I've been playing with the osgFX classes and I'm thinking about using osgFX::Outline() to highlight the node(s) under the mouse.
First, I would need a list of highlighted nodes. Initially it would be empty. Every highlightable node would have a parent osgFX::Outline instance with an initial thin black outline. I would handle osgGA::GUIEventAdapter::MOVE events. Using the osgUtil::LineSegmentIntersector to find what's under the mouse pointer. I would compare my list of nodes under the mouse pointer with my list of highlighted nodes. Any nodes on the highlighted list not under the mouse, would be reverted to a thin black outline. Any nodes under the mouse would get a thicker, yellow outline. The list of highlighted nodes would be updated to reflect the current state. Is this reasonable? Is having an osgFX::Outline instance on every node a heavy way of accomplishing this? Is hit-testing every move event crazy? Alternatively, I thought about just lightening the face color of every node under the mouse. This wouldn't require any osgFX::Outline() nodes. Thanks, Cory _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
