void
RexTerrainEngineNode::traverse(osg::NodeVisitor& nv)
{
if ( nv.getVisitorType() == nv.CULL_VISITOR )
{
// Inform the registry of the current frame so that Tiles have access
// to the information.
if ( _liveTiles.valid() && nv.getFrameStamp() )
{
_liveTiles->setTraversalFrame( nv.getFrameStamp()->getFrameNumber() );
}
}
#if 0
static int c = 0;
if ( ++c % 60 == 0 )
{
OE_NOTICE << LC << "Live = " << _liveTiles->size() << ", Dead = " << _deadTiles->size() << std::endl;
_liveTiles->run( CheckForOrphans() );
}
#endif
if ( nv.getVisitorType() == nv.CULL_VISITOR && _loader.valid() ) // ensures that postInitialize has run
{
osgUtil::CullVisitor* cv = static_cast<osgUtil::CullVisitor*>(&nv);
this->getEngineContext()->startCull( cv );
TerrainCuller culler;
culler.setFrameStamp(new osg::FrameStamp(*nv.getFrameStamp()));
culler.setDatabaseRequestHandler(nv.getDatabaseRequestHandler());
culler.pushReferenceViewPoint(cv->getReferenceViewPoint());
culler.pushViewport(cv->getViewport());
culler.pushProjectionMatrix(cv->getProjectionMatrix());
culler.pushModelViewMatrix(cv->getModelViewMatrix(), cv->getCurrentCamera()->getReferenceFrame());
culler._camera = cv->getCurrentCamera();
culler._context = this->getEngineContext();
culler.setup(*_update_mapf, this->getEngineContext()->getRenderBindings(), getSurfaceStateSet());
// Assemble the terrain drawable:
_terrain->accept(culler);
// If we're using geometry pooling, optimize the drawable for shared state:
if (getEngineContext()->getGeometryPool()->isEnabled())
{
culler._terrain.sortDrawCommands();
}
// The common stateset for the terrain:
cv->pushStateSet(_terrain->getOrCreateStateSet());
// Push all the layers to draw on to the cull visitor,
// keeping track of render order.
LayerDrawable* lastLayer = 0L;
unsigned order = 0;
bool surfaceStateSetPushed = false;
// OE_INFO << "CULL:\n";
for(LayerDrawableList::iterator i = culler._terrain.layers().begin();
i != culler._terrain.layers().end();
++i)
{
if (!i->get()->_tiles.empty())
{
lastLayer = i->get();
lastLayer->_order = -1;
// if this is a RENDERTYPE_TILE, we need to activate the default surface state set.
if (lastLayer->_layer && lastLayer->_layer->getRenderType() == Layer::RENDERTYPE_TILE)
{
lastLayer->_order = order++;
if (!surfaceStateSetPushed)
cv->pushStateSet(getSurfaceStateSet());
surfaceStateSetPushed = true;
}
else if (surfaceStateSetPushed)
{
cv->popStateSet();
surfaceStateSetPushed = false;
}
// OE_INFO << " Apply: " << (lastLayer->_layer ? lastLayer->_layer->getName() : "-1") << std::endl;
cv->apply(*lastLayer);
}
}
// The last layer to render must clear up the OSG state,
// otherwise it will be corrupt and can lead to crashing.
if (lastLayer)
{
lastLayer->_clearOsgState = true;
}
if (surfaceStateSetPushed)
{
cv->popStateSet();
surfaceStateSetPushed = false;
}
// pop the common terrain state set
cv->popStateSet();
this->getEngineContext()->endCull( cv );
// traverse all the other children (geometry pool, loader/unloader, etc.)
