HI Nick, Try getting the camera manipulator to recompute its home position when you change the scene via:
viewer.getCameraManipulator()->computeHomePosition(); Or just set it manuual via: viewer.getCameraManipulator()->setHomePosition(...); On 8/28/07, Nick Prudent <[EMAIL PROTECTED]> wrote: > > OK, > > I've tried redefining the manipulator directly and I tried with the main > camera. Both methods fail to actually update the trackball's center & radius. > > Ex: > > m_rpMainCamera->setViewMatrixAsLookAt( vnew_eye, vnew_center, vnew_up ); > > or... > > m_rpTerrainManipulator->setHomePosition( vnew_eye,v new_center, vnew_up ); > > What's the recommended way to do this? > > Thanks, > > - Nick - > > > > > How can I make sure an object fits inside a camera view after loading a new > > scene. All the examples load scenes and Viewer/Camera at startup. I want to > > add nodes to an existing scene; not create a new one. > > My OSG tree looks like this: > > + File 1 > > | > > + Scene ----+ File 2 > > | | > > | + File ... > > Root ----+ > > | > > + Grid > > | > > + Axis > > | > > + HUD Camera > > (Both Root and Scene are Switch groups, so I can selectively show/hide > > their children) > > The problem is that whenever I load a new file/node, it doesn't always show > > up on screen. My guess is that some objects are outside the view volume. I > > could write a simple function to update Scene's bounds and make sure they > > fall within the fustrum, but I'm sure there's an existing method to do > > this... > > - Nick - > > _________________________________________________________________ > Connect to the next generation of MSN Messenger > http://imagine-msn.com/messenger/launch80/default.aspx?locale=en-us&source=wlmailtagline > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
