Vincent Bourdier wrote on Thursday, August 07, 2008 9:56 AM: > Hi, > > I just need to move a light, and for that I try to use a callback. > So I implement a simple class lightMoveCallback : public > osg::StateAttribute::Callback > > with virtual void operator()(osg::StateAttribute* ss, osg::NodeVisitor* nv); > > but the callback is never called... > > I use : > light->setUpdateCallback(new lightMoveCallback())
Not sure what you're doing with your callback, but in OSG, lights are positioned using a LightSource node, so perhaps your callback changes are being overridden by that? The LightSource node is placed in the scenegraph where you want the light to be, usually under a Transform. Typically, to move the light, you can just add a UpdateCallback to the Transform to do what you want. I don't know why your callback isn't called, though. HTH, -- Bryan Thrall FlightSafety International [EMAIL PROTECTED] _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
