OcclusionQueryNode::OcclusionQueryNode()
: _enabled( true ),
_visThreshold( 500 ),
_queryFrameCount( 5 ),
_debugBB( false )
{
// OQN has two Geode member variables, one for doing the
// query and one for rendering the debug geometry.
// Create and initialize them.
createSupportNodes();
}
OcclusionQueryNode::OcclusionQueryNode( const OcclusionQueryNode& oqn, const osg::CopyOp& copyop )
: Group( oqn, copyop ),
_passed( false )
{
_enabled = oqn._enabled;
_visThreshold = oqn._visThreshold;
_queryFrameCount = oqn._queryFrameCount;
_debugBB = oqn._debugBB;
// Regardless of shallow or deep, create unique support nodes.
createSupportNodes();
}