Hi,
I'm trying to setup some cameras without a manipulator. When I assign a
Trackballmanipulator on the vies, I get the cow projected on the screen. But as
soon as I manually setup the cameras, I get a completely black screen.
I extract eye, center and up from Tman (Trackballmanipulator) by
Tman->getMatrix().lookat(eye, center, up).
This gives some nice coordinates, but when I put these in a camera without a
manipulator like Tman, I just get a black screen. What am I doing wrong here?
Code:
int main( int argc, char **argv )
{
// use an ArgumentParser object to manage the program arguments.
osg::ArgumentParser arguments(&argc,argv);
osg::Group* scene = new osg::Group();
osg::Node* groundNode = NULL;
groundNode = osgDB::readNodeFile("cow.osg");
scene->addChild(groundNode);
osgViewer::CompositeViewer viewer(arguments);
if (arguments.read("-2"))
{
// view one
{
osg::Vec3d eye = osg::Vec3d(0,0,250);
osg::Vec3d center = osg::Vec3d(0,0,250);
osg::Vec3d up = osg::Vec3d(0,0,-1);
osg::Quat rotation;
osg::Matrixd viewmat;
osg::Camera* camera = new osg::Camera;
osgViewer::View* view = new osgViewer::View;
view->setName("View one");
viewer.addView(view);
//camera->setProjectionMatrix( osg::Matrix::ortho2D(0,512,0,512) ); //not
doing anything
//camera->setReferenceFrame( osg::Transform::ABSOLUTE_RF );
//camera->setViewMatrix( osg::Matrix::identity() );
view->setCameraManipulator(Tman);
//Tman->setAutoComputeHomePosition(false);
view->setUpViewOnSingleScreen(0);
view->setSceneData(scene);
//view->setCamera(camera);
}
// view two
{
osg::Matrixd viewmat;
osg::Camera* camera = new osg::Camera;
osgViewer::View* view = new osgViewer::View;
view->setName("View two");
viewer.addView(view);
view->setUpViewOnSingleScreen(1);
view->setSceneData(scene);
//view->setCamera(camera);
view->setCameraManipulator(Tman);
view->setName("right");
osg::Vec3d eye = osg::Vec3d(0,0,25);
osg::Vec3d center = osg::Vec3d(0,0,25);
osg::Vec3d up = osg::Vec3d(0,0,-1);
}
}
viewer.realize();
while(!viewer.done())
{
osg::Vec3d eye = osg::Vec3d(0,0,50);
osg::Vec3d center = osg::Vec3d(0,0,50);
osg::Vec3d up = osg::Vec3d(0,0,-1);
Tman->setHomePosition(eye,center,up); //not working. Doesn't
matter how I set eye, center etc.
viewer.frame();
}
}
------------------
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=34890#34890
_______________________________________________
osg-users mailing list
osg-users@lists.openscenegraph.org
http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
