Hello, I've implemented a RTT example with osg and I my scene object is the cessna.osg. Without the RTT-Implementation I have around 4500 fps. But with the RTT I have only 380 fps. My Texture is 512 x 512. What is the Problem?
I have got a GeForce 470 and a intel processor i7 820. I guess the hardware is ok. My Implementation is: osg::Vec3 eye(40,-40,40); osg::Vec3 point(0,0,0); c->addChild(in); c->setReferenceFrame(osg::Transform::ABSOLUTE_RF); c->setProjectionMatrixAsPerspective(30.0,1.0,0.1,100.0); c->setViewMatrixAsLookAt(eye,point,osg::Vec3(0,0,1)); c->setClearColor(osg::Vec4(0.4,0.0,0.0,0.0)); c->setViewport(0,0,512,512); c->setClearMask( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT ); c->setRenderOrder(osg::Camera::PRE_RENDER, 0); c->setRenderTargetImplementation( osg::Camera::FRAME_BUFFER_OBJECT ); c->attach(osg::Camera::COLOR_BUFFER, img, 0, 0); Is my implementation the problem? In OpenGL I can use glCopyTexImage2D(...). There are a Wrapper in OSG for this functionality? Cheers, Martin -- Neu: GMX De-Mail - Einfach wie E-Mail, sicher wie ein Brief! Jetzt De-Mail-Adresse reservieren: http://portal.gmx.net/de/go/demail _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
