Just for some clarification are you trying to make a camera that follows your
car model? Because I had the similar issue recently and through my research I
found I could attach a camera manipulator to a node and the camera will be
translated relative to the position of the PositionAttitudeTransform.
*Note I needed to attach the manipulator to a child of the
PositionAttitudeTransform. In your case it would be the Node that you loaded
the model file.
Code:
osg::ref_ptr<osgGA::NodeTrackerManipulator> manipulator = new
osgGA::NodeTrackerManipulator;
manipulator->setTrackerMode(osgGA::NodeTrackerManipulator::NODE_CENTER);
manipulator->setRotationMode(osgGA::NodeTrackerManipulator::TRACKBALL);
osg::ref_ptr<osg::PositionAttitudeTransform> vehicleRoot =
dynamic_cast<osg::PositionAttitudeTransform *>(node);
if(vehicleRoot.valid())
{
manipulator->setTrackNode(vehicleRoot.getTrackerNode());
}
Hopefully this helps with your what your trying to accomplish
Scott[/code]
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