void CullVisitor::apply(osg::OcclusionQueryNode& node)
{
if (isCulled(node)) return;
// push the culling mode.
pushCurrentMask();
// push the node's state.
StateSet* node_state = node.getStateSet();
if (node_state) pushStateSet(node_state);
osg::Camera* camera = getCurrentCamera();
// If previous query indicates visible, then traverse as usual.
if (node.getPassed( camera, *this ))
handle_cull_callbacks_and_traverse(node);
// Traverse the query subtree if OcclusionQueryNode needs to issue another query.
node.traverseQuery( camera, *this );
// Traverse the debug bounding geometry, if enabled.
node.traverseDebug( *this );
// pop the node's state off the render graph stack.
if (node_state) popStateSet();
// pop the culling mode.
popCurrentMask();
}
void ScreenMVCullVisitor::apply(osg::OcclusionQueryNode& node)
{
bool status = _cullingStatus;
bool firstStatus = _firstCullStatus;
if(isCulled(node))
{
_firstCullStatus = firstStatus;
_cullingStatus = status;
return;
}
// push the culling mode.
pushCurrentMask();
// push the node's state.
StateSet* node_state = node.getStateSet();
if(node_state)
pushStateSet(node_state);
osg::Camera* camera = getCurrentCamera();
// If previous query indicates visible, then traverse as usual.
#if (OPENSCENEGRAPH_MAJOR_VERSION == 2) && (OPENSCENEGRAPH_MINOR_VERSION == 9) && (OPENSCENEGRAPH_PATCH_VERSION <= 7)
if (node.getPassed( camera, getDistanceToEyePoint( node.getBound()._center, false ) ))
#else
if(node.getPassed(camera,*this))
#endif
handle_cull_callbacks_and_traverse(node);
// Traverse the query subtree if OcclusionQueryNode needs to issue another query.
node.traverseQuery(camera,*this);
// Traverse the debug bounding geometry, if enabled.
node.traverseDebug(*this);
// pop the node's state off the render graph stack.
if(node_state)
popStateSet();
// pop the culling mode.
popCurrentMask();
_firstCullStatus = firstStatus;
_cullingStatus = status;
}
void
StatisticsVisitor::apply( osg::OcclusionQueryNode& oqn )
{
_numOQNs++;
if (oqn.getPassed())
_numPassed++;
traverse( oqn );
}