How are you making it invisible? If you're just using alpha blending with 0 alpha, the normal osgUtil intersection classes should still be able to pick it. -Paul
_____ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of alessandro terenzi Sent: Saturday, October 13, 2007 1:39 AM To: osg-users Subject: [osg-users] picking/selecting invisible objects Hi, I'd like to ask some hint on how to be able to pick/select invisible 3D objects. In my scene, I need to have a totally transparent object and, when the mouse moves on it, it should reveal its presence, for example displaying a halo or something like this. How can I pick such an invisible object? Thank you. Best regards. Alessandro
_______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
