void
ProxyCullVisitor::handle_cull_callbacks_and_traverse(osg::Node& node)
{
#if OSG_VERSION_GREATER_THAN(3,3,1)
osg::Callback* callback = node.getCullCallback();
if (callback) callback->run(&node, this);
else traverse(node);
#else
osg::NodeCallback* callback = node.getCullCallback();
if (callback) (*callback)(&node,this);
else traverse(node);
#endif
}
bool PosterIntersector::enter( const osg::Node& node )
{
if ( !node.isCullingActive() ) return true;
if ( _polytope.contains(node.getBound()) )
{
if ( node.getCullCallback() )
{
const osg::ClusterCullingCallback* cccb =
dynamic_cast<const osg::ClusterCullingCallback*>( node.getCullCallback() );
if ( cccb && cccb->cull(_intersectionVisitor, 0, NULL) ) return false;
}
return true;
}
return false;
}
void
ProxyCullVisitor::handle_cull_callbacks_and_traverse(osg::Node& node)
{
osg::NodeCallback* callback = node.getCullCallback();
if (callback) (*callback)(&node,this);
else traverse(node);
}
void RemoveQueries::apply( osg::Node& node )
{
QueryCullCallback* qcc = dynamic_cast< QueryCullCallback* >(
node.getCullCallback() );
if( qcc != NULL )
node.setCullCallback( NULL );
traverse( node );
}
void
TerrainCuller::apply(osg::Node& node)
{
// push the node's state.
osg::StateSet* node_state = node.getStateSet();
TileNode* tileNode = dynamic_cast<TileNode*>(&node);
if (tileNode)
{
_currentTileNode = tileNode;
// reset the pointer to the first DrawTileCommand. We keep track of this so
// we can set it's "order" member to zero at the end, so the rendering engine
// knows to blend it with the terrain geometry color.
_firstTileDrawCommandForTile = 0L;
//_currentTileDrawCommands = 0u;
if (!_terrain.patchLayers().empty())
{
// todo: check for patch/virtual
const RenderBindings& bindings = _context->getRenderBindings();
TileRenderModel& renderModel = _currentTileNode->renderModel();
bool pushedMatrix = false;
for (PatchLayerVector::const_iterator i = _terrain.patchLayers().begin(); i != _terrain.patchLayers().end(); ++i)
{
PatchLayer* layer = i->get();
if (layer->getAcceptCallback() == 0L ||
layer->getAcceptCallback()->acceptKey(_currentTileNode->getKey()))
{
// Push this tile's matrix if we haven't already done so:
if (!pushedMatrix)
{
SurfaceNode* surface = tileNode->getSurfaceNode();
// push the surface matrix:
osg::Matrix mvm = *getModelViewMatrix();
surface->computeLocalToWorldMatrix(mvm, this);
pushModelViewMatrix(createOrReuseMatrix(mvm), surface->getReferenceFrame());
pushedMatrix = true;
}
// Add the draw command:
DrawTileCommand* cmd = addDrawCommand(layer->getUID(), &renderModel, 0L, tileNode);
if (cmd)
{
cmd->_drawPatch = true;
cmd->_drawCallback = layer->getDrawCallback();
}
}
}
if (pushedMatrix)
{
popModelViewMatrix();
}
}
}
else
{
SurfaceNode* surface = dynamic_cast<SurfaceNode*>(&node);
if (surface)
{
TileRenderModel& renderModel = _currentTileNode->renderModel();
// push the surface matrix:
osg::Matrix mvm = *getModelViewMatrix();
surface->computeLocalToWorldMatrix(mvm, this);
pushModelViewMatrix(createOrReuseMatrix(mvm), surface->getReferenceFrame());
int order = 0;
// First go through any legit rendering pass data in the Tile and
// and add a DrawCommand for each.
for (unsigned p = 0; p < renderModel._passes.size(); ++p)
{
const RenderingPass& pass = renderModel._passes[p];
DrawTileCommand* cmd = addDrawCommand(pass.sourceUID(), &renderModel, &pass, _currentTileNode);
if (cmd)
{
if (_firstTileDrawCommandForTile == 0L)
{
_firstTileDrawCommandForTile = cmd;
}
else if (cmd->_order < _firstTileDrawCommandForTile->_order)
{
//_firstTileDrawCommandForTile->_order = 1;
_firstTileDrawCommandForTile = cmd;
}
}
}
// If the culler added no draw commands for this tile... we still need
// to draw something or else there will be a hole! So draw a blank tile.
// UID = -1 is the special UID code for a blank.
if (_firstTileDrawCommandForTile == 0L)
{
//OE_INFO << LC << "Adding blank render for tile " << _currentTileNode->getKey().str() << std::endl;
DrawTileCommand* cmd = addDrawCommand(-1, &renderModel, 0L, _currentTileNode);
if (cmd)
cmd->_order = 0;
}
// Set the layer order of the first draw command for this tile to zero,
// to support proper terrain blending.
if (_firstTileDrawCommandForTile)
{
_firstTileDrawCommandForTile->_order = 0;
}
// pop the matrix from the cull stack
popModelViewMatrix();
// update our bounds
_terrain._drawState->_bs.expandBy(surface->getBound());
_terrain._drawState->_box.expandBy(_terrain._drawState->_bs);
}
}
// Handle any CullCallbacks and traverse.
osg::Callback* cullCallback = node.getCullCallback();
if (cullCallback) cullCallback->run(&node, this);
else traverse(node);
}