Hi, I'm working on an application where the initial scene is scene is very large. However, as the user adds smaller objects to the scene I want the camera to be able to follow the objects. I'd like to be able to center the manipulator on an object and follow the object along a path.
I'm trying to use the orbitalManipulator's setTransformation function to do this by calculating an eye vector (based on a North East Down offset from the center and rotation back to X,Y,Z), a center (the object's position), and an up vector (the unit vector of the object's position). I can run the model and printout what appear to be valid vectors for the eye, center, and up, but the camera appears to be looking at my object from the wrong direction. Does my approach seem logical, and is there some obvious coordinate conversion that I'm not doing to go between global (x,y,z -model coordinates) to viewing (cameraManipulator) coordinates? ViewerQT* canvas; canvas->getCameraManipulator()->setTransformation(eye, center, up); Thank you! Cheers, Brian ------------------ Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=34638#34638 _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