for (unsigned i = 0; i<getNumChildren(); ++i)
{
if (getChild(i) != _terrain.get())
getChild(i)->accept(nv);
}
}
//else
{
TerrainEngineNode::traverse( nv );
}
}
void
RexTerrainEngineNode::traverse(osg::NodeVisitor& nv)
{
if (nv.getVisitorType() == nv.UPDATE_VISITOR)
{
if (_renderModelUpdateRequired)
{
UpdateRenderModels visitor(_mapFrame);
_terrain->accept(visitor);
_renderModelUpdateRequired = false;
}
TerrainEngineNode::traverse( nv );
}
else if ( nv.getVisitorType() == nv.CULL_VISITOR )
{
// Inform the registry of the current frame so that Tiles have access
// to the information.
if ( _liveTiles.valid() && nv.getFrameStamp() )
{
_liveTiles->setTraversalFrame( nv.getFrameStamp()->getFrameNumber() );
}
osgUtil::CullVisitor* cv = static_cast<osgUtil::CullVisitor*>(&nv);
getEngineContext()->startCull( cv );
TerrainCuller culler;
culler.setFrameStamp(new osg::FrameStamp(*nv.getFrameStamp()));
culler.setDatabaseRequestHandler(nv.getDatabaseRequestHandler());
culler.pushReferenceViewPoint(cv->getReferenceViewPoint());
culler.pushViewport(cv->getViewport());
culler.pushProjectionMatrix(cv->getProjectionMatrix());
culler.pushModelViewMatrix(cv->getModelViewMatrix(), cv->getCurrentCamera()->getReferenceFrame());
culler._camera = cv->getCurrentCamera();
culler._context = this->getEngineContext();
// Prepare the culler with the set of renderable layers:
culler.setup(_mapFrame, this->getEngineContext()->getRenderBindings());
// Assemble the terrain drawable:
_terrain->accept(culler);
// If we're using geometry pooling, optimize the drawable for shared state:
if (getEngineContext()->getGeometryPool()->isEnabled())
{
culler._terrain.sortDrawCommands();
}
// The common stateset for the terrain:
cv->pushStateSet(_terrain->getOrCreateStateSet());
// Push all the layers to draw on to the cull visitor,
// keeping track of render order.
LayerDrawable* lastLayer = 0L;
unsigned order = 0;
bool surfaceStateSetPushed = false;
//OE_INFO << "CULL\n";
for(LayerDrawableList::iterator i = culler._terrain.layers().begin();
i != culler._terrain.layers().end();
++i)
{
if (!i->get()->_tiles.empty())
{
lastLayer = i->get();
lastLayer->_order = -1;
// if this is a RENDERTYPE_TILE, we need to activate the default surface state set.
if (lastLayer->_renderType == Layer::RENDERTYPE_TILE)
{
lastLayer->_order = order++;
if (!surfaceStateSetPushed)
cv->pushStateSet(getSurfaceStateSet());
surfaceStateSetPushed = true;
}
else if (surfaceStateSetPushed)
{
cv->popStateSet();
surfaceStateSetPushed = false;
}
//OE_INFO << " Apply: " << (lastLayer->_layer ? lastLayer->_layer->getName() : "-1") << "; tiles=" << lastLayer->_tiles.size() << std::endl;
cv->apply(*lastLayer);
}
}
// The last layer to render must clear up the OSG state,
// otherwise it will be corrupt and can lead to crashing.
if (lastLayer)
{
lastLayer->_clearOsgState = true;
}
if (surfaceStateSetPushed)
{
cv->popStateSet();
surfaceStateSetPushed = false;
}
// pop the common terrain state set
cv->popStateSet();
this->getEngineContext()->endCull( cv );
// If the culler found any orphaned data, we need to update the render model
// during the next update cycle.
if (culler._orphanedPassesDetected > 0u)
{
_renderModelUpdateRequired = true;
OE_INFO << LC << "Detected " << culler._orphanedPassesDetected << " orphaned rendering passes\n";
}
// we don't call this b/c we don't want _terrain
//TerrainEngineNode::traverse(nv);
// traverse all the other children (geometry pool, loader/unloader, etc.)
_geometryPool->accept(nv);
_loader->accept(nv);
_unloader->accept(nv);
_releaser->accept(nv);
_rasterizer->accept(nv);
}
else
{
TerrainEngineNode::traverse( nv );
}
}