Rudi
________________________________ Von: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Im Auftrag von nicolas peña Gesendet: Montag, 17. März 2008 21:24 An: OpenSceneGraph Users Betreff: Re: [osg-users] More than one viewer What version of OSG are you using? What threading model? I had similar issues and setting the threading model to one thread per context solved them. Cheers, Nicolas. 2008/3/17, Wiedemann, Rudolf, OPS3 <[EMAIL PROTECTED]>: Hi, I want to create a viewer, render some frames, then destroy the viewer and create a second one etc (see code below/ zip-file). The first viewer renders corectly, the second sometimes, too. But then I get only black images. Does someone has an idea what's going wrong? Thanks in advance! Rudi #include <iostream> #include <osg/Referenced> #include <osgDB/ReadFile> #include <osgDB/WriteFile> #include <osgViewer/Viewer> void render( unsigned int x, unsigned int y, unsigned int width, unsigned int height, double posx ) { osg::ref_ptr< osgViewer::Viewer > viewer = new osgViewer::Viewer; viewer->setUpViewInWindow( x, y, width, height ); viewer->setSceneData( osgDB::readNodeFile( "cow.osg" ) ); viewer->getCamera()->setViewMatrixAsLookAt( osg::Vec3d( posx, -15.0, 0.0 ), osg::Vec3d( 0.0, 0.0, 0.0 ), osg::Vec3d( 0.0, 0.0, 1.0 ) ); viewer->frame(); sleep( 1 ); viewer = 0; } int main( int argc, char * argv[] ) { double posx = 0.0; osg::ref_ptr< osgViewer::Viewer > viewer; for( unsigned int i = 0; i < 4; i++ ) { std::cout << "creating viewer #1" << std::endl; render( 10, 20, 500, 250, posx ); std::cout << "creating viewer #2" << std::endl; render( 600, 50, 112, 80, -posx ); posx += 5.0; } return 0; } _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
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